Introduce nvim namespace: Move files.

Move files from src/ to src/nvim/.
- src/nvim/ becomes the new root dir for nvim executable sources.
- src/libnvim/ is planned to become root dir of the neovim library.

1 files changed, 0 insertions, 7818 deletions

diff --git a/src/syntax.c b/src/syntax.c
deleted file mode 100644
index 41128868fc..0000000000
--- a/src/syntax.c
+++ /dev/null
@@ -1,7818 +0,0 @@
-/*
- * VIM - Vi IMproved	by Bram Moolenaar
- *
- * Do ":help uganda"  in Vim to read copying and usage conditions.
- * Do ":help credits" in Vim to see a list of people who contributed.
- * See README.txt for an overview of the Vim source code.
- */
-
-/*
- * syntax.c: code for syntax highlighting
- */
-
-#include <string.h>
-#include <stdlib.h>
-
-#include "vim.h"
-#include "syntax.h"
-#include "charset.h"
-#include "eval.h"
-#include "ex_cmds2.h"
-#include "ex_docmd.h"
-#include "fileio.h"
-#include "fold.h"
-#include "hashtab.h"
-#include "indent_c.h"
-#include "mbyte.h"
-#include "memline.h"
-#include "memory.h"
-#include "message.h"
-#include "misc1.h"
-#include "misc2.h"
-#include "keymap.h"
-#include "garray.h"
-#include "option.h"
-#include "os_unix.h"
-#include "path.h"
-#include "regexp.h"
-#include "screen.h"
-#include "term.h"
-#include "ui.h"
-#include "os/os.h"
-
-/*
- * Structure that stores information about a highlight group.
- * The ID of a highlight group is also called group ID.  It is the index in
- * the highlight_ga array PLUS ONE.
- */
-struct hl_group {
-  char_u      *sg_name;         /* highlight group name */
-  char_u      *sg_name_u;       /* uppercase of sg_name */
-  /* for normal terminals */
-  int sg_term;                  /* "term=" highlighting attributes */
-  char_u      *sg_start;        /* terminal string for start highl */
-  char_u      *sg_stop;         /* terminal string for stop highl */
-  int sg_term_attr;             /* Screen attr for term mode */
-  /* for color terminals */
-  int sg_cterm;                 /* "cterm=" highlighting attr */
-  int sg_cterm_bold;            /* bold attr was set for light color */
-  int sg_cterm_fg;              /* terminal fg color number + 1 */
-  int sg_cterm_bg;              /* terminal bg color number + 1 */
-  int sg_cterm_attr;            /* Screen attr for color term mode */
-  /* Store the sp color name for the GUI or synIDattr() */
-  int sg_gui;                   /* "gui=" highlighting attributes */
-  char_u      *sg_gui_fg_name;  /* GUI foreground color name */
-  char_u      *sg_gui_bg_name;  /* GUI background color name */
-  char_u      *sg_gui_sp_name;  /* GUI special color name */
-  int sg_link;                  /* link to this highlight group ID */
-  int sg_set;                   /* combination of SG_* flags */
-  scid_T sg_scriptID;           /* script in which the group was last set */
-};
-
-#define SG_TERM         1       /* term has been set */
-#define SG_CTERM        2       /* cterm has been set */
-#define SG_GUI          4       /* gui has been set */
-#define SG_LINK         8       /* link has been set */
-
-static garray_T highlight_ga;   /* highlight groups for 'highlight' option */
-
-#define HL_TABLE() ((struct hl_group *)((highlight_ga.ga_data)))
-
-#define MAX_HL_ID       20000   /* maximum value for a highlight ID. */
-
-/* Flags to indicate an additional string for highlight name completion. */
-static int include_none = 0;    /* when 1 include "None" */
-static int include_default = 0; /* when 1 include "default" */
-static int include_link = 0;    /* when 2 include "link" and "clear" */
-
-/*
- * The "term", "cterm" and "gui" arguments can be any combination of the
- * following names, separated by commas (but no spaces!).
- */
-static char *(hl_name_table[]) =
-{"bold", "standout", "underline", "undercurl",
- "italic", "reverse", "inverse", "NONE"};
-static int hl_attr_table[] =
-{HL_BOLD, HL_STANDOUT, HL_UNDERLINE, HL_UNDERCURL, HL_ITALIC, HL_INVERSE,
- HL_INVERSE, 0};
-
-static int get_attr_entry(garray_T *table, attrentry_T *aep);
-static void syn_unadd_group(void);
-static void set_hl_attr(int idx);
-static void highlight_list_one(int id);
-static int highlight_list_arg(int id, int didh, int type, int iarg,
-                              char_u *sarg,
-                              char *name);
-static int syn_add_group(char_u *name);
-static int syn_list_header(int did_header, int outlen, int id);
-static int hl_has_settings(int idx, int check_link);
-static void highlight_clear(int idx);
-
-
-/*
- * An attribute number is the index in attr_table plus ATTR_OFF.
- */
-#define ATTR_OFF (HL_ALL + 1)
-
-
-#define SYN_NAMELEN     50              /* maximum length of a syntax name */
-
-/* different types of offsets that are possible */
-#define SPO_MS_OFF      0       /* match  start offset */
-#define SPO_ME_OFF      1       /* match  end	offset */
-#define SPO_HS_OFF      2       /* highl. start offset */
-#define SPO_HE_OFF      3       /* highl. end	offset */
-#define SPO_RS_OFF      4       /* region start offset */
-#define SPO_RE_OFF      5       /* region end	offset */
-#define SPO_LC_OFF      6       /* leading context offset */
-#define SPO_COUNT       7
-
-static char *(spo_name_tab[SPO_COUNT]) =
-{"ms=", "me=", "hs=", "he=", "rs=", "re=", "lc="};
-
-/*
- * The patterns that are being searched for are stored in a syn_pattern.
- * A match item consists of one pattern.
- * A start/end item consists of n start patterns and m end patterns.
- * A start/skip/end item consists of n start patterns, one skip pattern and m
- * end patterns.
- * For the latter two, the patterns are always consecutive: start-skip-end.
- *
- * A character offset can be given for the matched text (_m_start and _m_end)
- * and for the actually highlighted text (_h_start and _h_end).
- */
-typedef struct syn_pattern {
-  char sp_type;                         /* see SPTYPE_ defines below */
-  char sp_syncing;                      /* this item used for syncing */
-  int sp_flags;                         /* see HL_ defines below */
-  int sp_cchar;                         /* conceal substitute character */
-  struct sp_syn sp_syn;                 /* struct passed to in_id_list() */
-  short sp_syn_match_id;                /* highlight group ID of pattern */
-  char_u      *sp_pattern;              /* regexp to match, pattern */
-  regprog_T   *sp_prog;                 /* regexp to match, program */
-  syn_time_T sp_time;
-  int sp_ic;                            /* ignore-case flag for sp_prog */
-  short sp_off_flags;                   /* see below */
-  int sp_offsets[SPO_COUNT];            /* offsets */
-  short       *sp_cont_list;            /* cont. group IDs, if non-zero */
-  short       *sp_next_list;            /* next group IDs, if non-zero */
-  int sp_sync_idx;                      /* sync item index (syncing only) */
-  int sp_line_id;                       /* ID of last line where tried */
-  int sp_startcol;                      /* next match in sp_line_id line */
-} synpat_T;
-
-/* The sp_off_flags are computed like this:
- * offset from the start of the matched text: (1 << SPO_XX_OFF)
- * offset from the end	 of the matched text: (1 << (SPO_XX_OFF + SPO_COUNT))
- * When both are present, only one is used.
- */
-
-#define SPTYPE_MATCH    1       /* match keyword with this group ID */
-#define SPTYPE_START    2       /* match a regexp, start of item */
-#define SPTYPE_END      3       /* match a regexp, end of item */
-#define SPTYPE_SKIP     4       /* match a regexp, skip within item */
-
-
-#define SYN_ITEMS(buf)  ((synpat_T *)((buf)->b_syn_patterns.ga_data))
-
-#define NONE_IDX        -2      /* value of sp_sync_idx for "NONE" */
-
-/*
- * Flags for b_syn_sync_flags:
- */
-#define SF_CCOMMENT     0x01    /* sync on a C-style comment */
-#define SF_MATCH        0x02    /* sync by matching a pattern */
-
-#define SYN_STATE_P(ssp)    ((bufstate_T *)((ssp)->ga_data))
-
-#define MAXKEYWLEN      80          /* maximum length of a keyword */
-
-/*
- * The attributes of the syntax item that has been recognized.
- */
-static int current_attr = 0;        /* attr of current syntax word */
-static int current_id = 0;          /* ID of current char for syn_get_id() */
-static int current_trans_id = 0;    /* idem, transparency removed */
-static int current_flags = 0;
-static int current_seqnr = 0;
-static int current_sub_char = 0;
-
-typedef struct syn_cluster_S {
-  char_u          *scl_name;        /* syntax cluster name */
-  char_u          *scl_name_u;      /* uppercase of scl_name */
-  short           *scl_list;        /* IDs in this syntax cluster */
-} syn_cluster_T;
-
-/*
- * Methods of combining two clusters
- */
-#define CLUSTER_REPLACE     1   /* replace first list with second */
-#define CLUSTER_ADD         2   /* add second list to first */
-#define CLUSTER_SUBTRACT    3   /* subtract second list from first */
-
-#define SYN_CLSTR(buf)  ((syn_cluster_T *)((buf)->b_syn_clusters.ga_data))
-
-/*
- * Syntax group IDs have different types:
- *     0 - 19999  normal syntax groups
- * 20000 - 20999  ALLBUT indicator (current_syn_inc_tag added)
- * 21000 - 21999  TOP indicator (current_syn_inc_tag added)
- * 22000 - 22999  CONTAINED indicator (current_syn_inc_tag added)
- * 23000 - 32767  cluster IDs (subtract SYNID_CLUSTER for the cluster ID)
- */
-#define SYNID_ALLBUT    MAX_HL_ID   /* syntax group ID for contains=ALLBUT */
-#define SYNID_TOP       21000       /* syntax group ID for contains=TOP */
-#define SYNID_CONTAINED 22000       /* syntax group ID for contains=CONTAINED */
-#define SYNID_CLUSTER   23000       /* first syntax group ID for clusters */
-
-#define MAX_SYN_INC_TAG 999         /* maximum before the above overflow */
-#define MAX_CLUSTER_ID  (32767 - SYNID_CLUSTER)
-
-/*
- * Annoying Hack(TM):  ":syn include" needs this pointer to pass to
- * expand_filename().  Most of the other syntax commands don't need it, so
- * instead of passing it to them, we stow it here.
- */
-static char_u **syn_cmdlinep;
-
-/*
- * Another Annoying Hack(TM):  To prevent rules from other ":syn include"'d
- * files from leaking into ALLBUT lists, we assign a unique ID to the
- * rules in each ":syn include"'d file.
- */
-static int current_syn_inc_tag = 0;
-static int running_syn_inc_tag = 0;
-
-/*
- * In a hashtable item "hi_key" points to "keyword" in a keyentry.
- * This avoids adding a pointer to the hashtable item.
- * KE2HIKEY() converts a var pointer to a hashitem key pointer.
- * HIKEY2KE() converts a hashitem key pointer to a var pointer.
- * HI2KE() converts a hashitem pointer to a var pointer.
- */
-static keyentry_T dumkey;
-#define KE2HIKEY(kp)  ((kp)->keyword)
-#define HIKEY2KE(p)   ((keyentry_T *)((p) - (dumkey.keyword - (char_u *)&dumkey)))
-#define HI2KE(hi)      HIKEY2KE((hi)->hi_key)
-
-/*
- * To reduce the time spent in keepend(), remember at which level in the state
- * stack the first item with "keepend" is present.  When "-1", there is no
- * "keepend" on the stack.
- */
-static int keepend_level = -1;
-
-static char msg_no_items[] = N_("No Syntax items defined for this buffer");
-
-/*
- * For the current state we need to remember more than just the idx.
- * When si_m_endpos.lnum is 0, the items other than si_idx are unknown.
- * (The end positions have the column number of the next char)
- */
-typedef struct state_item {
-  int si_idx;                           /* index of syntax pattern or
-                                           KEYWORD_IDX */
-  int si_id;                            /* highlight group ID for keywords */
-  int si_trans_id;                      /* idem, transparency removed */
-  int si_m_lnum;                        /* lnum of the match */
-  int si_m_startcol;                    /* starting column of the match */
-  lpos_T si_m_endpos;                   /* just after end posn of the match */
-  lpos_T si_h_startpos;                 /* start position of the highlighting */
-  lpos_T si_h_endpos;                   /* end position of the highlighting */
-  lpos_T si_eoe_pos;                    /* end position of end pattern */
-  int si_end_idx;                       /* group ID for end pattern or zero */
-  int si_ends;                          /* if match ends before si_m_endpos */
-  int si_attr;                          /* attributes in this state */
-  long si_flags;                        /* HL_HAS_EOL flag in this state, and
-                                         * HL_SKIP* for si_next_list */
-  int si_seqnr;                         /* sequence number */
-  int si_cchar;                         /* substitution character for conceal */
-  short       *si_cont_list;            /* list of contained groups */
-  short       *si_next_list;            /* nextgroup IDs after this item ends */
-  reg_extmatch_T *si_extmatch;          /* \z(...\) matches from start
-                                         * pattern */
-} stateitem_T;
-
-#define KEYWORD_IDX     -1          /* value of si_idx for keywords */
-#define ID_LIST_ALL     (short *)-1 /* valid of si_cont_list for containing all
-                                       but contained groups */
-
-static int next_seqnr = 0;              /* value to use for si_seqnr */
-
-/*
- * Struct to reduce the number of arguments to get_syn_options(), it's used
- * very often.
- */
-typedef struct {
-  int flags;                    /* flags for contained and transparent */
-  int keyword;                  /* TRUE for ":syn keyword" */
-  int         *sync_idx;        /* syntax item for "grouphere" argument, NULL
-                                   if not allowed */
-  char has_cont_list;           /* TRUE if "cont_list" can be used */
-  short       *cont_list;       /* group IDs for "contains" argument */
-  short       *cont_in_list;    /* group IDs for "containedin" argument */
-  short       *next_list;       /* group IDs for "nextgroup" argument */
-} syn_opt_arg_T;
-
-/*
- * The next possible match in the current line for any pattern is remembered,
- * to avoid having to try for a match in each column.
- * If next_match_idx == -1, not tried (in this line) yet.
- * If next_match_col == MAXCOL, no match found in this line.
- * (All end positions have the column of the char after the end)
- */
-static int next_match_col;              /* column for start of next match */
-static lpos_T next_match_m_endpos;      /* position for end of next match */
-static lpos_T next_match_h_startpos;  /* pos. for highl. start of next match */
-static lpos_T next_match_h_endpos;      /* pos. for highl. end of next match */
-static int next_match_idx;              /* index of matched item */
-static long next_match_flags;           /* flags for next match */
-static lpos_T next_match_eos_pos;       /* end of start pattn (start region) */
-static lpos_T next_match_eoe_pos;       /* pos. for end of end pattern */
-static int next_match_end_idx;          /* ID of group for end pattn or zero */
-static reg_extmatch_T *next_match_extmatch = NULL;
-
-/*
- * A state stack is an array of integers or stateitem_T, stored in a
- * garray_T.  A state stack is invalid if it's itemsize entry is zero.
- */
-#define INVALID_STATE(ssp)  ((ssp)->ga_itemsize == 0)
-#define VALID_STATE(ssp)    ((ssp)->ga_itemsize != 0)
-
-/*
- * The current state (within the line) of the recognition engine.
- * When current_state.ga_itemsize is 0 the current state is invalid.
- */
-static win_T    *syn_win;               /* current window for highlighting */
-static buf_T    *syn_buf;               /* current buffer for highlighting */
-static synblock_T *syn_block;           /* current buffer for highlighting */
-static linenr_T current_lnum = 0;       /* lnum of current state */
-static colnr_T current_col = 0;         /* column of current state */
-static int current_state_stored = 0;      /* TRUE if stored current state
-                                           * after setting current_finished */
-static int current_finished = 0;        /* current line has been finished */
-static garray_T current_state           /* current stack of state_items */
-  = {0, 0, 0, 0, NULL};
-static short    *current_next_list = NULL; /* when non-zero, nextgroup list */
-static int current_next_flags = 0;      /* flags for current_next_list */
-static int current_line_id = 0;         /* unique number for current line */
-
-#define CUR_STATE(idx)  ((stateitem_T *)(current_state.ga_data))[idx]
-
-static void syn_sync(win_T *wp, linenr_T lnum, synstate_T *last_valid);
-static int syn_match_linecont(linenr_T lnum);
-static void syn_start_line(void);
-static void syn_update_ends(int startofline);
-static void syn_stack_alloc(void);
-static int syn_stack_cleanup(void);
-static void syn_stack_free_entry(synblock_T *block, synstate_T *p);
-static synstate_T *syn_stack_find_entry(linenr_T lnum);
-static synstate_T *store_current_state(void);
-static void load_current_state(synstate_T *from);
-static void invalidate_current_state(void);
-static int syn_stack_equal(synstate_T *sp);
-static void validate_current_state(void);
-static int syn_finish_line(int syncing);
-static int syn_current_attr(int syncing, int displaying, int *can_spell,
-                            int keep_state);
-static int did_match_already(int idx, garray_T *gap);
-static stateitem_T *push_next_match(stateitem_T *cur_si);
-static void check_state_ends(void);
-static void update_si_attr(int idx);
-static void check_keepend(void);
-static void update_si_end(stateitem_T *sip, int startcol, int force);
-static short *copy_id_list(short *list);
-static int in_id_list(stateitem_T *item, short *cont_list,
-                      struct sp_syn *ssp,
-                      int contained);
-static void push_current_state(int idx);
-static void pop_current_state(void);
-static void syn_clear_time(syn_time_T *tt);
-static void syntime_clear(void);
-static int syn_compare_syntime(const void *v1, const void *v2);
-static void syntime_report(void);
-static int syn_time_on = FALSE;
-# define IF_SYN_TIME(p) (p)
-
-static void syn_stack_apply_changes_block(synblock_T *block, buf_T *buf);
-static void find_endpos(int idx, lpos_T *startpos, lpos_T *m_endpos,
-                        lpos_T *hl_endpos, long *flagsp, lpos_T *end_endpos,
-                        int *end_idx, reg_extmatch_T *start_ext);
-static void clear_syn_state(synstate_T *p);
-static void clear_current_state(void);
-
-static void limit_pos(lpos_T *pos, lpos_T *limit);
-static void limit_pos_zero(lpos_T *pos, lpos_T *limit);
-static void syn_add_end_off(lpos_T *result, regmmatch_T *regmatch,
-                            synpat_T *spp, int idx,
-                            int extra);
-static void syn_add_start_off(lpos_T *result, regmmatch_T *regmatch,
-                              synpat_T *spp, int idx,
-                              int extra);
-static char_u *syn_getcurline(void);
-static int syn_regexec(regmmatch_T *rmp, linenr_T lnum, colnr_T col,
-                       syn_time_T *st);
-static int check_keyword_id(char_u *line, int startcol, int *endcol,
-                            long *flags, short **next_list,
-                            stateitem_T *cur_si,
-                            int *ccharp);
-static keyentry_T *match_keyword(char_u *keyword, hashtab_T *ht,
-                                 stateitem_T *cur_si);
-static void syn_cmd_case(exarg_T *eap, int syncing);
-static void syn_cmd_spell(exarg_T *eap, int syncing);
-static void syntax_sync_clear(void);
-static void syn_remove_pattern(synblock_T *block, int idx);
-static void syn_clear_pattern(synblock_T *block, int i);
-static void syn_clear_cluster(synblock_T *block, int i);
-static void syn_cmd_clear(exarg_T *eap, int syncing);
-static void syn_cmd_conceal(exarg_T *eap, int syncing);
-static void syn_clear_one(int id, int syncing);
-static void syn_cmd_on(exarg_T *eap, int syncing);
-static void syn_cmd_enable(exarg_T *eap, int syncing);
-static void syn_cmd_reset(exarg_T *eap, int syncing);
-static void syn_cmd_manual(exarg_T *eap, int syncing);
-static void syn_cmd_off(exarg_T *eap, int syncing);
-static void syn_cmd_onoff(exarg_T *eap, char *name);
-static void syn_cmd_list(exarg_T *eap, int syncing);
-static void syn_lines_msg(void);
-static void syn_match_msg(void);
-static void syn_stack_free_block(synblock_T *block);
-static void syn_list_one(int id, int syncing, int link_only);
-static void syn_list_cluster(int id);
-static void put_id_list(char_u *name, short *list, int attr);
-static void put_pattern(char *s, int c, synpat_T *spp, int attr);
-static int syn_list_keywords(int id, hashtab_T *ht, int did_header,
-                             int attr);
-static void syn_clear_keyword(int id, hashtab_T *ht);
-static void clear_keywtab(hashtab_T *ht);
-static void add_keyword(char_u *name, int id, int flags,
-                        short *cont_in_list, short *next_list,
-                        int conceal_char);
-static char_u *get_group_name(char_u *arg, char_u **name_end);
-static char_u *get_syn_options(char_u *arg, syn_opt_arg_T *opt,
-                               int *conceal_char);
-static void syn_cmd_include(exarg_T *eap, int syncing);
-static void syn_cmd_keyword(exarg_T *eap, int syncing);
-static void syn_cmd_match(exarg_T *eap, int syncing);
-static void syn_cmd_region(exarg_T *eap, int syncing);
-static int syn_compare_stub(const void *v1, const void *v2);
-static void syn_cmd_cluster(exarg_T *eap, int syncing);
-static int syn_scl_name2id(char_u *name);
-static int syn_scl_namen2id(char_u *linep, int len);
-static int syn_check_cluster(char_u *pp, int len);
-static int syn_add_cluster(char_u *name);
-static void init_syn_patterns(void);
-static char_u *get_syn_pattern(char_u *arg, synpat_T *ci);
-static void syn_cmd_sync(exarg_T *eap, int syncing);
-static int get_id_list(char_u **arg, int keylen, short **list);
-static void syn_combine_list(short **clstr1, short **clstr2,
-                             int list_op);
-static void syn_incl_toplevel(int id, int *flagsp);
-
-/*
- * Start the syntax recognition for a line.  This function is normally called
- * from the screen updating, once for each displayed line.
- * The buffer is remembered in syn_buf, because get_syntax_attr() doesn't get
- * it.	Careful: curbuf and curwin are likely to point to another buffer and
- * window.
- */
-void syntax_start(win_T *wp, linenr_T lnum)
-{
-  synstate_T  *p;
-  synstate_T  *last_valid = NULL;
-  synstate_T  *last_min_valid = NULL;
-  synstate_T  *sp, *prev = NULL;
-  linenr_T parsed_lnum;
-  linenr_T first_stored;
-  int dist;
-  static int changedtick = 0;           /* remember the last change ID */
-
-  current_sub_char = NUL;
-
-  /*
-   * After switching buffers, invalidate current_state.
-   * Also do this when a change was made, the current state may be invalid
-   * then.
-   */
-  if (syn_block != wp->w_s || changedtick != syn_buf->b_changedtick) {
-    invalidate_current_state();
-    syn_buf = wp->w_buffer;
-    syn_block = wp->w_s;
-  }
-  changedtick = syn_buf->b_changedtick;
-  syn_win = wp;
-
-  /*
-   * Allocate syntax stack when needed.
-   */
-  syn_stack_alloc();
-  if (syn_block->b_sst_array == NULL)
-    return;             /* out of memory */
-  syn_block->b_sst_lasttick = display_tick;
-
-  /*
-   * If the state of the end of the previous line is useful, store it.
-   */
-  if (VALID_STATE(&current_state)
-      && current_lnum < lnum
-      && current_lnum < syn_buf->b_ml.ml_line_count) {
-    (void)syn_finish_line(FALSE);
-    if (!current_state_stored) {
-      ++current_lnum;
-      (void)store_current_state();
-    }
-
-    /*
-     * If the current_lnum is now the same as "lnum", keep the current
-     * state (this happens very often!).  Otherwise invalidate
-     * current_state and figure it out below.
-     */
-    if (current_lnum != lnum)
-      invalidate_current_state();
-  } else
-    invalidate_current_state();
-
-  /*
-   * Try to synchronize from a saved state in b_sst_array[].
-   * Only do this if lnum is not before and not to far beyond a saved state.
-   */
-  if (INVALID_STATE(&current_state) && syn_block->b_sst_array != NULL) {
-    /* Find last valid saved state before start_lnum. */
-    for (p = syn_block->b_sst_first; p != NULL; p = p->sst_next) {
-      if (p->sst_lnum > lnum)
-        break;
-      if (p->sst_lnum <= lnum && p->sst_change_lnum == 0) {
-        last_valid = p;
-        if (p->sst_lnum >= lnum - syn_block->b_syn_sync_minlines)
-          last_min_valid = p;
-      }
-    }
-    if (last_min_valid != NULL)
-      load_current_state(last_min_valid);
-  }
-
-  /*
-   * If "lnum" is before or far beyond a line with a saved state, need to
-   * re-synchronize.
-   */
-  if (INVALID_STATE(&current_state)) {
-    syn_sync(wp, lnum, last_valid);
-    if (current_lnum == 1)
-      /* First line is always valid, no matter "minlines". */
-      first_stored = 1;
-    else
-      /* Need to parse "minlines" lines before state can be considered
-       * valid to store. */
-      first_stored = current_lnum + syn_block->b_syn_sync_minlines;
-  } else
-    first_stored = current_lnum;
-
-  /*
-   * Advance from the sync point or saved state until the current line.
-   * Save some entries for syncing with later on.
-   */
-  if (syn_block->b_sst_len <= Rows)
-    dist = 999999;
-  else
-    dist = syn_buf->b_ml.ml_line_count / (syn_block->b_sst_len - Rows) + 1;
-  while (current_lnum < lnum) {
-    syn_start_line();
-    (void)syn_finish_line(FALSE);
-    ++current_lnum;
-
-    /* If we parsed at least "minlines" lines or started at a valid
-     * state, the current state is considered valid. */
-    if (current_lnum >= first_stored) {
-      /* Check if the saved state entry is for the current line and is
-       * equal to the current state.  If so, then validate all saved
-       * states that depended on a change before the parsed line. */
-      if (prev == NULL)
-        prev = syn_stack_find_entry(current_lnum - 1);
-      if (prev == NULL)
-        sp = syn_block->b_sst_first;
-      else
-        sp = prev;
-      while (sp != NULL && sp->sst_lnum < current_lnum)
-        sp = sp->sst_next;
-      if (sp != NULL
-          && sp->sst_lnum == current_lnum
-          && syn_stack_equal(sp)) {
-        parsed_lnum = current_lnum;
-        prev = sp;
-        while (sp != NULL && sp->sst_change_lnum <= parsed_lnum) {
-          if (sp->sst_lnum <= lnum)
-            /* valid state before desired line, use this one */
-            prev = sp;
-          else if (sp->sst_change_lnum == 0)
-            /* past saved states depending on change, break here. */
-            break;
-          sp->sst_change_lnum = 0;
-          sp = sp->sst_next;
-        }
-        load_current_state(prev);
-      }
-      /* Store the state at this line when it's the first one, the line
-       * where we start parsing, or some distance from the previously
-       * saved state.  But only when parsed at least 'minlines'. */
-      else if (prev == NULL
-               || current_lnum == lnum
-               || current_lnum >= prev->sst_lnum + dist)
-        prev = store_current_state();
-    }
-
-    /* This can take a long time: break when CTRL-C pressed.  The current
-     * state will be wrong then. */
-    line_breakcheck();
-    if (got_int) {
-      current_lnum = lnum;
-      break;
-    }
-  }
-
-  syn_start_line();
-}
-
-/*
- * We cannot simply discard growarrays full of state_items or buf_states; we
- * have to manually release their extmatch pointers first.
- */
-static void clear_syn_state(synstate_T *p)
-{
-  int i;
-  garray_T    *gap;
-
-  if (p->sst_stacksize > SST_FIX_STATES) {
-    gap = &(p->sst_union.sst_ga);
-    for (i = 0; i < gap->ga_len; i++)
-      unref_extmatch(SYN_STATE_P(gap)[i].bs_extmatch);
-    ga_clear(gap);
-  } else {
-    for (i = 0; i < p->sst_stacksize; i++)
-      unref_extmatch(p->sst_union.sst_stack[i].bs_extmatch);
-  }
-}
-
-/*
- * Cleanup the current_state stack.
- */
-static void clear_current_state(void)
-{
-  int i;
-  stateitem_T *sip;
-
-  sip = (stateitem_T *)(current_state.ga_data);
-  for (i = 0; i < current_state.ga_len; i++)
-    unref_extmatch(sip[i].si_extmatch);
-  ga_clear(&current_state);
-}
-
-/*
- * Try to find a synchronisation point for line "lnum".
- *
- * This sets current_lnum and the current state.  One of three methods is
- * used:
- * 1. Search backwards for the end of a C-comment.
- * 2. Search backwards for given sync patterns.
- * 3. Simply start on a given number of lines above "lnum".
- */
-static void syn_sync(win_T *wp, linenr_T start_lnum, synstate_T *last_valid)
-{
-  buf_T       *curbuf_save;
-  win_T       *curwin_save;
-  pos_T cursor_save;
-  int idx;
-  linenr_T lnum;
-  linenr_T end_lnum;
-  linenr_T break_lnum;
-  int had_sync_point;
-  stateitem_T *cur_si;
-  synpat_T    *spp;
-  char_u      *line;
-  int found_flags = 0;
-  int found_match_idx = 0;
-  linenr_T found_current_lnum = 0;
-  int found_current_col= 0;
-  lpos_T found_m_endpos;
-  colnr_T prev_current_col;
-
-  /*
-   * Clear any current state that might be hanging around.
-   */
-  invalidate_current_state();
-
-  /*
-   * Start at least "minlines" back.  Default starting point for parsing is
-   * there.
-   * Start further back, to avoid that scrolling backwards will result in
-   * resyncing for every line.  Now it resyncs only one out of N lines,
-   * where N is minlines * 1.5, or minlines * 2 if minlines is small.
-   * Watch out for overflow when minlines is MAXLNUM.
-   */
-  if (syn_block->b_syn_sync_minlines > start_lnum)
-    start_lnum = 1;
-  else {
-    if (syn_block->b_syn_sync_minlines == 1)
-      lnum = 1;
-    else if (syn_block->b_syn_sync_minlines < 10)
-      lnum = syn_block->b_syn_sync_minlines * 2;
-    else
-      lnum = syn_block->b_syn_sync_minlines * 3 / 2;
-    if (syn_block->b_syn_sync_maxlines != 0
-        && lnum > syn_block->b_syn_sync_maxlines)
-      lnum = syn_block->b_syn_sync_maxlines;
-    if (lnum >= start_lnum)
-      start_lnum = 1;
-    else
-      start_lnum -= lnum;
-  }
-  current_lnum = start_lnum;
-
-  /*
-   * 1. Search backwards for the end of a C-style comment.
-   */
-  if (syn_block->b_syn_sync_flags & SF_CCOMMENT) {
-    /* Need to make syn_buf the current buffer for a moment, to be able to
-     * use find_start_comment(). */
-    curwin_save = curwin;
-    curwin = wp;
-    curbuf_save = curbuf;
-    curbuf = syn_buf;
-
-    /*
-     * Skip lines that end in a backslash.
-     */
-    for (; start_lnum > 1; --start_lnum) {
-      line = ml_get(start_lnum - 1);
-      if (*line == NUL || *(line + STRLEN(line) - 1) != '\\')
-        break;
-    }
-    current_lnum = start_lnum;
-
-    /* set cursor to start of search */
-    cursor_save = wp->w_cursor;
-    wp->w_cursor.lnum = start_lnum;
-    wp->w_cursor.col = 0;
-
-    /*
-     * If the line is inside a comment, need to find the syntax item that
-     * defines the comment.
-     * Restrict the search for the end of a comment to b_syn_sync_maxlines.
-     */
-    if (find_start_comment((int)syn_block->b_syn_sync_maxlines) != NULL) {
-      for (idx = syn_block->b_syn_patterns.ga_len; --idx >= 0; )
-        if (SYN_ITEMS(syn_block)[idx].sp_syn.id
-            == syn_block->b_syn_sync_id
-            && SYN_ITEMS(syn_block)[idx].sp_type == SPTYPE_START) {
-          validate_current_state();
-          push_current_state(idx);
-          update_si_attr(current_state.ga_len - 1);
-          break;
-        }
-    }
-
-    /* restore cursor and buffer */
-    wp->w_cursor = cursor_save;
-    curwin = curwin_save;
-    curbuf = curbuf_save;
-  }
-  /*
-   * 2. Search backwards for given sync patterns.
-   */
-  else if (syn_block->b_syn_sync_flags & SF_MATCH) {
-    if (syn_block->b_syn_sync_maxlines != 0
-        && start_lnum > syn_block->b_syn_sync_maxlines)
-      break_lnum = start_lnum - syn_block->b_syn_sync_maxlines;
-    else
-      break_lnum = 0;
-
-    found_m_endpos.lnum = 0;
-    found_m_endpos.col = 0;
-    end_lnum = start_lnum;
-    lnum = start_lnum;
-    while (--lnum > break_lnum) {
-      /* This can take a long time: break when CTRL-C pressed. */
-      line_breakcheck();
-      if (got_int) {
-        invalidate_current_state();
-        current_lnum = start_lnum;
-        break;
-      }
-
-      /* Check if we have run into a valid saved state stack now. */
-      if (last_valid != NULL && lnum == last_valid->sst_lnum) {
-        load_current_state(last_valid);
-        break;
-      }
-
-      /*
-       * Check if the previous line has the line-continuation pattern.
-       */
-      if (lnum > 1 && syn_match_linecont(lnum - 1))
-        continue;
-
-      /*
-       * Start with nothing on the state stack
-       */
-      validate_current_state();
-
-      for (current_lnum = lnum; current_lnum < end_lnum; ++current_lnum) {
-        syn_start_line();
-        for (;; ) {
-          had_sync_point = syn_finish_line(TRUE);
-          /*
-           * When a sync point has been found, remember where, and
-           * continue to look for another one, further on in the line.
-           */
-          if (had_sync_point && current_state.ga_len) {
-            cur_si = &CUR_STATE(current_state.ga_len - 1);
-            if (cur_si->si_m_endpos.lnum > start_lnum) {
-              /* ignore match that goes to after where started */
-              current_lnum = end_lnum;
-              break;
-            }
-            if (cur_si->si_idx < 0) {
-              /* Cannot happen? */
-              found_flags = 0;
-              found_match_idx = KEYWORD_IDX;
-            } else {
-              spp = &(SYN_ITEMS(syn_block)[cur_si->si_idx]);
-              found_flags = spp->sp_flags;
-              found_match_idx = spp->sp_sync_idx;
-            }
-            found_current_lnum = current_lnum;
-            found_current_col = current_col;
-            found_m_endpos = cur_si->si_m_endpos;
-            /*
-             * Continue after the match (be aware of a zero-length
-             * match).
-             */
-            if (found_m_endpos.lnum > current_lnum) {
-              current_lnum = found_m_endpos.lnum;
-              current_col = found_m_endpos.col;
-              if (current_lnum >= end_lnum)
-                break;
-            } else if (found_m_endpos.col > current_col)
-              current_col = found_m_endpos.col;
-            else
-              ++current_col;
-
-            /* syn_current_attr() will have skipped the check for
-             * an item that ends here, need to do that now.  Be
-             * careful not to go past the NUL. */
-            prev_current_col = current_col;
-            if (syn_getcurline()[current_col] != NUL)
-              ++current_col;
-            check_state_ends();
-            current_col = prev_current_col;
-          } else
-            break;
-        }
-      }
-
-      /*
-       * If a sync point was encountered, break here.
-       */
-      if (found_flags) {
-        /*
-         * Put the item that was specified by the sync point on the
-         * state stack.  If there was no item specified, make the
-         * state stack empty.
-         */
-        clear_current_state();
-        if (found_match_idx >= 0) {
-          push_current_state(found_match_idx);
-          update_si_attr(current_state.ga_len - 1);
-        }
-
-        /*
-         * When using "grouphere", continue from the sync point
-         * match, until the end of the line.  Parsing starts at
-         * the next line.
-         * For "groupthere" the parsing starts at start_lnum.
-         */
-        if (found_flags & HL_SYNC_HERE) {
-          if (current_state.ga_len) {
-            cur_si = &CUR_STATE(current_state.ga_len - 1);
-            cur_si->si_h_startpos.lnum = found_current_lnum;
-            cur_si->si_h_startpos.col = found_current_col;
-            update_si_end(cur_si, (int)current_col, TRUE);
-            check_keepend();
-          }
-          current_col = found_m_endpos.col;
-          current_lnum = found_m_endpos.lnum;
-          (void)syn_finish_line(FALSE);
-          ++current_lnum;
-        } else
-          current_lnum = start_lnum;
-
-        break;
-      }
-
-      end_lnum = lnum;
-      invalidate_current_state();
-    }
-
-    /* Ran into start of the file or exceeded maximum number of lines */
-    if (lnum <= break_lnum) {
-      invalidate_current_state();
-      current_lnum = break_lnum + 1;
-    }
-  }
-
-  validate_current_state();
-}
-
-/*
- * Return TRUE if the line-continuation pattern matches in line "lnum".
- */
-static int syn_match_linecont(linenr_T lnum)
-{
-  regmmatch_T regmatch;
-
-  if (syn_block->b_syn_linecont_prog != NULL) {
-    regmatch.rmm_ic = syn_block->b_syn_linecont_ic;
-    regmatch.regprog = syn_block->b_syn_linecont_prog;
-    return syn_regexec(&regmatch, lnum, (colnr_T)0,
-        IF_SYN_TIME(&syn_block->b_syn_linecont_time));
-  }
-  return FALSE;
-}
-
-/*
- * Prepare the current state for the start of a line.
- */
-static void syn_start_line(void)
-{
-  current_finished = FALSE;
-  current_col = 0;
-
-  /*
-   * Need to update the end of a start/skip/end that continues from the
-   * previous line and regions that have "keepend".
-   */
-  if (current_state.ga_len > 0) {
-    syn_update_ends(TRUE);
-    check_state_ends();
-  }
-
-  next_match_idx = -1;
-  ++current_line_id;
-}
-
-/*
- * Check for items in the stack that need their end updated.
- * When "startofline" is TRUE the last item is always updated.
- * When "startofline" is FALSE the item with "keepend" is forcefully updated.
- */
-static void syn_update_ends(int startofline)
-{
-  stateitem_T *cur_si;
-  int i;
-  int seen_keepend;
-
-  if (startofline) {
-    /* Check for a match carried over from a previous line with a
-     * contained region.  The match ends as soon as the region ends. */
-    for (i = 0; i < current_state.ga_len; ++i) {
-      cur_si = &CUR_STATE(i);
-      if (cur_si->si_idx >= 0
-          && (SYN_ITEMS(syn_block)[cur_si->si_idx]).sp_type
-          == SPTYPE_MATCH
-          && cur_si->si_m_endpos.lnum < current_lnum) {
-        cur_si->si_flags |= HL_MATCHCONT;
-        cur_si->si_m_endpos.lnum = 0;
-        cur_si->si_m_endpos.col = 0;
-        cur_si->si_h_endpos = cur_si->si_m_endpos;
-        cur_si->si_ends = TRUE;
-      }
-    }
-  }
-
-  /*
-   * Need to update the end of a start/skip/end that continues from the
-   * previous line.  And regions that have "keepend", because they may
-   * influence contained items.  If we've just removed "extend"
-   * (startofline == 0) then we should update ends of normal regions
-   * contained inside "keepend" because "extend" could have extended
-   * these "keepend" regions as well as contained normal regions.
-   * Then check for items ending in column 0.
-   */
-  i = current_state.ga_len - 1;
-  if (keepend_level >= 0)
-    for (; i > keepend_level; --i)
-      if (CUR_STATE(i).si_flags & HL_EXTEND)
-        break;
-
-  seen_keepend = FALSE;
-  for (; i < current_state.ga_len; ++i) {
-    cur_si = &CUR_STATE(i);
-    if ((cur_si->si_flags & HL_KEEPEND)
-        || (seen_keepend && !startofline)
-        || (i == current_state.ga_len - 1 && startofline)) {
-      cur_si->si_h_startpos.col = 0;            /* start highl. in col 0 */
-      cur_si->si_h_startpos.lnum = current_lnum;
-
-      if (!(cur_si->si_flags & HL_MATCHCONT))
-        update_si_end(cur_si, (int)current_col, !startofline);
-
-      if (!startofline && (cur_si->si_flags & HL_KEEPEND))
-        seen_keepend = TRUE;
-    }
-  }
-  check_keepend();
-}
-
-/****************************************
- * Handling of the state stack cache.
- */
-
-/*
- * EXPLANATION OF THE SYNTAX STATE STACK CACHE
- *
- * To speed up syntax highlighting, the state stack for the start of some
- * lines is cached.  These entries can be used to start parsing at that point.
- *
- * The stack is kept in b_sst_array[] for each buffer.  There is a list of
- * valid entries.  b_sst_first points to the first one, then follow sst_next.
- * The entries are sorted on line number.  The first entry is often for line 2
- * (line 1 always starts with an empty stack).
- * There is also a list for free entries.  This construction is used to avoid
- * having to allocate and free memory blocks too often.
- *
- * When making changes to the buffer, this is logged in b_mod_*.  When calling
- * update_screen() to update the display, it will call
- * syn_stack_apply_changes() for each displayed buffer to adjust the cached
- * entries.  The entries which are inside the changed area are removed,
- * because they must be recomputed.  Entries below the changed have their line
- * number adjusted for deleted/inserted lines, and have their sst_change_lnum
- * set to indicate that a check must be made if the changed lines would change
- * the cached entry.
- *
- * When later displaying lines, an entry is stored for each line.  Displayed
- * lines are likely to be displayed again, in which case the state at the
- * start of the line is needed.
- * For not displayed lines, an entry is stored for every so many lines.  These
- * entries will be used e.g., when scrolling backwards.  The distance between
- * entries depends on the number of lines in the buffer.  For small buffers
- * the distance is fixed at SST_DIST, for large buffers there is a fixed
- * number of entries SST_MAX_ENTRIES, and the distance is computed.
- */
-
-static void syn_stack_free_block(synblock_T *block)
-{
-  synstate_T  *p;
-
-  if (block->b_sst_array != NULL) {
-    for (p = block->b_sst_first; p != NULL; p = p->sst_next)
-      clear_syn_state(p);
-    free(block->b_sst_array);
-    block->b_sst_array = NULL;
-    block->b_sst_len = 0;
-  }
-}
-/*
- * Free b_sst_array[] for buffer "buf".
- * Used when syntax items changed to force resyncing everywhere.
- */
-void syn_stack_free_all(synblock_T *block)
-{
-  win_T       *wp;
-
-  syn_stack_free_block(block);
-
-
-  /* When using "syntax" fold method, must update all folds. */
-  FOR_ALL_WINDOWS(wp)
-  {
-    if (wp->w_s == block && foldmethodIsSyntax(wp))
-      foldUpdateAll(wp);
-  }
-}
-
-/*
- * Allocate the syntax state stack for syn_buf when needed.
- * If the number of entries in b_sst_array[] is much too big or a bit too
- * small, reallocate it.
- * Also used to allocate b_sst_array[] for the first time.
- */
-static void syn_stack_alloc(void)
-{
-  long len;
-  synstate_T  *to, *from;
-  synstate_T  *sstp;
-
-  len = syn_buf->b_ml.ml_line_count / SST_DIST + Rows * 2;
-  if (len < SST_MIN_ENTRIES)
-    len = SST_MIN_ENTRIES;
-  else if (len > SST_MAX_ENTRIES)
-    len = SST_MAX_ENTRIES;
-  if (syn_block->b_sst_len > len * 2 || syn_block->b_sst_len < len) {
-    /* Allocate 50% too much, to avoid reallocating too often. */
-    len = syn_buf->b_ml.ml_line_count;
-    len = (len + len / 2) / SST_DIST + Rows * 2;
-    if (len < SST_MIN_ENTRIES)
-      len = SST_MIN_ENTRIES;
-    else if (len > SST_MAX_ENTRIES)
-      len = SST_MAX_ENTRIES;
-
-    if (syn_block->b_sst_array != NULL) {
-      /* When shrinking the array, cleanup the existing stack.
-       * Make sure that all valid entries fit in the new array. */
-      while (syn_block->b_sst_len - syn_block->b_sst_freecount + 2 > len
-             && syn_stack_cleanup())
-        ;
-      if (len < syn_block->b_sst_len - syn_block->b_sst_freecount + 2)
-        len = syn_block->b_sst_len - syn_block->b_sst_freecount + 2;
-    }
-
-    assert(len >= 0);
-    sstp = xcalloc(len, sizeof(synstate_T));
-
-    to = sstp - 1;
-    if (syn_block->b_sst_array != NULL) {
-      /* Move the states from the old array to the new one. */
-      for (from = syn_block->b_sst_first; from != NULL;
-           from = from->sst_next) {
-        ++to;
-        *to = *from;
-        to->sst_next = to + 1;
-      }
-    }
-    if (to != sstp - 1) {
-      to->sst_next = NULL;
-      syn_block->b_sst_first = sstp;
-      syn_block->b_sst_freecount = len - (int)(to - sstp) - 1;
-    } else {
-      syn_block->b_sst_first = NULL;
-      syn_block->b_sst_freecount = len;
-    }
-
-    /* Create the list of free entries. */
-    syn_block->b_sst_firstfree = to + 1;
-    while (++to < sstp + len)
-      to->sst_next = to + 1;
-    (sstp + len - 1)->sst_next = NULL;
-
-    free(syn_block->b_sst_array);
-    syn_block->b_sst_array = sstp;
-    syn_block->b_sst_len = len;
-  }
-}
-
-/*
- * Check for changes in a buffer to affect stored syntax states.  Uses the
- * b_mod_* fields.
- * Called from update_screen(), before screen is being updated, once for each
- * displayed buffer.
- */
-void syn_stack_apply_changes(buf_T *buf)
-{
-  win_T       *wp;
-
-  syn_stack_apply_changes_block(&buf->b_s, buf);
-
-  FOR_ALL_WINDOWS(wp)
-  {
-    if ((wp->w_buffer == buf) && (wp->w_s != &buf->b_s))
-      syn_stack_apply_changes_block(wp->w_s, buf);
-  }
-}
-
-static void syn_stack_apply_changes_block(synblock_T *block, buf_T *buf)
-{
-  synstate_T  *p, *prev, *np;
-  linenr_T n;
-
-  if (block->b_sst_array == NULL)       /* nothing to do */
-    return;
-
-  prev = NULL;
-  for (p = block->b_sst_first; p != NULL; ) {
-    if (p->sst_lnum + block->b_syn_sync_linebreaks > buf->b_mod_top) {
-      n = p->sst_lnum + buf->b_mod_xlines;
-      if (n <= buf->b_mod_bot) {
-        /* this state is inside the changed area, remove it */
-        np = p->sst_next;
-        if (prev == NULL)
-          block->b_sst_first = np;
-        else
-          prev->sst_next = np;
-        syn_stack_free_entry(block, p);
-        p = np;
-        continue;
-      }
-      /* This state is below the changed area.  Remember the line
-       * that needs to be parsed before this entry can be made valid
-       * again. */
-      if (p->sst_change_lnum != 0 && p->sst_change_lnum > buf->b_mod_top) {
-        if (p->sst_change_lnum + buf->b_mod_xlines > buf->b_mod_top)
-          p->sst_change_lnum += buf->b_mod_xlines;
-        else
-          p->sst_change_lnum = buf->b_mod_top;
-      }
-      if (p->sst_change_lnum == 0
-          || p->sst_change_lnum < buf->b_mod_bot)
-        p->sst_change_lnum = buf->b_mod_bot;
-
-      p->sst_lnum = n;
-    }
-    prev = p;
-    p = p->sst_next;
-  }
-}
-
-/*
- * Reduce the number of entries in the state stack for syn_buf.
- * Returns TRUE if at least one entry was freed.
- */
-static int syn_stack_cleanup(void)
-{
-  synstate_T  *p, *prev;
-  disptick_T tick;
-  int above;
-  int dist;
-  int retval = FALSE;
-
-  if (syn_block->b_sst_array == NULL || syn_block->b_sst_first == NULL)
-    return retval;
-
-  /* Compute normal distance between non-displayed entries. */
-  if (syn_block->b_sst_len <= Rows)
-    dist = 999999;
-  else
-    dist = syn_buf->b_ml.ml_line_count / (syn_block->b_sst_len - Rows) + 1;
-
-  /*
-   * Go through the list to find the "tick" for the oldest entry that can
-   * be removed.  Set "above" when the "tick" for the oldest entry is above
-   * "b_sst_lasttick" (the display tick wraps around).
-   */
-  tick = syn_block->b_sst_lasttick;
-  above = FALSE;
-  prev = syn_block->b_sst_first;
-  for (p = prev->sst_next; p != NULL; prev = p, p = p->sst_next) {
-    if (prev->sst_lnum + dist > p->sst_lnum) {
-      if (p->sst_tick > syn_block->b_sst_lasttick) {
-        if (!above || p->sst_tick < tick)
-          tick = p->sst_tick;
-        above = TRUE;
-      } else if (!above && p->sst_tick < tick)
-        tick = p->sst_tick;
-    }
-  }
-
-  /*
-   * Go through the list to make the entries for the oldest tick at an
-   * interval of several lines.
-   */
-  prev = syn_block->b_sst_first;
-  for (p = prev->sst_next; p != NULL; prev = p, p = p->sst_next) {
-    if (p->sst_tick == tick && prev->sst_lnum + dist > p->sst_lnum) {
-      /* Move this entry from used list to free list */
-      prev->sst_next = p->sst_next;
-      syn_stack_free_entry(syn_block, p);
-      p = prev;
-      retval = TRUE;
-    }
-  }
-  return retval;
-}
-
-/*
- * Free the allocated memory for a syn_state item.
- * Move the entry into the free list.
- */
-static void syn_stack_free_entry(synblock_T *block, synstate_T *p)
-{
-  clear_syn_state(p);
-  p->sst_next = block->b_sst_firstfree;
-  block->b_sst_firstfree = p;
-  ++block->b_sst_freecount;
-}
-
-/*
- * Find an entry in the list of state stacks at or before "lnum".
- * Returns NULL when there is no entry or the first entry is after "lnum".
- */
-static synstate_T *syn_stack_find_entry(linenr_T lnum)
-{
-  synstate_T  *p, *prev;
-
-  prev = NULL;
-  for (p = syn_block->b_sst_first; p != NULL; prev = p, p = p->sst_next) {
-    if (p->sst_lnum == lnum)
-      return p;
-    if (p->sst_lnum > lnum)
-      break;
-  }
-  return prev;
-}
-
-/*
- * Try saving the current state in b_sst_array[].
- * The current state must be valid for the start of the current_lnum line!
- */
-static synstate_T *store_current_state(void)
-{
-  int i;
-  synstate_T  *p;
-  bufstate_T  *bp;
-  stateitem_T *cur_si;
-  synstate_T  *sp = syn_stack_find_entry(current_lnum);
-
-  /*
-   * If the current state contains a start or end pattern that continues
-   * from the previous line, we can't use it.  Don't store it then.
-   */
-  for (i = current_state.ga_len - 1; i >= 0; --i) {
-    cur_si = &CUR_STATE(i);
-    if (cur_si->si_h_startpos.lnum >= current_lnum
-        || cur_si->si_m_endpos.lnum >= current_lnum
-        || cur_si->si_h_endpos.lnum >= current_lnum
-        || (cur_si->si_end_idx
-            && cur_si->si_eoe_pos.lnum >= current_lnum))
-      break;
-  }
-  if (i >= 0) {
-    if (sp != NULL) {
-      /* find "sp" in the list and remove it */
-      if (syn_block->b_sst_first == sp)
-        /* it's the first entry */
-        syn_block->b_sst_first = sp->sst_next;
-      else {
-        /* find the entry just before this one to adjust sst_next */
-        for (p = syn_block->b_sst_first; p != NULL; p = p->sst_next)
-          if (p->sst_next == sp)
-            break;
-        if (p != NULL)          /* just in case */
-          p->sst_next = sp->sst_next;
-      }
-      syn_stack_free_entry(syn_block, sp);
-      sp = NULL;
-    }
-  } else if (sp == NULL || sp->sst_lnum != current_lnum)   {
-    /*
-     * Add a new entry
-     */
-    /* If no free items, cleanup the array first. */
-    if (syn_block->b_sst_freecount == 0) {
-      (void)syn_stack_cleanup();
-      /* "sp" may have been moved to the freelist now */
-      sp = syn_stack_find_entry(current_lnum);
-    }
-    /* Still no free items?  Must be a strange problem... */
-    if (syn_block->b_sst_freecount == 0)
-      sp = NULL;
-    else {
-      /* Take the first item from the free list and put it in the used
-       * list, after *sp */
-      p = syn_block->b_sst_firstfree;
-      syn_block->b_sst_firstfree = p->sst_next;
-      --syn_block->b_sst_freecount;
-      if (sp == NULL) {
-        /* Insert in front of the list */
-        p->sst_next = syn_block->b_sst_first;
-        syn_block->b_sst_first = p;
-      } else {
-        /* insert in list after *sp */
-        p->sst_next = sp->sst_next;
-        sp->sst_next = p;
-      }
-      sp = p;
-      sp->sst_stacksize = 0;
-      sp->sst_lnum = current_lnum;
-    }
-  }
-  if (sp != NULL) {
-    /* When overwriting an existing state stack, clear it first */
-    clear_syn_state(sp);
-    sp->sst_stacksize = current_state.ga_len;
-    if (current_state.ga_len > SST_FIX_STATES) {
-      /* Need to clear it, might be something remaining from when the
-       * length was less than SST_FIX_STATES. */
-      ga_init(&sp->sst_union.sst_ga, (int)sizeof(bufstate_T), 1);
-      ga_grow(&sp->sst_union.sst_ga, current_state.ga_len);
-      sp->sst_union.sst_ga.ga_len = current_state.ga_len;
-      bp = SYN_STATE_P(&(sp->sst_union.sst_ga));
-    } else
-      bp = sp->sst_union.sst_stack;
-    for (i = 0; i < sp->sst_stacksize; ++i) {
-      bp[i].bs_idx = CUR_STATE(i).si_idx;
-      bp[i].bs_flags = CUR_STATE(i).si_flags;
-      bp[i].bs_seqnr = CUR_STATE(i).si_seqnr;
-      bp[i].bs_cchar = CUR_STATE(i).si_cchar;
-      bp[i].bs_extmatch = ref_extmatch(CUR_STATE(i).si_extmatch);
-    }
-    sp->sst_next_flags = current_next_flags;
-    sp->sst_next_list = current_next_list;
-    sp->sst_tick = display_tick;
-    sp->sst_change_lnum = 0;
-  }
-  current_state_stored = TRUE;
-  return sp;
-}
-
-/*
- * Copy a state stack from "from" in b_sst_array[] to current_state;
- */
-static void load_current_state(synstate_T *from)
-{
-  int i;
-  bufstate_T  *bp;
-
-  clear_current_state();
-  validate_current_state();
-  keepend_level = -1;
-  if (from->sst_stacksize) {
-    ga_grow(&current_state, from->sst_stacksize);
-    if (from->sst_stacksize > SST_FIX_STATES)
-      bp = SYN_STATE_P(&(from->sst_union.sst_ga));
-    else
-      bp = from->sst_union.sst_stack;
-    for (i = 0; i < from->sst_stacksize; ++i) {
-      CUR_STATE(i).si_idx = bp[i].bs_idx;
-      CUR_STATE(i).si_flags = bp[i].bs_flags;
-      CUR_STATE(i).si_seqnr = bp[i].bs_seqnr;
-      CUR_STATE(i).si_cchar = bp[i].bs_cchar;
-      CUR_STATE(i).si_extmatch = ref_extmatch(bp[i].bs_extmatch);
-      if (keepend_level < 0 && (CUR_STATE(i).si_flags & HL_KEEPEND))
-        keepend_level = i;
-      CUR_STATE(i).si_ends = FALSE;
-      CUR_STATE(i).si_m_lnum = 0;
-      if (CUR_STATE(i).si_idx >= 0)
-        CUR_STATE(i).si_next_list =
-          (SYN_ITEMS(syn_block)[CUR_STATE(i).si_idx]).sp_next_list;
-      else
-        CUR_STATE(i).si_next_list = NULL;
-      update_si_attr(i);
-    }
-    current_state.ga_len = from->sst_stacksize;
-  }
-  current_next_list = from->sst_next_list;
-  current_next_flags = from->sst_next_flags;
-  current_lnum = from->sst_lnum;
-}
-
-/*
- * Compare saved state stack "*sp" with the current state.
- * Return TRUE when they are equal.
- */
-static int syn_stack_equal(synstate_T *sp)
-{
-  int i, j;
-  bufstate_T  *bp;
-  reg_extmatch_T      *six, *bsx;
-
-  /* First a quick check if the stacks have the same size end nextlist. */
-  if (sp->sst_stacksize == current_state.ga_len
-      && sp->sst_next_list == current_next_list) {
-    /* Need to compare all states on both stacks. */
-    if (sp->sst_stacksize > SST_FIX_STATES)
-      bp = SYN_STATE_P(&(sp->sst_union.sst_ga));
-    else
-      bp = sp->sst_union.sst_stack;
-
-    for (i = current_state.ga_len; --i >= 0; ) {
-      /* If the item has another index the state is different. */
-      if (bp[i].bs_idx != CUR_STATE(i).si_idx)
-        break;
-      if (bp[i].bs_extmatch != CUR_STATE(i).si_extmatch) {
-        /* When the extmatch pointers are different, the strings in
-         * them can still be the same.  Check if the extmatch
-         * references are equal. */
-        bsx = bp[i].bs_extmatch;
-        six = CUR_STATE(i).si_extmatch;
-        /* If one of the extmatch pointers is NULL the states are
-         * different. */
-        if (bsx == NULL || six == NULL)
-          break;
-        for (j = 0; j < NSUBEXP; ++j) {
-          /* Check each referenced match string. They must all be
-           * equal. */
-          if (bsx->matches[j] != six->matches[j]) {
-            /* If the pointer is different it can still be the
-             * same text.  Compare the strings, ignore case when
-             * the start item has the sp_ic flag set. */
-            if (bsx->matches[j] == NULL
-                || six->matches[j] == NULL)
-              break;
-            if ((SYN_ITEMS(syn_block)[CUR_STATE(i).si_idx]).sp_ic
-                ? MB_STRICMP(bsx->matches[j],
-                    six->matches[j]) != 0
-                : STRCMP(bsx->matches[j], six->matches[j]) != 0)
-              break;
-          }
-        }
-        if (j != NSUBEXP)
-          break;
-      }
-    }
-    if (i < 0)
-      return TRUE;
-  }
-  return FALSE;
-}
-
-/*
- * We stop parsing syntax above line "lnum".  If the stored state at or below
- * this line depended on a change before it, it now depends on the line below
- * the last parsed line.
- * The window looks like this:
- *	    line which changed
- *	    displayed line
- *	    displayed line
- * lnum ->  line below window
- */
-void syntax_end_parsing(linenr_T lnum)
-{
-  synstate_T  *sp;
-
-  sp = syn_stack_find_entry(lnum);
-  if (sp != NULL && sp->sst_lnum < lnum)
-    sp = sp->sst_next;
-
-  if (sp != NULL && sp->sst_change_lnum != 0)
-    sp->sst_change_lnum = lnum;
-}
-
-/*
- * End of handling of the state stack.
- ****************************************/
-
-static void invalidate_current_state(void)
-{
-  clear_current_state();
-  current_state.ga_itemsize = 0;        /* mark current_state invalid */
-  current_next_list = NULL;
-  keepend_level = -1;
-}
-
-static void validate_current_state(void)
-{
-  current_state.ga_itemsize = sizeof(stateitem_T);
-  current_state.ga_growsize = 3;
-}
-
-/*
- * Return TRUE if the syntax at start of lnum changed since last time.
- * This will only be called just after get_syntax_attr() for the previous
- * line, to check if the next line needs to be redrawn too.
- */
-int syntax_check_changed(linenr_T lnum)
-{
-  int retval = TRUE;
-  synstate_T  *sp;
-
-  /*
-   * Check the state stack when:
-   * - lnum is just below the previously syntaxed line.
-   * - lnum is not before the lines with saved states.
-   * - lnum is not past the lines with saved states.
-   * - lnum is at or before the last changed line.
-   */
-  if (VALID_STATE(&current_state) && lnum == current_lnum + 1) {
-    sp = syn_stack_find_entry(lnum);
-    if (sp != NULL && sp->sst_lnum == lnum) {
-      /*
-       * finish the previous line (needed when not all of the line was
-       * drawn)
-       */
-      (void)syn_finish_line(FALSE);
-
-      /*
-       * Compare the current state with the previously saved state of
-       * the line.
-       */
-      if (syn_stack_equal(sp))
-        retval = FALSE;
-
-      /*
-       * Store the current state in b_sst_array[] for later use.
-       */
-      ++current_lnum;
-      (void)store_current_state();
-    }
-  }
-
-  return retval;
-}
-
-/*
- * Finish the current line.
- * This doesn't return any attributes, it only gets the state at the end of
- * the line.  It can start anywhere in the line, as long as the current state
- * is valid.
- */
-static int 
-syn_finish_line (
-    int syncing                    /* called for syncing */
-)
-{
-  stateitem_T *cur_si;
-  colnr_T prev_current_col;
-
-  if (!current_finished) {
-    while (!current_finished) {
-      (void)syn_current_attr(syncing, FALSE, NULL, FALSE);
-      /*
-       * When syncing, and found some item, need to check the item.
-       */
-      if (syncing && current_state.ga_len) {
-        /*
-         * Check for match with sync item.
-         */
-        cur_si = &CUR_STATE(current_state.ga_len - 1);
-        if (cur_si->si_idx >= 0
-            && (SYN_ITEMS(syn_block)[cur_si->si_idx].sp_flags
-                & (HL_SYNC_HERE|HL_SYNC_THERE)))
-          return TRUE;
-
-        /* syn_current_attr() will have skipped the check for an item
-         * that ends here, need to do that now.  Be careful not to go
-         * past the NUL. */
-        prev_current_col = current_col;
-        if (syn_getcurline()[current_col] != NUL)
-          ++current_col;
-        check_state_ends();
-        current_col = prev_current_col;
-      }
-      ++current_col;
-    }
-  }
-  return FALSE;
-}
-
-/*
- * Return highlight attributes for next character.
- * Must first call syntax_start() once for the line.
- * "col" is normally 0 for the first use in a line, and increments by one each
- * time.  It's allowed to skip characters and to stop before the end of the
- * line.  But only a "col" after a previously used column is allowed.
- * When "can_spell" is not NULL set it to TRUE when spell-checking should be
- * done.
- */
-int 
-get_syntax_attr (
-    colnr_T col,
-    int *can_spell,
-    int keep_state                 /* keep state of char at "col" */
-)
-{
-  int attr = 0;
-
-  if (can_spell != NULL)
-    /* Default: Only do spelling when there is no @Spell cluster or when
-     * ":syn spell toplevel" was used. */
-    *can_spell = syn_block->b_syn_spell == SYNSPL_DEFAULT
-                 ? (syn_block->b_spell_cluster_id == 0)
-                 : (syn_block->b_syn_spell == SYNSPL_TOP);
-
-  /* check for out of memory situation */
-  if (syn_block->b_sst_array == NULL)
-    return 0;
-
-  /* After 'synmaxcol' the attribute is always zero. */
-  if (syn_buf->b_p_smc > 0 && col >= (colnr_T)syn_buf->b_p_smc) {
-    clear_current_state();
-    current_id = 0;
-    current_trans_id = 0;
-    current_flags = 0;
-    return 0;
-  }
-
-  /* Make sure current_state is valid */
-  if (INVALID_STATE(&current_state))
-    validate_current_state();
-
-  /*
-   * Skip from the current column to "col", get the attributes for "col".
-   */
-  while (current_col <= col) {
-    attr = syn_current_attr(FALSE, TRUE, can_spell,
-        current_col == col ? keep_state : FALSE);
-    ++current_col;
-  }
-
-  return attr;
-}
-
-/*
- * Get syntax attributes for current_lnum, current_col.
- */
-static int 
-syn_current_attr (
-    int syncing,                            /* When 1: called for syncing */
-    int displaying,                         /* result will be displayed */
-    int *can_spell,                 /* return: do spell checking */
-    int keep_state                         /* keep syntax stack afterwards */
-)
-{
-  int syn_id;
-  lpos_T endpos;                /* was: char_u *endp; */
-  lpos_T hl_startpos;           /* was: int hl_startcol; */
-  lpos_T hl_endpos;
-  lpos_T eos_pos;               /* end-of-start match (start region) */
-  lpos_T eoe_pos;               /* end-of-end pattern */
-  int end_idx;                  /* group ID for end pattern */
-  int idx;
-  synpat_T    *spp;
-  stateitem_T *cur_si, *sip = NULL;
-  int startcol;
-  int endcol;
-  long flags;
-  int cchar;
-  short       *next_list;
-  int found_match;                          /* found usable match */
-  static int try_next_column = FALSE;       /* must try in next col */
-  int do_keywords;
-  regmmatch_T regmatch;
-  lpos_T pos;
-  int lc_col;
-  reg_extmatch_T *cur_extmatch = NULL;
-  char_u      *line;            /* current line.  NOTE: becomes invalid after
-                                   looking for a pattern match! */
-
-  /* variables for zero-width matches that have a "nextgroup" argument */
-  int keep_next_list;
-  int zero_width_next_list = FALSE;
-  garray_T zero_width_next_ga;
-
-  /*
-   * No character, no attributes!  Past end of line?
-   * Do try matching with an empty line (could be the start of a region).
-   */
-  line = syn_getcurline();
-  if (line[current_col] == NUL && current_col != 0) {
-    /*
-     * If we found a match after the last column, use it.
-     */
-    if (next_match_idx >= 0 && next_match_col >= (int)current_col
-        && next_match_col != MAXCOL)
-      (void)push_next_match(NULL);
-
-    current_finished = TRUE;
-    current_state_stored = FALSE;
-    return 0;
-  }
-
-  /* if the current or next character is NUL, we will finish the line now */
-  if (line[current_col] == NUL || line[current_col + 1] == NUL) {
-    current_finished = TRUE;
-    current_state_stored = FALSE;
-  }
-
-  /*
-   * When in the previous column there was a match but it could not be used
-   * (empty match or already matched in this column) need to try again in
-   * the next column.
-   */
-  if (try_next_column) {
-    next_match_idx = -1;
-    try_next_column = FALSE;
-  }
-
-  /* Only check for keywords when not syncing and there are some. */
-  do_keywords = !syncing
-                && (syn_block->b_keywtab.ht_used > 0
-                    || syn_block->b_keywtab_ic.ht_used > 0);
-
-  /* Init the list of zero-width matches with a nextlist.  This is used to
-   * avoid matching the same item in the same position twice. */
-  ga_init(&zero_width_next_ga, (int)sizeof(int), 10);
-
-  /*
-   * Repeat matching keywords and patterns, to find contained items at the
-   * same column.  This stops when there are no extra matches at the current
-   * column.
-   */
-  do {
-    found_match = FALSE;
-    keep_next_list = FALSE;
-    syn_id = 0;
-
-    /*
-     * 1. Check for a current state.
-     *    Only when there is no current state, or if the current state may
-     *    contain other things, we need to check for keywords and patterns.
-     *    Always need to check for contained items if some item has the
-     *    "containedin" argument (takes extra time!).
-     */
-    if (current_state.ga_len)
-      cur_si = &CUR_STATE(current_state.ga_len - 1);
-    else
-      cur_si = NULL;
-
-    if (syn_block->b_syn_containedin || cur_si == NULL
-        || cur_si->si_cont_list != NULL) {
-      /*
-       * 2. Check for keywords, if on a keyword char after a non-keyword
-       *	  char.  Don't do this when syncing.
-       */
-      if (do_keywords) {
-        line = syn_getcurline();
-        if (vim_iswordp_buf(line + current_col, syn_buf)
-            && (current_col == 0
-                || !vim_iswordp_buf(line + current_col - 1
-                    - (has_mbyte
-                       ? (*mb_head_off)(line, line + current_col - 1)
-                       : 0)
-                    , syn_buf))) {
-          syn_id = check_keyword_id(line, (int)current_col,
-              &endcol, &flags, &next_list, cur_si,
-              &cchar);
-          if (syn_id != 0) {
-            push_current_state(KEYWORD_IDX);
-            {
-              cur_si = &CUR_STATE(current_state.ga_len - 1);
-              cur_si->si_m_startcol = current_col;
-              cur_si->si_h_startpos.lnum = current_lnum;
-              cur_si->si_h_startpos.col = 0;            /* starts right away */
-              cur_si->si_m_endpos.lnum = current_lnum;
-              cur_si->si_m_endpos.col = endcol;
-              cur_si->si_h_endpos.lnum = current_lnum;
-              cur_si->si_h_endpos.col = endcol;
-              cur_si->si_ends = TRUE;
-              cur_si->si_end_idx = 0;
-              cur_si->si_flags = flags;
-              cur_si->si_seqnr = next_seqnr++;
-              cur_si->si_cchar = cchar;
-              if (current_state.ga_len > 1)
-                cur_si->si_flags |=
-                  CUR_STATE(current_state.ga_len - 2).si_flags
-                  & HL_CONCEAL;
-              cur_si->si_id = syn_id;
-              cur_si->si_trans_id = syn_id;
-              if (flags & HL_TRANSP) {
-                if (current_state.ga_len < 2) {
-                  cur_si->si_attr = 0;
-                  cur_si->si_trans_id = 0;
-                } else {
-                  cur_si->si_attr = CUR_STATE(
-                      current_state.ga_len - 2).si_attr;
-                  cur_si->si_trans_id = CUR_STATE(
-                      current_state.ga_len - 2).si_trans_id;
-                }
-              } else
-                cur_si->si_attr = syn_id2attr(syn_id);
-              cur_si->si_cont_list = NULL;
-              cur_si->si_next_list = next_list;
-              check_keepend();
-            }
-          }
-        }
-      }
-
-      /*
-       * 3. Check for patterns (only if no keyword found).
-       */
-      if (syn_id == 0 && syn_block->b_syn_patterns.ga_len) {
-        /*
-         * If we didn't check for a match yet, or we are past it, check
-         * for any match with a pattern.
-         */
-        if (next_match_idx < 0 || next_match_col < (int)current_col) {
-          /*
-           * Check all relevant patterns for a match at this
-           * position.  This is complicated, because matching with a
-           * pattern takes quite a bit of time, thus we want to
-           * avoid doing it when it's not needed.
-           */
-          next_match_idx = 0;                   /* no match in this line yet */
-          next_match_col = MAXCOL;
-          for (idx = syn_block->b_syn_patterns.ga_len; --idx >= 0; ) {
-            spp = &(SYN_ITEMS(syn_block)[idx]);
-            if (       spp->sp_syncing == syncing
-                       && (displaying || !(spp->sp_flags & HL_DISPLAY))
-                       && (spp->sp_type == SPTYPE_MATCH
-                           || spp->sp_type == SPTYPE_START)
-                       && (current_next_list != NULL
-                           ? in_id_list(NULL, current_next_list,
-                               &spp->sp_syn, 0)
-                           : (cur_si == NULL
-                              ? !(spp->sp_flags & HL_CONTAINED)
-                              : in_id_list(cur_si,
-                                  cur_si->si_cont_list, &spp->sp_syn,
-                                  spp->sp_flags & HL_CONTAINED)))) {
-              /* If we already tried matching in this line, and
-               * there isn't a match before next_match_col, skip
-               * this item. */
-              if (spp->sp_line_id == current_line_id
-                  && spp->sp_startcol >= next_match_col)
-                continue;
-              spp->sp_line_id = current_line_id;
-
-              lc_col = current_col - spp->sp_offsets[SPO_LC_OFF];
-              if (lc_col < 0)
-                lc_col = 0;
-
-              regmatch.rmm_ic = spp->sp_ic;
-              regmatch.regprog = spp->sp_prog;
-              if (!syn_regexec(&regmatch,
-                      current_lnum,
-                      (colnr_T)lc_col,
-                      IF_SYN_TIME(&spp->sp_time))) {
-                /* no match in this line, try another one */
-                spp->sp_startcol = MAXCOL;
-                continue;
-              }
-
-              /*
-               * Compute the first column of the match.
-               */
-              syn_add_start_off(&pos, &regmatch,
-                  spp, SPO_MS_OFF, -1);
-              if (pos.lnum > current_lnum) {
-                /* must have used end of match in a next line,
-                 * we can't handle that */
-                spp->sp_startcol = MAXCOL;
-                continue;
-              }
-              startcol = pos.col;
-
-              /* remember the next column where this pattern
-               * matches in the current line */
-              spp->sp_startcol = startcol;
-
-              /*
-               * If a previously found match starts at a lower
-               * column number, don't use this one.
-               */
-              if (startcol >= next_match_col)
-                continue;
-
-              /*
-               * If we matched this pattern at this position
-               * before, skip it.  Must retry in the next
-               * column, because it may match from there.
-               */
-              if (did_match_already(idx, &zero_width_next_ga)) {
-                try_next_column = TRUE;
-                continue;
-              }
-
-              endpos.lnum = regmatch.endpos[0].lnum;
-              endpos.col = regmatch.endpos[0].col;
-
-              /* Compute the highlight start. */
-              syn_add_start_off(&hl_startpos, &regmatch,
-                  spp, SPO_HS_OFF, -1);
-
-              /* Compute the region start. */
-              /* Default is to use the end of the match. */
-              syn_add_end_off(&eos_pos, &regmatch,
-                  spp, SPO_RS_OFF, 0);
-
-              /*
-               * Grab the external submatches before they get
-               * overwritten.  Reference count doesn't change.
-               */
-              unref_extmatch(cur_extmatch);
-              cur_extmatch = re_extmatch_out;
-              re_extmatch_out = NULL;
-
-              flags = 0;
-              eoe_pos.lnum = 0;                 /* avoid warning */
-              eoe_pos.col = 0;
-              end_idx = 0;
-              hl_endpos.lnum = 0;
-
-              /*
-               * For a "oneline" the end must be found in the
-               * same line too.  Search for it after the end of
-               * the match with the start pattern.  Set the
-               * resulting end positions at the same time.
-               */
-              if (spp->sp_type == SPTYPE_START
-                  && (spp->sp_flags & HL_ONELINE)) {
-                lpos_T startpos;
-
-                startpos = endpos;
-                find_endpos(idx, &startpos, &endpos, &hl_endpos,
-                    &flags, &eoe_pos, &end_idx, cur_extmatch);
-                if (endpos.lnum == 0)
-                  continue;                         /* not found */
-              }
-              /*
-               * For a "match" the size must be > 0 after the
-               * end offset needs has been added.  Except when
-               * syncing.
-               */
-              else if (spp->sp_type == SPTYPE_MATCH) {
-                syn_add_end_off(&hl_endpos, &regmatch, spp,
-                    SPO_HE_OFF, 0);
-                syn_add_end_off(&endpos, &regmatch, spp,
-                    SPO_ME_OFF, 0);
-                if (endpos.lnum == current_lnum
-                    && (int)endpos.col + syncing < startcol) {
-                  /*
-                   * If an empty string is matched, may need
-                   * to try matching again at next column.
-                   */
-                  if (regmatch.startpos[0].col
-                      == regmatch.endpos[0].col)
-                    try_next_column = TRUE;
-                  continue;
-                }
-              }
-
-              /*
-               * keep the best match so far in next_match_*
-               */
-              /* Highlighting must start after startpos and end
-               * before endpos. */
-              if (hl_startpos.lnum == current_lnum
-                  && (int)hl_startpos.col < startcol)
-                hl_startpos.col = startcol;
-              limit_pos_zero(&hl_endpos, &endpos);
-
-              next_match_idx = idx;
-              next_match_col = startcol;
-              next_match_m_endpos = endpos;
-              next_match_h_endpos = hl_endpos;
-              next_match_h_startpos = hl_startpos;
-              next_match_flags = flags;
-              next_match_eos_pos = eos_pos;
-              next_match_eoe_pos = eoe_pos;
-              next_match_end_idx = end_idx;
-              unref_extmatch(next_match_extmatch);
-              next_match_extmatch = cur_extmatch;
-              cur_extmatch = NULL;
-            }
-          }
-        }
-
-        /*
-         * If we found a match at the current column, use it.
-         */
-        if (next_match_idx >= 0 && next_match_col == (int)current_col) {
-          synpat_T    *lspp;
-
-          /* When a zero-width item matched which has a nextgroup,
-           * don't push the item but set nextgroup. */
-          lspp = &(SYN_ITEMS(syn_block)[next_match_idx]);
-          if (next_match_m_endpos.lnum == current_lnum
-              && next_match_m_endpos.col == current_col
-              && lspp->sp_next_list != NULL) {
-            current_next_list = lspp->sp_next_list;
-            current_next_flags = lspp->sp_flags;
-            keep_next_list = TRUE;
-            zero_width_next_list = TRUE;
-
-            /* Add the index to a list, so that we can check
-             * later that we don't match it again (and cause an
-             * endless loop). */
-            ga_grow(&zero_width_next_ga, 1);
-            ((int *)(zero_width_next_ga.ga_data))
-            [zero_width_next_ga.ga_len++] = next_match_idx;
-            next_match_idx = -1;
-          } else
-            cur_si = push_next_match(cur_si);
-          found_match = TRUE;
-        }
-      }
-    }
-
-    /*
-     * Handle searching for nextgroup match.
-     */
-    if (current_next_list != NULL && !keep_next_list) {
-      /*
-       * If a nextgroup was not found, continue looking for one if:
-       * - this is an empty line and the "skipempty" option was given
-       * - we are on white space and the "skipwhite" option was given
-       */
-      if (!found_match) {
-        line = syn_getcurline();
-        if (((current_next_flags & HL_SKIPWHITE)
-             && vim_iswhite(line[current_col]))
-            || ((current_next_flags & HL_SKIPEMPTY)
-                && *line == NUL))
-          break;
-      }
-
-      /*
-       * If a nextgroup was found: Use it, and continue looking for
-       * contained matches.
-       * If a nextgroup was not found: Continue looking for a normal
-       * match.
-       * When did set current_next_list for a zero-width item and no
-       * match was found don't loop (would get stuck).
-       */
-      current_next_list = NULL;
-      next_match_idx = -1;
-      if (!zero_width_next_list)
-        found_match = TRUE;
-    }
-
-  } while (found_match);
-
-  /*
-   * Use attributes from the current state, if within its highlighting.
-   * If not, use attributes from the current-but-one state, etc.
-   */
-  current_attr = 0;
-  current_id = 0;
-  current_trans_id = 0;
-  current_flags = 0;
-  if (cur_si != NULL) {
-    for (idx = current_state.ga_len - 1; idx >= 0; --idx) {
-      sip = &CUR_STATE(idx);
-      if ((current_lnum > sip->si_h_startpos.lnum
-           || (current_lnum == sip->si_h_startpos.lnum
-               && current_col >= sip->si_h_startpos.col))
-          && (sip->si_h_endpos.lnum == 0
-              || current_lnum < sip->si_h_endpos.lnum
-              || (current_lnum == sip->si_h_endpos.lnum
-                  && current_col < sip->si_h_endpos.col))) {
-        current_attr = sip->si_attr;
-        current_id = sip->si_id;
-        current_trans_id = sip->si_trans_id;
-        current_flags = sip->si_flags;
-        current_seqnr = sip->si_seqnr;
-        current_sub_char = sip->si_cchar;
-        break;
-      }
-    }
-
-    if (can_spell != NULL) {
-      struct sp_syn sps;
-
-      /*
-       * set "can_spell" to TRUE if spell checking is supposed to be
-       * done in the current item.
-       */
-      if (syn_block->b_spell_cluster_id == 0) {
-        /* There is no @Spell cluster: Do spelling for items without
-         * @NoSpell cluster. */
-        if (syn_block->b_nospell_cluster_id == 0
-            || current_trans_id == 0)
-          *can_spell = (syn_block->b_syn_spell != SYNSPL_NOTOP);
-        else {
-          sps.inc_tag = 0;
-          sps.id = syn_block->b_nospell_cluster_id;
-          sps.cont_in_list = NULL;
-          *can_spell = !in_id_list(sip, sip->si_cont_list, &sps, 0);
-        }
-      } else {
-        /* The @Spell cluster is defined: Do spelling in items with
-         * the @Spell cluster.  But not when @NoSpell is also there.
-         * At the toplevel only spell check when ":syn spell toplevel"
-         * was used. */
-        if (current_trans_id == 0)
-          *can_spell = (syn_block->b_syn_spell == SYNSPL_TOP);
-        else {
-          sps.inc_tag = 0;
-          sps.id = syn_block->b_spell_cluster_id;
-          sps.cont_in_list = NULL;
-          *can_spell = in_id_list(sip, sip->si_cont_list, &sps, 0);
-
-          if (syn_block->b_nospell_cluster_id != 0) {
-            sps.id = syn_block->b_nospell_cluster_id;
-            if (in_id_list(sip, sip->si_cont_list, &sps, 0))
-              *can_spell = FALSE;
-          }
-        }
-      }
-    }
-
-
-    /*
-     * Check for end of current state (and the states before it) at the
-     * next column.  Don't do this for syncing, because we would miss a
-     * single character match.
-     * First check if the current state ends at the current column.  It
-     * may be for an empty match and a containing item might end in the
-     * current column.
-     */
-    if (!syncing && !keep_state) {
-      check_state_ends();
-      if (current_state.ga_len > 0
-          && syn_getcurline()[current_col] != NUL) {
-        ++current_col;
-        check_state_ends();
-        --current_col;
-      }
-    }
-  } else if (can_spell != NULL)
-    /* Default: Only do spelling when there is no @Spell cluster or when
-     * ":syn spell toplevel" was used. */
-    *can_spell = syn_block->b_syn_spell == SYNSPL_DEFAULT
-                 ? (syn_block->b_spell_cluster_id == 0)
-                 : (syn_block->b_syn_spell == SYNSPL_TOP);
-
-  /* nextgroup ends at end of line, unless "skipnl" or "skipempty" present */
-  if (current_next_list != NULL
-      && syn_getcurline()[current_col + 1] == NUL
-      && !(current_next_flags & (HL_SKIPNL | HL_SKIPEMPTY)))
-    current_next_list = NULL;
-
-  if (zero_width_next_ga.ga_len > 0)
-    ga_clear(&zero_width_next_ga);
-
-  /* No longer need external matches.  But keep next_match_extmatch. */
-  unref_extmatch(re_extmatch_out);
-  re_extmatch_out = NULL;
-  unref_extmatch(cur_extmatch);
-
-  return current_attr;
-}
-
-
-/*
- * Check if we already matched pattern "idx" at the current column.
- */
-static int did_match_already(int idx, garray_T *gap)
-{
-  int i;
-
-  for (i = current_state.ga_len; --i >= 0; )
-    if (CUR_STATE(i).si_m_startcol == (int)current_col
-        && CUR_STATE(i).si_m_lnum == (int)current_lnum
-        && CUR_STATE(i).si_idx == idx)
-      return TRUE;
-
-  /* Zero-width matches with a nextgroup argument are not put on the syntax
-   * stack, and can only be matched once anyway. */
-  for (i = gap->ga_len; --i >= 0; )
-    if (((int *)(gap->ga_data))[i] == idx)
-      return TRUE;
-
-  return FALSE;
-}
-
-/*
- * Push the next match onto the stack.
- */
-static stateitem_T *push_next_match(stateitem_T *cur_si)
-{
-  synpat_T    *spp;
-  int save_flags;
-
-  spp = &(SYN_ITEMS(syn_block)[next_match_idx]);
-
-  /*
-   * Push the item in current_state stack;
-   */
-  push_current_state(next_match_idx);
-  {
-    /*
-     * If it's a start-skip-end type that crosses lines, figure out how
-     * much it continues in this line.  Otherwise just fill in the length.
-     */
-    cur_si = &CUR_STATE(current_state.ga_len - 1);
-    cur_si->si_h_startpos = next_match_h_startpos;
-    cur_si->si_m_startcol = current_col;
-    cur_si->si_m_lnum = current_lnum;
-    cur_si->si_flags = spp->sp_flags;
-    cur_si->si_seqnr = next_seqnr++;
-    cur_si->si_cchar = spp->sp_cchar;
-    if (current_state.ga_len > 1)
-      cur_si->si_flags |=
-        CUR_STATE(current_state.ga_len - 2).si_flags & HL_CONCEAL;
-    cur_si->si_next_list = spp->sp_next_list;
-    cur_si->si_extmatch = ref_extmatch(next_match_extmatch);
-    if (spp->sp_type == SPTYPE_START && !(spp->sp_flags & HL_ONELINE)) {
-      /* Try to find the end pattern in the current line */
-      update_si_end(cur_si, (int)(next_match_m_endpos.col), TRUE);
-      check_keepend();
-    } else {
-      cur_si->si_m_endpos = next_match_m_endpos;
-      cur_si->si_h_endpos = next_match_h_endpos;
-      cur_si->si_ends = TRUE;
-      cur_si->si_flags |= next_match_flags;
-      cur_si->si_eoe_pos = next_match_eoe_pos;
-      cur_si->si_end_idx = next_match_end_idx;
-    }
-    if (keepend_level < 0 && (cur_si->si_flags & HL_KEEPEND))
-      keepend_level = current_state.ga_len - 1;
-    check_keepend();
-    update_si_attr(current_state.ga_len - 1);
-
-    save_flags = cur_si->si_flags & (HL_CONCEAL | HL_CONCEALENDS);
-    /*
-     * If the start pattern has another highlight group, push another item
-     * on the stack for the start pattern.
-     */
-    if (spp->sp_type == SPTYPE_START && spp->sp_syn_match_id != 0) {
-      push_current_state(next_match_idx);
-      cur_si = &CUR_STATE(current_state.ga_len - 1);
-      cur_si->si_h_startpos = next_match_h_startpos;
-      cur_si->si_m_startcol = current_col;
-      cur_si->si_m_lnum = current_lnum;
-      cur_si->si_m_endpos = next_match_eos_pos;
-      cur_si->si_h_endpos = next_match_eos_pos;
-      cur_si->si_ends = TRUE;
-      cur_si->si_end_idx = 0;
-      cur_si->si_flags = HL_MATCH;
-      cur_si->si_seqnr = next_seqnr++;
-      cur_si->si_flags |= save_flags;
-      if (cur_si->si_flags & HL_CONCEALENDS)
-        cur_si->si_flags |= HL_CONCEAL;
-      cur_si->si_next_list = NULL;
-      check_keepend();
-      update_si_attr(current_state.ga_len - 1);
-    }
-  }
-
-  next_match_idx = -1;          /* try other match next time */
-
-  return cur_si;
-}
-
-/*
- * Check for end of current state (and the states before it).
- */
-static void check_state_ends(void)
-{
-  stateitem_T *cur_si;
-  int had_extend;
-
-  cur_si = &CUR_STATE(current_state.ga_len - 1);
-  for (;; ) {
-    if (cur_si->si_ends
-        && (cur_si->si_m_endpos.lnum < current_lnum
-            || (cur_si->si_m_endpos.lnum == current_lnum
-                && cur_si->si_m_endpos.col <= current_col))) {
-      /*
-       * If there is an end pattern group ID, highlight the end pattern
-       * now.  No need to pop the current item from the stack.
-       * Only do this if the end pattern continues beyond the current
-       * position.
-       */
-      if (cur_si->si_end_idx
-          && (cur_si->si_eoe_pos.lnum > current_lnum
-              || (cur_si->si_eoe_pos.lnum == current_lnum
-                  && cur_si->si_eoe_pos.col > current_col))) {
-        cur_si->si_idx = cur_si->si_end_idx;
-        cur_si->si_end_idx = 0;
-        cur_si->si_m_endpos = cur_si->si_eoe_pos;
-        cur_si->si_h_endpos = cur_si->si_eoe_pos;
-        cur_si->si_flags |= HL_MATCH;
-        cur_si->si_seqnr = next_seqnr++;
-        if (cur_si->si_flags & HL_CONCEALENDS)
-          cur_si->si_flags |= HL_CONCEAL;
-        update_si_attr(current_state.ga_len - 1);
-
-        /* nextgroup= should not match in the end pattern */
-        current_next_list = NULL;
-
-        /* what matches next may be different now, clear it */
-        next_match_idx = 0;
-        next_match_col = MAXCOL;
-        break;
-      } else {
-        /* handle next_list, unless at end of line and no "skipnl" or
-         * "skipempty" */
-        current_next_list = cur_si->si_next_list;
-        current_next_flags = cur_si->si_flags;
-        if (!(current_next_flags & (HL_SKIPNL | HL_SKIPEMPTY))
-            && syn_getcurline()[current_col] == NUL)
-          current_next_list = NULL;
-
-        /* When the ended item has "extend", another item with
-         * "keepend" now needs to check for its end. */
-        had_extend = (cur_si->si_flags & HL_EXTEND);
-
-        pop_current_state();
-
-        if (current_state.ga_len == 0)
-          break;
-
-        if (had_extend && keepend_level >= 0) {
-          syn_update_ends(FALSE);
-          if (current_state.ga_len == 0)
-            break;
-        }
-
-        cur_si = &CUR_STATE(current_state.ga_len - 1);
-
-        /*
-         * Only for a region the search for the end continues after
-         * the end of the contained item.  If the contained match
-         * included the end-of-line, break here, the region continues.
-         * Don't do this when:
-         * - "keepend" is used for the contained item
-         * - not at the end of the line (could be end="x$"me=e-1).
-         * - "excludenl" is used (HL_HAS_EOL won't be set)
-         */
-        if (cur_si->si_idx >= 0
-            && SYN_ITEMS(syn_block)[cur_si->si_idx].sp_type
-            == SPTYPE_START
-            && !(cur_si->si_flags & (HL_MATCH | HL_KEEPEND))) {
-          update_si_end(cur_si, (int)current_col, TRUE);
-          check_keepend();
-          if ((current_next_flags & HL_HAS_EOL)
-              && keepend_level < 0
-              && syn_getcurline()[current_col] == NUL)
-            break;
-        }
-      }
-    } else
-      break;
-  }
-}
-
-/*
- * Update an entry in the current_state stack for a match or region.  This
- * fills in si_attr, si_next_list and si_cont_list.
- */
-static void update_si_attr(int idx)
-{
-  stateitem_T *sip = &CUR_STATE(idx);
-  synpat_T    *spp;
-
-  /* This should not happen... */
-  if (sip->si_idx < 0)
-    return;
-
-  spp = &(SYN_ITEMS(syn_block)[sip->si_idx]);
-  if (sip->si_flags & HL_MATCH)
-    sip->si_id = spp->sp_syn_match_id;
-  else
-    sip->si_id = spp->sp_syn.id;
-  sip->si_attr = syn_id2attr(sip->si_id);
-  sip->si_trans_id = sip->si_id;
-  if (sip->si_flags & HL_MATCH)
-    sip->si_cont_list = NULL;
-  else
-    sip->si_cont_list = spp->sp_cont_list;
-
-  /*
-   * For transparent items, take attr from outer item.
-   * Also take cont_list, if there is none.
-   * Don't do this for the matchgroup of a start or end pattern.
-   */
-  if ((spp->sp_flags & HL_TRANSP) && !(sip->si_flags & HL_MATCH)) {
-    if (idx == 0) {
-      sip->si_attr = 0;
-      sip->si_trans_id = 0;
-      if (sip->si_cont_list == NULL)
-        sip->si_cont_list = ID_LIST_ALL;
-    } else {
-      sip->si_attr = CUR_STATE(idx - 1).si_attr;
-      sip->si_trans_id = CUR_STATE(idx - 1).si_trans_id;
-      sip->si_h_startpos = CUR_STATE(idx - 1).si_h_startpos;
-      sip->si_h_endpos = CUR_STATE(idx - 1).si_h_endpos;
-      if (sip->si_cont_list == NULL) {
-        sip->si_flags |= HL_TRANS_CONT;
-        sip->si_cont_list = CUR_STATE(idx - 1).si_cont_list;
-      }
-    }
-  }
-}
-
-/*
- * Check the current stack for patterns with "keepend" flag.
- * Propagate the match-end to contained items, until a "skipend" item is found.
- */
-static void check_keepend(void)
-{
-  int i;
-  lpos_T maxpos;
-  lpos_T maxpos_h;
-  stateitem_T *sip;
-
-  /*
-   * This check can consume a lot of time; only do it from the level where
-   * there really is a keepend.
-   */
-  if (keepend_level < 0)
-    return;
-
-  /*
-   * Find the last index of an "extend" item.  "keepend" items before that
-   * won't do anything.  If there is no "extend" item "i" will be
-   * "keepend_level" and all "keepend" items will work normally.
-   */
-  for (i = current_state.ga_len - 1; i > keepend_level; --i)
-    if (CUR_STATE(i).si_flags & HL_EXTEND)
-      break;
-
-  maxpos.lnum = 0;
-  maxpos.col = 0;
-  maxpos_h.lnum = 0;
-  maxpos_h.col = 0;
-  for (; i < current_state.ga_len; ++i) {
-    sip = &CUR_STATE(i);
-    if (maxpos.lnum != 0) {
-      limit_pos_zero(&sip->si_m_endpos, &maxpos);
-      limit_pos_zero(&sip->si_h_endpos, &maxpos_h);
-      limit_pos_zero(&sip->si_eoe_pos, &maxpos);
-      sip->si_ends = TRUE;
-    }
-    if (sip->si_ends && (sip->si_flags & HL_KEEPEND)) {
-      if (maxpos.lnum == 0
-          || maxpos.lnum > sip->si_m_endpos.lnum
-          || (maxpos.lnum == sip->si_m_endpos.lnum
-              && maxpos.col > sip->si_m_endpos.col))
-        maxpos = sip->si_m_endpos;
-      if (maxpos_h.lnum == 0
-          || maxpos_h.lnum > sip->si_h_endpos.lnum
-          || (maxpos_h.lnum == sip->si_h_endpos.lnum
-              && maxpos_h.col > sip->si_h_endpos.col))
-        maxpos_h = sip->si_h_endpos;
-    }
-  }
-}
-
-/*
- * Update an entry in the current_state stack for a start-skip-end pattern.
- * This finds the end of the current item, if it's in the current line.
- *
- * Return the flags for the matched END.
- */
-static void 
-update_si_end (
-    stateitem_T *sip,
-    int startcol,               /* where to start searching for the end */
-    int force                  /* when TRUE overrule a previous end */
-)
-{
-  lpos_T startpos;
-  lpos_T endpos;
-  lpos_T hl_endpos;
-  lpos_T end_endpos;
-  int end_idx;
-
-  /* return quickly for a keyword */
-  if (sip->si_idx < 0)
-    return;
-
-  /* Don't update when it's already done.  Can be a match of an end pattern
-   * that started in a previous line.  Watch out: can also be a "keepend"
-   * from a containing item. */
-  if (!force && sip->si_m_endpos.lnum >= current_lnum)
-    return;
-
-  /*
-   * We need to find the end of the region.  It may continue in the next
-   * line.
-   */
-  end_idx = 0;
-  startpos.lnum = current_lnum;
-  startpos.col = startcol;
-  find_endpos(sip->si_idx, &startpos, &endpos, &hl_endpos,
-      &(sip->si_flags), &end_endpos, &end_idx, sip->si_extmatch);
-
-  if (endpos.lnum == 0) {
-    /* No end pattern matched. */
-    if (SYN_ITEMS(syn_block)[sip->si_idx].sp_flags & HL_ONELINE) {
-      /* a "oneline" never continues in the next line */
-      sip->si_ends = TRUE;
-      sip->si_m_endpos.lnum = current_lnum;
-      sip->si_m_endpos.col = (colnr_T)STRLEN(syn_getcurline());
-    } else {
-      /* continues in the next line */
-      sip->si_ends = FALSE;
-      sip->si_m_endpos.lnum = 0;
-    }
-    sip->si_h_endpos = sip->si_m_endpos;
-  } else {
-    /* match within this line */
-    sip->si_m_endpos = endpos;
-    sip->si_h_endpos = hl_endpos;
-    sip->si_eoe_pos = end_endpos;
-    sip->si_ends = TRUE;
-    sip->si_end_idx = end_idx;
-  }
-}
-
-/*
- * Add a new state to the current state stack.
- * It is cleared and the index set to "idx".
- */
-static void push_current_state(int idx)
-{
-  ga_grow(&current_state, 1);
-  memset(&CUR_STATE(current_state.ga_len), 0, sizeof(stateitem_T));
-  CUR_STATE(current_state.ga_len).si_idx = idx;
-  ++current_state.ga_len;
-}
-
-/*
- * Remove a state from the current_state stack.
- */
-static void pop_current_state(void)
-{
-  if (current_state.ga_len) {
-    unref_extmatch(CUR_STATE(current_state.ga_len - 1).si_extmatch);
-    --current_state.ga_len;
-  }
-  /* after the end of a pattern, try matching a keyword or pattern */
-  next_match_idx = -1;
-
-  /* if first state with "keepend" is popped, reset keepend_level */
-  if (keepend_level >= current_state.ga_len)
-    keepend_level = -1;
-}
-
-/*
- * Find the end of a start/skip/end syntax region after "startpos".
- * Only checks one line.
- * Also handles a match item that continued from a previous line.
- * If not found, the syntax item continues in the next line.  m_endpos->lnum
- * will be 0.
- * If found, the end of the region and the end of the highlighting is
- * computed.
- */
-static void 
-find_endpos (
-    int idx,                        /* index of the pattern */
-    lpos_T *startpos,          /* where to start looking for an END match */
-    lpos_T *m_endpos,          /* return: end of match */
-    lpos_T *hl_endpos,         /* return: end of highlighting */
-    long *flagsp,            /* return: flags of matching END */
-    lpos_T *end_endpos,        /* return: end of end pattern match */
-    int *end_idx,           /* return: group ID for end pat. match, or 0 */
-    reg_extmatch_T *start_ext      /* submatches from the start pattern */
-)
-{
-  colnr_T matchcol;
-  synpat_T    *spp, *spp_skip;
-  int start_idx;
-  int best_idx;
-  regmmatch_T regmatch;
-  regmmatch_T best_regmatch;        /* startpos/endpos of best match */
-  lpos_T pos;
-  char_u      *line;
-  int had_match = FALSE;
-
-  /* just in case we are invoked for a keyword */
-  if (idx < 0)
-    return;
-
-  /*
-   * Check for being called with a START pattern.
-   * Can happen with a match that continues to the next line, because it
-   * contained a region.
-   */
-  spp = &(SYN_ITEMS(syn_block)[idx]);
-  if (spp->sp_type != SPTYPE_START) {
-    *hl_endpos = *startpos;
-    return;
-  }
-
-  /*
-   * Find the SKIP or first END pattern after the last START pattern.
-   */
-  for (;; ) {
-    spp = &(SYN_ITEMS(syn_block)[idx]);
-    if (spp->sp_type != SPTYPE_START)
-      break;
-    ++idx;
-  }
-
-  /*
-   *	Lookup the SKIP pattern (if present)
-   */
-  if (spp->sp_type == SPTYPE_SKIP) {
-    spp_skip = spp;
-    ++idx;
-  } else
-    spp_skip = NULL;
-
-  /* Setup external matches for syn_regexec(). */
-  unref_extmatch(re_extmatch_in);
-  re_extmatch_in = ref_extmatch(start_ext);
-
-  matchcol = startpos->col;     /* start looking for a match at sstart */
-  start_idx = idx;              /* remember the first END pattern. */
-  best_regmatch.startpos[0].col = 0;            /* avoid compiler warning */
-  for (;; ) {
-    /*
-     * Find end pattern that matches first after "matchcol".
-     */
-    best_idx = -1;
-    for (idx = start_idx; idx < syn_block->b_syn_patterns.ga_len; ++idx) {
-      int lc_col = matchcol;
-
-      spp = &(SYN_ITEMS(syn_block)[idx]);
-      if (spp->sp_type != SPTYPE_END)           /* past last END pattern */
-        break;
-      lc_col -= spp->sp_offsets[SPO_LC_OFF];
-      if (lc_col < 0)
-        lc_col = 0;
-
-      regmatch.rmm_ic = spp->sp_ic;
-      regmatch.regprog = spp->sp_prog;
-      if (syn_regexec(&regmatch, startpos->lnum, lc_col,
-              IF_SYN_TIME(&spp->sp_time))) {
-        if (best_idx == -1 || regmatch.startpos[0].col
-            < best_regmatch.startpos[0].col) {
-          best_idx = idx;
-          best_regmatch.startpos[0] = regmatch.startpos[0];
-          best_regmatch.endpos[0] = regmatch.endpos[0];
-        }
-      }
-    }
-
-    /*
-     * If all end patterns have been tried, and there is no match, the
-     * item continues until end-of-line.
-     */
-    if (best_idx == -1)
-      break;
-
-    /*
-     * If the skip pattern matches before the end pattern,
-     * continue searching after the skip pattern.
-     */
-    if (spp_skip != NULL) {
-      int lc_col = matchcol - spp_skip->sp_offsets[SPO_LC_OFF];
-
-      if (lc_col < 0)
-        lc_col = 0;
-      regmatch.rmm_ic = spp_skip->sp_ic;
-      regmatch.regprog = spp_skip->sp_prog;
-      if (syn_regexec(&regmatch, startpos->lnum, lc_col,
-              IF_SYN_TIME(&spp_skip->sp_time))
-          && regmatch.startpos[0].col
-          <= best_regmatch.startpos[0].col) {
-        /* Add offset to skip pattern match */
-        syn_add_end_off(&pos, &regmatch, spp_skip, SPO_ME_OFF, 1);
-
-        /* If the skip pattern goes on to the next line, there is no
-         * match with an end pattern in this line. */
-        if (pos.lnum > startpos->lnum)
-          break;
-
-        line = ml_get_buf(syn_buf, startpos->lnum, FALSE);
-
-        /* take care of an empty match or negative offset */
-        if (pos.col <= matchcol)
-          ++matchcol;
-        else if (pos.col <= regmatch.endpos[0].col)
-          matchcol = pos.col;
-        else
-          /* Be careful not to jump over the NUL at the end-of-line */
-          for (matchcol = regmatch.endpos[0].col;
-               line[matchcol] != NUL && matchcol < pos.col;
-               ++matchcol)
-            ;
-
-        /* if the skip pattern includes end-of-line, break here */
-        if (line[matchcol] == NUL)
-          break;
-
-        continue;                   /* start with first end pattern again */
-      }
-    }
-
-    /*
-     * Match from start pattern to end pattern.
-     * Correct for match and highlight offset of end pattern.
-     */
-    spp = &(SYN_ITEMS(syn_block)[best_idx]);
-    syn_add_end_off(m_endpos, &best_regmatch, spp, SPO_ME_OFF, 1);
-    /* can't end before the start */
-    if (m_endpos->lnum == startpos->lnum && m_endpos->col < startpos->col)
-      m_endpos->col = startpos->col;
-
-    syn_add_end_off(end_endpos, &best_regmatch, spp, SPO_HE_OFF, 1);
-    /* can't end before the start */
-    if (end_endpos->lnum == startpos->lnum
-        && end_endpos->col < startpos->col)
-      end_endpos->col = startpos->col;
-    /* can't end after the match */
-    limit_pos(end_endpos, m_endpos);
-
-    /*
-     * If the end group is highlighted differently, adjust the pointers.
-     */
-    if (spp->sp_syn_match_id != spp->sp_syn.id && spp->sp_syn_match_id != 0) {
-      *end_idx = best_idx;
-      if (spp->sp_off_flags & (1 << (SPO_RE_OFF + SPO_COUNT))) {
-        hl_endpos->lnum = best_regmatch.endpos[0].lnum;
-        hl_endpos->col = best_regmatch.endpos[0].col;
-      } else {
-        hl_endpos->lnum = best_regmatch.startpos[0].lnum;
-        hl_endpos->col = best_regmatch.startpos[0].col;
-      }
-      hl_endpos->col += spp->sp_offsets[SPO_RE_OFF];
-
-      /* can't end before the start */
-      if (hl_endpos->lnum == startpos->lnum
-          && hl_endpos->col < startpos->col)
-        hl_endpos->col = startpos->col;
-      limit_pos(hl_endpos, m_endpos);
-
-      /* now the match ends where the highlighting ends, it is turned
-       * into the matchgroup for the end */
-      *m_endpos = *hl_endpos;
-    } else {
-      *end_idx = 0;
-      *hl_endpos = *end_endpos;
-    }
-
-    *flagsp = spp->sp_flags;
-
-    had_match = TRUE;
-    break;
-  }
-
-  /* no match for an END pattern in this line */
-  if (!had_match)
-    m_endpos->lnum = 0;
-
-  /* Remove external matches. */
-  unref_extmatch(re_extmatch_in);
-  re_extmatch_in = NULL;
-}
-
-/*
- * Limit "pos" not to be after "limit".
- */
-static void limit_pos(lpos_T *pos, lpos_T *limit)
-{
-  if (pos->lnum > limit->lnum)
-    *pos = *limit;
-  else if (pos->lnum == limit->lnum && pos->col > limit->col)
-    pos->col = limit->col;
-}
-
-/*
- * Limit "pos" not to be after "limit", unless pos->lnum is zero.
- */
-static void limit_pos_zero(lpos_T *pos, lpos_T *limit)
-{
-  if (pos->lnum == 0)
-    *pos = *limit;
-  else
-    limit_pos(pos, limit);
-}
-
-/*
- * Add offset to matched text for end of match or highlight.
- */
-static void 
-syn_add_end_off (
-    lpos_T *result,            /* returned position */
-    regmmatch_T *regmatch,          /* start/end of match */
-    synpat_T *spp,               /* matched pattern */
-    int idx,                        /* index of offset */
-    int extra                      /* extra chars for offset to start */
-)
-{
-  int col;
-  int off;
-  char_u      *base;
-  char_u      *p;
-
-  if (spp->sp_off_flags & (1 << idx)) {
-    result->lnum = regmatch->startpos[0].lnum;
-    col = regmatch->startpos[0].col;
-    off = spp->sp_offsets[idx] + extra;
-  } else {
-    result->lnum = regmatch->endpos[0].lnum;
-    col = regmatch->endpos[0].col;
-    off = spp->sp_offsets[idx];
-  }
-  /* Don't go past the end of the line.  Matters for "rs=e+2" when there
-   * is a matchgroup. Watch out for match with last NL in the buffer. */
-  if (result->lnum > syn_buf->b_ml.ml_line_count)
-    col = 0;
-  else if (off != 0) {
-    base = ml_get_buf(syn_buf, result->lnum, FALSE);
-    p = base + col;
-    if (off > 0) {
-      while (off-- > 0 && *p != NUL)
-        mb_ptr_adv(p);
-    } else if (off < 0)   {
-      while (off++ < 0 && base < p)
-        mb_ptr_back(base, p);
-    }
-    col = (int)(p - base);
-  }
-  result->col = col;
-}
-
-/*
- * Add offset to matched text for start of match or highlight.
- * Avoid resulting column to become negative.
- */
-static void 
-syn_add_start_off (
-    lpos_T *result,            /* returned position */
-    regmmatch_T *regmatch,          /* start/end of match */
-    synpat_T *spp,
-    int idx,
-    int extra                  /* extra chars for offset to end */
-)
-{
-  int col;
-  int off;
-  char_u      *base;
-  char_u      *p;
-
-  if (spp->sp_off_flags & (1 << (idx + SPO_COUNT))) {
-    result->lnum = regmatch->endpos[0].lnum;
-    col = regmatch->endpos[0].col;
-    off = spp->sp_offsets[idx] + extra;
-  } else {
-    result->lnum = regmatch->startpos[0].lnum;
-    col = regmatch->startpos[0].col;
-    off = spp->sp_offsets[idx];
-  }
-  if (result->lnum > syn_buf->b_ml.ml_line_count) {
-    /* a "\n" at the end of the pattern may take us below the last line */
-    result->lnum = syn_buf->b_ml.ml_line_count;
-    col = (int)STRLEN(ml_get_buf(syn_buf, result->lnum, FALSE));
-  }
-  if (off != 0) {
-    base = ml_get_buf(syn_buf, result->lnum, FALSE);
-    p = base + col;
-    if (off > 0) {
-      while (off-- && *p != NUL)
-        mb_ptr_adv(p);
-    } else if (off < 0)   {
-      while (off++ && base < p)
-        mb_ptr_back(base, p);
-    }
-    col = (int)(p - base);
-  }
-  result->col = col;
-}
-
-/*
- * Get current line in syntax buffer.
- */
-static char_u *syn_getcurline(void)
-{
-  return ml_get_buf(syn_buf, current_lnum, FALSE);
-}
-
-/*
- * Call vim_regexec() to find a match with "rmp" in "syn_buf".
- * Returns TRUE when there is a match.
- */
-static int syn_regexec(regmmatch_T *rmp, linenr_T lnum, colnr_T col, syn_time_T *st)
-{
-  int r;
-  proftime_T pt;
-
-  if (syn_time_on)
-    profile_start(&pt);
-
-  rmp->rmm_maxcol = syn_buf->b_p_smc;
-  r = vim_regexec_multi(rmp, syn_win, syn_buf, lnum, col, NULL);
-
-  if (syn_time_on) {
-    profile_end(&pt);
-    profile_add(&st->total, &pt);
-    if (profile_cmp(&pt, &st->slowest) < 0)
-      st->slowest = pt;
-    ++st->count;
-    if (r > 0)
-      ++st->match;
-  }
-
-  if (r > 0) {
-    rmp->startpos[0].lnum += lnum;
-    rmp->endpos[0].lnum += lnum;
-    return TRUE;
-  }
-  return FALSE;
-}
-
-/*
- * Check one position in a line for a matching keyword.
- * The caller must check if a keyword can start at startcol.
- * Return it's ID if found, 0 otherwise.
- */
-static int 
-check_keyword_id (
-    char_u *line,
-    int startcol,                   /* position in line to check for keyword */
-    int *endcolp,           /* return: character after found keyword */
-    long *flagsp,            /* return: flags of matching keyword */
-    short **next_listp,       /* return: next_list of matching keyword */
-    stateitem_T *cur_si,            /* item at the top of the stack */
-    int *ccharp     /* conceal substitution char */
-)
-{
-  char_u      *kwp;
-  int kwlen;
-  char_u keyword[MAXKEYWLEN + 1];        /* assume max. keyword len is 80 */
-
-  /* Find first character after the keyword.  First character was already
-   * checked. */
-  kwp = line + startcol;
-  kwlen = 0;
-  do {
-    if (has_mbyte)
-      kwlen += (*mb_ptr2len)(kwp + kwlen);
-    else
-      ++kwlen;
-  } while (vim_iswordp_buf(kwp + kwlen, syn_buf));
-
-  if (kwlen > MAXKEYWLEN)
-    return 0;
-
-  /*
-   * Must make a copy of the keyword, so we can add a NUL and make it
-   * lowercase.
-   */
-  vim_strncpy(keyword, kwp, kwlen);
-
-  keyentry_T *kp = NULL;
-
-  // matching case
-  if (syn_block->b_keywtab.ht_used != 0) {
-    kp = match_keyword(keyword, &syn_block->b_keywtab, cur_si);
-  }
-
-  // ignoring case
-  if (kp == NULL && syn_block->b_keywtab_ic.ht_used != 0) {
-    str_foldcase(kwp, kwlen, keyword, MAXKEYWLEN + 1);
-    kp = match_keyword(keyword, &syn_block->b_keywtab_ic, cur_si);
-  }
-
-  if (kp != NULL) {
-    *endcolp = startcol + kwlen;
-    *flagsp = kp->flags;
-    *next_listp = kp->next_list;
-    *ccharp = kp->k_char;
-    return kp->k_syn.id;
-  }
-
-  return 0;
-}
-
-/// Find keywords that match.  There can be several with different
-/// attributes.
-/// When current_next_list is non-zero accept only that group, otherwise:
-///  Accept a not-contained keyword at toplevel.
-///  Accept a keyword at other levels only if it is in the contains list.
-static keyentry_T *match_keyword(char_u *keyword, hashtab_T *ht,
-                                 stateitem_T *cur_si)
-{
-  hashitem_T *hi = hash_find(ht, keyword);
-  if (!HASHITEM_EMPTY(hi))
-    for (keyentry_T *kp = HI2KE(hi); kp != NULL; kp = kp->ke_next) {
-      if (current_next_list != 0
-          ? in_id_list(NULL, current_next_list, &kp->k_syn, 0)
-          : (cur_si == NULL
-            ? !(kp->flags & HL_CONTAINED)
-            : in_id_list(cur_si, cur_si->si_cont_list,
-                         &kp->k_syn, kp->flags & HL_CONTAINED))) {
-        return kp;
-      }
-    }
-  return NULL;
-}
-
-/*
- * Handle ":syntax conceal" command.
- */
-static void syn_cmd_conceal(exarg_T *eap, int syncing)
-{
-  char_u      *arg = eap->arg;
-  char_u      *next;
-
-  eap->nextcmd = find_nextcmd(arg);
-  if (eap->skip)
-    return;
-
-  next = skiptowhite(arg);
-  if (STRNICMP(arg, "on", 2) == 0 && next - arg == 2)
-    curwin->w_s->b_syn_conceal = TRUE;
-  else if (STRNICMP(arg, "off", 3) == 0 && next - arg == 3)
-    curwin->w_s->b_syn_conceal = FALSE;
-  else
-    EMSG2(_("E390: Illegal argument: %s"), arg);
-}
-
-/*
- * Handle ":syntax case" command.
- */
-static void syn_cmd_case(exarg_T *eap, int syncing)
-{
-  char_u      *arg = eap->arg;
-  char_u      *next;
-
-  eap->nextcmd = find_nextcmd(arg);
-  if (eap->skip)
-    return;
-
-  next = skiptowhite(arg);
-  if (STRNICMP(arg, "match", 5) == 0 && next - arg == 5)
-    curwin->w_s->b_syn_ic = FALSE;
-  else if (STRNICMP(arg, "ignore", 6) == 0 && next - arg == 6)
-    curwin->w_s->b_syn_ic = TRUE;
-  else
-    EMSG2(_("E390: Illegal argument: %s"), arg);
-}
-
-/*
- * Handle ":syntax spell" command.
- */
-static void syn_cmd_spell(exarg_T *eap, int syncing)
-{
-  char_u      *arg = eap->arg;
-  char_u      *next;
-
-  eap->nextcmd = find_nextcmd(arg);
-  if (eap->skip)
-    return;
-
-  next = skiptowhite(arg);
-  if (STRNICMP(arg, "toplevel", 8) == 0 && next - arg == 8)
-    curwin->w_s->b_syn_spell = SYNSPL_TOP;
-  else if (STRNICMP(arg, "notoplevel", 10) == 0 && next - arg == 10)
-    curwin->w_s->b_syn_spell = SYNSPL_NOTOP;
-  else if (STRNICMP(arg, "default", 7) == 0 && next - arg == 7)
-    curwin->w_s->b_syn_spell = SYNSPL_DEFAULT;
-  else
-    EMSG2(_("E390: Illegal argument: %s"), arg);
-}
-
-/*
- * Clear all syntax info for one buffer.
- */
-void syntax_clear(synblock_T *block)
-{
-  int i;
-
-  block->b_syn_error = FALSE;       /* clear previous error */
-  block->b_syn_ic = FALSE;          /* Use case, by default */
-  block->b_syn_spell = SYNSPL_DEFAULT;   /* default spell checking */
-  block->b_syn_containedin = FALSE;
-
-  /* free the keywords */
-  clear_keywtab(&block->b_keywtab);
-  clear_keywtab(&block->b_keywtab_ic);
-
-  /* free the syntax patterns */
-  for (i = block->b_syn_patterns.ga_len; --i >= 0; )
-    syn_clear_pattern(block, i);
-  ga_clear(&block->b_syn_patterns);
-
-  /* free the syntax clusters */
-  for (i = block->b_syn_clusters.ga_len; --i >= 0; )
-    syn_clear_cluster(block, i);
-  ga_clear(&block->b_syn_clusters);
-  block->b_spell_cluster_id = 0;
-  block->b_nospell_cluster_id = 0;
-
-  block->b_syn_sync_flags = 0;
-  block->b_syn_sync_minlines = 0;
-  block->b_syn_sync_maxlines = 0;
-  block->b_syn_sync_linebreaks = 0;
-
-  vim_regfree(block->b_syn_linecont_prog);
-  block->b_syn_linecont_prog = NULL;
-  free(block->b_syn_linecont_pat);
-  block->b_syn_linecont_pat = NULL;
-  block->b_syn_folditems = 0;
-
-  /* free the stored states */
-  syn_stack_free_all(block);
-  invalidate_current_state();
-
-  /* Reset the counter for ":syn include" */
-  running_syn_inc_tag = 0;
-}
-
-/*
- * Get rid of ownsyntax for window "wp".
- */
-void reset_synblock(win_T *wp)
-{
-  if (wp->w_s != &wp->w_buffer->b_s) {
-    syntax_clear(wp->w_s);
-    free(wp->w_s);
-    wp->w_s = &wp->w_buffer->b_s;
-  }
-}
-
-/*
- * Clear syncing info for one buffer.
- */
-static void syntax_sync_clear(void)
-{
-  int i;
-
-  /* free the syntax patterns */
-  for (i = curwin->w_s->b_syn_patterns.ga_len; --i >= 0; )
-    if (SYN_ITEMS(curwin->w_s)[i].sp_syncing)
-      syn_remove_pattern(curwin->w_s, i);
-
-  curwin->w_s->b_syn_sync_flags = 0;
-  curwin->w_s->b_syn_sync_minlines = 0;
-  curwin->w_s->b_syn_sync_maxlines = 0;
-  curwin->w_s->b_syn_sync_linebreaks = 0;
-
-  vim_regfree(curwin->w_s->b_syn_linecont_prog);
-  curwin->w_s->b_syn_linecont_prog = NULL;
-  free(curwin->w_s->b_syn_linecont_pat);
-  curwin->w_s->b_syn_linecont_pat = NULL;
-
-  syn_stack_free_all(curwin->w_s);              /* Need to recompute all syntax. */
-}
-
-/*
- * Remove one pattern from the buffer's pattern list.
- */
-static void syn_remove_pattern(synblock_T *block, int idx)
-{
-  synpat_T    *spp;
-
-  spp = &(SYN_ITEMS(block)[idx]);
-  if (spp->sp_flags & HL_FOLD)
-    --block->b_syn_folditems;
-  syn_clear_pattern(block, idx);
-  memmove(spp, spp + 1,
-      sizeof(synpat_T) * (block->b_syn_patterns.ga_len - idx - 1));
-  --block->b_syn_patterns.ga_len;
-}
-
-/*
- * Clear and free one syntax pattern.  When clearing all, must be called from
- * last to first!
- */
-static void syn_clear_pattern(synblock_T *block, int i)
-{
-  free(SYN_ITEMS(block)[i].sp_pattern);
-  vim_regfree(SYN_ITEMS(block)[i].sp_prog);
-  /* Only free sp_cont_list and sp_next_list of first start pattern */
-  if (i == 0 || SYN_ITEMS(block)[i - 1].sp_type != SPTYPE_START) {
-    free(SYN_ITEMS(block)[i].sp_cont_list);
-    free(SYN_ITEMS(block)[i].sp_next_list);
-    free(SYN_ITEMS(block)[i].sp_syn.cont_in_list);
-  }
-}
-
-/*
- * Clear and free one syntax cluster.
- */
-static void syn_clear_cluster(synblock_T *block, int i)
-{
-  free(SYN_CLSTR(block)[i].scl_name);
-  free(SYN_CLSTR(block)[i].scl_name_u);
-  free(SYN_CLSTR(block)[i].scl_list);
-}
-
-/*
- * Handle ":syntax clear" command.
- */
-static void syn_cmd_clear(exarg_T *eap, int syncing)
-{
-  char_u      *arg = eap->arg;
-  char_u      *arg_end;
-  int id;
-
-  eap->nextcmd = find_nextcmd(arg);
-  if (eap->skip)
-    return;
-
-  /*
-   * We have to disable this within ":syn include @group filename",
-   * because otherwise @group would get deleted.
-   * Only required for Vim 5.x syntax files, 6.0 ones don't contain ":syn
-   * clear".
-   */
-  if (curwin->w_s->b_syn_topgrp != 0)
-    return;
-
-  if (ends_excmd(*arg)) {
-    /*
-     * No argument: Clear all syntax items.
-     */
-    if (syncing)
-      syntax_sync_clear();
-    else {
-      syntax_clear(curwin->w_s);
-      if (curwin->w_s == &curwin->w_buffer->b_s)
-        do_unlet((char_u *)"b:current_syntax", TRUE);
-      do_unlet((char_u *)"w:current_syntax", TRUE);
-    }
-  } else {
-    /*
-     * Clear the group IDs that are in the argument.
-     */
-    while (!ends_excmd(*arg)) {
-      arg_end = skiptowhite(arg);
-      if (*arg == '@') {
-        id = syn_scl_namen2id(arg + 1, (int)(arg_end - arg - 1));
-        if (id == 0) {
-          EMSG2(_("E391: No such syntax cluster: %s"), arg);
-          break;
-        } else {
-          /*
-           * We can't physically delete a cluster without changing
-           * the IDs of other clusters, so we do the next best thing
-           * and make it empty.
-           */
-          short scl_id = id - SYNID_CLUSTER;
-
-          free(SYN_CLSTR(curwin->w_s)[scl_id].scl_list);
-          SYN_CLSTR(curwin->w_s)[scl_id].scl_list = NULL;
-        }
-      } else {
-        id = syn_namen2id(arg, (int)(arg_end - arg));
-        if (id == 0) {
-          EMSG2(_(e_nogroup), arg);
-          break;
-        } else
-          syn_clear_one(id, syncing);
-      }
-      arg = skipwhite(arg_end);
-    }
-  }
-  redraw_curbuf_later(SOME_VALID);
-  syn_stack_free_all(curwin->w_s);              /* Need to recompute all syntax. */
-}
-
-/*
- * Clear one syntax group for the current buffer.
- */
-static void syn_clear_one(int id, int syncing)
-{
-  synpat_T    *spp;
-  int idx;
-
-  /* Clear keywords only when not ":syn sync clear group-name" */
-  if (!syncing) {
-    (void)syn_clear_keyword(id, &curwin->w_s->b_keywtab);
-    (void)syn_clear_keyword(id, &curwin->w_s->b_keywtab_ic);
-  }
-
-  /* clear the patterns for "id" */
-  for (idx = curwin->w_s->b_syn_patterns.ga_len; --idx >= 0; ) {
-    spp = &(SYN_ITEMS(curwin->w_s)[idx]);
-    if (spp->sp_syn.id != id || spp->sp_syncing != syncing)
-      continue;
-    syn_remove_pattern(curwin->w_s, idx);
-  }
-}
-
-/*
- * Handle ":syntax on" command.
- */
-static void syn_cmd_on(exarg_T *eap, int syncing)
-{
-  syn_cmd_onoff(eap, "syntax");
-}
-
-/*
- * Handle ":syntax enable" command.
- */
-static void syn_cmd_enable(exarg_T *eap, int syncing)
-{
-  set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"enable");
-  syn_cmd_onoff(eap, "syntax");
-  do_unlet((char_u *)"g:syntax_cmd", TRUE);
-}
-
-/*
- * Handle ":syntax reset" command.
- */
-static void syn_cmd_reset(exarg_T *eap, int syncing)
-{
-  eap->nextcmd = check_nextcmd(eap->arg);
-  if (!eap->skip) {
-    set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"reset");
-    do_cmdline_cmd((char_u *)"runtime! syntax/syncolor.vim");
-    do_unlet((char_u *)"g:syntax_cmd", TRUE);
-  }
-}
-
-/*
- * Handle ":syntax manual" command.
- */
-static void syn_cmd_manual(exarg_T *eap, int syncing)
-{
-  syn_cmd_onoff(eap, "manual");
-}
-
-/*
- * Handle ":syntax off" command.
- */
-static void syn_cmd_off(exarg_T *eap, int syncing)
-{
-  syn_cmd_onoff(eap, "nosyntax");
-}
-
-static void syn_cmd_onoff(exarg_T *eap, char *name)
-{
-  char_u buf[100];
-
-  eap->nextcmd = check_nextcmd(eap->arg);
-  if (!eap->skip) {
-    STRCPY(buf, "so ");
-    vim_snprintf((char *)buf + 3, sizeof(buf) - 3, SYNTAX_FNAME, name);
-    do_cmdline_cmd(buf);
-  }
-}
-
-/*
- * Handle ":syntax [list]" command: list current syntax words.
- */
-static void 
-syn_cmd_list (
-    exarg_T *eap,
-    int syncing                        /* when TRUE: list syncing items */
-)
-{
-  char_u      *arg = eap->arg;
-  int id;
-  char_u      *arg_end;
-
-  eap->nextcmd = find_nextcmd(arg);
-  if (eap->skip)
-    return;
-
-  if (!syntax_present(curwin)) {
-    MSG(_(msg_no_items));
-    return;
-  }
-
-  if (syncing) {
-    if (curwin->w_s->b_syn_sync_flags & SF_CCOMMENT) {
-      MSG_PUTS(_("syncing on C-style comments"));
-      syn_lines_msg();
-      syn_match_msg();
-      return;
-    } else if (!(curwin->w_s->b_syn_sync_flags & SF_MATCH))   {
-      if (curwin->w_s->b_syn_sync_minlines == 0)
-        MSG_PUTS(_("no syncing"));
-      else {
-        MSG_PUTS(_("syncing starts "));
-        msg_outnum(curwin->w_s->b_syn_sync_minlines);
-        MSG_PUTS(_(" lines before top line"));
-        syn_match_msg();
-      }
-      return;
-    }
-    MSG_PUTS_TITLE(_("\n--- Syntax sync items ---"));
-    if (curwin->w_s->b_syn_sync_minlines > 0
-        || curwin->w_s->b_syn_sync_maxlines > 0
-        || curwin->w_s->b_syn_sync_linebreaks > 0) {
-      MSG_PUTS(_("\nsyncing on items"));
-      syn_lines_msg();
-      syn_match_msg();
-    }
-  } else
-    MSG_PUTS_TITLE(_("\n--- Syntax items ---"));
-  if (ends_excmd(*arg)) {
-    /*
-     * No argument: List all group IDs and all syntax clusters.
-     */
-    for (id = 1; id <= highlight_ga.ga_len && !got_int; ++id)
-      syn_list_one(id, syncing, FALSE);
-    for (id = 0; id < curwin->w_s->b_syn_clusters.ga_len && !got_int; ++id)
-      syn_list_cluster(id);
-  } else {
-    /*
-     * List the group IDs and syntax clusters that are in the argument.
-     */
-    while (!ends_excmd(*arg) && !got_int) {
-      arg_end = skiptowhite(arg);
-      if (*arg == '@') {
-        id = syn_scl_namen2id(arg + 1, (int)(arg_end - arg - 1));
-        if (id == 0)
-          EMSG2(_("E392: No such syntax cluster: %s"), arg);
-        else
-          syn_list_cluster(id - SYNID_CLUSTER);
-      } else {
-        id = syn_namen2id(arg, (int)(arg_end - arg));
-        if (id == 0)
-          EMSG2(_(e_nogroup), arg);
-        else
-          syn_list_one(id, syncing, TRUE);
-      }
-      arg = skipwhite(arg_end);
-    }
-  }
-  eap->nextcmd = check_nextcmd(arg);
-}
-
-static void syn_lines_msg(void)
-{
-  if (curwin->w_s->b_syn_sync_maxlines > 0
-      || curwin->w_s->b_syn_sync_minlines > 0) {
-    MSG_PUTS("; ");
-    if (curwin->w_s->b_syn_sync_minlines > 0) {
-      MSG_PUTS(_("minimal "));
-      msg_outnum(curwin->w_s->b_syn_sync_minlines);
-      if (curwin->w_s->b_syn_sync_maxlines)
-        MSG_PUTS(", ");
-    }
-    if (curwin->w_s->b_syn_sync_maxlines > 0) {
-      MSG_PUTS(_("maximal "));
-      msg_outnum(curwin->w_s->b_syn_sync_maxlines);
-    }
-    MSG_PUTS(_(" lines before top line"));
-  }
-}
-
-static void syn_match_msg(void)
-{
-  if (curwin->w_s->b_syn_sync_linebreaks > 0) {
-    MSG_PUTS(_("; match "));
-    msg_outnum(curwin->w_s->b_syn_sync_linebreaks);
-    MSG_PUTS(_(" line breaks"));
-  }
-}
-
-static int last_matchgroup;
-
-struct name_list {
-  int flag;
-  char        *name;
-};
-
-static void syn_list_flags(struct name_list *nl, int flags, int attr);
-
-/*
- * List one syntax item, for ":syntax" or "syntax list syntax_name".
- */
-static void 
-syn_list_one (
-    int id,
-    int syncing,                        /* when TRUE: list syncing items */
-    int link_only                      /* when TRUE; list link-only too */
-)
-{
-  int attr;
-  int idx;
-  int did_header = FALSE;
-  synpat_T    *spp;
-  static struct name_list namelist1[] =
-  {
-    {HL_DISPLAY, "display"},
-    {HL_CONTAINED, "contained"},
-    {HL_ONELINE, "oneline"},
-    {HL_KEEPEND, "keepend"},
-    {HL_EXTEND, "extend"},
-    {HL_EXCLUDENL, "excludenl"},
-    {HL_TRANSP, "transparent"},
-    {HL_FOLD, "fold"},
-    {HL_CONCEAL, "conceal"},
-    {HL_CONCEALENDS, "concealends"},
-    {0, NULL}
-  };
-  static struct name_list namelist2[] =
-  {
-    {HL_SKIPWHITE, "skipwhite"},
-    {HL_SKIPNL, "skipnl"},
-    {HL_SKIPEMPTY, "skipempty"},
-    {0, NULL}
-  };
-
-  attr = hl_attr(HLF_D);                /* highlight like directories */
-
-  /* list the keywords for "id" */
-  if (!syncing) {
-    did_header = syn_list_keywords(id, &curwin->w_s->b_keywtab, FALSE, attr);
-    did_header = syn_list_keywords(id, &curwin->w_s->b_keywtab_ic,
-        did_header, attr);
-  }
-
-  /* list the patterns for "id" */
-  for (idx = 0; idx < curwin->w_s->b_syn_patterns.ga_len && !got_int; ++idx) {
-    spp = &(SYN_ITEMS(curwin->w_s)[idx]);
-    if (spp->sp_syn.id != id || spp->sp_syncing != syncing)
-      continue;
-
-    (void)syn_list_header(did_header, 999, id);
-    did_header = TRUE;
-    last_matchgroup = 0;
-    if (spp->sp_type == SPTYPE_MATCH) {
-      put_pattern("match", ' ', spp, attr);
-      msg_putchar(' ');
-    } else if (spp->sp_type == SPTYPE_START)   {
-      while (SYN_ITEMS(curwin->w_s)[idx].sp_type == SPTYPE_START)
-        put_pattern("start", '=', &SYN_ITEMS(curwin->w_s)[idx++], attr);
-      if (SYN_ITEMS(curwin->w_s)[idx].sp_type == SPTYPE_SKIP)
-        put_pattern("skip", '=', &SYN_ITEMS(curwin->w_s)[idx++], attr);
-      while (idx < curwin->w_s->b_syn_patterns.ga_len
-             && SYN_ITEMS(curwin->w_s)[idx].sp_type == SPTYPE_END)
-        put_pattern("end", '=', &SYN_ITEMS(curwin->w_s)[idx++], attr);
-      --idx;
-      msg_putchar(' ');
-    }
-    syn_list_flags(namelist1, spp->sp_flags, attr);
-
-    if (spp->sp_cont_list != NULL)
-      put_id_list((char_u *)"contains", spp->sp_cont_list, attr);
-
-    if (spp->sp_syn.cont_in_list != NULL)
-      put_id_list((char_u *)"containedin",
-          spp->sp_syn.cont_in_list, attr);
-
-    if (spp->sp_next_list != NULL) {
-      put_id_list((char_u *)"nextgroup", spp->sp_next_list, attr);
-      syn_list_flags(namelist2, spp->sp_flags, attr);
-    }
-    if (spp->sp_flags & (HL_SYNC_HERE|HL_SYNC_THERE)) {
-      if (spp->sp_flags & HL_SYNC_HERE)
-        msg_puts_attr((char_u *)"grouphere", attr);
-      else
-        msg_puts_attr((char_u *)"groupthere", attr);
-      msg_putchar(' ');
-      if (spp->sp_sync_idx >= 0)
-        msg_outtrans(HL_TABLE()[SYN_ITEMS(curwin->w_s)
-                                [spp->sp_sync_idx].sp_syn.id - 1].sg_name);
-      else
-        MSG_PUTS("NONE");
-      msg_putchar(' ');
-    }
-  }
-
-  /* list the link, if there is one */
-  if (HL_TABLE()[id - 1].sg_link && (did_header || link_only) && !got_int) {
-    (void)syn_list_header(did_header, 999, id);
-    msg_puts_attr((char_u *)"links to", attr);
-    msg_putchar(' ');
-    msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name);
-  }
-}
-
-static void syn_list_flags(struct name_list *nlist, int flags, int attr)
-{
-  int i;
-
-  for (i = 0; nlist[i].flag != 0; ++i)
-    if (flags & nlist[i].flag) {
-      msg_puts_attr((char_u *)nlist[i].name, attr);
-      msg_putchar(' ');
-    }
-}
-
-/*
- * List one syntax cluster, for ":syntax" or "syntax list syntax_name".
- */
-static void syn_list_cluster(int id)
-{
-  int endcol = 15;
-
-  /* slight hack:  roughly duplicate the guts of syn_list_header() */
-  msg_putchar('\n');
-  msg_outtrans(SYN_CLSTR(curwin->w_s)[id].scl_name);
-
-  if (msg_col >= endcol)        /* output at least one space */
-    endcol = msg_col + 1;
-  if (Columns <= endcol)        /* avoid hang for tiny window */
-    endcol = Columns - 1;
-
-  msg_advance(endcol);
-  if (SYN_CLSTR(curwin->w_s)[id].scl_list != NULL) {
-    put_id_list((char_u *)"cluster", SYN_CLSTR(curwin->w_s)[id].scl_list,
-        hl_attr(HLF_D));
-  } else {
-    msg_puts_attr((char_u *)"cluster", hl_attr(HLF_D));
-    msg_puts((char_u *)"=NONE");
-  }
-}
-
-static void put_id_list(char_u *name, short *list, int attr)
-{
-  short               *p;
-
-  msg_puts_attr(name, attr);
-  msg_putchar('=');
-  for (p = list; *p; ++p) {
-    if (*p >= SYNID_ALLBUT && *p < SYNID_TOP) {
-      if (p[1])
-        MSG_PUTS("ALLBUT");
-      else
-        MSG_PUTS("ALL");
-    } else if (*p >= SYNID_TOP && *p < SYNID_CONTAINED)   {
-      MSG_PUTS("TOP");
-    } else if (*p >= SYNID_CONTAINED && *p < SYNID_CLUSTER)   {
-      MSG_PUTS("CONTAINED");
-    } else if (*p >= SYNID_CLUSTER)   {
-      short scl_id = *p - SYNID_CLUSTER;
-
-      msg_putchar('@');
-      msg_outtrans(SYN_CLSTR(curwin->w_s)[scl_id].scl_name);
-    } else
-      msg_outtrans(HL_TABLE()[*p - 1].sg_name);
-    if (p[1])
-      msg_putchar(',');
-  }
-  msg_putchar(' ');
-}
-
-static void put_pattern(char *s, int c, synpat_T *spp, int attr)
-{
-  long n;
-  int mask;
-  int first;
-  static char *sepchars = "/+=-#@\"|'^&";
-  int i;
-
-  /* May have to write "matchgroup=group" */
-  if (last_matchgroup != spp->sp_syn_match_id) {
-    last_matchgroup = spp->sp_syn_match_id;
-    msg_puts_attr((char_u *)"matchgroup", attr);
-    msg_putchar('=');
-    if (last_matchgroup == 0)
-      msg_outtrans((char_u *)"NONE");
-    else
-      msg_outtrans(HL_TABLE()[last_matchgroup - 1].sg_name);
-    msg_putchar(' ');
-  }
-
-  /* output the name of the pattern and an '=' or ' ' */
-  msg_puts_attr((char_u *)s, attr);
-  msg_putchar(c);
-
-  /* output the pattern, in between a char that is not in the pattern */
-  for (i = 0; vim_strchr(spp->sp_pattern, sepchars[i]) != NULL; )
-    if (sepchars[++i] == NUL) {
-      i = 0;            /* no good char found, just use the first one */
-      break;
-    }
-  msg_putchar(sepchars[i]);
-  msg_outtrans(spp->sp_pattern);
-  msg_putchar(sepchars[i]);
-
-  /* output any pattern options */
-  first = TRUE;
-  for (i = 0; i < SPO_COUNT; ++i) {
-    mask = (1 << i);
-    if (spp->sp_off_flags & (mask + (mask << SPO_COUNT))) {
-      if (!first)
-        msg_putchar(',');               /* separate with commas */
-      msg_puts((char_u *)spo_name_tab[i]);
-      n = spp->sp_offsets[i];
-      if (i != SPO_LC_OFF) {
-        if (spp->sp_off_flags & mask)
-          msg_putchar('s');
-        else
-          msg_putchar('e');
-        if (n > 0)
-          msg_putchar('+');
-      }
-      if (n || i == SPO_LC_OFF)
-        msg_outnum(n);
-      first = FALSE;
-    }
-  }
-  msg_putchar(' ');
-}
-
-/*
- * List or clear the keywords for one syntax group.
- * Return TRUE if the header has been printed.
- */
-static int 
-syn_list_keywords (
-    int id,
-    hashtab_T *ht,
-    int did_header,                         /* header has already been printed */
-    int attr
-)
-{
-  int outlen;
-  hashitem_T  *hi;
-  keyentry_T  *kp;
-  int todo;
-  int prev_contained = 0;
-  short       *prev_next_list = NULL;
-  short       *prev_cont_in_list = NULL;
-  int prev_skipnl = 0;
-  int prev_skipwhite = 0;
-  int prev_skipempty = 0;
-
-  /*
-   * Unfortunately, this list of keywords is not sorted on alphabet but on
-   * hash value...
-   */
-  todo = (int)ht->ht_used;
-  for (hi = ht->ht_array; todo > 0 && !got_int; ++hi) {
-    if (!HASHITEM_EMPTY(hi)) {
-      --todo;
-      for (kp = HI2KE(hi); kp != NULL && !got_int; kp = kp->ke_next) {
-        if (kp->k_syn.id == id) {
-          if (prev_contained != (kp->flags & HL_CONTAINED)
-              || prev_skipnl != (kp->flags & HL_SKIPNL)
-              || prev_skipwhite != (kp->flags & HL_SKIPWHITE)
-              || prev_skipempty != (kp->flags & HL_SKIPEMPTY)
-              || prev_cont_in_list != kp->k_syn.cont_in_list
-              || prev_next_list != kp->next_list)
-            outlen = 9999;
-          else
-            outlen = (int)STRLEN(kp->keyword);
-          /* output "contained" and "nextgroup" on each line */
-          if (syn_list_header(did_header, outlen, id)) {
-            prev_contained = 0;
-            prev_next_list = NULL;
-            prev_cont_in_list = NULL;
-            prev_skipnl = 0;
-            prev_skipwhite = 0;
-            prev_skipempty = 0;
-          }
-          did_header = TRUE;
-          if (prev_contained != (kp->flags & HL_CONTAINED)) {
-            msg_puts_attr((char_u *)"contained", attr);
-            msg_putchar(' ');
-            prev_contained = (kp->flags & HL_CONTAINED);
-          }
-          if (kp->k_syn.cont_in_list != prev_cont_in_list) {
-            put_id_list((char_u *)"containedin",
-                kp->k_syn.cont_in_list, attr);
-            msg_putchar(' ');
-            prev_cont_in_list = kp->k_syn.cont_in_list;
-          }
-          if (kp->next_list != prev_next_list) {
-            put_id_list((char_u *)"nextgroup", kp->next_list, attr);
-            msg_putchar(' ');
-            prev_next_list = kp->next_list;
-            if (kp->flags & HL_SKIPNL) {
-              msg_puts_attr((char_u *)"skipnl", attr);
-              msg_putchar(' ');
-              prev_skipnl = (kp->flags & HL_SKIPNL);
-            }
-            if (kp->flags & HL_SKIPWHITE) {
-              msg_puts_attr((char_u *)"skipwhite", attr);
-              msg_putchar(' ');
-              prev_skipwhite = (kp->flags & HL_SKIPWHITE);
-            }
-            if (kp->flags & HL_SKIPEMPTY) {
-              msg_puts_attr((char_u *)"skipempty", attr);
-              msg_putchar(' ');
-              prev_skipempty = (kp->flags & HL_SKIPEMPTY);
-            }
-          }
-          msg_outtrans(kp->keyword);
-        }
-      }
-    }
-  }
-
-  return did_header;
-}
-
-static void syn_clear_keyword(int id, hashtab_T *ht)
-{
-  hashitem_T  *hi;
-  keyentry_T  *kp;
-  keyentry_T  *kp_prev;
-  keyentry_T  *kp_next;
-  int todo;
-
-  hash_lock(ht);
-  todo = (int)ht->ht_used;
-  for (hi = ht->ht_array; todo > 0; ++hi) {
-    if (!HASHITEM_EMPTY(hi)) {
-      --todo;
-      kp_prev = NULL;
-      for (kp = HI2KE(hi); kp != NULL; ) {
-        if (kp->k_syn.id == id) {
-          kp_next = kp->ke_next;
-          if (kp_prev == NULL) {
-            if (kp_next == NULL)
-              hash_remove(ht, hi);
-            else
-              hi->hi_key = KE2HIKEY(kp_next);
-          } else
-            kp_prev->ke_next = kp_next;
-          free(kp->next_list);
-          free(kp->k_syn.cont_in_list);
-          free(kp);
-          kp = kp_next;
-        } else {
-          kp_prev = kp;
-          kp = kp->ke_next;
-        }
-      }
-    }
-  }
-  hash_unlock(ht);
-}
-
-/*
- * Clear a whole keyword table.
- */
-static void clear_keywtab(hashtab_T *ht)
-{
-  hashitem_T  *hi;
-  int todo;
-  keyentry_T  *kp;
-  keyentry_T  *kp_next;
-
-  todo = (int)ht->ht_used;
-  for (hi = ht->ht_array; todo > 0; ++hi) {
-    if (!HASHITEM_EMPTY(hi)) {
-      --todo;
-      for (kp = HI2KE(hi); kp != NULL; kp = kp_next) {
-        kp_next = kp->ke_next;
-        free(kp->next_list);
-        free(kp->k_syn.cont_in_list);
-        free(kp);
-      }
-    }
-  }
-  hash_clear(ht);
-  hash_init(ht);
-}
-
-/*
- * Add a keyword to the list of keywords.
- */
-static void 
-add_keyword (
-    char_u *name,          /* name of keyword */
-    int id,                     /* group ID for this keyword */
-    int flags,                  /* flags for this keyword */
-    short *cont_in_list,     /* containedin for this keyword */
-    short *next_list,     /* nextgroup for this keyword */
-    int conceal_char
-)
-{
-  keyentry_T  *kp;
-  hashtab_T   *ht;
-  hashitem_T  *hi;
-  char_u      *name_ic;
-  long_u hash;
-  char_u name_folded[MAXKEYWLEN + 1];
-
-  if (curwin->w_s->b_syn_ic)
-    name_ic = str_foldcase(name, (int)STRLEN(name),
-        name_folded, MAXKEYWLEN + 1);
-  else
-    name_ic = name;
-  kp = (keyentry_T *)alloc((int)(sizeof(keyentry_T) + STRLEN(name_ic)));
-  STRCPY(kp->keyword, name_ic);
-  kp->k_syn.id = id;
-  kp->k_syn.inc_tag = current_syn_inc_tag;
-  kp->flags = flags;
-  kp->k_char = conceal_char;
-  kp->k_syn.cont_in_list = copy_id_list(cont_in_list);
-  if (cont_in_list != NULL)
-    curwin->w_s->b_syn_containedin = TRUE;
-  kp->next_list = copy_id_list(next_list);
-
-  if (curwin->w_s->b_syn_ic)
-    ht = &curwin->w_s->b_keywtab_ic;
-  else
-    ht = &curwin->w_s->b_keywtab;
-
-  hash = hash_hash(kp->keyword);
-  hi = hash_lookup(ht, kp->keyword, hash);
-  if (HASHITEM_EMPTY(hi)) {
-    /* new keyword, add to hashtable */
-    kp->ke_next = NULL;
-    hash_add_item(ht, hi, kp->keyword, hash);
-  } else {
-    /* keyword already exists, prepend to list */
-    kp->ke_next = HI2KE(hi);
-    hi->hi_key = KE2HIKEY(kp);
-  }
-}
-
-/*
- * Get the start and end of the group name argument.
- * Return a pointer to the first argument.
- * Return NULL if the end of the command was found instead of further args.
- */
-static char_u *
-get_group_name (
-    char_u *arg,               /* start of the argument */
-    char_u **name_end         /* pointer to end of the name */
-)
-{
-  char_u      *rest;
-
-  *name_end = skiptowhite(arg);
-  rest = skipwhite(*name_end);
-
-  /*
-   * Check if there are enough arguments.  The first argument may be a
-   * pattern, where '|' is allowed, so only check for NUL.
-   */
-  if (ends_excmd(*arg) || *rest == NUL)
-    return NULL;
-  return rest;
-}
-
-/*
- * Check for syntax command option arguments.
- * This can be called at any place in the list of arguments, and just picks
- * out the arguments that are known.  Can be called several times in a row to
- * collect all options in between other arguments.
- * Return a pointer to the next argument (which isn't an option).
- * Return NULL for any error;
- */
-static char_u *
-get_syn_options (
-    char_u *arg,                   /* next argument to be checked */
-    syn_opt_arg_T *opt,                   /* various things */
-    int *conceal_char
-)
-{
-  char_u      *gname_start, *gname;
-  int syn_id;
-  int len;
-  char        *p;
-  int i;
-  int fidx;
-  static struct flag {
-    char    *name;
-    int argtype;
-    int flags;
-  } flagtab[] = { {"cCoOnNtTaAiInNeEdD",      0,      HL_CONTAINED},
-                  {"oOnNeElLiInNeE",          0,      HL_ONELINE},
-                  {"kKeEeEpPeEnNdD",          0,      HL_KEEPEND},
-                  {"eExXtTeEnNdD",            0,      HL_EXTEND},
-                  {"eExXcClLuUdDeEnNlL",      0,      HL_EXCLUDENL},
-                  {"tTrRaAnNsSpPaArReEnNtT",  0,      HL_TRANSP},
-                  {"sSkKiIpPnNlL",            0,      HL_SKIPNL},
-                  {"sSkKiIpPwWhHiItTeE",      0,      HL_SKIPWHITE},
-                  {"sSkKiIpPeEmMpPtTyY",      0,      HL_SKIPEMPTY},
-                  {"gGrRoOuUpPhHeErReE",      0,      HL_SYNC_HERE},
-                  {"gGrRoOuUpPtThHeErReE",    0,      HL_SYNC_THERE},
-                  {"dDiIsSpPlLaAyY",          0,      HL_DISPLAY},
-                  {"fFoOlLdD",                0,      HL_FOLD},
-                  {"cCoOnNcCeEaAlL",          0,      HL_CONCEAL},
-                  {"cCoOnNcCeEaAlLeEnNdDsS",  0,      HL_CONCEALENDS},
-                  {"cCcChHaArR",              11,     0},
-                  {"cCoOnNtTaAiInNsS",        1,      0},
-                  {"cCoOnNtTaAiInNeEdDiInN",  2,      0},
-                  {"nNeExXtTgGrRoOuUpP",      3,      0},};
-  static char *first_letters = "cCoOkKeEtTsSgGdDfFnN";
-
-  if (arg == NULL)              /* already detected error */
-    return NULL;
-
-  if (curwin->w_s->b_syn_conceal)
-    opt->flags |= HL_CONCEAL;
-
-  for (;; ) {
-    /*
-     * This is used very often when a large number of keywords is defined.
-     * Need to skip quickly when no option name is found.
-     * Also avoid tolower(), it's slow.
-     */
-    if (strchr(first_letters, *arg) == NULL)
-      break;
-
-    for (fidx = sizeof(flagtab) / sizeof(struct flag); --fidx >= 0; ) {
-      p = flagtab[fidx].name;
-      for (i = 0, len = 0; p[i] != NUL; i += 2, ++len)
-        if (arg[len] != p[i] && arg[len] != p[i + 1])
-          break;
-      if (p[i] == NUL && (vim_iswhite(arg[len])
-                          || (flagtab[fidx].argtype > 0
-                              ? arg[len] == '='
-                              : ends_excmd(arg[len])))) {
-        if (opt->keyword
-            && (flagtab[fidx].flags == HL_DISPLAY
-                || flagtab[fidx].flags == HL_FOLD
-                || flagtab[fidx].flags == HL_EXTEND))
-          /* treat "display", "fold" and "extend" as a keyword */
-          fidx = -1;
-        break;
-      }
-    }
-    if (fidx < 0)           /* no match found */
-      break;
-
-    if (flagtab[fidx].argtype == 1) {
-      if (!opt->has_cont_list) {
-        EMSG(_("E395: contains argument not accepted here"));
-        return NULL;
-      }
-      if (get_id_list(&arg, 8, &opt->cont_list) == FAIL)
-        return NULL;
-    } else if (flagtab[fidx].argtype == 2)   {
-      if (get_id_list(&arg, 11, &opt->cont_in_list) == FAIL)
-        return NULL;
-    } else if (flagtab[fidx].argtype == 3)   {
-      if (get_id_list(&arg, 9, &opt->next_list) == FAIL)
-        return NULL;
-    } else if (flagtab[fidx].argtype == 11 && arg[5] == '=')   {
-      /* cchar=? */
-      if (has_mbyte) {
-        *conceal_char = mb_ptr2char(arg + 6);
-        arg += mb_ptr2len(arg + 6) - 1;
-      } else {
-        *conceal_char = arg[6];
-      }
-      if (!vim_isprintc_strict(*conceal_char)) {
-        EMSG(_("E844: invalid cchar value"));
-        return NULL;
-      }
-      arg = skipwhite(arg + 7);
-    } else {
-      opt->flags |= flagtab[fidx].flags;
-      arg = skipwhite(arg + len);
-
-      if (flagtab[fidx].flags == HL_SYNC_HERE
-          || flagtab[fidx].flags == HL_SYNC_THERE) {
-        if (opt->sync_idx == NULL) {
-          EMSG(_("E393: group[t]here not accepted here"));
-          return NULL;
-        }
-        gname_start = arg;
-        arg = skiptowhite(arg);
-        if (gname_start == arg)
-          return NULL;
-        gname = vim_strnsave(gname_start, (int)(arg - gname_start));
-        if (gname == NULL)
-          return NULL;
-        if (STRCMP(gname, "NONE") == 0)
-          *opt->sync_idx = NONE_IDX;
-        else {
-          syn_id = syn_name2id(gname);
-          for (i = curwin->w_s->b_syn_patterns.ga_len; --i >= 0; )
-            if (SYN_ITEMS(curwin->w_s)[i].sp_syn.id == syn_id
-                && SYN_ITEMS(curwin->w_s)[i].sp_type == SPTYPE_START) {
-              *opt->sync_idx = i;
-              break;
-            }
-          if (i < 0) {
-            EMSG2(_("E394: Didn't find region item for %s"), gname);
-            free(gname);
-            return NULL;
-          }
-        }
-
-        free(gname);
-        arg = skipwhite(arg);
-      } else if (flagtab[fidx].flags == HL_FOLD
-                 && foldmethodIsSyntax(curwin))
-        /* Need to update folds later. */
-        foldUpdateAll(curwin);
-    }
-  }
-
-  return arg;
-}
-
-/*
- * Adjustments to syntax item when declared in a ":syn include"'d file.
- * Set the contained flag, and if the item is not already contained, add it
- * to the specified top-level group, if any.
- */
-static void syn_incl_toplevel(int id, int *flagsp)
-{
-  if ((*flagsp & HL_CONTAINED) || curwin->w_s->b_syn_topgrp == 0)
-    return;
-  *flagsp |= HL_CONTAINED;
-  if (curwin->w_s->b_syn_topgrp >= SYNID_CLUSTER) {
-    /* We have to alloc this, because syn_combine_list() will free it. */
-    short       *grp_list = (short *)alloc((unsigned)(2 * sizeof(short)));
-    int tlg_id = curwin->w_s->b_syn_topgrp - SYNID_CLUSTER;
-
-    grp_list[0] = id;
-    grp_list[1] = 0;
-    syn_combine_list(&SYN_CLSTR(curwin->w_s)[tlg_id].scl_list, &grp_list,
-        CLUSTER_ADD);
-  }
-}
-
-/*
- * Handle ":syntax include [@{group-name}] filename" command.
- */
-static void syn_cmd_include(exarg_T *eap, int syncing)
-{
-  char_u      *arg = eap->arg;
-  int sgl_id = 1;
-  char_u      *group_name_end;
-  char_u      *rest;
-  char_u      *errormsg = NULL;
-  int prev_toplvl_grp;
-  int prev_syn_inc_tag;
-  int source = FALSE;
-
-  eap->nextcmd = find_nextcmd(arg);
-  if (eap->skip)
-    return;
-
-  if (arg[0] == '@') {
-    ++arg;
-    rest = get_group_name(arg, &group_name_end);
-    if (rest == NULL) {
-      EMSG((char_u *)_("E397: Filename required"));
-      return;
-    }
-    sgl_id = syn_check_cluster(arg, (int)(group_name_end - arg));
-    if (sgl_id == 0)
-      return;
-    /* separate_nextcmd() and expand_filename() depend on this */
-    eap->arg = rest;
-  }
-
-  /*
-   * Everything that's left, up to the next command, should be the
-   * filename to include.
-   */
-  eap->argt |= (XFILE | NOSPC);
-  separate_nextcmd(eap);
-  if (*eap->arg == '<' || *eap->arg == '$' || path_is_absolute_path(eap->arg)) {
-    /* For an absolute path, "$VIM/..." or "<sfile>.." we ":source" the
-     * file.  Need to expand the file name first.  In other cases
-     * ":runtime!" is used. */
-    source = TRUE;
-    if (expand_filename(eap, syn_cmdlinep, &errormsg) == FAIL) {
-      if (errormsg != NULL)
-        EMSG(errormsg);
-      return;
-    }
-  }
-
-  /*
-   * Save and restore the existing top-level grouplist id and ":syn
-   * include" tag around the actual inclusion.
-   */
-  if (running_syn_inc_tag >= MAX_SYN_INC_TAG) {
-    EMSG((char_u *)_("E847: Too many syntax includes"));
-    return;
-  }
-  prev_syn_inc_tag = current_syn_inc_tag;
-  current_syn_inc_tag = ++running_syn_inc_tag;
-  prev_toplvl_grp = curwin->w_s->b_syn_topgrp;
-  curwin->w_s->b_syn_topgrp = sgl_id;
-  if (source ? do_source(eap->arg, FALSE, DOSO_NONE) == FAIL
-      : source_runtime(eap->arg, TRUE) == FAIL)
-    EMSG2(_(e_notopen), eap->arg);
-  curwin->w_s->b_syn_topgrp = prev_toplvl_grp;
-  current_syn_inc_tag = prev_syn_inc_tag;
-}
-
-/*
- * Handle ":syntax keyword {group-name} [{option}] keyword .." command.
- */
-static void syn_cmd_keyword(exarg_T *eap, int syncing)
-{
-  char_u      *arg = eap->arg;
-  char_u      *group_name_end;
-  int syn_id;
-  char_u      *rest;
-  char_u      *keyword_copy = NULL;
-  char_u      *p;
-  char_u      *kw;
-  syn_opt_arg_T syn_opt_arg;
-  int cnt;
-  int conceal_char = NUL;
-
-  rest = get_group_name(arg, &group_name_end);
-
-  if (rest != NULL) {
-    syn_id = syn_check_group(arg, (int)(group_name_end - arg));
-    if (syn_id != 0)
-      /* allocate a buffer, for removing backslashes in the keyword */
-      keyword_copy = alloc((unsigned)STRLEN(rest) + 1);
-    syn_opt_arg.flags = 0;
-    syn_opt_arg.keyword = TRUE;
-    syn_opt_arg.sync_idx = NULL;
-    syn_opt_arg.has_cont_list = FALSE;
-    syn_opt_arg.cont_in_list = NULL;
-    syn_opt_arg.next_list = NULL;
-
-    /*
-     * The options given apply to ALL keywords, so all options must be
-     * found before keywords can be created.
-     * 1: collect the options and copy the keywords to keyword_copy.
-     */
-    cnt = 0;
-    p = keyword_copy;
-    for (; rest != NULL && !ends_excmd(*rest); rest = skipwhite(rest)) {
-      rest = get_syn_options(rest, &syn_opt_arg, &conceal_char);
-      if (rest == NULL || ends_excmd(*rest))
-        break;
-      /* Copy the keyword, removing backslashes, and add a NUL. */
-      while (*rest != NUL && !vim_iswhite(*rest)) {
-        if (*rest == '\\' && rest[1] != NUL)
-          ++rest;
-        *p++ = *rest++;
-      }
-      *p++ = NUL;
-      ++cnt;
-    }
-
-    if (!eap->skip) {
-      /* Adjust flags for use of ":syn include". */
-      syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
-
-      /*
-       * 2: Add an entry for each keyword.
-       */
-      for (kw = keyword_copy; --cnt >= 0; kw += STRLEN(kw) + 1) {
-        for (p = vim_strchr(kw, '[');; ) {
-          if (p != NULL)
-            *p = NUL;
-          add_keyword(kw, syn_id, syn_opt_arg.flags,
-              syn_opt_arg.cont_in_list,
-              syn_opt_arg.next_list, conceal_char);
-          if (p == NULL)
-            break;
-          if (p[1] == NUL) {
-            EMSG2(_("E789: Missing ']': %s"), kw);
-            kw = p + 2;                       /* skip over the NUL */
-            break;
-          }
-          if (p[1] == ']') {
-            kw = p + 1;                       /* skip over the "]" */
-            break;
-          }
-          if (has_mbyte) {
-            int l = (*mb_ptr2len)(p + 1);
-
-            memmove(p, p + 1, l);
-            p += l;
-          } else {
-            p[0] = p[1];
-            ++p;
-          }
-        }
-      }
-    }
-
-    free(keyword_copy);
-    free(syn_opt_arg.cont_in_list);
-    free(syn_opt_arg.next_list);
-  }
-
-  if (rest != NULL)
-    eap->nextcmd = check_nextcmd(rest);
-  else
-    EMSG2(_(e_invarg2), arg);
-
-  redraw_curbuf_later(SOME_VALID);
-  syn_stack_free_all(curwin->w_s);              /* Need to recompute all syntax. */
-}
-
-/*
- * Handle ":syntax match {name} [{options}] {pattern} [{options}]".
- *
- * Also ":syntax sync match {name} [[grouphere | groupthere] {group-name}] .."
- */
-static void 
-syn_cmd_match (
-    exarg_T *eap,
-    int syncing                        /* TRUE for ":syntax sync match .. " */
-)
-{
-  char_u      *arg = eap->arg;
-  char_u      *group_name_end;
-  char_u      *rest;
-  synpat_T item;                /* the item found in the line */
-  int syn_id;
-  int idx;
-  syn_opt_arg_T syn_opt_arg;
-  int sync_idx = 0;
-  int conceal_char = NUL;
-
-  /* Isolate the group name, check for validity */
-  rest = get_group_name(arg, &group_name_end);
-
-  /* Get options before the pattern */
-  syn_opt_arg.flags = 0;
-  syn_opt_arg.keyword = FALSE;
-  syn_opt_arg.sync_idx = syncing ? &sync_idx : NULL;
-  syn_opt_arg.has_cont_list = TRUE;
-  syn_opt_arg.cont_list = NULL;
-  syn_opt_arg.cont_in_list = NULL;
-  syn_opt_arg.next_list = NULL;
-  rest = get_syn_options(rest, &syn_opt_arg, &conceal_char);
-
-  /* get the pattern. */
-  init_syn_patterns();
-  memset(&item, 0, sizeof(item));
-  rest = get_syn_pattern(rest, &item);
-  if (vim_regcomp_had_eol() && !(syn_opt_arg.flags & HL_EXCLUDENL))
-    syn_opt_arg.flags |= HL_HAS_EOL;
-
-  /* Get options after the pattern */
-  rest = get_syn_options(rest, &syn_opt_arg, &conceal_char);
-
-  if (rest != NULL) {           /* all arguments are valid */
-    /*
-     * Check for trailing command and illegal trailing arguments.
-     */
-    eap->nextcmd = check_nextcmd(rest);
-    if (!ends_excmd(*rest) || eap->skip)
-      rest = NULL;
-    else {
-      ga_grow(&curwin->w_s->b_syn_patterns, 1);
-      if ((syn_id = syn_check_group(arg, (int)(group_name_end - arg))) != 0) {
-        syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
-        /*
-         * Store the pattern in the syn_items list
-         */
-        idx = curwin->w_s->b_syn_patterns.ga_len;
-        SYN_ITEMS(curwin->w_s)[idx] = item;
-        SYN_ITEMS(curwin->w_s)[idx].sp_syncing = syncing;
-        SYN_ITEMS(curwin->w_s)[idx].sp_type = SPTYPE_MATCH;
-        SYN_ITEMS(curwin->w_s)[idx].sp_syn.id = syn_id;
-        SYN_ITEMS(curwin->w_s)[idx].sp_syn.inc_tag = current_syn_inc_tag;
-        SYN_ITEMS(curwin->w_s)[idx].sp_flags = syn_opt_arg.flags;
-        SYN_ITEMS(curwin->w_s)[idx].sp_sync_idx = sync_idx;
-        SYN_ITEMS(curwin->w_s)[idx].sp_cont_list = syn_opt_arg.cont_list;
-        SYN_ITEMS(curwin->w_s)[idx].sp_syn.cont_in_list =
-          syn_opt_arg.cont_in_list;
-        SYN_ITEMS(curwin->w_s)[idx].sp_cchar = conceal_char;
-        if (syn_opt_arg.cont_in_list != NULL)
-          curwin->w_s->b_syn_containedin = TRUE;
-        SYN_ITEMS(curwin->w_s)[idx].sp_next_list = syn_opt_arg.next_list;
-        ++curwin->w_s->b_syn_patterns.ga_len;
-
-        /* remember that we found a match for syncing on */
-        if (syn_opt_arg.flags & (HL_SYNC_HERE|HL_SYNC_THERE))
-          curwin->w_s->b_syn_sync_flags |= SF_MATCH;
-        if (syn_opt_arg.flags & HL_FOLD)
-          ++curwin->w_s->b_syn_folditems;
-
-        redraw_curbuf_later(SOME_VALID);
-        syn_stack_free_all(curwin->w_s);          /* Need to recompute all syntax. */
-        return;           /* don't free the progs and patterns now */
-      }
-    }
-  }
-
-  /*
-   * Something failed, free the allocated memory.
-   */
-  vim_regfree(item.sp_prog);
-  free(item.sp_pattern);
-  free(syn_opt_arg.cont_list);
-  free(syn_opt_arg.cont_in_list);
-  free(syn_opt_arg.next_list);
-
-  if (rest == NULL)
-    EMSG2(_(e_invarg2), arg);
-}
-
-/*
- * Handle ":syntax region {group-name} [matchgroup={group-name}]
- *		start {start} .. [skip {skip}] end {end} .. [{options}]".
- */
-static void 
-syn_cmd_region (
-    exarg_T *eap,
-    int syncing                        /* TRUE for ":syntax sync region .." */
-)
-{
-  char_u              *arg = eap->arg;
-  char_u              *group_name_end;
-  char_u              *rest;                    /* next arg, NULL on error */
-  char_u              *key_end;
-  char_u              *key = NULL;
-  char_u              *p;
-  int item;
-#define ITEM_START          0
-#define ITEM_SKIP           1
-#define ITEM_END            2
-#define ITEM_MATCHGROUP     3
-  struct pat_ptr {
-    synpat_T        *pp_synp;                   /* pointer to syn_pattern */
-    int pp_matchgroup_id;                       /* matchgroup ID */
-    struct pat_ptr  *pp_next;                   /* pointer to next pat_ptr */
-  }                   *(pat_ptrs[3]);
-  /* patterns found in the line */
-  struct pat_ptr      *ppp;
-  struct pat_ptr      *ppp_next;
-  int pat_count = 0;                            /* nr of syn_patterns found */
-  int syn_id;
-  int matchgroup_id = 0;
-  int not_enough = FALSE;                       /* not enough arguments */
-  int illegal = FALSE;                          /* illegal arguments */
-  int success = FALSE;
-  int idx;
-  syn_opt_arg_T syn_opt_arg;
-  int conceal_char = NUL;
-
-  /* Isolate the group name, check for validity */
-  rest = get_group_name(arg, &group_name_end);
-
-  pat_ptrs[0] = NULL;
-  pat_ptrs[1] = NULL;
-  pat_ptrs[2] = NULL;
-
-  init_syn_patterns();
-
-  syn_opt_arg.flags = 0;
-  syn_opt_arg.keyword = FALSE;
-  syn_opt_arg.sync_idx = NULL;
-  syn_opt_arg.has_cont_list = TRUE;
-  syn_opt_arg.cont_list = NULL;
-  syn_opt_arg.cont_in_list = NULL;
-  syn_opt_arg.next_list = NULL;
-
-  /*
-   * get the options, patterns and matchgroup.
-   */
-  while (rest != NULL && !ends_excmd(*rest)) {
-    /* Check for option arguments */
-    rest = get_syn_options(rest, &syn_opt_arg, &conceal_char);
-    if (rest == NULL || ends_excmd(*rest))
-      break;
-
-    /* must be a pattern or matchgroup then */
-    key_end = rest;
-    while (*key_end && !vim_iswhite(*key_end) && *key_end != '=')
-      ++key_end;
-    free(key);
-    key = vim_strnsave_up(rest, (int)(key_end - rest));
-    if (key == NULL) {                          /* out of memory */
-      rest = NULL;
-      break;
-    }
-    if (STRCMP(key, "MATCHGROUP") == 0)
-      item = ITEM_MATCHGROUP;
-    else if (STRCMP(key, "START") == 0)
-      item = ITEM_START;
-    else if (STRCMP(key, "END") == 0)
-      item = ITEM_END;
-    else if (STRCMP(key, "SKIP") == 0) {
-      if (pat_ptrs[ITEM_SKIP] != NULL) {        /* one skip pattern allowed */
-        illegal = TRUE;
-        break;
-      }
-      item = ITEM_SKIP;
-    } else
-      break;
-    rest = skipwhite(key_end);
-    if (*rest != '=') {
-      rest = NULL;
-      EMSG2(_("E398: Missing '=': %s"), arg);
-      break;
-    }
-    rest = skipwhite(rest + 1);
-    if (*rest == NUL) {
-      not_enough = TRUE;
-      break;
-    }
-
-    if (item == ITEM_MATCHGROUP) {
-      p = skiptowhite(rest);
-      if ((p - rest == 4 && STRNCMP(rest, "NONE", 4) == 0) || eap->skip)
-        matchgroup_id = 0;
-      else {
-        matchgroup_id = syn_check_group(rest, (int)(p - rest));
-        if (matchgroup_id == 0) {
-          illegal = TRUE;
-          break;
-        }
-      }
-      rest = skipwhite(p);
-    } else {
-      /*
-       * Allocate room for a syn_pattern, and link it in the list of
-       * syn_patterns for this item, at the start (because the list is
-       * used from end to start).
-       */
-      ppp = (struct pat_ptr *)alloc((unsigned)sizeof(struct pat_ptr));
-      ppp->pp_next = pat_ptrs[item];
-      pat_ptrs[item] = ppp;
-      ppp->pp_synp = xcalloc(1, sizeof(synpat_T));
-
-      /*
-       * Get the syntax pattern and the following offset(s).
-       */
-      /* Enable the appropriate \z specials. */
-      if (item == ITEM_START)
-        reg_do_extmatch = REX_SET;
-      else if (item == ITEM_SKIP || item == ITEM_END)
-        reg_do_extmatch = REX_USE;
-      rest = get_syn_pattern(rest, ppp->pp_synp);
-      reg_do_extmatch = 0;
-      if (item == ITEM_END && vim_regcomp_had_eol()
-          && !(syn_opt_arg.flags & HL_EXCLUDENL))
-        ppp->pp_synp->sp_flags |= HL_HAS_EOL;
-      ppp->pp_matchgroup_id = matchgroup_id;
-      ++pat_count;
-    }
-  }
-  free(key);
-  if (illegal || not_enough)
-    rest = NULL;
-
-  /*
-   * Must have a "start" and "end" pattern.
-   */
-  if (rest != NULL && (pat_ptrs[ITEM_START] == NULL ||
-                       pat_ptrs[ITEM_END] == NULL)) {
-    not_enough = TRUE;
-    rest = NULL;
-  }
-
-  if (rest != NULL) {
-    /*
-     * Check for trailing garbage or command.
-     * If OK, add the item.
-     */
-    eap->nextcmd = check_nextcmd(rest);
-    if (!ends_excmd(*rest) || eap->skip)
-      rest = NULL;
-    else {
-      ga_grow(&(curwin->w_s->b_syn_patterns), pat_count);
-      if ((syn_id = syn_check_group(arg, (int)(group_name_end - arg))) != 0) {
-        syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
-        /*
-         * Store the start/skip/end in the syn_items list
-         */
-        idx = curwin->w_s->b_syn_patterns.ga_len;
-        for (item = ITEM_START; item <= ITEM_END; ++item) {
-          for (ppp = pat_ptrs[item]; ppp != NULL; ppp = ppp->pp_next) {
-            SYN_ITEMS(curwin->w_s)[idx] = *(ppp->pp_synp);
-            SYN_ITEMS(curwin->w_s)[idx].sp_syncing = syncing;
-            SYN_ITEMS(curwin->w_s)[idx].sp_type =
-              (item == ITEM_START) ? SPTYPE_START :
-              (item == ITEM_SKIP) ? SPTYPE_SKIP : SPTYPE_END;
-            SYN_ITEMS(curwin->w_s)[idx].sp_flags |= syn_opt_arg.flags;
-            SYN_ITEMS(curwin->w_s)[idx].sp_syn.id = syn_id;
-            SYN_ITEMS(curwin->w_s)[idx].sp_syn.inc_tag =
-              current_syn_inc_tag;
-            SYN_ITEMS(curwin->w_s)[idx].sp_syn_match_id =
-              ppp->pp_matchgroup_id;
-            SYN_ITEMS(curwin->w_s)[idx].sp_cchar = conceal_char;
-            if (item == ITEM_START) {
-              SYN_ITEMS(curwin->w_s)[idx].sp_cont_list =
-                syn_opt_arg.cont_list;
-              SYN_ITEMS(curwin->w_s)[idx].sp_syn.cont_in_list =
-                syn_opt_arg.cont_in_list;
-              if (syn_opt_arg.cont_in_list != NULL)
-                curwin->w_s->b_syn_containedin = TRUE;
-              SYN_ITEMS(curwin->w_s)[idx].sp_next_list =
-                syn_opt_arg.next_list;
-            }
-            ++curwin->w_s->b_syn_patterns.ga_len;
-            ++idx;
-            if (syn_opt_arg.flags & HL_FOLD)
-              ++curwin->w_s->b_syn_folditems;
-          }
-        }
-
-        redraw_curbuf_later(SOME_VALID);
-        syn_stack_free_all(curwin->w_s);          /* Need to recompute all syntax. */
-        success = TRUE;               /* don't free the progs and patterns now */
-      }
-    }
-  }
-
-  /*
-   * Free the allocated memory.
-   */
-  for (item = ITEM_START; item <= ITEM_END; ++item)
-    for (ppp = pat_ptrs[item]; ppp != NULL; ppp = ppp_next) {
-      if (!success) {
-        vim_regfree(ppp->pp_synp->sp_prog);
-        free(ppp->pp_synp->sp_pattern);
-      }
-      free(ppp->pp_synp);
-      ppp_next = ppp->pp_next;
-      free(ppp);
-    }
-
-  if (!success) {
-    free(syn_opt_arg.cont_list);
-    free(syn_opt_arg.cont_in_list);
-    free(syn_opt_arg.next_list);
-    if (not_enough)
-      EMSG2(_("E399: Not enough arguments: syntax region %s"), arg);
-    else if (illegal || rest == NULL)
-      EMSG2(_(e_invarg2), arg);
-  }
-}
-
-/*
- * A simple syntax group ID comparison function suitable for use in qsort()
- */
-static int syn_compare_stub(const void *v1, const void *v2)
-{
-  const short *s1 = v1;
-  const short *s2 = v2;
-
-  return *s1 > *s2 ? 1 : *s1 < *s2 ? -1 : 0;
-}
-
-/*
- * Combines lists of syntax clusters.
- * *clstr1 and *clstr2 must both be allocated memory; they will be consumed.
- */
-static void syn_combine_list(short **clstr1, short **clstr2, int list_op)
-{
-  int count1 = 0;
-  int count2 = 0;
-  short       *g1;
-  short       *g2;
-  short       *clstr = NULL;
-  int count;
-  int round;
-
-  /*
-   * Handle degenerate cases.
-   */
-  if (*clstr2 == NULL)
-    return;
-  if (*clstr1 == NULL || list_op == CLUSTER_REPLACE) {
-    if (list_op == CLUSTER_REPLACE)
-      free(*clstr1);
-    if (list_op == CLUSTER_REPLACE || list_op == CLUSTER_ADD)
-      *clstr1 = *clstr2;
-    else
-      free(*clstr2);
-    return;
-  }
-
-  for (g1 = *clstr1; *g1; g1++)
-    ++count1;
-  for (g2 = *clstr2; *g2; g2++)
-    ++count2;
-
-  /*
-   * For speed purposes, sort both lists.
-   */
-  qsort(*clstr1, (size_t)count1, sizeof(short), syn_compare_stub);
-  qsort(*clstr2, (size_t)count2, sizeof(short), syn_compare_stub);
-
-  /*
-   * We proceed in two passes; in round 1, we count the elements to place
-   * in the new list, and in round 2, we allocate and populate the new
-   * list.  For speed, we use a mergesort-like method, adding the smaller
-   * of the current elements in each list to the new list.
-   */
-  for (round = 1; round <= 2; round++) {
-    g1 = *clstr1;
-    g2 = *clstr2;
-    count = 0;
-
-    /*
-     * First, loop through the lists until one of them is empty.
-     */
-    while (*g1 && *g2) {
-      /*
-       * We always want to add from the first list.
-       */
-      if (*g1 < *g2) {
-        if (round == 2)
-          clstr[count] = *g1;
-        count++;
-        g1++;
-        continue;
-      }
-      /*
-       * We only want to add from the second list if we're adding the
-       * lists.
-       */
-      if (list_op == CLUSTER_ADD) {
-        if (round == 2)
-          clstr[count] = *g2;
-        count++;
-      }
-      if (*g1 == *g2)
-        g1++;
-      g2++;
-    }
-
-    /*
-     * Now add the leftovers from whichever list didn't get finished
-     * first.  As before, we only want to add from the second list if
-     * we're adding the lists.
-     */
-    for (; *g1; g1++, count++)
-      if (round == 2)
-        clstr[count] = *g1;
-    if (list_op == CLUSTER_ADD)
-      for (; *g2; g2++, count++)
-        if (round == 2)
-          clstr[count] = *g2;
-
-    if (round == 1) {
-      /*
-       * If the group ended up empty, we don't need to allocate any
-       * space for it.
-       */
-      if (count == 0) {
-        clstr = NULL;
-        break;
-      }
-      clstr = (short *)alloc((unsigned)((count + 1) * sizeof(short)));
-      clstr[count] = 0;
-    }
-  }
-
-  /*
-   * Finally, put the new list in place.
-   */
-  free(*clstr1);
-  free(*clstr2);
-  *clstr1 = clstr;
-}
-
-/*
- * Lookup a syntax cluster name and return it's ID.
- * If it is not found, 0 is returned.
- */
-static int syn_scl_name2id(char_u *name)
-{
-  int i;
-  char_u      *name_u;
-
-  /* Avoid using stricmp() too much, it's slow on some systems */
-  name_u = vim_strsave_up(name);
-  if (name_u == NULL)
-    return 0;
-  for (i = curwin->w_s->b_syn_clusters.ga_len; --i >= 0; )
-    if (SYN_CLSTR(curwin->w_s)[i].scl_name_u != NULL
-        && STRCMP(name_u, SYN_CLSTR(curwin->w_s)[i].scl_name_u) == 0)
-      break;
-  free(name_u);
-  return i < 0 ? 0 : i + SYNID_CLUSTER;
-}
-
-/*
- * Like syn_scl_name2id(), but take a pointer + length argument.
- */
-static int syn_scl_namen2id(char_u *linep, int len)
-{
-  char_u  *name;
-  int id = 0;
-
-  name = vim_strnsave(linep, len);
-  if (name != NULL) {
-    id = syn_scl_name2id(name);
-    free(name);
-  }
-  return id;
-}
-
-/*
- * Find syntax cluster name in the table and return it's ID.
- * The argument is a pointer to the name and the length of the name.
- * If it doesn't exist yet, a new entry is created.
- * Return 0 for failure.
- */
-static int syn_check_cluster(char_u *pp, int len)
-{
-  int id;
-  char_u      *name;
-
-  name = vim_strnsave(pp, len);
-  if (name == NULL)
-    return 0;
-
-  id = syn_scl_name2id(name);
-  if (id == 0)                          /* doesn't exist yet */
-    id = syn_add_cluster(name);
-  else
-    free(name);
-  return id;
-}
-
-/*
- * Add new syntax cluster and return it's ID.
- * "name" must be an allocated string, it will be consumed.
- * Return 0 for failure.
- */
-static int syn_add_cluster(char_u *name)
-{
-  int len;
-
-  /*
-   * First call for this growarray: init growing array.
-   */
-  if (curwin->w_s->b_syn_clusters.ga_data == NULL) {
-    curwin->w_s->b_syn_clusters.ga_itemsize = sizeof(syn_cluster_T);
-    curwin->w_s->b_syn_clusters.ga_growsize = 10;
-  }
-
-  len = curwin->w_s->b_syn_clusters.ga_len;
-  if (len >= MAX_CLUSTER_ID) {
-    EMSG((char_u *)_("E848: Too many syntax clusters"));
-    free(name);
-    return 0;
-  }
-
-  /*
-   * Make room for at least one other cluster entry.
-   */
-  ga_grow(&curwin->w_s->b_syn_clusters, 1);
-
-  memset(&(SYN_CLSTR(curwin->w_s)[len]), 0, sizeof(syn_cluster_T));
-  SYN_CLSTR(curwin->w_s)[len].scl_name = name;
-  SYN_CLSTR(curwin->w_s)[len].scl_name_u = vim_strsave_up(name);
-  SYN_CLSTR(curwin->w_s)[len].scl_list = NULL;
-  ++curwin->w_s->b_syn_clusters.ga_len;
-
-  if (STRICMP(name, "Spell") == 0)
-    curwin->w_s->b_spell_cluster_id = len + SYNID_CLUSTER;
-  if (STRICMP(name, "NoSpell") == 0)
-    curwin->w_s->b_nospell_cluster_id = len + SYNID_CLUSTER;
-
-  return len + SYNID_CLUSTER;
-}
-
-/*
- * Handle ":syntax cluster {cluster-name} [contains={groupname},..]
- *		[add={groupname},..] [remove={groupname},..]".
- */
-static void syn_cmd_cluster(exarg_T *eap, int syncing)
-{
-  char_u      *arg = eap->arg;
-  char_u      *group_name_end;
-  char_u      *rest;
-  int scl_id;
-  short       *clstr_list;
-  int got_clstr = FALSE;
-  int opt_len;
-  int list_op;
-
-  eap->nextcmd = find_nextcmd(arg);
-  if (eap->skip)
-    return;
-
-  rest = get_group_name(arg, &group_name_end);
-
-  if (rest != NULL) {
-    scl_id = syn_check_cluster(arg, (int)(group_name_end - arg));
-    if (scl_id == 0)
-      return;
-    scl_id -= SYNID_CLUSTER;
-
-    for (;; ) {
-      if (STRNICMP(rest, "add", 3) == 0
-          && (vim_iswhite(rest[3]) || rest[3] == '=')) {
-        opt_len = 3;
-        list_op = CLUSTER_ADD;
-      } else if (STRNICMP(rest, "remove", 6) == 0
-                 && (vim_iswhite(rest[6]) || rest[6] == '=')) {
-        opt_len = 6;
-        list_op = CLUSTER_SUBTRACT;
-      } else if (STRNICMP(rest, "contains", 8) == 0
-                 && (vim_iswhite(rest[8]) || rest[8] == '=')) {
-        opt_len = 8;
-        list_op = CLUSTER_REPLACE;
-      } else
-        break;
-
-      clstr_list = NULL;
-      if (get_id_list(&rest, opt_len, &clstr_list) == FAIL) {
-        EMSG2(_(e_invarg2), rest);
-        break;
-      }
-      syn_combine_list(&SYN_CLSTR(curwin->w_s)[scl_id].scl_list,
-          &clstr_list, list_op);
-      got_clstr = TRUE;
-    }
-
-    if (got_clstr) {
-      redraw_curbuf_later(SOME_VALID);
-      syn_stack_free_all(curwin->w_s);          /* Need to recompute all. */
-    }
-  }
-
-  if (!got_clstr)
-    EMSG(_("E400: No cluster specified"));
-  if (rest == NULL || !ends_excmd(*rest))
-    EMSG2(_(e_invarg2), arg);
-}
-
-/*
- * On first call for current buffer: Init growing array.
- */
-static void init_syn_patterns(void)
-{
-  curwin->w_s->b_syn_patterns.ga_itemsize = sizeof(synpat_T);
-  curwin->w_s->b_syn_patterns.ga_growsize = 10;
-}
-
-/*
- * Get one pattern for a ":syntax match" or ":syntax region" command.
- * Stores the pattern and program in a synpat_T.
- * Returns a pointer to the next argument, or NULL in case of an error.
- */
-static char_u *get_syn_pattern(char_u *arg, synpat_T *ci)
-{
-  char_u      *end;
-  int         *p;
-  int idx;
-  char_u      *cpo_save;
-
-  /* need at least three chars */
-  if (arg == NULL || arg[1] == NUL || arg[2] == NUL)
-    return NULL;
-
-  end = skip_regexp(arg + 1, *arg, TRUE, NULL);
-  if (*end != *arg) {                       /* end delimiter not found */
-    EMSG2(_("E401: Pattern delimiter not found: %s"), arg);
-    return NULL;
-  }
-  /* store the pattern and compiled regexp program */
-  if ((ci->sp_pattern = vim_strnsave(arg + 1, (int)(end - arg - 1))) == NULL)
-    return NULL;
-
-  /* Make 'cpoptions' empty, to avoid the 'l' flag */
-  cpo_save = p_cpo;
-  p_cpo = (char_u *)"";
-  ci->sp_prog = vim_regcomp(ci->sp_pattern, RE_MAGIC);
-  p_cpo = cpo_save;
-
-  if (ci->sp_prog == NULL)
-    return NULL;
-  ci->sp_ic = curwin->w_s->b_syn_ic;
-  syn_clear_time(&ci->sp_time);
-
-  /*
-   * Check for a match, highlight or region offset.
-   */
-  ++end;
-  do {
-    for (idx = SPO_COUNT; --idx >= 0; )
-      if (STRNCMP(end, spo_name_tab[idx], 3) == 0)
-        break;
-    if (idx >= 0) {
-      p = &(ci->sp_offsets[idx]);
-      if (idx != SPO_LC_OFF)
-        switch (end[3]) {
-        case 's':   break;
-        case 'b':   break;
-        case 'e':   idx += SPO_COUNT; break;
-        default:    idx = -1; break;
-        }
-      if (idx >= 0) {
-        ci->sp_off_flags |= (1 << idx);
-        if (idx == SPO_LC_OFF) {            /* lc=99 */
-          end += 3;
-          *p = getdigits(&end);
-
-          /* "lc=" offset automatically sets "ms=" offset */
-          if (!(ci->sp_off_flags & (1 << SPO_MS_OFF))) {
-            ci->sp_off_flags |= (1 << SPO_MS_OFF);
-            ci->sp_offsets[SPO_MS_OFF] = *p;
-          }
-        } else {                          /* yy=x+99 */
-          end += 4;
-          if (*end == '+') {
-            ++end;
-            *p = getdigits(&end);                       /* positive offset */
-          } else if (*end == '-')   {
-            ++end;
-            *p = -getdigits(&end);                      /* negative offset */
-          }
-        }
-        if (*end != ',')
-          break;
-        ++end;
-      }
-    }
-  } while (idx >= 0);
-
-  if (!ends_excmd(*end) && !vim_iswhite(*end)) {
-    EMSG2(_("E402: Garbage after pattern: %s"), arg);
-    return NULL;
-  }
-  return skipwhite(end);
-}
-
-/*
- * Handle ":syntax sync .." command.
- */
-static void syn_cmd_sync(exarg_T *eap, int syncing)
-{
-  char_u      *arg_start = eap->arg;
-  char_u      *arg_end;
-  char_u      *key = NULL;
-  char_u      *next_arg;
-  int illegal = FALSE;
-  int finished = FALSE;
-  long n;
-  char_u      *cpo_save;
-
-  if (ends_excmd(*arg_start)) {
-    syn_cmd_list(eap, TRUE);
-    return;
-  }
-
-  while (!ends_excmd(*arg_start)) {
-    arg_end = skiptowhite(arg_start);
-    next_arg = skipwhite(arg_end);
-    free(key);
-    key = vim_strnsave_up(arg_start, (int)(arg_end - arg_start));
-    if (STRCMP(key, "CCOMMENT") == 0) {
-      if (!eap->skip)
-        curwin->w_s->b_syn_sync_flags |= SF_CCOMMENT;
-      if (!ends_excmd(*next_arg)) {
-        arg_end = skiptowhite(next_arg);
-        if (!eap->skip)
-          curwin->w_s->b_syn_sync_id = syn_check_group(next_arg,
-              (int)(arg_end - next_arg));
-        next_arg = skipwhite(arg_end);
-      } else if (!eap->skip)
-        curwin->w_s->b_syn_sync_id = syn_name2id((char_u *)"Comment");
-    } else if (  STRNCMP(key, "LINES", 5) == 0
-                 || STRNCMP(key, "MINLINES", 8) == 0
-                 || STRNCMP(key, "MAXLINES", 8) == 0
-                 || STRNCMP(key, "LINEBREAKS", 10) == 0) {
-      if (key[4] == 'S')
-        arg_end = key + 6;
-      else if (key[0] == 'L')
-        arg_end = key + 11;
-      else
-        arg_end = key + 9;
-      if (arg_end[-1] != '=' || !VIM_ISDIGIT(*arg_end)) {
-        illegal = TRUE;
-        break;
-      }
-      n = getdigits(&arg_end);
-      if (!eap->skip) {
-        if (key[4] == 'B')
-          curwin->w_s->b_syn_sync_linebreaks = n;
-        else if (key[1] == 'A')
-          curwin->w_s->b_syn_sync_maxlines = n;
-        else
-          curwin->w_s->b_syn_sync_minlines = n;
-      }
-    } else if (STRCMP(key, "FROMSTART") == 0)   {
-      if (!eap->skip) {
-        curwin->w_s->b_syn_sync_minlines = MAXLNUM;
-        curwin->w_s->b_syn_sync_maxlines = 0;
-      }
-    } else if (STRCMP(key, "LINECONT") == 0)   {
-      if (curwin->w_s->b_syn_linecont_pat != NULL) {
-        EMSG(_("E403: syntax sync: line continuations pattern specified twice"));
-        finished = TRUE;
-        break;
-      }
-      arg_end = skip_regexp(next_arg + 1, *next_arg, TRUE, NULL);
-      if (*arg_end != *next_arg) {          /* end delimiter not found */
-        illegal = TRUE;
-        break;
-      }
-
-      if (!eap->skip) {
-        /* store the pattern and compiled regexp program */
-        if ((curwin->w_s->b_syn_linecont_pat = vim_strnsave(next_arg + 1,
-                 (int)(arg_end - next_arg - 1))) == NULL) {
-          finished = TRUE;
-          break;
-        }
-        curwin->w_s->b_syn_linecont_ic = curwin->w_s->b_syn_ic;
-
-        /* Make 'cpoptions' empty, to avoid the 'l' flag */
-        cpo_save = p_cpo;
-        p_cpo = (char_u *)"";
-        curwin->w_s->b_syn_linecont_prog =
-          vim_regcomp(curwin->w_s->b_syn_linecont_pat, RE_MAGIC);
-        p_cpo = cpo_save;
-        syn_clear_time(&curwin->w_s->b_syn_linecont_time);
-
-        if (curwin->w_s->b_syn_linecont_prog == NULL) {
-          free(curwin->w_s->b_syn_linecont_pat);
-          curwin->w_s->b_syn_linecont_pat = NULL;
-          finished = TRUE;
-          break;
-        }
-      }
-      next_arg = skipwhite(arg_end + 1);
-    } else {
-      eap->arg = next_arg;
-      if (STRCMP(key, "MATCH") == 0)
-        syn_cmd_match(eap, TRUE);
-      else if (STRCMP(key, "REGION") == 0)
-        syn_cmd_region(eap, TRUE);
-      else if (STRCMP(key, "CLEAR") == 0)
-        syn_cmd_clear(eap, TRUE);
-      else
-        illegal = TRUE;
-      finished = TRUE;
-      break;
-    }
-    arg_start = next_arg;
-  }
-  free(key);
-  if (illegal)
-    EMSG2(_("E404: Illegal arguments: %s"), arg_start);
-  else if (!finished) {
-    eap->nextcmd = check_nextcmd(arg_start);
-    redraw_curbuf_later(SOME_VALID);
-    syn_stack_free_all(curwin->w_s);            /* Need to recompute all syntax. */
-  }
-}
-
-/*
- * Convert a line of highlight group names into a list of group ID numbers.
- * "arg" should point to the "contains" or "nextgroup" keyword.
- * "arg" is advanced to after the last group name.
- * Careful: the argument is modified (NULs added).
- * returns FAIL for some error, OK for success.
- */
-static int 
-get_id_list (
-    char_u **arg,
-    int keylen,                     /* length of keyword */
-    short **list             /* where to store the resulting list, if not
-                                   NULL, the list is silently skipped! */
-)
-{
-  char_u      *p = NULL;
-  char_u      *end;
-  int round;
-  int count;
-  int total_count = 0;
-  short       *retval = NULL;
-  char_u      *name;
-  regmatch_T regmatch;
-  int id;
-  int i;
-  int failed = FALSE;
-
-  /*
-   * We parse the list twice:
-   * round == 1: count the number of items, allocate the array.
-   * round == 2: fill the array with the items.
-   * In round 1 new groups may be added, causing the number of items to
-   * grow when a regexp is used.  In that case round 1 is done once again.
-   */
-  for (round = 1; round <= 2; ++round) {
-    /*
-     * skip "contains"
-     */
-    p = skipwhite(*arg + keylen);
-    if (*p != '=') {
-      EMSG2(_("E405: Missing equal sign: %s"), *arg);
-      break;
-    }
-    p = skipwhite(p + 1);
-    if (ends_excmd(*p)) {
-      EMSG2(_("E406: Empty argument: %s"), *arg);
-      break;
-    }
-
-    /*
-     * parse the arguments after "contains"
-     */
-    count = 0;
-    while (!ends_excmd(*p)) {
-      for (end = p; *end && !vim_iswhite(*end) && *end != ','; ++end)
-        ;
-      name = alloc((int)(end - p + 3));             /* leave room for "^$" */
-      vim_strncpy(name + 1, p, end - p);
-      if (       STRCMP(name + 1, "ALLBUT") == 0
-                 || STRCMP(name + 1, "ALL") == 0
-                 || STRCMP(name + 1, "TOP") == 0
-                 || STRCMP(name + 1, "CONTAINED") == 0) {
-        if (TOUPPER_ASC(**arg) != 'C') {
-          EMSG2(_("E407: %s not allowed here"), name + 1);
-          failed = TRUE;
-          free(name);
-          break;
-        }
-        if (count != 0) {
-          EMSG2(_("E408: %s must be first in contains list"), name + 1);
-          failed = TRUE;
-          free(name);
-          break;
-        }
-        if (name[1] == 'A')
-          id = SYNID_ALLBUT;
-        else if (name[1] == 'T')
-          id = SYNID_TOP;
-        else
-          id = SYNID_CONTAINED;
-        id += current_syn_inc_tag;
-      } else if (name[1] == '@')   {
-        id = syn_check_cluster(name + 2, (int)(end - p - 1));
-      } else {
-        /*
-         * Handle full group name.
-         */
-        if (vim_strpbrk(name + 1, (char_u *)"\\.*^$~[") == NULL)
-          id = syn_check_group(name + 1, (int)(end - p));
-        else {
-          /*
-           * Handle match of regexp with group names.
-           */
-          *name = '^';
-          STRCAT(name, "$");
-          regmatch.regprog = vim_regcomp(name, RE_MAGIC);
-          if (regmatch.regprog == NULL) {
-            failed = TRUE;
-            free(name);
-            break;
-          }
-
-          regmatch.rm_ic = TRUE;
-          id = 0;
-          for (i = highlight_ga.ga_len; --i >= 0; ) {
-            if (vim_regexec(&regmatch, HL_TABLE()[i].sg_name,
-                    (colnr_T)0)) {
-              if (round == 2) {
-                /* Got more items than expected; can happen
-                 * when adding items that match:
-                 * "contains=a.*b,axb".
-                 * Go back to first round */
-                if (count >= total_count) {
-                  free(retval);
-                  round = 1;
-                } else
-                  retval[count] = i + 1;
-              }
-              ++count;
-              id = -1;                      /* remember that we found one */
-            }
-          }
-          vim_regfree(regmatch.regprog);
-        }
-      }
-      free(name);
-      if (id == 0) {
-        EMSG2(_("E409: Unknown group name: %s"), p);
-        failed = TRUE;
-        break;
-      }
-      if (id > 0) {
-        if (round == 2) {
-          /* Got more items than expected, go back to first round */
-          if (count >= total_count) {
-            free(retval);
-            round = 1;
-          } else
-            retval[count] = id;
-        }
-        ++count;
-      }
-      p = skipwhite(end);
-      if (*p != ',')
-        break;
-      p = skipwhite(p + 1);             /* skip comma in between arguments */
-    }
-    if (failed)
-      break;
-    if (round == 1) {
-      retval = (short *)alloc((unsigned)((count + 1) * sizeof(short)));
-      retval[count] = 0;            /* zero means end of the list */
-      total_count = count;
-    }
-  }
-
-  *arg = p;
-  if (failed || retval == NULL) {
-    free(retval);
-    return FAIL;
-  }
-
-  if (*list == NULL)
-    *list = retval;
-  else
-    free(retval);           /* list already found, don't overwrite it */
-
-  return OK;
-}
-
-/*
- * Make a copy of an ID list.
- */
-static short *copy_id_list(short *list)
-{
-  int len;
-  int count;
-  short   *retval;
-
-  if (list == NULL)
-    return NULL;
-
-  for (count = 0; list[count]; ++count)
-    ;
-  len = (count + 1) * sizeof(short);
-  retval = (short *)alloc((unsigned)len);
-  memmove(retval, list, (size_t)len);
-
-  return retval;
-}
-
-/*
- * Check if syntax group "ssp" is in the ID list "list" of "cur_si".
- * "cur_si" can be NULL if not checking the "containedin" list.
- * Used to check if a syntax item is in the "contains" or "nextgroup" list of
- * the current item.
- * This function is called very often, keep it fast!!
- */
-static int 
-in_id_list (
-    stateitem_T *cur_si,            /* current item or NULL */
-    short *list,              /* id list */
-    struct sp_syn *ssp,             /* group id and ":syn include" tag of group */
-    int contained                  /* group id is contained */
-)
-{
-  int retval;
-  short       *scl_list;
-  short item;
-  short id = ssp->id;
-  static int depth = 0;
-  int r;
-
-  /* If ssp has a "containedin" list and "cur_si" is in it, return TRUE. */
-  if (cur_si != NULL && ssp->cont_in_list != NULL
-      && !(cur_si->si_flags & HL_MATCH)) {
-    /* Ignore transparent items without a contains argument.  Double check
-     * that we don't go back past the first one. */
-    while ((cur_si->si_flags & HL_TRANS_CONT)
-           && cur_si > (stateitem_T *)(current_state.ga_data))
-      --cur_si;
-    /* cur_si->si_idx is -1 for keywords, these never contain anything. */
-    if (cur_si->si_idx >= 0 && in_id_list(NULL, ssp->cont_in_list,
-            &(SYN_ITEMS(syn_block)[cur_si->si_idx].sp_syn),
-            SYN_ITEMS(syn_block)[cur_si->si_idx].sp_flags & HL_CONTAINED))
-      return TRUE;
-  }
-
-  if (list == NULL)
-    return FALSE;
-
-  /*
-   * If list is ID_LIST_ALL, we are in a transparent item that isn't
-   * inside anything.  Only allow not-contained groups.
-   */
-  if (list == ID_LIST_ALL)
-    return !contained;
-
-  /*
-   * If the first item is "ALLBUT", return TRUE if "id" is NOT in the
-   * contains list.  We also require that "id" is at the same ":syn include"
-   * level as the list.
-   */
-  item = *list;
-  if (item >= SYNID_ALLBUT && item < SYNID_CLUSTER) {
-    if (item < SYNID_TOP) {
-      /* ALL or ALLBUT: accept all groups in the same file */
-      if (item - SYNID_ALLBUT != ssp->inc_tag)
-        return FALSE;
-    } else if (item < SYNID_CONTAINED)   {
-      /* TOP: accept all not-contained groups in the same file */
-      if (item - SYNID_TOP != ssp->inc_tag || contained)
-        return FALSE;
-    } else {
-      /* CONTAINED: accept all contained groups in the same file */
-      if (item - SYNID_CONTAINED != ssp->inc_tag || !contained)
-        return FALSE;
-    }
-    item = *++list;
-    retval = FALSE;
-  } else
-    retval = TRUE;
-
-  /*
-   * Return "retval" if id is in the contains list.
-   */
-  while (item != 0) {
-    if (item == id)
-      return retval;
-    if (item >= SYNID_CLUSTER) {
-      scl_list = SYN_CLSTR(syn_block)[item - SYNID_CLUSTER].scl_list;
-      /* restrict recursiveness to 30 to avoid an endless loop for a
-       * cluster that includes itself (indirectly) */
-      if (scl_list != NULL && depth < 30) {
-        ++depth;
-        r = in_id_list(NULL, scl_list, ssp, contained);
-        --depth;
-        if (r)
-          return retval;
-      }
-    }
-    item = *++list;
-  }
-  return !retval;
-}
-
-struct subcommand {
-  char    *name;                                /* subcommand name */
-  void    (*func)(exarg_T *, int);              /* function to call */
-};
-
-static struct subcommand subcommands[] =
-{
-  {"case",            syn_cmd_case},
-  {"clear",           syn_cmd_clear},
-  {"cluster",         syn_cmd_cluster},
-  {"conceal",         syn_cmd_conceal},
-  {"enable",          syn_cmd_enable},
-  {"include",         syn_cmd_include},
-  {"keyword",         syn_cmd_keyword},
-  {"list",            syn_cmd_list},
-  {"manual",          syn_cmd_manual},
-  {"match",           syn_cmd_match},
-  {"on",              syn_cmd_on},
-  {"off",             syn_cmd_off},
-  {"region",          syn_cmd_region},
-  {"reset",           syn_cmd_reset},
-  {"spell",           syn_cmd_spell},
-  {"sync",            syn_cmd_sync},
-  {"",                syn_cmd_list},
-  {NULL, NULL}
-};
-
-/*
- * ":syntax".
- * This searches the subcommands[] table for the subcommand name, and calls a
- * syntax_subcommand() function to do the rest.
- */
-void ex_syntax(exarg_T *eap)
-{
-  char_u      *arg = eap->arg;
-  char_u      *subcmd_end;
-  char_u      *subcmd_name;
-  int i;
-
-  syn_cmdlinep = eap->cmdlinep;
-
-  /* isolate subcommand name */
-  for (subcmd_end = arg; ASCII_ISALPHA(*subcmd_end); ++subcmd_end)
-    ;
-  subcmd_name = vim_strnsave(arg, (int)(subcmd_end - arg));
-  if (subcmd_name != NULL) {
-    if (eap->skip)              /* skip error messages for all subcommands */
-      ++emsg_skip;
-    for (i = 0;; ++i) {
-      if (subcommands[i].name == NULL) {
-        EMSG2(_("E410: Invalid :syntax subcommand: %s"), subcmd_name);
-        break;
-      }
-      if (STRCMP(subcmd_name, (char_u *)subcommands[i].name) == 0) {
-        eap->arg = skipwhite(subcmd_end);
-        (subcommands[i].func)(eap, FALSE);
-        break;
-      }
-    }
-    free(subcmd_name);
-    if (eap->skip)
-      --emsg_skip;
-  }
-}
-
-void ex_ownsyntax(exarg_T *eap)
-{
-  char_u      *old_value;
-  char_u      *new_value;
-
-  if (curwin->w_s == &curwin->w_buffer->b_s) {
-    curwin->w_s = (synblock_T *)alloc(sizeof(synblock_T));
-    memset(curwin->w_s, 0, sizeof(synblock_T));
-    curwin->w_p_spell = FALSE;          /* No spell checking */
-    clear_string_option(&curwin->w_s->b_p_spc);
-    clear_string_option(&curwin->w_s->b_p_spf);
-    vim_regfree(curwin->w_s->b_cap_prog);
-    curwin->w_s->b_cap_prog = NULL;
-    clear_string_option(&curwin->w_s->b_p_spl);
-  }
-
-  /* save value of b:current_syntax */
-  old_value = get_var_value((char_u *)"b:current_syntax");
-  if (old_value != NULL)
-    old_value = vim_strsave(old_value);
-
-  /* Apply the "syntax" autocommand event, this finds and loads the syntax
-   * file. */
-  apply_autocmds(EVENT_SYNTAX, eap->arg, curbuf->b_fname, TRUE, curbuf);
-
-  /* move value of b:current_syntax to w:current_syntax */
-  new_value = get_var_value((char_u *)"b:current_syntax");
-  if (new_value != NULL)
-    set_internal_string_var((char_u *)"w:current_syntax", new_value);
-
-  /* restore value of b:current_syntax */
-  if (old_value == NULL)
-    do_unlet((char_u *)"b:current_syntax", TRUE);
-  else {
-    set_internal_string_var((char_u *)"b:current_syntax", old_value);
-    free(old_value);
-  }
-}
-
-int syntax_present(win_T *win)
-{
-  return win->w_s->b_syn_patterns.ga_len != 0
-         || win->w_s->b_syn_clusters.ga_len != 0
-         || win->w_s->b_keywtab.ht_used > 0
-         || win->w_s->b_keywtab_ic.ht_used > 0;
-}
-
-
-static enum {
-  EXP_SUBCMD,       /* expand ":syn" sub-commands */
-  EXP_CASE          /* expand ":syn case" arguments */
-} expand_what;
-
-/*
- * Reset include_link, include_default, include_none to 0.
- * Called when we are done expanding.
- */
-void reset_expand_highlight(void)
-{
-  include_link = include_default = include_none = 0;
-}
-
-/*
- * Handle command line completion for :match and :echohl command: Add "None"
- * as highlight group.
- */
-void set_context_in_echohl_cmd(expand_T *xp, char_u *arg)
-{
-  xp->xp_context = EXPAND_HIGHLIGHT;
-  xp->xp_pattern = arg;
-  include_none = 1;
-}
-
-/*
- * Handle command line completion for :syntax command.
- */
-void set_context_in_syntax_cmd(expand_T *xp, char_u *arg)
-{
-  char_u      *p;
-
-  /* Default: expand subcommands */
-  xp->xp_context = EXPAND_SYNTAX;
-  expand_what = EXP_SUBCMD;
-  xp->xp_pattern = arg;
-  include_link = 0;
-  include_default = 0;
-
-  /* (part of) subcommand already typed */
-  if (*arg != NUL) {
-    p = skiptowhite(arg);
-    if (*p != NUL) {                /* past first word */
-      xp->xp_pattern = skipwhite(p);
-      if (*skiptowhite(xp->xp_pattern) != NUL)
-        xp->xp_context = EXPAND_NOTHING;
-      else if (STRNICMP(arg, "case", p - arg) == 0)
-        expand_what = EXP_CASE;
-      else if (  STRNICMP(arg, "keyword", p - arg) == 0
-                 || STRNICMP(arg, "region", p - arg) == 0
-                 || STRNICMP(arg, "match", p - arg) == 0
-                 || STRNICMP(arg, "list", p - arg) == 0)
-        xp->xp_context = EXPAND_HIGHLIGHT;
-      else
-        xp->xp_context = EXPAND_NOTHING;
-    }
-  }
-}
-
-static char *(case_args[]) = {"match", "ignore", NULL};
-
-/*
- * Function given to ExpandGeneric() to obtain the list syntax names for
- * expansion.
- */
-char_u *get_syntax_name(expand_T *xp, int idx)
-{
-  if (expand_what == EXP_SUBCMD)
-    return (char_u *)subcommands[idx].name;
-  return (char_u *)case_args[idx];
-}
-
-
-/*
- * Function called for expression evaluation: get syntax ID at file position.
- */
-int 
-syn_get_id (
-    win_T *wp,
-    long lnum,
-    colnr_T col,
-    int trans,                   /* remove transparency */
-    int *spellp,         /* return: can do spell checking */
-    int keep_state              /* keep state of char at "col" */
-)
-{
-  /* When the position is not after the current position and in the same
-   * line of the same buffer, need to restart parsing. */
-  if (wp->w_buffer != syn_buf
-      || lnum != current_lnum
-      || col < current_col)
-    syntax_start(wp, lnum);
-
-  (void)get_syntax_attr(col, spellp, keep_state);
-
-  return trans ? current_trans_id : current_id;
-}
-
-/*
- * Get extra information about the syntax item.  Must be called right after
- * get_syntax_attr().
- * Stores the current item sequence nr in "*seqnrp".
- * Returns the current flags.
- */
-int get_syntax_info(int *seqnrp)
-{
-  *seqnrp = current_seqnr;
-  return current_flags;
-}
-
-/*
- * Return conceal substitution character
- */
-int syn_get_sub_char(void)
-{
-  return current_sub_char;
-}
-
-/*
- * Return the syntax ID at position "i" in the current stack.
- * The caller must have called syn_get_id() before to fill the stack.
- * Returns -1 when "i" is out of range.
- */
-int syn_get_stack_item(int i)
-{
-  if (i >= current_state.ga_len) {
-    /* Need to invalidate the state, because we didn't properly finish it
-     * for the last character, "keep_state" was TRUE. */
-    invalidate_current_state();
-    current_col = MAXCOL;
-    return -1;
-  }
-  return CUR_STATE(i).si_id;
-}
-
-/*
- * Function called to get folding level for line "lnum" in window "wp".
- */
-int syn_get_foldlevel(win_T *wp, long lnum)
-{
-  int level = 0;
-  int i;
-
-  /* Return quickly when there are no fold items at all. */
-  if (wp->w_s->b_syn_folditems != 0) {
-    syntax_start(wp, lnum);
-
-    for (i = 0; i < current_state.ga_len; ++i)
-      if (CUR_STATE(i).si_flags & HL_FOLD)
-        ++level;
-  }
-  if (level > wp->w_p_fdn) {
-    level = wp->w_p_fdn;
-    if (level < 0)
-      level = 0;
-  }
-  return level;
-}
-
-/*
- * ":syntime".
- */
-void ex_syntime(exarg_T *eap)
-{
-  if (STRCMP(eap->arg, "on") == 0)
-    syn_time_on = TRUE;
-  else if (STRCMP(eap->arg, "off") == 0)
-    syn_time_on = FALSE;
-  else if (STRCMP(eap->arg, "clear") == 0)
-    syntime_clear();
-  else if (STRCMP(eap->arg, "report") == 0)
-    syntime_report();
-  else
-    EMSG2(_(e_invarg2), eap->arg);
-}
-
-static void syn_clear_time(syn_time_T *st)
-{
-  profile_zero(&st->total);
-  profile_zero(&st->slowest);
-  st->count = 0;
-  st->match = 0;
-}
-
-/*
- * Clear the syntax timing for the current buffer.
- */
-static void syntime_clear(void)
-{
-  int idx;
-  synpat_T    *spp;
-
-  if (!syntax_present(curwin)) {
-    MSG(_(msg_no_items));
-    return;
-  }
-  for (idx = 0; idx < curwin->w_s->b_syn_patterns.ga_len; ++idx) {
-    spp = &(SYN_ITEMS(curwin->w_s)[idx]);
-    syn_clear_time(&spp->sp_time);
-  }
-}
-
-/*
- * Function given to ExpandGeneric() to obtain the possible arguments of the
- * ":syntime {on,off,clear,report}" command.
- */
-char_u *get_syntime_arg(expand_T *xp, int idx)
-{
-  switch (idx) {
-  case 0: return (char_u *)"on";
-  case 1: return (char_u *)"off";
-  case 2: return (char_u *)"clear";
-  case 3: return (char_u *)"report";
-  }
-  return NULL;
-}
-
-typedef struct {
-  proftime_T total;
-  int count;
-  int match;
-  proftime_T slowest;
-  proftime_T average;
-  int id;
-  char_u      *pattern;
-} time_entry_T;
-
-static int syn_compare_syntime(const void *v1, const void *v2)
-{
-  const time_entry_T  *s1 = v1;
-  const time_entry_T  *s2 = v2;
-
-  return profile_cmp(&s1->total, &s2->total);
-}
-
-/*
- * Clear the syntax timing for the current buffer.
- */
-static void syntime_report(void)
-{
-  int idx;
-  synpat_T    *spp;
-  proftime_T tm;
-  int len;
-  proftime_T total_total;
-  int total_count = 0;
-  garray_T ga;
-  time_entry_T *p;
-
-  if (!syntax_present(curwin)) {
-    MSG(_(msg_no_items));
-    return;
-  }
-
-  ga_init(&ga, sizeof(time_entry_T), 50);
-  profile_zero(&total_total);
-  for (idx = 0; idx < curwin->w_s->b_syn_patterns.ga_len; ++idx) {
-    spp = &(SYN_ITEMS(curwin->w_s)[idx]);
-    if (spp->sp_time.count > 0) {
-      ga_grow(&ga, 1);
-      p = ((time_entry_T *)ga.ga_data) + ga.ga_len;
-      p->total = spp->sp_time.total;
-      profile_add(&total_total, &spp->sp_time.total);
-      p->count = spp->sp_time.count;
-      p->match = spp->sp_time.match;
-      total_count += spp->sp_time.count;
-      p->slowest = spp->sp_time.slowest;
-      profile_divide(&spp->sp_time.total, spp->sp_time.count, &tm);
-      p->average = tm;
-      p->id = spp->sp_syn.id;
-      p->pattern = spp->sp_pattern;
-      ++ga.ga_len;
-    }
-  }
-
-  /* sort on total time */
-  qsort(ga.ga_data, (size_t)ga.ga_len, sizeof(time_entry_T),
-      syn_compare_syntime);
-
-  MSG_PUTS_TITLE(_(
-          "  TOTAL      COUNT  MATCH   SLOWEST     AVERAGE   NAME               PATTERN"));
-  MSG_PUTS("\n");
-  for (idx = 0; idx < ga.ga_len && !got_int; ++idx) {
-    spp = &(SYN_ITEMS(curwin->w_s)[idx]);
-    p = ((time_entry_T *)ga.ga_data) + idx;
-
-    MSG_PUTS(profile_msg(&p->total));
-    MSG_PUTS(" ");     /* make sure there is always a separating space */
-    msg_advance(13);
-    msg_outnum(p->count);
-    MSG_PUTS(" ");
-    msg_advance(20);
-    msg_outnum(p->match);
-    MSG_PUTS(" ");
-    msg_advance(26);
-    MSG_PUTS(profile_msg(&p->slowest));
-    MSG_PUTS(" ");
-    msg_advance(38);
-    MSG_PUTS(profile_msg(&p->average));
-    MSG_PUTS(" ");
-    msg_advance(50);
-    msg_outtrans(HL_TABLE()[p->id - 1].sg_name);
-    MSG_PUTS(" ");
-
-    msg_advance(69);
-    if (Columns < 80)
-      len = 20;       /* will wrap anyway */
-    else
-      len = Columns - 70;
-    if (len > (int)STRLEN(p->pattern))
-      len = (int)STRLEN(p->pattern);
-    msg_outtrans_len(p->pattern, len);
-    MSG_PUTS("\n");
-  }
-  ga_clear(&ga);
-  if (!got_int) {
-    MSG_PUTS("\n");
-    MSG_PUTS(profile_msg(&total_total));
-    msg_advance(13);
-    msg_outnum(total_count);
-    MSG_PUTS("\n");
-  }
-}
-
-/**************************************
-*  Highlighting stuff		      *
-**************************************/
-
-/*
- * The default highlight groups.  These are compiled-in for fast startup and
- * they still work when the runtime files can't be found.
- * When making changes here, also change runtime/colors/default.vim!
- * The #ifdefs are needed to reduce the amount of static data.  Helps to make
- * the 16 bit DOS (museum) version compile.
- */
-# define CENT(a, b) b
-static char *(highlight_init_both[]) =
-{
-  CENT(
-      "ErrorMsg term=standout ctermbg=DarkRed ctermfg=White",
-      "ErrorMsg term=standout ctermbg=DarkRed ctermfg=White guibg=Red guifg=White"),
-  CENT("IncSearch term=reverse cterm=reverse",
-      "IncSearch term=reverse cterm=reverse gui=reverse"),
-  CENT("ModeMsg term=bold cterm=bold",
-      "ModeMsg term=bold cterm=bold gui=bold"),
-  CENT("NonText term=bold ctermfg=Blue",
-      "NonText term=bold ctermfg=Blue gui=bold guifg=Blue"),
-  CENT("StatusLine term=reverse,bold cterm=reverse,bold",
-      "StatusLine term=reverse,bold cterm=reverse,bold gui=reverse,bold"),
-  CENT("StatusLineNC term=reverse cterm=reverse",
-      "StatusLineNC term=reverse cterm=reverse gui=reverse"),
-  CENT("VertSplit term=reverse cterm=reverse",
-      "VertSplit term=reverse cterm=reverse gui=reverse"),
-  CENT("DiffText term=reverse cterm=bold ctermbg=Red",
-      "DiffText term=reverse cterm=bold ctermbg=Red gui=bold guibg=Red"),
-  CENT("PmenuSbar ctermbg=Grey",
-      "PmenuSbar ctermbg=Grey guibg=Grey"),
-  CENT("TabLineSel term=bold cterm=bold",
-      "TabLineSel term=bold cterm=bold gui=bold"),
-  CENT("TabLineFill term=reverse cterm=reverse",
-      "TabLineFill term=reverse cterm=reverse gui=reverse"),
-  NULL
-};
-
-static char *(highlight_init_light[]) =
-{
-  CENT("Directory term=bold ctermfg=DarkBlue",
-      "Directory term=bold ctermfg=DarkBlue guifg=Blue"),
-  CENT("LineNr term=underline ctermfg=Brown",
-      "LineNr term=underline ctermfg=Brown guifg=Brown"),
-  CENT("CursorLineNr term=bold ctermfg=Brown",
-      "CursorLineNr term=bold ctermfg=Brown gui=bold guifg=Brown"),
-  CENT("MoreMsg term=bold ctermfg=DarkGreen",
-      "MoreMsg term=bold ctermfg=DarkGreen gui=bold guifg=SeaGreen"),
-  CENT("Question term=standout ctermfg=DarkGreen",
-      "Question term=standout ctermfg=DarkGreen gui=bold guifg=SeaGreen"),
-  CENT("Search term=reverse ctermbg=Yellow ctermfg=NONE",
-      "Search term=reverse ctermbg=Yellow ctermfg=NONE guibg=Yellow guifg=NONE"),
-  CENT("SpellBad term=reverse ctermbg=LightRed",
-      "SpellBad term=reverse ctermbg=LightRed guisp=Red gui=undercurl"),
-  CENT("SpellCap term=reverse ctermbg=LightBlue",
-      "SpellCap term=reverse ctermbg=LightBlue guisp=Blue gui=undercurl"),
-  CENT("SpellRare term=reverse ctermbg=LightMagenta",
-      "SpellRare term=reverse ctermbg=LightMagenta guisp=Magenta gui=undercurl"),
-  CENT("SpellLocal term=underline ctermbg=Cyan",
-      "SpellLocal term=underline ctermbg=Cyan guisp=DarkCyan gui=undercurl"),
-  CENT("PmenuThumb ctermbg=Black",
-      "PmenuThumb ctermbg=Black guibg=Black"),
-  CENT("Pmenu ctermbg=LightMagenta ctermfg=Black",
-      "Pmenu ctermbg=LightMagenta ctermfg=Black guibg=LightMagenta"),
-  CENT("PmenuSel ctermbg=LightGrey ctermfg=Black",
-      "PmenuSel ctermbg=LightGrey ctermfg=Black guibg=Grey"),
-  CENT("SpecialKey term=bold ctermfg=DarkBlue",
-      "SpecialKey term=bold ctermfg=DarkBlue guifg=Blue"),
-  CENT("Title term=bold ctermfg=DarkMagenta",
-      "Title term=bold ctermfg=DarkMagenta gui=bold guifg=Magenta"),
-  CENT("WarningMsg term=standout ctermfg=DarkRed",
-      "WarningMsg term=standout ctermfg=DarkRed guifg=Red"),
-  CENT(
-      "WildMenu term=standout ctermbg=Yellow ctermfg=Black",
-      "WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
-  CENT(
-      "Folded term=standout ctermbg=Grey ctermfg=DarkBlue",
-      "Folded term=standout ctermbg=Grey ctermfg=DarkBlue guibg=LightGrey guifg=DarkBlue"),
-  CENT(
-      "FoldColumn term=standout ctermbg=Grey ctermfg=DarkBlue",
-      "FoldColumn term=standout ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue"),
-  CENT("SignColumn term=standout ctermbg=Grey ctermfg=DarkBlue",
-       "SignColumn term=standout ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue"),
-  CENT("Visual term=reverse",
-      "Visual term=reverse guibg=LightGrey"),
-  CENT("DiffAdd term=bold ctermbg=LightBlue",
-      "DiffAdd term=bold ctermbg=LightBlue guibg=LightBlue"),
-  CENT("DiffChange term=bold ctermbg=LightMagenta",
-      "DiffChange term=bold ctermbg=LightMagenta guibg=LightMagenta"),
-  CENT(
-      "DiffDelete term=bold ctermfg=Blue ctermbg=LightCyan",
-      "DiffDelete term=bold ctermfg=Blue ctermbg=LightCyan gui=bold guifg=Blue guibg=LightCyan"),
-  CENT(
-      "TabLine term=underline cterm=underline ctermfg=black ctermbg=LightGrey",
-      "TabLine term=underline cterm=underline ctermfg=black ctermbg=LightGrey gui=underline guibg=LightGrey"),
-  CENT("CursorColumn term=reverse ctermbg=LightGrey",
-      "CursorColumn term=reverse ctermbg=LightGrey guibg=Grey90"),
-  CENT("CursorLine term=underline cterm=underline",
-      "CursorLine term=underline cterm=underline guibg=Grey90"),
-  CENT("ColorColumn term=reverse ctermbg=LightRed",
-      "ColorColumn term=reverse ctermbg=LightRed guibg=LightRed"),
-  CENT(
-      "Conceal ctermbg=DarkGrey ctermfg=LightGrey",
-      "Conceal ctermbg=DarkGrey ctermfg=LightGrey guibg=DarkGrey guifg=LightGrey"),
-  CENT("MatchParen term=reverse ctermbg=Cyan",
-      "MatchParen term=reverse ctermbg=Cyan guibg=Cyan"),
-  NULL
-};
-
-static char *(highlight_init_dark[]) =
-{
-  CENT("Directory term=bold ctermfg=LightCyan",
-      "Directory term=bold ctermfg=LightCyan guifg=Cyan"),
-  CENT("LineNr term=underline ctermfg=Yellow",
-      "LineNr term=underline ctermfg=Yellow guifg=Yellow"),
-  CENT("CursorLineNr term=bold ctermfg=Yellow",
-      "CursorLineNr term=bold ctermfg=Yellow gui=bold guifg=Yellow"),
-  CENT("MoreMsg term=bold ctermfg=LightGreen",
-      "MoreMsg term=bold ctermfg=LightGreen gui=bold guifg=SeaGreen"),
-  CENT("Question term=standout ctermfg=LightGreen",
-      "Question term=standout ctermfg=LightGreen gui=bold guifg=Green"),
-  CENT(
-      "Search term=reverse ctermbg=Yellow ctermfg=Black",
-      "Search term=reverse ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
-  CENT("SpecialKey term=bold ctermfg=LightBlue",
-      "SpecialKey term=bold ctermfg=LightBlue guifg=Cyan"),
-  CENT("SpellBad term=reverse ctermbg=Red",
-      "SpellBad term=reverse ctermbg=Red guisp=Red gui=undercurl"),
-  CENT("SpellCap term=reverse ctermbg=Blue",
-      "SpellCap term=reverse ctermbg=Blue guisp=Blue gui=undercurl"),
-  CENT("SpellRare term=reverse ctermbg=Magenta",
-      "SpellRare term=reverse ctermbg=Magenta guisp=Magenta gui=undercurl"),
-  CENT("SpellLocal term=underline ctermbg=Cyan",
-      "SpellLocal term=underline ctermbg=Cyan guisp=Cyan gui=undercurl"),
-  CENT("PmenuThumb ctermbg=White",
-      "PmenuThumb ctermbg=White guibg=White"),
-  CENT("Pmenu ctermbg=Magenta ctermfg=Black",
-      "Pmenu ctermbg=Magenta ctermfg=Black guibg=Magenta"),
-  CENT("PmenuSel ctermbg=Black ctermfg=DarkGrey",
-      "PmenuSel ctermbg=Black ctermfg=DarkGrey guibg=DarkGrey"),
-  CENT("Title term=bold ctermfg=LightMagenta",
-      "Title term=bold ctermfg=LightMagenta gui=bold guifg=Magenta"),
-  CENT("WarningMsg term=standout ctermfg=LightRed",
-      "WarningMsg term=standout ctermfg=LightRed guifg=Red"),
-  CENT(
-      "WildMenu term=standout ctermbg=Yellow ctermfg=Black",
-      "WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
-  CENT(
-      "Folded term=standout ctermbg=DarkGrey ctermfg=Cyan",
-      "Folded term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=DarkGrey guifg=Cyan"),
-  CENT(
-      "FoldColumn term=standout ctermbg=DarkGrey ctermfg=Cyan",
-      "FoldColumn term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan"),
-  CENT("SignColumn term=standout ctermbg=DarkGrey ctermfg=Cyan",
-      "SignColumn term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan"),
-  CENT("Visual term=reverse",
-      "Visual term=reverse guibg=DarkGrey"),
-  CENT("DiffAdd term=bold ctermbg=DarkBlue",
-      "DiffAdd term=bold ctermbg=DarkBlue guibg=DarkBlue"),
-  CENT("DiffChange term=bold ctermbg=DarkMagenta",
-      "DiffChange term=bold ctermbg=DarkMagenta guibg=DarkMagenta"),
-  CENT(
-      "DiffDelete term=bold ctermfg=Blue ctermbg=DarkCyan",
-      "DiffDelete term=bold ctermfg=Blue ctermbg=DarkCyan gui=bold guifg=Blue guibg=DarkCyan"),
-  CENT(
-      "TabLine term=underline cterm=underline ctermfg=white ctermbg=DarkGrey",
-      "TabLine term=underline cterm=underline ctermfg=white ctermbg=DarkGrey gui=underline guibg=DarkGrey"),
-  CENT("CursorColumn term=reverse ctermbg=DarkGrey",
-      "CursorColumn term=reverse ctermbg=DarkGrey guibg=Grey40"),
-  CENT("CursorLine term=underline cterm=underline",
-      "CursorLine term=underline cterm=underline guibg=Grey40"),
-  CENT("ColorColumn term=reverse ctermbg=DarkRed",
-      "ColorColumn term=reverse ctermbg=DarkRed guibg=DarkRed"),
-  CENT("MatchParen term=reverse ctermbg=DarkCyan",
-      "MatchParen term=reverse ctermbg=DarkCyan guibg=DarkCyan"),
-  CENT(
-      "Conceal ctermbg=DarkGrey ctermfg=LightGrey",
-      "Conceal ctermbg=DarkGrey ctermfg=LightGrey guibg=DarkGrey guifg=LightGrey"),
-  NULL
-};
-
-void 
-init_highlight (
-    int both,                   /* include groups where 'bg' doesn't matter */
-    int reset                  /* clear group first */
-)
-{
-  int i;
-  char        **pp;
-  static int had_both = FALSE;
-  char_u      *p;
-
-  /*
-   * Try finding the color scheme file.  Used when a color file was loaded
-   * and 'background' or 't_Co' is changed.
-   */
-  p = get_var_value((char_u *)"g:colors_name");
-  if (p != NULL && load_colors(p) == OK)
-    return;
-
-  /*
-   * Didn't use a color file, use the compiled-in colors.
-   */
-  if (both) {
-    had_both = TRUE;
-    pp = highlight_init_both;
-    for (i = 0; pp[i] != NULL; ++i)
-      do_highlight((char_u *)pp[i], reset, TRUE);
-  } else if (!had_both)
-    /* Don't do anything before the call with both == TRUE from main().
-     * Not everything has been setup then, and that call will overrule
-     * everything anyway. */
-    return;
-
-  if (*p_bg == 'l')
-    pp = highlight_init_light;
-  else
-    pp = highlight_init_dark;
-  for (i = 0; pp[i] != NULL; ++i)
-    do_highlight((char_u *)pp[i], reset, TRUE);
-
-  /* Reverse looks ugly, but grey may not work for 8 colors.  Thus let it
-   * depend on the number of colors available.
-   * With 8 colors brown is equal to yellow, need to use black for Search fg
-   * to avoid Statement highlighted text disappears.
-   * Clear the attributes, needed when changing the t_Co value. */
-  if (t_colors > 8)
-    do_highlight(
-        (char_u *)(*p_bg == 'l'
-                   ? "Visual cterm=NONE ctermbg=LightGrey"
-                   : "Visual cterm=NONE ctermbg=DarkGrey"), FALSE,
-        TRUE);
-  else {
-    do_highlight((char_u *)"Visual cterm=reverse ctermbg=NONE",
-        FALSE, TRUE);
-    if (*p_bg == 'l')
-      do_highlight((char_u *)"Search ctermfg=black", FALSE, TRUE);
-  }
-
-  /*
-   * If syntax highlighting is enabled load the highlighting for it.
-   */
-  if (get_var_value((char_u *)"g:syntax_on") != NULL) {
-    static int recursive = 0;
-
-    if (recursive >= 5)
-      EMSG(_("E679: recursive loop loading syncolor.vim"));
-    else {
-      ++recursive;
-      (void)source_runtime((char_u *)"syntax/syncolor.vim", TRUE);
-      --recursive;
-    }
-  }
-}
-
-/*
- * Load color file "name".
- * Return OK for success, FAIL for failure.
- */
-int load_colors(char_u *name)
-{
-  char_u      *buf;
-  int retval = FAIL;
-  static int recursive = FALSE;
-
-  /* When being called recursively, this is probably because setting
-   * 'background' caused the highlighting to be reloaded.  This means it is
-   * working, thus we should return OK. */
-  if (recursive)
-    return OK;
-
-  recursive = TRUE;
-  buf = alloc((unsigned)(STRLEN(name) + 12));
-  sprintf((char *)buf, "colors/%s.vim", name);
-  retval = source_runtime(buf, FALSE);
-  free(buf);
-  apply_autocmds(EVENT_COLORSCHEME, name, curbuf->b_fname, FALSE, curbuf);
-
-  recursive = FALSE;
-
-  return retval;
-}
-
-/*
- * Handle the ":highlight .." command.
- * When using ":hi clear" this is called recursively for each group with
- * "forceit" and "init" both TRUE.
- */
-void 
-do_highlight (
-    char_u *line,
-    int forceit,
-    int init                   /* TRUE when called for initializing */
-)
-{
-  char_u      *name_end;
-  char_u      *p;
-  char_u      *linep;
-  char_u      *key_start;
-  char_u      *arg_start;
-  char_u      *key = NULL, *arg = NULL;
-  long i;
-  int off;
-  int len;
-  int attr;
-  int id;
-  int idx;
-  int dodefault = FALSE;
-  int doclear = FALSE;
-  int dolink = FALSE;
-  int error = FALSE;
-  int color;
-  int is_normal_group = FALSE;                  /* "Normal" group */
-# define is_menu_group 0
-# define is_tooltip_group 0
-
-  /*
-   * If no argument, list current highlighting.
-   */
-  if (ends_excmd(*line)) {
-    for (i = 1; i <= highlight_ga.ga_len && !got_int; ++i)
-      /* TODO: only call when the group has attributes set */
-      highlight_list_one((int)i);
-    return;
-  }
-
-  /*
-   * Isolate the name.
-   */
-  name_end = skiptowhite(line);
-  linep = skipwhite(name_end);
-
-  /*
-   * Check for "default" argument.
-   */
-  if (STRNCMP(line, "default", name_end - line) == 0) {
-    dodefault = TRUE;
-    line = linep;
-    name_end = skiptowhite(line);
-    linep = skipwhite(name_end);
-  }
-
-  /*
-   * Check for "clear" or "link" argument.
-   */
-  if (STRNCMP(line, "clear", name_end - line) == 0)
-    doclear = TRUE;
-  if (STRNCMP(line, "link", name_end - line) == 0)
-    dolink = TRUE;
-
-  /*
-   * ":highlight {group-name}": list highlighting for one group.
-   */
-  if (!doclear && !dolink && ends_excmd(*linep)) {
-    id = syn_namen2id(line, (int)(name_end - line));
-    if (id == 0)
-      EMSG2(_("E411: highlight group not found: %s"), line);
-    else
-      highlight_list_one(id);
-    return;
-  }
-
-  /*
-   * Handle ":highlight link {from} {to}" command.
-   */
-  if (dolink) {
-    char_u      *from_start = linep;
-    char_u      *from_end;
-    char_u      *to_start;
-    char_u      *to_end;
-    int from_id;
-    int to_id;
-
-    from_end = skiptowhite(from_start);
-    to_start = skipwhite(from_end);
-    to_end   = skiptowhite(to_start);
-
-    if (ends_excmd(*from_start) || ends_excmd(*to_start)) {
-      EMSG2(_("E412: Not enough arguments: \":highlight link %s\""),
-          from_start);
-      return;
-    }
-
-    if (!ends_excmd(*skipwhite(to_end))) {
-      EMSG2(_("E413: Too many arguments: \":highlight link %s\""), from_start);
-      return;
-    }
-
-    from_id = syn_check_group(from_start, (int)(from_end - from_start));
-    if (STRNCMP(to_start, "NONE", 4) == 0)
-      to_id = 0;
-    else
-      to_id = syn_check_group(to_start, (int)(to_end - to_start));
-
-    if (from_id > 0 && (!init || HL_TABLE()[from_id - 1].sg_set == 0)) {
-      /*
-       * Don't allow a link when there already is some highlighting
-       * for the group, unless '!' is used
-       */
-      if (to_id > 0 && !forceit && !init
-          && hl_has_settings(from_id - 1, dodefault)) {
-        if (sourcing_name == NULL && !dodefault)
-          EMSG(_("E414: group has settings, highlight link ignored"));
-      } else {
-        if (!init)
-          HL_TABLE()[from_id - 1].sg_set |= SG_LINK;
-        HL_TABLE()[from_id - 1].sg_link = to_id;
-        HL_TABLE()[from_id - 1].sg_scriptID = current_SID;
-        redraw_all_later(SOME_VALID);
-      }
-    }
-
-    /* Only call highlight_changed() once, after sourcing a syntax file */
-    need_highlight_changed = TRUE;
-
-    return;
-  }
-
-  if (doclear) {
-    /*
-     * ":highlight clear [group]" command.
-     */
-    line = linep;
-    if (ends_excmd(*line)) {
-      do_unlet((char_u *)"colors_name", TRUE);
-      restore_cterm_colors();
-
-      /*
-       * Clear all default highlight groups and load the defaults.
-       */
-      for (idx = 0; idx < highlight_ga.ga_len; ++idx)
-        highlight_clear(idx);
-      init_highlight(TRUE, TRUE);
-      highlight_changed();
-      redraw_later_clear();
-      return;
-    }
-    name_end = skiptowhite(line);
-    linep = skipwhite(name_end);
-  }
-
-  /*
-   * Find the group name in the table.  If it does not exist yet, add it.
-   */
-  id = syn_check_group(line, (int)(name_end - line));
-  if (id == 0)                          /* failed (out of memory) */
-    return;
-  idx = id - 1;                         /* index is ID minus one */
-
-  /* Return if "default" was used and the group already has settings. */
-  if (dodefault && hl_has_settings(idx, TRUE))
-    return;
-
-  if (STRCMP(HL_TABLE()[idx].sg_name_u, "NORMAL") == 0)
-    is_normal_group = TRUE;
-
-  /* Clear the highlighting for ":hi clear {group}" and ":hi clear". */
-  if (doclear || (forceit && init)) {
-    highlight_clear(idx);
-    if (!doclear)
-      HL_TABLE()[idx].sg_set = 0;
-  }
-
-  if (!doclear)
-    while (!ends_excmd(*linep)) {
-      key_start = linep;
-      if (*linep == '=') {
-        EMSG2(_("E415: unexpected equal sign: %s"), key_start);
-        error = TRUE;
-        break;
-      }
-
-      /*
-       * Isolate the key ("term", "ctermfg", "ctermbg", "font", "guifg" or
-       * "guibg").
-       */
-      while (*linep && !vim_iswhite(*linep) && *linep != '=')
-        ++linep;
-      free(key);
-      key = vim_strnsave_up(key_start, (int)(linep - key_start));
-      if (key == NULL) {
-        error = TRUE;
-        break;
-      }
-      linep = skipwhite(linep);
-
-      if (STRCMP(key, "NONE") == 0) {
-        if (!init || HL_TABLE()[idx].sg_set == 0) {
-          if (!init)
-            HL_TABLE()[idx].sg_set |= SG_TERM+SG_CTERM+SG_GUI;
-          highlight_clear(idx);
-        }
-        continue;
-      }
-
-      /*
-       * Check for the equal sign.
-       */
-      if (*linep != '=') {
-        EMSG2(_("E416: missing equal sign: %s"), key_start);
-        error = TRUE;
-        break;
-      }
-      ++linep;
-
-      /*
-       * Isolate the argument.
-       */
-      linep = skipwhite(linep);
-      if (*linep == '\'') {             /* guifg='color name' */
-        arg_start = ++linep;
-        linep = vim_strchr(linep, '\'');
-        if (linep == NULL) {
-          EMSG2(_(e_invarg2), key_start);
-          error = TRUE;
-          break;
-        }
-      } else {
-        arg_start = linep;
-        linep = skiptowhite(linep);
-      }
-      if (linep == arg_start) {
-        EMSG2(_("E417: missing argument: %s"), key_start);
-        error = TRUE;
-        break;
-      }
-      free(arg);
-      arg = vim_strnsave(arg_start, (int)(linep - arg_start));
-      if (arg == NULL) {
-        error = TRUE;
-        break;
-      }
-      if (*linep == '\'')
-        ++linep;
-
-      /*
-       * Store the argument.
-       */
-      if (  STRCMP(key, "TERM") == 0
-            || STRCMP(key, "CTERM") == 0
-            || STRCMP(key, "GUI") == 0) {
-        attr = 0;
-        off = 0;
-        while (arg[off] != NUL) {
-          for (i = sizeof(hl_attr_table) / sizeof(int); --i >= 0; ) {
-            len = (int)STRLEN(hl_name_table[i]);
-            if (STRNICMP(arg + off, hl_name_table[i], len) == 0) {
-              attr |= hl_attr_table[i];
-              off += len;
-              break;
-            }
-          }
-          if (i < 0) {
-            EMSG2(_("E418: Illegal value: %s"), arg);
-            error = TRUE;
-            break;
-          }
-          if (arg[off] == ',')                  /* another one follows */
-            ++off;
-        }
-        if (error)
-          break;
-        if (*key == 'T') {
-          if (!init || !(HL_TABLE()[idx].sg_set & SG_TERM)) {
-            if (!init)
-              HL_TABLE()[idx].sg_set |= SG_TERM;
-            HL_TABLE()[idx].sg_term = attr;
-          }
-        } else if (*key == 'C')   {
-          if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM)) {
-            if (!init)
-              HL_TABLE()[idx].sg_set |= SG_CTERM;
-            HL_TABLE()[idx].sg_cterm = attr;
-            HL_TABLE()[idx].sg_cterm_bold = FALSE;
-          }
-        } else {
-          if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) {
-            if (!init)
-              HL_TABLE()[idx].sg_set |= SG_GUI;
-            HL_TABLE()[idx].sg_gui = attr;
-          }
-        }
-      } else if (STRCMP(key, "FONT") == 0)   {
-        /* in non-GUI fonts are simply ignored */
-      } else if (STRCMP(key,
-                     "CTERMFG") == 0 || STRCMP(key, "CTERMBG") == 0)   {
-        if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM)) {
-          if (!init)
-            HL_TABLE()[idx].sg_set |= SG_CTERM;
-
-          /* When setting the foreground color, and previously the "bold"
-           * flag was set for a light color, reset it now */
-          if (key[5] == 'F' && HL_TABLE()[idx].sg_cterm_bold) {
-            HL_TABLE()[idx].sg_cterm &= ~HL_BOLD;
-            HL_TABLE()[idx].sg_cterm_bold = FALSE;
-          }
-
-          if (VIM_ISDIGIT(*arg))
-            color = atoi((char *)arg);
-          else if (STRICMP(arg, "fg") == 0) {
-            if (cterm_normal_fg_color)
-              color = cterm_normal_fg_color - 1;
-            else {
-              EMSG(_("E419: FG color unknown"));
-              error = TRUE;
-              break;
-            }
-          } else if (STRICMP(arg, "bg") == 0)   {
-            if (cterm_normal_bg_color > 0)
-              color = cterm_normal_bg_color - 1;
-            else {
-              EMSG(_("E420: BG color unknown"));
-              error = TRUE;
-              break;
-            }
-          } else {
-            static char *(color_names[28]) = {
-              "Black", "DarkBlue", "DarkGreen", "DarkCyan",
-              "DarkRed", "DarkMagenta", "Brown", "DarkYellow",
-              "Gray", "Grey",
-              "LightGray", "LightGrey", "DarkGray", "DarkGrey",
-              "Blue", "LightBlue", "Green", "LightGreen",
-              "Cyan", "LightCyan", "Red", "LightRed", "Magenta",
-              "LightMagenta", "Yellow", "LightYellow", "White", "NONE"
-            };
-            static int color_numbers_16[28] = {0, 1, 2, 3,
-                                               4, 5, 6, 6,
-                                               7, 7,
-                                               7, 7, 8, 8,
-                                               9, 9, 10, 10,
-                                               11, 11, 12, 12, 13,
-                                               13, 14, 14, 15, -1};
-            /* for xterm with 88 colors... */
-            static int color_numbers_88[28] = {0, 4, 2, 6,
-                                               1, 5, 32, 72,
-                                               84, 84,
-                                               7, 7, 82, 82,
-                                               12, 43, 10, 61,
-                                               14, 63, 9, 74, 13,
-                                               75, 11, 78, 15, -1};
-            /* for xterm with 256 colors... */
-            static int color_numbers_256[28] = {0, 4, 2, 6,
-                                                1, 5, 130, 130,
-                                                248, 248,
-                                                7, 7, 242, 242,
-                                                12, 81, 10, 121,
-                                                14, 159, 9, 224, 13,
-                                                225, 11, 229, 15, -1};
-            /* for terminals with less than 16 colors... */
-            static int color_numbers_8[28] = {0, 4, 2, 6,
-                                              1, 5, 3, 3,
-                                              7, 7,
-                                              7, 7, 0+8, 0+8,
-                                              4+8, 4+8, 2+8, 2+8,
-                                              6+8, 6+8, 1+8, 1+8, 5+8,
-                                              5+8, 3+8, 3+8, 7+8, -1};
-#if defined(__QNXNTO__)
-            static int *color_numbers_8_qansi = color_numbers_8;
-            /* On qnx, the 8 & 16 color arrays are the same */
-            if (STRNCMP(T_NAME, "qansi", 5) == 0)
-              color_numbers_8_qansi = color_numbers_16;
-#endif
-
-            /* reduce calls to STRICMP a bit, it can be slow */
-            off = TOUPPER_ASC(*arg);
-            for (i = (sizeof(color_names) / sizeof(char *)); --i >= 0; )
-              if (off == color_names[i][0]
-                  && STRICMP(arg + 1, color_names[i] + 1) == 0)
-                break;
-            if (i < 0) {
-              EMSG2(_(
-                      "E421: Color name or number not recognized: %s"),
-                  key_start);
-              error = TRUE;
-              break;
-            }
-
-            /* Use the _16 table to check if its a valid color name. */
-            color = color_numbers_16[i];
-            if (color >= 0) {
-              if (t_colors == 8) {
-                /* t_Co is 8: use the 8 colors table */
-#if defined(__QNXNTO__)
-                color = color_numbers_8_qansi[i];
-#else
-                color = color_numbers_8[i];
-#endif
-                if (key[5] == 'F') {
-                  /* set/reset bold attribute to get light foreground
-                   * colors (on some terminals, e.g. "linux") */
-                  if (color & 8) {
-                    HL_TABLE()[idx].sg_cterm |= HL_BOLD;
-                    HL_TABLE()[idx].sg_cterm_bold = TRUE;
-                  } else
-                    HL_TABLE()[idx].sg_cterm &= ~HL_BOLD;
-                }
-                color &= 7;             /* truncate to 8 colors */
-              } else if (t_colors == 16 || t_colors == 88
-                         || t_colors == 256) {
-                /*
-                 * Guess: if the termcap entry ends in 'm', it is
-                 * probably an xterm-like terminal.  Use the changed
-                 * order for colors.
-                 */
-                if (*T_CAF != NUL)
-                  p = T_CAF;
-                else
-                  p = T_CSF;
-                if (*p != NUL && *(p + STRLEN(p) - 1) == 'm')
-                  switch (t_colors) {
-                  case 16:
-                    color = color_numbers_8[i];
-                    break;
-                  case 88:
-                    color = color_numbers_88[i];
-                    break;
-                  case 256:
-                    color = color_numbers_256[i];
-                    break;
-                  }
-              }
-            }
-          }
-          /* Add one to the argument, to avoid zero.  Zero is used for
-           * "NONE", then "color" is -1. */
-          if (key[5] == 'F') {
-            HL_TABLE()[idx].sg_cterm_fg = color + 1;
-            if (is_normal_group) {
-              cterm_normal_fg_color = color + 1;
-              cterm_normal_fg_bold = (HL_TABLE()[idx].sg_cterm & HL_BOLD);
-              {
-                must_redraw = CLEAR;
-                if (termcap_active && color >= 0)
-                  term_fg_color(color);
-              }
-            }
-          } else {
-            HL_TABLE()[idx].sg_cterm_bg = color + 1;
-            if (is_normal_group) {
-              cterm_normal_bg_color = color + 1;
-              {
-                must_redraw = CLEAR;
-                if (color >= 0) {
-                  if (termcap_active)
-                    term_bg_color(color);
-                  if (t_colors < 16)
-                    i = (color == 0 || color == 4);
-                  else
-                    i = (color < 7 || color == 8);
-                  /* Set the 'background' option if the value is
-                   * wrong. */
-                  if (i != (*p_bg == 'd'))
-                    set_option_value((char_u *)"bg", 0L,
-                        i ?  (char_u *)"dark"
-                        : (char_u *)"light", 0);
-                }
-              }
-            }
-          }
-        }
-      } else if (STRCMP(key, "GUIFG") == 0)   {
-        if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) {
-          if (!init)
-            HL_TABLE()[idx].sg_set |= SG_GUI;
-
-          free(HL_TABLE()[idx].sg_gui_fg_name);
-          if (STRCMP(arg, "NONE"))
-            HL_TABLE()[idx].sg_gui_fg_name = vim_strsave(arg);
-          else
-            HL_TABLE()[idx].sg_gui_fg_name = NULL;
-        }
-      } else if (STRCMP(key, "GUIBG") == 0)   {
-        if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) {
-          if (!init)
-            HL_TABLE()[idx].sg_set |= SG_GUI;
-
-          free(HL_TABLE()[idx].sg_gui_bg_name);
-          if (STRCMP(arg, "NONE") != 0)
-            HL_TABLE()[idx].sg_gui_bg_name = vim_strsave(arg);
-          else
-            HL_TABLE()[idx].sg_gui_bg_name = NULL;
-        }
-      } else if (STRCMP(key, "GUISP") == 0)   {
-        if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) {
-          if (!init)
-            HL_TABLE()[idx].sg_set |= SG_GUI;
-
-          free(HL_TABLE()[idx].sg_gui_sp_name);
-          if (STRCMP(arg, "NONE") != 0)
-            HL_TABLE()[idx].sg_gui_sp_name = vim_strsave(arg);
-          else
-            HL_TABLE()[idx].sg_gui_sp_name = NULL;
-        }
-      } else if (STRCMP(key, "START") == 0 || STRCMP(key, "STOP") == 0)   {
-        char_u buf[100];
-        char_u      *tname;
-
-        if (!init)
-          HL_TABLE()[idx].sg_set |= SG_TERM;
-
-        /*
-         * The "start" and "stop"  arguments can be a literal escape
-         * sequence, or a comma separated list of terminal codes.
-         */
-        if (STRNCMP(arg, "t_", 2) == 0) {
-          off = 0;
-          buf[0] = 0;
-          while (arg[off] != NUL) {
-            /* Isolate one termcap name */
-            for (len = 0; arg[off + len] &&
-                 arg[off + len] != ','; ++len)
-              ;
-            tname = vim_strnsave(arg + off, len);
-            if (tname == NULL) {                /* out of memory */
-              error = TRUE;
-              break;
-            }
-            /* lookup the escape sequence for the item */
-            p = get_term_code(tname);
-            free(tname);
-            if (p == NULL)                  /* ignore non-existing things */
-              p = (char_u *)"";
-
-            /* Append it to the already found stuff */
-            if ((int)(STRLEN(buf) + STRLEN(p)) >= 99) {
-              EMSG2(_("E422: terminal code too long: %s"), arg);
-              error = TRUE;
-              break;
-            }
-            STRCAT(buf, p);
-
-            /* Advance to the next item */
-            off += len;
-            if (arg[off] == ',')                    /* another one follows */
-              ++off;
-          }
-        } else {
-          /*
-           * Copy characters from arg[] to buf[], translating <> codes.
-           */
-          for (p = arg, off = 0; off < 100 - 6 && *p; ) {
-            len = trans_special(&p, buf + off, FALSE);
-            if (len > 0)                    /* recognized special char */
-              off += len;
-            else                            /* copy as normal char */
-              buf[off++] = *p++;
-          }
-          buf[off] = NUL;
-        }
-        if (error)
-          break;
-
-        if (STRCMP(buf, "NONE") == 0)           /* resetting the value */
-          p = NULL;
-        else
-          p = vim_strsave(buf);
-        if (key[2] == 'A') {
-          free(HL_TABLE()[idx].sg_start);
-          HL_TABLE()[idx].sg_start = p;
-        } else {
-          free(HL_TABLE()[idx].sg_stop);
-          HL_TABLE()[idx].sg_stop = p;
-        }
-      } else {
-        EMSG2(_("E423: Illegal argument: %s"), key_start);
-        error = TRUE;
-        break;
-      }
-
-      /*
-       * When highlighting has been given for a group, don't link it.
-       */
-      if (!init || !(HL_TABLE()[idx].sg_set & SG_LINK))
-        HL_TABLE()[idx].sg_link = 0;
-
-      /*
-       * Continue with next argument.
-       */
-      linep = skipwhite(linep);
-    }
-
-  /*
-   * If there is an error, and it's a new entry, remove it from the table.
-   */
-  if (error && idx == highlight_ga.ga_len)
-    syn_unadd_group();
-  else {
-    if (is_normal_group) {
-      HL_TABLE()[idx].sg_term_attr = 0;
-      HL_TABLE()[idx].sg_cterm_attr = 0;
-    } else
-      set_hl_attr(idx);
-    HL_TABLE()[idx].sg_scriptID = current_SID;
-    redraw_all_later(NOT_VALID);
-  }
-  free(key);
-  free(arg);
-
-  /* Only call highlight_changed() once, after sourcing a syntax file */
-  need_highlight_changed = TRUE;
-}
-
-#if defined(EXITFREE) || defined(PROTO)
-void free_highlight(void)
-{
-  int i;
-
-  for (i = 0; i < highlight_ga.ga_len; ++i) {
-    highlight_clear(i);
-    free(HL_TABLE()[i].sg_name);
-    free(HL_TABLE()[i].sg_name_u);
-  }
-  ga_clear(&highlight_ga);
-}
-
-#endif
-
-/*
- * Reset the cterm colors to what they were before Vim was started, if
- * possible.  Otherwise reset them to zero.
- */
-void restore_cterm_colors(void)
-{
-  cterm_normal_fg_color = 0;
-  cterm_normal_fg_bold = 0;
-  cterm_normal_bg_color = 0;
-}
-
-/*
- * Return TRUE if highlight group "idx" has any settings.
- * When "check_link" is TRUE also check for an existing link.
- */
-static int hl_has_settings(int idx, int check_link)
-{
-  return HL_TABLE()[idx].sg_term_attr != 0
-         || HL_TABLE()[idx].sg_cterm_attr != 0
-         || (check_link && (HL_TABLE()[idx].sg_set & SG_LINK));
-}
-
-/*
- * Clear highlighting for one group.
- */
-static void highlight_clear(int idx)
-{
-  HL_TABLE()[idx].sg_term = 0;
-  free(HL_TABLE()[idx].sg_start);
-  HL_TABLE()[idx].sg_start = NULL;
-  free(HL_TABLE()[idx].sg_stop);
-  HL_TABLE()[idx].sg_stop = NULL;
-  HL_TABLE()[idx].sg_term_attr = 0;
-  HL_TABLE()[idx].sg_cterm = 0;
-  HL_TABLE()[idx].sg_cterm_bold = FALSE;
-  HL_TABLE()[idx].sg_cterm_fg = 0;
-  HL_TABLE()[idx].sg_cterm_bg = 0;
-  HL_TABLE()[idx].sg_cterm_attr = 0;
-  HL_TABLE()[idx].sg_gui = 0;
-  free(HL_TABLE()[idx].sg_gui_fg_name);
-  HL_TABLE()[idx].sg_gui_fg_name = NULL;
-  free(HL_TABLE()[idx].sg_gui_bg_name);
-  HL_TABLE()[idx].sg_gui_bg_name = NULL;
-  free(HL_TABLE()[idx].sg_gui_sp_name);
-  HL_TABLE()[idx].sg_gui_sp_name = NULL;
-  /* Clear the script ID only when there is no link, since that is not
-   * cleared. */
-  if (HL_TABLE()[idx].sg_link == 0)
-    HL_TABLE()[idx].sg_scriptID = 0;
-}
-
-
-/*
- * Table with the specifications for an attribute number.
- * Note that this table is used by ALL buffers.  This is required because the
- * GUI can redraw at any time for any buffer.
- */
-static garray_T term_attr_table = {0, 0, 0, 0, NULL};
-
-#define TERM_ATTR_ENTRY(idx) ((attrentry_T *)term_attr_table.ga_data)[idx]
-
-static garray_T cterm_attr_table = {0, 0, 0, 0, NULL};
-
-#define CTERM_ATTR_ENTRY(idx) ((attrentry_T *)cterm_attr_table.ga_data)[idx]
-
-
-/*
- * Return the attr number for a set of colors and font.
- * Add a new entry to the term_attr_table, cterm_attr_table or gui_attr_table
- * if the combination is new.
- * Return 0 for error.
- */
-static int get_attr_entry(garray_T *table, attrentry_T *aep)
-{
-  int i;
-  attrentry_T *taep;
-  static int recursive = FALSE;
-
-  /*
-   * Init the table, in case it wasn't done yet.
-   */
-  table->ga_itemsize = sizeof(attrentry_T);
-  table->ga_growsize = 7;
-
-  /*
-   * Try to find an entry with the same specifications.
-   */
-  for (i = 0; i < table->ga_len; ++i) {
-    taep = &(((attrentry_T *)table->ga_data)[i]);
-    if (       aep->ae_attr == taep->ae_attr
-               && (
-                 (table == &term_attr_table
-                  && (aep->ae_u.term.start == NULL)
-                  == (taep->ae_u.term.start == NULL)
-                  && (aep->ae_u.term.start == NULL
-                      || STRCMP(aep->ae_u.term.start,
-                          taep->ae_u.term.start) == 0)
-                  && (aep->ae_u.term.stop == NULL)
-                  == (taep->ae_u.term.stop == NULL)
-                  && (aep->ae_u.term.stop == NULL
-                      || STRCMP(aep->ae_u.term.stop,
-                          taep->ae_u.term.stop) == 0))
-                 || (table == &cterm_attr_table
-                     && aep->ae_u.cterm.fg_color
-                     == taep->ae_u.cterm.fg_color
-                     && aep->ae_u.cterm.bg_color
-                     == taep->ae_u.cterm.bg_color)
-                 ))
-
-      return i + ATTR_OFF;
-  }
-
-  if (table->ga_len + ATTR_OFF > MAX_TYPENR) {
-    /*
-     * Running out of attribute entries!  remove all attributes, and
-     * compute new ones for all groups.
-     * When called recursively, we are really out of numbers.
-     */
-    if (recursive) {
-      EMSG(_("E424: Too many different highlighting attributes in use"));
-      return 0;
-    }
-    recursive = TRUE;
-
-    clear_hl_tables();
-
-    must_redraw = CLEAR;
-
-    for (i = 0; i < highlight_ga.ga_len; ++i)
-      set_hl_attr(i);
-
-    recursive = FALSE;
-  }
-
-  /*
-   * This is a new combination of colors and font, add an entry.
-   */
-  ga_grow(table, 1);
-
-  taep = &(((attrentry_T *)table->ga_data)[table->ga_len]);
-  memset(taep, 0, sizeof(attrentry_T));
-  taep->ae_attr = aep->ae_attr;
-  if (table == &term_attr_table) {
-    if (aep->ae_u.term.start == NULL)
-      taep->ae_u.term.start = NULL;
-    else
-      taep->ae_u.term.start = vim_strsave(aep->ae_u.term.start);
-    if (aep->ae_u.term.stop == NULL)
-      taep->ae_u.term.stop = NULL;
-    else
-      taep->ae_u.term.stop = vim_strsave(aep->ae_u.term.stop);
-  } else if (table == &cterm_attr_table)   {
-    taep->ae_u.cterm.fg_color = aep->ae_u.cterm.fg_color;
-    taep->ae_u.cterm.bg_color = aep->ae_u.cterm.bg_color;
-  }
-  ++table->ga_len;
-  return table->ga_len - 1 + ATTR_OFF;
-}
-
-/*
- * Clear all highlight tables.
- */
-void clear_hl_tables(void)
-{
-  int i;
-  attrentry_T *taep;
-
-  for (i = 0; i < term_attr_table.ga_len; ++i) {
-    taep = &(((attrentry_T *)term_attr_table.ga_data)[i]);
-    free(taep->ae_u.term.start);
-    free(taep->ae_u.term.stop);
-  }
-  ga_clear(&term_attr_table);
-  ga_clear(&cterm_attr_table);
-}
-
-/*
- * Combine special attributes (e.g., for spelling) with other attributes
- * (e.g., for syntax highlighting).
- * "prim_attr" overrules "char_attr".
- * This creates a new group when required.
- * Since we expect there to be few spelling mistakes we don't cache the
- * result.
- * Return the resulting attributes.
- */
-int hl_combine_attr(int char_attr, int prim_attr)
-{
-  attrentry_T *char_aep = NULL;
-  attrentry_T *spell_aep;
-  attrentry_T new_en;
-
-  if (char_attr == 0)
-    return prim_attr;
-  if (char_attr <= HL_ALL && prim_attr <= HL_ALL)
-    return char_attr | prim_attr;
-
-  if (t_colors > 1) {
-    if (char_attr > HL_ALL)
-      char_aep = syn_cterm_attr2entry(char_attr);
-    if (char_aep != NULL)
-      new_en = *char_aep;
-    else {
-      memset(&new_en, 0, sizeof(new_en));
-      if (char_attr <= HL_ALL)
-        new_en.ae_attr = char_attr;
-    }
-
-    if (prim_attr <= HL_ALL)
-      new_en.ae_attr |= prim_attr;
-    else {
-      spell_aep = syn_cterm_attr2entry(prim_attr);
-      if (spell_aep != NULL) {
-        new_en.ae_attr |= spell_aep->ae_attr;
-        if (spell_aep->ae_u.cterm.fg_color > 0)
-          new_en.ae_u.cterm.fg_color = spell_aep->ae_u.cterm.fg_color;
-        if (spell_aep->ae_u.cterm.bg_color > 0)
-          new_en.ae_u.cterm.bg_color = spell_aep->ae_u.cterm.bg_color;
-      }
-    }
-    return get_attr_entry(&cterm_attr_table, &new_en);
-  }
-
-  if (char_attr > HL_ALL)
-    char_aep = syn_term_attr2entry(char_attr);
-  if (char_aep != NULL)
-    new_en = *char_aep;
-  else {
-    memset(&new_en, 0, sizeof(new_en));
-    if (char_attr <= HL_ALL)
-      new_en.ae_attr = char_attr;
-  }
-
-  if (prim_attr <= HL_ALL)
-    new_en.ae_attr |= prim_attr;
-  else {
-    spell_aep = syn_term_attr2entry(prim_attr);
-    if (spell_aep != NULL) {
-      new_en.ae_attr |= spell_aep->ae_attr;
-      if (spell_aep->ae_u.term.start != NULL) {
-        new_en.ae_u.term.start = spell_aep->ae_u.term.start;
-        new_en.ae_u.term.stop = spell_aep->ae_u.term.stop;
-      }
-    }
-  }
-  return get_attr_entry(&term_attr_table, &new_en);
-}
-
-
-/*
- * Get the highlight attributes (HL_BOLD etc.) from an attribute nr.
- * Only to be used when "attr" > HL_ALL.
- */
-int syn_attr2attr(int attr)
-{
-  attrentry_T *aep;
-
-  if (t_colors > 1)
-    aep = syn_cterm_attr2entry(attr);
-  else
-    aep = syn_term_attr2entry(attr);
-
-  if (aep == NULL)          /* highlighting not set */
-    return 0;
-  return aep->ae_attr;
-}
-
-
-attrentry_T *syn_term_attr2entry(int attr)
-{
-  attr -= ATTR_OFF;
-  if (attr >= term_attr_table.ga_len)       /* did ":syntax clear" */
-    return NULL;
-  return &(TERM_ATTR_ENTRY(attr));
-}
-
-attrentry_T *syn_cterm_attr2entry(int attr)
-{
-  attr -= ATTR_OFF;
-  if (attr >= cterm_attr_table.ga_len)          /* did ":syntax clear" */
-    return NULL;
-  return &(CTERM_ATTR_ENTRY(attr));
-}
-
-#define LIST_ATTR   1
-#define LIST_STRING 2
-#define LIST_INT    3
-
-static void highlight_list_one(int id)
-{
-  struct hl_group     *sgp;
-  int didh = FALSE;
-
-  sgp = &HL_TABLE()[id - 1];        /* index is ID minus one */
-
-  didh = highlight_list_arg(id, didh, LIST_ATTR,
-      sgp->sg_term, NULL, "term");
-  didh = highlight_list_arg(id, didh, LIST_STRING,
-      0, sgp->sg_start, "start");
-  didh = highlight_list_arg(id, didh, LIST_STRING,
-      0, sgp->sg_stop, "stop");
-
-  didh = highlight_list_arg(id, didh, LIST_ATTR,
-      sgp->sg_cterm, NULL, "cterm");
-  didh = highlight_list_arg(id, didh, LIST_INT,
-      sgp->sg_cterm_fg, NULL, "ctermfg");
-  didh = highlight_list_arg(id, didh, LIST_INT,
-      sgp->sg_cterm_bg, NULL, "ctermbg");
-
-  didh = highlight_list_arg(id, didh, LIST_ATTR,
-      sgp->sg_gui, NULL, "gui");
-  didh = highlight_list_arg(id, didh, LIST_STRING,
-      0, sgp->sg_gui_fg_name, "guifg");
-  didh = highlight_list_arg(id, didh, LIST_STRING,
-      0, sgp->sg_gui_bg_name, "guibg");
-  didh = highlight_list_arg(id, didh, LIST_STRING,
-      0, sgp->sg_gui_sp_name, "guisp");
-
-  if (sgp->sg_link && !got_int) {
-    (void)syn_list_header(didh, 9999, id);
-    didh = TRUE;
-    msg_puts_attr((char_u *)"links to", hl_attr(HLF_D));
-    msg_putchar(' ');
-    msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name);
-  }
-
-  if (!didh)
-    highlight_list_arg(id, didh, LIST_STRING, 0, (char_u *)"cleared", "");
-  if (p_verbose > 0)
-    last_set_msg(sgp->sg_scriptID);
-}
-
-static int highlight_list_arg(int id, int didh, int type, int iarg, char_u *sarg, char *name)
-{
-  char_u buf[100];
-  char_u      *ts;
-  int i;
-
-  if (got_int)
-    return FALSE;
-  if (type == LIST_STRING ? (sarg != NULL) : (iarg != 0)) {
-    ts = buf;
-    if (type == LIST_INT)
-      sprintf((char *)buf, "%d", iarg - 1);
-    else if (type == LIST_STRING)
-      ts = sarg;
-    else {   /* type == LIST_ATTR */
-      buf[0] = NUL;
-      for (i = 0; hl_attr_table[i] != 0; ++i) {
-        if (iarg & hl_attr_table[i]) {
-          if (buf[0] != NUL)
-            vim_strcat(buf, (char_u *)",", 100);
-          vim_strcat(buf, (char_u *)hl_name_table[i], 100);
-          iarg &= ~hl_attr_table[i];                /* don't want "inverse" */
-        }
-      }
-    }
-
-    (void)syn_list_header(didh,
-        (int)(vim_strsize(ts) + STRLEN(name) + 1), id);
-    didh = TRUE;
-    if (!got_int) {
-      if (*name != NUL) {
-        MSG_PUTS_ATTR(name, hl_attr(HLF_D));
-        MSG_PUTS_ATTR("=", hl_attr(HLF_D));
-      }
-      msg_outtrans(ts);
-    }
-  }
-  return didh;
-}
-
-/*
- * Return "1" if highlight group "id" has attribute "flag".
- * Return NULL otherwise.
- */
-char_u *
-highlight_has_attr (
-    int id,
-    int flag,
-    int modec              /* 'g' for GUI, 'c' for cterm, 't' for term */
-)
-{
-  int attr;
-
-  if (id <= 0 || id > highlight_ga.ga_len)
-    return NULL;
-
-  if (modec == 'g')
-    attr = HL_TABLE()[id - 1].sg_gui;
-  else if (modec == 'c')
-    attr = HL_TABLE()[id - 1].sg_cterm;
-  else
-    attr = HL_TABLE()[id - 1].sg_term;
-
-  if (attr & flag)
-    return (char_u *)"1";
-  return NULL;
-}
-
-/*
- * Return color name of highlight group "id".
- */
-char_u *
-highlight_color (
-    int id,
-    char_u *what,      /* "font", "fg", "bg", "sp", "fg#", "bg#" or "sp#" */
-    int modec              /* 'g' for GUI, 'c' for cterm, 't' for term */
-)
-{
-  static char_u name[20];
-  int n;
-  int fg = FALSE;
-  int sp = FALSE;
-  int font = FALSE;
-
-  if (id <= 0 || id > highlight_ga.ga_len)
-    return NULL;
-
-  if (TOLOWER_ASC(what[0]) == 'f' && TOLOWER_ASC(what[1]) == 'g')
-    fg = TRUE;
-  else if (TOLOWER_ASC(what[0]) == 'f' && TOLOWER_ASC(what[1]) == 'o'
-           && TOLOWER_ASC(what[2]) == 'n' && TOLOWER_ASC(what[3]) == 't')
-    font = TRUE;
-  else if (TOLOWER_ASC(what[0]) == 's' && TOLOWER_ASC(what[1]) == 'p')
-    sp = TRUE;
-  else if (!(TOLOWER_ASC(what[0]) == 'b' && TOLOWER_ASC(what[1]) == 'g'))
-    return NULL;
-  if (modec == 'g') {
-    if (fg)
-      return HL_TABLE()[id - 1].sg_gui_fg_name;
-    if (sp)
-      return HL_TABLE()[id - 1].sg_gui_sp_name;
-    return HL_TABLE()[id - 1].sg_gui_bg_name;
-  }
-  if (font || sp)
-    return NULL;
-  if (modec == 'c') {
-    if (fg)
-      n = HL_TABLE()[id - 1].sg_cterm_fg - 1;
-    else
-      n = HL_TABLE()[id - 1].sg_cterm_bg - 1;
-    sprintf((char *)name, "%d", n);
-    return name;
-  }
-  /* term doesn't have color */
-  return NULL;
-}
-
-/*
- * Output the syntax list header.
- * Return TRUE when started a new line.
- */
-static int 
-syn_list_header (
-    int did_header,                 /* did header already */
-    int outlen,                     /* length of string that comes */
-    int id                         /* highlight group id */
-)
-{
-  int endcol = 19;
-  int newline = TRUE;
-
-  if (!did_header) {
-    msg_putchar('\n');
-    if (got_int)
-      return TRUE;
-    msg_outtrans(HL_TABLE()[id - 1].sg_name);
-    endcol = 15;
-  } else if (msg_col + outlen + 1 >= Columns)   {
-    msg_putchar('\n');
-    if (got_int)
-      return TRUE;
-  } else {
-    if (msg_col >= endcol)      /* wrap around is like starting a new line */
-      newline = FALSE;
-  }
-
-  if (msg_col >= endcol)        /* output at least one space */
-    endcol = msg_col + 1;
-  if (Columns <= endcol)        /* avoid hang for tiny window */
-    endcol = Columns - 1;
-
-  msg_advance(endcol);
-
-  /* Show "xxx" with the attributes. */
-  if (!did_header) {
-    msg_puts_attr((char_u *)"xxx", syn_id2attr(id));
-    msg_putchar(' ');
-  }
-
-  return newline;
-}
-
-/*
- * Set the attribute numbers for a highlight group.
- * Called after one of the attributes has changed.
- */
-static void 
-set_hl_attr (
-    int idx                    /* index in array */
-)
-{
-  attrentry_T at_en;
-  struct hl_group     *sgp = HL_TABLE() + idx;
-
-  /* The "Normal" group doesn't need an attribute number */
-  if (sgp->sg_name_u != NULL && STRCMP(sgp->sg_name_u, "NORMAL") == 0)
-    return;
-
-  /*
-   * For the term mode: If there are other than "normal" highlighting
-   * attributes, need to allocate an attr number.
-   */
-  if (sgp->sg_start == NULL && sgp->sg_stop == NULL)
-    sgp->sg_term_attr = sgp->sg_term;
-  else {
-    at_en.ae_attr = sgp->sg_term;
-    at_en.ae_u.term.start = sgp->sg_start;
-    at_en.ae_u.term.stop = sgp->sg_stop;
-    sgp->sg_term_attr = get_attr_entry(&term_attr_table, &at_en);
-  }
-
-  /*
-   * For the color term mode: If there are other than "normal"
-   * highlighting attributes, need to allocate an attr number.
-   */
-  if (sgp->sg_cterm_fg == 0 && sgp->sg_cterm_bg == 0)
-    sgp->sg_cterm_attr = sgp->sg_cterm;
-  else {
-    at_en.ae_attr = sgp->sg_cterm;
-    at_en.ae_u.cterm.fg_color = sgp->sg_cterm_fg;
-    at_en.ae_u.cterm.bg_color = sgp->sg_cterm_bg;
-    sgp->sg_cterm_attr = get_attr_entry(&cterm_attr_table, &at_en);
-  }
-}
-
-/*
- * Lookup a highlight group name and return it's ID.
- * If it is not found, 0 is returned.
- */
-int syn_name2id(char_u *name)
-{
-  int i;
-  char_u name_u[200];
-
-  /* Avoid using stricmp() too much, it's slow on some systems */
-  /* Avoid alloc()/free(), these are slow too.  ID names over 200 chars
-   * don't deserve to be found! */
-  vim_strncpy(name_u, name, 199);
-  vim_strup(name_u);
-  for (i = highlight_ga.ga_len; --i >= 0; )
-    if (HL_TABLE()[i].sg_name_u != NULL
-        && STRCMP(name_u, HL_TABLE()[i].sg_name_u) == 0)
-      break;
-  return i + 1;
-}
-
-/*
- * Return TRUE if highlight group "name" exists.
- */
-int highlight_exists(char_u *name)
-{
-  return syn_name2id(name) > 0;
-}
-
-/*
- * Return the name of highlight group "id".
- * When not a valid ID return an empty string.
- */
-char_u *syn_id2name(int id)
-{
-  if (id <= 0 || id > highlight_ga.ga_len)
-    return (char_u *)"";
-  return HL_TABLE()[id - 1].sg_name;
-}
-
-/*
- * Like syn_name2id(), but take a pointer + length argument.
- */
-int syn_namen2id(char_u *linep, int len)
-{
-  char_u  *name;
-  int id = 0;
-
-  name = vim_strnsave(linep, len);
-  if (name != NULL) {
-    id = syn_name2id(name);
-    free(name);
-  }
-  return id;
-}
-
-/*
- * Find highlight group name in the table and return it's ID.
- * The argument is a pointer to the name and the length of the name.
- * If it doesn't exist yet, a new entry is created.
- * Return 0 for failure.
- */
-int syn_check_group(char_u *pp, int len)
-{
-  int id;
-  char_u  *name;
-
-  name = vim_strnsave(pp, len);
-  if (name == NULL)
-    return 0;
-
-  id = syn_name2id(name);
-  if (id == 0)                          /* doesn't exist yet */
-    id = syn_add_group(name);
-  else
-    free(name);
-  return id;
-}
-
-/*
- * Add new highlight group and return it's ID.
- * "name" must be an allocated string, it will be consumed.
- * Return 0 for failure.
- */
-static int syn_add_group(char_u *name)
-{
-  char_u      *p;
-
-  /* Check that the name is ASCII letters, digits and underscore. */
-  for (p = name; *p != NUL; ++p) {
-    if (!vim_isprintc(*p)) {
-      EMSG(_("E669: Unprintable character in group name"));
-      free(name);
-      return 0;
-    } else if (!ASCII_ISALNUM(*p) && *p != '_')   {
-      /* This is an error, but since there previously was no check only
-       * give a warning. */
-      msg_source(hl_attr(HLF_W));
-      MSG(_("W18: Invalid character in group name"));
-      break;
-    }
-  }
-
-  /*
-   * First call for this growarray: init growing array.
-   */
-  if (highlight_ga.ga_data == NULL) {
-    highlight_ga.ga_itemsize = sizeof(struct hl_group);
-    highlight_ga.ga_growsize = 10;
-  }
-
-  if (highlight_ga.ga_len >= MAX_HL_ID) {
-    EMSG(_("E849: Too many highlight and syntax groups"));
-    free(name);
-    return 0;
-  }
-
-  /*
-   * Make room for at least one other syntax_highlight entry.
-   */
-  ga_grow(&highlight_ga, 1);
-
-  memset(&(HL_TABLE()[highlight_ga.ga_len]), 0, sizeof(struct hl_group));
-  HL_TABLE()[highlight_ga.ga_len].sg_name = name;
-  HL_TABLE()[highlight_ga.ga_len].sg_name_u = vim_strsave_up(name);
-  ++highlight_ga.ga_len;
-
-  return highlight_ga.ga_len;               /* ID is index plus one */
-}
-
-/*
- * When, just after calling syn_add_group(), an error is discovered, this
- * function deletes the new name.
- */
-static void syn_unadd_group(void)
-{
-  --highlight_ga.ga_len;
-  free(HL_TABLE()[highlight_ga.ga_len].sg_name);
-  free(HL_TABLE()[highlight_ga.ga_len].sg_name_u);
-}
-
-/*
- * Translate a group ID to highlight attributes.
- */
-int syn_id2attr(int hl_id)
-{
-  int attr;
-  struct hl_group     *sgp;
-
-  hl_id = syn_get_final_id(hl_id);
-  sgp = &HL_TABLE()[hl_id - 1];             /* index is ID minus one */
-
-  if (t_colors > 1)
-    attr = sgp->sg_cterm_attr;
-  else
-    attr = sgp->sg_term_attr;
-
-  return attr;
-}
-
-
-/*
- * Translate a group ID to the final group ID (following links).
- */
-int syn_get_final_id(int hl_id)
-{
-  int count;
-  struct hl_group     *sgp;
-
-  if (hl_id > highlight_ga.ga_len || hl_id < 1)
-    return 0;                           /* Can be called from eval!! */
-
-  /*
-   * Follow links until there is no more.
-   * Look out for loops!  Break after 100 links.
-   */
-  for (count = 100; --count >= 0; ) {
-    sgp = &HL_TABLE()[hl_id - 1];           /* index is ID minus one */
-    if (sgp->sg_link == 0 || sgp->sg_link > highlight_ga.ga_len)
-      break;
-    hl_id = sgp->sg_link;
-  }
-
-  return hl_id;
-}
-
-
-/*
- * Translate the 'highlight' option into attributes in highlight_attr[] and
- * set up the user highlights User1..9.  If FEAT_STL_OPT is in use, a set of
- * corresponding highlights to use on top of HLF_SNC is computed.
- * Called only when the 'highlight' option has been changed and upon first
- * screen redraw after any :highlight command.
- * Return FAIL when an invalid flag is found in 'highlight'.  OK otherwise.
- */
-int highlight_changed(void)
-{
-  int hlf;
-  int i;
-  char_u      *p;
-  int attr;
-  char_u      *end;
-  int id;
-#ifdef USER_HIGHLIGHT
-  char_u userhl[10];
-  int id_SNC = -1;
-  int id_S = -1;
-  int hlcnt;
-#endif
-  static int hl_flags[HLF_COUNT] = HL_FLAGS;
-
-  need_highlight_changed = FALSE;
-
-  /*
-   * Clear all attributes.
-   */
-  for (hlf = 0; hlf < (int)HLF_COUNT; ++hlf)
-    highlight_attr[hlf] = 0;
-
-  /*
-   * First set all attributes to their default value.
-   * Then use the attributes from the 'highlight' option.
-   */
-  for (i = 0; i < 2; ++i) {
-    if (i)
-      p = p_hl;
-    else
-      p = get_highlight_default();
-    if (p == NULL)          /* just in case */
-      continue;
-
-    while (*p) {
-      for (hlf = 0; hlf < (int)HLF_COUNT; ++hlf)
-        if (hl_flags[hlf] == *p)
-          break;
-      ++p;
-      if (hlf == (int)HLF_COUNT || *p == NUL)
-        return FAIL;
-
-      /*
-       * Allow several hl_flags to be combined, like "bu" for
-       * bold-underlined.
-       */
-      attr = 0;
-      for (; *p && *p != ','; ++p) {                /* parse upto comma */
-        if (vim_iswhite(*p))                        /* ignore white space */
-          continue;
-
-        if (attr > HL_ALL)          /* Combination with ':' is not allowed. */
-          return FAIL;
-
-        switch (*p) {
-        case 'b':   attr |= HL_BOLD;
-          break;
-        case 'i':   attr |= HL_ITALIC;
-          break;
-        case '-':
-        case 'n':                                   /* no highlighting */
-          break;
-        case 'r':   attr |= HL_INVERSE;
-          break;
-        case 's':   attr |= HL_STANDOUT;
-          break;
-        case 'u':   attr |= HL_UNDERLINE;
-          break;
-        case 'c':   attr |= HL_UNDERCURL;
-          break;
-        case ':':   ++p;                            /* highlight group name */
-          if (attr || *p == NUL)                         /* no combinations */
-            return FAIL;
-          end = vim_strchr(p, ',');
-          if (end == NULL)
-            end = p + STRLEN(p);
-          id = syn_check_group(p, (int)(end - p));
-          if (id == 0)
-            return FAIL;
-          attr = syn_id2attr(id);
-          p = end - 1;
-#if defined(FEAT_STL_OPT) && defined(USER_HIGHLIGHT)
-          if (hlf == (int)HLF_SNC)
-            id_SNC = syn_get_final_id(id);
-          else if (hlf == (int)HLF_S)
-            id_S = syn_get_final_id(id);
-#endif
-          break;
-        default:    return FAIL;
-        }
-      }
-      highlight_attr[hlf] = attr;
-
-      p = skip_to_option_part(p);           /* skip comma and spaces */
-    }
-  }
-
-#ifdef USER_HIGHLIGHT
-  /* Setup the user highlights
-   *
-   * Temporarily  utilize 10 more hl entries.  Have to be in there
-   * simultaneously in case of table overflows in get_attr_entry()
-   */
-  ga_grow(&highlight_ga, 10);
-  hlcnt = highlight_ga.ga_len;
-  if (id_S == 0) {  /* Make sure id_S is always valid to simplify code below */
-    memset(&HL_TABLE()[hlcnt + 9], 0, sizeof(struct hl_group));
-    HL_TABLE()[hlcnt + 9].sg_term = highlight_attr[HLF_S];
-    id_S = hlcnt + 10;
-  }
-  for (i = 0; i < 9; i++) {
-    sprintf((char *)userhl, "User%d", i + 1);
-    id = syn_name2id(userhl);
-    if (id == 0) {
-      highlight_user[i] = 0;
-      highlight_stlnc[i] = 0;
-    } else {
-      struct hl_group *hlt = HL_TABLE();
-
-      highlight_user[i] = syn_id2attr(id);
-      if (id_SNC == 0) {
-        memset(&hlt[hlcnt + i], 0, sizeof(struct hl_group));
-        hlt[hlcnt + i].sg_term = highlight_attr[HLF_SNC];
-        hlt[hlcnt + i].sg_cterm = highlight_attr[HLF_SNC];
-        hlt[hlcnt + i].sg_gui = highlight_attr[HLF_SNC];
-      } else
-        memmove(&hlt[hlcnt + i],
-            &hlt[id_SNC - 1],
-            sizeof(struct hl_group));
-      hlt[hlcnt + i].sg_link = 0;
-
-      /* Apply difference between UserX and HLF_S to HLF_SNC */
-      hlt[hlcnt + i].sg_term ^=
-        hlt[id - 1].sg_term ^ hlt[id_S - 1].sg_term;
-      if (hlt[id - 1].sg_start != hlt[id_S - 1].sg_start)
-        hlt[hlcnt + i].sg_start = hlt[id - 1].sg_start;
-      if (hlt[id - 1].sg_stop != hlt[id_S - 1].sg_stop)
-        hlt[hlcnt + i].sg_stop = hlt[id - 1].sg_stop;
-      hlt[hlcnt + i].sg_cterm ^=
-        hlt[id - 1].sg_cterm ^ hlt[id_S - 1].sg_cterm;
-      if (hlt[id - 1].sg_cterm_fg != hlt[id_S - 1].sg_cterm_fg)
-        hlt[hlcnt + i].sg_cterm_fg = hlt[id - 1].sg_cterm_fg;
-      if (hlt[id - 1].sg_cterm_bg != hlt[id_S - 1].sg_cterm_bg)
-        hlt[hlcnt + i].sg_cterm_bg = hlt[id - 1].sg_cterm_bg;
-      hlt[hlcnt + i].sg_gui ^=
-        hlt[id - 1].sg_gui ^ hlt[id_S - 1].sg_gui;
-      highlight_ga.ga_len = hlcnt + i + 1;
-      set_hl_attr(hlcnt + i);           /* At long last we can apply */
-      highlight_stlnc[i] = syn_id2attr(hlcnt + i + 1);
-    }
-  }
-  highlight_ga.ga_len = hlcnt;
-
-#endif /* USER_HIGHLIGHT */
-
-  return OK;
-}
-
-static void highlight_list(void);
-static void highlight_list_two(int cnt, int attr);
-
-/*
- * Handle command line completion for :highlight command.
- */
-void set_context_in_highlight_cmd(expand_T *xp, char_u *arg)
-{
-  char_u      *p;
-
-  /* Default: expand group names */
-  xp->xp_context = EXPAND_HIGHLIGHT;
-  xp->xp_pattern = arg;
-  include_link = 2;
-  include_default = 1;
-
-  /* (part of) subcommand already typed */
-  if (*arg != NUL) {
-    p = skiptowhite(arg);
-    if (*p != NUL) {                    /* past "default" or group name */
-      include_default = 0;
-      if (STRNCMP("default", arg, p - arg) == 0) {
-        arg = skipwhite(p);
-        xp->xp_pattern = arg;
-        p = skiptowhite(arg);
-      }
-      if (*p != NUL) {                          /* past group name */
-        include_link = 0;
-        if (arg[1] == 'i' && arg[0] == 'N')
-          highlight_list();
-        if (STRNCMP("link", arg, p - arg) == 0
-            || STRNCMP("clear", arg, p - arg) == 0) {
-          xp->xp_pattern = skipwhite(p);
-          p = skiptowhite(xp->xp_pattern);
-          if (*p != NUL) {                      /* past first group name */
-            xp->xp_pattern = skipwhite(p);
-            p = skiptowhite(xp->xp_pattern);
-          }
-        }
-        if (*p != NUL)                          /* past group name(s) */
-          xp->xp_context = EXPAND_NOTHING;
-      }
-    }
-  }
-}
-
-/*
- * List highlighting matches in a nice way.
- */
-static void highlight_list(void)
-{
-  int i;
-
-  for (i = 10; --i >= 0; )
-    highlight_list_two(i, hl_attr(HLF_D));
-  for (i = 40; --i >= 0; )
-    highlight_list_two(99, 0);
-}
-
-static void highlight_list_two(int cnt, int attr)
-{
-  msg_puts_attr((char_u *)&("N \bI \b!  \b"[cnt / 11]), attr);
-  msg_clr_eos();
-  out_flush();
-  ui_delay(cnt == 99 ? 40L : (long)cnt * 50L, FALSE);
-}
-
-
-#if defined(FEAT_CMDL_COMPL) || (defined(FEAT_SYN_HL) && defined(FEAT_EVAL)) \
-  || defined(FEAT_SIGNS) || defined(PROTO)
-/*
- * Function given to ExpandGeneric() to obtain the list of group names.
- * Also used for synIDattr() function.
- */
-char_u *get_highlight_name(expand_T *xp, int idx)
-{
-  //TODO: 'xp' is unused
-  if (idx == highlight_ga.ga_len && include_none != 0)
-    return (char_u *)"none";
-  if (idx == highlight_ga.ga_len + include_none && include_default != 0)
-    return (char_u *)"default";
-  if (idx == highlight_ga.ga_len + include_none + include_default
-      && include_link != 0)
-    return (char_u *)"link";
-  if (idx == highlight_ga.ga_len + include_none + include_default + 1
-      && include_link != 0)
-    return (char_u *)"clear";
-  if (idx < 0 || idx >= highlight_ga.ga_len)
-    return NULL;
-  return HL_TABLE()[idx].sg_name;
-}
-#endif
-
-
-/**************************************
-*  End of Highlighting stuff	      *
-**************************************/