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-rw-r--r--src/ex_cmds.c6374
1 files changed, 0 insertions, 6374 deletions
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
deleted file mode 100644
index 3613a02cb3..0000000000
--- a/src/ex_cmds.c
+++ /dev/null
@@ -1,6374 +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.
- */
-
-/*
- * ex_cmds.c: some functions for command line commands
- */
-
-#include <string.h>
-#include <stdlib.h>
-
-#include "vim.h"
-#include "version_defs.h"
-#include "ex_cmds.h"
-#include "buffer.h"
-#include "charset.h"
-#include "diff.h"
-#include "digraph.h"
-#include "edit.h"
-#include "eval.h"
-#include "ex_cmds2.h"
-#include "ex_docmd.h"
-#include "ex_eval.h"
-#include "ex_getln.h"
-#include "farsi.h"
-#include "fileio.h"
-#include "fold.h"
-#include "getchar.h"
-#include "indent.h"
-#include "main.h"
-#include "mark.h"
-#include "mbyte.h"
-#include "memline.h"
-#include "message.h"
-#include "misc1.h"
-#include "misc2.h"
-#include "garray.h"
-#include "memory.h"
-#include "move.h"
-#include "normal.h"
-#include "ops.h"
-#include "option.h"
-#include "os_unix.h"
-#include "path.h"
-#include "quickfix.h"
-#include "regexp.h"
-#include "screen.h"
-#include "search.h"
-#include "spell.h"
-#include "syntax.h"
-#include "tag.h"
-#include "term.h"
-#include "ui.h"
-#include "undo.h"
-#include "window.h"
-#include "os/os.h"
-#include "os/shell.h"
-
-static int linelen(int *has_tab);
-static void do_filter(linenr_T line1, linenr_T line2, exarg_T *eap,
- char_u *cmd, int do_in,
- int do_out);
-static char_u *viminfo_filename(char_u *);
-static void do_viminfo(FILE *fp_in, FILE *fp_out, int flags);
-static int viminfo_encoding(vir_T *virp);
-static int read_viminfo_up_to_marks(vir_T *virp, int forceit,
- int writing);
-
-static int check_readonly(int *forceit, buf_T *buf);
-static void delbuf_msg(char_u *name);
-static int help_compare(const void *s1, const void *s2);
-
-/*
- * ":ascii" and "ga".
- */
-void do_ascii(exarg_T *eap)
-{
- int c;
- int cval;
- char buf1[20];
- char buf2[20];
- char_u buf3[7];
- int cc[MAX_MCO];
- int ci = 0;
- int len;
-
- if (enc_utf8)
- c = utfc_ptr2char(ml_get_cursor(), cc);
- else
- c = gchar_cursor();
- if (c == NUL) {
- MSG("NUL");
- return;
- }
-
- IObuff[0] = NUL;
- if (!has_mbyte || (enc_dbcs != 0 && c < 0x100) || c < 0x80) {
- if (c == NL) /* NUL is stored as NL */
- c = NUL;
- if (c == CAR && get_fileformat(curbuf) == EOL_MAC)
- cval = NL; /* NL is stored as CR */
- else
- cval = c;
- if (vim_isprintc_strict(c) && (c < ' '
- || c > '~'
- )) {
- transchar_nonprint(buf3, c);
- vim_snprintf(buf1, sizeof(buf1), " <%s>", (char *)buf3);
- } else
- buf1[0] = NUL;
- if (c >= 0x80)
- vim_snprintf(buf2, sizeof(buf2), " <M-%s>",
- (char *)transchar(c & 0x7f));
- else
- buf2[0] = NUL;
- vim_snprintf((char *)IObuff, IOSIZE,
- _("<%s>%s%s %d, Hex %02x, Octal %03o"),
- transchar(c), buf1, buf2, cval, cval, cval);
- if (enc_utf8)
- c = cc[ci++];
- else
- c = 0;
- }
-
- /* Repeat for combining characters. */
- while (has_mbyte && (c >= 0x100 || (enc_utf8 && c >= 0x80))) {
- len = (int)STRLEN(IObuff);
- /* This assumes every multi-byte char is printable... */
- if (len > 0)
- IObuff[len++] = ' ';
- IObuff[len++] = '<';
- if (enc_utf8 && utf_iscomposing(c)
-# ifdef USE_GUI
- && !gui.in_use
-# endif
- )
- IObuff[len++] = ' '; /* draw composing char on top of a space */
- len += (*mb_char2bytes)(c, IObuff + len);
- vim_snprintf((char *)IObuff + len, IOSIZE - len,
- c < 0x10000 ? _("> %d, Hex %04x, Octal %o")
- : _("> %d, Hex %08x, Octal %o"), c, c, c);
- if (ci == MAX_MCO)
- break;
- if (enc_utf8)
- c = cc[ci++];
- else
- c = 0;
- }
-
- msg(IObuff);
-}
-
-/*
- * ":left", ":center" and ":right": align text.
- */
-void ex_align(exarg_T *eap)
-{
- pos_T save_curpos;
- int len;
- int indent = 0;
- int new_indent;
- int has_tab;
- int width;
-
- if (curwin->w_p_rl) {
- /* switch left and right aligning */
- if (eap->cmdidx == CMD_right)
- eap->cmdidx = CMD_left;
- else if (eap->cmdidx == CMD_left)
- eap->cmdidx = CMD_right;
- }
-
- width = atoi((char *)eap->arg);
- save_curpos = curwin->w_cursor;
- if (eap->cmdidx == CMD_left) { /* width is used for new indent */
- if (width >= 0)
- indent = width;
- } else {
- /*
- * if 'textwidth' set, use it
- * else if 'wrapmargin' set, use it
- * if invalid value, use 80
- */
- if (width <= 0)
- width = curbuf->b_p_tw;
- if (width == 0 && curbuf->b_p_wm > 0)
- width = W_WIDTH(curwin) - curbuf->b_p_wm;
- if (width <= 0)
- width = 80;
- }
-
- if (u_save((linenr_T)(eap->line1 - 1), (linenr_T)(eap->line2 + 1)) == FAIL)
- return;
-
- for (curwin->w_cursor.lnum = eap->line1;
- curwin->w_cursor.lnum <= eap->line2; ++curwin->w_cursor.lnum) {
- if (eap->cmdidx == CMD_left) /* left align */
- new_indent = indent;
- else {
- has_tab = FALSE; /* avoid uninit warnings */
- len = linelen(eap->cmdidx == CMD_right ? &has_tab
- : NULL) - get_indent();
-
- if (len <= 0) /* skip blank lines */
- continue;
-
- if (eap->cmdidx == CMD_center)
- new_indent = (width - len) / 2;
- else {
- new_indent = width - len; /* right align */
-
- /*
- * Make sure that embedded TABs don't make the text go too far
- * to the right.
- */
- if (has_tab)
- while (new_indent > 0) {
- (void)set_indent(new_indent, 0);
- if (linelen(NULL) <= width) {
- /*
- * Now try to move the line as much as possible to
- * the right. Stop when it moves too far.
- */
- do
- (void)set_indent(++new_indent, 0);
- while (linelen(NULL) <= width);
- --new_indent;
- break;
- }
- --new_indent;
- }
- }
- }
- if (new_indent < 0)
- new_indent = 0;
- (void)set_indent(new_indent, 0); /* set indent */
- }
- changed_lines(eap->line1, 0, eap->line2 + 1, 0L);
- curwin->w_cursor = save_curpos;
- beginline(BL_WHITE | BL_FIX);
-}
-
-/*
- * Get the length of the current line, excluding trailing white space.
- */
-static int linelen(int *has_tab)
-{
- char_u *line;
- char_u *first;
- char_u *last;
- int save;
- int len;
-
- /* find the first non-blank character */
- line = ml_get_curline();
- first = skipwhite(line);
-
- /* find the character after the last non-blank character */
- for (last = first + STRLEN(first);
- last > first && vim_iswhite(last[-1]); --last)
- ;
- save = *last;
- *last = NUL;
- len = linetabsize(line); /* get line length */
- if (has_tab != NULL) /* check for embedded TAB */
- *has_tab = (vim_strrchr(first, TAB) != NULL);
- *last = save;
-
- return len;
-}
-
-/* Buffer for two lines used during sorting. They are allocated to
- * contain the longest line being sorted. */
-static char_u *sortbuf1;
-static char_u *sortbuf2;
-
-static int sort_ic; /* ignore case */
-static int sort_nr; /* sort on number */
-static int sort_rx; /* sort on regex instead of skipping it */
-
-static int sort_abort; /* flag to indicate if sorting has been interrupted */
-
-/* Struct to store info to be sorted. */
-typedef struct {
- linenr_T lnum; /* line number */
- long start_col_nr; /* starting column number or number */
- long end_col_nr; /* ending column number */
-} sorti_T;
-
-static int
-sort_compare(const void *s1, const void *s2);
-
-static int sort_compare(const void *s1, const void *s2)
-{
- sorti_T l1 = *(sorti_T *)s1;
- sorti_T l2 = *(sorti_T *)s2;
- int result = 0;
-
- /* If the user interrupts, there's no way to stop qsort() immediately, but
- * if we return 0 every time, qsort will assume it's done sorting and
- * exit. */
- if (sort_abort)
- return 0;
- fast_breakcheck();
- if (got_int)
- sort_abort = TRUE;
-
- /* When sorting numbers "start_col_nr" is the number, not the column
- * number. */
- if (sort_nr)
- result = l1.start_col_nr == l2.start_col_nr ? 0
- : l1.start_col_nr > l2.start_col_nr ? 1 : -1;
- else {
- /* We need to copy one line into "sortbuf1", because there is no
- * guarantee that the first pointer becomes invalid when obtaining the
- * second one. */
- STRNCPY(sortbuf1, ml_get(l1.lnum) + l1.start_col_nr,
- l1.end_col_nr - l1.start_col_nr + 1);
- sortbuf1[l1.end_col_nr - l1.start_col_nr] = 0;
- STRNCPY(sortbuf2, ml_get(l2.lnum) + l2.start_col_nr,
- l2.end_col_nr - l2.start_col_nr + 1);
- sortbuf2[l2.end_col_nr - l2.start_col_nr] = 0;
-
- result = sort_ic ? STRICMP(sortbuf1, sortbuf2)
- : STRCMP(sortbuf1, sortbuf2);
- }
-
- /* If two lines have the same value, preserve the original line order. */
- if (result == 0)
- return (int)(l1.lnum - l2.lnum);
- return result;
-}
-
-/*
- * ":sort".
- */
-void ex_sort(exarg_T *eap)
-{
- regmatch_T regmatch;
- int len;
- linenr_T lnum;
- long maxlen = 0;
- size_t count = (size_t)(eap->line2 - eap->line1 + 1);
- size_t i;
- char_u *p;
- char_u *s;
- char_u *s2;
- char_u c; /* temporary character storage */
- int unique = FALSE;
- long deleted;
- colnr_T start_col;
- colnr_T end_col;
- int sort_oct; /* sort on octal number */
- int sort_hex; /* sort on hex number */
-
- /* Sorting one line is really quick! */
- if (count <= 1)
- return;
-
- if (u_save((linenr_T)(eap->line1 - 1), (linenr_T)(eap->line2 + 1)) == FAIL)
- return;
- sortbuf1 = NULL;
- sortbuf2 = NULL;
- regmatch.regprog = NULL;
- sorti_T *nrs = xmalloc(count * sizeof(sorti_T));
-
- sort_abort = sort_ic = sort_rx = sort_nr = sort_oct = sort_hex = 0;
-
- for (p = eap->arg; *p != NUL; ++p) {
- if (vim_iswhite(*p))
- ;
- else if (*p == 'i')
- sort_ic = TRUE;
- else if (*p == 'r')
- sort_rx = TRUE;
- else if (*p == 'n')
- sort_nr = 2;
- else if (*p == 'o')
- sort_oct = 2;
- else if (*p == 'x')
- sort_hex = 2;
- else if (*p == 'u')
- unique = TRUE;
- else if (*p == '"') /* comment start */
- break;
- else if (check_nextcmd(p) != NULL) {
- eap->nextcmd = check_nextcmd(p);
- break;
- } else if (!ASCII_ISALPHA(*p) && regmatch.regprog == NULL) {
- s = skip_regexp(p + 1, *p, TRUE, NULL);
- if (*s != *p) {
- EMSG(_(e_invalpat));
- goto sortend;
- }
- *s = NUL;
- /* Use last search pattern if sort pattern is empty. */
- if (s == p + 1) {
- if (last_search_pat() == NULL) {
- EMSG(_(e_noprevre));
- goto sortend;
- }
- regmatch.regprog = vim_regcomp(last_search_pat(), RE_MAGIC);
- } else
- regmatch.regprog = vim_regcomp(p + 1, RE_MAGIC);
- if (regmatch.regprog == NULL)
- goto sortend;
- p = s; /* continue after the regexp */
- regmatch.rm_ic = p_ic;
- } else {
- EMSG2(_(e_invarg2), p);
- goto sortend;
- }
- }
-
- /* Can only have one of 'n', 'o' and 'x'. */
- if (sort_nr + sort_oct + sort_hex > 2) {
- EMSG(_(e_invarg));
- goto sortend;
- }
-
- /* From here on "sort_nr" is used as a flag for any number sorting. */
- sort_nr += sort_oct + sort_hex;
-
- /*
- * Make an array with all line numbers. This avoids having to copy all
- * the lines into allocated memory.
- * When sorting on strings "start_col_nr" is the offset in the line, for
- * numbers sorting it's the number to sort on. This means the pattern
- * matching and number conversion only has to be done once per line.
- * Also get the longest line length for allocating "sortbuf".
- */
- for (lnum = eap->line1; lnum <= eap->line2; ++lnum) {
- s = ml_get(lnum);
- len = (int)STRLEN(s);
- if (maxlen < len)
- maxlen = len;
-
- start_col = 0;
- end_col = len;
- if (regmatch.regprog != NULL && vim_regexec(&regmatch, s, 0)) {
- if (sort_rx) {
- start_col = (colnr_T)(regmatch.startp[0] - s);
- end_col = (colnr_T)(regmatch.endp[0] - s);
- } else
- start_col = (colnr_T)(regmatch.endp[0] - s);
- } else if (regmatch.regprog != NULL)
- end_col = 0;
-
- if (sort_nr) {
- /* Make sure vim_str2nr doesn't read any digits past the end
- * of the match, by temporarily terminating the string there */
- s2 = s + end_col;
- c = *s2;
- *s2 = NUL;
- /* Sorting on number: Store the number itself. */
- p = s + start_col;
- if (sort_hex)
- s = skiptohex(p);
- else
- s = skiptodigit(p);
- if (s > p && s[-1] == '-')
- --s; /* include preceding negative sign */
- if (*s == NUL)
- /* empty line should sort before any number */
- nrs[lnum - eap->line1].start_col_nr = -MAXLNUM;
- else
- vim_str2nr(s, NULL, NULL, sort_oct, sort_hex,
- &nrs[lnum - eap->line1].start_col_nr, NULL);
- *s2 = c;
- } else {
- /* Store the column to sort at. */
- nrs[lnum - eap->line1].start_col_nr = start_col;
- nrs[lnum - eap->line1].end_col_nr = end_col;
- }
-
- nrs[lnum - eap->line1].lnum = lnum;
-
- if (regmatch.regprog != NULL)
- fast_breakcheck();
- if (got_int)
- goto sortend;
- }
-
- /* Allocate a buffer that can hold the longest line. */
- sortbuf1 = xmalloc(maxlen + 1);
- sortbuf2 = xmalloc(maxlen + 1);
-
- /* Sort the array of line numbers. Note: can't be interrupted! */
- qsort((void *)nrs, count, sizeof(sorti_T), sort_compare);
-
- if (sort_abort)
- goto sortend;
-
- /* Insert the lines in the sorted order below the last one. */
- lnum = eap->line2;
- for (i = 0; i < count; ++i) {
- s = ml_get(nrs[eap->forceit ? count - i - 1 : i].lnum);
- if (!unique || i == 0
- || (sort_ic ? STRICMP(s, sortbuf1) : STRCMP(s, sortbuf1)) != 0) {
- if (ml_append(lnum++, s, (colnr_T)0, FALSE) == FAIL)
- break;
- if (unique)
- STRCPY(sortbuf1, s);
- }
- fast_breakcheck();
- if (got_int)
- goto sortend;
- }
-
- /* delete the original lines if appending worked */
- if (i == count)
- for (i = 0; i < count; ++i)
- ml_delete(eap->line1, FALSE);
- else
- count = 0;
-
- /* Adjust marks for deleted (or added) lines and prepare for displaying. */
- deleted = (long)(count - (lnum - eap->line2));
- if (deleted > 0)
- mark_adjust(eap->line2 - deleted, eap->line2, (long)MAXLNUM, -deleted);
- else if (deleted < 0)
- mark_adjust(eap->line2, MAXLNUM, -deleted, 0L);
- changed_lines(eap->line1, 0, eap->line2 + 1, -deleted);
-
- curwin->w_cursor.lnum = eap->line1;
- beginline(BL_WHITE | BL_FIX);
-
-sortend:
- free(nrs);
- free(sortbuf1);
- free(sortbuf2);
- vim_regfree(regmatch.regprog);
- if (got_int)
- EMSG(_(e_interr));
-}
-
-/*
- * ":retab".
- */
-void ex_retab(exarg_T *eap)
-{
- linenr_T lnum;
- int got_tab = FALSE;
- long num_spaces = 0;
- long num_tabs;
- long len;
- long col;
- long vcol;
- long start_col = 0; /* For start of white-space string */
- long start_vcol = 0; /* For start of white-space string */
- int temp;
- long old_len;
- char_u *ptr;
- char_u *new_line = (char_u *)1; /* init to non-NULL */
- int did_undo; /* called u_save for current line */
- int new_ts;
- int save_list;
- linenr_T first_line = 0; /* first changed line */
- linenr_T last_line = 0; /* last changed line */
-
- save_list = curwin->w_p_list;
- curwin->w_p_list = 0; /* don't want list mode here */
-
- new_ts = getdigits(&(eap->arg));
- if (new_ts < 0) {
- EMSG(_(e_positive));
- return;
- }
- if (new_ts == 0)
- new_ts = curbuf->b_p_ts;
- for (lnum = eap->line1; !got_int && lnum <= eap->line2; ++lnum) {
- ptr = ml_get(lnum);
- col = 0;
- vcol = 0;
- did_undo = FALSE;
- for (;; ) {
- if (vim_iswhite(ptr[col])) {
- if (!got_tab && num_spaces == 0) {
- /* First consecutive white-space */
- start_vcol = vcol;
- start_col = col;
- }
- if (ptr[col] == ' ')
- num_spaces++;
- else
- got_tab = TRUE;
- } else {
- if (got_tab || (eap->forceit && num_spaces > 1)) {
- /* Retabulate this string of white-space */
-
- /* len is virtual length of white string */
- len = num_spaces = vcol - start_vcol;
- num_tabs = 0;
- if (!curbuf->b_p_et) {
- temp = new_ts - (start_vcol % new_ts);
- if (num_spaces >= temp) {
- num_spaces -= temp;
- num_tabs++;
- }
- num_tabs += num_spaces / new_ts;
- num_spaces -= (num_spaces / new_ts) * new_ts;
- }
- if (curbuf->b_p_et || got_tab ||
- (num_spaces + num_tabs < len)) {
- if (did_undo == FALSE) {
- did_undo = TRUE;
- if (u_save((linenr_T)(lnum - 1),
- (linenr_T)(lnum + 1)) == FAIL) {
- new_line = NULL; /* flag out-of-memory */
- break;
- }
- }
-
- /* len is actual number of white characters used */
- len = num_spaces + num_tabs;
- old_len = (long)STRLEN(ptr);
- new_line = xmalloc(old_len - col + start_col + len + 1);
-
- if (start_col > 0)
- memmove(new_line, ptr, (size_t)start_col);
- memmove(new_line + start_col + len,
- ptr + col, (size_t)(old_len - col + 1));
- ptr = new_line + start_col;
- for (col = 0; col < len; col++)
- ptr[col] = (col < num_tabs) ? '\t' : ' ';
- ml_replace(lnum, new_line, FALSE);
- if (first_line == 0)
- first_line = lnum;
- last_line = lnum;
- ptr = new_line;
- col = start_col + len;
- }
- }
- got_tab = FALSE;
- num_spaces = 0;
- }
- if (ptr[col] == NUL)
- break;
- vcol += chartabsize(ptr + col, (colnr_T)vcol);
- if (has_mbyte)
- col += (*mb_ptr2len)(ptr + col);
- else
- ++col;
- }
- if (new_line == NULL) /* out of memory */
- break;
- line_breakcheck();
- }
- if (got_int)
- EMSG(_(e_interr));
-
- if (curbuf->b_p_ts != new_ts)
- redraw_curbuf_later(NOT_VALID);
- if (first_line != 0)
- changed_lines(first_line, 0, last_line + 1, 0L);
-
- curwin->w_p_list = save_list; /* restore 'list' */
-
- curbuf->b_p_ts = new_ts;
- coladvance(curwin->w_curswant);
-
- u_clearline();
-}
-
-/*
- * :move command - move lines line1-line2 to line dest
- *
- * return FAIL for failure, OK otherwise
- */
-int do_move(linenr_T line1, linenr_T line2, linenr_T dest)
-{
- char_u *str;
- linenr_T l;
- linenr_T extra; /* Num lines added before line1 */
- linenr_T num_lines; /* Num lines moved */
- linenr_T last_line; /* Last line in file after adding new text */
-
- if (dest >= line1 && dest < line2) {
- EMSG(_("E134: Move lines into themselves"));
- return FAIL;
- }
-
- num_lines = line2 - line1 + 1;
-
- /*
- * First we copy the old text to its new location -- webb
- * Also copy the flag that ":global" command uses.
- */
- if (u_save(dest, dest + 1) == FAIL)
- return FAIL;
- for (extra = 0, l = line1; l <= line2; l++) {
- str = vim_strsave(ml_get(l + extra));
- if (str != NULL) {
- ml_append(dest + l - line1, str, (colnr_T)0, FALSE);
- free(str);
- if (dest < line1)
- extra++;
- }
- }
-
- /*
- * Now we must be careful adjusting our marks so that we don't overlap our
- * mark_adjust() calls.
- *
- * We adjust the marks within the old text so that they refer to the
- * last lines of the file (temporarily), because we know no other marks
- * will be set there since these line numbers did not exist until we added
- * our new lines.
- *
- * Then we adjust the marks on lines between the old and new text positions
- * (either forwards or backwards).
- *
- * And Finally we adjust the marks we put at the end of the file back to
- * their final destination at the new text position -- webb
- */
- last_line = curbuf->b_ml.ml_line_count;
- mark_adjust(line1, line2, last_line - line2, 0L);
- changed_lines(last_line - num_lines + 1, 0, last_line + 1, num_lines);
- if (dest >= line2) {
- mark_adjust(line2 + 1, dest, -num_lines, 0L);
- curbuf->b_op_start.lnum = dest - num_lines + 1;
- curbuf->b_op_end.lnum = dest;
- } else {
- mark_adjust(dest + 1, line1 - 1, num_lines, 0L);
- curbuf->b_op_start.lnum = dest + 1;
- curbuf->b_op_end.lnum = dest + num_lines;
- }
- curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
- mark_adjust(last_line - num_lines + 1, last_line,
- -(last_line - dest - extra), 0L);
- changed_lines(last_line - num_lines + 1, 0, last_line + 1, -extra);
-
- /*
- * Now we delete the original text -- webb
- */
- if (u_save(line1 + extra - 1, line2 + extra + 1) == FAIL)
- return FAIL;
-
- for (l = line1; l <= line2; l++)
- ml_delete(line1 + extra, TRUE);
-
- if (!global_busy && num_lines > p_report) {
- if (num_lines == 1)
- MSG(_("1 line moved"));
- else
- smsg((char_u *)_("%" PRId64 " lines moved"), (int64_t)num_lines);
- }
-
- /*
- * Leave the cursor on the last of the moved lines.
- */
- if (dest >= line1)
- curwin->w_cursor.lnum = dest;
- else
- curwin->w_cursor.lnum = dest + (line2 - line1) + 1;
-
- if (line1 < dest) {
- dest += num_lines + 1;
- last_line = curbuf->b_ml.ml_line_count;
- if (dest > last_line + 1)
- dest = last_line + 1;
- changed_lines(line1, 0, dest, 0L);
- } else
- changed_lines(dest + 1, 0, line1 + num_lines, 0L);
-
- return OK;
-}
-
-/*
- * ":copy"
- */
-void ex_copy(linenr_T line1, linenr_T line2, linenr_T n)
-{
- linenr_T count;
- char_u *p;
-
- count = line2 - line1 + 1;
- curbuf->b_op_start.lnum = n + 1;
- curbuf->b_op_end.lnum = n + count;
- curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
-
- /*
- * there are three situations:
- * 1. destination is above line1
- * 2. destination is between line1 and line2
- * 3. destination is below line2
- *
- * n = destination (when starting)
- * curwin->w_cursor.lnum = destination (while copying)
- * line1 = start of source (while copying)
- * line2 = end of source (while copying)
- */
- if (u_save(n, n + 1) == FAIL)
- return;
-
- curwin->w_cursor.lnum = n;
- while (line1 <= line2) {
- /* need to use vim_strsave() because the line will be unlocked within
- * ml_append() */
- p = vim_strsave(ml_get(line1));
- if (p != NULL) {
- ml_append(curwin->w_cursor.lnum, p, (colnr_T)0, FALSE);
- free(p);
- }
- /* situation 2: skip already copied lines */
- if (line1 == n)
- line1 = curwin->w_cursor.lnum;
- ++line1;
- if (curwin->w_cursor.lnum < line1)
- ++line1;
- if (curwin->w_cursor.lnum < line2)
- ++line2;
- ++curwin->w_cursor.lnum;
- }
-
- appended_lines_mark(n, count);
-
- msgmore((long)count);
-}
-
-static char_u *prevcmd = NULL; /* the previous command */
-
-#if defined(EXITFREE) || defined(PROTO)
-void free_prev_shellcmd(void)
-{
- free(prevcmd);
-}
-
-#endif
-
-/*
- * Handle the ":!cmd" command. Also for ":r !cmd" and ":w !cmd"
- * Bangs in the argument are replaced with the previously entered command.
- * Remember the argument.
- */
-void do_bang(int addr_count, exarg_T *eap, int forceit, int do_in, int do_out)
-{
- char_u *arg = eap->arg; /* command */
- linenr_T line1 = eap->line1; /* start of range */
- linenr_T line2 = eap->line2; /* end of range */
- char_u *newcmd = NULL; /* the new command */
- int free_newcmd = FALSE; /* need to free() newcmd */
- int ins_prevcmd;
- char_u *t;
- char_u *p;
- char_u *trailarg;
- int len;
- int scroll_save = msg_scroll;
-
- /*
- * Disallow shell commands for "rvim".
- * Disallow shell commands from .exrc and .vimrc in current directory for
- * security reasons.
- */
- if (check_restricted() || check_secure())
- return;
-
- if (addr_count == 0) { /* :! */
- msg_scroll = FALSE; /* don't scroll here */
- autowrite_all();
- msg_scroll = scroll_save;
- }
-
- /*
- * Try to find an embedded bang, like in :!<cmd> ! [args]
- * (:!! is indicated by the 'forceit' variable)
- */
- ins_prevcmd = forceit;
- trailarg = arg;
- do {
- len = (int)STRLEN(trailarg) + 1;
- if (newcmd != NULL)
- len += (int)STRLEN(newcmd);
- if (ins_prevcmd) {
- if (prevcmd == NULL) {
- EMSG(_(e_noprev));
- free(newcmd);
- return;
- }
- len += (int)STRLEN(prevcmd);
- }
- t = xmalloc(len);
- *t = NUL;
- if (newcmd != NULL)
- STRCAT(t, newcmd);
- if (ins_prevcmd)
- STRCAT(t, prevcmd);
- p = t + STRLEN(t);
- STRCAT(t, trailarg);
- free(newcmd);
- newcmd = t;
-
- /*
- * Scan the rest of the argument for '!', which is replaced by the
- * previous command. "\!" is replaced by "!" (this is vi compatible).
- */
- trailarg = NULL;
- while (*p) {
- if (*p == '!') {
- if (p > newcmd && p[-1] == '\\')
- STRMOVE(p - 1, p);
- else {
- trailarg = p;
- *trailarg++ = NUL;
- ins_prevcmd = TRUE;
- break;
- }
- }
- ++p;
- }
- } while (trailarg != NULL);
-
- free(prevcmd);
- prevcmd = newcmd;
-
- if (bangredo) { /* put cmd in redo buffer for ! command */
- /* If % or # appears in the command, it must have been escaped.
- * Reescape them, so that redoing them does not substitute them by the
- * buffername. */
- char_u *cmd = vim_strsave_escaped(prevcmd, (char_u *)"%#");
-
- AppendToRedobuffLit(cmd, -1);
- free(cmd);
- AppendToRedobuff((char_u *)"\n");
- bangredo = FALSE;
- }
- /*
- * Add quotes around the command, for shells that need them.
- */
- if (*p_shq != NUL) {
- newcmd = xmalloc(STRLEN(prevcmd) + 2 * STRLEN(p_shq) + 1);
- STRCPY(newcmd, p_shq);
- STRCAT(newcmd, prevcmd);
- STRCAT(newcmd, p_shq);
- free_newcmd = TRUE;
- }
- if (addr_count == 0) { /* :! */
- /* echo the command */
- msg_start();
- msg_putchar(':');
- msg_putchar('!');
- msg_outtrans(newcmd);
- msg_clr_eos();
- windgoto(msg_row, msg_col);
-
- do_shell(newcmd, 0);
- } else { /* :range! */
- /* Careful: This may recursively call do_bang() again! (because of
- * autocommands) */
- do_filter(line1, line2, eap, newcmd, do_in, do_out);
- apply_autocmds(EVENT_SHELLFILTERPOST, NULL, NULL, FALSE, curbuf);
- }
- if (free_newcmd)
- free(newcmd);
-}
-
-/*
- * do_filter: filter lines through a command given by the user
- *
- * We mostly use temp files and the call_shell() routine here. This would
- * normally be done using pipes on a UNIX machine, but this is more portable
- * to non-unix machines. The call_shell() routine needs to be able
- * to deal with redirection somehow, and should handle things like looking
- * at the PATH env. variable, and adding reasonable extensions to the
- * command name given by the user. All reasonable versions of call_shell()
- * do this.
- * Alternatively, if on Unix and redirecting input or output, but not both,
- * and the 'shelltemp' option isn't set, use pipes.
- * We use input redirection if do_in is TRUE.
- * We use output redirection if do_out is TRUE.
- */
-static void
-do_filter (
- linenr_T line1,
- linenr_T line2,
- exarg_T *eap, /* for forced 'ff' and 'fenc' */
- char_u *cmd,
- int do_in,
- int do_out
-)
-{
- char_u *itmp = NULL;
- char_u *otmp = NULL;
- linenr_T linecount;
- linenr_T read_linecount;
- pos_T cursor_save;
- char_u *cmd_buf;
- buf_T *old_curbuf = curbuf;
- int shell_flags = 0;
-
- if (*cmd == NUL) /* no filter command */
- return;
-
-
- cursor_save = curwin->w_cursor;
- linecount = line2 - line1 + 1;
- curwin->w_cursor.lnum = line1;
- curwin->w_cursor.col = 0;
- changed_line_abv_curs();
- invalidate_botline();
-
- /*
- * When using temp files:
- * 1. * Form temp file names
- * 2. * Write the lines to a temp file
- * 3. Run the filter command on the temp file
- * 4. * Read the output of the command into the buffer
- * 5. * Delete the original lines to be filtered
- * 6. * Remove the temp files
- *
- * When writing the input with a pipe or when catching the output with a
- * pipe only need to do 3.
- */
-
- if (do_out)
- shell_flags |= kShellOptDoOut;
-
- if (!do_in && do_out && !p_stmp) {
- // Use a pipe to fetch stdout of the command, do not use a temp file.
- shell_flags |= kShellOptRead;
- curwin->w_cursor.lnum = line2;
- } else if (do_in && !do_out && !p_stmp) {
- // Use a pipe to write stdin of the command, do not use a temp file.
- shell_flags |= kShellOptWrite;
- curbuf->b_op_start.lnum = line1;
- curbuf->b_op_end.lnum = line2;
- } else if (do_in && do_out && !p_stmp) {
- // Use a pipe to write stdin and fetch stdout of the command, do not
- // use a temp file.
- shell_flags |= kShellOptRead | kShellOptWrite;
- curbuf->b_op_start.lnum = line1;
- curbuf->b_op_end.lnum = line2;
- curwin->w_cursor.lnum = line2;
- } else if ((do_in && (itmp = vim_tempname('i')) == NULL)
- || (do_out && (otmp = vim_tempname('o')) == NULL)) {
- EMSG(_(e_notmp));
- goto filterend;
- }
-
- /*
- * The writing and reading of temp files will not be shown.
- * Vi also doesn't do this and the messages are not very informative.
- */
- ++no_wait_return; /* don't call wait_return() while busy */
- if (itmp != NULL && buf_write(curbuf, itmp, NULL, line1, line2, eap,
- FALSE, FALSE, FALSE, TRUE) == FAIL) {
- msg_putchar('\n'); /* keep message from buf_write() */
- --no_wait_return;
- if (!aborting())
- (void)EMSG2(_(e_notcreate), itmp); /* will call wait_return */
- goto filterend;
- }
- if (curbuf != old_curbuf)
- goto filterend;
-
- if (!do_out)
- msg_putchar('\n');
-
- /* Create the shell command in allocated memory. */
- cmd_buf = make_filter_cmd(cmd, itmp, otmp);
-
- windgoto((int)Rows - 1, 0);
- cursor_on();
-
- /*
- * When not redirecting the output the command can write anything to the
- * screen. If 'shellredir' is equal to ">", screen may be messed up by
- * stderr output of external command. Clear the screen later.
- * If do_in is FALSE, this could be something like ":r !cat", which may
- * also mess up the screen, clear it later.
- */
- if (!do_out || STRCMP(p_srr, ">") == 0 || !do_in)
- redraw_later_clear();
-
- if (do_out) {
- if (u_save((linenr_T)(line2), (linenr_T)(line2 + 1)) == FAIL) {
- free(cmd_buf);
- goto error;
- }
- redraw_curbuf_later(VALID);
- }
- read_linecount = curbuf->b_ml.ml_line_count;
-
- /*
- * When call_shell() fails wait_return() is called to give the user a
- * chance to read the error messages. Otherwise errors are ignored, so you
- * can see the error messages from the command that appear on stdout; use
- * 'u' to fix the text
- * Switch to cooked mode when not redirecting stdin, avoids that something
- * like ":r !cat" hangs.
- * Pass on the kShellDoOut flag when the output is being redirected.
- */
- if (call_shell(
- cmd_buf,
- kShellOptFilter | kShellOptCooked | shell_flags,
- NULL
- )) {
- redraw_later_clear();
- wait_return(FALSE);
- }
- free(cmd_buf);
-
- did_check_timestamps = FALSE;
- need_check_timestamps = TRUE;
-
- /* When interrupting the shell command, it may still have produced some
- * useful output. Reset got_int here, so that readfile() won't cancel
- * reading. */
- ui_breakcheck();
- got_int = FALSE;
-
- if (do_out) {
- if (otmp != NULL) {
- if (readfile(otmp, NULL, line2, (linenr_T)0, (linenr_T)MAXLNUM,
- eap, READ_FILTER) == FAIL) {
- if (!aborting()) {
- msg_putchar('\n');
- EMSG2(_(e_notread), otmp);
- }
- goto error;
- }
- if (curbuf != old_curbuf)
- goto filterend;
- }
-
- read_linecount = curbuf->b_ml.ml_line_count - read_linecount;
-
- if (shell_flags & kShellOptRead) {
- curbuf->b_op_start.lnum = line2 + 1;
- curbuf->b_op_end.lnum = curwin->w_cursor.lnum;
- appended_lines_mark(line2, read_linecount);
- }
-
- if (do_in) {
- if (cmdmod.keepmarks || vim_strchr(p_cpo, CPO_REMMARK) == NULL) {
- if (read_linecount >= linecount)
- /* move all marks from old lines to new lines */
- mark_adjust(line1, line2, linecount, 0L);
- else {
- /* move marks from old lines to new lines, delete marks
- * that are in deleted lines */
- mark_adjust(line1, line1 + read_linecount - 1,
- linecount, 0L);
- mark_adjust(line1 + read_linecount, line2, MAXLNUM, 0L);
- }
- }
-
- /*
- * Put cursor on first filtered line for ":range!cmd".
- * Adjust '[ and '] (set by buf_write()).
- */
- curwin->w_cursor.lnum = line1;
- del_lines(linecount, TRUE);
- curbuf->b_op_start.lnum -= linecount; /* adjust '[ */
- curbuf->b_op_end.lnum -= linecount; /* adjust '] */
- write_lnum_adjust(-linecount); /* adjust last line
- for next write */
- foldUpdate(curwin, curbuf->b_op_start.lnum, curbuf->b_op_end.lnum);
- } else {
- /*
- * Put cursor on last new line for ":r !cmd".
- */
- linecount = curbuf->b_op_end.lnum - curbuf->b_op_start.lnum + 1;
- curwin->w_cursor.lnum = curbuf->b_op_end.lnum;
- }
-
- beginline(BL_WHITE | BL_FIX); /* cursor on first non-blank */
- --no_wait_return;
-
- if (linecount > p_report) {
- if (do_in) {
- vim_snprintf((char *)msg_buf, sizeof(msg_buf),
- _("%" PRId64 " lines filtered"), (int64_t)linecount);
- if (msg(msg_buf) && !msg_scroll)
- /* save message to display it after redraw */
- set_keep_msg(msg_buf, 0);
- } else
- msgmore((long)linecount);
- }
- } else {
-error:
- /* put cursor back in same position for ":w !cmd" */
- curwin->w_cursor = cursor_save;
- --no_wait_return;
- wait_return(FALSE);
- }
-
-filterend:
-
- if (curbuf != old_curbuf) {
- --no_wait_return;
- EMSG(_("E135: *Filter* Autocommands must not change current buffer"));
- }
- if (itmp != NULL)
- os_remove((char *)itmp);
- if (otmp != NULL)
- os_remove((char *)otmp);
- free(itmp);
- free(otmp);
-}
-
-/*
- * Call a shell to execute a command.
- * When "cmd" is NULL start an interactive shell.
- */
-void
-do_shell (
- char_u *cmd,
- int flags /* may be SHELL_DOOUT when output is redirected */
-)
-{
- buf_T *buf;
- int save_nwr;
-
- /*
- * Disallow shell commands for "rvim".
- * Disallow shell commands from .exrc and .vimrc in current directory for
- * security reasons.
- */
- if (check_restricted() || check_secure()) {
- msg_end();
- return;
- }
-
-
- /*
- * For autocommands we want to get the output on the current screen, to
- * avoid having to type return below.
- */
- msg_putchar('\r'); /* put cursor at start of line */
- if (!autocmd_busy) {
- stoptermcap();
- }
- msg_putchar('\n'); /* may shift screen one line up */
-
- /* warning message before calling the shell */
- if (p_warn
- && !autocmd_busy
- && msg_silent == 0)
- for (buf = firstbuf; buf; buf = buf->b_next)
- if (bufIsChanged(buf)) {
- MSG_PUTS(_("[No write since last change]\n"));
- break;
- }
-
- /* This windgoto is required for when the '\n' resulted in a "delete line
- * 1" command to the terminal. */
- if (!swapping_screen())
- windgoto(msg_row, msg_col);
- cursor_on();
- (void)call_shell(cmd, kShellOptCooked | flags, NULL);
- did_check_timestamps = FALSE;
- need_check_timestamps = TRUE;
-
- /*
- * put the message cursor at the end of the screen, avoids wait_return()
- * to overwrite the text that the external command showed
- */
- if (!swapping_screen()) {
- msg_row = Rows - 1;
- msg_col = 0;
- }
-
- if (autocmd_busy) {
- if (msg_silent == 0)
- redraw_later_clear();
- } else {
- /*
- * For ":sh" there is no need to call wait_return(), just redraw.
- * Also for the Win32 GUI (the output is in a console window).
- * Otherwise there is probably text on the screen that the user wants
- * to read before redrawing, so call wait_return().
- */
- if (cmd == NULL
- ) {
- if (msg_silent == 0)
- redraw_later_clear();
- need_wait_return = FALSE;
- } else {
- /*
- * If we switch screens when starttermcap() is called, we really
- * want to wait for "hit return to continue".
- */
- save_nwr = no_wait_return;
- if (swapping_screen())
- no_wait_return = FALSE;
- wait_return(msg_silent == 0);
- no_wait_return = save_nwr;
- }
-
- starttermcap(); /* start termcap if not done by wait_return() */
-
- /*
- * In an Amiga window redrawing is caused by asking the window size.
- * If we got an interrupt this will not work. The chance that the
- * window size is wrong is very small, but we need to redraw the
- * screen. Don't do this if ':' hit in wait_return(). THIS IS UGLY
- * but it saves an extra redraw.
- */
- }
-
- /* display any error messages now */
- display_errors();
-
- apply_autocmds(EVENT_SHELLCMDPOST, NULL, NULL, FALSE, curbuf);
-}
-
-/*
- * Create a shell command from a command string, input redirection file and
- * output redirection file.
- * Returns an allocated string with the shell command.
- */
-char_u *
-make_filter_cmd (
- char_u *cmd, /* command */
- char_u *itmp, /* NULL or name of input file */
- char_u *otmp /* NULL or name of output file */
-)
-{
- size_t len = STRLEN(cmd) + 3; /* "()" + NUL */
- if (itmp != NULL)
- len += STRLEN(itmp) + 9; /* " { < " + " } " */
- if (otmp != NULL)
- len += STRLEN(otmp) + STRLEN(p_srr) + 2; /* " " */
- char_u *buf = xmalloc(len);
-
-#if defined(UNIX)
- /*
- * Put braces around the command (for concatenated commands) when
- * redirecting input and/or output.
- */
- if (itmp != NULL || otmp != NULL)
- vim_snprintf((char *)buf, len, "(%s)", (char *)cmd);
- else
- STRCPY(buf, cmd);
- if (itmp != NULL) {
- STRCAT(buf, " < ");
- STRCAT(buf, itmp);
- }
-#else
- /*
- * for shells that don't understand braces around commands, at least allow
- * the use of commands in a pipe.
- */
- STRCPY(buf, cmd);
- if (itmp != NULL) {
- char_u *p;
-
- /*
- * If there is a pipe, we have to put the '<' in front of it.
- * Don't do this when 'shellquote' is not empty, otherwise the
- * redirection would be inside the quotes.
- */
- if (*p_shq == NUL) {
- p = vim_strchr(buf, '|');
- if (p != NULL)
- *p = NUL;
- }
- STRCAT(buf, " < ");
- STRCAT(buf, itmp);
- if (*p_shq == NUL) {
- p = vim_strchr(cmd, '|');
- if (p != NULL) {
- STRCAT(buf, " "); /* insert a space before the '|' for DOS */
- STRCAT(buf, p);
- }
- }
- }
-#endif
- if (otmp != NULL)
- append_redir(buf, (int)len, p_srr, otmp);
-
- return buf;
-}
-
-/*
- * Append output redirection for file "fname" to the end of string buffer
- * "buf[buflen]"
- * Works with the 'shellredir' and 'shellpipe' options.
- * The caller should make sure that there is enough room:
- * STRLEN(opt) + STRLEN(fname) + 3
- */
-void append_redir(char_u *buf, int buflen, char_u *opt, char_u *fname)
-{
- char_u *p;
- char_u *end;
-
- end = buf + STRLEN(buf);
- /* find "%s" */
- for (p = opt; (p = vim_strchr(p, '%')) != NULL; ++p) {
- if (p[1] == 's') /* found %s */
- break;
- if (p[1] == '%') /* skip %% */
- ++p;
- }
- if (p != NULL) {
- *end = ' '; /* not really needed? Not with sh, ksh or bash */
- vim_snprintf((char *)end + 1, (size_t)(buflen - (end + 1 - buf)),
- (char *)opt, (char *)fname);
- } else
- vim_snprintf((char *)end, (size_t)(buflen - (end - buf)),
- " %s %s",
- (char *)opt, (char *)fname);
-}
-
-
-static int no_viminfo(void);
-static int viminfo_errcnt;
-
-static int no_viminfo(void)
-{
- /* "vim -i NONE" does not read or write a viminfo file */
- return use_viminfo != NULL && STRCMP(use_viminfo, "NONE") == 0;
-}
-
-/*
- * Report an error for reading a viminfo file.
- * Count the number of errors. When there are more than 10, return TRUE.
- */
-int viminfo_error(char *errnum, char *message, char_u *line)
-{
- vim_snprintf((char *)IObuff, IOSIZE, _("%sviminfo: %s in line: "),
- errnum, message);
- STRNCAT(IObuff, line, IOSIZE - STRLEN(IObuff) - 1);
- if (IObuff[STRLEN(IObuff) - 1] == '\n')
- IObuff[STRLEN(IObuff) - 1] = NUL;
- emsg(IObuff);
- if (++viminfo_errcnt >= 10) {
- EMSG(_("E136: viminfo: Too many errors, skipping rest of file"));
- return TRUE;
- }
- return FALSE;
-}
-
-/*
- * read_viminfo() -- Read the viminfo file. Registers etc. which are already
- * set are not over-written unless "flags" includes VIF_FORCEIT. -- webb
- */
-int
-read_viminfo (
- char_u *file, /* file name or NULL to use default name */
- int flags /* VIF_WANT_INFO et al. */
-)
-{
- FILE *fp;
- char_u *fname;
-
- if (no_viminfo())
- return FAIL;
-
- fname = viminfo_filename(file); /* get file name in allocated buffer */
- if (fname == NULL)
- return FAIL;
- fp = mch_fopen((char *)fname, READBIN);
-
- if (p_verbose > 0) {
- verbose_enter();
- smsg((char_u *)_("Reading viminfo file \"%s\"%s%s%s"),
- fname,
- (flags & VIF_WANT_INFO) ? _(" info") : "",
- (flags & VIF_WANT_MARKS) ? _(" marks") : "",
- (flags & VIF_GET_OLDFILES) ? _(" oldfiles") : "",
- fp == NULL ? _(" FAILED") : "");
- verbose_leave();
- }
-
- free(fname);
- if (fp == NULL)
- return FAIL;
-
- viminfo_errcnt = 0;
- do_viminfo(fp, NULL, flags);
-
- fclose(fp);
- return OK;
-}
-
-/*
- * Write the viminfo file. The old one is read in first so that effectively a
- * merge of current info and old info is done. This allows multiple vims to
- * run simultaneously, without losing any marks etc.
- * If "forceit" is TRUE, then the old file is not read in, and only internal
- * info is written to the file.
- */
-void write_viminfo(char_u *file, int forceit)
-{
- char_u *fname;
- FILE *fp_in = NULL; /* input viminfo file, if any */
- FILE *fp_out = NULL; /* output viminfo file */
- char_u *tempname = NULL; /* name of temp viminfo file */
- char_u *wp;
-#if defined(UNIX)
- mode_t umask_save;
-#endif
-
- if (no_viminfo())
- return;
-
- fname = viminfo_filename(file); /* may set to default if NULL */
- if (fname == NULL)
- return;
-
- fp_in = mch_fopen((char *)fname, READBIN);
- if (fp_in == NULL) {
- /* if it does exist, but we can't read it, don't try writing */
- if (os_file_exists(fname))
- goto end;
-#if defined(UNIX)
- /*
- * For Unix we create the .viminfo non-accessible for others,
- * because it may contain text from non-accessible documents.
- */
- umask_save = umask(077);
-#endif
- fp_out = mch_fopen((char *)fname, WRITEBIN);
-#if defined(UNIX)
- (void)umask(umask_save);
-#endif
- } else {
- /*
- * There is an existing viminfo file. Create a temporary file to
- * write the new viminfo into, in the same directory as the
- * existing viminfo file, which will be renamed later.
- */
-#ifdef UNIX
- /*
- * For Unix we check the owner of the file. It's not very nice to
- * overwrite a user's viminfo file after a "su root", with a
- * viminfo file that the user can't read.
- */
-
- FileInfo old_info; // FileInfo of existing viminfo file
- if (os_get_file_info((char *)fname, &old_info)
- && getuid() != ROOT_UID
- && !(old_info.stat.st_uid == getuid()
- ? (old_info.stat.st_mode & 0200)
- : (old_info.stat.st_gid == getgid()
- ? (old_info.stat.st_mode & 0020)
- : (old_info.stat.st_mode & 0002)))) {
- int tt = msg_didany;
-
- /* avoid a wait_return for this message, it's annoying */
- EMSG2(_("E137: Viminfo file is not writable: %s"), fname);
- msg_didany = tt;
- fclose(fp_in);
- goto end;
- }
-#endif
-
- // Make tempname
- tempname = modname(fname, (char_u *)".tmp", FALSE);
- if (tempname != NULL) {
- /*
- * Check if tempfile already exists. Never overwrite an
- * existing file!
- */
- if (os_file_exists(tempname)) {
- /*
- * Try another name. Change one character, just before
- * the extension.
- */
- wp = tempname + STRLEN(tempname) - 5;
- if (wp < path_tail(tempname)) /* empty file name? */
- wp = path_tail(tempname);
- for (*wp = 'z'; os_file_exists(tempname); --*wp) {
- /*
- * They all exist? Must be something wrong! Don't
- * write the viminfo file then.
- */
- if (*wp == 'a') {
- free(tempname);
- tempname = NULL;
- break;
- }
- }
- }
- }
-
- if (tempname != NULL) {
- int fd;
-
- /* Use mch_open() to be able to use O_NOFOLLOW and set file
- * protection:
- * Unix: same as original file, but strip s-bit. Reset umask to
- * avoid it getting in the way.
- * Others: r&w for user only. */
-# ifdef UNIX
- umask_save = umask(0);
- fd = mch_open((char *)tempname,
- O_CREAT|O_EXCL|O_WRONLY|O_NOFOLLOW,
- (int)((old_info.stat.st_mode & 0777) | 0600));
- (void)umask(umask_save);
-# else
- fd = mch_open((char *)tempname,
- O_CREAT|O_EXCL|O_WRONLY|O_NOFOLLOW, 0600);
-# endif
- if (fd < 0)
- fp_out = NULL;
- else
- fp_out = fdopen(fd, WRITEBIN);
-
- /*
- * If we can't create in the same directory, try creating a
- * "normal" temp file.
- */
- if (fp_out == NULL) {
- free(tempname);
- if ((tempname = vim_tempname('o')) != NULL)
- fp_out = mch_fopen((char *)tempname, WRITEBIN);
- }
-
-#if defined(UNIX) && defined(HAVE_FCHOWN)
- /*
- * Make sure the owner can read/write it. This only works for
- * root.
- */
- if (fp_out != NULL) {
- fchown(fileno(fp_out), old_info.stat.st_uid, old_info.stat.st_gid);
- }
-#endif
- }
- }
-
- /*
- * Check if the new viminfo file can be written to.
- */
- if (fp_out == NULL) {
- EMSG2(_("E138: Can't write viminfo file %s!"),
- (fp_in == NULL || tempname == NULL) ? fname : tempname);
- if (fp_in != NULL)
- fclose(fp_in);
- goto end;
- }
-
- if (p_verbose > 0) {
- verbose_enter();
- smsg((char_u *)_("Writing viminfo file \"%s\""), fname);
- verbose_leave();
- }
-
- viminfo_errcnt = 0;
- do_viminfo(fp_in, fp_out, forceit ? 0 : (VIF_WANT_INFO | VIF_WANT_MARKS));
-
- fclose(fp_out); /* errors are ignored !? */
- if (fp_in != NULL) {
- fclose(fp_in);
-
- /*
- * In case of an error keep the original viminfo file.
- * Otherwise rename the newly written file.
- */
- if (viminfo_errcnt || vim_rename(tempname, fname) == -1) {
- os_remove((char *)tempname);
- }
- }
-
-end:
- free(fname);
- free(tempname);
-}
-
-/*
- * Get the viminfo file name to use.
- * If "file" is given and not empty, use it (has already been expanded by
- * cmdline functions).
- * Otherwise use "-i file_name", value from 'viminfo' or the default, and
- * expand environment variables.
- * Returns an allocated string. NULL when out of memory.
- */
-static char_u *viminfo_filename(char_u *file)
-{
- if (file == NULL || *file == NUL) {
- if (use_viminfo != NULL)
- file = use_viminfo;
- else if ((file = find_viminfo_parameter('n')) == NULL || *file == NUL) {
-#ifdef VIMINFO_FILE2
- /* don't use $HOME when not defined (turned into "c:/"!). */
- if (os_getenv((char_u *)"HOME") == NULL) {
- /* don't use $VIM when not available. */
- expand_env((char_u *)"$VIM", NameBuff, MAXPATHL);
- if (STRCMP("$VIM", NameBuff) != 0) /* $VIM was expanded */
- file = (char_u *)VIMINFO_FILE2;
- else
- file = (char_u *)VIMINFO_FILE;
- } else
-#endif
- file = (char_u *)VIMINFO_FILE;
- }
- expand_env(file, NameBuff, MAXPATHL);
- file = NameBuff;
- }
- return vim_strsave(file);
-}
-
-/*
- * do_viminfo() -- Should only be called from read_viminfo() & write_viminfo().
- */
-static void do_viminfo(FILE *fp_in, FILE *fp_out, int flags)
-{
- int count = 0;
- int eof = FALSE;
- vir_T vir;
- int merge = FALSE;
-
- vir.vir_line = xmalloc(LSIZE);
- vir.vir_fd = fp_in;
- vir.vir_conv.vc_type = CONV_NONE;
-
- if (fp_in != NULL) {
- if (flags & VIF_WANT_INFO) {
- eof = read_viminfo_up_to_marks(&vir,
- flags & VIF_FORCEIT, fp_out != NULL);
- merge = TRUE;
- } else if (flags != 0)
- /* Skip info, find start of marks */
- while (!(eof = viminfo_readline(&vir))
- && vir.vir_line[0] != '>')
- ;
- }
- if (fp_out != NULL) {
- /* Write the info: */
- fprintf(fp_out, _("# This viminfo file was generated by Vim %s.\n"),
- VIM_VERSION_MEDIUM);
- fputs(_("# You may edit it if you're careful!\n\n"), fp_out);
- fputs(_("# Value of 'encoding' when this file was written\n"), fp_out);
- fprintf(fp_out, "*encoding=%s\n\n", p_enc);
- write_viminfo_search_pattern(fp_out);
- write_viminfo_sub_string(fp_out);
- write_viminfo_history(fp_out, merge);
- write_viminfo_registers(fp_out);
- write_viminfo_varlist(fp_out);
- write_viminfo_filemarks(fp_out);
- write_viminfo_bufferlist(fp_out);
- count = write_viminfo_marks(fp_out);
- }
- if (fp_in != NULL
- && (flags & (VIF_WANT_MARKS | VIF_GET_OLDFILES | VIF_FORCEIT)))
- copy_viminfo_marks(&vir, fp_out, count, eof, flags);
-
- free(vir.vir_line);
- if (vir.vir_conv.vc_type != CONV_NONE)
- convert_setup(&vir.vir_conv, NULL, NULL);
-}
-
-/*
- * read_viminfo_up_to_marks() -- Only called from do_viminfo(). Reads in the
- * first part of the viminfo file which contains everything but the marks that
- * are local to a file. Returns TRUE when end-of-file is reached. -- webb
- */
-static int read_viminfo_up_to_marks(vir_T *virp, int forceit, int writing)
-{
- int eof;
- buf_T *buf;
-
- prepare_viminfo_history(forceit ? 9999 : 0, writing);
- eof = viminfo_readline(virp);
- while (!eof && virp->vir_line[0] != '>') {
- switch (virp->vir_line[0]) {
- /* Characters reserved for future expansion, ignored now */
- case '+': /* "+40 /path/dir file", for running vim without args */
- case '|': /* to be defined */
- case '^': /* to be defined */
- case '<': /* long line - ignored */
- /* A comment or empty line. */
- case NUL:
- case '\r':
- case '\n':
- case '#':
- eof = viminfo_readline(virp);
- break;
- case '*': /* "*encoding=value" */
- eof = viminfo_encoding(virp);
- break;
- case '!': /* global variable */
- eof = read_viminfo_varlist(virp, writing);
- break;
- case '%': /* entry for buffer list */
- eof = read_viminfo_bufferlist(virp, writing);
- break;
- case '"':
- eof = read_viminfo_register(virp, forceit);
- break;
- case '/': /* Search string */
- case '&': /* Substitute search string */
- case '~': /* Last search string, followed by '/' or '&' */
- eof = read_viminfo_search_pattern(virp, forceit);
- break;
- case '$':
- eof = read_viminfo_sub_string(virp, forceit);
- break;
- case ':':
- case '?':
- case '=':
- case '@':
- eof = read_viminfo_history(virp, writing);
- break;
- case '-':
- case '\'':
- eof = read_viminfo_filemark(virp, forceit);
- break;
- default:
- if (viminfo_error("E575: ", _("Illegal starting char"),
- virp->vir_line))
- eof = TRUE;
- else
- eof = viminfo_readline(virp);
- break;
- }
- }
-
- /* Finish reading history items. */
- if (!writing)
- finish_viminfo_history();
-
- /* Change file names to buffer numbers for fmarks. */
- for (buf = firstbuf; buf != NULL; buf = buf->b_next)
- fmarks_check_names(buf);
-
- return eof;
-}
-
-/*
- * Compare the 'encoding' value in the viminfo file with the current value of
- * 'encoding'. If different and the 'c' flag is in 'viminfo', setup for
- * conversion of text with iconv() in viminfo_readstring().
- */
-static int viminfo_encoding(vir_T *virp)
-{
- char_u *p;
- int i;
-
- if (get_viminfo_parameter('c') != 0) {
- p = vim_strchr(virp->vir_line, '=');
- if (p != NULL) {
- /* remove trailing newline */
- ++p;
- for (i = 0; vim_isprintc(p[i]); ++i)
- ;
- p[i] = NUL;
-
- convert_setup(&virp->vir_conv, p, p_enc);
- }
- }
- return viminfo_readline(virp);
-}
-
-/*
- * Read a line from the viminfo file.
- * Returns TRUE for end-of-file;
- */
-int viminfo_readline(vir_T *virp)
-{
- return vim_fgets(virp->vir_line, LSIZE, virp->vir_fd);
-}
-
-/*
- * check string read from viminfo file
- * remove '\n' at the end of the line
- * - replace CTRL-V CTRL-V with CTRL-V
- * - replace CTRL-V 'n' with '\n'
- *
- * Check for a long line as written by viminfo_writestring().
- *
- * Return the string in allocated memory (NULL when out of memory).
- */
-char_u *
-viminfo_readstring (
- vir_T *virp,
- int off, /* offset for virp->vir_line */
- int convert /* convert the string */
-)
-{
- char_u *retval;
- char_u *s, *d;
-
- if (virp->vir_line[off] == Ctrl_V && vim_isdigit(virp->vir_line[off + 1])) {
- ssize_t len = atol((char *)virp->vir_line + off + 1);
- retval = xmalloc(len);
- // TODO(philix): change type of vim_fgets() size argument to size_t
- (void)vim_fgets(retval, (int)len, virp->vir_fd);
- s = retval + 1; /* Skip the leading '<' */
- } else {
- retval = vim_strsave(virp->vir_line + off);
- if (retval == NULL)
- return NULL;
- s = retval;
- }
-
- /* Change CTRL-V CTRL-V to CTRL-V and CTRL-V n to \n in-place. */
- d = retval;
- while (*s != NUL && *s != '\n') {
- if (s[0] == Ctrl_V && s[1] != NUL) {
- if (s[1] == 'n')
- *d++ = '\n';
- else
- *d++ = Ctrl_V;
- s += 2;
- } else
- *d++ = *s++;
- }
- *d = NUL;
-
- if (convert && virp->vir_conv.vc_type != CONV_NONE && *retval != NUL) {
- d = string_convert(&virp->vir_conv, retval, NULL);
- if (d != NULL) {
- free(retval);
- retval = d;
- }
- }
-
- return retval;
-}
-
-/*
- * write string to viminfo file
- * - replace CTRL-V with CTRL-V CTRL-V
- * - replace '\n' with CTRL-V 'n'
- * - add a '\n' at the end
- *
- * For a long line:
- * - write " CTRL-V <length> \n " in first line
- * - write " < <string> \n " in second line
- */
-void viminfo_writestring(FILE *fd, char_u *p)
-{
- int c;
- char_u *s;
- int len = 0;
-
- for (s = p; *s != NUL; ++s) {
- if (*s == Ctrl_V || *s == '\n')
- ++len;
- ++len;
- }
-
- /* If the string will be too long, write its length and put it in the next
- * line. Take into account that some room is needed for what comes before
- * the string (e.g., variable name). Add something to the length for the
- * '<', NL and trailing NUL. */
- if (len > LSIZE / 2)
- fprintf(fd, IF_EB("\026%d\n<", CTRL_V_STR "%d\n<"), len + 3);
-
- while ((c = *p++) != NUL) {
- if (c == Ctrl_V || c == '\n') {
- putc(Ctrl_V, fd);
- if (c == '\n')
- c = 'n';
- }
- putc(c, fd);
- }
- putc('\n', fd);
-}
-
-/*
- * Implementation of ":fixdel", also used by get_stty().
- * <BS> resulting <Del>
- * ^? ^H
- * not ^? ^?
- */
-void do_fixdel(exarg_T *eap)
-{
- char_u *p;
-
- p = find_termcode((char_u *)"kb");
- add_termcode((char_u *)"kD", p != NULL
- && *p == DEL ? (char_u *)CTRL_H_STR : DEL_STR, FALSE);
-}
-
-void print_line_no_prefix(linenr_T lnum, int use_number, int list)
-{
- char_u numbuf[30];
-
- if (curwin->w_p_nu || use_number) {
- vim_snprintf((char *)numbuf, sizeof(numbuf),
- "%*ld ", number_width(curwin), (long)lnum);
- msg_puts_attr(numbuf, hl_attr(HLF_N)); /* Highlight line nrs */
- }
- msg_prt_line(ml_get(lnum), list);
-}
-
-/*
- * Print a text line. Also in silent mode ("ex -s").
- */
-void print_line(linenr_T lnum, int use_number, int list)
-{
- int save_silent = silent_mode;
-
- msg_start();
- silent_mode = FALSE;
- info_message = TRUE; /* use mch_msg(), not mch_errmsg() */
- print_line_no_prefix(lnum, use_number, list);
- if (save_silent) {
- msg_putchar('\n');
- cursor_on(); /* msg_start() switches it off */
- out_flush();
- silent_mode = save_silent;
- }
- info_message = FALSE;
-}
-
-int rename_buffer(char_u *new_fname)
-{
- char_u *fname, *sfname, *xfname;
- buf_T *buf;
-
- buf = curbuf;
- apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf);
- /* buffer changed, don't change name now */
- if (buf != curbuf)
- return FAIL;
- if (aborting()) /* autocmds may abort script processing */
- return FAIL;
- /*
- * The name of the current buffer will be changed.
- * A new (unlisted) buffer entry needs to be made to hold the old file
- * name, which will become the alternate file name.
- * But don't set the alternate file name if the buffer didn't have a
- * name.
- */
- fname = curbuf->b_ffname;
- sfname = curbuf->b_sfname;
- xfname = curbuf->b_fname;
- curbuf->b_ffname = NULL;
- curbuf->b_sfname = NULL;
- if (setfname(curbuf, new_fname, NULL, TRUE) == FAIL) {
- curbuf->b_ffname = fname;
- curbuf->b_sfname = sfname;
- return FAIL;
- }
- curbuf->b_flags |= BF_NOTEDITED;
- if (xfname != NULL && *xfname != NUL) {
- buf = buflist_new(fname, xfname, curwin->w_cursor.lnum, 0);
- if (buf != NULL && !cmdmod.keepalt)
- curwin->w_alt_fnum = buf->b_fnum;
- }
- free(fname);
- free(sfname);
- apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf);
- /* Change directories when the 'acd' option is set. */
- do_autochdir();
- return OK;
-}
-
-/*
- * ":file[!] [fname]".
- */
-void ex_file(exarg_T *eap)
-{
- /* ":0file" removes the file name. Check for illegal uses ":3file",
- * "0file name", etc. */
- if (eap->addr_count > 0
- && (*eap->arg != NUL
- || eap->line2 > 0
- || eap->addr_count > 1)) {
- EMSG(_(e_invarg));
- return;
- }
-
- if (*eap->arg != NUL || eap->addr_count == 1) {
- if (rename_buffer(eap->arg) == FAIL)
- return;
- }
- /* print full file name if :cd used */
- fileinfo(FALSE, FALSE, eap->forceit);
-}
-
-/*
- * ":update".
- */
-void ex_update(exarg_T *eap)
-{
- if (curbufIsChanged())
- (void)do_write(eap);
-}
-
-/*
- * ":write" and ":saveas".
- */
-void ex_write(exarg_T *eap)
-{
- if (eap->usefilter) /* input lines to shell command */
- do_bang(1, eap, FALSE, TRUE, FALSE);
- else
- (void)do_write(eap);
-}
-
-/*
- * write current buffer to file 'eap->arg'
- * if 'eap->append' is TRUE, append to the file
- *
- * if *eap->arg == NUL write to current file
- *
- * return FAIL for failure, OK otherwise
- */
-int do_write(exarg_T *eap)
-{
- int other;
- char_u *fname = NULL; /* init to shut up gcc */
- char_u *ffname;
- int retval = FAIL;
- char_u *free_fname = NULL;
- buf_T *alt_buf = NULL;
-
- if (not_writing()) /* check 'write' option */
- return FAIL;
-
- ffname = eap->arg;
- if (*ffname == NUL) {
- if (eap->cmdidx == CMD_saveas) {
- EMSG(_(e_argreq));
- goto theend;
- }
- other = FALSE;
- } else {
- fname = ffname;
- free_fname = fix_fname(ffname);
- /*
- * When out-of-memory, keep unexpanded file name, because we MUST be
- * able to write the file in this situation.
- */
- if (free_fname != NULL)
- ffname = free_fname;
- other = otherfile(ffname);
- }
-
- /*
- * If we have a new file, put its name in the list of alternate file names.
- */
- if (other) {
- if (vim_strchr(p_cpo, CPO_ALTWRITE) != NULL
- || eap->cmdidx == CMD_saveas)
- alt_buf = setaltfname(ffname, fname, (linenr_T)1);
- else
- alt_buf = buflist_findname(ffname);
- if (alt_buf != NULL && alt_buf->b_ml.ml_mfp != NULL) {
- /* Overwriting a file that is loaded in another buffer is not a
- * good idea. */
- EMSG(_(e_bufloaded));
- goto theend;
- }
- }
-
- /*
- * Writing to the current file is not allowed in readonly mode
- * and a file name is required.
- * "nofile" and "nowrite" buffers cannot be written implicitly either.
- */
- if (!other && (
- bt_dontwrite_msg(curbuf) ||
- check_fname() == FAIL || check_readonly(&eap->forceit, curbuf)))
- goto theend;
-
- if (!other) {
- ffname = curbuf->b_ffname;
- fname = curbuf->b_fname;
- /*
- * Not writing the whole file is only allowed with '!'.
- */
- if ( (eap->line1 != 1
- || eap->line2 != curbuf->b_ml.ml_line_count)
- && !eap->forceit
- && !eap->append
- && !p_wa) {
- if (p_confirm || cmdmod.confirm) {
- if (vim_dialog_yesno(VIM_QUESTION, NULL,
- (char_u *)_("Write partial file?"), 2) != VIM_YES)
- goto theend;
- eap->forceit = TRUE;
- } else {
- EMSG(_("E140: Use ! to write partial buffer"));
- goto theend;
- }
- }
- }
-
- if (check_overwrite(eap, curbuf, fname, ffname, other) == OK) {
- if (eap->cmdidx == CMD_saveas && alt_buf != NULL) {
- buf_T *was_curbuf = curbuf;
-
- apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf);
- apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, alt_buf);
- if (curbuf != was_curbuf || aborting()) {
- /* buffer changed, don't change name now */
- retval = FAIL;
- goto theend;
- }
- /* Exchange the file names for the current and the alternate
- * buffer. This makes it look like we are now editing the buffer
- * under the new name. Must be done before buf_write(), because
- * if there is no file name and 'cpo' contains 'F', it will set
- * the file name. */
- fname = alt_buf->b_fname;
- alt_buf->b_fname = curbuf->b_fname;
- curbuf->b_fname = fname;
- fname = alt_buf->b_ffname;
- alt_buf->b_ffname = curbuf->b_ffname;
- curbuf->b_ffname = fname;
- fname = alt_buf->b_sfname;
- alt_buf->b_sfname = curbuf->b_sfname;
- curbuf->b_sfname = fname;
- buf_name_changed(curbuf);
- apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf);
- apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, alt_buf);
- if (!alt_buf->b_p_bl) {
- alt_buf->b_p_bl = TRUE;
- apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, alt_buf);
- }
- if (curbuf != was_curbuf || aborting()) {
- /* buffer changed, don't write the file */
- retval = FAIL;
- goto theend;
- }
-
- /* If 'filetype' was empty try detecting it now. */
- if (*curbuf->b_p_ft == NUL) {
- if (au_has_group((char_u *)"filetypedetect"))
- (void)do_doautocmd((char_u *)"filetypedetect BufRead",
- TRUE);
- do_modelines(0);
- }
-
- /* Autocommands may have changed buffer names, esp. when
- * 'autochdir' is set. */
- fname = curbuf->b_sfname;
- }
-
- retval = buf_write(curbuf, ffname, fname, eap->line1, eap->line2,
- eap, eap->append, eap->forceit, TRUE, FALSE);
-
- /* After ":saveas fname" reset 'readonly'. */
- if (eap->cmdidx == CMD_saveas) {
- if (retval == OK) {
- curbuf->b_p_ro = FALSE;
- redraw_tabline = TRUE;
- }
- /* Change directories when the 'acd' option is set. */
- do_autochdir();
- }
- }
-
-theend:
- free(free_fname);
- return retval;
-}
-
-/*
- * Check if it is allowed to overwrite a file. If b_flags has BF_NOTEDITED,
- * BF_NEW or BF_READERR, check for overwriting current file.
- * May set eap->forceit if a dialog says it's OK to overwrite.
- * Return OK if it's OK, FAIL if it is not.
- */
-int
-check_overwrite (
- exarg_T *eap,
- buf_T *buf,
- char_u *fname, /* file name to be used (can differ from
- buf->ffname) */
- char_u *ffname, /* full path version of fname */
- int other /* writing under other name */
-)
-{
- /*
- * write to other file or b_flags set or not writing the whole file:
- * overwriting only allowed with '!'
- */
- if ( (other
- || (buf->b_flags & BF_NOTEDITED)
- || ((buf->b_flags & BF_NEW)
- && vim_strchr(p_cpo, CPO_OVERNEW) == NULL)
- || (buf->b_flags & BF_READERR))
- && !p_wa
- && !bt_nofile(buf)
- && os_file_exists(ffname)) {
- if (!eap->forceit && !eap->append) {
-#ifdef UNIX
- /* with UNIX it is possible to open a directory */
- if (os_isdir(ffname)) {
- EMSG2(_(e_isadir2), ffname);
- return FAIL;
- }
-#endif
- if (p_confirm || cmdmod.confirm) {
- char_u buff[DIALOG_MSG_SIZE];
-
- dialog_msg(buff, _("Overwrite existing file \"%s\"?"), fname);
- if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) != VIM_YES)
- return FAIL;
- eap->forceit = TRUE;
- } else {
- EMSG(_(e_exists));
- return FAIL;
- }
- }
-
- /* For ":w! filename" check that no swap file exists for "filename". */
- if (other && !emsg_silent) {
- char_u *dir;
- char_u *p;
- char_u *swapname;
-
- /* We only try the first entry in 'directory', without checking if
- * it's writable. If the "." directory is not writable the write
- * will probably fail anyway.
- * Use 'shortname' of the current buffer, since there is no buffer
- * for the written file. */
- if (*p_dir == NUL) {
- dir = xmalloc(5);
- STRCPY(dir, ".");
- } else {
- dir = xmalloc(MAXPATHL);
- p = p_dir;
- copy_option_part(&p, dir, MAXPATHL, ",");
- }
- swapname = makeswapname(fname, ffname, curbuf, dir);
- free(dir);
- if (os_file_exists(swapname)) {
- if (p_confirm || cmdmod.confirm) {
- char_u buff[DIALOG_MSG_SIZE];
-
- dialog_msg(buff,
- _("Swap file \"%s\" exists, overwrite anyway?"),
- swapname);
- if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2)
- != VIM_YES) {
- free(swapname);
- return FAIL;
- }
- eap->forceit = TRUE;
- } else {
- EMSG2(_("E768: Swap file exists: %s (:silent! overrides)"),
- swapname);
- free(swapname);
- return FAIL;
- }
- }
- free(swapname);
- }
- }
- return OK;
-}
-
-/*
- * Handle ":wnext", ":wNext" and ":wprevious" commands.
- */
-void ex_wnext(exarg_T *eap)
-{
- int i;
-
- if (eap->cmd[1] == 'n')
- i = curwin->w_arg_idx + (int)eap->line2;
- else
- i = curwin->w_arg_idx - (int)eap->line2;
- eap->line1 = 1;
- eap->line2 = curbuf->b_ml.ml_line_count;
- if (do_write(eap) != FAIL)
- do_argfile(eap, i);
-}
-
-/*
- * ":wall", ":wqall" and ":xall": Write all changed files (and exit).
- */
-void do_wqall(exarg_T *eap)
-{
- buf_T *buf;
- int error = 0;
- int save_forceit = eap->forceit;
-
- if (eap->cmdidx == CMD_xall || eap->cmdidx == CMD_wqall)
- exiting = TRUE;
-
- for (buf = firstbuf; buf != NULL; buf = buf->b_next) {
- if (bufIsChanged(buf)) {
- /*
- * Check if there is a reason the buffer cannot be written:
- * 1. if the 'write' option is set
- * 2. if there is no file name (even after browsing)
- * 3. if the 'readonly' is set (even after a dialog)
- * 4. if overwriting is allowed (even after a dialog)
- */
- if (not_writing()) {
- ++error;
- break;
- }
- if (buf->b_ffname == NULL) {
- EMSGN(_("E141: No file name for buffer %" PRId64), buf->b_fnum);
- ++error;
- } else if (check_readonly(&eap->forceit, buf)
- || check_overwrite(eap, buf, buf->b_fname, buf->b_ffname,
- FALSE) == FAIL) {
- ++error;
- } else {
- if (buf_write_all(buf, eap->forceit) == FAIL)
- ++error;
- /* an autocommand may have deleted the buffer */
- if (!buf_valid(buf))
- buf = firstbuf;
- }
- eap->forceit = save_forceit; /* check_overwrite() may set it */
- }
- }
- if (exiting) {
- if (!error)
- getout(0); /* exit Vim */
- not_exiting();
- }
-}
-
-/*
- * Check the 'write' option.
- * Return TRUE and give a message when it's not st.
- */
-int not_writing(void)
-{
- if (p_write)
- return FALSE;
- EMSG(_("E142: File not written: Writing is disabled by 'write' option"));
- return TRUE;
-}
-
-/*
- * Check if a buffer is read-only (either 'readonly' option is set or file is
- * read-only). Ask for overruling in a dialog. Return TRUE and give an error
- * message when the buffer is readonly.
- */
-static int check_readonly(int *forceit, buf_T *buf)
-{
- /* Handle a file being readonly when the 'readonly' option is set or when
- * the file exists and permissions are read-only. */
- if (!*forceit && (buf->b_p_ro
- || (os_file_exists(buf->b_ffname)
- && os_file_is_readonly((char *)buf->b_ffname)))) {
- if ((p_confirm || cmdmod.confirm) && buf->b_fname != NULL) {
- char_u buff[DIALOG_MSG_SIZE];
-
- if (buf->b_p_ro)
- dialog_msg(buff,
- _(
- "'readonly' option is set for \"%s\".\nDo you wish to write anyway?"),
- buf->b_fname);
- else
- dialog_msg(buff,
- _(
- "File permissions of \"%s\" are read-only.\nIt may still be possible to write it.\nDo you wish to try?"),
- buf->b_fname);
-
- if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) == VIM_YES) {
- /* Set forceit, to force the writing of a readonly file */
- *forceit = TRUE;
- return FALSE;
- } else
- return TRUE;
- } else if (buf->b_p_ro)
- EMSG(_(e_readonly));
- else
- EMSG2(_("E505: \"%s\" is read-only (add ! to override)"),
- buf->b_fname);
- return TRUE;
- }
-
- return FALSE;
-}
-
-/*
- * Try to abandon current file and edit a new or existing file.
- * 'fnum' is the number of the file, if zero use ffname/sfname.
- *
- * Return 1 for "normal" error, 2 for "not written" error, 0 for success
- * -1 for successfully opening another file.
- * 'lnum' is the line number for the cursor in the new file (if non-zero).
- */
-int getfile(int fnum, char_u *ffname, char_u *sfname, int setpm, linenr_T lnum, int forceit)
-{
- int other;
- int retval;
- char_u *free_me = NULL;
-
- if (text_locked())
- return 1;
- if (curbuf_locked())
- return 1;
-
- if (fnum == 0) {
- /* make ffname full path, set sfname */
- fname_expand(curbuf, &ffname, &sfname);
- other = otherfile(ffname);
- free_me = ffname; /* has been allocated, free() later */
- } else
- other = (fnum != curbuf->b_fnum);
-
- if (other)
- ++no_wait_return; /* don't wait for autowrite message */
- if (other && !forceit && curbuf->b_nwindows == 1 && !P_HID(curbuf)
- && curbufIsChanged() && autowrite(curbuf, forceit) == FAIL) {
- if (p_confirm && p_write)
- dialog_changed(curbuf, FALSE);
- if (curbufIsChanged()) {
- if (other)
- --no_wait_return;
- EMSG(_(e_nowrtmsg));
- retval = 2; /* file has been changed */
- goto theend;
- }
- }
- if (other)
- --no_wait_return;
- if (setpm)
- setpcmark();
- if (!other) {
- if (lnum != 0)
- curwin->w_cursor.lnum = lnum;
- check_cursor_lnum();
- beginline(BL_SOL | BL_FIX);
- retval = 0; /* it's in the same file */
- } else if (do_ecmd(fnum, ffname, sfname, NULL, lnum,
- (P_HID(curbuf) ? ECMD_HIDE : 0) + (forceit ? ECMD_FORCEIT : 0),
- curwin) == OK)
- retval = -1; /* opened another file */
- else
- retval = 1; /* error encountered */
-
-theend:
- free(free_me);
- return retval;
-}
-
-/*
- * start editing a new file
- *
- * fnum: file number; if zero use ffname/sfname
- * ffname: the file name
- * - full path if sfname used,
- * - any file name if sfname is NULL
- * - empty string to re-edit with the same file name (but may be
- * in a different directory)
- * - NULL to start an empty buffer
- * sfname: the short file name (or NULL)
- * eap: contains the command to be executed after loading the file and
- * forced 'ff' and 'fenc'
- * newlnum: if > 0: put cursor on this line number (if possible)
- * if ECMD_LASTL: use last position in loaded file
- * if ECMD_LAST: use last position in all files
- * if ECMD_ONE: use first line
- * flags:
- * ECMD_HIDE: if TRUE don't free the current buffer
- * ECMD_SET_HELP: set b_help flag of (new) buffer before opening file
- * ECMD_OLDBUF: use existing buffer if it exists
- * ECMD_FORCEIT: ! used for Ex command
- * ECMD_ADDBUF: don't edit, just add to buffer list
- * oldwin: Should be "curwin" when editing a new buffer in the current
- * window, NULL when splitting the window first. When not NULL info
- * of the previous buffer for "oldwin" is stored.
- *
- * return FAIL for failure, OK otherwise
- */
-int
-do_ecmd (
- int fnum,
- char_u *ffname,
- char_u *sfname,
- exarg_T *eap, /* can be NULL! */
- linenr_T newlnum,
- int flags,
- win_T *oldwin
-)
-{
- int other_file; /* TRUE if editing another file */
- int oldbuf; /* TRUE if using existing buffer */
- int auto_buf = FALSE; /* TRUE if autocommands brought us
- into the buffer unexpectedly */
- char_u *new_name = NULL;
- int did_set_swapcommand = FALSE;
- buf_T *buf;
- buf_T *old_curbuf = curbuf;
- char_u *free_fname = NULL;
- int retval = FAIL;
- long n;
- linenr_T lnum;
- linenr_T topline = 0;
- int newcol = -1;
- int solcol = -1;
- pos_T *pos;
- char_u *command = NULL;
- int did_get_winopts = FALSE;
- int readfile_flags = 0;
-
- if (eap != NULL)
- command = eap->do_ecmd_cmd;
-
- if (fnum != 0) {
- if (fnum == curbuf->b_fnum) /* file is already being edited */
- return OK; /* nothing to do */
- other_file = TRUE;
- } else {
- /* if no short name given, use ffname for short name */
- if (sfname == NULL)
- sfname = ffname;
-#ifdef USE_FNAME_CASE
- if (sfname != NULL)
- fname_case(sfname, 0); /* set correct case for sfname */
-#endif
-
- if ((flags & ECMD_ADDBUF) && (ffname == NULL || *ffname == NUL))
- goto theend;
-
- if (ffname == NULL)
- other_file = TRUE;
- /* there is no file name */
- else if (*ffname == NUL && curbuf->b_ffname == NULL)
- other_file = FALSE;
- else {
- if (*ffname == NUL) { /* re-edit with same file name */
- ffname = curbuf->b_ffname;
- sfname = curbuf->b_fname;
- }
- free_fname = fix_fname(ffname); /* may expand to full path name */
- if (free_fname != NULL)
- ffname = free_fname;
- other_file = otherfile(ffname);
- }
- }
-
- /*
- * if the file was changed we may not be allowed to abandon it
- * - if we are going to re-edit the same file
- * - or if we are the only window on this file and if ECMD_HIDE is FALSE
- */
- if ( ((!other_file && !(flags & ECMD_OLDBUF))
- || (curbuf->b_nwindows == 1
- && !(flags & (ECMD_HIDE | ECMD_ADDBUF))))
- && check_changed(curbuf, (p_awa ? CCGD_AW : 0)
- | (other_file ? 0 : CCGD_MULTWIN)
- | ((flags & ECMD_FORCEIT) ? CCGD_FORCEIT : 0)
- | (eap == NULL ? 0 : CCGD_EXCMD))) {
- if (fnum == 0 && other_file && ffname != NULL)
- (void)setaltfname(ffname, sfname, newlnum < 0 ? 0 : newlnum);
- goto theend;
- }
-
- /*
- * End Visual mode before switching to another buffer, so the text can be
- * copied into the GUI selection buffer.
- */
- reset_VIsual();
-
- if ((command != NULL || newlnum > (linenr_T)0)
- && *get_vim_var_str(VV_SWAPCOMMAND) == NUL) {
- char_u *p;
-
- /* Set v:swapcommand for the SwapExists autocommands. */
- size_t len = (command != NULL) ? STRLEN(command) + 3 : 30;
- p = xmalloc(len);
- if (command != NULL) {
- vim_snprintf((char *)p, len, ":%s\r", command);
- } else {
- vim_snprintf((char *)p, len, "%" PRId64 "G", (int64_t)newlnum);
- }
- set_vim_var_string(VV_SWAPCOMMAND, p, -1);
- did_set_swapcommand = TRUE;
- free(p);
- }
-
- /*
- * If we are starting to edit another file, open a (new) buffer.
- * Otherwise we re-use the current buffer.
- */
- if (other_file) {
- if (!(flags & ECMD_ADDBUF)) {
- if (!cmdmod.keepalt)
- curwin->w_alt_fnum = curbuf->b_fnum;
- if (oldwin != NULL)
- buflist_altfpos(oldwin);
- }
-
- if (fnum)
- buf = buflist_findnr(fnum);
- else {
- if (flags & ECMD_ADDBUF) {
- linenr_T tlnum = 1L;
-
- if (command != NULL) {
- tlnum = atol((char *)command);
- if (tlnum <= 0)
- tlnum = 1L;
- }
- (void)buflist_new(ffname, sfname, tlnum, BLN_LISTED);
- goto theend;
- }
- buf = buflist_new(ffname, sfname, 0L,
- BLN_CURBUF | ((flags & ECMD_SET_HELP) ? 0 : BLN_LISTED));
- // Autocmds may change curwin and curbuf.
- if (oldwin != NULL) {
- oldwin = curwin;
- }
- old_curbuf = curbuf;
- }
- if (buf == NULL)
- goto theend;
- if (buf->b_ml.ml_mfp == NULL) { /* no memfile yet */
- oldbuf = FALSE;
- buf->b_nwindows = 0;
- } else { /* existing memfile */
- oldbuf = TRUE;
- (void)buf_check_timestamp(buf, FALSE);
- /* Check if autocommands made buffer invalid or changed the current
- * buffer. */
- if (!buf_valid(buf)
- || curbuf != old_curbuf
- )
- goto theend;
- if (aborting()) /* autocmds may abort script processing */
- goto theend;
- }
-
- /* May jump to last used line number for a loaded buffer or when asked
- * for explicitly */
- if ((oldbuf && newlnum == ECMD_LASTL) || newlnum == ECMD_LAST) {
- pos = buflist_findfpos(buf);
- newlnum = pos->lnum;
- solcol = pos->col;
- }
-
- /*
- * Make the (new) buffer the one used by the current window.
- * If the old buffer becomes unused, free it if ECMD_HIDE is FALSE.
- * If the current buffer was empty and has no file name, curbuf
- * is returned by buflist_new().
- */
- if (buf != curbuf) {
- /*
- * Be careful: The autocommands may delete any buffer and change
- * the current buffer.
- * - If the buffer we are going to edit is deleted, give up.
- * - If the current buffer is deleted, prefer to load the new
- * buffer when loading a buffer is required. This avoids
- * loading another buffer which then must be closed again.
- * - If we ended up in the new buffer already, need to skip a few
- * things, set auto_buf.
- */
- if (buf->b_fname != NULL)
- new_name = vim_strsave(buf->b_fname);
- au_new_curbuf = buf;
- apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf);
- if (!buf_valid(buf)) { /* new buffer has been deleted */
- delbuf_msg(new_name); /* frees new_name */
- goto theend;
- }
- if (aborting()) { /* autocmds may abort script processing */
- free(new_name);
- goto theend;
- }
- if (buf == curbuf) /* already in new buffer */
- auto_buf = TRUE;
- else {
- if (curbuf == old_curbuf)
- buf_copy_options(buf, BCO_ENTER);
-
- /* close the link to the current buffer */
- u_sync(FALSE);
- close_buffer(oldwin, curbuf,
- (flags & ECMD_HIDE) ? 0 : DOBUF_UNLOAD, FALSE);
-
- /* Autocommands may open a new window and leave oldwin open
- * which leads to crashes since the above call sets
- * oldwin->w_buffer to NULL. */
- if (curwin != oldwin && oldwin != aucmd_win
- && win_valid(oldwin) && oldwin->w_buffer == NULL)
- win_close(oldwin, FALSE);
-
- if (aborting()) { /* autocmds may abort script processing */
- free(new_name);
- goto theend;
- }
- /* Be careful again, like above. */
- if (!buf_valid(buf)) { /* new buffer has been deleted */
- delbuf_msg(new_name); /* frees new_name */
- goto theend;
- }
- if (buf == curbuf) /* already in new buffer */
- auto_buf = TRUE;
- else {
- /*
- * <VN> We could instead free the synblock
- * and re-attach to buffer, perhaps.
- */
- if (curwin->w_buffer != NULL &&
- curwin->w_s == &(curwin->w_buffer->b_s))
- curwin->w_s = &(buf->b_s);
-
- curwin->w_buffer = buf;
- curbuf = buf;
- ++curbuf->b_nwindows;
-
- /* Set 'fileformat', 'binary' and 'fenc' when forced. */
- if (!oldbuf && eap != NULL) {
- set_file_options(TRUE, eap);
- set_forced_fenc(eap);
- }
- }
-
- /* May get the window options from the last time this buffer
- * was in this window (or another window). If not used
- * before, reset the local window options to the global
- * values. Also restores old folding stuff. */
- get_winopts(curbuf);
- did_get_winopts = TRUE;
-
- }
- free(new_name);
- au_new_curbuf = NULL;
- } else
- ++curbuf->b_nwindows;
-
- curwin->w_pcmark.lnum = 1;
- curwin->w_pcmark.col = 0;
- } else { /* !other_file */
- if (
- (flags & ECMD_ADDBUF) ||
- check_fname() == FAIL)
- goto theend;
- oldbuf = (flags & ECMD_OLDBUF);
- }
-
- if ((flags & ECMD_SET_HELP) || keep_help_flag) {
- char_u *p;
-
- curbuf->b_help = TRUE;
- set_string_option_direct((char_u *)"buftype", -1,
- (char_u *)"help", OPT_FREE|OPT_LOCAL, 0);
-
- /*
- * Always set these options after jumping to a help tag, because the
- * user may have an autocommand that gets in the way.
- * Accept all ASCII chars for keywords, except ' ', '*', '"', '|', and
- * latin1 word characters (for translated help files).
- * Only set it when needed, buf_init_chartab() is some work.
- */
- p =
- (char_u *)"!-~,^*,^|,^\",192-255";
- if (STRCMP(curbuf->b_p_isk, p) != 0) {
- set_string_option_direct((char_u *)"isk", -1, p,
- OPT_FREE|OPT_LOCAL, 0);
- check_buf_options(curbuf);
- (void)buf_init_chartab(curbuf, FALSE);
- }
-
- curbuf->b_p_ts = 8; /* 'tabstop' is 8 */
- curwin->w_p_list = FALSE; /* no list mode */
-
- curbuf->b_p_ma = FALSE; /* not modifiable */
- curbuf->b_p_bin = FALSE; /* reset 'bin' before reading file */
- curwin->w_p_nu = 0; /* no line numbers */
- curwin->w_p_rnu = 0; /* no relative line numbers */
- RESET_BINDING(curwin); /* no scroll or cursor binding */
- curwin->w_p_arab = FALSE; /* no arabic mode */
- curwin->w_p_rl = FALSE; /* help window is left-to-right */
- curwin->w_p_fen = FALSE; /* No folding in the help window */
- curwin->w_p_diff = FALSE; /* No 'diff' */
- curwin->w_p_spell = FALSE; /* No spell checking */
-
- buf = curbuf;
- set_buflisted(FALSE);
- } else {
- buf = curbuf;
- /* Don't make a buffer listed if it's a help buffer. Useful when
- * using CTRL-O to go back to a help file. */
- if (!curbuf->b_help)
- set_buflisted(TRUE);
- }
-
- /* If autocommands change buffers under our fingers, forget about
- * editing the file. */
- if (buf != curbuf)
- goto theend;
- if (aborting()) /* autocmds may abort script processing */
- goto theend;
-
- /* Since we are starting to edit a file, consider the filetype to be
- * unset. Helps for when an autocommand changes files and expects syntax
- * highlighting to work in the other file. */
- did_filetype = FALSE;
-
- /*
- * other_file oldbuf
- * FALSE FALSE re-edit same file, buffer is re-used
- * FALSE TRUE re-edit same file, nothing changes
- * TRUE FALSE start editing new file, new buffer
- * TRUE TRUE start editing in existing buffer (nothing to do)
- */
- if (!other_file && !oldbuf) { /* re-use the buffer */
- set_last_cursor(curwin); /* may set b_last_cursor */
- if (newlnum == ECMD_LAST || newlnum == ECMD_LASTL) {
- newlnum = curwin->w_cursor.lnum;
- solcol = curwin->w_cursor.col;
- }
- buf = curbuf;
- if (buf->b_fname != NULL)
- new_name = vim_strsave(buf->b_fname);
- else
- new_name = NULL;
- if (p_ur < 0 || curbuf->b_ml.ml_line_count <= p_ur) {
- /* Save all the text, so that the reload can be undone.
- * Sync first so that this is a separate undo-able action. */
- u_sync(FALSE);
- if (u_savecommon(0, curbuf->b_ml.ml_line_count + 1, 0, TRUE)
- == FAIL)
- goto theend;
- u_unchanged(curbuf);
- buf_freeall(curbuf, BFA_KEEP_UNDO);
-
- /* tell readfile() not to clear or reload undo info */
- readfile_flags = READ_KEEP_UNDO;
- } else
- buf_freeall(curbuf, 0); /* free all things for buffer */
- /* If autocommands deleted the buffer we were going to re-edit, give
- * up and jump to the end. */
- if (!buf_valid(buf)) {
- delbuf_msg(new_name); /* frees new_name */
- goto theend;
- }
- free(new_name);
-
- /* If autocommands change buffers under our fingers, forget about
- * re-editing the file. Should do the buf_clear_file(), but perhaps
- * the autocommands changed the buffer... */
- if (buf != curbuf)
- goto theend;
- if (aborting()) /* autocmds may abort script processing */
- goto theend;
- buf_clear_file(curbuf);
- curbuf->b_op_start.lnum = 0; /* clear '[ and '] marks */
- curbuf->b_op_end.lnum = 0;
- }
-
- /*
- * If we get here we are sure to start editing
- */
- /* don't redraw until the cursor is in the right line */
- ++RedrawingDisabled;
-
- /* Assume success now */
- retval = OK;
-
- /*
- * Reset cursor position, could be used by autocommands.
- */
- check_cursor();
-
- /*
- * Check if we are editing the w_arg_idx file in the argument list.
- */
- check_arg_idx(curwin);
-
- if (!auto_buf) {
- /*
- * Set cursor and init window before reading the file and executing
- * autocommands. This allows for the autocommands to position the
- * cursor.
- */
- curwin_init();
-
- /* It's possible that all lines in the buffer changed. Need to update
- * automatic folding for all windows where it's used. */
- {
- win_T *win;
- tabpage_T *tp;
-
- FOR_ALL_TAB_WINDOWS(tp, win)
- if (win->w_buffer == curbuf)
- foldUpdateAll(win);
- }
-
- /* Change directories when the 'acd' option is set. */
- do_autochdir();
-
- /*
- * Careful: open_buffer() and apply_autocmds() may change the current
- * buffer and window.
- */
- lnum = curwin->w_cursor.lnum;
- topline = curwin->w_topline;
- if (!oldbuf) { /* need to read the file */
-#if defined(HAS_SWAP_EXISTS_ACTION)
- swap_exists_action = SEA_DIALOG;
-#endif
- curbuf->b_flags |= BF_CHECK_RO; /* set/reset 'ro' flag */
-
- /*
- * Open the buffer and read the file.
- */
- if (should_abort(open_buffer(FALSE, eap, readfile_flags)))
- retval = FAIL;
-
-#if defined(HAS_SWAP_EXISTS_ACTION)
- if (swap_exists_action == SEA_QUIT)
- retval = FAIL;
- handle_swap_exists(old_curbuf);
-#endif
- } else {
- /* Read the modelines, but only to set window-local options. Any
- * buffer-local options have already been set and may have been
- * changed by the user. */
- do_modelines(OPT_WINONLY);
-
- apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf,
- &retval);
- apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf,
- &retval);
- }
- check_arg_idx(curwin);
-
- /*
- * If autocommands change the cursor position or topline, we should
- * keep it.
- */
- if (curwin->w_cursor.lnum != lnum) {
- newlnum = curwin->w_cursor.lnum;
- newcol = curwin->w_cursor.col;
- }
- if (curwin->w_topline == topline)
- topline = 0;
-
- /* Even when cursor didn't move we need to recompute topline. */
- changed_line_abv_curs();
-
- maketitle();
- }
-
- /* Tell the diff stuff that this buffer is new and/or needs updating.
- * Also needed when re-editing the same buffer, because unloading will
- * have removed it as a diff buffer. */
- if (curwin->w_p_diff) {
- diff_buf_add(curbuf);
- diff_invalidate(curbuf);
- }
-
- /* If the window options were changed may need to set the spell language.
- * Can only do this after the buffer has been properly setup. */
- if (did_get_winopts && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL)
- (void)did_set_spelllang(curwin);
-
- if (command == NULL) {
- if (newcol >= 0) { /* position set by autocommands */
- curwin->w_cursor.lnum = newlnum;
- curwin->w_cursor.col = newcol;
- check_cursor();
- } else if (newlnum > 0) { /* line number from caller or old position */
- curwin->w_cursor.lnum = newlnum;
- check_cursor_lnum();
- if (solcol >= 0 && !p_sol) {
- /* 'sol' is off: Use last known column. */
- curwin->w_cursor.col = solcol;
- check_cursor_col();
- curwin->w_cursor.coladd = 0;
- curwin->w_set_curswant = TRUE;
- } else
- beginline(BL_SOL | BL_FIX);
- } else { /* no line number, go to last line in Ex mode */
- if (exmode_active)
- curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
- beginline(BL_WHITE | BL_FIX);
- }
- }
-
- /* Check if cursors in other windows on the same buffer are still valid */
- check_lnums(FALSE);
-
- /*
- * Did not read the file, need to show some info about the file.
- * Do this after setting the cursor.
- */
- if (oldbuf
- && !auto_buf
- ) {
- int msg_scroll_save = msg_scroll;
-
- /* Obey the 'O' flag in 'cpoptions': overwrite any previous file
- * message. */
- if (shortmess(SHM_OVERALL) && !exiting && p_verbose == 0)
- msg_scroll = FALSE;
- if (!msg_scroll) /* wait a bit when overwriting an error msg */
- check_for_delay(FALSE);
- msg_start();
- msg_scroll = msg_scroll_save;
- msg_scrolled_ign = TRUE;
-
- fileinfo(FALSE, TRUE, FALSE);
-
- msg_scrolled_ign = FALSE;
- }
-
- if (command != NULL)
- do_cmdline(command, NULL, NULL, DOCMD_VERBOSE);
-
- if (curbuf->b_kmap_state & KEYMAP_INIT)
- (void)keymap_init();
-
- --RedrawingDisabled;
- if (!skip_redraw) {
- n = p_so;
- if (topline == 0 && command == NULL)
- p_so = 999; /* force cursor halfway the window */
- update_topline();
- curwin->w_scbind_pos = curwin->w_topline;
- p_so = n;
- redraw_curbuf_later(NOT_VALID); /* redraw this buffer later */
- }
-
- if (p_im)
- need_start_insertmode = TRUE;
-
- /* Change directories when the 'acd' option is set. */
- do_autochdir();
-
-
-theend:
- if (did_set_swapcommand)
- set_vim_var_string(VV_SWAPCOMMAND, NULL, -1);
- free(free_fname);
- return retval;
-}
-
-static void delbuf_msg(char_u *name)
-{
- EMSG2(_("E143: Autocommands unexpectedly deleted new buffer %s"),
- name == NULL ? (char_u *)"" : name);
- free(name);
- au_new_curbuf = NULL;
-}
-
-static int append_indent = 0; /* autoindent for first line */
-
-/*
- * ":insert" and ":append", also used by ":change"
- */
-void ex_append(exarg_T *eap)
-{
- char_u *theline;
- int did_undo = FALSE;
- linenr_T lnum = eap->line2;
- int indent = 0;
- char_u *p;
- int vcol;
- int empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
-
- /* the ! flag toggles autoindent */
- if (eap->forceit)
- curbuf->b_p_ai = !curbuf->b_p_ai;
-
- /* First autoindent comes from the line we start on */
- if (eap->cmdidx != CMD_change && curbuf->b_p_ai && lnum > 0)
- append_indent = get_indent_lnum(lnum);
-
- if (eap->cmdidx != CMD_append)
- --lnum;
-
- /* when the buffer is empty append to line 0 and delete the dummy line */
- if (empty && lnum == 1)
- lnum = 0;
-
- State = INSERT; /* behave like in Insert mode */
- if (curbuf->b_p_iminsert == B_IMODE_LMAP)
- State |= LANGMAP;
-
- for (;; ) {
- msg_scroll = TRUE;
- need_wait_return = FALSE;
- if (curbuf->b_p_ai) {
- if (append_indent >= 0) {
- indent = append_indent;
- append_indent = -1;
- } else if (lnum > 0)
- indent = get_indent_lnum(lnum);
- }
- ex_keep_indent = FALSE;
- if (eap->getline == NULL) {
- /* No getline() function, use the lines that follow. This ends
- * when there is no more. */
- if (eap->nextcmd == NULL || *eap->nextcmd == NUL)
- break;
- p = vim_strchr(eap->nextcmd, NL);
- if (p == NULL)
- p = eap->nextcmd + STRLEN(eap->nextcmd);
- theline = vim_strnsave(eap->nextcmd, (int)(p - eap->nextcmd));
- if (*p != NUL)
- ++p;
- eap->nextcmd = p;
- } else
- theline = eap->getline(
- eap->cstack->cs_looplevel > 0 ? -1 :
- NUL, eap->cookie, indent);
- lines_left = Rows - 1;
- if (theline == NULL)
- break;
-
- /* Using ^ CTRL-D in getexmodeline() makes us repeat the indent. */
- if (ex_keep_indent)
- append_indent = indent;
-
- /* Look for the "." after automatic indent. */
- vcol = 0;
- for (p = theline; indent > vcol; ++p) {
- if (*p == ' ')
- ++vcol;
- else if (*p == TAB)
- vcol += 8 - vcol % 8;
- else
- break;
- }
- if ((p[0] == '.' && p[1] == NUL)
- || (!did_undo && u_save(lnum, lnum + 1 + (empty ? 1 : 0))
- == FAIL)) {
- free(theline);
- break;
- }
-
- /* don't use autoindent if nothing was typed. */
- if (p[0] == NUL)
- theline[0] = NUL;
-
- did_undo = TRUE;
- ml_append(lnum, theline, (colnr_T)0, FALSE);
- appended_lines_mark(lnum, 1L);
-
- free(theline);
- ++lnum;
-
- if (empty) {
- ml_delete(2L, FALSE);
- empty = FALSE;
- }
- }
- State = NORMAL;
-
- if (eap->forceit)
- curbuf->b_p_ai = !curbuf->b_p_ai;
-
- /* "start" is set to eap->line2+1 unless that position is invalid (when
- * eap->line2 pointed to the end of the buffer and nothing was appended)
- * "end" is set to lnum when something has been appended, otherwise
- * it is the same than "start" -- Acevedo */
- curbuf->b_op_start.lnum = (eap->line2 < curbuf->b_ml.ml_line_count) ?
- eap->line2 + 1 : curbuf->b_ml.ml_line_count;
- if (eap->cmdidx != CMD_append)
- --curbuf->b_op_start.lnum;
- curbuf->b_op_end.lnum = (eap->line2 < lnum)
- ? lnum : curbuf->b_op_start.lnum;
- curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
- curwin->w_cursor.lnum = lnum;
- check_cursor_lnum();
- beginline(BL_SOL | BL_FIX);
-
- need_wait_return = FALSE; /* don't use wait_return() now */
- ex_no_reprint = TRUE;
-}
-
-/*
- * ":change"
- */
-void ex_change(exarg_T *eap)
-{
- linenr_T lnum;
-
- if (eap->line2 >= eap->line1
- && u_save(eap->line1 - 1, eap->line2 + 1) == FAIL)
- return;
-
- /* the ! flag toggles autoindent */
- if (eap->forceit ? !curbuf->b_p_ai : curbuf->b_p_ai)
- append_indent = get_indent_lnum(eap->line1);
-
- for (lnum = eap->line2; lnum >= eap->line1; --lnum) {
- if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to delete */
- break;
- ml_delete(eap->line1, FALSE);
- }
-
- /* make sure the cursor is not beyond the end of the file now */
- check_cursor_lnum();
- deleted_lines_mark(eap->line1, (long)(eap->line2 - lnum));
-
- /* ":append" on the line above the deleted lines. */
- eap->line2 = eap->line1;
- ex_append(eap);
-}
-
-void ex_z(exarg_T *eap)
-{
- char_u *x;
- int bigness;
- char_u *kind;
- int minus = 0;
- linenr_T start, end, curs, i;
- int j;
- linenr_T lnum = eap->line2;
-
- /* Vi compatible: ":z!" uses display height, without a count uses
- * 'scroll' */
- if (eap->forceit)
- bigness = curwin->w_height;
- else if (firstwin == lastwin)
- bigness = curwin->w_p_scr * 2;
- else
- bigness = curwin->w_height - 3;
- if (bigness < 1)
- bigness = 1;
-
- x = eap->arg;
- kind = x;
- if (*kind == '-' || *kind == '+' || *kind == '='
- || *kind == '^' || *kind == '.')
- ++x;
- while (*x == '-' || *x == '+')
- ++x;
-
- if (*x != 0) {
- if (!VIM_ISDIGIT(*x)) {
- EMSG(_("E144: non-numeric argument to :z"));
- return;
- } else {
- bigness = atoi((char *)x);
- p_window = bigness;
- if (*kind == '=')
- bigness += 2;
- }
- }
-
- /* the number of '-' and '+' multiplies the distance */
- if (*kind == '-' || *kind == '+')
- for (x = kind + 1; *x == *kind; ++x)
- ;
-
- switch (*kind) {
- case '-':
- start = lnum - bigness * (linenr_T)(x - kind) + 1;
- end = start + bigness - 1;
- curs = end;
- break;
-
- case '=':
- start = lnum - (bigness + 1) / 2 + 1;
- end = lnum + (bigness + 1) / 2 - 1;
- curs = lnum;
- minus = 1;
- break;
-
- case '^':
- start = lnum - bigness * 2;
- end = lnum - bigness;
- curs = lnum - bigness;
- break;
-
- case '.':
- start = lnum - (bigness + 1) / 2 + 1;
- end = lnum + (bigness + 1) / 2 - 1;
- curs = end;
- break;
-
- default: /* '+' */
- start = lnum;
- if (*kind == '+')
- start += bigness * (linenr_T)(x - kind - 1) + 1;
- else if (eap->addr_count == 0)
- ++start;
- end = start + bigness - 1;
- curs = end;
- break;
- }
-
- if (start < 1)
- start = 1;
-
- if (end > curbuf->b_ml.ml_line_count)
- end = curbuf->b_ml.ml_line_count;
-
- if (curs > curbuf->b_ml.ml_line_count)
- curs = curbuf->b_ml.ml_line_count;
-
- for (i = start; i <= end; i++) {
- if (minus && i == lnum) {
- msg_putchar('\n');
-
- for (j = 1; j < Columns; j++)
- msg_putchar('-');
- }
-
- print_line(i, eap->flags & EXFLAG_NR, eap->flags & EXFLAG_LIST);
-
- if (minus && i == lnum) {
- msg_putchar('\n');
-
- for (j = 1; j < Columns; j++)
- msg_putchar('-');
- }
- }
-
- curwin->w_cursor.lnum = curs;
- ex_no_reprint = TRUE;
-}
-
-/*
- * Check if the restricted flag is set.
- * If so, give an error message and return TRUE.
- * Otherwise, return FALSE.
- */
-int check_restricted(void)
-{
- if (restricted) {
- EMSG(_("E145: Shell commands not allowed in rvim"));
- return TRUE;
- }
- return FALSE;
-}
-
-/*
- * Check if the secure flag is set (.exrc or .vimrc in current directory).
- * If so, give an error message and return TRUE.
- * Otherwise, return FALSE.
- */
-int check_secure(void)
-{
- if (secure) {
- secure = 2;
- EMSG(_(e_curdir));
- return TRUE;
- }
-#ifdef HAVE_SANDBOX
- /*
- * In the sandbox more things are not allowed, including the things
- * disallowed in secure mode.
- */
- if (sandbox != 0) {
- EMSG(_(e_sandbox));
- return TRUE;
- }
-#endif
- return FALSE;
-}
-
-static char_u *old_sub = NULL; /* previous substitute pattern */
-static int global_need_beginline; /* call beginline() after ":g" */
-
-/* do_sub()
- *
- * Perform a substitution from line eap->line1 to line eap->line2 using the
- * command pointed to by eap->arg which should be of the form:
- *
- * /pattern/substitution/{flags}
- *
- * The usual escapes are supported as described in the regexp docs.
- */
-void do_sub(exarg_T *eap)
-{
- linenr_T lnum;
- long i = 0;
- regmmatch_T regmatch;
- static int do_all = FALSE; /* do multiple substitutions per line */
- static int do_ask = FALSE; /* ask for confirmation */
- static int do_count = FALSE; /* count only */
- static int do_error = TRUE; /* if false, ignore errors */
- static int do_print = FALSE; /* print last line with subs. */
- static int do_list = FALSE; /* list last line with subs. */
- static int do_number = FALSE; /* list last line with line nr*/
- static int do_ic = 0; /* ignore case flag */
- char_u *pat = NULL, *sub = NULL; /* init for GCC */
- int delimiter;
- int sublen;
- int got_quit = FALSE;
- int got_match = FALSE;
- int temp;
- int which_pat;
- char_u *cmd;
- int save_State;
- linenr_T first_line = 0; /* first changed line */
- linenr_T last_line= 0; /* below last changed line AFTER the
- * change */
- linenr_T old_line_count = curbuf->b_ml.ml_line_count;
- linenr_T line2;
- long nmatch; /* number of lines in match */
- char_u *sub_firstline; /* allocated copy of first sub line */
- int endcolumn = FALSE; /* cursor in last column when done */
- pos_T old_cursor = curwin->w_cursor;
- int start_nsubs;
- int save_ma = 0;
-
- cmd = eap->arg;
- if (!global_busy) {
- sub_nsubs = 0;
- sub_nlines = 0;
- }
- start_nsubs = sub_nsubs;
-
- if (eap->cmdidx == CMD_tilde)
- which_pat = RE_LAST; /* use last used regexp */
- else
- which_pat = RE_SUBST; /* use last substitute regexp */
-
- /* new pattern and substitution */
- if (eap->cmd[0] == 's' && *cmd != NUL && !vim_iswhite(*cmd)
- && vim_strchr((char_u *)"0123456789cegriIp|\"", *cmd) == NULL) {
- /* don't accept alphanumeric for separator */
- if (isalpha(*cmd)) {
- EMSG(_("E146: Regular expressions can't be delimited by letters"));
- return;
- }
- /*
- * undocumented vi feature:
- * "\/sub/" and "\?sub?" use last used search pattern (almost like
- * //sub/r). "\&sub&" use last substitute pattern (like //sub/).
- */
- if (*cmd == '\\') {
- ++cmd;
- if (vim_strchr((char_u *)"/?&", *cmd) == NULL) {
- EMSG(_(e_backslash));
- return;
- }
- if (*cmd != '&')
- which_pat = RE_SEARCH; /* use last '/' pattern */
- pat = (char_u *)""; /* empty search pattern */
- delimiter = *cmd++; /* remember delimiter character */
- } else { /* find the end of the regexp */
- if (p_altkeymap && curwin->w_p_rl)
- lrF_sub(cmd);
- which_pat = RE_LAST; /* use last used regexp */
- delimiter = *cmd++; /* remember delimiter character */
- pat = cmd; /* remember start of search pat */
- cmd = skip_regexp(cmd, delimiter, p_magic, &eap->arg);
- if (cmd[0] == delimiter) /* end delimiter found */
- *cmd++ = NUL; /* replace it with a NUL */
- }
-
- /*
- * Small incompatibility: vi sees '\n' as end of the command, but in
- * Vim we want to use '\n' to find/substitute a NUL.
- */
- sub = cmd; /* remember the start of the substitution */
-
- while (cmd[0]) {
- if (cmd[0] == delimiter) { /* end delimiter found */
- *cmd++ = NUL; /* replace it with a NUL */
- break;
- }
- if (cmd[0] == '\\' && cmd[1] != 0) /* skip escaped characters */
- ++cmd;
- mb_ptr_adv(cmd);
- }
-
- if (!eap->skip) {
- /* In POSIX vi ":s/pat/%/" uses the previous subst. string. */
- if (STRCMP(sub, "%") == 0
- && vim_strchr(p_cpo, CPO_SUBPERCENT) != NULL) {
- if (old_sub == NULL) { /* there is no previous command */
- EMSG(_(e_nopresub));
- return;
- }
- sub = old_sub;
- } else {
- free(old_sub);
- old_sub = vim_strsave(sub);
- }
- }
- } else if (!eap->skip) { /* use previous pattern and substitution */
- if (old_sub == NULL) { /* there is no previous command */
- EMSG(_(e_nopresub));
- return;
- }
- pat = NULL; /* search_regcomp() will use previous pattern */
- sub = old_sub;
-
- /* Vi compatibility quirk: repeating with ":s" keeps the cursor in the
- * last column after using "$". */
- endcolumn = (curwin->w_curswant == MAXCOL);
- }
-
- // Recognize ":%s/\n//" and turn it into a join command, which is much
- // more efficient.
- // TODO: find a generic solution to make line-joining operations more
- // efficient, avoid allocating a string that grows in size.
- if (pat != NULL
- && strcmp((const char *)pat, "\\n") == 0
- && *sub == NUL
- && (*cmd == NUL || (cmd[1] == NUL
- && (*cmd == 'g'
- || *cmd == 'l'
- || *cmd == 'p'
- || *cmd == '#')))) {
- curwin->w_cursor.lnum = eap->line1;
- if (*cmd == 'l') {
- eap->flags = EXFLAG_LIST;
- } else if (*cmd == '#') {
- eap->flags = EXFLAG_NR;
- } else if (*cmd == 'p') {
- eap->flags = EXFLAG_PRINT;
- }
-
- do_join(eap->line2 - eap->line1 + 1, FALSE, TRUE, FALSE);
- sub_nlines = sub_nsubs = eap->line2 - eap->line1 + 1;
- do_sub_msg(FALSE);
- ex_may_print(eap);
-
- return;
- }
-
- /*
- * Find trailing options. When '&' is used, keep old options.
- */
- if (*cmd == '&')
- ++cmd;
- else {
- if (!p_ed) {
- if (p_gd) /* default is global on */
- do_all = TRUE;
- else
- do_all = FALSE;
- do_ask = FALSE;
- }
- do_error = TRUE;
- do_print = FALSE;
- do_count = FALSE;
- do_number = FALSE;
- do_ic = 0;
- }
- while (*cmd) {
- /*
- * Note that 'g' and 'c' are always inverted, also when p_ed is off.
- * 'r' is never inverted.
- */
- if (*cmd == 'g')
- do_all = !do_all;
- else if (*cmd == 'c')
- do_ask = !do_ask;
- else if (*cmd == 'n')
- do_count = TRUE;
- else if (*cmd == 'e')
- do_error = !do_error;
- else if (*cmd == 'r') /* use last used regexp */
- which_pat = RE_LAST;
- else if (*cmd == 'p')
- do_print = TRUE;
- else if (*cmd == '#') {
- do_print = TRUE;
- do_number = TRUE;
- } else if (*cmd == 'l') {
- do_print = TRUE;
- do_list = TRUE;
- } else if (*cmd == 'i') /* ignore case */
- do_ic = 'i';
- else if (*cmd == 'I') /* don't ignore case */
- do_ic = 'I';
- else
- break;
- ++cmd;
- }
- if (do_count)
- do_ask = FALSE;
-
- /*
- * check for a trailing count
- */
- cmd = skipwhite(cmd);
- if (VIM_ISDIGIT(*cmd)) {
- i = getdigits(&cmd);
- if (i <= 0 && !eap->skip && do_error) {
- EMSG(_(e_zerocount));
- return;
- }
- eap->line1 = eap->line2;
- eap->line2 += i - 1;
- if (eap->line2 > curbuf->b_ml.ml_line_count)
- eap->line2 = curbuf->b_ml.ml_line_count;
- }
-
- /*
- * check for trailing command or garbage
- */
- cmd = skipwhite(cmd);
- if (*cmd && *cmd != '"') { /* if not end-of-line or comment */
- eap->nextcmd = check_nextcmd(cmd);
- if (eap->nextcmd == NULL) {
- EMSG(_(e_trailing));
- return;
- }
- }
-
- if (eap->skip) /* not executing commands, only parsing */
- return;
-
- if (!do_count && !curbuf->b_p_ma) {
- /* Substitution is not allowed in non-'modifiable' buffer */
- EMSG(_(e_modifiable));
- return;
- }
-
- if (search_regcomp(pat, RE_SUBST, which_pat, SEARCH_HIS,
- &regmatch) == FAIL) {
- if (do_error)
- EMSG(_(e_invcmd));
- return;
- }
-
- /* the 'i' or 'I' flag overrules 'ignorecase' and 'smartcase' */
- if (do_ic == 'i')
- regmatch.rmm_ic = TRUE;
- else if (do_ic == 'I')
- regmatch.rmm_ic = FALSE;
-
- sub_firstline = NULL;
-
- /*
- * ~ in the substitute pattern is replaced with the old pattern.
- * We do it here once to avoid it to be replaced over and over again.
- * But don't do it when it starts with "\=", then it's an expression.
- */
- if (!(sub[0] == '\\' && sub[1] == '='))
- sub = regtilde(sub, p_magic);
-
- /*
- * Check for a match on each line.
- */
- line2 = eap->line2;
- for (lnum = eap->line1; lnum <= line2 && !(got_quit
- || aborting()
- ); ++lnum) {
- nmatch = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
- (colnr_T)0, NULL);
- if (nmatch) {
- colnr_T copycol;
- colnr_T matchcol;
- colnr_T prev_matchcol = MAXCOL;
- char_u *new_end, *new_start = NULL;
- unsigned new_start_len = 0;
- char_u *p1;
- int did_sub = FALSE;
- int lastone;
- int len, copy_len, needed_len;
- long nmatch_tl = 0; /* nr of lines matched below lnum */
- int do_again; /* do it again after joining lines */
- int skip_match = FALSE;
- linenr_T sub_firstlnum; /* nr of first sub line */
-
- /*
- * The new text is build up step by step, to avoid too much
- * copying. There are these pieces:
- * sub_firstline The old text, unmodified.
- * copycol Column in the old text where we started
- * looking for a match; from here old text still
- * needs to be copied to the new text.
- * matchcol Column number of the old text where to look
- * for the next match. It's just after the
- * previous match or one further.
- * prev_matchcol Column just after the previous match (if any).
- * Mostly equal to matchcol, except for the first
- * match and after skipping an empty match.
- * regmatch.*pos Where the pattern matched in the old text.
- * new_start The new text, all that has been produced so
- * far.
- * new_end The new text, where to append new text.
- *
- * lnum The line number where we found the start of
- * the match. Can be below the line we searched
- * when there is a \n before a \zs in the
- * pattern.
- * sub_firstlnum The line number in the buffer where to look
- * for a match. Can be different from "lnum"
- * when the pattern or substitute string contains
- * line breaks.
- *
- * Special situations:
- * - When the substitute string contains a line break, the part up
- * to the line break is inserted in the text, but the copy of
- * the original line is kept. "sub_firstlnum" is adjusted for
- * the inserted lines.
- * - When the matched pattern contains a line break, the old line
- * is taken from the line at the end of the pattern. The lines
- * in the match are deleted later, "sub_firstlnum" is adjusted
- * accordingly.
- *
- * The new text is built up in new_start[]. It has some extra
- * room to avoid using xmalloc()/free() too often. new_start_len is
- * the length of the allocated memory at new_start.
- *
- * Make a copy of the old line, so it won't be taken away when
- * updating the screen or handling a multi-line match. The "old_"
- * pointers point into this copy.
- */
- sub_firstlnum = lnum;
- copycol = 0;
- matchcol = 0;
-
- /* At first match, remember current cursor position. */
- if (!got_match) {
- setpcmark();
- got_match = TRUE;
- }
-
- /*
- * Loop until nothing more to replace in this line.
- * 1. Handle match with empty string.
- * 2. If do_ask is set, ask for confirmation.
- * 3. substitute the string.
- * 4. if do_all is set, find next match
- * 5. break if there isn't another match in this line
- */
- for (;; ) {
- /* Advance "lnum" to the line where the match starts. The
- * match does not start in the first line when there is a line
- * break before \zs. */
- if (regmatch.startpos[0].lnum > 0) {
- lnum += regmatch.startpos[0].lnum;
- sub_firstlnum += regmatch.startpos[0].lnum;
- nmatch -= regmatch.startpos[0].lnum;
- free(sub_firstline);
- sub_firstline = NULL;
- }
-
- if (sub_firstline == NULL) {
- sub_firstline = vim_strsave(ml_get(sub_firstlnum));
- }
-
- /* Save the line number of the last change for the final
- * cursor position (just like Vi). */
- curwin->w_cursor.lnum = lnum;
- do_again = FALSE;
-
- /*
- * 1. Match empty string does not count, except for first
- * match. This reproduces the strange vi behaviour.
- * This also catches endless loops.
- */
- if (matchcol == prev_matchcol
- && regmatch.endpos[0].lnum == 0
- && matchcol == regmatch.endpos[0].col) {
- if (sub_firstline[matchcol] == NUL)
- /* We already were at the end of the line. Don't look
- * for a match in this line again. */
- skip_match = TRUE;
- else {
- /* search for a match at next column */
- if (has_mbyte)
- matchcol += mb_ptr2len(sub_firstline + matchcol);
- else
- ++matchcol;
- }
- goto skip;
- }
-
- /* Normally we continue searching for a match just after the
- * previous match. */
- matchcol = regmatch.endpos[0].col;
- prev_matchcol = matchcol;
-
- /*
- * 2. If do_count is set only increase the counter.
- * If do_ask is set, ask for confirmation.
- */
- if (do_count) {
- /* For a multi-line match, put matchcol at the NUL at
- * the end of the line and set nmatch to one, so that
- * we continue looking for a match on the next line.
- * Avoids that ":s/\nB\@=//gc" get stuck. */
- if (nmatch > 1) {
- matchcol = (colnr_T)STRLEN(sub_firstline);
- nmatch = 1;
- skip_match = TRUE;
- }
- sub_nsubs++;
- did_sub = TRUE;
- /* Skip the substitution, unless an expression is used,
- * then it is evaluated in the sandbox. */
- if (!(sub[0] == '\\' && sub[1] == '='))
- goto skip;
- }
-
- if (do_ask) {
- int typed = 0;
-
- /* change State to CONFIRM, so that the mouse works
- * properly */
- save_State = State;
- State = CONFIRM;
- setmouse(); /* disable mouse in xterm */
- curwin->w_cursor.col = regmatch.startpos[0].col;
-
- /* When 'cpoptions' contains "u" don't sync undo when
- * asking for confirmation. */
- if (vim_strchr(p_cpo, CPO_UNDO) != NULL)
- ++no_u_sync;
-
- /*
- * Loop until 'y', 'n', 'q', CTRL-E or CTRL-Y typed.
- */
- while (do_ask) {
- if (exmode_active) {
- char_u *resp;
- colnr_T sc, ec;
-
- print_line_no_prefix(lnum, do_number, do_list);
-
- getvcol(curwin, &curwin->w_cursor, &sc, NULL, NULL);
- curwin->w_cursor.col = regmatch.endpos[0].col - 1;
- getvcol(curwin, &curwin->w_cursor, NULL, NULL, &ec);
- if (do_number || curwin->w_p_nu) {
- int numw = number_width(curwin) + 1;
- sc += numw;
- ec += numw;
- }
- msg_start();
- for (i = 0; i < (long)sc; ++i)
- msg_putchar(' ');
- for (; i <= (long)ec; ++i)
- msg_putchar('^');
-
- resp = getexmodeline('?', NULL, 0);
- if (resp != NULL) {
- typed = *resp;
- free(resp);
- }
- } else {
- char_u *orig_line = NULL;
- int len_change = 0;
- int save_p_fen = curwin->w_p_fen;
-
- curwin->w_p_fen = FALSE;
- /* Invert the matched string.
- * Remove the inversion afterwards. */
- temp = RedrawingDisabled;
- RedrawingDisabled = 0;
-
- if (new_start != NULL) {
- /* There already was a substitution, we would
- * like to show this to the user. We cannot
- * really update the line, it would change
- * what matches. Temporarily replace the line
- * and change it back afterwards. */
- orig_line = vim_strsave(ml_get(lnum));
- if (orig_line != NULL) {
- char_u *new_line = concat_str(new_start,
- sub_firstline + copycol);
-
- // Position the cursor relative to the end of the line, the
- // previous substitute may have inserted or deleted characters
- // before the cursor.
- len_change = (int)STRLEN(new_line) - (int)STRLEN(orig_line);
- curwin->w_cursor.col += len_change;
- ml_replace(lnum, new_line, FALSE);
- }
- }
-
- search_match_lines = regmatch.endpos[0].lnum
- - regmatch.startpos[0].lnum;
- search_match_endcol = regmatch.endpos[0].col
- + len_change;
- highlight_match = TRUE;
-
- update_topline();
- validate_cursor();
- update_screen(SOME_VALID);
- highlight_match = FALSE;
- redraw_later(SOME_VALID);
-
- curwin->w_p_fen = save_p_fen;
- if (msg_row == Rows - 1)
- msg_didout = FALSE; /* avoid a scroll-up */
- msg_starthere();
- i = msg_scroll;
- msg_scroll = 0; /* truncate msg when
- needed */
- msg_no_more = TRUE;
- /* write message same highlighting as for
- * wait_return */
- smsg_attr(hl_attr(HLF_R),
- (char_u *)_("replace with %s (y/n/a/q/l/^E/^Y)?"), sub);
- msg_no_more = FALSE;
- msg_scroll = i;
- showruler(TRUE);
- windgoto(msg_row, msg_col);
- RedrawingDisabled = temp;
-
-#ifdef USE_ON_FLY_SCROLL
- dont_scroll = FALSE; /* allow scrolling here */
-#endif
- ++no_mapping; /* don't map this key */
- ++allow_keys; /* allow special keys */
- typed = plain_vgetc();
- --allow_keys;
- --no_mapping;
-
- /* clear the question */
- msg_didout = FALSE; /* don't scroll up */
- msg_col = 0;
- gotocmdline(TRUE);
-
- /* restore the line */
- if (orig_line != NULL)
- ml_replace(lnum, orig_line, FALSE);
- }
-
- need_wait_return = FALSE; /* no hit-return prompt */
- if (typed == 'q' || typed == ESC || typed == Ctrl_C
-#ifdef UNIX
- || typed == intr_char
-#endif
- ) {
- got_quit = TRUE;
- break;
- }
- if (typed == 'n')
- break;
- if (typed == 'y')
- break;
- if (typed == 'l') {
- /* last: replace and then stop */
- do_all = FALSE;
- line2 = lnum;
- break;
- }
- if (typed == 'a') {
- do_ask = FALSE;
- break;
- }
- if (typed == Ctrl_E)
- scrollup_clamp();
- else if (typed == Ctrl_Y)
- scrolldown_clamp();
- }
- State = save_State;
- setmouse();
- if (vim_strchr(p_cpo, CPO_UNDO) != NULL)
- --no_u_sync;
-
- if (typed == 'n') {
- /* For a multi-line match, put matchcol at the NUL at
- * the end of the line and set nmatch to one, so that
- * we continue looking for a match on the next line.
- * Avoids that ":%s/\nB\@=//gc" and ":%s/\n/,\r/gc"
- * get stuck when pressing 'n'. */
- if (nmatch > 1) {
- matchcol = (colnr_T)STRLEN(sub_firstline);
- skip_match = TRUE;
- }
- goto skip;
- }
- if (got_quit)
- goto skip;
- }
-
- /* Move the cursor to the start of the match, so that we can
- * use "\=col("."). */
- curwin->w_cursor.col = regmatch.startpos[0].col;
-
- /*
- * 3. substitute the string.
- */
- if (do_count) {
- /* prevent accidentally changing the buffer by a function */
- save_ma = curbuf->b_p_ma;
- curbuf->b_p_ma = FALSE;
- sandbox++;
- }
- /* get length of substitution part */
- sublen = vim_regsub_multi(&regmatch,
- sub_firstlnum - regmatch.startpos[0].lnum,
- sub, sub_firstline, FALSE, p_magic, TRUE);
- if (do_count) {
- curbuf->b_p_ma = save_ma;
- sandbox--;
- goto skip;
- }
-
- /* When the match included the "$" of the last line it may
- * go beyond the last line of the buffer. */
- if (nmatch > curbuf->b_ml.ml_line_count - sub_firstlnum + 1) {
- nmatch = curbuf->b_ml.ml_line_count - sub_firstlnum + 1;
- skip_match = TRUE;
- }
-
- /* Need room for:
- * - result so far in new_start (not for first sub in line)
- * - original text up to match
- * - length of substituted part
- * - original text after match
- */
- if (nmatch == 1)
- p1 = sub_firstline;
- else {
- p1 = ml_get(sub_firstlnum + nmatch - 1);
- nmatch_tl += nmatch - 1;
- }
- copy_len = regmatch.startpos[0].col - copycol;
- needed_len = copy_len + ((unsigned)STRLEN(p1)
- - regmatch.endpos[0].col) + sublen + 1;
- if (new_start == NULL) {
- /*
- * Get some space for a temporary buffer to do the
- * substitution into (and some extra space to avoid
- * too many calls to xmalloc()/free()).
- */
- new_start_len = needed_len + 50;
- new_start = xmalloc(new_start_len);
- *new_start = NUL;
- new_end = new_start;
- } else {
- /*
- * Check if the temporary buffer is long enough to do the
- * substitution into. If not, make it larger (with a bit
- * extra to avoid too many calls to xmalloc()/free()).
- */
- len = (unsigned)STRLEN(new_start);
- needed_len += len;
- if (needed_len > (int)new_start_len) {
- new_start_len = needed_len + 50;
- new_start = xrealloc(new_start, new_start_len);
- }
- new_end = new_start + len;
- }
-
- /*
- * copy the text up to the part that matched
- */
- memmove(new_end, sub_firstline + copycol, (size_t)copy_len);
- new_end += copy_len;
-
- (void)vim_regsub_multi(&regmatch,
- sub_firstlnum - regmatch.startpos[0].lnum,
- sub, new_end, TRUE, p_magic, TRUE);
- sub_nsubs++;
- did_sub = TRUE;
-
- /* Move the cursor to the start of the line, to avoid that it
- * is beyond the end of the line after the substitution. */
- curwin->w_cursor.col = 0;
-
- /* For a multi-line match, make a copy of the last matched
- * line and continue in that one. */
- if (nmatch > 1) {
- sub_firstlnum += nmatch - 1;
- free(sub_firstline);
- sub_firstline = vim_strsave(ml_get(sub_firstlnum));
- /* When going beyond the last line, stop substituting. */
- if (sub_firstlnum <= line2)
- do_again = TRUE;
- else
- do_all = FALSE;
- }
-
- /* Remember next character to be copied. */
- copycol = regmatch.endpos[0].col;
-
- if (skip_match) {
- /* Already hit end of the buffer, sub_firstlnum is one
- * less than what it ought to be. */
- free(sub_firstline);
- sub_firstline = vim_strsave((char_u *)"");
- copycol = 0;
- }
-
- /*
- * Now the trick is to replace CTRL-M chars with a real line
- * break. This would make it impossible to insert a CTRL-M in
- * the text. The line break can be avoided by preceding the
- * CTRL-M with a backslash. To be able to insert a backslash,
- * they must be doubled in the string and are halved here.
- * That is Vi compatible.
- */
- for (p1 = new_end; *p1; ++p1) {
- if (p1[0] == '\\' && p1[1] != NUL) /* remove backslash */
- STRMOVE(p1, p1 + 1);
- else if (*p1 == CAR) {
- if (u_inssub(lnum) == OK) { /* prepare for undo */
- *p1 = NUL; /* truncate up to the CR */
- ml_append(lnum - 1, new_start,
- (colnr_T)(p1 - new_start + 1), FALSE);
- mark_adjust(lnum + 1, (linenr_T)MAXLNUM, 1L, 0L);
- if (do_ask)
- appended_lines(lnum - 1, 1L);
- else {
- if (first_line == 0)
- first_line = lnum;
- last_line = lnum + 1;
- }
- /* All line numbers increase. */
- ++sub_firstlnum;
- ++lnum;
- ++line2;
- /* move the cursor to the new line, like Vi */
- ++curwin->w_cursor.lnum;
- /* copy the rest */
- STRMOVE(new_start, p1 + 1);
- p1 = new_start - 1;
- }
- } else if (has_mbyte)
- p1 += (*mb_ptr2len)(p1) - 1;
- }
-
- /*
- * 4. If do_all is set, find next match.
- * Prevent endless loop with patterns that match empty
- * strings, e.g. :s/$/pat/g or :s/[a-z]* /(&)/g.
- * But ":s/\n/#/" is OK.
- */
-skip:
- /* We already know that we did the last subst when we are at
- * the end of the line, except that a pattern like
- * "bar\|\nfoo" may match at the NUL. "lnum" can be below
- * "line2" when there is a \zs in the pattern after a line
- * break. */
- lastone = (skip_match
- || got_int
- || got_quit
- || lnum > line2
- || !(do_all || do_again)
- || (sub_firstline[matchcol] == NUL && nmatch <= 1
- && !re_multiline(regmatch.regprog)));
- nmatch = -1;
-
- /*
- * Replace the line in the buffer when needed. This is
- * skipped when there are more matches.
- * The check for nmatch_tl is needed for when multi-line
- * matching must replace the lines before trying to do another
- * match, otherwise "\@<=" won't work.
- * When the match starts below where we start searching also
- * need to replace the line first (using \zs after \n).
- */
- if (lastone
- || nmatch_tl > 0
- || (nmatch = vim_regexec_multi(&regmatch, curwin,
- curbuf, sub_firstlnum,
- matchcol, NULL)) == 0
- || regmatch.startpos[0].lnum > 0) {
- if (new_start != NULL) {
- /*
- * Copy the rest of the line, that didn't match.
- * "matchcol" has to be adjusted, we use the end of
- * the line as reference, because the substitute may
- * have changed the number of characters. Same for
- * "prev_matchcol".
- */
- STRCAT(new_start, sub_firstline + copycol);
- matchcol = (colnr_T)STRLEN(sub_firstline) - matchcol;
- prev_matchcol = (colnr_T)STRLEN(sub_firstline)
- - prev_matchcol;
-
- if (u_savesub(lnum) != OK)
- break;
- ml_replace(lnum, new_start, TRUE);
-
- if (nmatch_tl > 0) {
- /*
- * Matched lines have now been substituted and are
- * useless, delete them. The part after the match
- * has been appended to new_start, we don't need
- * it in the buffer.
- */
- ++lnum;
- if (u_savedel(lnum, nmatch_tl) != OK)
- break;
- for (i = 0; i < nmatch_tl; ++i)
- ml_delete(lnum, (int)FALSE);
- mark_adjust(lnum, lnum + nmatch_tl - 1,
- (long)MAXLNUM, -nmatch_tl);
- if (do_ask)
- deleted_lines(lnum, nmatch_tl);
- --lnum;
- line2 -= nmatch_tl; /* nr of lines decreases */
- nmatch_tl = 0;
- }
-
- /* When asking, undo is saved each time, must also set
- * changed flag each time. */
- if (do_ask)
- changed_bytes(lnum, 0);
- else {
- if (first_line == 0)
- first_line = lnum;
- last_line = lnum + 1;
- }
-
- sub_firstlnum = lnum;
- free(sub_firstline); /* free the temp buffer */
- sub_firstline = new_start;
- new_start = NULL;
- matchcol = (colnr_T)STRLEN(sub_firstline) - matchcol;
- prev_matchcol = (colnr_T)STRLEN(sub_firstline)
- - prev_matchcol;
- copycol = 0;
- }
- if (nmatch == -1 && !lastone)
- nmatch = vim_regexec_multi(&regmatch, curwin, curbuf,
- sub_firstlnum, matchcol, NULL);
-
- /*
- * 5. break if there isn't another match in this line
- */
- if (nmatch <= 0) {
- /* If the match found didn't start where we were
- * searching, do the next search in the line where we
- * found the match. */
- if (nmatch == -1)
- lnum -= regmatch.startpos[0].lnum;
- break;
- }
- }
-
- line_breakcheck();
- }
-
- if (did_sub)
- ++sub_nlines;
- free(new_start); /* for when substitute was cancelled */
- free(sub_firstline); /* free the copy of the original line */
- sub_firstline = NULL;
- }
-
- line_breakcheck();
- }
-
- if (first_line != 0) {
- /* Need to subtract the number of added lines from "last_line" to get
- * the line number before the change (same as adding the number of
- * deleted lines). */
- i = curbuf->b_ml.ml_line_count - old_line_count;
- changed_lines(first_line, 0, last_line - i, i);
- }
-
- free(sub_firstline); /* may have to free allocated copy of the line */
-
- /* ":s/pat//n" doesn't move the cursor */
- if (do_count)
- curwin->w_cursor = old_cursor;
-
- if (sub_nsubs > start_nsubs) {
- /* Set the '[ and '] marks. */
- curbuf->b_op_start.lnum = eap->line1;
- curbuf->b_op_end.lnum = line2;
- curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
-
- if (!global_busy) {
- if (!do_ask) { /* when interactive leave cursor on the match */
- if (endcolumn)
- coladvance((colnr_T)MAXCOL);
- else
- beginline(BL_WHITE | BL_FIX);
- }
- if (!do_sub_msg(do_count) && do_ask)
- MSG("");
- } else
- global_need_beginline = TRUE;
- if (do_print)
- print_line(curwin->w_cursor.lnum, do_number, do_list);
- } else if (!global_busy) {
- if (got_int) /* interrupted */
- EMSG(_(e_interr));
- else if (got_match) /* did find something but nothing substituted */
- MSG("");
- else if (do_error) /* nothing found */
- EMSG2(_(e_patnotf2), get_search_pat());
- }
-
- if (do_ask && hasAnyFolding(curwin))
- /* Cursor position may require updating */
- changed_window_setting();
-
- vim_regfree(regmatch.regprog);
-}
-
-/*
- * Give message for number of substitutions.
- * Can also be used after a ":global" command.
- * Return TRUE if a message was given.
- */
-int
-do_sub_msg (
- int count_only /* used 'n' flag for ":s" */
-)
-{
- /*
- * Only report substitutions when:
- * - more than 'report' substitutions
- * - command was typed by user, or number of changed lines > 'report'
- * - giving messages is not disabled by 'lazyredraw'
- */
- if (((sub_nsubs > p_report && (KeyTyped || sub_nlines > 1 || p_report < 1))
- || count_only)
- && messaging()) {
- if (got_int)
- STRCPY(msg_buf, _("(Interrupted) "));
- else
- *msg_buf = NUL;
- if (sub_nsubs == 1)
- vim_snprintf_add((char *)msg_buf, sizeof(msg_buf),
- "%s", count_only ? _("1 match") : _("1 substitution"));
- else
- vim_snprintf_add((char *)msg_buf, sizeof(msg_buf),
- count_only ? _("%" PRId64 " matches")
- : _("%" PRId64 " substitutions"),
- (int64_t)sub_nsubs);
- if (sub_nlines == 1)
- vim_snprintf_add((char *)msg_buf, sizeof(msg_buf),
- "%s", _(" on 1 line"));
- else
- vim_snprintf_add((char *)msg_buf, sizeof(msg_buf),
- _(" on %" PRId64 " lines"), (int64_t)sub_nlines);
- if (msg(msg_buf))
- /* save message to display it after redraw */
- set_keep_msg(msg_buf, 0);
- return TRUE;
- }
- if (got_int) {
- EMSG(_(e_interr));
- return TRUE;
- }
- return FALSE;
-}
-
-/*
- * Execute a global command of the form:
- *
- * g/pattern/X : execute X on all lines where pattern matches
- * v/pattern/X : execute X on all lines where pattern does not match
- *
- * where 'X' is an EX command
- *
- * The command character (as well as the trailing slash) is optional, and
- * is assumed to be 'p' if missing.
- *
- * This is implemented in two passes: first we scan the file for the pattern and
- * set a mark for each line that (not) matches. Secondly we execute the command
- * for each line that has a mark. This is required because after deleting
- * lines we do not know where to search for the next match.
- */
-void ex_global(exarg_T *eap)
-{
- linenr_T lnum; /* line number according to old situation */
- int ndone = 0;
- int type; /* first char of cmd: 'v' or 'g' */
- char_u *cmd; /* command argument */
-
- char_u delim; /* delimiter, normally '/' */
- char_u *pat;
- regmmatch_T regmatch;
- int match;
- int which_pat;
-
- if (global_busy) {
- EMSG(_("E147: Cannot do :global recursive")); /* will increment global_busy */
- return;
- }
-
- if (eap->forceit) /* ":global!" is like ":vglobal" */
- type = 'v';
- else
- type = *eap->cmd;
- cmd = eap->arg;
- which_pat = RE_LAST; /* default: use last used regexp */
-
- /*
- * undocumented vi feature:
- * "\/" and "\?": use previous search pattern.
- * "\&": use previous substitute pattern.
- */
- if (*cmd == '\\') {
- ++cmd;
- if (vim_strchr((char_u *)"/?&", *cmd) == NULL) {
- EMSG(_(e_backslash));
- return;
- }
- if (*cmd == '&')
- which_pat = RE_SUBST; /* use previous substitute pattern */
- else
- which_pat = RE_SEARCH; /* use previous search pattern */
- ++cmd;
- pat = (char_u *)"";
- } else if (*cmd == NUL) {
- EMSG(_("E148: Regular expression missing from global"));
- return;
- } else {
- delim = *cmd; /* get the delimiter */
- if (delim)
- ++cmd; /* skip delimiter if there is one */
- pat = cmd; /* remember start of pattern */
- cmd = skip_regexp(cmd, delim, p_magic, &eap->arg);
- if (cmd[0] == delim) /* end delimiter found */
- *cmd++ = NUL; /* replace it with a NUL */
- }
-
- if (p_altkeymap && curwin->w_p_rl)
- lrFswap(pat,0);
-
- if (search_regcomp(pat, RE_BOTH, which_pat, SEARCH_HIS, &regmatch) == FAIL) {
- EMSG(_(e_invcmd));
- return;
- }
-
- /*
- * pass 1: set marks for each (not) matching line
- */
- for (lnum = eap->line1; lnum <= eap->line2 && !got_int; ++lnum) {
- /* a match on this line? */
- match = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
- (colnr_T)0, NULL);
- if ((type == 'g' && match) || (type == 'v' && !match)) {
- ml_setmarked(lnum);
- ndone++;
- }
- line_breakcheck();
- }
-
- /*
- * pass 2: execute the command for each line that has been marked
- */
- if (got_int)
- MSG(_(e_interr));
- else if (ndone == 0) {
- if (type == 'v')
- smsg((char_u *)_("Pattern found in every line: %s"), pat);
- else
- smsg((char_u *)_("Pattern not found: %s"), pat);
- } else
- global_exe(cmd);
-
- ml_clearmarked(); /* clear rest of the marks */
- vim_regfree(regmatch.regprog);
-}
-
-/*
- * Execute "cmd" on lines marked with ml_setmarked().
- */
-void global_exe(char_u *cmd)
-{
- linenr_T old_lcount; /* b_ml.ml_line_count before the command */
- buf_T *old_buf = curbuf; /* remember what buffer we started in */
- linenr_T lnum; /* line number according to old situation */
-
- /*
- * Set current position only once for a global command.
- * If global_busy is set, setpcmark() will not do anything.
- * If there is an error, global_busy will be incremented.
- */
- setpcmark();
-
- /* When the command writes a message, don't overwrite the command. */
- msg_didout = TRUE;
-
- sub_nsubs = 0;
- sub_nlines = 0;
- global_need_beginline = FALSE;
- global_busy = 1;
- old_lcount = curbuf->b_ml.ml_line_count;
- while (!got_int && (lnum = ml_firstmarked()) != 0 && global_busy == 1) {
- curwin->w_cursor.lnum = lnum;
- curwin->w_cursor.col = 0;
- if (*cmd == NUL || *cmd == '\n')
- do_cmdline((char_u *)"p", NULL, NULL, DOCMD_NOWAIT);
- else
- do_cmdline(cmd, NULL, NULL, DOCMD_NOWAIT);
- ui_breakcheck();
- }
-
- global_busy = 0;
- if (global_need_beginline)
- beginline(BL_WHITE | BL_FIX);
- else
- check_cursor(); /* cursor may be beyond the end of the line */
-
- /* the cursor may not have moved in the text but a change in a previous
- * line may move it on the screen */
- changed_line_abv_curs();
-
- /* If it looks like no message was written, allow overwriting the
- * command with the report for number of changes. */
- if (msg_col == 0 && msg_scrolled == 0)
- msg_didout = FALSE;
-
- /* If substitutes done, report number of substitutes, otherwise report
- * number of extra or deleted lines.
- * Don't report extra or deleted lines in the edge case where the buffer
- * we are in after execution is different from the buffer we started in. */
- if (!do_sub_msg(FALSE) && curbuf == old_buf)
- msgmore(curbuf->b_ml.ml_line_count - old_lcount);
-}
-
-int read_viminfo_sub_string(vir_T *virp, int force)
-{
- if (force)
- free(old_sub);
- if (force || old_sub == NULL)
- old_sub = viminfo_readstring(virp, 1, TRUE);
- return viminfo_readline(virp);
-}
-
-void write_viminfo_sub_string(FILE *fp)
-{
- if (get_viminfo_parameter('/') != 0 && old_sub != NULL) {
- fputs(_("\n# Last Substitute String:\n$"), fp);
- viminfo_writestring(fp, old_sub);
- }
-}
-
-#if defined(EXITFREE) || defined(PROTO)
-void free_old_sub(void)
-{
- free(old_sub);
-}
-
-#endif
-
-/*
- * Set up for a tagpreview.
- * Return TRUE when it was created.
- */
-int
-prepare_tagpreview (
- int undo_sync /* sync undo when leaving the window */
-)
-{
- win_T *wp;
-
-
- /*
- * If there is already a preview window open, use that one.
- */
- if (!curwin->w_p_pvw) {
- for (wp = firstwin; wp != NULL; wp = wp->w_next)
- if (wp->w_p_pvw)
- break;
- if (wp != NULL)
- win_enter(wp, undo_sync);
- else {
- /*
- * There is no preview window open yet. Create one.
- */
- if (win_split(g_do_tagpreview > 0 ? g_do_tagpreview : 0, 0)
- == FAIL)
- return FALSE;
- curwin->w_p_pvw = TRUE;
- curwin->w_p_wfh = TRUE;
- RESET_BINDING(curwin); /* don't take over 'scrollbind'
- and 'cursorbind' */
- curwin->w_p_diff = FALSE; /* no 'diff' */
- curwin->w_p_fdc = 0; /* no 'foldcolumn' */
- return TRUE;
- }
- }
- return FALSE;
-}
-
-
-
-/*
- * ":help": open a read-only window on a help file
- */
-void ex_help(exarg_T *eap)
-{
- char_u *arg;
- char_u *tag;
- FILE *helpfd; /* file descriptor of help file */
- int n;
- int i;
- win_T *wp;
- int num_matches;
- char_u **matches;
- char_u *p;
- int empty_fnum = 0;
- int alt_fnum = 0;
- buf_T *buf;
- int len;
- char_u *lang;
- int old_KeyTyped = KeyTyped;
-
- if (eap != NULL) {
- /*
- * A ":help" command ends at the first LF, or at a '|' that is
- * followed by some text. Set nextcmd to the following command.
- */
- for (arg = eap->arg; *arg; ++arg) {
- if (*arg == '\n' || *arg == '\r'
- || (*arg == '|' && arg[1] != NUL && arg[1] != '|')) {
- *arg++ = NUL;
- eap->nextcmd = arg;
- break;
- }
- }
- arg = eap->arg;
-
- if (eap->forceit && *arg == NUL && !curbuf->b_help) {
- EMSG(_("E478: Don't panic!"));
- return;
- }
-
- if (eap->skip) /* not executing commands */
- return;
- } else
- arg = (char_u *)"";
-
- /* remove trailing blanks */
- p = arg + STRLEN(arg) - 1;
- while (p > arg && vim_iswhite(*p) && p[-1] != '\\')
- *p-- = NUL;
-
- /* Check for a specified language */
- lang = check_help_lang(arg);
-
- /* When no argument given go to the index. */
- if (*arg == NUL)
- arg = (char_u *)"help.txt";
-
- /*
- * Check if there is a match for the argument.
- */
- n = find_help_tags(arg, &num_matches, &matches,
- eap != NULL && eap->forceit);
-
- i = 0;
- if (n != FAIL && lang != NULL)
- /* Find first item with the requested language. */
- for (i = 0; i < num_matches; ++i) {
- len = (int)STRLEN(matches[i]);
- if (len > 3 && matches[i][len - 3] == '@'
- && STRICMP(matches[i] + len - 2, lang) == 0)
- break;
- }
- if (i >= num_matches || n == FAIL) {
- if (lang != NULL)
- EMSG3(_("E661: Sorry, no '%s' help for %s"), lang, arg);
- else
- EMSG2(_("E149: Sorry, no help for %s"), arg);
- if (n != FAIL)
- FreeWild(num_matches, matches);
- return;
- }
-
- /* The first match (in the requested language) is the best match. */
- tag = vim_strsave(matches[i]);
- FreeWild(num_matches, matches);
-
-
- /*
- * Re-use an existing help window or open a new one.
- * Always open a new one for ":tab help".
- */
- if (!curwin->w_buffer->b_help
- || cmdmod.tab != 0
- ) {
- if (cmdmod.tab != 0)
- wp = NULL;
- else
- for (wp = firstwin; wp != NULL; wp = wp->w_next)
- if (wp->w_buffer != NULL && wp->w_buffer->b_help)
- break;
- if (wp != NULL && wp->w_buffer->b_nwindows > 0)
- win_enter(wp, TRUE);
- else {
- /*
- * There is no help window yet.
- * Try to open the file specified by the "helpfile" option.
- */
- if ((helpfd = mch_fopen((char *)p_hf, READBIN)) == NULL) {
- smsg((char_u *)_("Sorry, help file \"%s\" not found"), p_hf);
- goto erret;
- }
- fclose(helpfd);
-
- /* Split off help window; put it at far top if no position
- * specified, the current window is vertically split and
- * narrow. */
- n = WSP_HELP;
- if (cmdmod.split == 0 && curwin->w_width != Columns
- && curwin->w_width < 80)
- n |= WSP_TOP;
- if (win_split(0, n) == FAIL)
- goto erret;
-
- if (curwin->w_height < p_hh)
- win_setheight((int)p_hh);
-
- /*
- * Open help file (do_ecmd() will set b_help flag, readfile() will
- * set b_p_ro flag).
- * Set the alternate file to the previously edited file.
- */
- alt_fnum = curbuf->b_fnum;
- (void)do_ecmd(0, NULL, NULL, NULL, ECMD_LASTL,
- ECMD_HIDE + ECMD_SET_HELP,
- NULL /* buffer is still open, don't store info */
- );
- if (!cmdmod.keepalt)
- curwin->w_alt_fnum = alt_fnum;
- empty_fnum = curbuf->b_fnum;
- }
- }
-
- if (!p_im)
- restart_edit = 0; /* don't want insert mode in help file */
-
- /* Restore KeyTyped, setting 'filetype=help' may reset it.
- * It is needed for do_tag top open folds under the cursor. */
- KeyTyped = old_KeyTyped;
-
- if (tag != NULL)
- do_tag(tag, DT_HELP, 1, FALSE, TRUE);
-
- /* Delete the empty buffer if we're not using it. Careful: autocommands
- * may have jumped to another window, check that the buffer is not in a
- * window. */
- if (empty_fnum != 0 && curbuf->b_fnum != empty_fnum) {
- buf = buflist_findnr(empty_fnum);
- if (buf != NULL && buf->b_nwindows == 0)
- wipe_buffer(buf, TRUE);
- }
-
- /* keep the previous alternate file */
- if (alt_fnum != 0 && curwin->w_alt_fnum == empty_fnum && !cmdmod.keepalt)
- curwin->w_alt_fnum = alt_fnum;
-
-erret:
- free(tag);
-}
-
-
-/*
- * In an argument search for a language specifiers in the form "@xx".
- * Changes the "@" to NUL if found, and returns a pointer to "xx".
- * Returns NULL if not found.
- */
-char_u *check_help_lang(char_u *arg)
-{
- int len = (int)STRLEN(arg);
-
- if (len >= 3 && arg[len - 3] == '@' && ASCII_ISALPHA(arg[len - 2])
- && ASCII_ISALPHA(arg[len - 1])) {
- arg[len - 3] = NUL; /* remove the '@' */
- return arg + len - 2;
- }
- return NULL;
-}
-
-/*
- * Return a heuristic indicating how well the given string matches. The
- * smaller the number, the better the match. This is the order of priorities,
- * from best match to worst match:
- * - Match with least alpha-numeric characters is better.
- * - Match with least total characters is better.
- * - Match towards the start is better.
- * - Match starting with "+" is worse (feature instead of command)
- * Assumption is made that the matched_string passed has already been found to
- * match some string for which help is requested. webb.
- */
-int
-help_heuristic (
- char_u *matched_string,
- int offset, /* offset for match */
- int wrong_case /* no matching case */
-)
-{
- int num_letters;
- char_u *p;
-
- num_letters = 0;
- for (p = matched_string; *p; p++)
- if (ASCII_ISALNUM(*p))
- num_letters++;
-
- /*
- * Multiply the number of letters by 100 to give it a much bigger
- * weighting than the number of characters.
- * If there only is a match while ignoring case, add 5000.
- * If the match starts in the middle of a word, add 10000 to put it
- * somewhere in the last half.
- * If the match is more than 2 chars from the start, multiply by 200 to
- * put it after matches at the start.
- */
- if (ASCII_ISALNUM(matched_string[offset]) && offset > 0
- && ASCII_ISALNUM(matched_string[offset - 1]))
- offset += 10000;
- else if (offset > 2)
- offset *= 200;
- if (wrong_case)
- offset += 5000;
- /* Features are less interesting than the subjects themselves, but "+"
- * alone is not a feature. */
- if (matched_string[0] == '+' && matched_string[1] != NUL)
- offset += 100;
- return (int)(100 * num_letters + STRLEN(matched_string) + offset);
-}
-
-/*
- * Compare functions for qsort() below, that checks the help heuristics number
- * that has been put after the tagname by find_tags().
- */
-static int help_compare(const void *s1, const void *s2)
-{
- char *p1;
- char *p2;
-
- p1 = *(char **)s1 + strlen(*(char **)s1) + 1;
- p2 = *(char **)s2 + strlen(*(char **)s2) + 1;
- return strcmp(p1, p2);
-}
-
-/*
- * Find all help tags matching "arg", sort them and return in matches[], with
- * the number of matches in num_matches.
- * The matches will be sorted with a "best" match algorithm.
- * When "keep_lang" is TRUE try keeping the language of the current buffer.
- */
-int find_help_tags(char_u *arg, int *num_matches, char_u ***matches, int keep_lang)
-{
- char_u *s, *d;
- int i;
- static char *(mtable[]) = {"*", "g*", "[*", "]*", ":*",
- "/*", "/\\*", "\"*", "**",
- "cpo-*", "/\\(\\)", "/\\%(\\)",
- "?", ":?", "?<CR>", "g?", "g?g?", "g??", "z?",
- "/\\?", "/\\z(\\)", "\\=", ":s\\=",
- "[count]", "[quotex]", "[range]",
- "[pattern]", "\\|", "\\%$",
- "s/\\~", "s/\\U", "s/\\L",
- "s/\\1", "s/\\2", "s/\\3", "s/\\9"};
- static char *(rtable[]) = {"star", "gstar", "[star", "]star", ":star",
- "/star", "/\\\\star", "quotestar", "starstar",
- "cpo-star", "/\\\\(\\\\)", "/\\\\%(\\\\)",
- "?", ":?", "?<CR>", "g?", "g?g?", "g??", "z?",
- "/\\\\?", "/\\\\z(\\\\)", "\\\\=", ":s\\\\=",
- "\\[count]", "\\[quotex]", "\\[range]",
- "\\[pattern]", "\\\\bar", "/\\\\%\\$",
- "s/\\\\\\~", "s/\\\\U", "s/\\\\L",
- "s/\\\\1", "s/\\\\2", "s/\\\\3", "s/\\\\9"};
- int flags;
-
- d = IObuff; /* assume IObuff is long enough! */
-
- /*
- * Recognize a few exceptions to the rule. Some strings that contain '*'
- * with "star". Otherwise '*' is recognized as a wildcard.
- */
- for (i = (int)(sizeof(mtable) / sizeof(char *)); --i >= 0; )
- if (STRCMP(arg, mtable[i]) == 0) {
- STRCPY(d, rtable[i]);
- break;
- }
-
- if (i < 0) { /* no match in table */
- /* Replace "\S" with "/\\S", etc. Otherwise every tag is matched.
- * Also replace "\%^" and "\%(", they match every tag too.
- * Also "\zs", "\z1", etc.
- * Also "\@<", "\@=", "\@<=", etc.
- * And also "\_$" and "\_^". */
- if (arg[0] == '\\'
- && ((arg[1] != NUL && arg[2] == NUL)
- || (vim_strchr((char_u *)"%_z@", arg[1]) != NULL
- && arg[2] != NUL))) {
- STRCPY(d, "/\\\\");
- STRCPY(d + 3, arg + 1);
- /* Check for "/\\_$", should be "/\\_\$" */
- if (d[3] == '_' && d[4] == '$')
- STRCPY(d + 4, "\\$");
- } else {
- /* Replace:
- * "[:...:]" with "\[:...:]"
- * "[++...]" with "\[++...]"
- * "\{" with "\\{" -- matching "} \}"
- */
- if ((arg[0] == '[' && (arg[1] == ':'
- || (arg[1] == '+' && arg[2] == '+')))
- || (arg[0] == '\\' && arg[1] == '{'))
- *d++ = '\\';
-
- for (s = arg; *s; ++s) {
- /*
- * Replace "|" with "bar" and '"' with "quote" to match the name of
- * the tags for these commands.
- * Replace "*" with ".*" and "?" with "." to match command line
- * completion.
- * Insert a backslash before '~', '$' and '.' to avoid their
- * special meaning.
- */
- if (d - IObuff > IOSIZE - 10) /* getting too long!? */
- break;
- switch (*s) {
- case '|': STRCPY(d, "bar");
- d += 3;
- continue;
- case '"': STRCPY(d, "quote");
- d += 5;
- continue;
- case '*': *d++ = '.';
- break;
- case '?': *d++ = '.';
- continue;
- case '$':
- case '.':
- case '~': *d++ = '\\';
- break;
- }
-
- /*
- * Replace "^x" by "CTRL-X". Don't do this for "^_" to make
- * ":help i_^_CTRL-D" work.
- * Insert '-' before and after "CTRL-X" when applicable.
- */
- if (*s < ' ' || (*s == '^' && s[1] && (ASCII_ISALPHA(s[1])
- || vim_strchr((char_u *)
- "?@[\\]^",
- s[1]) != NULL))) {
- if (d > IObuff && d[-1] != '_' && d[-1] != '\\')
- *d++ = '_'; /* prepend a '_' to make x_CTRL-x */
- STRCPY(d, "CTRL-");
- d += 5;
- if (*s < ' ') {
- *d++ = *s + '@';
- if (d[-1] == '\\')
- *d++ = '\\'; /* double a backslash */
- } else
- *d++ = *++s;
- if (s[1] != NUL && s[1] != '_')
- *d++ = '_'; /* append a '_' */
- continue;
- } else if (*s == '^') /* "^" or "CTRL-^" or "^_" */
- *d++ = '\\';
-
- /*
- * Insert a backslash before a backslash after a slash, for search
- * pattern tags: "/\|" --> "/\\|".
- */
- else if (s[0] == '\\' && s[1] != '\\'
- && *arg == '/' && s == arg + 1)
- *d++ = '\\';
-
- /* "CTRL-\_" -> "CTRL-\\_" to avoid the special meaning of "\_" in
- * "CTRL-\_CTRL-N" */
- if (STRNICMP(s, "CTRL-\\_", 7) == 0) {
- STRCPY(d, "CTRL-\\\\");
- d += 7;
- s += 6;
- }
-
- *d++ = *s;
-
- /*
- * If tag starts with ', toss everything after a second '. Fixes
- * CTRL-] on 'option'. (would include the trailing '.').
- */
- if (*s == '\'' && s > arg && *arg == '\'')
- break;
- }
- *d = NUL;
-
- if (*IObuff == '`') {
- if (d > IObuff + 2 && d[-1] == '`') {
- /* remove the backticks from `command` */
- memmove(IObuff, IObuff + 1, STRLEN(IObuff));
- d[-2] = NUL;
- } else if (d > IObuff + 3 && d[-2] == '`' && d[-1] == ',') {
- /* remove the backticks and comma from `command`, */
- memmove(IObuff, IObuff + 1, STRLEN(IObuff));
- d[-3] = NUL;
- } else if (d > IObuff + 4 && d[-3] == '`'
- && d[-2] == '\\' && d[-1] == '.') {
- /* remove the backticks and dot from `command`\. */
- memmove(IObuff, IObuff + 1, STRLEN(IObuff));
- d[-4] = NUL;
- }
- }
- }
- }
-
- *matches = (char_u **)"";
- *num_matches = 0;
- flags = TAG_HELP | TAG_REGEXP | TAG_NAMES | TAG_VERBOSE;
- if (keep_lang)
- flags |= TAG_KEEP_LANG;
- if (find_tags(IObuff, num_matches, matches, flags, (int)MAXCOL, NULL) == OK
- && *num_matches > 0) {
- /* Sort the matches found on the heuristic number that is after the
- * tag name. */
- qsort((void *)*matches, (size_t)*num_matches,
- sizeof(char_u *), help_compare);
- /* Delete more than TAG_MANY to reduce the size of the listing. */
- while (*num_matches > TAG_MANY)
- free((*matches)[--*num_matches]);
- }
- return OK;
-}
-
-/*
- * After reading a help file: May cleanup a help buffer when syntax
- * highlighting is not used.
- */
-void fix_help_buffer(void)
-{
- linenr_T lnum;
- char_u *line;
- int in_example = FALSE;
- int len;
- char_u *fname;
- char_u *p;
- char_u *rt;
- int mustfree;
-
- /* set filetype to "help". */
- set_option_value((char_u *)"ft", 0L, (char_u *)"help", OPT_LOCAL);
-
- if (!syntax_present(curwin)) {
- for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) {
- line = ml_get_buf(curbuf, lnum, FALSE);
- len = (int)STRLEN(line);
- if (in_example && len > 0 && !vim_iswhite(line[0])) {
- /* End of example: non-white or '<' in first column. */
- if (line[0] == '<') {
- /* blank-out a '<' in the first column */
- line = ml_get_buf(curbuf, lnum, TRUE);
- line[0] = ' ';
- }
- in_example = FALSE;
- }
- if (!in_example && len > 0) {
- if (line[len - 1] == '>' && (len == 1 || line[len - 2] == ' ')) {
- /* blank-out a '>' in the last column (start of example) */
- line = ml_get_buf(curbuf, lnum, TRUE);
- line[len - 1] = ' ';
- in_example = TRUE;
- } else if (line[len - 1] == '~') {
- /* blank-out a '~' at the end of line (header marker) */
- line = ml_get_buf(curbuf, lnum, TRUE);
- line[len - 1] = ' ';
- }
- }
- }
- }
-
- /*
- * In the "help.txt" and "help.abx" file, add the locally added help
- * files. This uses the very first line in the help file.
- */
- fname = path_tail(curbuf->b_fname);
- if (fnamecmp(fname, "help.txt") == 0
- || (fnamencmp(fname, "help.", 5) == 0
- && ASCII_ISALPHA(fname[5])
- && ASCII_ISALPHA(fname[6])
- && TOLOWER_ASC(fname[7]) == 'x'
- && fname[8] == NUL)
- ) {
- for (lnum = 1; lnum < curbuf->b_ml.ml_line_count; ++lnum) {
- line = ml_get_buf(curbuf, lnum, FALSE);
- if (strstr((char *)line, "*local-additions*") == NULL)
- continue;
-
- /* Go through all directories in 'runtimepath', skipping
- * $VIMRUNTIME. */
- p = p_rtp;
- while (*p != NUL) {
- copy_option_part(&p, NameBuff, MAXPATHL, ",");
- mustfree = FALSE;
- rt = vim_getenv((char_u *)"VIMRUNTIME", &mustfree);
- if (path_full_compare(rt, NameBuff, FALSE) != kEqualFiles) {
- int fcount;
- char_u **fnames;
- FILE *fd;
- char_u *s;
- int fi;
- vimconv_T vc;
- char_u *cp;
-
- /* Find all "doc/ *.txt" files in this directory. */
- add_pathsep(NameBuff);
- STRCAT(NameBuff, "doc/*.??[tx]");
- if (gen_expand_wildcards(1, &NameBuff, &fcount,
- &fnames, EW_FILE|EW_SILENT) == OK
- && fcount > 0) {
- int i1;
- int i2;
- char_u *f1;
- char_u *f2;
- char_u *t1;
- char_u *e1;
- char_u *e2;
-
- /* If foo.abx is found use it instead of foo.txt in
- * the same directory. */
- for (i1 = 0; i1 < fcount; ++i1) {
- for (i2 = 0; i2 < fcount; ++i2) {
- if (i1 == i2)
- continue;
- if (fnames[i1] == NULL || fnames[i2] == NULL)
- continue;
- f1 = fnames[i1];
- f2 = fnames[i2];
- t1 = path_tail(f1);
- if (fnamencmp(f1, f2, t1 - f1) != 0)
- continue;
- e1 = vim_strrchr(t1, '.');
- e2 = vim_strrchr(path_tail(f2), '.');
- if (e1 == NUL || e2 == NUL)
- continue;
- if (fnamecmp(e1, ".txt") != 0
- && fnamecmp(e1, fname + 4) != 0) {
- /* Not .txt and not .abx, remove it. */
- free(fnames[i1]);
- fnames[i1] = NULL;
- continue;
- }
- if (fnamencmp(f1, f2, e1 - f1) != 0)
- continue;
- if (fnamecmp(e1, ".txt") == 0
- && fnamecmp(e2, fname + 4) == 0) {
- /* use .abx instead of .txt */
- free(fnames[i1]);
- fnames[i1] = NULL;
- }
- }
- }
- for (fi = 0; fi < fcount; ++fi) {
- if (fnames[fi] == NULL)
- continue;
- fd = mch_fopen((char *)fnames[fi], "r");
- if (fd != NULL) {
- vim_fgets(IObuff, IOSIZE, fd);
- if (IObuff[0] == '*'
- && (s = vim_strchr(IObuff + 1, '*'))
- != NULL) {
- int this_utf = MAYBE;
- /* Change tag definition to a
- * reference and remove <CR>/<NL>. */
- IObuff[0] = '|';
- *s = '|';
- while (*s != NUL) {
- if (*s == '\r' || *s == '\n')
- *s = NUL;
- /* The text is utf-8 when a byte
- * above 127 is found and no
- * illegal byte sequence is found.
- */
- if (*s >= 0x80 && this_utf != FALSE) {
- int l;
-
- this_utf = TRUE;
- l = utf_ptr2len(s);
- if (l == 1)
- this_utf = FALSE;
- s += l - 1;
- }
- ++s;
- }
- /* The help file is latin1 or utf-8;
- * conversion to the current
- * 'encoding' may be required. */
- vc.vc_type = CONV_NONE;
- convert_setup(&vc, (char_u *)(
- this_utf == TRUE ? "utf-8"
- : "latin1"), p_enc);
- if (vc.vc_type == CONV_NONE)
- /* No conversion needed. */
- cp = IObuff;
- else {
- /* Do the conversion. If it fails
- * use the unconverted text. */
- cp = string_convert(&vc, IObuff,
- NULL);
- if (cp == NULL)
- cp = IObuff;
- }
- convert_setup(&vc, NULL, NULL);
-
- ml_append(lnum, cp, (colnr_T)0, FALSE);
- if (cp != IObuff)
- free(cp);
- ++lnum;
- }
- fclose(fd);
- }
- }
- FreeWild(fcount, fnames);
- }
- }
- if (mustfree)
- free(rt);
- }
- break;
- }
- }
-}
-
-/*
- * ":exusage"
- */
-void ex_exusage(exarg_T *eap)
-{
- do_cmdline_cmd((char_u *)"help ex-cmd-index");
-}
-
-/*
- * ":viusage"
- */
-void ex_viusage(exarg_T *eap)
-{
- do_cmdline_cmd((char_u *)"help normal-index");
-}
-
-static void helptags_one(char_u *dir, char_u *ext, char_u *lang,
- int add_help_tags);
-
-/*
- * ":helptags"
- */
-void ex_helptags(exarg_T *eap)
-{
- garray_T ga;
- int i, j;
- int len;
- char_u lang[2];
- expand_T xpc;
- char_u *dirname;
- char_u ext[5];
- char_u fname[8];
- int filecount;
- char_u **files;
- int add_help_tags = FALSE;
-
- /* Check for ":helptags ++t {dir}". */
- if (STRNCMP(eap->arg, "++t", 3) == 0 && vim_iswhite(eap->arg[3])) {
- add_help_tags = TRUE;
- eap->arg = skipwhite(eap->arg + 3);
- }
-
- ExpandInit(&xpc);
- xpc.xp_context = EXPAND_DIRECTORIES;
- dirname = ExpandOne(&xpc, eap->arg, NULL,
- WILD_LIST_NOTFOUND|WILD_SILENT, WILD_EXPAND_FREE);
- if (dirname == NULL || !os_isdir(dirname)) {
- EMSG2(_("E150: Not a directory: %s"), eap->arg);
- return;
- }
-
- /* Get a list of all files in the help directory and in subdirectories. */
- STRCPY(NameBuff, dirname);
- add_pathsep(NameBuff);
- STRCAT(NameBuff, "**");
- if (gen_expand_wildcards(1, &NameBuff, &filecount, &files,
- EW_FILE|EW_SILENT) == FAIL
- || filecount == 0) {
- EMSG2("E151: No match: %s", NameBuff);
- free(dirname);
- return;
- }
-
- /* Go over all files in the directory to find out what languages are
- * present. */
- ga_init(&ga, 1, 10);
- for (i = 0; i < filecount; ++i) {
- len = (int)STRLEN(files[i]);
- if (len > 4) {
- if (STRICMP(files[i] + len - 4, ".txt") == 0) {
- /* ".txt" -> language "en" */
- lang[0] = 'e';
- lang[1] = 'n';
- } else if (files[i][len - 4] == '.'
- && ASCII_ISALPHA(files[i][len - 3])
- && ASCII_ISALPHA(files[i][len - 2])
- && TOLOWER_ASC(files[i][len - 1]) == 'x') {
- /* ".abx" -> language "ab" */
- lang[0] = TOLOWER_ASC(files[i][len - 3]);
- lang[1] = TOLOWER_ASC(files[i][len - 2]);
- } else
- continue;
-
- /* Did we find this language already? */
- for (j = 0; j < ga.ga_len; j += 2)
- if (STRNCMP(lang, ((char_u *)ga.ga_data) + j, 2) == 0)
- break;
- if (j == ga.ga_len) {
- /* New language, add it. */
- ga_grow(&ga, 2);
- ((char_u *)ga.ga_data)[ga.ga_len++] = lang[0];
- ((char_u *)ga.ga_data)[ga.ga_len++] = lang[1];
- }
- }
- }
-
- /*
- * Loop over the found languages to generate a tags file for each one.
- */
- for (j = 0; j < ga.ga_len; j += 2) {
- STRCPY(fname, "tags-xx");
- fname[5] = ((char_u *)ga.ga_data)[j];
- fname[6] = ((char_u *)ga.ga_data)[j + 1];
- if (fname[5] == 'e' && fname[6] == 'n') {
- /* English is an exception: use ".txt" and "tags". */
- fname[4] = NUL;
- STRCPY(ext, ".txt");
- } else {
- /* Language "ab" uses ".abx" and "tags-ab". */
- STRCPY(ext, ".xxx");
- ext[1] = fname[5];
- ext[2] = fname[6];
- }
- helptags_one(dirname, ext, fname, add_help_tags);
- }
-
- ga_clear(&ga);
- FreeWild(filecount, files);
-
- free(dirname);
-}
-
-static void
-helptags_one (
- char_u *dir, /* doc directory */
- char_u *ext, /* suffix, ".txt", ".itx", ".frx", etc. */
- char_u *tagfname, /* "tags" for English, "tags-fr" for French. */
- int add_help_tags /* add "help-tags" tag */
-)
-{
- FILE *fd_tags;
- FILE *fd;
- garray_T ga;
- int filecount;
- char_u **files;
- char_u *p1, *p2;
- int fi;
- char_u *s;
- int i;
- char_u *fname;
- int dirlen;
- int utf8 = MAYBE;
- int this_utf8;
- int firstline;
- int mix = FALSE; /* detected mixed encodings */
-
- /*
- * Find all *.txt files.
- */
- dirlen = (int)STRLEN(dir);
- STRCPY(NameBuff, dir);
- STRCAT(NameBuff, "/**/*");
- STRCAT(NameBuff, ext);
- if (gen_expand_wildcards(1, &NameBuff, &filecount, &files,
- EW_FILE|EW_SILENT) == FAIL
- || filecount == 0) {
- if (!got_int)
- EMSG2("E151: No match: %s", NameBuff);
- return;
- }
-
- /*
- * Open the tags file for writing.
- * Do this before scanning through all the files.
- */
- STRCPY(NameBuff, dir);
- add_pathsep(NameBuff);
- STRCAT(NameBuff, tagfname);
- fd_tags = mch_fopen((char *)NameBuff, "w");
- if (fd_tags == NULL) {
- EMSG2(_("E152: Cannot open %s for writing"), NameBuff);
- FreeWild(filecount, files);
- return;
- }
-
- /*
- * If using the "++t" argument or generating tags for "$VIMRUNTIME/doc"
- * add the "help-tags" tag.
- */
- ga_init(&ga, (int)sizeof(char_u *), 100);
- if (add_help_tags || path_full_compare((char_u *)"$VIMRUNTIME/doc",
- dir, FALSE) == kEqualFiles) {
- ga_grow(&ga, 1);
- s = xmalloc(18 + STRLEN(tagfname));
- sprintf((char *)s, "help-tags\t%s\t1\n", tagfname);
- ((char_u **)ga.ga_data)[ga.ga_len] = s;
- ++ga.ga_len;
- }
-
- /*
- * Go over all the files and extract the tags.
- */
- for (fi = 0; fi < filecount && !got_int; ++fi) {
- fd = mch_fopen((char *)files[fi], "r");
- if (fd == NULL) {
- EMSG2(_("E153: Unable to open %s for reading"), files[fi]);
- continue;
- }
- fname = files[fi] + dirlen + 1;
-
- firstline = TRUE;
- while (!vim_fgets(IObuff, IOSIZE, fd) && !got_int) {
- if (firstline) {
- /* Detect utf-8 file by a non-ASCII char in the first line. */
- this_utf8 = MAYBE;
- for (s = IObuff; *s != NUL; ++s)
- if (*s >= 0x80) {
- int l;
-
- this_utf8 = TRUE;
- l = utf_ptr2len(s);
- if (l == 1) {
- /* Illegal UTF-8 byte sequence. */
- this_utf8 = FALSE;
- break;
- }
- s += l - 1;
- }
- if (this_utf8 == MAYBE) /* only ASCII characters found */
- this_utf8 = FALSE;
- if (utf8 == MAYBE) /* first file */
- utf8 = this_utf8;
- else if (utf8 != this_utf8) {
- EMSG2(_(
- "E670: Mix of help file encodings within a language: %s"),
- files[fi]);
- mix = !got_int;
- got_int = TRUE;
- }
- firstline = FALSE;
- }
- p1 = vim_strchr(IObuff, '*'); /* find first '*' */
- while (p1 != NULL) {
- /* Use vim_strbyte() instead of vim_strchr() so that when
- * 'encoding' is dbcs it still works, don't find '*' in the
- * second byte. */
- p2 = vim_strbyte(p1 + 1, '*'); /* find second '*' */
- if (p2 != NULL && p2 > p1 + 1) { /* skip "*" and "**" */
- for (s = p1 + 1; s < p2; ++s)
- if (*s == ' ' || *s == '\t' || *s == '|')
- break;
-
- /*
- * Only accept a *tag* when it consists of valid
- * characters, there is white space before it and is
- * followed by a white character or end-of-line.
- */
- if (s == p2
- && (p1 == IObuff || p1[-1] == ' ' || p1[-1] == '\t')
- && (vim_strchr((char_u *)" \t\n\r", s[1]) != NULL
- || s[1] == '\0')) {
- *p2 = '\0';
- ++p1;
- ga_grow(&ga, 1);
- s = xmalloc((p2 - p1) + STRLEN(fname) + 2);
- ((char_u **)ga.ga_data)[ga.ga_len] = s;
- ++ga.ga_len;
- sprintf((char *)s, "%s\t%s", p1, fname);
-
- /* find next '*' */
- p2 = vim_strchr(p2 + 1, '*');
- }
- }
- p1 = p2;
- }
- line_breakcheck();
- }
-
- fclose(fd);
- }
-
- FreeWild(filecount, files);
-
- if (!got_int) {
- /*
- * Sort the tags.
- */
- sort_strings((char_u **)ga.ga_data, ga.ga_len);
-
- /*
- * Check for duplicates.
- */
- for (i = 1; i < ga.ga_len; ++i) {
- p1 = ((char_u **)ga.ga_data)[i - 1];
- p2 = ((char_u **)ga.ga_data)[i];
- while (*p1 == *p2) {
- if (*p2 == '\t') {
- *p2 = NUL;
- vim_snprintf((char *)NameBuff, MAXPATHL,
- _("E154: Duplicate tag \"%s\" in file %s/%s"),
- ((char_u **)ga.ga_data)[i], dir, p2 + 1);
- EMSG(NameBuff);
- *p2 = '\t';
- break;
- }
- ++p1;
- ++p2;
- }
- }
-
- if (utf8 == TRUE)
- fprintf(fd_tags, "!_TAG_FILE_ENCODING\tutf-8\t//\n");
-
- /*
- * Write the tags into the file.
- */
- for (i = 0; i < ga.ga_len; ++i) {
- s = ((char_u **)ga.ga_data)[i];
- if (STRNCMP(s, "help-tags\t", 10) == 0)
- /* help-tags entry was added in formatted form */
- fputs((char *)s, fd_tags);
- else {
- fprintf(fd_tags, "%s\t/*", s);
- for (p1 = s; *p1 != '\t'; ++p1) {
- /* insert backslash before '\\' and '/' */
- if (*p1 == '\\' || *p1 == '/')
- putc('\\', fd_tags);
- putc(*p1, fd_tags);
- }
- fprintf(fd_tags, "*\n");
- }
- }
- }
- if (mix)
- got_int = FALSE; /* continue with other languages */
-
- for (i = 0; i < ga.ga_len; ++i)
- free(((char_u **)ga.ga_data)[i]);
- ga_clear(&ga);
- fclose(fd_tags); /* there is no check for an error... */
-}
-
-/*
- * Struct to hold the sign properties.
- */
-typedef struct sign sign_T;
-
-struct sign
-{
- sign_T *sn_next; /* next sign in list */
- int sn_typenr; /* type number of sign */
- char_u *sn_name; /* name of sign */
- char_u *sn_icon; /* name of pixmap */
- char_u *sn_text; /* text used instead of pixmap */
- int sn_line_hl; /* highlight ID for line */
- int sn_text_hl; /* highlight ID for text */
-};
-
-static sign_T *first_sign = NULL;
-static int next_sign_typenr = 1;
-
-static int sign_cmd_idx (char_u *begin_cmd, char_u *end_cmd);
-static void sign_list_defined (sign_T *sp);
-static void sign_undefine (sign_T *sp, sign_T *sp_prev);
-
-static char *cmds[] = {
- "define",
-#define SIGNCMD_DEFINE 0
- "undefine",
-#define SIGNCMD_UNDEFINE 1
- "list",
-#define SIGNCMD_LIST 2
- "place",
-#define SIGNCMD_PLACE 3
- "unplace",
-#define SIGNCMD_UNPLACE 4
- "jump",
-#define SIGNCMD_JUMP 5
- NULL
-#define SIGNCMD_LAST 6
-};
-
-/*
- * Find index of a ":sign" subcmd from its name.
- * "*end_cmd" must be writable.
- */
-static int sign_cmd_idx(
- char_u *begin_cmd, /* begin of sign subcmd */
- char_u *end_cmd /* just after sign subcmd */
- )
-{
- int idx;
- char save = *end_cmd;
-
- *end_cmd = NUL;
- for (idx = 0; ; ++idx) {
- if (cmds[idx] == NULL || STRCMP(begin_cmd, cmds[idx]) == 0) {
- break;
- }
- }
- *end_cmd = save;
- return idx;
-}
-
-/*
- * ":sign" command
- */
-void ex_sign(exarg_T *eap)
-{
- char_u *arg = eap->arg;
- char_u *p;
- int idx;
- sign_T *sp;
- sign_T *sp_prev;
- buf_T *buf;
-
- /* Parse the subcommand. */
- p = skiptowhite(arg);
- idx = sign_cmd_idx(arg, p);
- if (idx == SIGNCMD_LAST)
- {
- EMSG2(_("E160: Unknown sign command: %s"), arg);
- return;
- }
- arg = skipwhite(p);
-
- if (idx <= SIGNCMD_LIST)
- {
- /*
- * Define, undefine or list signs.
- */
- if (idx == SIGNCMD_LIST && *arg == NUL)
- {
- /* ":sign list": list all defined signs */
- for (sp = first_sign; sp != NULL && !got_int; sp = sp->sn_next)
- sign_list_defined(sp);
- }
- else if (*arg == NUL)
- EMSG(_("E156: Missing sign name"));
- else
- {
- /* Isolate the sign name. If it's a number skip leading zeroes,
- * so that "099" and "99" are the same sign. But keep "0". */
- p = skiptowhite(arg);
- if (*p != NUL)
- *p++ = NUL;
- while (arg[0] == '0' && arg[1] != NUL)
- ++arg;
-
- sp_prev = NULL;
- for (sp = first_sign; sp != NULL; sp = sp->sn_next)
- {
- if (STRCMP(sp->sn_name, arg) == 0)
- break;
- sp_prev = sp;
- }
- if (idx == SIGNCMD_DEFINE)
- {
- /* ":sign define {name} ...": define a sign */
- if (sp == NULL)
- {
- sign_T *lp;
- int start = next_sign_typenr;
-
- /* Allocate a new sign. */
- sp = xcalloc(1, sizeof(sign_T));
-
- /* Check that next_sign_typenr is not already being used.
- * This only happens after wrapping around. Hopefully
- * another one got deleted and we can use its number. */
- for (lp = first_sign; lp != NULL; )
- {
- if (lp->sn_typenr == next_sign_typenr)
- {
- ++next_sign_typenr;
- if (next_sign_typenr == MAX_TYPENR)
- next_sign_typenr = 1;
- if (next_sign_typenr == start)
- {
- free(sp);
- EMSG(_("E612: Too many signs defined"));
- return;
- }
- lp = first_sign; /* start all over */
- continue;
- }
- lp = lp->sn_next;
- }
-
- sp->sn_typenr = next_sign_typenr;
- if (++next_sign_typenr == MAX_TYPENR)
- next_sign_typenr = 1; /* wrap around */
-
- sp->sn_name = vim_strsave(arg);
- if (sp->sn_name == NULL) /* out of memory */
- {
- free(sp);
- return;
- }
-
- /* add the new sign to the list of signs */
- if (sp_prev == NULL)
- first_sign = sp;
- else
- sp_prev->sn_next = sp;
- }
-
- /* set values for a defined sign. */
- for (;;)
- {
- arg = skipwhite(p);
- if (*arg == NUL)
- break;
- p = skiptowhite_esc(arg);
- if (STRNCMP(arg, "icon=", 5) == 0)
- {
- arg += 5;
- free(sp->sn_icon);
- sp->sn_icon = vim_strnsave(arg, (int)(p - arg));
- backslash_halve(sp->sn_icon);
- }
- else if (STRNCMP(arg, "text=", 5) == 0)
- {
- char_u *s;
- int cells;
- int len;
-
- arg += 5;
-
- /* Count cells and check for non-printable chars */
- if (has_mbyte)
- {
- cells = 0;
- for (s = arg; s < p; s += (*mb_ptr2len)(s))
- {
- if (!vim_isprintc((*mb_ptr2char)(s)))
- break;
- cells += (*mb_ptr2cells)(s);
- }
- }
- else
-
- {
- for (s = arg; s < p; ++s)
- if (!vim_isprintc(*s))
- break;
- cells = (int)(s - arg);
- }
- /* Currently must be one or two display cells */
- if (s != p || cells < 1 || cells > 2)
- {
- *p = NUL;
- EMSG2(_("E239: Invalid sign text: %s"), arg);
- return;
- }
-
- free(sp->sn_text);
- /* Allocate one byte more if we need to pad up
- * with a space. */
- len = (int)(p - arg + ((cells == 1) ? 1 : 0));
- sp->sn_text = vim_strnsave(arg, len);
-
- if (sp->sn_text != NULL && cells == 1)
- STRCPY(sp->sn_text + len - 1, " ");
- }
- else if (STRNCMP(arg, "linehl=", 7) == 0)
- {
- arg += 7;
- sp->sn_line_hl = syn_check_group(arg, (int)(p - arg));
- }
- else if (STRNCMP(arg, "texthl=", 7) == 0)
- {
- arg += 7;
- sp->sn_text_hl = syn_check_group(arg, (int)(p - arg));
- }
- else
- {
- EMSG2(_(e_invarg2), arg);
- return;
- }
- }
- }
- else if (sp == NULL)
- EMSG2(_("E155: Unknown sign: %s"), arg);
- else if (idx == SIGNCMD_LIST)
- /* ":sign list {name}" */
- sign_list_defined(sp);
- else
- /* ":sign undefine {name}" */
- sign_undefine(sp, sp_prev);
- }
- }
- else
- {
- int id = -1;
- linenr_T lnum = -1;
- char_u *sign_name = NULL;
- char_u *arg1;
-
- if (*arg == NUL)
- {
- if (idx == SIGNCMD_PLACE)
- {
- /* ":sign place": list placed signs in all buffers */
- sign_list_placed(NULL);
- }
- else if (idx == SIGNCMD_UNPLACE)
- {
- /* ":sign unplace": remove placed sign at cursor */
- id = buf_findsign_id(curwin->w_buffer, curwin->w_cursor.lnum);
- if (id > 0)
- {
- buf_delsign(curwin->w_buffer, id);
- update_debug_sign(curwin->w_buffer, curwin->w_cursor.lnum);
- }
- else
- EMSG(_("E159: Missing sign number"));
- }
- else
- EMSG(_(e_argreq));
- return;
- }
-
- if (idx == SIGNCMD_UNPLACE && arg[0] == '*' && arg[1] == NUL)
- {
- /* ":sign unplace *": remove all placed signs */
- buf_delete_all_signs();
- return;
- }
-
- /* first arg could be placed sign id */
- arg1 = arg;
- if (VIM_ISDIGIT(*arg))
- {
- id = getdigits(&arg);
- if (!vim_iswhite(*arg) && *arg != NUL)
- {
- id = -1;
- arg = arg1;
- }
- else
- {
- arg = skipwhite(arg);
- if (idx == SIGNCMD_UNPLACE && *arg == NUL)
- {
- /* ":sign unplace {id}": remove placed sign by number */
- for (buf = firstbuf; buf != NULL; buf = buf->b_next)
- if ((lnum = buf_delsign(buf, id)) != 0)
- update_debug_sign(buf, lnum);
- return;
- }
- }
- }
-
- /*
- * Check for line={lnum} name={name} and file={fname} or buffer={nr}.
- * Leave "arg" pointing to {fname}.
- */
- for (;;)
- {
- if (STRNCMP(arg, "line=", 5) == 0)
- {
- arg += 5;
- lnum = atoi((char *)arg);
- arg = skiptowhite(arg);
- }
- else if (STRNCMP(arg, "*", 1) == 0 && idx == SIGNCMD_UNPLACE)
- {
- if (id != -1)
- {
- EMSG(_(e_invarg));
- return;
- }
- id = -2;
- arg = skiptowhite(arg + 1);
- }
- else if (STRNCMP(arg, "name=", 5) == 0)
- {
- arg += 5;
- sign_name = arg;
- arg = skiptowhite(arg);
- if (*arg != NUL)
- *arg++ = NUL;
- while (sign_name[0] == '0' && sign_name[1] != NUL)
- ++sign_name;
- }
- else if (STRNCMP(arg, "file=", 5) == 0)
- {
- arg += 5;
- buf = buflist_findname(arg);
- break;
- }
- else if (STRNCMP(arg, "buffer=", 7) == 0)
- {
- arg += 7;
- buf = buflist_findnr((int)getdigits(&arg));
- if (*skipwhite(arg) != NUL)
- EMSG(_(e_trailing));
- break;
- }
- else
- {
- EMSG(_(e_invarg));
- return;
- }
- arg = skipwhite(arg);
- }
-
- if (buf == NULL)
- {
- EMSG2(_("E158: Invalid buffer name: %s"), arg);
- }
- else if (id <= 0 && !(idx == SIGNCMD_UNPLACE && id == -2))
- {
- if (lnum >= 0 || sign_name != NULL)
- EMSG(_(e_invarg));
- else
- /* ":sign place file={fname}": list placed signs in one file */
- sign_list_placed(buf);
- }
- else if (idx == SIGNCMD_JUMP)
- {
- /* ":sign jump {id} file={fname}" */
- if (lnum >= 0 || sign_name != NULL)
- EMSG(_(e_invarg));
- else if ((lnum = buf_findsign(buf, id)) > 0)
- { /* goto a sign ... */
- if (buf_jump_open_win(buf) != NULL)
- { /* ... in a current window */
- curwin->w_cursor.lnum = lnum;
- check_cursor_lnum();
- beginline(BL_WHITE);
- }
- else
- { /* ... not currently in a window */
- char_u *cmd;
-
- cmd = xmalloc(STRLEN(buf->b_fname) + 25);
- sprintf((char *)cmd, "e +%" PRId64 " %s",
- (int64_t)lnum, buf->b_fname);
- do_cmdline_cmd(cmd);
- free(cmd);
- }
-
- foldOpenCursor();
- }
- else
- EMSGN(_("E157: Invalid sign ID: %" PRId64), id);
- }
- else if (idx == SIGNCMD_UNPLACE)
- {
- if (lnum >= 0 || sign_name != NULL)
- EMSG(_(e_invarg));
- else if (id == -2)
- {
- /* ":sign unplace * file={fname}" */
- redraw_buf_later(buf, NOT_VALID);
- buf_delete_signs(buf);
- }
- else
- {
- /* ":sign unplace {id} file={fname}" */
- lnum = buf_delsign(buf, id);
- update_debug_sign(buf, lnum);
- }
- }
- /* idx == SIGNCMD_PLACE */
- else if (sign_name != NULL)
- {
- for (sp = first_sign; sp != NULL; sp = sp->sn_next)
- if (STRCMP(sp->sn_name, sign_name) == 0)
- break;
- if (sp == NULL)
- {
- EMSG2(_("E155: Unknown sign: %s"), sign_name);
- return;
- }
- if (lnum > 0)
- /* ":sign place {id} line={lnum} name={name} file={fname}":
- * place a sign */
- buf_addsign(buf, id, lnum, sp->sn_typenr);
- else
- /* ":sign place {id} file={fname}": change sign type */
- lnum = buf_change_sign_type(buf, id, sp->sn_typenr);
- update_debug_sign(buf, lnum);
- }
- else
- EMSG(_(e_invarg));
- }
-}
-
-/*
- * List one sign.
- */
- static void
-sign_list_defined(sp)
- sign_T *sp;
-{
- char_u *p;
-
- smsg((char_u *)"sign %s", sp->sn_name);
- if (sp->sn_icon != NULL)
- {
- MSG_PUTS(" icon=");
- msg_outtrans(sp->sn_icon);
- MSG_PUTS(_(" (not supported)"));
- }
- if (sp->sn_text != NULL)
- {
- MSG_PUTS(" text=");
- msg_outtrans(sp->sn_text);
- }
- if (sp->sn_line_hl > 0)
- {
- MSG_PUTS(" linehl=");
- p = get_highlight_name(NULL, sp->sn_line_hl - 1);
- if (p == NULL)
- MSG_PUTS("NONE");
- else
- msg_puts(p);
- }
- if (sp->sn_text_hl > 0)
- {
- MSG_PUTS(" texthl=");
- p = get_highlight_name(NULL, sp->sn_text_hl - 1);
- if (p == NULL)
- MSG_PUTS("NONE");
- else
- msg_puts(p);
- }
-}
-
-/*
- * Undefine a sign and free its memory.
- */
- static void
-sign_undefine(sp, sp_prev)
- sign_T *sp;
- sign_T *sp_prev;
-{
- free(sp->sn_name);
- free(sp->sn_icon);
- free(sp->sn_text);
- if (sp_prev == NULL)
- first_sign = sp->sn_next;
- else
- sp_prev->sn_next = sp->sn_next;
- free(sp);
-}
-
-/*
- * Get highlighting attribute for sign "typenr".
- * If "line" is TRUE: line highl, if FALSE: text highl.
- */
- int
-sign_get_attr(typenr, line)
- int typenr;
- int line;
-{
- sign_T *sp;
-
- for (sp = first_sign; sp != NULL; sp = sp->sn_next)
- if (sp->sn_typenr == typenr)
- {
- if (line)
- {
- if (sp->sn_line_hl > 0)
- return syn_id2attr(sp->sn_line_hl);
- }
- else
- {
- if (sp->sn_text_hl > 0)
- return syn_id2attr(sp->sn_text_hl);
- }
- break;
- }
- return 0;
-}
-
-/*
- * Get text mark for sign "typenr".
- * Returns NULL if there isn't one.
- */
- char_u *
-sign_get_text(typenr)
- int typenr;
-{
- sign_T *sp;
-
- for (sp = first_sign; sp != NULL; sp = sp->sn_next)
- if (sp->sn_typenr == typenr)
- return sp->sn_text;
- return NULL;
-}
-
-
-/*
- * Get the name of a sign by its typenr.
- */
- char_u *
-sign_typenr2name(typenr)
- int typenr;
-{
- sign_T *sp;
-
- for (sp = first_sign; sp != NULL; sp = sp->sn_next)
- if (sp->sn_typenr == typenr)
- return sp->sn_name;
- return (char_u *)_("[Deleted]");
-}
-
-#if defined(EXITFREE) || defined(PROTO)
-/*
- * Undefine/free all signs.
- */
- void
-free_signs()
-{
- while (first_sign != NULL)
- sign_undefine(first_sign, NULL);
-}
-#endif
-
-static enum
-{
- EXP_SUBCMD, /* expand :sign sub-commands */
- EXP_DEFINE, /* expand :sign define {name} args */
- EXP_PLACE, /* expand :sign place {id} args */
- EXP_UNPLACE, /* expand :sign unplace" */
- EXP_SIGN_NAMES /* expand with name of placed signs */
-} expand_what;
-
-/*
- * Function given to ExpandGeneric() to obtain the sign command
- * expansion.
- */
-char_u * get_sign_name(expand_T *xp, int idx)
-{
- sign_T *sp;
- int current_idx;
-
- switch (expand_what)
- {
- case EXP_SUBCMD:
- return (char_u *)cmds[idx];
- case EXP_DEFINE:
- {
- char *define_arg[] =
- {
- "icon=", "linehl=", "text=", "texthl=", NULL
- };
- return (char_u *)define_arg[idx];
- }
- case EXP_PLACE:
- {
- char *place_arg[] =
- {
- "line=", "name=", "file=", "buffer=", NULL
- };
- return (char_u *)place_arg[idx];
- }
- case EXP_UNPLACE:
- {
- char *unplace_arg[] = { "file=", "buffer=", NULL };
- return (char_u *)unplace_arg[idx];
- }
- case EXP_SIGN_NAMES:
- /* Complete with name of signs already defined */
- current_idx = 0;
- for (sp = first_sign; sp != NULL; sp = sp->sn_next)
- if (current_idx++ == idx)
- return sp->sn_name;
- return NULL;
- default:
- return NULL;
- }
-}
-
-/*
- * Handle command line completion for :sign command.
- */
- void
-set_context_in_sign_cmd(xp, arg)
- expand_T *xp;
- char_u *arg;
-{
- char_u *p;
- char_u *end_subcmd;
- char_u *last;
- int cmd_idx;
- char_u *begin_subcmd_args;
-
- /* Default: expand subcommands. */
- xp->xp_context = EXPAND_SIGN;
- expand_what = EXP_SUBCMD;
- xp->xp_pattern = arg;
-
- end_subcmd = skiptowhite(arg);
- if (*end_subcmd == NUL)
- /* expand subcmd name
- * :sign {subcmd}<CTRL-D>*/
- return;
-
- cmd_idx = sign_cmd_idx(arg, end_subcmd);
-
- /* :sign {subcmd} {subcmd_args}
- * |
- * begin_subcmd_args */
- begin_subcmd_args = skipwhite(end_subcmd);
- p = skiptowhite(begin_subcmd_args);
- if (*p == NUL)
- {
- /*
- * Expand first argument of subcmd when possible.
- * For ":jump {id}" and ":unplace {id}", we could
- * possibly expand the ids of all signs already placed.
- */
- xp->xp_pattern = begin_subcmd_args;
- switch (cmd_idx)
- {
- case SIGNCMD_LIST:
- case SIGNCMD_UNDEFINE:
- /* :sign list <CTRL-D>
- * :sign undefine <CTRL-D> */
- expand_what = EXP_SIGN_NAMES;
- break;
- default:
- xp->xp_context = EXPAND_NOTHING;
- }
- return;
- }
-
- /* expand last argument of subcmd */
-
- /* :sign define {name} {args}...
- * |
- * p */
-
- /* Loop until reaching last argument. */
- do
- {
- p = skipwhite(p);
- last = p;
- p = skiptowhite(p);
- } while (*p != NUL);
-
- p = vim_strchr(last, '=');
-
- /* :sign define {name} {args}... {last}=
- * | |
- * last p */
- if (p == NUL)
- {
- /* Expand last argument name (before equal sign). */
- xp->xp_pattern = last;
- switch (cmd_idx)
- {
- case SIGNCMD_DEFINE:
- expand_what = EXP_DEFINE;
- break;
- case SIGNCMD_PLACE:
- expand_what = EXP_PLACE;
- break;
- case SIGNCMD_JUMP:
- case SIGNCMD_UNPLACE:
- expand_what = EXP_UNPLACE;
- break;
- default:
- xp->xp_context = EXPAND_NOTHING;
- }
- }
- else
- {
- /* Expand last argument value (after equal sign). */
- xp->xp_pattern = p + 1;
- switch (cmd_idx)
- {
- case SIGNCMD_DEFINE:
- if (STRNCMP(last, "texthl", p - last) == 0 ||
- STRNCMP(last, "linehl", p - last) == 0)
- xp->xp_context = EXPAND_HIGHLIGHT;
- else if (STRNCMP(last, "icon", p - last) == 0)
- xp->xp_context = EXPAND_FILES;
- else
- xp->xp_context = EXPAND_NOTHING;
- break;
- case SIGNCMD_PLACE:
- if (STRNCMP(last, "name", p - last) == 0)
- expand_what = EXP_SIGN_NAMES;
- else
- xp->xp_context = EXPAND_NOTHING;
- break;
- default:
- xp->xp_context = EXPAND_NOTHING;
- }
- }
-}
-
generated by cgit (git 2.34.1) at 2025-07-27 03:48:46 +0000