Introduce nvim namespace: Move files.

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

1 files changed, 0 insertions, 3881 deletions

diff --git a/src/message.c b/src/message.c
deleted file mode 100644
index feb1226e6d..0000000000
--- a/src/message.c
+++ /dev/null
@@ -1,3881 +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.
- */
-
-/*
- * message.c: functions for displaying messages on the command line
- */
-
-#define MESSAGE_FILE            /* don't include prototype for smsg() */
-
-#include <string.h>
-
-#include "vim.h"
-#include "message.h"
-#include "charset.h"
-#include "eval.h"
-#include "ex_eval.h"
-#include "fileio.h"
-#include "getchar.h"
-#include "mbyte.h"
-#include "memory.h"
-#include "misc1.h"
-#include "misc2.h"
-#include "keymap.h"
-#include "garray.h"
-#include "ops.h"
-#include "option.h"
-#include "normal.h"
-#include "screen.h"
-#include "term.h"
-#include "ui.h"
-#include "os/os.h"
-#include "os/event.h"
-
-#if defined(FEAT_FLOAT)
-# include <math.h>
-#endif
-
-static int other_sourcing_name(void);
-static char_u *get_emsg_source(void);
-static char_u *get_emsg_lnum(void);
-static void add_msg_hist(char_u *s, int len, int attr);
-static void hit_return_msg(void);
-static void msg_home_replace_attr(char_u *fname, int attr);
-static char_u *screen_puts_mbyte(char_u *s, int l, int attr);
-static void msg_puts_attr_len(char_u *str, int maxlen, int attr);
-static void msg_puts_display(char_u *str, int maxlen, int attr,
-                             int recurse);
-static void msg_scroll_up(void);
-static void inc_msg_scrolled(void);
-static void store_sb_text(char_u **sb_str, char_u *s, int attr,
-                          int *sb_col,
-                          int finish);
-static void t_puts(int *t_col, char_u *t_s, char_u *s, int attr);
-static void msg_puts_printf(char_u *str, int maxlen);
-static int do_more_prompt(int typed_char);
-static void msg_screen_putchar(int c, int attr);
-static int msg_check_screen(void);
-static void redir_write(char_u *s, int maxlen);
-
-/// Allocates memory for dialog string & for storing hotkeys
-///
-/// Finds the size of memory required for the confirm_msg & for storing hotkeys
-/// and then allocates the memory for them.
-/// has_hotkey array is also filled-up.
-///
-/// @param message Message which will be part of the confirm_msg
-/// @param buttons String containing button names
-/// @param[out] has_hotkey A element in this array is set to true if
-///                        corresponding button has a hotkey
-///
-/// @return Pointer to memory allocated for storing hotkeys
-static char_u * console_dialog_alloc(const char_u *message,
-                                     char_u *buttons,
-                                     bool has_hotkey[]);
-
-/// Copies hotkeys & dialog message into the memory allocated for it
-///
-/// @param message Message which will be part of the confirm_msg
-/// @param buttons String containing button names
-/// @param default_button_idx Number of default button
-/// @param has_hotkey A element in this array is true if corresponding button
-///                   has a hotkey
-/// @param[out] hotkeys_ptr Pointer to the memory location where hotkeys will be copied
-static void copy_hotkeys_and_msg(const char_u *message, char_u *buttons,
-                                 int default_button_idx, const bool has_hotkey[],
-                                 char_u *hotkeys_ptr);
-
-static char_u *msg_show_console_dialog(char_u *message, char_u *buttons,
-                                       int dfltbutton);
-static int confirm_msg_used = FALSE;            /* displaying confirm_msg */
-static char_u   *confirm_msg = NULL;            /* ":confirm" message */
-static char_u   *confirm_msg_tail;              /* tail of confirm_msg */
-
-struct msg_hist {
-  struct msg_hist     *next;
-  char_u              *msg;
-  int attr;
-};
-
-static struct msg_hist *first_msg_hist = NULL;
-static struct msg_hist *last_msg_hist = NULL;
-static int msg_hist_len = 0;
-
-static FILE *verbose_fd = NULL;
-static int verbose_did_open = FALSE;
-
-/*
- * When writing messages to the screen, there are many different situations.
- * A number of variables is used to remember the current state:
- * msg_didany	    TRUE when messages were written since the last time the
- *		    user reacted to a prompt.
- *		    Reset: After hitting a key for the hit-return prompt,
- *		    hitting <CR> for the command line or input().
- *		    Set: When any message is written to the screen.
- * msg_didout	    TRUE when something was written to the current line.
- *		    Reset: When advancing to the next line, when the current
- *		    text can be overwritten.
- *		    Set: When any message is written to the screen.
- * msg_nowait	    No extra delay for the last drawn message.
- *		    Used in normal_cmd() before the mode message is drawn.
- * emsg_on_display  There was an error message recently.  Indicates that there
- *		    should be a delay before redrawing.
- * msg_scroll	    The next message should not overwrite the current one.
- * msg_scrolled	    How many lines the screen has been scrolled (because of
- *		    messages).  Used in update_screen() to scroll the screen
- *		    back.  Incremented each time the screen scrolls a line.
- * msg_scrolled_ign  TRUE when msg_scrolled is non-zero and msg_puts_attr()
- *		    writes something without scrolling should not make
- *		    need_wait_return to be set.  This is a hack to make ":ts"
- *		    work without an extra prompt.
- * lines_left	    Number of lines available for messages before the
- *		    more-prompt is to be given.  -1 when not set.
- * need_wait_return TRUE when the hit-return prompt is needed.
- *		    Reset: After giving the hit-return prompt, when the user
- *		    has answered some other prompt.
- *		    Set: When the ruler or typeahead display is overwritten,
- *		    scrolling the screen for some message.
- * keep_msg	    Message to be displayed after redrawing the screen, in
- *		    main_loop().
- *		    This is an allocated string or NULL when not used.
- */
-
-/*
- * msg(s) - displays the string 's' on the status line
- * When terminal not initialized (yet) mch_errmsg(..) is used.
- * return TRUE if wait_return not called
- */
-int msg(char_u *s)
-{
-  return msg_attr_keep(s, 0, FALSE);
-}
-
-#if defined(FEAT_EVAL) || defined(FEAT_GUI_GTK) || defined(PROTO)
-/*
- * Like msg() but keep it silent when 'verbosefile' is set.
- */
-int verb_msg(char_u *s)
-{
-  int n;
-
-  verbose_enter();
-  n = msg_attr_keep(s, 0, FALSE);
-  verbose_leave();
-
-  return n;
-}
-#endif
-
-int msg_attr(char_u *s, int attr)
-{
-  return msg_attr_keep(s, attr, FALSE);
-}
-
-int 
-msg_attr_keep (
-    char_u *s,
-    int attr,
-    int keep                   /* TRUE: set keep_msg if it doesn't scroll */
-)
-{
-  static int entered = 0;
-  int retval;
-  char_u      *buf = NULL;
-
-  if (attr == 0)
-    set_vim_var_string(VV_STATUSMSG, s, -1);
-
-  /*
-   * It is possible that displaying a messages causes a problem (e.g.,
-   * when redrawing the window), which causes another message, etc..	To
-   * break this loop, limit the recursiveness to 3 levels.
-   */
-  if (entered >= 3)
-    return TRUE;
-  ++entered;
-
-  /* Add message to history (unless it's a repeated kept message or a
-   * truncated message) */
-  if (s != keep_msg
-      || (*s != '<'
-          && last_msg_hist != NULL
-          && last_msg_hist->msg != NULL
-          && STRCMP(s, last_msg_hist->msg)))
-    add_msg_hist(s, -1, attr);
-
-  /* When displaying keep_msg, don't let msg_start() free it, caller must do
-   * that. */
-  if (s == keep_msg)
-    keep_msg = NULL;
-
-  /* Truncate the message if needed. */
-  msg_start();
-  buf = msg_strtrunc(s, FALSE);
-  if (buf != NULL)
-    s = buf;
-
-  msg_outtrans_attr(s, attr);
-  msg_clr_eos();
-  retval = msg_end();
-
-  if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1)
-      * Columns + sc_col)
-    set_keep_msg(s, 0);
-
-  free(buf);
-  --entered;
-  return retval;
-}
-
-/*
- * Truncate a string such that it can be printed without causing a scroll.
- * Returns an allocated string or NULL when no truncating is done.
- */
-char_u *
-msg_strtrunc (
-    char_u *s,
-    int force                  /* always truncate */
-)
-{
-  char_u      *buf = NULL;
-  int len;
-  int room;
-
-  /* May truncate message to avoid a hit-return prompt */
-  if ((!msg_scroll && !need_wait_return && shortmess(SHM_TRUNCALL)
-       && !exmode_active && msg_silent == 0) || force) {
-    len = vim_strsize(s);
-    if (msg_scrolled != 0)
-      /* Use all the columns. */
-      room = (int)(Rows - msg_row) * Columns - 1;
-    else
-      /* Use up to 'showcmd' column. */
-      room = (int)(Rows - msg_row - 1) * Columns + sc_col - 1;
-    if (len > room && room > 0) {
-      if (enc_utf8)
-        /* may have up to 18 bytes per cell (6 per char, up to two
-         * composing chars) */
-        len = (room + 2) * 18;
-      else if (enc_dbcs == DBCS_JPNU)
-        /* may have up to 2 bytes per cell for euc-jp */
-        len = (room + 2) * 2;
-      else
-        len = room + 2;
-      buf = alloc(len);
-      trunc_string(s, buf, room, len);
-    }
-  }
-  return buf;
-}
-
-/*
- * Truncate a string "s" to "buf" with cell width "room".
- * "s" and "buf" may be equal.
- */
-void trunc_string(char_u *s, char_u *buf, int room, int buflen)
-{
-  int half;
-  int len;
-  int e;
-  int i;
-  int n;
-
-  room -= 3;
-  half = room / 2;
-  len = 0;
-
-  /* First part: Start of the string. */
-  for (e = 0; len < half && e < buflen; ++e) {
-    if (s[e] == NUL) {
-      /* text fits without truncating! */
-      buf[e] = NUL;
-      return;
-    }
-    n = ptr2cells(s + e);
-    if (len + n >= half)
-      break;
-    len += n;
-    buf[e] = s[e];
-    if (has_mbyte)
-      for (n = (*mb_ptr2len)(s + e); --n > 0; ) {
-        if (++e == buflen)
-          break;
-        buf[e] = s[e];
-      }
-  }
-
-  /* Last part: End of the string. */
-  i = e;
-  if (enc_dbcs != 0) {
-    /* For DBCS going backwards in a string is slow, but
-     * computing the cell width isn't too slow: go forward
-     * until the rest fits. */
-    n = vim_strsize(s + i);
-    while (len + n > room) {
-      n -= ptr2cells(s + i);
-      i += (*mb_ptr2len)(s + i);
-    }
-  } else if (enc_utf8) {
-    /* For UTF-8 we can go backwards easily. */
-    half = i = (int)STRLEN(s);
-    for (;; ) {
-      do
-        half = half - (*mb_head_off)(s, s + half - 1) - 1;
-      while (utf_iscomposing(utf_ptr2char(s + half)) && half > 0);
-      n = ptr2cells(s + half);
-      if (len + n > room)
-        break;
-      len += n;
-      i = half;
-    }
-  } else {
-    for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i)
-      len += n;
-  }
-
-  /* Set the middle and copy the last part. */
-  if (e + 3 < buflen) {
-    memmove(buf + e, "...", (size_t)3);
-    len = (int)STRLEN(s + i) + 1;
-    if (len >= buflen - e - 3)
-      len = buflen - e - 3 - 1;
-    memmove(buf + e + 3, s + i, len);
-    buf[e + 3 + len - 1] = NUL;
-  } else {
-    buf[e - 1] = NUL;      /* make sure it is truncated */
-  }
-}
-
-/*
- * Automatic prototype generation does not understand this function.
- * Note: Caller of smgs() and smsg_attr() must check the resulting string is
- * shorter than IOSIZE!!!
- */
-int vim_snprintf(char *str, size_t str_m, char *fmt, ...);
-
-int smsg(char_u *s, ...)
-{
-  va_list arglist;
-
-  va_start(arglist, s);
-  vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL);
-  va_end(arglist);
-  return msg(IObuff);
-}
-
-int smsg_attr(int attr, char_u *s, ...)
-{
-  va_list arglist;
-
-  va_start(arglist, s);
-  vim_vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist, NULL);
-  va_end(arglist);
-  return msg_attr(IObuff, attr);
-}
-
-/*
- * Remember the last sourcing name/lnum used in an error message, so that it
- * isn't printed each time when it didn't change.
- */
-static int last_sourcing_lnum = 0;
-static char_u   *last_sourcing_name = NULL;
-
-/*
- * Reset the last used sourcing name/lnum.  Makes sure it is displayed again
- * for the next error message;
- */
-void reset_last_sourcing(void)
-{
-  free(last_sourcing_name);
-  last_sourcing_name = NULL;
-  last_sourcing_lnum = 0;
-}
-
-/*
- * Return TRUE if "sourcing_name" differs from "last_sourcing_name".
- */
-static int other_sourcing_name(void)
-{
-  if (sourcing_name != NULL) {
-    if (last_sourcing_name != NULL)
-      return STRCMP(sourcing_name, last_sourcing_name) != 0;
-    return TRUE;
-  }
-  return FALSE;
-}
-
-/*
- * Get the message about the source, as used for an error message.
- * Returns an allocated string with room for one more character.
- * Returns NULL when no message is to be given.
- */
-static char_u *get_emsg_source(void)
-{
-  char_u      *Buf, *p;
-
-  if (sourcing_name != NULL && other_sourcing_name()) {
-    p = (char_u *)_("Error detected while processing %s:");
-    Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p)));
-    sprintf((char *)Buf, (char *)p, sourcing_name);
-    return Buf;
-  }
-  return NULL;
-}
-
-/*
- * Get the message about the source lnum, as used for an error message.
- * Returns an allocated string with room for one more character.
- * Returns NULL when no message is to be given.
- */
-static char_u *get_emsg_lnum(void)
-{
-  char_u      *Buf, *p;
-
-  /* lnum is 0 when executing a command from the command line
-   * argument, we don't want a line number then */
-  if (sourcing_name != NULL
-      && (other_sourcing_name() || sourcing_lnum != last_sourcing_lnum)
-      && sourcing_lnum != 0) {
-    p = (char_u *)_("line %4ld:");
-    Buf = alloc((unsigned)(STRLEN(p) + 20));
-    sprintf((char *)Buf, (char *)p, (long)sourcing_lnum);
-    return Buf;
-  }
-  return NULL;
-}
-
-/*
- * Display name and line number for the source of an error.
- * Remember the file name and line number, so that for the next error the info
- * is only displayed if it changed.
- */
-void msg_source(int attr)
-{
-  char_u      *p;
-
-  ++no_wait_return;
-  p = get_emsg_source();
-  if (p != NULL) {
-    msg_attr(p, attr);
-    free(p);
-  }
-  p = get_emsg_lnum();
-  if (p != NULL) {
-    msg_attr(p, hl_attr(HLF_N));
-    free(p);
-    last_sourcing_lnum = sourcing_lnum;      /* only once for each line */
-  }
-
-  /* remember the last sourcing name printed, also when it's empty */
-  if (sourcing_name == NULL || other_sourcing_name()) {
-    free(last_sourcing_name);
-    if (sourcing_name == NULL)
-      last_sourcing_name = NULL;
-    else
-      last_sourcing_name = vim_strsave(sourcing_name);
-  }
-  --no_wait_return;
-}
-
-/*
- * Return TRUE if not giving error messages right now:
- * If "emsg_off" is set: no error messages at the moment.
- * If "msg" is in 'debug': do error message but without side effects.
- * If "emsg_skip" is set: never do error messages.
- */
-int emsg_not_now(void)
-{
-  if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL
-       && vim_strchr(p_debug, 't') == NULL)
-      || emsg_skip > 0
-      )
-    return TRUE;
-  return FALSE;
-}
-
-/*
- * emsg() - display an error message
- *
- * Rings the bell, if appropriate, and calls message() to do the real work
- * When terminal not initialized (yet) mch_errmsg(..) is used.
- *
- * return TRUE if wait_return not called
- */
-int emsg(char_u *s)
-{
-  int attr;
-  char_u      *p;
-  int ignore = FALSE;
-  int severe;
-
-  /* Skip this if not giving error messages at the moment. */
-  if (emsg_not_now())
-    return TRUE;
-
-  called_emsg = TRUE;
-  ex_exitval = 1;
-
-  /*
-   * If "emsg_severe" is TRUE: When an error exception is to be thrown,
-   * prefer this message over previous messages for the same command.
-   */
-  severe = emsg_severe;
-  emsg_severe = FALSE;
-
-  if (!emsg_off || vim_strchr(p_debug, 't') != NULL) {
-    /*
-     * Cause a throw of an error exception if appropriate.  Don't display
-     * the error message in this case.  (If no matching catch clause will
-     * be found, the message will be displayed later on.)  "ignore" is set
-     * when the message should be ignored completely (used for the
-     * interrupt message).
-     */
-    if (cause_errthrow(s, severe, &ignore) == TRUE) {
-      if (!ignore)
-        did_emsg = TRUE;
-      return TRUE;
-    }
-
-    /* set "v:errmsg", also when using ":silent! cmd" */
-    set_vim_var_string(VV_ERRMSG, s, -1);
-
-    /*
-     * When using ":silent! cmd" ignore error messages.
-     * But do write it to the redirection file.
-     */
-    if (emsg_silent != 0) {
-      msg_start();
-      p = get_emsg_source();
-      if (p != NULL) {
-        STRCAT(p, "\n");
-        redir_write(p, -1);
-        free(p);
-      }
-      p = get_emsg_lnum();
-      if (p != NULL) {
-        STRCAT(p, "\n");
-        redir_write(p, -1);
-        free(p);
-      }
-      redir_write(s, -1);
-      return TRUE;
-    }
-
-    /* Reset msg_silent, an error causes messages to be switched back on. */
-    msg_silent = 0;
-    cmd_silent = FALSE;
-
-    if (global_busy)                    /* break :global command */
-      ++global_busy;
-
-    if (p_eb)
-      beep_flush();                     /* also includes flush_buffers() */
-    else
-      flush_buffers(FALSE);             /* flush internal buffers */
-    did_emsg = TRUE;                    /* flag for DoOneCmd() */
-  }
-
-  emsg_on_display = TRUE;       /* remember there is an error message */
-  ++msg_scroll;                 /* don't overwrite a previous message */
-  attr = hl_attr(HLF_E);        /* set highlight mode for error messages */
-  if (msg_scrolled != 0)
-    need_wait_return = TRUE;        /* needed in case emsg() is called after
-                                     * wait_return has reset need_wait_return
-                                     * and a redraw is expected because
-                                     * msg_scrolled is non-zero */
-
-  /*
-   * Display name and line number for the source of the error.
-   */
-  msg_source(attr);
-
-  /*
-   * Display the error message itself.
-   */
-  msg_nowait = FALSE;                   /* wait for this msg */
-  return msg_attr(s, attr);
-}
-
-/*
- * Print an error message with one "%s" and one string argument.
- */
-int emsg2(char_u *s, char_u *a1)
-{
-  return emsg3(s, a1, NULL);
-}
-
-/* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */
-
-void emsg_invreg(int name)
-{
-  EMSG2(_("E354: Invalid register name: '%s'"), transchar(name));
-}
-
-/*
- * Like msg(), but truncate to a single line if p_shm contains 't', or when
- * "force" is TRUE.  This truncates in another way as for normal messages.
- * Careful: The string may be changed by msg_may_trunc()!
- * Returns a pointer to the printed message, if wait_return() not called.
- */
-char_u *msg_trunc_attr(char_u *s, int force, int attr)
-{
-  int n;
-
-  /* Add message to history before truncating */
-  add_msg_hist(s, -1, attr);
-
-  s = msg_may_trunc(force, s);
-
-  msg_hist_off = TRUE;
-  n = msg_attr(s, attr);
-  msg_hist_off = FALSE;
-
-  if (n)
-    return s;
-  return NULL;
-}
-
-/*
- * Check if message "s" should be truncated at the start (for filenames).
- * Return a pointer to where the truncated message starts.
- * Note: May change the message by replacing a character with '<'.
- */
-char_u *msg_may_trunc(int force, char_u *s)
-{
-  int n;
-  int room;
-
-  room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1;
-  if ((force || (shortmess(SHM_TRUNC) && !exmode_active))
-      && (n = (int)STRLEN(s) - room) > 0) {
-    if (has_mbyte) {
-      int size = vim_strsize(s);
-
-      /* There may be room anyway when there are multibyte chars. */
-      if (size <= room)
-        return s;
-
-      for (n = 0; size >= room; ) {
-        size -= (*mb_ptr2cells)(s + n);
-        n += (*mb_ptr2len)(s + n);
-      }
-      --n;
-    }
-    s += n;
-    *s = '<';
-  }
-  return s;
-}
-
-static void 
-add_msg_hist (
-    char_u *s,
-    int len,                        /* -1 for undetermined length */
-    int attr
-)
-{
-  struct msg_hist *p;
-
-  if (msg_hist_off || msg_silent != 0)
-    return;
-
-  /* Don't let the message history get too big */
-  while (msg_hist_len > MAX_MSG_HIST_LEN)
-    (void)delete_first_msg();
-
-  /* allocate an entry and add the message at the end of the history */
-  p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist));
-  if (len < 0)
-    len = (int)STRLEN(s);
-  /* remove leading and trailing newlines */
-  while (len > 0 && *s == '\n') {
-    ++s;
-    --len;
-  }
-  while (len > 0 && s[len - 1] == '\n')
-    --len;
-  p->msg = vim_strnsave(s, len);
-  p->next = NULL;
-  p->attr = attr;
-  if (last_msg_hist != NULL)
-    last_msg_hist->next = p;
-  last_msg_hist = p;
-  if (first_msg_hist == NULL)
-    first_msg_hist = last_msg_hist;
-  ++msg_hist_len;
-}
-
-/*
- * Delete the first (oldest) message from the history.
- * Returns FAIL if there are no messages.
- */
-int delete_first_msg(void)
-{
-  struct msg_hist *p;
-
-  if (msg_hist_len <= 0)
-    return FAIL;
-  p = first_msg_hist;
-  first_msg_hist = p->next;
-  if (first_msg_hist == NULL)
-    last_msg_hist = NULL;      /* history is empty */
-  free(p->msg);
-  free(p);
-  --msg_hist_len;
-  return OK;
-}
-
-/*
- * ":messages" command.
- */
-void ex_messages(exarg_T *eap)
-{
-  struct msg_hist *p;
-  const char      *s;
-
-  msg_hist_off = TRUE;
-
-  s = os_getenv("LANG");
-  if (s != NULL && *s != NUL)
-    msg_attr((char_u *)
-        _("Messages maintainer: Bram Moolenaar <Bram@vim.org>"),
-        hl_attr(HLF_T));
-
-  for (p = first_msg_hist; p != NULL && !got_int; p = p->next)
-    if (p->msg != NULL)
-      msg_attr(p->msg, p->attr);
-
-  msg_hist_off = FALSE;
-}
-
-/*
- * Call this after prompting the user.  This will avoid a hit-return message
- * and a delay.
- */
-void msg_end_prompt(void)
-{
-  need_wait_return = FALSE;
-  emsg_on_display = FALSE;
-  cmdline_row = msg_row;
-  msg_col = 0;
-  msg_clr_eos();
-  lines_left = -1;
-}
-
-/*
- * wait for the user to hit a key (normally a return)
- * if 'redraw' is TRUE, clear and redraw the screen
- * if 'redraw' is FALSE, just redraw the screen
- * if 'redraw' is -1, don't redraw at all
- */
-void wait_return(int redraw)
-{
-  int c;
-  int oldState;
-  int tmpState;
-  int had_got_int;
-  int save_Recording;
-  FILE        *save_scriptout;
-
-  if (redraw == TRUE)
-    must_redraw = CLEAR;
-
-  /* If using ":silent cmd", don't wait for a return.  Also don't set
-   * need_wait_return to do it later. */
-  if (msg_silent != 0)
-    return;
-
-  /*
-   * When inside vgetc(), we can't wait for a typed character at all.
-   * With the global command (and some others) we only need one return at
-   * the end. Adjust cmdline_row to avoid the next message overwriting the
-   * last one.
-   */
-  if (vgetc_busy > 0)
-    return;
-  need_wait_return = TRUE;
-  if (no_wait_return) {
-    if (!exmode_active)
-      cmdline_row = msg_row;
-    return;
-  }
-
-  redir_off = TRUE;             /* don't redirect this message */
-  oldState = State;
-  if (quit_more) {
-    c = CAR;                    /* just pretend CR was hit */
-    quit_more = FALSE;
-    got_int = FALSE;
-  } else if (exmode_active) {
-    MSG_PUTS(" ");              /* make sure the cursor is on the right line */
-    c = CAR;                    /* no need for a return in ex mode */
-    got_int = FALSE;
-  } else {
-    /* Make sure the hit-return prompt is on screen when 'guioptions' was
-     * just changed. */
-    screenalloc(FALSE);
-
-    State = HITRETURN;
-    setmouse();
-#ifdef USE_ON_FLY_SCROLL
-    dont_scroll = TRUE;                 /* disallow scrolling here */
-#endif
-    /* Avoid the sequence that the user types ":" at the hit-return prompt
-     * to start an Ex command, but the file-changed dialog gets in the
-     * way. */
-    if (need_check_timestamps)
-      check_timestamps(FALSE);
-
-    hit_return_msg();
-
-    do {
-      /* Remember "got_int", if it is set vgetc() probably returns a
-       * CTRL-C, but we need to loop then. */
-      had_got_int = got_int;
-
-      /* Don't do mappings here, we put the character back in the
-       * typeahead buffer. */
-      ++no_mapping;
-      ++allow_keys;
-
-      /* Temporarily disable Recording. If Recording is active, the
-       * character will be recorded later, since it will be added to the
-       * typebuf after the loop */
-      save_Recording = Recording;
-      save_scriptout = scriptout;
-      Recording = FALSE;
-      scriptout = NULL;
-      c = safe_vgetc();
-      if (had_got_int && !global_busy)
-        got_int = FALSE;
-      --no_mapping;
-      --allow_keys;
-      Recording = save_Recording;
-      scriptout = save_scriptout;
-
-
-      /*
-       * Allow scrolling back in the messages.
-       * Also accept scroll-down commands when messages fill the screen,
-       * to avoid that typing one 'j' too many makes the messages
-       * disappear.
-       */
-      if (p_more && !p_cp) {
-        if (c == 'b' || c == 'k' || c == 'u' || c == 'g'
-            || c == K_UP || c == K_PAGEUP) {
-          if (msg_scrolled > Rows)
-            /* scroll back to show older messages */
-            do_more_prompt(c);
-          else {
-            msg_didout = FALSE;
-            c = K_IGNORE;
-            msg_col =
-              cmdmsg_rl ? Columns - 1 :
-              0;
-          }
-          if (quit_more) {
-            c = CAR;                            /* just pretend CR was hit */
-            quit_more = FALSE;
-            got_int = FALSE;
-          } else if (c != K_IGNORE) {
-            c = K_IGNORE;
-            hit_return_msg();
-          }
-        } else if (msg_scrolled > Rows - 2
-                   && (c == 'j' || c == 'd' || c == 'f'
-                       || c == K_DOWN || c == K_PAGEDOWN))
-          c = K_IGNORE;
-      }
-    } while ((had_got_int && c == Ctrl_C)
-             || c == K_IGNORE
-             || c == K_LEFTDRAG   || c == K_LEFTRELEASE
-             || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE
-             || c == K_RIGHTDRAG  || c == K_RIGHTRELEASE
-             || c == K_MOUSELEFT  || c == K_MOUSERIGHT
-             || c == K_MOUSEDOWN  || c == K_MOUSEUP
-             || (!mouse_has(MOUSE_RETURN)
-                 && mouse_row < msg_row
-                 && (c == K_LEFTMOUSE
-                     || c == K_MIDDLEMOUSE
-                     || c == K_RIGHTMOUSE
-                     || c == K_X1MOUSE
-                     || c == K_X2MOUSE))
-             );
-    ui_breakcheck();
-    /*
-     * Avoid that the mouse-up event causes visual mode to start.
-     */
-    if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE
-        || c == K_X1MOUSE || c == K_X2MOUSE)
-      (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0);
-    else if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) {
-      /* Put the character back in the typeahead buffer.  Don't use the
-       * stuff buffer, because lmaps wouldn't work. */
-      ins_char_typebuf(c);
-      do_redraw = TRUE;             /* need a redraw even though there is
-                                       typeahead */
-    }
-  }
-  redir_off = FALSE;
-
-  /*
-   * If the user hits ':', '?' or '/' we get a command line from the next
-   * line.
-   */
-  if (c == ':' || c == '?' || c == '/') {
-    if (!exmode_active)
-      cmdline_row = msg_row;
-    skip_redraw = TRUE;             /* skip redraw once */
-    do_redraw = FALSE;
-  }
-
-  /*
-   * If the window size changed set_shellsize() will redraw the screen.
-   * Otherwise the screen is only redrawn if 'redraw' is set and no ':'
-   * typed.
-   */
-  tmpState = State;
-  State = oldState;                 /* restore State before set_shellsize */
-  setmouse();
-  msg_check();
-
-#if defined(UNIX)
-  /*
-   * When switching screens, we need to output an extra newline on exit.
-   */
-  if (swapping_screen() && !termcap_active)
-    newline_on_exit = TRUE;
-#endif
-
-  need_wait_return = FALSE;
-  did_wait_return = TRUE;
-  emsg_on_display = FALSE;      /* can delete error message now */
-  lines_left = -1;              /* reset lines_left at next msg_start() */
-  reset_last_sourcing();
-  if (keep_msg != NULL && vim_strsize(keep_msg) >=
-      (Rows - cmdline_row - 1) * Columns + sc_col) {
-    free(keep_msg);
-    keep_msg = NULL;                /* don't redisplay message, it's too long */
-  }
-
-  if (tmpState == SETWSIZE) {       /* got resize event while in vgetc() */
-    starttermcap();                 /* start termcap before redrawing */
-    shell_resized();
-  } else if (!skip_redraw
-             && (redraw == TRUE || (msg_scrolled != 0 && redraw != -1))) {
-    starttermcap();                 /* start termcap before redrawing */
-    redraw_later(VALID);
-  }
-}
-
-/*
- * Write the hit-return prompt.
- */
-static void hit_return_msg(void)
-{
-  int save_p_more = p_more;
-
-  p_more = FALSE;       /* don't want see this message when scrolling back */
-  if (msg_didout)       /* start on a new line */
-    msg_putchar('\n');
-  if (got_int)
-    MSG_PUTS(_("Interrupt: "));
-
-  MSG_PUTS_ATTR(_("Press ENTER or type command to continue"), hl_attr(HLF_R));
-  if (!msg_use_printf())
-    msg_clr_eos();
-  p_more = save_p_more;
-}
-
-/*
- * Set "keep_msg" to "s".  Free the old value and check for NULL pointer.
- */
-void set_keep_msg(char_u *s, int attr)
-{
-  free(keep_msg);
-  if (s != NULL && msg_silent == 0)
-    keep_msg = vim_strsave(s);
-  else
-    keep_msg = NULL;
-  keep_msg_more = FALSE;
-  keep_msg_attr = attr;
-}
-
-/*
- * If there currently is a message being displayed, set "keep_msg" to it, so
- * that it will be displayed again after redraw.
- */
-void set_keep_msg_from_hist(void)
-{
-  if (keep_msg == NULL && last_msg_hist != NULL && msg_scrolled == 0
-      && (State & NORMAL))
-    set_keep_msg(last_msg_hist->msg, last_msg_hist->attr);
-}
-
-/*
- * Prepare for outputting characters in the command line.
- */
-void msg_start(void)
-{
-  int did_return = FALSE;
-
-  if (!msg_silent) {
-    free(keep_msg);
-    keep_msg = NULL;                    /* don't display old message now */
-  }
-
-  if (need_clr_eos) {
-    /* Halfway an ":echo" command and getting an (error) message: clear
-     * any text from the command. */
-    need_clr_eos = FALSE;
-    msg_clr_eos();
-  }
-
-  if (!msg_scroll && full_screen) {     /* overwrite last message */
-    msg_row = cmdline_row;
-    msg_col =
-      cmdmsg_rl ? Columns - 1 :
-      0;
-  } else if (msg_didout) {                /* start message on next line */
-    msg_putchar('\n');
-    did_return = TRUE;
-    if (exmode_active != EXMODE_NORMAL)
-      cmdline_row = msg_row;
-  }
-  if (!msg_didany || lines_left < 0)
-    msg_starthere();
-  if (msg_silent == 0) {
-    msg_didout = FALSE;                     /* no output on current line yet */
-    cursor_off();
-  }
-
-  /* when redirecting, may need to start a new line. */
-  if (!did_return)
-    redir_write((char_u *)"\n", -1);
-}
-
-/*
- * Note that the current msg position is where messages start.
- */
-void msg_starthere(void)
-{
-  lines_left = cmdline_row;
-  msg_didany = FALSE;
-}
-
-void msg_putchar(int c)
-{
-  msg_putchar_attr(c, 0);
-}
-
-void msg_putchar_attr(int c, int attr)
-{
-  char_u buf[MB_MAXBYTES + 1];
-
-  if (IS_SPECIAL(c)) {
-    buf[0] = K_SPECIAL;
-    buf[1] = K_SECOND(c);
-    buf[2] = K_THIRD(c);
-    buf[3] = NUL;
-  } else {
-    buf[(*mb_char2bytes)(c, buf)] = NUL;
-  }
-  msg_puts_attr(buf, attr);
-}
-
-void msg_outnum(long n)
-{
-  char_u buf[20];
-
-  sprintf((char *)buf, "%" PRId64, (int64_t)n);
-  msg_puts(buf);
-}
-
-void msg_home_replace(char_u *fname)
-{
-  msg_home_replace_attr(fname, 0);
-}
-
-void msg_home_replace_hl(char_u *fname)
-{
-  msg_home_replace_attr(fname, hl_attr(HLF_D));
-}
-
-static void msg_home_replace_attr(char_u *fname, int attr)
-{
-  char_u      *name;
-
-  name = home_replace_save(NULL, fname);
-  if (name != NULL)
-    msg_outtrans_attr(name, attr);
-  free(name);
-}
-
-/*
- * Output 'len' characters in 'str' (including NULs) with translation
- * if 'len' is -1, output upto a NUL character.
- * Use attri