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- /* vi:set ts=8 sts=4 sw=4:
- *
- * 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 "vim.h"
-
- #ifdef __QNX__
- # include <stdarg.h>
- #endif
-
- static void reset_last_sourcing __ARGS((void));
- static void add_msg_hist __ARGS((char_u *s, int len, int attr));
- static void hit_return_msg __ARGS((void));
- static void msg_home_replace_attr __ARGS((char_u *fname, int attr));
- #ifdef FEAT_MBYTE
- static char_u *screen_puts_mbyte __ARGS((char_u *s, int l, int attr));
- #endif
- static int msg_use_printf __ARGS((void));
- static void msg_screen_putchar __ARGS((int c, int attr));
- static int msg_check_screen __ARGS((void));
- static void redir_write __ARGS((char_u *s));
- #ifdef FEAT_CON_DIALOG
- static char_u *msg_show_console_dialog __ARGS((char_u *message, char_u *buttons, int dfltbutton));
- static int msg_noquit_more = FALSE; /* quit not allowed at more prompt */
- #endif
-
- 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 int msg_hist_off = FALSE; /* don't add messages to history */
-
- /*
- * 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.
- * 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(s)
- char_u *s;
- {
- return msg_attr_keep(s, 0, FALSE);
- }
-
- int
- msg_attr(s, attr)
- char_u *s;
- int attr;
- {
- return msg_attr_keep(s, attr, FALSE);
- }
-
- int
- msg_attr_keep(s, 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;
-
- #ifdef FEAT_EVAL
- if (attr == 0)
- set_vim_var_string(VV_STATUSMSG, s, -1);
- #endif
-
- /*
- * 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. */
- buf = msg_strtrunc(s);
- if (buf != NULL)
- s = buf;
-
- msg_start();
- msg_outtrans_attr(s, attr);
- if (msg_silent == 0)
- msg_clr_eos();
- retval = msg_end();
-
- if (keep && retval && vim_strsize(s) < (int)(Rows - cmdline_row - 1)
- * Columns + sc_col)
- {
- set_keep_msg(s);
- keep_msg_attr = 0;
- }
-
- vim_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(s)
- char_u *s;
- {
- 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)
- {
- len = vim_strsize(s);
- room = (int)(Rows - cmdline_row - 1) * Columns + sc_col - 1;
- if (len > room && room > 0)
- {
- #ifdef FEAT_MBYTE
- if (enc_utf8)
- /* may have up to 18 bytes per cell (6 per char, up to two
- * composing chars) */
- buf = alloc((room + 2) * 18);
- else if (enc_dbcs == DBCS_JPNU)
- /* may have up to 2 bytes per cell for euc-jp */
- buf = alloc((room + 2) * 2);
- else
- #endif
- buf = alloc(room + 2);
- if (buf != NULL)
- trunc_string(s, buf, room);
- }
- }
- return buf;
- }
-
- /*
- * Truncate a string "s" to "buf" with cell width "room".
- * "s" and "buf" may be equal.
- */
- void
- trunc_string(s, buf, room)
- char_u *s;
- char_u *buf;
- int room;
- {
- 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)
- {
- n = ptr2cells(s + e);
- if (len + n >= half)
- break;
- len += n;
- buf[e] = s[e];
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- for (n = (*mb_ptr2len_check)(s + e); --n > 0; )
- {
- ++e;
- buf[e] = s[e];
- }
- #endif
- }
-
- /* Last part: End of the string. */
- i = e;
- #ifdef FEAT_MBYTE
- 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_check)(s + i);
- }
- }
- else if (enc_utf8)
- {
- /* For UTF-8 we can go backwards easily. */
- i = (int)STRLEN(s);
- for (;;)
- {
- half = i - (*mb_head_off)(s, s + i - 1) - 1;
- n = ptr2cells(s + half);
- if (len + n > room)
- break;
- len += n;
- i = half;
- }
- }
- else
- #endif
- {
- for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i)
- len += n;
- }
-
- /* Set the middle and copy the last part. */
- mch_memmove(buf + e, "...", (size_t)3);
- mch_memmove(buf + e + 3, s + i, STRLEN(s + i) + 1);
- }
-
- /*
- * Automatic prototype generation does not understand this function.
- * Note: Caller of smgs() and smsg_attr() must check the resulting string is
- * shorter than IOSIZE!!!
- */
- #ifndef PROTO
- # ifndef __QNX__
-
- int
- #ifdef __BORLANDC__
- _RTLENTRYF
- #endif
- smsg __ARGS((char_u *, long, long, long,
- long, long, long, long, long, long, long));
- int
- #ifdef __BORLANDC__
- _RTLENTRYF
- #endif
- smsg_attr __ARGS((int, char_u *, long, long, long,
- long, long, long, long, long, long, long));
-
- /* VARARGS */
- int
- #ifdef __BORLANDC__
- _RTLENTRYF
- #endif
- smsg(s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)
- char_u *s;
- long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10;
- {
- return smsg_attr(0, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
- }
-
- /* VARARGS */
- int
- #ifdef __BORLANDC__
- _RTLENTRYF
- #endif
- smsg_attr(attr, s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)
- int attr;
- char_u *s;
- long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10;
- {
- sprintf((char *)IObuff, (char *)s, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
- return msg_attr(IObuff, attr);
- }
-
- # else /* __QNX__ */
-
- int
- smsg(char_u *s, ...)
- {
- va_list arglist;
-
- va_start(arglist, s);
- vsprintf((char *)IObuff, (char *)s, arglist);
- va_end(arglist);
- return msg(IObuff);
- }
-
- int
- smsg_attr(int attr, char_u *s, ...)
- {
- va_list arglist;
-
- va_start(arglist, s);
- vsprintf((char *)IObuff, (char *)s, arglist);
- va_end(arglist);
- return msg_attr(IObuff, attr);
- }
-
- # endif /* __QNX__ */
- #endif
-
- /*
- * 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;
- */
- static void
- reset_last_sourcing()
- {
- vim_free(last_sourcing_name);
- last_sourcing_name = NULL;
- last_sourcing_lnum = 0;
- }
-
- /*
- * 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(s)
- char_u *s;
- {
- char_u *Buf;
- int attr;
- int other_sourcing_name;
- char *p;
-
- /*
- * If "emsg_off" is set: no error messages at the moment.
- * If 'debug' is set: do error message anyway, but without side effects.
- * If "emsg_skip" is set: never do error messages.
- */
- if ((emsg_off > 0 && *p_debug == NUL)
- #ifdef FEAT_EVAL
- || emsg_skip > 0
- #endif
- )
- return TRUE;
-
- if (!emsg_off)
- {
- #ifdef FEAT_EVAL
- /* set "v:errmsg", also when using ":silent! cmd" */
- set_vim_var_string(VV_ERRMSG, s, -1);
- #endif
-
- /*
- * When using ":silent! cmd" ignore error messsages.
- * But do write it to the redirection file.
- */
- if (emsg_silent != 0)
- {
- redir_write(s);
- 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() */
-
- #ifdef VIMBUDDY
- if (sourcing_name == NULL)
- {
- VimBuddyText(s, 2);
- return TRUE;
- }
- #endif
- }
-
- 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)
- 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 */
-
- /*
- * First output name and line number of source of error message
- */
- if (sourcing_name != NULL)
- {
- if (last_sourcing_name != NULL)
- other_sourcing_name = STRCMP(sourcing_name, last_sourcing_name);
- else
- other_sourcing_name = TRUE;
- }
- else
- other_sourcing_name = FALSE;
-
- p = _("Error detected while processing %s:");
- if (sourcing_name != NULL
- && (other_sourcing_name || sourcing_lnum != last_sourcing_lnum)
- && (Buf = alloc((unsigned)(STRLEN(sourcing_name)
- + STRLEN(p)))) != NULL)
- {
- ++no_wait_return;
- if (other_sourcing_name)
- {
- sprintf((char *)Buf, p, sourcing_name);
- msg_attr(Buf, attr);
- }
- /* lnum is 0 when executing a command from the command line
- * argument, we don't want a line number then */
- if (sourcing_lnum != 0)
- {
- sprintf((char *)Buf, _("line %4ld:"), (long)sourcing_lnum);
- msg_attr(Buf, hl_attr(HLF_N));
- }
- --no_wait_return;
- last_sourcing_lnum = sourcing_lnum; /* only once for each line */
- vim_free(Buf);
- }
-
- /* remember the last sourcing name printed, also when it's empty */
- if (sourcing_name == NULL || other_sourcing_name)
- {
- vim_free(last_sourcing_name);
- if (sourcing_name == NULL)
- last_sourcing_name = NULL;
- else
- last_sourcing_name = vim_strsave(sourcing_name);
- }
- msg_nowait = FALSE; /* wait for this msg */
-
- return msg_attr(s, attr);
- }
-
- int
- emsg2(s, a1)
- char_u *s, *a1;
- {
- if ((emsg_off > 0 && *p_debug == NUL)
- #ifdef FEAT_EVAL
- || emsg_skip > 0
- #endif
- )
- return TRUE; /* no error messages at the moment */
-
- /* Check for NULL strings (just in case) */
- if (a1 == NULL)
- a1 = (char_u *)"[NULL]";
- /* Check for very long strings (can happen with ":help ^A<CR>").
- * Careful, the argument could actually be a long. */
- if (STRLEN(s) + (strstr((char *)s, "%s") != NULL ? STRLEN(a1) : 20)
- >= (size_t)IOSIZE)
- a1 = (char_u *)_("[string too long]");
- sprintf((char *)IObuff, (char *)s, (char *)a1);
- return emsg(IObuff);
- }
-
- int
- emsgn(s, n)
- char_u *s;
- long n;
- {
- if ((emsg_off > 0 && *p_debug == NUL)
- #ifdef FEAT_EVAL
- || emsg_skip > 0
- #endif
- )
- return TRUE; /* no error messages at the moment */
- sprintf((char *)IObuff, (char *)s, n);
- return emsg(IObuff);
- }
-
- /*
- * 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(s, force, 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(force, s)
- 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)
- {
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- {
- int size = vim_strsize(s);
-
- for (n = 0; size >= room; )
- {
- size -= (*mb_ptr2cells)(s + n);
- n += (*mb_ptr2len_check)(s + n);
- }
- --n;
- }
- #endif
- s += n;
- *s = '<';
- }
- return s;
- }
-
- static void
- add_msg_hist(s, len, attr)
- char_u *s;
- int len; /* -1 for undetermined length */
- int attr;
- {
- struct msg_hist *p;
-
- if (msg_hist_off)
- return;
-
- /* Don't let the message history get too big */
- while (msg_hist_len > 20)
- {
- p = first_msg_hist;
- first_msg_hist = p->next;
- vim_free(p->msg);
- vim_free(p);
- --msg_hist_len;
- }
- /* allocate an entry and add the message at the end of the history */
- p = (struct msg_hist *)alloc((int)sizeof(struct msg_hist));
- if (p != NULL)
- {
- 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;
- }
- }
-
- /*
- * ":messages" command.
- */
- /*ARGSUSED*/
- void
- ex_messages(eap)
- exarg_T *eap;
- {
- struct msg_hist *p;
- char_u *s;
-
- msg_hist_off = TRUE;
-
- s = mch_getenv((char_u *)"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; p = p->next)
- if (p->msg != NULL)
- msg_attr(p->msg, p->attr);
-
- msg_hist_off = FALSE;
- }
-
- #if defined(FEAT_CON_DIALOG) || defined(PROTO)
- static void msg_end_prompt __ARGS((void));
-
- /*
- * Call this after prompting the user. This will avoid a hit-return message
- * and a delay.
- */
- static void
- msg_end_prompt()
- {
- need_wait_return = FALSE;
- emsg_on_display = FALSE;
- cmdline_row = msg_row;
- msg_col = 0;
- msg_clr_eos();
- }
- #endif
-
- /*
- * 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(redraw)
- int redraw;
- {
- int c;
- int oldState;
- int tmpState;
-
- 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;
-
- /*
- * 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.
- * When inside vgetc(), we can't wait for a typed character at all.
- */
- if (vgetc_busy)
- return;
- if (no_wait_return)
- {
- need_wait_return = TRUE;
- if (!exmode_active)
- cmdline_row = msg_row;
- return;
- }
-
- redir_off = TRUE; /* don't redirect this message */
- oldState = State;
- if (quit_more)
- {
- c = CR; /* 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 = CR; /* no need for a return in ex mode */
- got_int = FALSE;
- }
- else
- {
- State = HITRETURN;
- #ifdef FEAT_MOUSE
- setmouse();
- #endif
- #ifdef USE_ON_FLY_SCROLL
- dont_scroll = TRUE; /* disallow scrolling here */
- #endif
- hit_return_msg();
-
- #ifdef ORG_HITRETURN
- do
- {
- c = safe_vgetc();
- } while (vim_strchr((char_u *)"\r\n: ", c) == NULL);
- if (c == ':') /* this can vi too (but not always!) */
- stuffcharReadbuff(c);
- #else
- do
- {
- c = safe_vgetc();
- if (!global_busy)
- got_int = FALSE;
- #ifdef FEAT_CLIPBOARD
- /* Strange way to allow copying (yanking) a modeless selection at
- * the hit-enter prompt. Use CTRL-Y, because the same is used in
- * Cmdline-mode and it's harmless when there is no selection. */
- if (c == Ctrl_Y && clip_star.state == SELECT_DONE)
- {
- clip_copy_modeless_selection(TRUE);
- c = K_IGNORE;
- }
- #endif
- } while (c == Ctrl_C || c == K_IGNORE
- #ifdef FEAT_GUI
- || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR
- #endif
- #ifdef FEAT_MOUSE
- || c == K_LEFTDRAG || c == K_LEFTRELEASE
- || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE
- || c == K_RIGHTDRAG || c == K_RIGHTRELEASE
- || c == K_MOUSEDOWN || c == K_MOUSEUP
- || (!mouse_has(MOUSE_RETURN)
- && (c == K_LEFTMOUSE
- || c == K_MIDDLEMOUSE
- || c == K_RIGHTMOUSE))
- #endif
- );
- ui_breakcheck();
- #ifdef FEAT_MOUSE
- /*
- * Avoid that the mouse-up event causes visual mode to start.
- */
- if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE)
- (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0);
- else
- #endif
- if (vim_strchr((char_u *)"\r\n ", c) == NULL)
- {
- stuffcharReadbuff(c);
- do_redraw = TRUE; /* need a redraw even though there is
- something in the stuff buffer */
- }
- #endif
- }
- 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 */
- #ifdef FEAT_MOUSE
- setmouse();
- #endif
- msg_check();
-
- /*
- * When switching screens, we need to output an extra newline on exit.
- */
- #if defined(UNIX) || defined(VMS)
- if (swapping_screen() && !termcap_active)
- newline_on_exit = TRUE;
- #endif
-
- need_wait_return = FALSE;
- 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)
- {
- vim_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()
- {
- if (msg_didout) /* start on a new line */
- msg_putchar('\n');
- if (got_int)
- MSG_PUTS(_("Interrupt: "));
-
- #ifdef ORG_HITRETURN
- MSG_PUTS_ATTR(_("Hit ENTER to continue"), hl_attr(HLF_R));
- #else
- MSG_PUTS_ATTR(_("Hit ENTER or type command to continue"), hl_attr(HLF_R));
- #endif
- if (!msg_use_printf())
- msg_clr_eos();
- }
-
- /*
- * Set "keep_msg" to "s". Free the old value and check for NULL pointer.
- */
- void
- set_keep_msg(s)
- char_u *s;
- {
- vim_free(keep_msg);
- if (s != NULL && msg_silent == 0)
- keep_msg = vim_strsave(s);
- else
- keep_msg = NULL;
- }
-
- /*
- * Prepare for outputting characters in the command line.
- */
- void
- msg_start()
- {
- int did_return = FALSE;
-
- vim_free(keep_msg);
- keep_msg = NULL; /* don't display old message now */
- if (!msg_scroll && full_screen) /* overwrite last message */
- {
- msg_row = cmdline_row;
- msg_col = 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();
- 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");
- }
-
- /*
- * Note that the current msg position is where messages start.
- */
- void
- msg_starthere()
- {
- lines_left = cmdline_row;
- msg_didany = FALSE;
- }
-
- void
- msg_putchar(c)
- int c;
- {
- msg_putchar_attr(c, 0);
- }
-
- void
- msg_putchar_attr(c, attr)
- int c;
- int attr;
- {
- char_u buf[4];
-
- if (IS_SPECIAL(c))
- {
- buf[0] = K_SPECIAL;
- buf[1] = K_SECOND(c);
- buf[2] = K_THIRD(c);
- buf[3] = NUL;
- }
- else
- {
- buf[0] = c;
- buf[1] = NUL;
- }
- msg_puts_attr(buf, attr);
- }
-
- void
- msg_outnum(n)
- long n;
- {
- char_u buf[20];
-
- sprintf((char *)buf, "%ld", n);
- msg_puts(buf);
- }
-
- void
- msg_home_replace(fname)
- char_u *fname;
- {
- msg_home_replace_attr(fname, 0);
- }
-
- #if defined(FEAT_FIND_ID) || defined(PROTO)
- void
- msg_home_replace_hl(fname)
- char_u *fname;
- {
- msg_home_replace_attr(fname, hl_attr(HLF_D));
- }
- #endif
-
- static void
- msg_home_replace_attr(fname, attr)
- char_u *fname;
- int attr;
- {
- char_u *name;
-
- name = home_replace_save(NULL, fname);
- if (name != NULL)
- msg_outtrans_attr(name, attr);
- vim_free(name);
- }
-
- /*
- * Output 'len' characters in 'str' (including NULs) with translation
- * if 'len' is -1, output upto a NUL character.
- * Use attributes 'attr'.
- * Return the number of characters it takes on the screen.
- */
- int
- msg_outtrans(str)
- char_u *str;
- {
- return msg_outtrans_attr(str, 0);
- }
-
- int
- msg_outtrans_attr(str, attr)
- char_u *str;
- int attr;
- {
- return msg_outtrans_len_attr(str, (int)STRLEN(str), attr);
- }
-
- int
- msg_outtrans_len(str, len)
- char_u *str;
- int len;
- {
- return msg_outtrans_len_attr(str, len, 0);
- }
-
- /*
- * Output one character at "p". Return pointer to the next character.
- * Handles multi-byte characters.
- */
- char_u *
- msg_outtrans_one(p, attr)
- char_u *p;
- int attr;
- {
- #ifdef FEAT_MBYTE
- int l;
-
- if (has_mbyte && (l = (*mb_ptr2len_check)(p)) > 1)
- {
- msg_outtrans_len_attr(p, l, attr);
- return p + l;
- }
- #endif
- msg_puts_attr(transchar(*p), attr);
- return p + 1;
- }
-
- int
- msg_outtrans_len_attr(str, len, attr)
- char_u *str;
- int len;
- int attr;
- {
- int retval = 0;
- char_u *s;
- #ifdef FEAT_MBYTE
- int n;
- int c;
- char_u buf[MB_MAXBYTES + 1];
- #endif
-
- /* if MSG_HIST flag set, add message to history */
- if (attr & MSG_HIST)
- {
- add_msg_hist(str, len, attr);
- attr &= ~MSG_HIST;
- }
-
- while (--len >= 0)
- {
- #ifdef FEAT_MBYTE
- /* check multibyte; print it directly if it's printable. */
- if (has_mbyte && (n = (*mb_ptr2len_check)(str)) > 1)
- {
- mch_memmove(buf, str, (size_t)n);
- buf[n] = NUL;
- c = (*mb_ptr2char)(buf);
- if (vim_isprintc(c))
- {
- msg_puts_attr(buf, attr);
- retval += (*mb_ptr2cells)(buf);
- }
- else
- {
- msg_puts_attr(transchar(c), attr == 0 ? hl_attr(HLF_8) : attr);
- retval += char2cells(c);
- }
- len -= n - 1;
- str += n;
- }
- else
- #endif
- {
- s = transchar(*str);
- if (attr == 0 && s[1] != NUL)
- msg_puts_attr(s, hl_attr(HLF_8)); /* unprintable char */
- else
- msg_puts_attr(s, attr);
- retval += ptr2cells(str);
- ++str;
- }
- }
- return retval;
- }
-
- #if defined(FEAT_QUICKFIX) || defined(PROTO)
- void
- msg_make(arg)
- char_u *arg;
- {
- int i;
- static char_u *str = (char_u *)"eeffoc", *rs = (char_u *)"Plon#dqg#vxjduB";
-
- arg = skipwhite(arg);
- for (i = 5; *arg && i >= 0; --i)
- if (*arg++ != str[i])
- break;
- if (i < 0)
- {
- msg_putchar('\n');
- for (i = 0; rs[i]; ++i)
- msg_putchar(rs[i] - 3);
- }
- }
- #endif
-
- /*
- * Output the string 'str' upto a NUL character.
- * Return the number of characters it takes on the screen.
- *
- * If K_SPECIAL is encountered, then it is taken in conjunction with the
- * following character and shown as <F1>, <S-Up> etc. Any other character
- * which is not printable shown in <> form.
- * If 'from' is TRUE (lhs of a mapping), a space is shown as <Space>.
- * If a character is displayed in one of these special ways, is also
- * highlighted (its highlight name is '8' in the p_hl variable).
- * Otherwise characters are not highlighted.
- * This function is used to show mappings, where we want to see how to type
- * the character/string -- webb
- */
- int
- msg_outtrans_special(str, from)
- char_u *str;
- int from; /* TRUE for lhs of a mapping */
- {
- int retval = 0;
- char_u *string;
- int attr;
- int len;
-
- attr = hl_attr(HLF_8);
- while (*str != NUL)
- {
- string = str2special(&str, from);
- len = vim_strsize(string);
- /* Highlight special keys */
- msg_puts_attr(string, len > 1
- #ifdef FEAT_MBYTE
- && (*mb_ptr2len_check)(string) <= 1
- #endif
- ? attr : 0);
- retval += len;
- }
- return retval;
- }
-
- /*
- * Return the printable string for the key codes at "*sp".
- * Used for translating the lhs or rhs of a mapping to printable chars.
- * Advances "sp" to the next code.
- */
- char_u *
- str2special(sp, from)
- char_u **sp;
- int from; /* TRUE for lhs of mapping */
- {
- int c;
- static char_u buf[7];
- char_u *str = *sp;
- int modifiers = 0;
- int special = FALSE;
-
- #ifdef FEAT_MBYTE
- if (has_mbyte)
- {
- char_u *p;
-
- /* Try to un-escape a multi-byte character. Return the un-escaped
- * string if it is a multi-byte character. */
- p = mb_unescape(sp);
- if (p != NULL)
- return p;
- }
- #endif
-
- c = *str;
- if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL)
- {
- if (str[1] == KS_MODIFIER)
- {
- modifiers = str[2];
- str += 3;
- c = *str;
- }
- if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL)
- {
- c = TO_SPECIAL(str[1], str[2]);
- str += 2;
- if (c == K_ZERO) /* display <Nul> as ^@ */
- c = NUL;
- }
- if (IS_SPECIAL(c) || modifiers) /* special key */
- special = TRUE;
- }
- *sp = str + 1;
-
- #ifdef FEAT_MBYTE
- /* For multi-byte characters check for an illegal byte. */
- if (has_mbyte && MB_BYTE2LEN(*str) > (*mb_ptr2len_check)(str))
- {
- transchar_nonprint(buf, c);
- return buf;
- }
- #endif
-
- /* Make unprintable characters in <> form, also <M-Space> and <Tab>.
- * Use <Space> only for lhs of a mapping. */
- if (special || char2cells(c) > 1 || (from && c == ' '))
- return get_special_key_name(c, modifiers);
- buf[0] = c;
- buf[1] = NUL;
- return buf;
- }
-
- /*
- * Translate a key sequence into special key names.
- */
- void
- str2specialbuf(sp, buf, len)
- char_u *sp;
- char_u *buf;
- int len;
- {
- char_u *s;
-
- *buf = NUL;
- while (*sp)
- {
- s = str2special(&sp, FALSE);
- if ((int)(STRLEN(s) + STRLEN(buf)) < len)
- STRCAT(buf, s);
- }
- }
-
- /*
- * print line for :print or :list command
- */
- void
- msg_prt_line(s)
- char_u *s;
- {
- int c;
- int col = 0;
- int n_extra = 0;
- int c_extra = 0;
- char_u *p_extra = NULL; /* init to make SASC shut up */
- int n;
- int attr= 0;
- char_u *trail = NULL;
- #ifdef FEAT_MBYTE
- int l;
- char_u buf[MB_MAXBYTES + 1];
- #endif
-
- /* find start of trailing whitespace */
- if (curwin->w_p_list && lcs_trail)
- {
- trail = s + STRLEN(s);
- while (trail > s && vim_iswhite(trail[-1]))
- --trail;
- }
-
- /* output a space for an empty line, otherwise the line will be
- * overwritten */
- if (*s == NUL && !curwin->w_p_list)
- msg_putchar(' ');
-
- for (;;)
- {
- if (n_extra)
- {
- --n_extra;
- if (c_extra)
- c = c_extra;
- else
- c = *p_extra++;
- }
- #ifdef FEAT_MBYTE
- else if (has_mbyte && (l = (*mb_ptr2len_check)(s)) > 1)
- {
- col += (*mb_ptr2cells)(s);
- mch_memmove(buf, s, (size_t)l);
- buf[l] = NUL;
- msg_puts_attr(buf, attr);
- s += l;
- continue;
- }
- #endif
- else
- {
- attr = 0;
- c = *s++;
- if (c == TAB && (!curwin->w_p_list || lcs_tab1))
- {
- /* tab amount depends on current column */
- n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1;
- if (!curwin->w_p_list)
- {
- c = ' ';
- c_extra = ' ';
- }
- else
- {
- c = lcs_tab1;
- c_extra = lcs_tab2;
- attr = hl_attr(HLF_8);
- }
- }
- else if (c == NUL && curwin->w_p_list && lcs_eol)
- {
- p_extra = (char_u *)"";
- c_extra = NUL;
- n_extra = 1;
- c = lcs_eol;
- attr = hl_attr(HLF_AT);
- --s;
- }
- else if (c != NUL && (n = byte2cells(c)) > 1)
- {
- n_extra = n - 1;
- p_extra = transchar(c);
- c_extra = NUL;
- c = *p_extra++;
- }
- else if (c == ' ' && trail != NULL && s > trail)
- {
- c = lcs_trail;
- attr = hl_attr(HLF_8);
- }
- }
-
- if (c == NUL)
- break;
-
- msg_putchar_attr(c, attr);
- col++;
- }
- msg_clr_eos();
- }
-
- #ifdef FEAT_MBYTE
- /*
- * Use screen_puts() to output one multi-byte character.
- * Return the pointer "s" advanced to the next character.
- */
- static char_u *
- screen_puts_mbyte(s, l, attr)
- char_u *s;
- int l;
- int attr;
- {
- int cw;
- char_u buf[MB_MAXBYTES + 1];
-
- msg_didout = TRUE; /* remember that line is not empty */
- cw = (*mb_ptr2cells)(s);
- if (cw > 1 && msg_col == Columns - 1)
- {
- /* Doesn't fit, print a highlighted '>' to fill it up. */
- msg_screen_putchar('>', hl_attr(HLF_AT));
- return s;
- }
-
- mch_memmove(buf, s, (size_t)l);
- buf[l] = NUL;
- screen_puts(buf, msg_row, msg_col, attr);
- if ((msg_col += cw) >= Columns)
- {
- msg_col = 0;
- ++msg_row;
- }
- return s + l;
- }
- #endif
-
- /*
- * Output a string to the screen at position msg_row, msg_col.
- * Update msg_row and msg_col for the next message.
- */
- void
- msg_puts(s)
- char_u *s;
- {
- msg_puts_attr(s, 0);
- }
-
- void
- msg_puts_title(s)
- char_u *s;
- {
- msg_puts_attr(s, hl_attr(HLF_T));
- }
-
- #if defined(FEAT_CSCOPE) || defined(PROTO)
- /*
- * if printing a string will exceed the screen width, print "..." in the
- * middle.
- */
- void
- msg_puts_long(longstr)
- char_u *longstr;
- {
- msg_puts_long_len_attr(longstr, (int)strlen((char *)longstr), 0);
- }
- #endif
-
- /*
- * Show a message in such a way that it always fits in the line. Cut out a
- * part in the middle and replace it with "..." when necessary.
- */
- void
- msg_puts_long_attr(longstr, attr)
- char_u *longstr;
- int attr;
- {
- msg_puts_long_len_attr(longstr, (int)strlen((char *)longstr), attr);
- }
-
- void
- msg_puts_long_len_attr(longstr, len, attr)
- char_u *longstr;
- int len;
- int attr;
- {
- int slen = len;
- int room;
-
- room = Columns - msg_col;
- if (len > room && room >= 20)
- {
- slen = (room - 3) / 2;
- msg_outtrans_len_attr(longstr, slen, attr);
- msg_puts_attr((char_u *)"...", hl_attr(HLF_8));
- }
- msg_outtrans_len_attr(longstr + len - slen, slen, attr);
- }
-
- /*
- * Basic function for writing a message with highlight attributes.
- */
- void
- msg_puts_attr(s, attr)
- char_u *s;
- int attr;
- {
- int oldState;
- char_u *p;
- char_u buf[4];
- #ifdef FEAT_MBYTE
- int l;
- #endif
- int c;
-
- /*
- * If redirection is on, also write to the redirection file.
- */
- redir_write(s);
-
- /*
- * Don't print anything when using ":silent cmd".
- */
- if (msg_silent != 0)
- return;
-
- /* if MSG_HIST flag set, add message to history */
- if (attr & MSG_HIST)
- {
- add_msg_hist(s, -1, attr);
- attr &= ~MSG_HIST;
- }
-
- /*
- * When writing something to the screen after it has scrolled, requires a
- * wait-return prompt later. Needed when scrolling, resetting
- * need_wait_return after some prompt, and then outputting something
- * without scrolling
- */
- if (msg_scrolled && !msg_scrolled_ign)
- need_wait_return = TRUE;
-
- /*
- * If there is no valid screen, use fprintf so we can see error messages.
- * If termcap is not active, we may be writing in an alternate console
- * window, cursor positioning may not work correctly (window size may be
- * different, e.g. for Win32 console) or we just don't know where the
- * cursor is.
- */
- if (msg_use_printf())
- {
- #ifdef WIN3264
- if (!silent_mode)
- mch_settmode(TMODE_COOK); /* handle '\r' and '\n' correctly */
- #endif
- while (*s)
- {
- if (!silent_mode)
- {
- p = &buf[0];
- /* NL --> CR NL translation (for Unix) */
- /* NL --> CR translation (for Mac) */
- if (*s == '\n')
- *p++ = '\r';
- #ifdef USE_CR
- else
- #endif
- *p++ = *s;
- *p = '\0';
- mch_errmsg((char *)buf);
- }
-
- /* primitive way to compute the current column */
- if (*s == '\r' || *s == '\n')
- msg_col = 0;
- else
- ++msg_col;
- ++s;
- }
- msg_didout = TRUE; /* assume that line is not empty */
-
- #ifdef WIN3264
- if (!silent_mode)
- mch_settmode(TMODE_RAW);
- #endif
- return;
- }
-
- msg_didany = TRUE; /* remember that something was outputted */
- while (*s)
- {
- /*
- * The screen is scrolled up when:
- * - When outputting a newline in the last row
- * - when outputting a character in the last column of the last row
- * (some terminals scroll automatically, some don't. To avoid
- * problems we scroll ourselves)
- */
- if (msg_row >= Rows - 1
- && (*s == '\n'
- || msg_col >= Columns - 1
- || (*s == TAB && msg_col >= ((Columns - 1) & ~7))
- #ifdef FEAT_MBYTE
- || (has_mbyte && (*mb_ptr2cells)(s) > 1
- && msg_col >= Columns - 2)
- #endif
- ))
- {
- /* When no more prompt an no more room, truncate here */
- if (msg_no_more && lines_left == 0)
- break;
- #ifdef FEAT_GUI
- /* Remove the cursor before scrolling, ScreenLines[] is going to
- * become invalid. */
- if (gui.in_use)
- gui_undraw_cursor();
- #endif
- /* scrolling up always works */
- screen_del_lines(0, 0, 1, (int)Rows, TRUE, NULL);
-
- if (!can_clear((char_u *)" "))
- {
- /* Scrolling up doesn't result in the right background. Set
- * the background here. It's not efficient, but avoids that
- * we have to do it all over the code. */
- screen_fill((int)Rows - 1, (int)Rows, 0,
- (int)Columns, ' ', ' ', 0);
-
- /* Also clear the last char of the last but one line if it was
- * not cleared before to avoid a scroll-up. */
- if (ScreenAttrs[LineOffset[Rows - 2] + Columns - 1]
- == (sattr_T)-1)
- screen_fill((int)Rows - 2, (int)Rows - 1,
- (int)Columns - 1, (int)Columns, ' ', ' ', 0);
- }
-
- msg_row = Rows - 2;
- if (msg_col >= Columns) /* can happen after screen resize */
- msg_col = Columns - 1;
-
- ++msg_scrolled;
- need_wait_return = TRUE; /* may need wait_return in main() */
- if (must_redraw < VALID)
- must_redraw = VALID;
- redraw_cmdline = TRUE;
- if (cmdline_row > 0 && !exmode_active)
- --cmdline_row;
-
- /*
- * if screen is completely filled wait for a character
- */
- if (p_more && --lines_left == 0 && State != HITRETURN
- && !msg_no_more && !exmode_active)
- {
- oldState = State;
- State = ASKMORE;
- #ifdef FEAT_MOUSE
- setmouse();
- #endif
- msg_moremsg(FALSE);
- for (;;)
- {
- /*
- * Get a typed character directly from the user.
- */
- c = get_keystroke();
-
- #if defined(FEAT_MENU) && defined(FEAT_GUI)
- if (c == K_MENU)
- {
- int idx = get_menu_index(current_menu, ASKMORE);
-
- /* Used a menu. If it starts with CTRL-Y, it must
- * be a "Copy" for the clipboard. Otherwise
- * assume that we end */
- if (idx == MENU_INDEX_INVALID)
- continue;
- c = *current_menu->strings[idx];
- if (c != NUL && current_menu->strings[idx][1] != NUL)
- ins_typebuf(current_menu->strings[idx] + 1,
- current_menu->noremap[idx], 0, TRUE,
- current_menu->silent[idx]);
- }
- #endif
-
- switch (c)
- {
- case BS:
- case 'k':
- case K_UP:
- if (!more_back_used)
- {
- msg_moremsg(TRUE);
- continue;
- }
- more_back = 1;
- lines_left = 1;
- break;
- case CR: /* one extra line */
- case NL:
- case 'j':
- case K_DOWN:
- lines_left = 1;
- break;
- case ':': /* start new command line */
- /* Since got_int is set all typeahead will be flushed,
- * but we want to keep this ':', remember that in a
- * special way. */
- typeahead_noflush(':');
- cmdline_row = Rows - 1; /* put ':' on this line */
- skip_redraw = TRUE; /* skip redraw once */
- need_wait_return = FALSE; /* don't wait in main() */
- /*FALLTHROUGH*/
- case 'q': /* quit */
- case Ctrl_C:
- case ESC:
- #ifdef FEAT_CON_DIALOG
- if (msg_noquit_more)
- {
- /* When quitting is not possible, behave like
- * another page can be printed */
- lines_left = Rows - 1;
- }
- else
- #endif
- {
- got_int = TRUE;
- quit_more = TRUE;
- }
- break;
- case 'u': /* Up half a page */
- case K_PAGEUP:
- if (!more_back_used)
- {
- msg_moremsg(TRUE);
- continue;
- }
- more_back = Rows / 2;
- /*FALLTHROUGH*/
- case 'd': /* Down half a page */
- lines_left = Rows / 2;
- break;
- case 'b': /* one page back */
- if (!more_back_used)
- {
- msg_moremsg(TRUE);
- continue;
- }
- more_back = Rows - 1;
- /*FALLTHROUGH*/
- case ' ': /* one extra page */
- case K_PAGEDOWN:
- lines_left = Rows - 1;
- break;
-
- #ifdef FEAT_CLIPBOARD
- case Ctrl_Y:
- /* Strange way to allow copying (yanking) a modeless
- * selection at the more prompt. Use CTRL-Y,
- * because the same is used in Cmdline-mode and at the
- * hit-enter prompt. However, scrolling one line up
- * might be expected... */
- if (clip_star.state == SELECT_DONE)
- clip_copy_modeless_selection(TRUE);
- continue;
- #endif
- default: /* no valid response */
- msg_moremsg(TRUE);
- continue;
- }
- break;
- }
-
- /* clear the --more-- message */
- screen_fill((int)Rows - 1, (int)Rows,
- 0, (int)Columns, ' ', ' ', 0);
- State = oldState;
- #ifdef FEAT_MOUSE
- setmouse();
- #endif
- if (quit_more)
- {
- msg_row = Rows - 1;
- msg_col = 0;
- return; /* the string is not displayed! */
- }
- }
- }
- if (*s == '\n') /* go to next line */
- {
- msg_didout = FALSE; /* remember that line is empty */
- msg_col = 0;
- if (++msg_row >= Rows) /* safety check */
- msg_row = Rows - 1;
- }
- else if (*s == '\r') /* go to column 0 */
- {
- msg_col = 0;
- }
- else if (*s == '\b') /* go to previous char */
- {
- if (msg_col)
- --msg_col;
- }
- else if (*s == TAB) /* translate into spaces */
- {
- do
- msg_screen_putchar(' ', attr);
- while (msg_col & 7);
- }
- #ifdef FEAT_MBYTE
- else if (has_mbyte && (l = (*mb_ptr2len_check)(s)) > 1)
- s = screen_puts_mbyte(s, l, attr) - 1;
- #endif
- else
- msg_screen_putchar(*s, attr);
- ++s;
- }
- msg_check();
- }
-
- /*
- * Returns TRUE when messages should be printed with mch_errmsg().
- * This is used when there is no valid screen, so we can see error messages.
- * If termcap is not active, we may be writing in an alternate console
- * window, cursor positioning may not work correctly (window size may be
- * different, e.g. for Win32 console) or we just don't know where the
- * cursor is.
- */
- static int
- msg_use_printf()
- {
- return (!msg_check_screen()
- #if defined(WIN3264) && !defined(FEAT_GUI_MSWIN)
- || !termcap_active
- #endif
- || (swapping_screen() && !termcap_active)
- );
- }
-
- #if defined(USE_MCH_ERRMSG) || defined(PROTO)
-
- #ifdef mch_errmsg
- # undef mch_errmsg
- #endif
- #ifdef mch_msg
- # undef mch_msg
- #endif
-
- /*
- * collect error messages until the GUI has started and they can be
- * displayed in a message box.
- */
- void
- mch_errmsg(str)
- char *str;
- {
- int len;
-
- #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI)
- /* On Unix use stderr if it's a tty.
- * When not going to start the GUI also use stderr. */
- if (
- # ifdef UNIX
- isatty(2)
- # ifdef FEAT_GUI
- ||
- # endif
- # endif
- # ifdef FEAT_GUI
- !(gui.in_use || gui.starting)
- # endif
- )
- {
- fprintf(stderr, "%s", str);
- return;
- }
- #endif
-
- /* avoid a delay for a message that isn't there */
- emsg_on_display = FALSE;
-
- len = (int)STRLEN(str) + 1;
- if (error_ga.ga_growsize == 0)
- {
- error_ga.ga_growsize = 80;
- error_ga.ga_itemsize = 1;
- }
- if (ga_grow(&error_ga, len) == OK)
- {
- mch_memmove((char_u *)error_ga.ga_data + error_ga.ga_len,
- (char_u *)str, len);
- #ifdef UNIX
- /* remove CR characters, they are displayed */
- {
- char_u *p;
-
- p = (char_u *)error_ga.ga_data + error_ga.ga_len;
- for (;;)
- {
- p = vim_strchr(p, '\r');
- if (p == NULL)
- break;
- *p = ' ';
- }
- }
- #endif
- --len; /* don't count the NUL at the end */
- error_ga.ga_len += len;
- error_ga.ga_room -= len;
- }
- }
-
- void
- mch_msg(str)
- char *str;
- {
- #if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI)
- /* On Unix use stdout if we have a tty. This allows "vim -h | more" and
- * uses mch_errmsg() when started from the desktop.
- * When not going to start the GUI also use stdout. */
- if (
- # ifdef UNIX
- isatty(2)
- # ifdef FEAT_GUI
- ||
- # endif
- # endif
- # ifdef FEAT_GUI
- !(gui.in_use || gui.starting)
- # endif
- )
- {
- printf("%s", str);
- return;
- }
- # endif
- mch_errmsg(str);
- }
- #endif /* USE_MCH_ERRMSG */
-
- static void
- msg_screen_putchar(c, attr)
- int c;
- int attr;
- {
- msg_didout = TRUE; /* remember that line is not empty */
- screen_putchar(c, msg_row, msg_col, attr);
- if (++msg_col >= Columns)
- {
- msg_col = 0;
- ++msg_row;
- }
- }
-
- void
- msg_moremsg(full)
- int full;
- {
- int attr;
-
- attr = hl_attr(HLF_M);
- screen_puts((char_u *)_("-- More --"), (int)Rows - 1, 0, attr);
- if (full)
- screen_puts(more_back_used
- ? (char_u *)_(" (RET/BS: line, SPACE/b: page, d/u: half page, q: quit)")
- : (char_u *)_(" (RET: line, SPACE: page, d: half page, q: quit)"),
- (int)Rows - 1, 10, attr);
- }
-
- /*
- * Repeat the message for the current mode: ASKMORE, EXTERNCMD, CONFIRM or
- * exmode_active.
- */
- void
- repeat_message()
- {
- if (State == ASKMORE)
- {
- msg_moremsg(TRUE); /* display --more-- message again */
- msg_row = Rows - 1;
- }
- #ifdef FEAT_CON_DIALOG
- else if (State == CONFIRM)
- {
- display_confirm_msg(); /* display ":confirm" message again */
- msg_row = Rows - 1;
- }
- #endif
- else if (State == EXTERNCMD)
- {
- windgoto(msg_row, msg_col); /* put cursor back */
- }
- else if (State == HITRETURN || State == SETWSIZE)
- {
- hit_return_msg();
- msg_row = Rows - 1;
- }
- }
-
- /*
- * msg_check_screen - check if the screen is initialized.
- * Also check msg_row and msg_col, if they are too big it may cause a crash.
- * While starting the GUI the terminal codes will be set for the GUI, but the
- * output goes to the terminal. Don't use the terminal codes then.
- */
- static int
- msg_check_screen()
- {
- if (!full_screen || !screen_valid(FALSE))
- return FALSE;
-
- if (msg_row >= Rows)
- msg_row = Rows - 1;
- if (msg_col >= Columns)
- msg_col = Columns - 1;
- return TRUE;
- }
-
- /*
- * Clear from current message position to end of screen.
- * Note: msg_col is not updated, so we remember the end of the message
- * for msg_check().
- */
- void
- msg_clr_eos()
- {
- if (msg_use_printf())
- {
- if (full_screen) /* only when termcap codes are valid */
- {
- if (*T_CD)
- out_str(T_CD); /* clear to end of display */
- else if (*T_CE)
- out_str(T_CE); /* clear to end of line */
- }
- }
- else
- {
- screen_fill(msg_row, msg_row + 1, msg_col, (int)Columns, ' ', ' ', 0);
- screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0);
- }
- }
-
- /*
- * Clear the command line.
- */
- void
- msg_clr_cmdline()
- {
- msg_row = cmdline_row;
- msg_col = 0;
- msg_clr_eos();
- }
-
- /*
- * end putting a message on the screen
- * call wait_return if the message does not fit in the available space
- * return TRUE if wait_return not called.
- */
- int
- msg_end()
- {
- /*
- * if the string is larger than the window,
- * or the ruler option is set and we run into it,
- * we have to redraw the window.
- * Do not do this if we are abandoning the file or editing the command line.
- */
- if (!exiting && need_wait_return && !(State & CMDLINE))
- {
- wait_return(FALSE);
- return FALSE;
- }
- out_flush();
- return TRUE;
- }
-
- /*
- * If the written message runs into the shown command or ruler, we have to
- * wait for hit-return and redraw the window later.
- */
- void
- msg_check()
- {
- if (msg_row == Rows - 1 && msg_col >= sc_col)
- {
- need_wait_return = TRUE;
- redraw_cmdline = TRUE;
- }
- }
-
- /*
- * May write a string to the redirection file.
- */
- static void
- redir_write(s)
- char_u *s;
- {
- static int cur_col = 0;
-
- if ((redir_fd != NULL
- #ifdef FEAT_EVAL
- || redir_reg
- #endif
- ) && !redir_off)
- {
- /* If the string doesn't start with CR or NL, go to msg_col */
- if (*s != '\n' && *s != '\r')
- {
- while (cur_col < msg_col)
- {
- #ifdef FEAT_EVAL
- if (redir_reg)
- write_reg_contents(redir_reg, (char_u *)" ", TRUE);
- else if (redir_fd)
- #endif
- fputs(" ", redir_fd);
- ++cur_col;
- }
- }
-
- #ifdef FEAT_EVAL
- if (redir_reg)
- write_reg_contents(redir_reg, s, TRUE);
- else if (redir_fd)
- #endif
- fputs((char *)s, redir_fd);
-
- /* Adjust the current column */
- while (*s)
- {
- if (*s == '\r' || *s == '\n')
- cur_col = 0;
- else if (*s == '\t')
- cur_col += (8 - cur_col % 8);
- else
- ++cur_col;
- ++s;
- }
- }
- }
-
- /*
- * Give a warning message (for searching).
- * Use 'w' highlighting and may repeat the message after redrawing
- */
- void
- give_warning(message, hl)
- char_u *message;
- int hl;
- {
- /* Don't do this for ":silent". */
- if (msg_silent != 0)
- return;
-
- #ifdef FEAT_EVAL
- set_vim_var_string(VV_WARNINGMSG, message, -1);
- #endif
- #ifdef VIMBUDDY
- VimBuddyText(message, 1);
- #else
- vim_free(keep_msg);
- keep_msg = NULL;
- if (hl)
- keep_msg_attr = hl_attr(HLF_W);
- else
- keep_msg_attr = 0;
- if (msg_attr(message, keep_msg_attr) && msg_scrolled == 0)
- set_keep_msg(message);
- msg_didout = FALSE; /* overwrite this message */
- msg_nowait = TRUE; /* don't wait for this message */
- msg_col = 0;
- #endif
- }
-
- /*
- * Advance msg cursor to column "col".
- */
- void
- msg_advance(col)
- int col;
- {
- if (msg_silent != 0) /* nothing to advance to */
- {
- msg_putchar(' '); /* insert something for redirection */
- return;
- }
- if (col >= Columns) /* not enough room */
- col = Columns - 1;
- while (msg_col < col)
- msg_putchar(' ');
- }
-
- #if defined(FEAT_CON_DIALOG) || defined(PROTO)
- /*
- * Used for "confirm()" function, and the :confirm command prefix.
- * Versions which haven't got flexible dialogs yet, and console
- * versions, get this generic handler which uses the command line.
- *
- * type = one of:
- * VIM_QUESTION, VIM_INFO, VIM_WARNING, VIM_ERROR or VIM_GENERIC
- * title = title string (can be NULL for default)
- * (neither used in console dialogs at the moment)
- *
- * Format of the "buttons" string:
- * "Button1Name\nButton2Name\nButton3Name"
- * The first button should normally be the default/accept
- * The second button should be the 'Cancel' button
- * Other buttons- use your imagination!
- * A '&' in a button name becomes a shortcut, so each '&' should be before a
- * different letter.
- */
- /* ARGSUSED */
- int
- do_dialog(type, title, message, buttons, dfltbutton, textfield)
- int type;
- char_u *title;
- char_u *message;
- char_u *buttons;
- int dfltbutton;
- char_u *textfield; /* IObuff for inputdialog(), NULL otherwise */
- {
- int oldState;
- int retval = 0;
- char_u *hotkeys;
- int c;
-
- #ifndef NO_CONSOLE
- /* Don't output anything in silent mode ("ex -s") */
- if (silent_mode)
- return dfltbutton; /* return default option */
- #endif
-
- #ifdef FEAT_GUI_DIALOG
- /* When GUI is running, use the GUI dialog */
- if (gui.in_use)
- {
- c = gui_mch_dialog(type, title, message, buttons, dfltbutton,
- textfield);
- msg_end_prompt();
- return c;
- }
- #endif
-
- oldState = State;
- State = CONFIRM;
- #ifdef FEAT_MOUSE
- setmouse();
- #endif
-
- /*
- * Since we wait for a keypress, don't make the
- * user press RETURN as well afterwards.
- */
- ++no_wait_return;
- hotkeys = msg_show_console_dialog(message, buttons, dfltbutton);
-
- if (hotkeys != NULL)
- {
- for (;;)
- {
- /* Get a typed character directly from the user. */
- c = get_keystroke();
- switch (c)
- {
- case CR: /* User accepts default option */
- case NL:
- retval = dfltbutton;
- break;
- case Ctrl_C: /* User aborts/cancels */
- case ESC:
- retval = 0;
- break;
- default: /* Could be a hotkey? */
- if (c > 255) /* special keys are ignored here */
- continue;
- for (retval = 0; hotkeys[retval]; retval++)
- {
- if (hotkeys[retval] == TO_LOWER(c))
- break;
- }
- if (hotkeys[retval])
- {
- retval++;
- break;
- }
- /* No hotkey match, so keep waiting */
- continue;
- }
- break;
- }
-
- vim_free(hotkeys);
- }
-
- State = oldState;
- #ifdef FEAT_MOUSE
- setmouse();
- #endif
- --no_wait_return;
- msg_end_prompt();
-
- return retval;
- }
-
- char_u *confirm_msg = NULL; /* ":confirm" message */
-
- /*
- * Format the dialog string, and display it at the bottom of
- * the screen. Return a string of hotkey chars (if defined) for
- * each 'button'. If a button has no hotkey defined, the string
- * has the buttons first letter.
- *
- * Returns allocated array, or NULL for error.
- *
- */
- static char_u *
- msg_show_console_dialog(message, buttons, dfltbutton)
- char_u *message;
- char_u *buttons;
- int dfltbutton;
- {
- int len = 0;
- int lenhotkey = 1; /*first button*/
- char_u *hotk;
- char_u *p;
- char_u *q;
- char_u *r;
-
- /*
- * First compute how long a string we need to allocate for the message.
- */
- r = buttons;
- while (*r)
- {
- if (*r == DLG_BUTTON_SEP)
- {
- len++; /* '\n' -> ', ' */
- lenhotkey++; /* each button needs a hotkey */
- }
- else if (*r == DLG_HOTKEY_CHAR)
- {
- len++; /* '&a' -> '[a]' */
- }
- r++;
- }
-
- len += STRLEN(message)
- + 2 /* for the NL's */
- + STRLEN(buttons)
- + 3; /* for the ": " and NUL */
-
- lenhotkey++; /* for the NUL */
-
- /*
- * Now allocate and load the strings
- */
- vim_free(confirm_msg);
- confirm_msg = alloc(len);
- if (confirm_msg == NULL)
- return NULL;
- *confirm_msg = NUL;
- hotk = alloc(lenhotkey);
- if (hotk == NULL)
- return NULL;
-
- *confirm_msg = '\n';
- STRCPY(confirm_msg + 1, message);
-
- p = confirm_msg + 1 + STRLEN(message);
- q = hotk;
- r = buttons;
- *q = (char_u)TO_LOWER(*r); /* define lowercase hotkey */
-
- *p++ = '\n';
-
- while (*r)
- {
- if (*r == DLG_BUTTON_SEP)
- {
- *p++ = ',';
- *p++ = ' '; /* '\n' -> ', ' */
- *(++q) = (char_u)TO_LOWER(*(r + 1)); /* next hotkey */
- if (dfltbutton)
- --dfltbutton;
- }
- else if (*r == DLG_HOTKEY_CHAR)
- {
- r++;
- if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */
- *p++ = *r;
- else
- {
- /* '&a' -> '[a]' */
- *p++ = (dfltbutton == 1) ? '[' : '(';
- *p++ = *r;
- *p++ = (dfltbutton == 1) ? ']' : ')';
- *q = (char_u)TO_LOWER(*r); /* define lowercase hotkey */
- }
- }
- else
- {
- *p++ = *r; /* everything else copy literally */
- }
- r++;
- }
- *p++ = ':';
- *p++ = ' ';
- *p = NUL;
- *(++q) = NUL;
-
- display_confirm_msg();
- return hotk;
- }
-
- /*
- * Display the ":confirm" message. Also called when screen resized.
- */
- void
- display_confirm_msg()
- {
- /* avoid that 'q' at the more prompt truncates the message here */
- ++msg_noquit_more;
- if (confirm_msg != NULL)
- msg_puts_attr(confirm_msg, hl_attr(HLF_M));
- --msg_noquit_more;
- }
-
- #endif /* FEAT_CON_DIALOG */
-
- #if defined(FEAT_CON_DIALOG) || defined(FEAT_GUI_DIALOG)
-
- int
- vim_dialog_yesno(type, title, message, dflt)
- int type;
- char_u *title;
- char_u *message;
- int dflt;
- {
- if (do_dialog(type,
- title == NULL ? (char_u *)_("Question") : title,
- message,
- (char_u *)_("&Yes\n&No"), dflt, NULL) == 1)
- return VIM_YES;
- return VIM_NO;
- }
-
- int
- vim_dialog_yesnocancel(type, title, message, dflt)
- int type;
- char_u *title;
- char_u *message;
- int dflt;
- {
- switch (do_dialog(type,
- title == NULL ? (char_u *)_("Question") : title,
- message,
- (char_u *)_("&Yes\n&No\n&Cancel"), dflt, NULL))
- {
- case 1: return VIM_YES;
- case 2: return VIM_NO;
- }
- return VIM_CANCEL;
- }
-
- int
- vim_dialog_yesnoallcancel(type, title, message, dflt)
- int type;
- char_u *title;
- char_u *message;
- int dflt;
- {
- switch (do_dialog(type,
- title == NULL ? (char_u *)"Question" : title,
- message,
- (char_u *)_("&Yes\n&No\nSave &All\n&Discard All\n&Cancel"),
- dflt, NULL))
- {
- case 1: return VIM_YES;
- case 2: return VIM_NO;
- case 3: return VIM_ALL;
- case 4: return VIM_DISCARDALL;
- }
- return VIM_CANCEL;
- }
-
- #endif /* FEAT_GUI_DIALOG || FEAT_CON_DIALOG */
-
- #if defined(FEAT_BROWSE) || defined(PROTO)
- /*
- * Generic browse function. Calls gui_mch_browse() when possible.
- * Later this may pop-up a non-GUI file selector (external command?).
- */
- char_u *
- do_browse(saving, title, dflt, ext, initdir, filter, buf)
- int saving; /* write action */
- char_u *title; /* title for the window */
- char_u *dflt; /* default file name */
- char_u *ext; /* extension added */
- char_u *initdir; /* initial directory, NULL for current dir */
- char_u *filter; /* file name filter */
- buf_T *buf; /* buffer to read/write for */
- {
- char_u *fname;
- static char_u *last_dir = NULL; /* last used directory */
- char_u *tofree = NULL;
-
-
- /* Must turn off browse straight away, or :so autocommands will get the
- * flag too! */
- cmdmod.browse = FALSE;
-
- if (title == NULL)
- {
- if (saving)
- title = (char_u *)_("Save File dialog");
- else
- title = (char_u *)_("Open File dialog");
- }
-
- /* When no directory specified, use default dir, buffer dir, last dir
- * or current dir */
- if (initdir == NULL || *initdir == NUL)
- {
- /* When 'browsedir' is a directory, use it */
- if (mch_isdir(p_bsdir))
- initdir = p_bsdir;
- /* When saving or 'browsedir' is "buffer", use buffer fname */
- else if ((saving || *p_bsdir == 'b')
- && buf != NULL && buf->b_ffname != NULL)
- {
- dflt = gettail(curbuf->b_ffname);
- tofree = vim_strsave(curbuf->b_ffname);
- if (tofree != NULL)
- {
- initdir = tofree;
- *gettail(initdir) = NUL;
- }
- }
- /* When 'browsedir' is "last", use dir from last browse */
- else if (*p_bsdir == 'l')
- initdir = last_dir;
- /* When 'browsedir is "current", use current directory. This is the
- * default already, leave initdir empty. */
- }
-
- # ifdef FEAT_GUI
- if (gui.in_use) /* when this changes, also adjust f_has()! */
- {
- if (filter == NULL
- # ifdef FEAT_EVAL
- && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL
- && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL
- # endif
- )
- filter = BROWSE_FILTER_DEFAULT;
- fname = gui_mch_browse(saving, title, dflt, ext, initdir, filter);
-
- /* We hang around in the dialog for a while, the user might do some
- * things to our files. The Win32 dialog allows deleting or renaming
- * a file, check timestamps. */
- need_check_timestamps = TRUE;
- did_check_timestamps = FALSE;
- }
- else
- # endif
- {
- /* TODO: non-GUI file selector here */
- EMSG(_("E338: Sorry, no file browser in console mode"));
- fname = NULL;
- }
-
- /* keep the directory for next time */
- if (fname != NULL)
- {
- vim_free(last_dir);
- last_dir = vim_strsave(fname);
- if (last_dir != NULL)
- {
- *gettail(last_dir) = NUL;
- if (*last_dir == NUL)
- {
- /* filename only returned, must be in current dir*/
- vim_free(last_dir);
- last_dir = alloc(MAXPATHL);
- if (last_dir != NULL)
- mch_dirname(last_dir, MAXPATHL);
- }
- }
- }
-
- vim_free(tofree);
-
- return fname;
- }
- #endif
-