diff options
Diffstat (limited to 'src/message.c')
-rw-r--r-- | src/message.c | 3165 |
1 files changed, 3165 insertions, 0 deletions
diff --git a/src/message.c b/src/message.c new file mode 100644 index 0000000000..405ae6e03c --- /dev/null +++ b/src/message.c @@ -0,0 +1,3165 @@ +/* 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 HAVE_STDARG_H +# include <stdarg.h> +#endif + +static void reset_last_sourcing __ARGS((void)); +static char_u *get_emsg_source __ARGS((int other)); +static char_u *get_emsg_lnum __ARGS((int other)); +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 void msg_puts_attr_len __ARGS((char_u *str, int maxlen, int attr)); +static void t_puts __ARGS((int t_col, char_u *t_s, char_u *s, int attr)); +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, int maxlen)); +#ifdef FEAT_CON_DIALOG +static char_u *msg_show_console_dialog __ARGS((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 */ +#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); + 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) + { + 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]; +#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 HAVE_STDARG_H + +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 /* HAVE_STDARG_H */ + + int +#ifdef __BORLANDC__ +_RTLENTRYF +#endif +smsg(char_u *s, ...) +{ + va_list arglist; + + va_start(arglist, s); +# ifdef HAVE_VSNPRINTF + vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist); +# else + vsprintf((char *)IObuff, (char *)s, arglist); +# endif + va_end(arglist); + return msg(IObuff); +} + + int +#ifdef __BORLANDC__ +_RTLENTRYF +#endif +smsg_attr(int attr, char_u *s, ...) +{ + va_list arglist; + + va_start(arglist, s); +# ifdef HAVE_VSNPRINTF + vsnprintf((char *)IObuff, IOSIZE, (char *)s, arglist); +# else + vsprintf((char *)IObuff, (char *)s, arglist); +# endif + va_end(arglist); + return msg_attr(IObuff, attr); +} + +# endif /* HAVE_STDARG_H */ +#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; +} + +/* + * 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(other) + int other; /* TRUE when "sourcing_name" differs from last time */ +{ + char_u *Buf, *p; + + if (sourcing_name != NULL && other) + { + p = (char_u *)_("Error detected while processing %s:"); + Buf = alloc((unsigned)(STRLEN(sourcing_name) + STRLEN(p))); + if (Buf != NULL) + 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(other) + int other; /* TRUE when "sourcing_name" differs from last time */ +{ + 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_lnum != last_sourcing_lnum) + && sourcing_lnum != 0) + { + p = (char_u *)_("line %4ld:"); + Buf = alloc((unsigned)(STRLEN(p) + 20)); + if (Buf != NULL) + sprintf((char *)Buf, (char *)p, (long)sourcing_lnum); + return Buf; + } + return NULL; +} + +/* + * 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; +{ + int attr; + int other_sourcing_name; + char_u *p; +#ifdef FEAT_EVAL + int ignore = FALSE; + int severe; +#endif + + called_emsg = TRUE; + + /* + * If "emsg_severe" is TRUE: When an error exception is to be thrown, prefer + * this message over previous messages for the same command. + */ +#ifdef FEAT_EVAL + severe = emsg_severe; + emsg_severe = FALSE; +#endif + + /* + * 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 (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; + + if (!emsg_off) + { +#ifdef FEAT_EVAL + /* + * 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); +#endif + + /* + * When using ":silent! cmd" ignore error messsages. + * But do write it to the redirection file. + */ + if (emsg_silent != 0) + { + msg_start(); + p = get_emsg_source(other_sourcing_name); + if (p != NULL) + { + STRCAT(p, "\n"); + redir_write(p, -1); + vim_free(p); + } + p = get_emsg_lnum(other_sourcing_name); + if (p != NULL) + { + STRCAT(p, "\n"); + redir_write(p, -1); + vim_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() */ + +#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 */ + + /* + * Display name and line number for the source of the error. + */ + ++no_wait_return; + p = get_emsg_source(other_sourcing_name); + if (p != NULL) + { + msg_attr(p, attr); + vim_free(p); + } + p = get_emsg_lnum(other_sourcing_name); + if (p != NULL) + { + msg_attr(p, hl_attr(HLF_N)); + vim_free(p); + last_sourcing_lnum = sourcing_lnum; /* only once for each line */ + } + --no_wait_return; + + /* 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 */ + + /* + * Display the error message itself. + */ + return msg_attr(s, attr); +} + +/* + * Print an error message with one "%s" and one string argument. + */ + int +emsg2(s, a1) + char_u *s, *a1; +{ + return emsg3(s, a1, NULL); +} + +/* + * Print an error message with one or two "%s" and one or two string arguments. + */ + int +emsg3(s, a1, a2) + char_u *s, *a1, *a2; +{ + 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]"; + if (a2 == NULL) + a2 = (char_u *)"[NULL]"; + + /* Check for very long strings (can happen with ":help ^A<CR>"). */ + if (STRLEN(s) + STRLEN(a1) + STRLEN(a2) >= (size_t)IOSIZE) + a1 = a2 = (char_u *)_("[string too long]"); + + sprintf((char *)IObuff, (char *)s, (char *)a1, (char *)a2); + return emsg(IObuff); +} + +/* + * Print an error message with one "%ld" and one long int argument. + */ + 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 || msg_silent != 0) + 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; +#ifndef ORG_HITRETURN + int had_got_int; +#endif + + 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 = 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; +#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 + { + /* Remember "got_int", if it is set vgetc() probably returns a + * CTRL-C, but we need to loop then. */ + had_got_int = got_int; + 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 ((had_got_int && 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) + && mouse_row < msg_row + && (c == K_LEFTMOUSE + || c == K_MIDDLEMOUSE + || c == K_RIGHTMOUSE + || c == K_X1MOUSE + || c == K_X2MOUSE)) +#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 + || c == K_X1MOUSE || c == K_X2MOUSE) + (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); + else +#endif + if (vim_strchr((char_u *)"\r\n ", c) == NULL && c != Ctrl_C) + { + 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(); + +#if defined(UNIX) || defined(VMS) + /* + * 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) + { + 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 = +#ifdef FEAT_RIGHTLEFT + cmdmsg_rl ? Columns - 1 : +#endif + 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() +{ + 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; +{ +#ifdef FEAT_MBYTE + char_u buf[MB_MAXBYTES + 1]; +#else + char_u buf[4]; +#endif + + if (IS_SPECIAL(c)) + { + buf[0] = K_SPECIAL; + buf[1] = K_SECOND(c); + buf[2] = K_THIRD(c); + buf[3] = NUL; + } + else + { +#ifdef FEAT_MBYTE + buf[(*mb_char2bytes)(c, buf)] = NUL; +#else + buf[0] = c; + buf[1] = NUL; +#endif + } + 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_byte(*p), attr); + return p + 1; +} + + int +msg_outtrans_len_attr(msgstr, len, attr) + char_u *msgstr; + int len; + int attr; +{ + int retval = 0; + char_u *str = msgstr; + char_u *plain_start = msgstr; + char_u *s; +#ifdef FEAT_MBYTE + int mb_l; + int c; +#endif + + /* if MSG_HIST flag set, add message to history */ + if (attr & MSG_HIST) + { + add_msg_hist(str, len, attr); + attr &= ~MSG_HIST; + } + +#ifdef FEAT_MBYTE + /* If the string starts with a composing character first draw a space on + * which the composing char can be drawn. */ + if (enc_utf8 && utf_iscomposing(utf_ptr2char(msgstr))) + msg_puts_attr((char_u *)" ", attr); +#endif + + /* + * Go over the string. Special characters are translated and printed. + * Normal characters are printed several at a time. + */ + while (--len >= 0) + { +#ifdef FEAT_MBYTE + if (enc_utf8) + /* Don't include composing chars after the end. */ + mb_l = utfc_ptr2len_check_len(str, len + 1); + else if (has_mbyte) + mb_l = (*mb_ptr2len_check)(str); + else + mb_l = 1; + if (has_mbyte && mb_l > 1) + { + c = (*mb_ptr2char)(str); + if (vim_isprintc(c)) + /* printable multi-byte char: count the cells. */ + retval += (*mb_ptr2cells)(str); + else + { + /* unprintable multi-byte char: print the printable chars so + * far and the translation of the unprintable char. */ + if (str > plain_start) + msg_puts_attr_len(plain_start, (int)(str - plain_start), + attr); + plain_start = str + mb_l; + m |