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Diffstat (limited to 'src/nvim/message.c')
| -rw-r--r-- | src/nvim/message.c | 3881 |
1 files changed, 3881 insertions, 0 deletions
diff --git a/src/nvim/message.c b/src/nvim/message.c new file mode 100644 index 0000000000..feb1226e6d --- /dev/null +++ b/src/nvim/message.c @@ -0,0 +1,3881 @@ +/* + * 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 attributes 'attr'. + * Return the number of characters it takes on the screen. + */ +int msg_outtrans(char_u *str) +{ + return msg_outtrans_attr(str, 0); +} + +int msg_outtrans_attr(char_u *str, int attr) +{ + return msg_outtrans_len_attr(str, (int)STRLEN(str), attr); +} + +int msg_outtrans_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(char_u *p, int attr) +{ + int l; + + if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) { + msg_outtrans_len_attr(p, l, attr); + return p + l; + } + msg_puts_attr(transchar_byte(*p), attr); + return p + 1; +} + +int msg_outtrans_len_attr(char_u *msgstr, int len, int attr) +{ + int retval = 0; + char_u *str = msgstr; + char_u *plain_start = msgstr; + char_u *s; + int mb_l; + int c; |