ref: 13a0cd269f19b10a1327c13c89db56fb6945e7da
dir: /message.c/
/* 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"
static int other_sourcing_name __ARGS((void));
static char_u *get_emsg_source __ARGS((void));
static char_u *get_emsg_lnum __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 void msg_puts_attr_len __ARGS((char_u *str, int maxlen, int attr));
static void msg_puts_display __ARGS((char_u *str, int maxlen, int attr, int recurse));
static void msg_scroll_up __ARGS((void));
static void inc_msg_scrolled __ARGS((void));
static void store_sb_text __ARGS((char_u **sb_str, char_u *s, int attr, int *sb_col, int finish));
static void t_puts __ARGS((int *t_col, char_u *t_s, char_u *s, int attr));
static void msg_puts_printf __ARGS((char_u *str, int maxlen));
static int do_more_prompt __ARGS((int typed_char));
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));
static void verbose_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;
/*
* 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);
}
#if defined(FEAT_EVAL) || defined(FEAT_X11) || defined(USE_XSMP) \
|| defined(PROTO)
/*
* Like msg() but keep it silent when 'verbosefile' is set.
*/
int
verb_msg(s)
char_u *s;
{
int n;
verbose_enter();
n = msg_attr_keep(s, 0, FALSE);
verbose_leave();
return n;
}
#endif
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. */
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);
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, force)
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)
{
#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)(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)(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
#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));
int vim_snprintf __ARGS((char *, size_t, char *, long, long, long,
long, long, long, long, long, long, long));
/*
* smsg(str, arg, ...) is like using sprintf(buf, str, arg, ...) and then
* calling msg(buf).
* The buffer used is IObuff, the message is truncated at IOSIZE.
*/
/* 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;
{
vim_snprintf((char *)IObuff, IOSIZE, (char *)s,
a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
return msg_attr(IObuff, attr);
}
# else /* HAVE_STDARG_H */
int vim_snprintf(char *str, size_t str_m, char *fmt, ...);
int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
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
#ifdef __BORLANDC__
_RTLENTRYF
#endif
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);
}
# 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;
*/
void
reset_last_sourcing()
{
vim_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()
{
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()
{
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)));
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()
{
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));
if (Buf != NULL)
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(attr)
int attr;
{
char_u *p;
++no_wait_return;
p = get_emsg_source();
if (p != NULL)
{
msg_attr(p, attr);
vim_free(p);
}
p = get_emsg_lnum();
if (p != NULL)
{
msg_attr(p, hl_attr(HLF_N));
vim_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())
{
vim_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()
{
if ((emsg_off > 0 && vim_strchr(p_debug, 'm') == NULL
&& vim_strchr(p_debug, 't') == NULL)
#ifdef FEAT_EVAL
|| emsg_skip > 0
#endif
)
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(s)
char_u *s;
{
int attr;
char_u *p;
#ifdef FEAT_EVAL
int ignore = FALSE;
int severe;
#endif
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.
*/
#ifdef FEAT_EVAL
severe = emsg_severe;
emsg_severe = FALSE;
#endif
/* Skip this if not giving error messages at the moment. */
if (emsg_not_now())
return TRUE;
if (!emsg_off || vim_strchr(p_debug, 't') != NULL)
{
#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();
if (p != NULL)
{
STRCAT(p, "\n");
redir_write(p, -1);
vim_free(p);
}
p = get_emsg_lnum();
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() */
}
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(s, a1)
char_u *s, *a1;
{
return emsg3(s, a1, NULL);
}
/* emsg3() and emsgn() are in misc2.c to avoid warnings for the prototypes. */
void
emsg_invreg(name)
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(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);
/* 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;
}
#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 > 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 (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;
}
}
/*
* Delete the first (oldest) message from the history.
* Returns FAIL if there are no messages.
*/
int
delete_first_msg()
{
struct msg_hist *p;
if (msg_hist_len <= 0)
return FAIL;
p = first_msg_hist;
first_msg_hist = p->next;
vim_free(p->msg);
vim_free(p);
--msg_hist_len;
return OK;
}
/*
* ":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 <[email protected]>"),
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(FIND_REPLACE_DIALOG) || defined(PROTO)
/*
* Call this after prompting the user. This will avoid a hit-return message
* and a delay.
*/
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;
int had_got_int;
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 > 0)
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();
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;
c = safe_vgetc();
if (had_got_int && !global_busy)
got_int = FALSE;
--no_mapping;
--allow_keys;
#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
/*
* 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)
{
/* scroll back to show older messages */
do_more_prompt(c);
if (quit_more)
{
c = CAR; /* just pretend CR was hit */
quit_more = FALSE;
got_int = FALSE;
}
else
{
c = K_IGNORE;
hit_return_msg();
}
}
else if (msg_scrolled > Rows - 2
&& (c == 'j' || c == K_DOWN || c == 'd'))
c = K_IGNORE;
}
} 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)
{
/* 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 */
#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()
{
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(s, attr)
char_u *s;
int attr;
{
vim_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 defined(FEAT_TERMRESPONSE) || defined(PROTO)
/*
* 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()
{
if (keep_msg == NULL && last_msg_hist != NULL && msg_scrolled == 0
&& (State & NORMAL))
set_keep_msg(last_msg_hist->msg, last_msg_hist->attr);
}
#endif
/*
* 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)(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_len(str, len + 1);
else if (has_mbyte)
mb_l = (*mb_ptr2len)(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;
msg_puts_attr(transchar(c), attr == 0 ? hl_attr(HLF_8) : attr);
retval += char2cells(c);
}
len -= mb_l - 1;
str += mb_l;
}
else
#endif
{
s = transchar_byte(*str);
if (s[1] != NUL)
{
/* unprintable 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 + 1;
msg_puts_attr(s, attr == 0 ? hl_attr(HLF_8) : attr);
}
retval += ptr2cells(str);
++str;
}
}
if (str > plain_start)
/* print the printable chars at the end */
msg_puts_attr_len(plain_start, (int)(str - plain_start), attr);
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(strstart, from)
char_u *strstart;
int from; /* TRUE for lhs of a mapping */
{
char_u *str = strstart;
int retval = 0;
char_u *string;
int attr;
int len;
attr = hl_attr(HLF_8);
while (*str != NUL)
{
/* Leading and trailing spaces need to be displayed in <> form. */
if ((str == strstart || str[1] == NUL) && *str == ' ')
{
string = (char_u *)"<Space>";
++str;
}
else
string = str2special(&str, from);
len = vim_strsize(string);
/* Highlight special keys */
msg_puts_attr(string, len > 1
#ifdef FEAT_MBYTE
&& (*mb_ptr2len)(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)(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, list)
char_u *s;
int list;
{
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
if (curwin->w_p_list)
list = TRUE;
/* find start of trailing whitespace */
if (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 && !(list && lcs_eol != NUL))
msg_putchar(' ');
while (!got_int)
{
if (n_extra > 0)
{
--n_extra;
if (c_extra)
c = c_extra;
else
c = *p_extra++;
}
#ifdef FEAT_MBYTE
else if (has_mbyte && (l = (*mb_ptr2len)(s)) > 1)
{
col += (*mb_ptr2cells)(s);
mch_memmove(buf, s, (size_t)l);
buf[l] = NUL;
msg_puts(buf);
s += l;
continue;
}
#endif
else
{
attr = 0;
c = *s++;
if (c == TAB && (!list || lcs_tab1))
{
/* tab amount depends on current column */
n_extra = curbuf->b_p_ts - col % curbuf->b_p_ts - 1;
if (!list)
{
c = ' ';
c_extra = ' ';
}
else
{
c = lcs_tab1;
c_extra = lcs_tab2;
attr = hl_attr(HLF_8);
}
}
else if (c == NUL && list && lcs_eol != NUL)
{
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_byte(c);
c_extra = NUL;
c = *p_extra++;
/* Use special coloring to be able to distinguish <hex> from
* the same in plain text. */
attr = hl_attr(HLF_8);
}
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;
msg_didout = TRUE; /* remember that line is not empty */
cw = (*mb_ptr2cells)(s);
if (cw > 1 && (
#ifdef FEAT_RIGHTLEFT
cmdmsg_rl ? msg_col <= 1 :
#endif
msg_col == Columns - 1))
{
/* Doesn't fit, print a highlighted '>' to fill it up. */
msg_screen_putchar('>', hl_attr(HLF_AT));
return s;
}
screen_puts_len(s, l, msg_row, msg_col, attr);
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl)
{
msg_col -= cw;
if (msg_col == 0)
{
msg_col = Columns;
++msg_row;
}
}
else
#endif
{
msg_col += cw;
if (msg_col >= 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));
}
/*
* 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.
* Does not handle multi-byte characters!
*/
void
msg_puts_long_attr(longstr, attr)
char_u *longstr;
int attr;
{
msg_puts_long_len_attr(longstr, (int)STRLEN(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;
{
msg_puts_attr_len(s, -1, attr);
}
/*
* Like msg_puts_attr(), but with a maximum length "maxlen" (in bytes).
* When "maxlen" is -1 there is no maximum length.
* When "maxlen" is >= 0 the message is not put in the history.
*/
static void
msg_puts_attr_len(str, maxlen, attr)
char_u *str;
int maxlen;
int attr;
{
/*
* If redirection is on, also write to the redirection file.
*/
redir_write(str, maxlen);
/*
* 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) && maxlen < 0)
{
add_msg_hist(str, -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 != 0 && !msg_scrolled_ign)
need_wait_return = TRUE;
msg_didany = TRUE; /* remember that something was outputted */
/*
* 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())
msg_puts_printf(str, maxlen);
else
msg_puts_display(str, maxlen, attr, FALSE);
}
/*
* The display part of msg_puts_attr_len().
* May be called recursively to display scroll-back text.
*/
static void
msg_puts_display(str, maxlen, attr, recurse)
char_u *str;
int maxlen;
int attr;
int recurse;
{
char_u *s = str;
char_u *t_s = str; /* string from "t_s" to "s" is still todo */
int t_col = 0; /* screen cells todo, 0 when "t_s" not used */
#ifdef FEAT_MBYTE
int l;
int cw;
#endif
char_u *sb_str = str;
int sb_col = msg_col;
int wrap;
did_wait_return = FALSE;
while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen))
{
/*
* We are at the end of the screen line when:
* - When outputting a newline.
* - When outputting a character in the last column.
*/
if (!recurse && msg_row >= Rows - 1 && (*s == '\n' || (
#ifdef FEAT_RIGHTLEFT
cmdmsg_rl
? (
msg_col <= 1
|| (*s == TAB && msg_col <= 7)
# ifdef FEAT_MBYTE
|| (has_mbyte && (*mb_ptr2cells)(s) > 1 && msg_col <= 2)
# endif
)
:
#endif
(msg_col + t_col >= Columns - 1
|| (*s == TAB && msg_col + t_col >= ((Columns - 1) & ~7))
# ifdef FEAT_MBYTE
|| (has_mbyte && (*mb_ptr2cells)(s) > 1
&& msg_col + t_col >= Columns - 2)
# endif
))))
{
/*
* The screen is scrolled up when at the last row (some terminals
* scroll automatically, some don't. To avoid problems we scroll
* ourselves).
*/
if (t_col > 0)
/* output postponed text */
t_puts(&t_col, t_s, s, attr);
/* When no more prompt an no more room, truncate here */
if (msg_no_more && lines_left == 0)
break;
/* Scroll the screen up one line. */
msg_scroll_up();
msg_row = Rows - 2;
if (msg_col >= Columns) /* can happen after screen resize */
msg_col = Columns - 1;
/* Display char in last column before showing more-prompt. */
if (*s >= ' '
#ifdef FEAT_RIGHTLEFT
&& !cmdmsg_rl
#endif
)
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
if (enc_utf8 && maxlen >= 0)
/* avoid including composing chars after the end */
l = utfc_ptr2len_len(s, (int)((str + maxlen) - s));
else
l = (*mb_ptr2len)(s);
s = screen_puts_mbyte(s, l, attr);
}
else
#endif
msg_screen_putchar(*s++, attr);
}
if (p_more)
/* store text for scrolling back */
store_sb_text(&sb_str, s, attr, &sb_col, TRUE);
inc_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 and 'more' is set then wait
* for a character.
*/
--lines_left;
if (p_more && lines_left == 0 && State != HITRETURN
&& !msg_no_more && !exmode_active)
{
#ifdef FEAT_CON_DIALOG
if (do_more_prompt(NUL))
s = confirm_msg_tail;
#else
(void)do_more_prompt(NUL);
#endif
if (quit_more)
return;
}
/* When we displayed a char in last column need to check if there
* is still more. */
if (*s >= ' '
#ifdef FEAT_RIGHTLEFT
&& !cmdmsg_rl
#endif
)
continue;
}
wrap = *s == '\n'
|| msg_col + t_col >= Columns
#ifdef FEAT_MBYTE
|| (has_mbyte && (*mb_ptr2cells)(s) > 1
&& msg_col + t_col >= Columns - 1)
#endif
;
if (t_col > 0 && (wrap || *s == '\r' || *s == '\b'
|| *s == '\t' || *s == BELL))
/* output any postponed text */
t_puts(&t_col, t_s, s, attr);
if (wrap && p_more && !recurse)
/* store text for scrolling back */
store_sb_text(&sb_str, s, attr, &sb_col, TRUE);
if (*s == '\n') /* go to next line */
{
msg_didout = FALSE; /* remember that line is empty */
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl)
msg_col = Columns - 1;
else
#endif
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 Tab into spaces */
{
do
msg_screen_putchar(' ', attr);
while (msg_col & 7);
}
else if (*s == BELL) /* beep (from ":sh") */
vim_beep();
else
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
cw = (*mb_ptr2cells)(s);
if (enc_utf8 && maxlen >= 0)
/* avoid including composing chars after the end */
l = utfc_ptr2len_len(s, (int)((str + maxlen) - s));
else
l = (*mb_ptr2len)(s);
}
else
{
cw = 1;
l = 1;
}
#endif
/* When drawing from right to left or when a double-wide character
* doesn't fit, draw a single character here. Otherwise collect
* characters and draw them all at once later. */
#if defined(FEAT_RIGHTLEFT) || defined(FEAT_MBYTE)
if (
# ifdef FEAT_RIGHTLEFT
cmdmsg_rl
# ifdef FEAT_MBYTE
||
# endif
# endif
# ifdef FEAT_MBYTE
(cw > 1 && msg_col + t_col >= Columns - 1)
# endif
)
{
# ifdef FEAT_MBYTE
if (l > 1)
s = screen_puts_mbyte(s, l, attr) - 1;
else
# endif
msg_screen_putchar(*s, attr);
}
else
#endif
{
/* postpone this character until later */
if (t_col == 0)
t_s = s;
#ifdef FEAT_MBYTE
t_col += cw;
s += l - 1;
#else
++t_col;
#endif
}
}
++s;
}
/* output any postponed text */
if (t_col > 0)
t_puts(&t_col, t_s, s, attr);
if (p_more && !recurse)
store_sb_text(&sb_str, s, attr, &sb_col, FALSE);
msg_check();
}
/*
* Scroll the screen up one line for displaying the next message line.
*/
static void
msg_scroll_up()
{
#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);
}
}
/*
* Increment "msg_scrolled".
*/
static void
inc_msg_scrolled()
{
#ifdef FEAT_EVAL
if (*get_vim_var_str(VV_SCROLLSTART) == NUL)
{
char_u *p = sourcing_name;
char_u *tofree = NULL;
int len;
/* v:scrollstart is empty, set it to the script/function name and line
* number */
if (p == NULL)
p = (char_u *)_("Unknown");
else
{
len = (int)STRLEN(p) + 40;
tofree = alloc(len);
if (tofree != NULL)
{
vim_snprintf((char *)tofree, len, _("%s line %ld"),
p, (long)sourcing_lnum);
p = tofree;
}
}
set_vim_var_string(VV_SCROLLSTART, p, -1);
vim_free(tofree);
}
#endif
++msg_scrolled;
}
/*
* To be able to scroll back at the "more" and "hit-enter" prompts we need to
* store the displayed text and remember where screen lines start.
*/
typedef struct msgchunk_S msgchunk_T;
struct msgchunk_S
{
msgchunk_T *sb_next;
msgchunk_T *sb_prev;
char sb_eol; /* TRUE when line ends after this text */
int sb_msg_col; /* column in which text starts */
int sb_attr; /* text attributes */
char_u sb_text[1]; /* text to be displayed, actually longer */
};
static msgchunk_T *last_msgchunk = NULL; /* last displayed text */
static msgchunk_T *msg_sb_start __ARGS((msgchunk_T *mps));
static msgchunk_T *disp_sb_line __ARGS((int row, msgchunk_T *smp));
static int do_clear_sb_text = FALSE; /* clear text on next msg */
/*
* Store part of a printed message for displaying when scrolling back.
*/
static void
store_sb_text(sb_str, s, attr, sb_col, finish)
char_u **sb_str; /* start of string */
char_u *s; /* just after string */
int attr;
int *sb_col;
int finish; /* line ends */
{
msgchunk_T *mp;
if (do_clear_sb_text)
{
clear_sb_text();
do_clear_sb_text = FALSE;
}
if (s > *sb_str)
{
mp = (msgchunk_T *)alloc((int)(sizeof(msgchunk_T) + (s - *sb_str)));
if (mp != NULL)
{
mp->sb_eol = finish;
mp->sb_msg_col = *sb_col;
mp->sb_attr = attr;
vim_strncpy(mp->sb_text, *sb_str, s - *sb_str);
if (last_msgchunk == NULL)
{
last_msgchunk = mp;
mp->sb_prev = NULL;
}
else
{
mp->sb_prev = last_msgchunk;
last_msgchunk->sb_next = mp;
last_msgchunk = mp;
}
mp->sb_next = NULL;
}
}
else if (finish && last_msgchunk != NULL)
last_msgchunk->sb_eol = TRUE;
*sb_str = s;
*sb_col = 0;
}
/*
* Finished showing messages, clear the scroll-back text on the next message.
*/
void
may_clear_sb_text()
{
do_clear_sb_text = TRUE;
}
/*
* Clear any text remembered for scrolling back.
* Called when redrawing the screen.
*/
void
clear_sb_text()
{
msgchunk_T *mp;
while (last_msgchunk != NULL)
{
mp = last_msgchunk->sb_prev;
vim_free(last_msgchunk);
last_msgchunk = mp;
}
}
/*
* "g<" command.
*/
void
show_sb_text()
{
msgchunk_T *mp;
/* Only show somethign if there is more than one line, otherwise it looks
* weird, typing a command without output results in one line. */
mp = msg_sb_start(last_msgchunk);
if (mp == NULL || mp->sb_prev == NULL)
vim_beep();
else
{
do_more_prompt('G');
wait_return(FALSE);
}
}
/*
* Move to the start of screen line in already displayed text.
*/
static msgchunk_T *
msg_sb_start(mps)
msgchunk_T *mps;
{
msgchunk_T *mp = mps;
while (mp != NULL && mp->sb_prev != NULL && !mp->sb_prev->sb_eol)
mp = mp->sb_prev;
return mp;
}
/*
* Display a screen line from previously displayed text at row "row".
* Returns a pointer to the text for the next line (can be NULL).
*/
static msgchunk_T *
disp_sb_line(row, smp)
int row;
msgchunk_T *smp;
{
msgchunk_T *mp = smp;
char_u *p;
for (;;)
{
msg_row = row;
msg_col = mp->sb_msg_col;
p = mp->sb_text;
if (*p == '\n') /* don't display the line break */
++p;
msg_puts_display(p, -1, mp->sb_attr, TRUE);
if (mp->sb_eol || mp->sb_next == NULL)
break;
mp = mp->sb_next;
}
return mp->sb_next;
}
/*
* Output any postponed text for msg_puts_attr_len().
*/
static void
t_puts(t_col, t_s, s, attr)
int *t_col;
char_u *t_s;
char_u *s;
int attr;
{
/* output postponed text */
msg_didout = TRUE; /* remember that line is not empty */
screen_puts_len(t_s, (int)(s - t_s), msg_row, msg_col, attr);
msg_col += *t_col;
*t_col = 0;
#ifdef FEAT_MBYTE
/* If the string starts with a composing character don't increment the
* column position for it. */
if (enc_utf8 && utf_iscomposing(utf_ptr2char(t_s)))
--msg_col;
#endif
if (msg_col >= Columns)
{
msg_col = 0;
++msg_row;
}
}
/*
* 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.
*/
int
msg_use_printf()
{
return (!msg_check_screen()
#if defined(WIN3264) && !defined(FEAT_GUI_MSWIN)
|| !termcap_active
#endif
|| (swapping_screen() && !termcap_active)
);
}
/*
* Print a message when there is no valid screen.
*/
static void
msg_puts_printf(str, maxlen)
char_u *str;
int maxlen;
{
char_u *s = str;
char_u buf[4];
char_u *p;
#ifdef WIN3264
if (!(silent_mode && p_verbose == 0))
mch_settmode(TMODE_COOK); /* handle '\r' and '\n' correctly */
#endif
while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen))
{
if (!(silent_mode && p_verbose == 0))
{
/* NL --> CR NL translation (for Unix, not for "--version") */
/* NL --> CR translation (for Mac) */
p = &buf[0];
if (*s == '\n' && !info_message)
*p++ = '\r';
#if defined(USE_CR) && !defined(MACOS_X_UNIX)
else
#endif
*p++ = *s;
*p = '\0';
if (info_message) /* informative message, not an error */
mch_msg((char *)buf);
else
mch_errmsg((char *)buf);
}
/* primitive way to compute the current column */
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl)
{
if (*s == '\r' || *s == '\n')
msg_col = Columns - 1;
else
--msg_col;
}
else
#endif
{
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 && p_verbose == 0))
mch_settmode(TMODE_RAW);
#endif
}
/*
* Show the more-prompt and handle the user response.
* This takes care of scrolling back and displaying previously displayed text.
* When at hit-enter prompt "typed_char" is the already typed character,
* otherwise it's NUL.
* Returns TRUE when jumping ahead to "confirm_msg_tail".
*/
static int
do_more_prompt(typed_char)
int typed_char;
{
int used_typed_char = typed_char;
int oldState = State;
int c;
#ifdef FEAT_CON_DIALOG
int retval = FALSE;
#endif
int scroll;
msgchunk_T *mp_last = NULL;
msgchunk_T *mp;
int i;
if (typed_char == 'G')
{
/* "g<": Find first line on the last page. */
mp_last = msg_sb_start(last_msgchunk);
for (i = 0; i < Rows - 2 && mp_last != NULL
&& mp_last->sb_prev != NULL; ++i)
mp_last = msg_sb_start(mp_last->sb_prev);
}
State = ASKMORE;
#ifdef FEAT_MOUSE
setmouse();
#endif
if (typed_char == NUL)
msg_moremsg(FALSE);
for (;;)
{
/*
* Get a typed character directly from the user.
*/
if (used_typed_char != NUL)
{
c = used_typed_char; /* was typed at hit-enter prompt */
used_typed_char = NUL;
}
else
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
scroll = 0;
switch (c)
{
case BS: /* scroll one line back */
case K_BS:
case 'k':
case K_UP:
scroll = -1;
break;
case CAR: /* one extra line */
case NL:
case 'j':
case K_DOWN:
scroll = 1;
break;
case 'u': /* Up half a page */
case K_PAGEUP:
scroll = -(Rows / 2);
break;
case 'd': /* Down half a page */
scroll = Rows / 2;
break;
case 'b': /* one page back */
scroll = -(Rows - 1);
break;
case ' ': /* one extra page */
case K_PAGEDOWN:
case K_LEFTMOUSE:
scroll = Rows - 1;
break;
case 'g': /* all the way back to the start */
scroll = -999999;
break;
case 'G': /* all the way to the end */
scroll = 999999;
lines_left = 999999;
break;
case ':': /* start new command line */
#ifdef FEAT_CON_DIALOG
if (!confirm_msg_used)
#endif
{
/* 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 (confirm_msg_used)
{
/* Jump to the choices of the dialog. */
retval = TRUE;
lines_left = Rows - 1;
}
else
#endif
{
got_int = TRUE;
quit_more = TRUE;
}
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;
}
if (scroll != 0)
{
if (scroll < 0)
{
/* go to start of last line */
if (mp_last == NULL)
mp = msg_sb_start(last_msgchunk);
else if (mp_last->sb_prev != NULL)
mp = msg_sb_start(mp_last->sb_prev);
else
mp = NULL;
/* go to start of line at top of the screen */
for (i = 0; i < Rows - 2 && mp != NULL && mp->sb_prev != NULL;
++i)
mp = msg_sb_start(mp->sb_prev);
if (mp != NULL && mp->sb_prev != NULL)
{
/* Find line to be displayed at top. */
for (i = 0; i > scroll; --i)
{
if (mp == NULL || mp->sb_prev == NULL)
break;
mp = msg_sb_start(mp->sb_prev);
if (mp_last == NULL)
mp_last = msg_sb_start(last_msgchunk);
else
mp_last = msg_sb_start(mp_last->sb_prev);
}
if (scroll == -1 && screen_ins_lines(0, 0, 1,
(int)Rows, NULL) == OK)
{
/* display line at top */
(void)disp_sb_line(0, mp);
}
else
{
/* redisplay all lines */
screenclear();
for (i = 0; mp != NULL && i < Rows - 1; ++i)
{
mp = disp_sb_line(i, mp);
++msg_scrolled;
}
}
scroll = 0;
}
}
else
{
/* First display any text that we scrolled back. */
while (scroll > 0 && mp_last != NULL)
{
/* scroll up, display line at bottom */
msg_scroll_up();
inc_msg_scrolled();
screen_fill((int)Rows - 2, (int)Rows - 1, 0,
(int)Columns, ' ', ' ', 0);
mp_last = disp_sb_line((int)Rows - 2, mp_last);
--scroll;
}
}
if (scroll < 0 || (scroll == 0 && mp_last != NULL))
{
/* displayed the requested text, more prompt again */
screen_fill((int)Rows - 1, (int)Rows, 0,
(int)Columns, ' ', ' ', 0);
msg_moremsg(FALSE);
continue;
}
/* display more text, return to caller */
lines_left = scroll;
}
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;
}
#ifdef FEAT_RIGHTLEFT
else if (cmdmsg_rl)
msg_col = Columns - 1;
#endif
#ifdef FEAT_CON_DIALOG
return retval;
#else
return FALSE;
#endif
}
#if defined(USE_MCH_ERRMSG) || defined(PROTO)
#ifdef mch_errmsg
# undef mch_errmsg
#endif
#ifdef mch_msg
# undef mch_msg
#endif
/*
* Give an error message. To be used when the screen hasn't been initialized
* yet. When stderr can't be used, 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.
* On Mac, when started from Finder, stderr is the console. */
if (
# ifdef UNIX
# ifdef MACOS_X_UNIX
(isatty(2) && strcmp("/dev/console", ttyname(2)) != 0)
# else
isatty(2)
# endif
# 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;
}
}
/*
* Give a message. To be used when the screen hasn't been initialized yet.
* When there is no tty, collect messages until the GUI has started and they
* can be displayed in a message box.
*/
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.
* On Mac, when started from Finder, stderr is the console. */
if (
# ifdef UNIX
# ifdef MACOS_X_UNIX
(isatty(2) && strcmp("/dev/console", ttyname(2)) != 0)
# else
isatty(2)
# endif
# 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 */
/*
* Put a character on the screen at the current message position and advance
* to the next position. Only for printable ASCII!
*/
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);
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl)
{
if (--msg_col == 0)
{
msg_col = Columns;
++msg_row;
}
}
else
#endif
{
if (++msg_col >= Columns)
{
msg_col = 0;
++msg_row;
}
}
}
void
msg_moremsg(full)
int full;
{
int attr;
char_u *s = (char_u *)_("-- More --");
attr = hl_attr(HLF_M);
screen_puts(s, (int)Rows - 1, 0, attr);
if (full)
screen_puts((char_u *)
_(" SPACE/d/j: screen/page/line down, b/u/k: up, q: quit "),
(int)Rows - 1, vim_strsize(s), 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.
* Skip this when ":silent" was used, no need to clear for redirection.
*/
void
msg_clr_eos()
{
if (msg_silent == 0)
msg_clr_eos_force();
}
/*
* 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_force()
{
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
{
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl)
{
screen_fill(msg_row, msg_row + 1, 0, msg_col + 1, ' ', ' ', 0);
screen_fill(msg_row + 1, (int)Rows, 0, (int)Columns, ' ', ' ', 0);
}
else
#endif
{
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_force();
}
/*
* 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.
* When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes.
*/
static void
redir_write(str, maxlen)
char_u *str;
int maxlen;
{
char_u *s = str;
static int cur_col = 0;
/* Don't do anything for displaying prompts and the like. */
if (redir_off)
return;
/*
* If 'verbosefile' is set write message in that file.
* Must come before the rest because of updating "msg_col".
*/
if (*p_vfile != NUL)
verbose_write(s, maxlen);
if (redir_fd != NULL
#ifdef FEAT_EVAL
|| redir_reg || redir_vname
#endif
)
{
/* 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 *)" ", -1, TRUE);
else if (redir_vname)
var_redir_str((char_u *)" ", -1);
else if (redir_fd)
#endif
fputs(" ", redir_fd);
++cur_col;
}
}
#ifdef FEAT_EVAL
if (redir_reg)
write_reg_contents(redir_reg, s, maxlen, TRUE);
if (redir_vname)
var_redir_str(s, maxlen);
#endif
/* Adjust the current column */
while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen))
{
#ifdef FEAT_EVAL
if (!redir_reg && !redir_vname && redir_fd != NULL)
#endif
putc(*s, redir_fd);
if (*s == '\r' || *s == '\n')
cur_col = 0;
else if (*s == '\t')
cur_col += (8 - cur_col % 8);
else
++cur_col;
++s;
}
if (msg_silent != 0) /* should update msg_col */
msg_col = cur_col;
}
}
/*
* Before giving verbose message.
* Must always be called paired with verbose_leave()!
*/
void
verbose_enter()
{
if (*p_vfile != NUL)
++msg_silent;
}
/*
* After giving verbose message.
* Must always be called paired with verbose_enter()!
*/
void
verbose_leave()
{
if (*p_vfile != NUL)
if (--msg_silent < 0)
msg_silent = 0;
}
/*
* Like verbose_enter() and set msg_scroll when displaying the message.
*/
void
verbose_enter_scroll()
{
if (*p_vfile != NUL)
++msg_silent;
else
/* always scroll up, don't overwrite */
msg_scroll = TRUE;
}
/*
* Like verbose_leave() and set cmdline_row when displaying the message.
*/
void
verbose_leave_scroll()
{
if (*p_vfile != NUL)
{
if (--msg_silent < 0)
msg_silent = 0;
}
else
cmdline_row = msg_row;
}
static FILE *verbose_fd = NULL;
static int verbose_did_open = FALSE;
/*
* Called when 'verbosefile' is set: stop writing to the file.
*/
void
verbose_stop()
{
if (verbose_fd != NULL)
{
fclose(verbose_fd);
verbose_fd = NULL;
}
verbose_did_open = FALSE;
}
/*
* Open the file 'verbosefile'.
* Return FAIL or OK.
*/
int
verbose_open()
{
if (verbose_fd == NULL && !verbose_did_open)
{
/* Only give the error message once. */
verbose_did_open = TRUE;
verbose_fd = mch_fopen((char *)p_vfile, "a");
if (verbose_fd == NULL)
{
EMSG2(_(e_notopen), p_vfile);
return FAIL;
}
}
return OK;
}
/*
* Write a string to 'verbosefile'.
* When "maxlen" is -1 write the whole string, otherwise up to "maxlen" bytes.
*/
static void
verbose_write(str, maxlen)
char_u *str;
int maxlen;
{
char_u *s = str;
static int cur_col = 0;
/* Open the file when called the first time. */
if (verbose_fd == NULL)
verbose_open();
if (verbose_fd != NULL)
{
/* If the string doesn't start with CR or NL, go to msg_col */
if (*s != '\n' && *s != '\r')
{
while (cur_col < msg_col)
{
fputs(" ", verbose_fd);
++cur_col;
}
}
/* Adjust the current column */
while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen))
{
putc(*s, verbose_fd);
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;
/* Don't want a hit-enter prompt here. */
++no_wait_return;
#ifdef FEAT_EVAL
set_vim_var_string(VV_WARNINGMSG, message, -1);
#endif
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, keep_msg_attr);
msg_didout = FALSE; /* overwrite this message */
msg_nowait = TRUE; /* don't wait for this message */
msg_col = 0;
--no_wait_return;
}
/*
* Advance msg cursor to column "col".
*/
void
msg_advance(col)
int col;
{
if (msg_silent != 0) /* nothing to advance to */
{
msg_col = col; /* for redirection, may fill it up later */
return;
}
if (col >= Columns) /* not enough room */
col = Columns - 1;
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl)
while (msg_col > Columns - col)
msg_putchar(' ');
else
#endif
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;
int i;
#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 and 'c' not in 'guioptions', use the GUI dialog */
if (gui.in_use && vim_strchr(p_go, GO_CONDIALOG) == NULL)
{
c = gui_mch_dialog(type, title, message, buttons, dfltbutton,
textfield);
msg_end_prompt();
/* Flush output to avoid that further messages and redrawing is done
* in the wrong order. */
out_flush();
gui_mch_update();
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 CAR: /* 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 < 0) /* special keys are ignored here */
continue;
/* Make the character lowercase, as chars in "hotkeys" are. */
c = MB_TOLOWER(c);
retval = 1;
for (i = 0; hotkeys[i]; ++i)
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
if ((*mb_ptr2char)(hotkeys + i) == c)
break;
i += (*mb_ptr2len)(hotkeys + i) - 1;
}
else
#endif
if (hotkeys[i] == c)
break;
++retval;
}
if (hotkeys[i])
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;
}
static int copy_char __ARGS((char_u *from, char_u *to, int lowercase));
/*
* Copy one character from "*from" to "*to", taking care of multi-byte
* characters. Return the length of the character in bytes.
*/
static int
copy_char(from, to, lowercase)
char_u *from;
char_u *to;
int lowercase; /* make character lower case */
{
#ifdef FEAT_MBYTE
int len;
int c;
if (has_mbyte)
{
if (lowercase)
{
c = MB_TOLOWER((*mb_ptr2char)(from));
return (*mb_char2bytes)(c, to);
}
else
{
len = (*mb_ptr2len)(from);
mch_memmove(to, from, (size_t)len);
return len;
}
}
else
#endif
{
if (lowercase)
*to = (char_u)TOLOWER_LOC(*from);
else
*to = *from;
return 1;
}
}
/*
* 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 first character of
* the button is used.
* The hotkeys can be multi-byte characters, but without combining chars.
*
* Returns an allocated string with hotkeys, 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;
#ifdef FEAT_MBYTE
# define HOTK_LEN (has_mbyte ? MB_MAXBYTES : 1)
#else
# define HOTK_LEN 1
#endif
int lenhotkey = HOTK_LEN; /* count first button */
char_u *hotk = NULL;
char_u *msgp = NULL;
char_u *hotkp = NULL;
char_u *r;
int copy;
#define HAS_HOTKEY_LEN 30
char_u has_hotkey[HAS_HOTKEY_LEN];
int first_hotkey = FALSE; /* first char of button is hotkey */
int idx;
has_hotkey[0] = FALSE;
/*
* First loop: compute the size of memory to allocate.
* Second loop: copy to the allocated memory.
*/
for (copy = 0; copy <= 1; ++copy)
{
r = buttons;
idx = 0;
while (*r)
{
if (*r == DLG_BUTTON_SEP)
{
if (copy)
{
*msgp++ = ',';
*msgp++ = ' '; /* '\n' -> ', ' */
/* advance to next hotkey and set default hotkey */
#ifdef FEAT_MBYTE
if (has_mbyte)
hotkp += (*mb_ptr2len)(hotkp);
else
#endif
++hotkp;
(void)copy_char(r + 1, hotkp, TRUE);
if (dfltbutton)
--dfltbutton;
/* If no hotkey is specified first char is used. */
if (idx < HAS_HOTKEY_LEN - 1 && !has_hotkey[++idx])
first_hotkey = TRUE;
}
else
{
len += 3; /* '\n' -> ', '; 'x' -> '(x)' */
lenhotkey += HOTK_LEN; /* each button needs a hotkey */
if (idx < HAS_HOTKEY_LEN - 1)
has_hotkey[++idx] = FALSE;
}
}
else if (*r == DLG_HOTKEY_CHAR || first_hotkey)
{
if (*r == DLG_HOTKEY_CHAR)
++r;
first_hotkey = FALSE;
if (copy)
{
if (*r == DLG_HOTKEY_CHAR) /* '&&a' -> '&a' */
*msgp++ = *r;
else
{
/* '&a' -> '[a]' */
*msgp++ = (dfltbutton == 1) ? '[' : '(';
msgp += copy_char(r, msgp, FALSE);
*msgp++ = (dfltbutton == 1) ? ']' : ')';
/* redefine hotkey */
(void)copy_char(r, hotkp, TRUE);
}
}
else
{
++len; /* '&a' -> '[a]' */
if (idx < HAS_HOTKEY_LEN - 1)
has_hotkey[idx] = TRUE;
}
}
else
{
/* everything else copy literally */
if (copy)
msgp += copy_char(r, msgp, FALSE);
}
/* advance to the next character */
mb_ptr_adv(r);
}
if (copy)
{
*msgp++ = ':';
*msgp++ = ' ';
*msgp = NUL;
mb_ptr_adv(hotkp);
*hotkp = NUL;
}
else
{
len += (int)(STRLEN(message)
+ 2 /* for the NL's */
+ STRLEN(buttons)
+ 3); /* for the ": " and NUL */
lenhotkey++; /* for the NUL */
/* If no hotkey is specified first char is used. */
if (!has_hotkey[0])
{
first_hotkey = TRUE;
len += 2; /* "x" -> "[x]" */
}
/*
* 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);
msgp = confirm_msg + 1 + STRLEN(message);
hotkp = hotk;
/* define first default hotkey */
(void)copy_char(buttons, hotkp, TRUE);
/* Remember where the choices start, displaying starts here when
* "hotkp" typed at the more prompt. */
confirm_msg_tail = msgp;
*msgp++ = '\n';
}
}
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 */
++confirm_msg_used;
if (confirm_msg != NULL)
msg_puts_attr(confirm_msg, hl_attr(HLF_M));
--confirm_msg_used;
}
#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(flags, title, dflt, ext, initdir, filter, buf)
int flags; /* BROWSE_SAVE and BROWSE_DIR */
char_u *title; /* title for the window */
char_u *dflt; /* default file name (may include directory) */
char_u *ext; /* extension added */
char_u *initdir; /* initial directory, NULL for current dir or
when using path from "dflt" */
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;
int save_browse = cmdmod.browse;
/* Must turn off browse to avoid that autocommands will get the
* flag too! */
cmdmod.browse = FALSE;
if (title == NULL || *title == NUL)
{
if (flags & BROWSE_DIR)
title = (char_u *)_("Select Directory dialog");
else if (flags & BROWSE_SAVE)
title = (char_u *)_("Save File dialog");
else
title = (char_u *)_("Open File dialog");
}
/* When no directory specified, use default file name, default dir, buffer
* dir, last dir or current dir */
if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL)
{
if (mch_isdir(dflt)) /* default file name is a directory */
{
initdir = dflt;
dflt = NULL;
}
else if (gettail(dflt) != dflt) /* default file name includes a path */
{
tofree = vim_strsave(dflt);
if (tofree != NULL)
{
initdir = tofree;
*gettail(initdir) = NUL;
dflt = gettail(dflt);
}
}
}
if (initdir == NULL || *initdir == NUL)
{
/* When 'browsedir' is a directory, use it */
if (STRCMP(p_bsdir, "last") != 0
&& STRCMP(p_bsdir, "buffer") != 0
&& STRCMP(p_bsdir, "current") != 0
&& mch_isdir(p_bsdir))
initdir = p_bsdir;
/* When saving or 'browsedir' is "buffer", use buffer fname */
else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b')
&& buf != NULL && buf->b_ffname != NULL)
{
if (dflt == NULL || *dflt == NUL)
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;
if (flags & BROWSE_DIR)
{
# if defined(HAVE_GTK2) || defined(WIN3264)
/* For systems that have a directory dialog. */
fname = gui_mch_browsedir(title, initdir);
# else
/* Generic solution for selecting a directory: select a file and
* remove the file name. */
fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)"");
# endif
# if !defined(HAVE_GTK2)
/* Win32 adds a dummy file name, others return an arbitrary file
* name. GTK+ 2 returns only the directory, */
if (fname != NULL && *fname != NUL && !mch_isdir(fname))
{
/* Remove the file name. */
char_u *tail = gettail_sep(fname);
if (tail == fname)
*tail++ = '.'; /* use current dir */
*tail = NUL;
}
# endif
}
else
fname = gui_mch_browse(flags & BROWSE_SAVE,
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 && !(flags & BROWSE_DIR))
{
*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);
cmdmod.browse = save_browse;
return fname;
}
#endif
#if defined(HAVE_STDARG_H) && defined(FEAT_EVAL)
static char *e_printf = N_("E766: Insufficient arguments for printf()");
static long tv_nr __ARGS((typval_T *tvs, int *idxp));
static char *tv_str __ARGS((typval_T *tvs, int *idxp));
/*
* Get number argument from "idxp" entry in "tvs". First entry is 1.
*/
static long
tv_nr(tvs, idxp)
typval_T *tvs;
int *idxp;
{
int idx = *idxp - 1;
long n = 0;
int err = FALSE;
if (tvs[idx].v_type == VAR_UNKNOWN)
EMSG(_(e_printf));
else
{
++*idxp;
n = get_tv_number_chk(&tvs[idx], &err);
if (err)
n = 0;
}
return n;
}
/*
* Get string argument from "idxp" entry in "tvs". First entry is 1.
* Returns NULL for an error.
*/
static char *
tv_str(tvs, idxp)
typval_T *tvs;
int *idxp;
{
int idx = *idxp - 1;
char *s = NULL;
if (tvs[idx].v_type == VAR_UNKNOWN)
EMSG(_(e_printf));
else
{
++*idxp;
s = (char *)get_tv_string_chk(&tvs[idx]);
}
return s;
}
#endif
/*
* This code was included to provide a portable vsnprintf() and snprintf().
* Some systems may provide their own, but we always use this one for
* consistency.
*
* This code is based on snprintf.c - a portable implementation of snprintf
* by Mark Martinec <[email protected]>, Version 2.2, 2000-10-06.
* Included with permission. It was heavily modified to fit in Vim.
* The original code, including useful comments, can be found here:
* http://www.ijs.si/software/snprintf/
*
* This snprintf() only supports the following conversion specifiers:
* s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below)
* with flags: '-', '+', ' ', '0' and '#'.
* An asterisk is supported for field width as well as precision.
*
* Length modifiers 'h' (short int) and 'l' (long int) are supported.
* 'll' (long long int) is not supported.
*
* The locale is not used, the string is used as a byte string. This is only
* relevant for double-byte encodings where the second byte may be '%'.
*
* It is permitted for "str_m" to be zero, and it is permitted to specify NULL
* pointer for resulting string argument if "str_m" is zero (as per ISO C99).
*
* The return value is the number of characters which would be generated
* for the given input, excluding the trailing null. If this value
* is greater or equal to "str_m", not all characters from the result
* have been stored in str, output bytes beyond the ("str_m"-1) -th character
* are discarded. If "str_m" is greater than zero it is guaranteed
* the resulting string will be null-terminated.
*/
/*
* When va_list is not supported we only define vim_snprintf().
*
* vim_vsnprintf() can be invoked with either "va_list" or a list of
* "typval_T". When the latter is not used it must be NULL.
*/
/* When generating prototypes all of this is skipped, cproto doesn't
* understand this. */
#ifndef PROTO
# ifdef HAVE_STDARG_H
int
vim_snprintf(char *str, size_t str_m, char *fmt, ...)
{
va_list ap;
int str_l;
va_start(ap, fmt);
str_l = vim_vsnprintf(str, str_m, fmt, ap, NULL);
va_end(ap);
return str_l;
}
int
vim_vsnprintf(str, str_m, fmt, ap, tvs)
# else
/* clumsy way to work around missing va_list */
# define get_a_arg(i) (++i, i == 2 ? a1 : i == 3 ? a2 : i == 4 ? a3 : i == 5 ? a4 : i == 6 ? a5 : i == 7 ? a6 : i == 8 ? a7 : i == 9 ? a8 : i == 10 ? a9 : a10)
/* VARARGS */
int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
vim_snprintf(str, str_m, fmt, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)
# endif
char *str;
size_t str_m;
char *fmt;
# ifdef HAVE_STDARG_H
va_list ap;
typval_T *tvs;
# else
long a1, a2, a3, a4, a5, a6, a7, a8, a9, a10;
# endif
{
size_t str_l = 0;
char *p = fmt;
int arg_idx = 1;
if (p == NULL)
p = "";
while (*p != NUL)
{
if (*p != '%')
{
char *q = strchr(p + 1, '%');
size_t n = (q == NULL) ? STRLEN(p) : (q - p);
/* Copy up to the next '%' or NUL without any changes. */
if (str_l < str_m)
{
size_t avail = str_m - str_l;
mch_memmove(str + str_l, p, n > avail ? avail : n);
}
p += n;
str_l += n;
}
else
{
size_t min_field_width = 0, precision = 0;
int zero_padding = 0, precision_specified = 0, justify_left = 0;
int alternate_form = 0, force_sign = 0;
/* If both the ' ' and '+' flags appear, the ' ' flag should be
* ignored. */
int space_for_positive = 1;
/* allowed values: \0, h, l, L */
char length_modifier = '\0';
/* temporary buffer for simple numeric->string conversion */
char tmp[32];
/* string address in case of string argument */
char *str_arg;
/* natural field width of arg without padding and sign */
size_t str_arg_l;
/* unsigned char argument value - only defined for c conversion.
* N.B. standard explicitly states the char argument for the c
* conversion is unsigned */
unsigned char uchar_arg;
/* number of zeros to be inserted for numeric conversions as
* required by the precision or minimal field width */
size_t number_of_zeros_to_pad = 0;
/* index into tmp where zero padding is to be inserted */
size_t zero_padding_insertion_ind = 0;
/* current conversion specifier character */
char fmt_spec = '\0';
str_arg = NULL;
p++; /* skip '%' */
/* parse flags */
while (*p == '0' || *p == '-' || *p == '+' || *p == ' '
|| *p == '#' || *p == '\'')
{
switch (*p)
{
case '0': zero_padding = 1; break;
case '-': justify_left = 1; break;
case '+': force_sign = 1; space_for_positive = 0; break;
case ' ': force_sign = 1;
/* If both the ' ' and '+' flags appear, the ' '
* flag should be ignored */
break;
case '#': alternate_form = 1; break;
case '\'': break;
}
p++;
}
/* If the '0' and '-' flags both appear, the '0' flag should be
* ignored. */
/* parse field width */
if (*p == '*')
{
int j;
p++;
j =
#ifndef HAVE_STDARG_H
get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? tv_nr(tvs, &arg_idx) :
# endif
va_arg(ap, int);
#endif
if (j >= 0)
min_field_width = j;
else
{
min_field_width = -j;
justify_left = 1;
}
}
else if (VIM_ISDIGIT((int)(*p)))
{
/* size_t could be wider than unsigned int; make sure we treat
* argument like common implementations do */
unsigned int uj = *p++ - '0';
while (VIM_ISDIGIT((int)(*p)))
uj = 10 * uj + (unsigned int)(*p++ - '0');
min_field_width = uj;
}
/* parse precision */
if (*p == '.')
{
p++;
precision_specified = 1;
if (*p == '*')
{
int j;
j =
#ifndef HAVE_STDARG_H
get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? tv_nr(tvs, &arg_idx) :
# endif
va_arg(ap, int);
#endif
p++;
if (j >= 0)
precision = j;
else
{
precision_specified = 0;
precision = 0;
}
}
else if (VIM_ISDIGIT((int)(*p)))
{
/* size_t could be wider than unsigned int; make sure we
* treat argument like common implementations do */
unsigned int uj = *p++ - '0';
while (VIM_ISDIGIT((int)(*p)))
uj = 10 * uj + (unsigned int)(*p++ - '0');
precision = uj;
}
}
/* parse 'h', 'l' and 'll' length modifiers */
if (*p == 'h' || *p == 'l')
{
length_modifier = *p;
p++;
if (length_modifier == 'l' && *p == 'l')
{
/* double l = long long */
length_modifier = 'l'; /* treat it as a single 'l' */
p++;
}
}
fmt_spec = *p;
/* common synonyms: */
switch (fmt_spec)
{
case 'i': fmt_spec = 'd'; break;
case 'D': fmt_spec = 'd'; length_modifier = 'l'; break;
case 'U': fmt_spec = 'u'; length_modifier = 'l'; break;
case 'O': fmt_spec = 'o'; length_modifier = 'l'; break;
default: break;
}
/* get parameter value, do initial processing */
switch (fmt_spec)
{
/* '%' and 'c' behave similar to 's' regarding flags and field
* widths */
case '%':
case 'c':
case 's':
length_modifier = '\0';
str_arg_l = 1;
switch (fmt_spec)
{
case '%':
str_arg = p;
break;
case 'c':
{
int j;
j =
#ifndef HAVE_STDARG_H
get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? tv_nr(tvs, &arg_idx) :
# endif
va_arg(ap, int);
#endif
/* standard demands unsigned char */
uchar_arg = (unsigned char)j;
str_arg = (char *)&uchar_arg;
break;
}
case 's':
str_arg =
#ifndef HAVE_STDARG_H
(char *)get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? tv_str(tvs, &arg_idx) :
# endif
va_arg(ap, char *);
#endif
if (str_arg == NULL)
{
str_arg = "[NULL]";
str_arg_l = 6;
}
/* make sure not to address string beyond the specified
* precision !!! */
else if (!precision_specified)
str_arg_l = strlen(str_arg);
/* truncate string if necessary as requested by precision */
else if (precision == 0)
str_arg_l = 0;
else
{
/* Don't put the #if inside memchr(), it can be a
* macro. */
#if SIZEOF_INT <= 2
char *q = memchr(str_arg, '\0', precision);
#else
/* memchr on HP does not like n > 2^31 !!! */
char *q = memchr(str_arg, '\0',
precision <= (size_t)0x7fffffffL ? precision
: (size_t)0x7fffffffL);
#endif
str_arg_l = (q == NULL) ? precision : q - str_arg;
}
break;
default:
break;
}
break;
case 'd': case 'u': case 'o': case 'x': case 'X': case 'p':
{
/* NOTE: the u, o, x, X and p conversion specifiers
* imply the value is unsigned; d implies a signed
* value */
/* 0 if numeric argument is zero (or if pointer is
* NULL for 'p'), +1 if greater than zero (or nonzero
* for unsigned arguments), -1 if negative (unsigned
* argument is never negative) */
int arg_sign = 0;
/* only defined for length modifier h, or for no
* length modifiers */
int int_arg = 0;
unsigned int uint_arg = 0;
/* only defined for length modifier l */
long int long_arg = 0;
unsigned long int ulong_arg = 0;
/* pointer argument value -only defined for p
* conversion */
void *ptr_arg = NULL;
if (fmt_spec == 'p')
{
length_modifier = '\0';
ptr_arg =
#ifndef HAVE_STDARG_H
(void *)get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? (void *)tv_str(tvs, &arg_idx) :
# endif
va_arg(ap, void *);
#endif
if (ptr_arg != NULL)
arg_sign = 1;
}
else if (fmt_spec == 'd')
{
/* signed */
switch (length_modifier)
{
case '\0':
case 'h':
/* char and short arguments are passed as int. */
int_arg =
#ifndef HAVE_STDARG_H
get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? tv_nr(tvs, &arg_idx) :
# endif
va_arg(ap, int);
#endif
if (int_arg > 0)
arg_sign = 1;
else if (int_arg < 0)
arg_sign = -1;
break;
case 'l':
long_arg =
#ifndef HAVE_STDARG_H
get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? tv_nr(tvs, &arg_idx) :
# endif
va_arg(ap, long int);
#endif
if (long_arg > 0)
arg_sign = 1;
else if (long_arg < 0)
arg_sign = -1;
break;
}
}
else
{
/* unsigned */
switch (length_modifier)
{
case '\0':
case 'h':
uint_arg =
#ifndef HAVE_STDARG_H
get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? tv_nr(tvs, &arg_idx) :
# endif
va_arg(ap, unsigned int);
#endif
if (uint_arg != 0)
arg_sign = 1;
break;
case 'l':
ulong_arg =
#ifndef HAVE_STDARG_H
get_a_arg(arg_idx);
#else
# if defined(FEAT_EVAL)
tvs != NULL ? tv_nr(tvs, &arg_idx) :
# endif
va_arg(ap, unsigned long int);
#endif
if (ulong_arg != 0)
arg_sign = 1;
break;
}
}
str_arg = tmp;
str_arg_l = 0;
/* NOTE:
* For d, i, u, o, x, and X conversions, if precision is
* specified, the '0' flag should be ignored. This is so
* with Solaris 2.6, Digital UNIX 4.0, HPUX 10, Linux,
* FreeBSD, NetBSD; but not with Perl.
*/
if (precision_specified)
zero_padding = 0;
if (fmt_spec == 'd')
{
if (force_sign && arg_sign >= 0)
tmp[str_arg_l++] = space_for_positive ? ' ' : '+';
/* leave negative numbers for sprintf to handle, to
* avoid handling tricky cases like (short int)-32768 */
}
else if (alternate_form)
{
if (arg_sign != 0
&& (fmt_spec == 'x' || fmt_spec == 'X') )
{
tmp[str_arg_l++] = '0';
tmp[str_arg_l++] = fmt_spec;
}
/* alternate form should have no effect for p
* conversion, but ... */
}
zero_padding_insertion_ind = str_arg_l;
if (!precision_specified)
precision = 1; /* default precision is 1 */
if (precision == 0 && arg_sign == 0)
{
/* When zero value is formatted with an explicit
* precision 0, the resulting formatted string is
* empty (d, i, u, o, x, X, p). */
}
else
{
char f[5];
int f_l = 0;
/* construct a simple format string for sprintf */
f[f_l++] = '%';
if (!length_modifier)
;
else if (length_modifier == '2')
{
f[f_l++] = 'l';
f[f_l++] = 'l';
}
else
f[f_l++] = length_modifier;
f[f_l++] = fmt_spec;
f[f_l++] = '\0';
if (fmt_spec == 'p')
str_arg_l += sprintf(tmp + str_arg_l, f, ptr_arg);
else if (fmt_spec == 'd')
{
/* signed */
switch (length_modifier)
{
case '\0':
case 'h': str_arg_l += sprintf(
tmp + str_arg_l, f, int_arg);
break;
case 'l': str_arg_l += sprintf(
tmp + str_arg_l, f, long_arg);
break;
}
}
else
{
/* unsigned */
switch (length_modifier)
{
case '\0':
case 'h': str_arg_l += sprintf(
tmp + str_arg_l, f, uint_arg);
break;
case 'l': str_arg_l += sprintf(
tmp + str_arg_l, f, ulong_arg);
break;
}
}
/* include the optional minus sign and possible
* "0x" in the region before the zero padding
* insertion point */
if (zero_padding_insertion_ind < str_arg_l
&& tmp[zero_padding_insertion_ind] == '-')
zero_padding_insertion_ind++;
if (zero_padding_insertion_ind + 1 < str_arg_l
&& tmp[zero_padding_insertion_ind] == '0'
&& (tmp[zero_padding_insertion_ind + 1] == 'x'
|| tmp[zero_padding_insertion_ind + 1] == 'X'))
zero_padding_insertion_ind += 2;
}
{
size_t num_of_digits = str_arg_l
- zero_padding_insertion_ind;
if (alternate_form && fmt_spec == 'o'
/* unless zero is already the first
* character */
&& !(zero_padding_insertion_ind < str_arg_l
&& tmp[zero_padding_insertion_ind] == '0'))
{
/* assure leading zero for alternate-form
* octal numbers */
if (!precision_specified
|| precision < num_of_digits + 1)
{
/* precision is increased to force the
* first character to be zero, except if a
* zero value is formatted with an
* explicit precision of zero */
precision = num_of_digits + 1;
precision_specified = 1;
}
}
/* zero padding to specified precision? */
if (num_of_digits < precision)
number_of_zeros_to_pad = precision - num_of_digits;
}
/* zero padding to specified minimal field width? */
if (!justify_left && zero_padding)
{
int n = (int)(min_field_width - (str_arg_l
+ number_of_zeros_to_pad));
if (n > 0)
number_of_zeros_to_pad += n;
}
break;
}
default:
/* unrecognized conversion specifier, keep format string
* as-is */
zero_padding = 0; /* turn zero padding off for non-numeric
conversion */
justify_left = 1;
min_field_width = 0; /* reset flags */
/* discard the unrecognized conversion, just keep *
* the unrecognized conversion character */
str_arg = p;
str_arg_l = 0;
if (*p != NUL)
str_arg_l++; /* include invalid conversion specifier
unchanged if not at end-of-string */
break;
}
if (*p != NUL)
p++; /* step over the just processed conversion specifier */
/* insert padding to the left as requested by min_field_width;
* this does not include the zero padding in case of numerical
* conversions*/
if (!justify_left)
{
/* left padding with blank or zero */
int pn = (int)(min_field_width - (str_arg_l + number_of_zeros_to_pad));
if (pn > 0)
{
if (str_l < str_m)
{
size_t avail = str_m - str_l;
vim_memset(str + str_l, zero_padding ? '0' : ' ',
(size_t)pn > avail ? avail : pn);
}
str_l += pn;
}
}
/* zero padding as requested by the precision or by the minimal
* field width for numeric conversions required? */
if (number_of_zeros_to_pad == 0)
{
/* will not copy first part of numeric right now, *
* force it to be copied later in its entirety */
zero_padding_insertion_ind = 0;
}
else
{
/* insert first part of numerics (sign or '0x') before zero
* padding */
int zn = (int)zero_padding_insertion_ind;
if (zn > 0)
{
if (str_l < str_m)
{
size_t avail = str_m - str_l;
mch_memmove(str + str_l, str_arg,
(size_t)zn > avail ? avail : zn);
}
str_l += zn;
}
/* insert zero padding as requested by the precision or min
* field width */
zn = (int)number_of_zeros_to_pad;
if (zn > 0)
{
if (str_l < str_m)
{
size_t avail = str_m-str_l;
vim_memset(str + str_l, '0',
(size_t)zn > avail ? avail : zn);
}
str_l += zn;
}
}
/* insert formatted string
* (or as-is conversion specifier for unknown conversions) */
{
int sn = (int)(str_arg_l - zero_padding_insertion_ind);
if (sn > 0)
{
if (str_l < str_m)
{
size_t avail = str_m - str_l;
mch_memmove(str + str_l,
str_arg + zero_padding_insertion_ind,
(size_t)sn > avail ? avail : sn);
}
str_l += sn;
}
}
/* insert right padding */
if (justify_left)
{
/* right blank padding to the field width */
int pn = (int)(min_field_width - (str_arg_l + number_of_zeros_to_pad));
if (pn > 0)
{
if (str_l < str_m)
{
size_t avail = str_m - str_l;
vim_memset(str + str_l, ' ',
(size_t)pn > avail ? avail : pn);
}
str_l += pn;
}
}
}
}
if (str_m > 0)
{
/* make sure the string is nul-terminated even at the expense of
* overwriting the last character (shouldn't happen, but just in case)
* */
str[str_l <= str_m - 1 ? str_l : str_m - 1] = '\0';
}
#ifdef HAVE_STDARG_H
if (tvs != NULL && tvs[arg_idx - 1].v_type != VAR_UNKNOWN)
EMSG(_("E767: Too many arguments to printf()"));
#endif
/* Return the number of characters formatted (excluding trailing nul
* character), that is, the number of characters that would have been
* written to the buffer if it were large enough. */
return (int)str_l;
}
#endif /* PROTO */