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vim/src/ex_cmds.c
Bram Moolenaar 86b6835997 updated for version 7.0025
2004-12-27 21:59:20 +00:00

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/* vi:set ts=8 sts=4 sw=4:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* ex_cmds.c: some functions for command line commands
*/
#include "vim.h"
#include "version.h"
#ifdef FEAT_EX_EXTRA
static int linelen __ARGS((int *has_tab));
#endif
static void do_filter __ARGS((linenr_T line1, linenr_T line2, exarg_T *eap, char_u *cmd, int do_in, int do_out));
#ifdef FEAT_VIMINFO
static char_u *viminfo_filename __ARGS((char_u *));
static void do_viminfo __ARGS((FILE *fp_in, FILE *fp_out, int want_info, int want_marks, int force_read));
static int viminfo_encoding __ARGS((vir_T *virp));
static int read_viminfo_up_to_marks __ARGS((vir_T *virp, int forceit, int writing));
#endif
static int check_overwrite __ARGS((exarg_T *eap, buf_T *buf, char_u *fname, char_u *ffname, int other));
static int check_readonly __ARGS((int *forceit, buf_T *buf));
#ifdef FEAT_AUTOCMD
static void delbuf_msg __ARGS((char_u *name));
#endif
static int do_sub_msg __ARGS((void));
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
help_compare __ARGS((const void *s1, const void *s2));
/*
* ":ascii" and "ga".
*/
/*ARGSUSED*/
void
do_ascii(eap)
exarg_T *eap;
{
int c;
char buf1[20];
char buf2[20];
char_u buf3[7];
#ifdef FEAT_MBYTE
int c1 = 0;
int c2 = 0;
int len;
if (enc_utf8)
c = utfc_ptr2char(ml_get_cursor(), &c1, &c2);
else
#endif
c = gchar_cursor();
if (c == NUL)
{
MSG("NUL");
return;
}
#ifdef FEAT_MBYTE
IObuff[0] = NUL;
if (!has_mbyte || (enc_dbcs != 0 && c < 0x100) || c < 0x80)
#endif
{
if (c == NL) /* NUL is stored as NL */
c = NUL;
if (vim_isprintc_strict(c) && (c < ' '
#ifndef EBCDIC
|| c > '~'
#endif
))
{
transchar_nonprint(buf3, c);
sprintf(buf1, " <%s>", (char *)buf3);
}
else
buf1[0] = NUL;
#ifndef EBCDIC
if (c >= 0x80)
sprintf(buf2, " <M-%s>", transchar(c & 0x7f));
else
#endif
buf2[0] = NUL;
sprintf((char *)IObuff, _("<%s>%s%s %d, Hex %02x, Octal %03o"),
transchar(c), buf1, buf2, c, c, c);
#ifdef FEAT_MBYTE
c = c1;
c1 = c2;
c2 = 0;
#endif
}
#ifdef FEAT_MBYTE
/* Repeat for combining characters. */
while (has_mbyte && (c >= 0x100 || (enc_utf8 && c >= 0x80)))
{
len = (int)STRLEN(IObuff);
/* This assumes every multi-byte char is printable... */
if (len > 0)
IObuff[len++] = ' ';
IObuff[len++] = '<';
if (utf_iscomposing(c)
#ifdef USE_GUI
&& !gui.in_use
#endif
)
IObuff[len++] = ' '; /* draw composing char on top of a space */
IObuff[len + (*mb_char2bytes)(c, IObuff + len)] = NUL;
sprintf((char *)IObuff + STRLEN(IObuff),
c < 0x10000 ? _("> %d, Hex %04x, Octal %o")
: _("> %d, Hex %08x, Octal %o"), c, c, c);
c = c1;
c1 = c2;
c2 = 0;
}
#endif
msg(IObuff);
}
#if defined(FEAT_EX_EXTRA) || defined(PROTO)
/*
* ":left", ":center" and ":right": align text.
*/
void
ex_align(eap)
exarg_T *eap;
{
pos_T save_curpos;
int len;
int indent = 0;
int new_indent;
int has_tab;
int width;
#ifdef FEAT_RIGHTLEFT
if (curwin->w_p_rl)
{
/* switch left and right aligning */
if (eap->cmdidx == CMD_right)
eap->cmdidx = CMD_left;
else if (eap->cmdidx == CMD_left)
eap->cmdidx = CMD_right;
}
#endif
width = atoi((char *)eap->arg);
save_curpos = curwin->w_cursor;
if (eap->cmdidx == CMD_left) /* width is used for new indent */
{
if (width >= 0)
indent = width;
}
else
{
/*
* if 'textwidth' set, use it
* else if 'wrapmargin' set, use it
* if invalid value, use 80
*/
if (width <= 0)
width = curbuf->b_p_tw;
if (width == 0 && curbuf->b_p_wm > 0)
width = W_WIDTH(curwin) - curbuf->b_p_wm;
if (width <= 0)
width = 80;
}
if (u_save((linenr_T)(eap->line1 - 1), (linenr_T)(eap->line2 + 1)) == FAIL)
return;
for (curwin->w_cursor.lnum = eap->line1;
curwin->w_cursor.lnum <= eap->line2; ++curwin->w_cursor.lnum)
{
if (eap->cmdidx == CMD_left) /* left align */
new_indent = indent;
else
{
len = linelen(eap->cmdidx == CMD_right ? &has_tab
: NULL) - get_indent();
if (len <= 0) /* skip blank lines */
continue;
if (eap->cmdidx == CMD_center)
new_indent = (width - len) / 2;
else
{
new_indent = width - len; /* right align */
/*
* Make sure that embedded TABs don't make the text go too far
* to the right.
*/
if (has_tab)
while (new_indent > 0)
{
(void)set_indent(new_indent, 0);
if (linelen(NULL) <= width)
{
/*
* Now try to move the line as much as possible to
* the right. Stop when it moves too far.
*/
do
(void)set_indent(++new_indent, 0);
while (linelen(NULL) <= width);
--new_indent;
break;
}
--new_indent;
}
}
}
if (new_indent < 0)
new_indent = 0;
(void)set_indent(new_indent, 0); /* set indent */
}
changed_lines(eap->line1, 0, eap->line2 + 1, 0L);
curwin->w_cursor = save_curpos;
beginline(BL_WHITE | BL_FIX);
}
/*
* Get the length of the current line, excluding trailing white space.
*/
static int
linelen(has_tab)
int *has_tab;
{
char_u *line;
char_u *first;
char_u *last;
int save;
int len;
/* find the first non-blank character */
line = ml_get_curline();
first = skipwhite(line);
/* find the character after the last non-blank character */
for (last = first + STRLEN(first);
last > first && vim_iswhite(last[-1]); --last)
;
save = *last;
*last = NUL;
len = linetabsize(line); /* get line length */
if (has_tab != NULL) /* check for embedded TAB */
*has_tab = (vim_strrchr(first, TAB) != NULL);
*last = save;
return len;
}
/*
* ":retab".
*/
void
ex_retab(eap)
exarg_T *eap;
{
linenr_T lnum;
int got_tab = FALSE;
long num_spaces = 0;
long num_tabs;
long len;
long col;
long vcol;
long start_col = 0; /* For start of white-space string */
long start_vcol = 0; /* For start of white-space string */
int temp;
long old_len;
char_u *ptr;
char_u *new_line = (char_u *)1; /* init to non-NULL */
int did_undo; /* called u_save for current line */
int new_ts;
int save_list;
linenr_T first_line = 0; /* first changed line */
linenr_T last_line = 0; /* last changed line */
save_list = curwin->w_p_list;
curwin->w_p_list = 0; /* don't want list mode here */
new_ts = getdigits(&(eap->arg));
if (new_ts < 0)
{
EMSG(_(e_positive));
return;
}
if (new_ts == 0)
new_ts = curbuf->b_p_ts;
for (lnum = eap->line1; !got_int && lnum <= eap->line2; ++lnum)
{
ptr = ml_get(lnum);
col = 0;
vcol = 0;
did_undo = FALSE;
for (;;)
{
if (vim_iswhite(ptr[col]))
{
if (!got_tab && num_spaces == 0)
{
/* First consecutive white-space */
start_vcol = vcol;
start_col = col;
}
if (ptr[col] == ' ')
num_spaces++;
else
got_tab = TRUE;
}
else
{
if (got_tab || (eap->forceit && num_spaces > 1))
{
/* Retabulate this string of white-space */
/* len is virtual length of white string */
len = num_spaces = vcol - start_vcol;
num_tabs = 0;
if (!curbuf->b_p_et)
{
temp = new_ts - (start_vcol % new_ts);
if (num_spaces >= temp)
{
num_spaces -= temp;
num_tabs++;
}
num_tabs += num_spaces / new_ts;
num_spaces -= (num_spaces / new_ts) * new_ts;
}
if (curbuf->b_p_et || got_tab ||
(num_spaces + num_tabs < len))
{
if (did_undo == FALSE)
{
did_undo = TRUE;
if (u_save((linenr_T)(lnum - 1),
(linenr_T)(lnum + 1)) == FAIL)
{
new_line = NULL; /* flag out-of-memory */
break;
}
}
/* len is actual number of white characters used */
len = num_spaces + num_tabs;
old_len = (long)STRLEN(ptr);
new_line = lalloc(old_len - col + start_col + len + 1,
TRUE);
if (new_line == NULL)
break;
if (start_col > 0)
mch_memmove(new_line, ptr, (size_t)start_col);
mch_memmove(new_line + start_col + len,
ptr + col, (size_t)(old_len - col + 1));
ptr = new_line + start_col;
for (col = 0; col < len; col++)
ptr[col] = (col < num_tabs) ? '\t' : ' ';
ml_replace(lnum, new_line, FALSE);
if (first_line == 0)
first_line = lnum;
last_line = lnum;
ptr = new_line;
col = start_col + len;
}
}
got_tab = FALSE;
num_spaces = 0;
}
if (ptr[col] == NUL)
break;
vcol += chartabsize(ptr + col, (colnr_T)vcol);
#ifdef FEAT_MBYTE
if (has_mbyte)
col += (*mb_ptr2len_check)(ptr + col);
else
#endif
++col;
}
if (new_line == NULL) /* out of memory */
break;
line_breakcheck();
}
if (got_int)
EMSG(_(e_interr));
if (curbuf->b_p_ts != new_ts)
redraw_curbuf_later(NOT_VALID);
if (first_line != 0)
changed_lines(first_line, 0, last_line + 1, 0L);
curwin->w_p_list = save_list; /* restore 'list' */
curbuf->b_p_ts = new_ts;
coladvance(curwin->w_curswant);
u_clearline();
}
#endif
/*
* :move command - move lines line1-line2 to line dest
*
* return FAIL for failure, OK otherwise
*/
int
do_move(line1, line2, dest)
linenr_T line1;
linenr_T line2;
linenr_T dest;
{
char_u *str;
linenr_T l;
linenr_T extra; /* Num lines added before line1 */
linenr_T num_lines; /* Num lines moved */
linenr_T last_line; /* Last line in file after adding new text */
if (dest >= line1 && dest < line2)
{
EMSG(_("E134: Move lines into themselves"));
return FAIL;
}
num_lines = line2 - line1 + 1;
/*
* First we copy the old text to its new location -- webb
* Also copy the flag that ":global" command uses.
*/
if (u_save(dest, dest + 1) == FAIL)
return FAIL;
for (extra = 0, l = line1; l <= line2; l++)
{
str = vim_strsave(ml_get(l + extra));
if (str != NULL)
{
ml_append(dest + l - line1, str, (colnr_T)0, FALSE);
vim_free(str);
if (dest < line1)
extra++;
}
}
/*
* Now we must be careful adjusting our marks so that we don't overlap our
* mark_adjust() calls.
*
* We adjust the marks within the old text so that they refer to the
* last lines of the file (temporarily), because we know no other marks
* will be set there since these line numbers did not exist until we added
* our new lines.
*
* Then we adjust the marks on lines between the old and new text positions
* (either forwards or backwards).
*
* And Finally we adjust the marks we put at the end of the file back to
* their final destination at the new text position -- webb
*/
last_line = curbuf->b_ml.ml_line_count;
mark_adjust(line1, line2, last_line - line2, 0L);
if (dest >= line2)
{
mark_adjust(line2 + 1, dest, -num_lines, 0L);
curbuf->b_op_start.lnum = dest - num_lines + 1;
curbuf->b_op_end.lnum = dest;
}
else
{
mark_adjust(dest + 1, line1 - 1, num_lines, 0L);
curbuf->b_op_start.lnum = dest + 1;
curbuf->b_op_end.lnum = dest + num_lines;
}
curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
mark_adjust(last_line - num_lines + 1, last_line,
-(last_line - dest - extra), 0L);
/*
* Now we delete the original text -- webb
*/
if (u_save(line1 + extra - 1, line2 + extra + 1) == FAIL)
return FAIL;
for (l = line1; l <= line2; l++)
ml_delete(line1 + extra, TRUE);
if (!global_busy && num_lines > p_report)
{
if (num_lines == 1)
MSG(_("1 line moved"));
else
smsg((char_u *)_("%ld lines moved"), num_lines);
}
/*
* Leave the cursor on the last of the moved lines.
*/
if (dest >= line1)
curwin->w_cursor.lnum = dest;
else
curwin->w_cursor.lnum = dest + (line2 - line1) + 1;
if (line1 < dest)
changed_lines(line1, 0, dest + num_lines + 1, 0L);
else
changed_lines(dest + 1, 0, line1 + num_lines, 0L);
return OK;
}
/*
* ":copy"
*/
void
ex_copy(line1, line2, n)
linenr_T line1;
linenr_T line2;
linenr_T n;
{
linenr_T count;
char_u *p;
count = line2 - line1 + 1;
curbuf->b_op_start.lnum = n + 1;
curbuf->b_op_end.lnum = n + count;
curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
/*
* there are three situations:
* 1. destination is above line1
* 2. destination is between line1 and line2
* 3. destination is below line2
*
* n = destination (when starting)
* curwin->w_cursor.lnum = destination (while copying)
* line1 = start of source (while copying)
* line2 = end of source (while copying)
*/
if (u_save(n, n + 1) == FAIL)
return;
curwin->w_cursor.lnum = n;
while (line1 <= line2)
{
/* need to use vim_strsave() because the line will be unlocked within
* ml_append() */
p = vim_strsave(ml_get(line1));
if (p != NULL)
{
ml_append(curwin->w_cursor.lnum, p, (colnr_T)0, FALSE);
vim_free(p);
}
/* situation 2: skip already copied lines */
if (line1 == n)
line1 = curwin->w_cursor.lnum;
++line1;
if (curwin->w_cursor.lnum < line1)
++line1;
if (curwin->w_cursor.lnum < line2)
++line2;
++curwin->w_cursor.lnum;
}
appended_lines_mark(n, count);
msgmore((long)count);
}
/*
* Handle the ":!cmd" command. Also for ":r !cmd" and ":w !cmd"
* Bangs in the argument are replaced with the previously entered command.
* Remember the argument.
*
* RISCOS: Bangs only replaced when followed by a space, since many
* pathnames contain one.
*/
void
do_bang(addr_count, eap, forceit, do_in, do_out)
int addr_count;
exarg_T *eap;
int forceit;
int do_in, do_out;
{
char_u *arg = eap->arg; /* command */
linenr_T line1 = eap->line1; /* start of range */
linenr_T line2 = eap->line2; /* end of range */
static char_u *prevcmd = NULL; /* the previous command */
char_u *newcmd = NULL; /* the new command */
int free_newcmd = FALSE; /* need to free() newcmd */
int ins_prevcmd;
char_u *t;
char_u *p;
char_u *trailarg;
int len;
int scroll_save = msg_scroll;
/*
* Disallow shell commands for "rvim".
* Disallow shell commands from .exrc and .vimrc in current directory for
* security reasons.
*/
if (check_restricted() || check_secure())
return;
if (addr_count == 0) /* :! */
{
msg_scroll = FALSE; /* don't scroll here */
autowrite_all();
msg_scroll = scroll_save;
}
/*
* Try to find an embedded bang, like in :!<cmd> ! [args]
* (:!! is indicated by the 'forceit' variable)
*/
ins_prevcmd = forceit;
trailarg = arg;
do
{
len = (int)STRLEN(trailarg) + 1;
if (newcmd != NULL)
len += (int)STRLEN(newcmd);
if (ins_prevcmd)
{
if (prevcmd == NULL)
{
EMSG(_(e_noprev));
vim_free(newcmd);
return;
}
len += (int)STRLEN(prevcmd);
}
if ((t = alloc(len)) == NULL)
{
vim_free(newcmd);
return;
}
*t = NUL;
if (newcmd != NULL)
STRCAT(t, newcmd);
if (ins_prevcmd)
STRCAT(t, prevcmd);
p = t + STRLEN(t);
STRCAT(t, trailarg);
vim_free(newcmd);
newcmd = t;
/*
* Scan the rest of the argument for '!', which is replaced by the
* previous command. "\!" is replaced by "!" (this is vi compatible).
*/
trailarg = NULL;
while (*p)
{
if (*p == '!'
#ifdef RISCOS
&& (p[1] == ' ' || p[1] == NUL)
#endif
)
{
if (p > newcmd && p[-1] == '\\')
mch_memmove(p - 1, p, (size_t)(STRLEN(p) + 1));
else
{
trailarg = p;
*trailarg++ = NUL;
ins_prevcmd = TRUE;
break;
}
}
++p;
}
} while (trailarg != NULL);
vim_free(prevcmd);
prevcmd = newcmd;
if (bangredo) /* put cmd in redo buffer for ! command */
{
AppendToRedobuffLit(prevcmd);
AppendToRedobuff((char_u *)"\n");
bangredo = FALSE;
}
/*
* Add quotes around the command, for shells that need them.
*/
if (*p_shq != NUL)
{
newcmd = alloc((unsigned)(STRLEN(prevcmd) + 2 * STRLEN(p_shq) + 1));
if (newcmd == NULL)
return;
STRCPY(newcmd, p_shq);
STRCAT(newcmd, prevcmd);
STRCAT(newcmd, p_shq);
free_newcmd = TRUE;
}
if (addr_count == 0) /* :! */
{
/* echo the command */
msg_start();
msg_putchar(':');
msg_putchar('!');
msg_outtrans(newcmd);
msg_clr_eos();
windgoto(msg_row, msg_col);
do_shell(newcmd, 0);
}
else /* :range! */
/* Careful: This may recursively call do_bang() again! (because of
* autocommands) */
do_filter(line1, line2, eap, newcmd, do_in, do_out);
if (free_newcmd)
vim_free(newcmd);
}
/*
* do_filter: filter lines through a command given by the user
*
* We use temp files and the call_shell() routine here. This would normally
* be done using pipes on a UNIX machine, but this is more portable to
* non-unix machines. The call_shell() routine needs to be able
* to deal with redirection somehow, and should handle things like looking
* at the PATH env. variable, and adding reasonable extensions to the
* command name given by the user. All reasonable versions of call_shell()
* do this.
* We use input redirection if do_in is TRUE.
* We use output redirection if do_out is TRUE.
*/
static void
do_filter(line1, line2, eap, cmd, do_in, do_out)
linenr_T line1, line2;
exarg_T *eap; /* for forced 'ff' and 'fenc' */
char_u *cmd;
int do_in, do_out;
{
char_u *itmp = NULL;
char_u *otmp = NULL;
linenr_T linecount;
linenr_T read_linecount;
pos_T cursor_save;
char_u *cmd_buf;
#ifdef FEAT_AUTOCMD
buf_T *old_curbuf = curbuf;
#endif
if (*cmd == NUL) /* no filter command */
return;
#ifdef WIN3264
/*
* Check if external commands are allowed now.
*/
if (can_end_termcap_mode(TRUE) == FALSE)
return;
#endif
cursor_save = curwin->w_cursor;
linecount = line2 - line1 + 1;
curwin->w_cursor.lnum = line1;
curwin->w_cursor.col = 0;
changed_line_abv_curs();
invalidate_botline();
/*
* 1. Form temp file names
* 2. Write the lines to a temp file
* 3. Run the filter command on the temp file
* 4. Read the output of the command into the buffer
* 5. Delete the original lines to be filtered
* 6. Remove the temp files
*/
if ((do_in && (itmp = vim_tempname('i')) == NULL)
|| (do_out && (otmp = vim_tempname('o')) == NULL))
{
EMSG(_(e_notmp));
goto filterend;
}
/*
* The writing and reading of temp files will not be shown.
* Vi also doesn't do this and the messages are not very informative.
*/
++no_wait_return; /* don't call wait_return() while busy */
if (do_in && buf_write(curbuf, itmp, NULL, line1, line2, eap,
FALSE, FALSE, FALSE, TRUE) == FAIL)
{
msg_putchar('\n'); /* keep message from buf_write() */
--no_wait_return;
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
if (!aborting())
#endif
(void)EMSG2(_(e_notcreate), itmp); /* will call wait_return */
goto filterend;
}
#ifdef FEAT_AUTOCMD
if (curbuf != old_curbuf)
goto filterend;
#endif
if (!do_out)
msg_putchar('\n');
cmd_buf = make_filter_cmd(cmd, itmp, otmp);
if (cmd_buf == NULL)
goto filterend;
windgoto((int)Rows - 1, 0);
cursor_on();
/*
* When not redirecting the output the command can write anything to the
* screen. If 'shellredir' is equal to ">", screen may be messed up by
* stderr output of external command. Clear the screen later.
* If do_in is FALSE, this could be something like ":r !cat", which may
* also mess up the screen, clear it later.
*/
if (!do_out || STRCMP(p_srr, ">") == 0 || !do_in)
redraw_later_clear();
/*
* When call_shell() fails wait_return() is called to give the user a
* chance to read the error messages. Otherwise errors are ignored, so you
* can see the error messages from the command that appear on stdout; use
* 'u' to fix the text
* Switch to cooked mode when not redirecting stdin, avoids that something
* like ":r !cat" hangs.
* Pass on the SHELL_DOOUT flag when the output is being redirected.
*/
if (call_shell(cmd_buf, SHELL_FILTER | SHELL_COOKED
| (do_out ? SHELL_DOOUT : 0)))
{
redraw_later_clear();
wait_return(FALSE);
}
vim_free(cmd_buf);
did_check_timestamps = FALSE;
need_check_timestamps = TRUE;
/* When interrupting the shell command, it may still have produced some
* useful output. Reset got_int here, so that readfile() won't cancel
* reading. */
ui_breakcheck();
got_int = FALSE;
if (do_out)
{
if (u_save((linenr_T)(line2), (linenr_T)(line2 + 1)) == FAIL)
goto error;
redraw_curbuf_later(VALID);
read_linecount = curbuf->b_ml.ml_line_count;
if (readfile(otmp, NULL, line2, (linenr_T)0, (linenr_T)MAXLNUM, eap,
READ_FILTER) == FAIL)
{
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
if (!aborting())
#endif
{
msg_putchar('\n');
EMSG2(_(e_notread), otmp);
}
goto error;
}
#ifdef FEAT_AUTOCMD
if (curbuf != old_curbuf)
goto filterend;
#endif
if (do_in)
{
if (cmdmod.keepmarks || vim_strchr(p_cpo, CPO_REMMARK) == NULL)
{
read_linecount = curbuf->b_ml.ml_line_count - read_linecount;
if (read_linecount >= linecount)
/* move all marks from old lines to new lines */
mark_adjust(line1, line2, linecount, 0L);
else
{
/* move marks from old lines to new lines, delete marks
* that are in deleted lines */
mark_adjust(line1, line1 + read_linecount - 1,
linecount, 0L);
mark_adjust(line1 + read_linecount, line2, MAXLNUM, 0L);
}
}
/*
* Put cursor on first filtered line for ":range!cmd".
* Adjust '[ and '] (set by buf_write()).
*/
curwin->w_cursor.lnum = line1;
del_lines(linecount, TRUE);
curbuf->b_op_start.lnum -= linecount; /* adjust '[ */
curbuf->b_op_end.lnum -= linecount; /* adjust '] */
write_lnum_adjust(-linecount); /* adjust last line
for next write */
}
else
{
/*
* Put cursor on last new line for ":r !cmd".
*/
curwin->w_cursor.lnum = curbuf->b_op_end.lnum;
linecount = curbuf->b_op_end.lnum - curbuf->b_op_start.lnum + 1;
}
beginline(BL_WHITE | BL_FIX); /* cursor on first non-blank */
--no_wait_return;
if (linecount > p_report)
{
if (do_in)
{
sprintf((char *)msg_buf, _("%ld lines filtered"),
(long)linecount);
if (msg(msg_buf) && !msg_scroll)
{
/* save message to display it after redraw */
set_keep_msg(msg_buf);
keep_msg_attr = 0;
}
}
else
msgmore((long)linecount);
}
}
else
{
error:
/* put cursor back in same position for ":w !cmd" */
curwin->w_cursor = cursor_save;
--no_wait_return;
wait_return(FALSE);
}
filterend:
#ifdef FEAT_AUTOCMD
if (curbuf != old_curbuf)
{
--no_wait_return;
EMSG(_("E135: *Filter* Autocommands must not change current buffer"));
}
#endif
if (itmp != NULL)
mch_remove(itmp);
if (otmp != NULL)
mch_remove(otmp);
vim_free(itmp);
vim_free(otmp);
}
/*
* Call a shell to execute a command.
* When "cmd" is NULL start an interactive shell.
*/
void
do_shell(cmd, flags)
char_u *cmd;
int flags; /* may be SHELL_DOOUT when output is redirected */
{
buf_T *buf;
#ifndef FEAT_GUI_MSWIN
int save_nwr;
#endif
#ifdef MSWIN
int winstart = FALSE;
#endif
/*
* Disallow shell commands for "rvim".
* Disallow shell commands from .exrc and .vimrc in current directory for
* security reasons.
*/
if (check_restricted() || check_secure())
{
msg_end();
return;
}
#ifdef MSWIN
/*
* Check if external commands are allowed now.
*/
if (can_end_termcap_mode(TRUE) == FALSE)
return;
/*
* Check if ":!start" is used.
*/
if (cmd != NULL)
winstart = (STRNICMP(cmd, "start ", 6) == 0);
#endif
/*
* For autocommands we want to get the output on the current screen, to
* avoid having to type return below.
*/
msg_putchar('\r'); /* put cursor at start of line */
#ifdef FEAT_AUTOCMD
if (!autocmd_busy)
#endif
{
#ifdef MSWIN
if (!winstart)
#endif
stoptermcap();
}
#ifdef MSWIN
if (!winstart)
#endif
msg_putchar('\n'); /* may shift screen one line up */
/* warning message before calling the shell */
if (p_warn
#ifdef FEAT_AUTOCMD
&& !autocmd_busy
#endif
&& msg_silent == 0)
for (buf = firstbuf; buf; buf = buf->b_next)
if (bufIsChanged(buf))
{
#ifdef FEAT_GUI_MSWIN
if (!winstart)
starttermcap(); /* don't want a message box here */
#endif
MSG_PUTS(_("[No write since last change]\n"));
#ifdef FEAT_GUI_MSWIN
if (!winstart)
stoptermcap();
#endif
break;
}
/* This windgoto is required for when the '\n' resulted in a "delete line
* 1" command to the terminal. */
if (!swapping_screen())
windgoto(msg_row, msg_col);
cursor_on();
(void)call_shell(cmd, SHELL_COOKED | flags);
did_check_timestamps = FALSE;
need_check_timestamps = TRUE;
/*
* put the message cursor at the end of the screen, avoids wait_return()
* to overwrite the text that the external command showed
*/
if (!swapping_screen())
{
msg_row = Rows - 1;
msg_col = 0;
}
#ifdef FEAT_AUTOCMD
if (autocmd_busy)
{
if (msg_silent == 0)
redraw_later_clear();
}
else
#endif
{
/*
* For ":sh" there is no need to call wait_return(), just redraw.
* Also for the Win32 GUI (the output is in a console window).
* Otherwise there is probably text on the screen that the user wants
* to read before redrawing, so call wait_return().
*/
#ifndef FEAT_GUI_MSWIN
if (cmd == NULL
# ifdef WIN3264
|| (winstart && !need_wait_return)
# endif
)
{
if (msg_silent == 0)
redraw_later_clear();
need_wait_return = FALSE;
}
else
{
/*
* If we switch screens when starttermcap() is called, we really
* want to wait for "hit return to continue".
*/
save_nwr = no_wait_return;
if (swapping_screen())
no_wait_return = FALSE;
# ifdef AMIGA
wait_return(term_console ? -1 : msg_silent == 0); /* see below */
# else
wait_return(msg_silent == 0);
# endif
no_wait_return = save_nwr;
}
#endif /* FEAT_GUI_W32 */
#ifdef MSWIN
if (!winstart) /* if winstart==TRUE, never stopped termcap! */
#endif
starttermcap(); /* start termcap if not done by wait_return() */
/*
* In an Amiga window redrawing is caused by asking the window size.
* If we got an interrupt this will not work. The chance that the
* window size is wrong is very small, but we need to redraw the
* screen. Don't do this if ':' hit in wait_return(). THIS IS UGLY
* but it saves an extra redraw.
*/
#ifdef AMIGA
if (skip_redraw) /* ':' hit in wait_return() */
{
if (msg_silent == 0)
redraw_later_clear();
}
else if (term_console)
{
OUT_STR(IF_EB("\033[0 q", ESC_STR "[0 q")); /* get window size */
if (got_int && msg_silent == 0)
redraw_later_clear(); /* if got_int is TRUE, redraw needed */
else
must_redraw = 0; /* no extra redraw needed */
}
#endif
}
/* display any error messages now */
display_errors();
}
/*
* Create a shell command from a command string, input redirection file and
* output redirection file.
* Returns an allocated string with the shell command, or NULL for failure.
*/
char_u *
make_filter_cmd(cmd, itmp, otmp)
char_u *cmd; /* command */
char_u *itmp; /* NULL or name of input file */
char_u *otmp; /* NULL or name of output file */
{
char_u *buf;
long_u len;
len = (long_u)STRLEN(cmd) + 3; /* "()" + NUL */
if (itmp != NULL)
len += (long_u)STRLEN(itmp) + 9; /* " { < " + " } " */
if (otmp != NULL)
len += (long_u)STRLEN(otmp) + (long_u)STRLEN(p_srr) + 2; /* " " */
buf = lalloc(len, TRUE);
if (buf == NULL)
return NULL;
#if (defined(UNIX) && !defined(ARCHIE)) || defined(OS2)
/*
* put braces around the command (for concatenated commands)
*/
sprintf((char *)buf, "(%s)", (char *)cmd);
if (itmp != NULL)
{
STRCAT(buf, " < ");
STRCAT(buf, itmp);
}
#else
/*
* for shells that don't understand braces around commands, at least allow
* the use of commands in a pipe.
*/
STRCPY(buf, cmd);
if (itmp != NULL)
{
char_u *p;
/*
* If there is a pipe, we have to put the '<' in front of it.
* Don't do this when 'shellquote' is not empty, otherwise the
* redirection would be inside the quotes.
*/
if (*p_shq == NUL)
{
p = vim_strchr(buf, '|');
if (p != NULL)
*p = NUL;
}
# ifdef RISCOS
STRCAT(buf, " { < "); /* Use RISC OS notation for input. */
STRCAT(buf, itmp);
STRCAT(buf, " } ");
# else
STRCAT(buf, " <"); /* " < " causes problems on Amiga */
STRCAT(buf, itmp);
# endif
if (*p_shq == NUL)
{
p = vim_strchr(cmd, '|');
if (p != NULL)
{
STRCAT(buf, " "); /* insert a space before the '|' for DOS */
STRCAT(buf, p);
}
}
}
#endif
if (otmp != NULL)
append_redir(buf, p_srr, otmp);
return buf;
}
/*
* Append output redirection for file "fname" to the end of string buffer "buf"
* Works with the 'shellredir' and 'shellpipe' options.
* The caller should make sure that there is enough room:
* STRLEN(opt) + STRLEN(fname) + 3
*/
void
append_redir(buf, opt, fname)
char_u *buf;
char_u *opt;
char_u *fname;
{
char_u *p;
buf += STRLEN(buf);
/* find "%s", skipping "%%" */
for (p = opt; (p = vim_strchr(p, '%')) != NULL; ++p)
if (p[1] == 's')
break;
if (p != NULL)
{
*buf = ' '; /* not really needed? Not with sh, ksh or bash */
sprintf((char *)buf + 1, (char *)opt, (char *)fname);
}
else
sprintf((char *)buf,
#ifdef FEAT_QUICKFIX
# ifndef RISCOS
opt != p_sp ? " %s%s" :
# endif
" %s %s",
#else
# ifndef RISCOS
" %s%s", /* " > %s" causes problems on Amiga */
# else
" %s %s", /* But is needed for 'shellpipe' and RISC OS */
# endif
#endif
(char *)opt, (char *)fname);
}
#ifdef FEAT_VIMINFO
static int no_viminfo __ARGS((void));
static int viminfo_errcnt;
static int
no_viminfo()
{
/* "vim -i NONE" does not read or write a viminfo file */
return (use_viminfo != NULL && STRCMP(use_viminfo, "NONE") == 0);
}
/*
* Report an error for reading a viminfo file.
* Count the number of errors. When there are more than 10, return TRUE.
*/
int
viminfo_error(errnum, message, line)
char *errnum;
char *message;
char_u *line;
{
sprintf((char *)IObuff, _("%sviminfo: %s in line: "), errnum, message);
STRNCAT(IObuff, line, IOSIZE - STRLEN(IObuff));
emsg(IObuff);
if (++viminfo_errcnt >= 10)
{
EMSG(_("E136: viminfo: Too many errors, skipping rest of file"));
return TRUE;
}
return FALSE;
}
/*
* read_viminfo() -- Read the viminfo file. Registers etc. which are already
* set are not over-written unless force is TRUE. -- webb
*/
int
read_viminfo(file, want_info, want_marks, forceit)
char_u *file;
int want_info;
int want_marks;
int forceit;
{
FILE *fp;
char_u *fname;
if (no_viminfo())
return FAIL;
fname = viminfo_filename(file); /* may set to default if NULL */
if (fname == NULL)
return FAIL;
fp = mch_fopen((char *)fname, READBIN);
if (p_verbose > 0)
{
char_u *s;
s = fname;
if (STRLEN(fname) > IOSIZE - 100)
s = fname + STRLEN(fname) - (IOSIZE - 100);
smsg((char_u *)_("Reading viminfo file \"%s\"%s%s%s"), s,
want_info ? _(" info") : "",
want_marks ? _(" marks") : "",
fp == NULL ? _(" FAILED") : "");
}
vim_free(fname);
if (fp == NULL)
return FAIL;
viminfo_errcnt = 0;
do_viminfo(fp, NULL, want_info, want_marks, forceit);
fclose(fp);
return OK;
}
/*
* write_viminfo() -- Write the viminfo file. The old one is read in first so
* that effectively a merge of current info and old info is done. This allows
* multiple vims to run simultaneously, without losing any marks etc. If
* forceit is TRUE, then the old file is not read in, and only internal info is
* written to the file. -- webb
*/
void
write_viminfo(file, forceit)
char_u *file;
int forceit;
{
char_u *fname;
FILE *fp_in = NULL; /* input viminfo file, if any */
FILE *fp_out = NULL; /* output viminfo file */
char_u *tempname = NULL; /* name of temp viminfo file */
struct stat st_new; /* mch_stat() of potential new file */
char_u *wp;
#if defined(UNIX) || defined(VMS)
mode_t umask_save;
#endif
#ifdef UNIX
int shortname = FALSE; /* use 8.3 file name */
struct stat st_old; /* mch_stat() of existing viminfo file */
#endif
if (no_viminfo())
return;
fname = viminfo_filename(file); /* may set to default if NULL */
if (fname == NULL)
return;
fp_in = mch_fopen((char *)fname, READBIN);
if (fp_in == NULL)
{
/* if it does exist, but we can't read it, don't try writing */
if (mch_stat((char *)fname, &st_new) == 0)
goto end;
#if defined(UNIX) || defined(VMS)
/*
* For Unix we create the .viminfo non-accessible for others,
* because it may contain text from non-accessible documents.
*/
umask_save = umask(077);
#endif
fp_out = mch_fopen((char *)fname, WRITEBIN);
#if defined(UNIX) || defined(VMS)
(void)umask(umask_save);
#endif
}
else
{
/*
* There is an existing viminfo file. Create a temporary file to
* write the new viminfo into, in the same directory as the
* existing viminfo file, which will be renamed later.
*/
#ifdef UNIX
/*
* For Unix we check the owner of the file. It's not very nice to
* overwrite a user's viminfo file after a "su root", with a
* viminfo file that the user can't read.
*/
st_old.st_dev = st_old.st_ino = 0;
st_old.st_mode = 0600;
if (mch_stat((char *)fname, &st_old) == 0 && getuid() &&
!(st_old.st_uid == getuid()
? (st_old.st_mode & 0200)
: (st_old.st_gid == getgid()
? (st_old.st_mode & 0020)
: (st_old.st_mode & 0002))))
{
int tt;
/* avoid a wait_return for this message, it's annoying */
tt = msg_didany;
EMSG2(_("E137: Viminfo file is not writable: %s"), fname);
msg_didany = tt;
goto end;
}
#endif
/*
* Make tempname.
* May try twice: Once normal and once with shortname set, just in
* case somebody puts his viminfo file in an 8.3 filesystem.
*/
for (;;)
{
tempname = buf_modname(
#ifdef UNIX
shortname,
#else
# ifdef SHORT_FNAME
TRUE,
# else
# ifdef FEAT_GUI_W32
gui_is_win32s(),
# else
FALSE,
# endif
# endif
#endif
fname,
#ifdef VMS
(char_u *)"-tmp",
#else
# ifdef RISCOS
(char_u *)"/tmp",
# else
(char_u *)".tmp",
# endif
#endif
FALSE);
if (tempname == NULL) /* out of memory */
break;
/*
* Check if tempfile already exists. Never overwrite an
* existing file!
*/
if (mch_stat((char *)tempname, &st_new) == 0)
{
#ifdef UNIX
/*
* Check if tempfile is same as original file. May happen
* when modname() gave the same file back. E.g. silly
* link, or file name-length reached. Try again with
* shortname set.
*/
if (!shortname && st_new.st_dev == st_old.st_dev &&
st_new.st_ino == st_old.st_ino)
{
vim_free(tempname);
tempname = NULL;
shortname = TRUE;
continue;
}
#endif
/*
* Try another name. Change one character, just before
* the extension. This should also work for an 8.3
* file name, when after adding the extension it still is
* the same file as the original.
*/
wp = tempname + STRLEN(tempname) - 5;
if (wp < gettail(tempname)) /* empty file name? */
wp = gettail(tempname);
for (*wp = 'z'; mch_stat((char *)tempname, &st_new) == 0;
--*wp)
{
/*
* They all exist? Must be something wrong! Don't
* write the viminfo file then.
*/
if (*wp == 'a')
{
vim_free(tempname);
tempname = NULL;
break;
}
}
}
break;
}
if (tempname != NULL)
{
fp_out = mch_fopen((char *)tempname, WRITEBIN);
/*
* If we can't create in the same directory, try creating a
* "normal" temp file.
*/
if (fp_out == NULL)
{
vim_free(tempname);
if ((tempname = vim_tempname('o')) != NULL)
fp_out = mch_fopen((char *)tempname, WRITEBIN);
}
#ifdef UNIX
/*
* Set file protection same as original file, but strip s-bit
* and make sure the owner can read/write it.
*/
if (fp_out != NULL)
{
(void)mch_setperm(tempname,
(long)((st_old.st_mode & 0777) | 0600));
/* this only works for root: */
(void)chown((char *)tempname, st_old.st_uid, st_old.st_gid);
}
#endif
}
}
/*
* Check if the new viminfo file can be written to.
*/
if (fp_out == NULL)
{
EMSG2(_("E138: Can't write viminfo file %s!"),
(fp_in == NULL || tempname == NUL) ? fname : tempname);
if (fp_in != NULL)
fclose(fp_in);
goto end;
}
if (p_verbose > 0)
msg_str((char_u *)_("Writing viminfo file \"%s\""), fname);
viminfo_errcnt = 0;
do_viminfo(fp_in, fp_out, !forceit, !forceit, FALSE);
fclose(fp_out); /* errors are ignored !? */
if (fp_in != NULL)
{
fclose(fp_in);
/*
* In case of an error, don't overwrite the original viminfo file.
*/
if (viminfo_errcnt || vim_rename(tempname, fname) == -1)
mch_remove(tempname);
}
end:
vim_free(fname);
vim_free(tempname);
}
/*
* Get the viminfo file name to use.
* If "file" is given and not empty, use it (has already been expanded by
* cmdline functions).
* Otherwise use "-i file_name", value from 'viminfo' or the default, and
* expand environment variables.
* Returns an allocated string. NULL when out of memory.
*/
static char_u *
viminfo_filename(file)
char_u *file;
{
if (file == NULL || *file == NUL)
{
if (use_viminfo != NULL)
file = use_viminfo;
else if ((file = find_viminfo_parameter('n')) == NULL || *file == NUL)
{
#ifdef VIMINFO_FILE2
/* don't use $HOME when not defined (turned into "c:/"!). */
# ifdef VMS
if (mch_getenv((char_u *)"SYS$LOGIN") == NULL)
# else
if (mch_getenv((char_u *)"HOME") == NULL)
# endif
{
/* don't use $VIM when not available. */
expand_env((char_u *)"$VIM", NameBuff, MAXPATHL);
if (STRCMP("$VIM", NameBuff) != 0) /* $VIM was expanded */
file = (char_u *)VIMINFO_FILE2;
else
file = (char_u *)VIMINFO_FILE;
}
else
#endif
file = (char_u *)VIMINFO_FILE;
}
expand_env(file, NameBuff, MAXPATHL);
file = NameBuff;
}
return vim_strsave(file);
}
/*
* do_viminfo() -- Should only be called from read_viminfo() & write_viminfo().
*/
static void
do_viminfo(fp_in, fp_out, want_info, want_marks, force_read)
FILE *fp_in;
FILE *fp_out;
int want_info;
int want_marks;
int force_read;
{
int count = 0;
int eof = FALSE;
vir_T vir;
if ((vir.vir_line = alloc(LSIZE)) == NULL)
return;
vir.vir_fd = fp_in;
#ifdef FEAT_MBYTE
vir.vir_conv.vc_type = CONV_NONE;
#endif
if (fp_in != NULL)
{
if (want_info)
eof = read_viminfo_up_to_marks(&vir, force_read, fp_out != NULL);
else
/* Skip info, find start of marks */
while (!(eof = viminfo_readline(&vir))
&& vir.vir_line[0] != '>')
;
}
if (fp_out != NULL)
{
/* Write the info: */
fprintf(fp_out, _("# This viminfo file was generated by Vim %s.\n"),
VIM_VERSION_MEDIUM);
fprintf(fp_out, _("# You may edit it if you're careful!\n\n"));
#ifdef FEAT_MBYTE
fprintf(fp_out, _("# Value of 'encoding' when this file was written\n"));
fprintf(fp_out, "*encoding=%s\n\n", p_enc);
#endif
write_viminfo_search_pattern(fp_out);
write_viminfo_sub_string(fp_out);
#ifdef FEAT_CMDHIST
write_viminfo_history(fp_out);
#endif
write_viminfo_registers(fp_out);
#ifdef FEAT_EVAL
write_viminfo_varlist(fp_out);
#endif
write_viminfo_filemarks(fp_out);
write_viminfo_bufferlist(fp_out);
count = write_viminfo_marks(fp_out);
}
if (fp_in != NULL && want_marks)
copy_viminfo_marks(&vir, fp_out, count, eof);
vim_free(vir.vir_line);
#ifdef FEAT_MBYTE
if (vir.vir_conv.vc_type != CONV_NONE)
convert_setup(&vir.vir_conv, NULL, NULL);
#endif
}
/*
* read_viminfo_up_to_marks() -- Only called from do_viminfo(). Reads in the
* first part of the viminfo file which contains everything but the marks that
* are local to a file. Returns TRUE when end-of-file is reached. -- webb
*/
static int
read_viminfo_up_to_marks(virp, forceit, writing)
vir_T *virp;
int forceit;
int writing;
{
int eof;
buf_T *buf;
#ifdef FEAT_CMDHIST
prepare_viminfo_history(forceit ? 9999 : 0);
#endif
eof = viminfo_readline(virp);
while (!eof && virp->vir_line[0] != '>')
{
switch (virp->vir_line[0])
{
/* Characters reserved for future expansion, ignored now */
case '+': /* "+40 /path/dir file", for running vim without args */
case '|': /* to be defined */
case '^': /* to be defined */
case '<': /* long line - ignored */
/* A comment or empty line. */
case NUL:
case '\r':
case '\n':
case '#':
eof = viminfo_readline(virp);
break;
case '*': /* "*encoding=value" */
eof = viminfo_encoding(virp);
break;
case '!': /* global variable */
#ifdef FEAT_EVAL
eof = read_viminfo_varlist(virp, writing);
#else
eof = viminfo_readline(virp);
#endif
break;
case '%': /* entry for buffer list */
eof = read_viminfo_bufferlist(virp, writing);
break;
case '"':
eof = read_viminfo_register(virp, forceit);
break;
case '/': /* Search string */
case '&': /* Substitute search string */
case '~': /* Last search string, followed by '/' or '&' */
eof = read_viminfo_search_pattern(virp, forceit);
break;
case '$':
eof = read_viminfo_sub_string(virp, forceit);
break;
case ':':
case '?':
case '=':
case '@':
#ifdef FEAT_CMDHIST
eof = read_viminfo_history(virp);
#else
eof = viminfo_readline(virp);
#endif
break;
case '-':
case '\'':
eof = read_viminfo_filemark(virp, forceit);
break;
default:
if (viminfo_error("E575: ", _("Illegal starting char"),
virp->vir_line))
eof = TRUE;
else
eof = viminfo_readline(virp);
break;
}
}
#ifdef FEAT_CMDHIST
/* Finish reading history items. */
finish_viminfo_history();
#endif
/* Change file names to buffer numbers for fmarks. */
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
fmarks_check_names(buf);
return eof;
}
/*
* Compare the 'encoding' value in the viminfo file with the current value of
* 'encoding'. If different and the 'c' flag is in 'viminfo', setup for
* conversion of text with iconv() in viminfo_readstring().
*/
static int
viminfo_encoding(virp)
vir_T *virp;
{
#ifdef FEAT_MBYTE
char_u *p;
int i;
if (get_viminfo_parameter('c') != 0)
{
p = vim_strchr(virp->vir_line, '=');
if (p != NULL)
{
/* remove trailing newline */
++p;
for (i = 0; vim_isprintc(p[i]); ++i)
;
p[i] = NUL;
convert_setup(&virp->vir_conv, p, p_enc);
}
}
#endif
return viminfo_readline(virp);
}
/*
* Read a line from the viminfo file.
* Returns TRUE for end-of-file;
*/
int
viminfo_readline(virp)
vir_T *virp;
{
return vim_fgets(virp->vir_line, LSIZE, virp->vir_fd);
}
/*
* check string read from viminfo file
* remove '\n' at the end of the line
* - replace CTRL-V CTRL-V with CTRL-V
* - replace CTRL-V 'n' with '\n'
*
* Check for a long line as written by viminfo_writestring().
*
* Return the string in allocated memory (NULL when out of memory).
*/
/*ARGSUSED*/
char_u *
viminfo_readstring(virp, off, convert)
vir_T *virp;
int off; /* offset for virp->vir_line */
int convert; /* convert the string */
{
char_u *retval;
char_u *s, *d;
long len;
if (virp->vir_line[off] == Ctrl_V && vim_isdigit(virp->vir_line[off + 1]))
{
len = atol((char *)virp->vir_line + off + 1);
retval = lalloc(len, TRUE);
if (retval == NULL)
{
/* Line too long? File messed up? Skip next line. */
(void)vim_fgets(virp->vir_line, 10, virp->vir_fd);
return NULL;
}
(void)vim_fgets(retval, (int)len, virp->vir_fd);
s = retval + 1; /* Skip the leading '<' */
}
else
{
retval = vim_strsave(virp->vir_line + off);
if (retval == NULL)
return NULL;
s = retval;
}
/* Change CTRL-V CTRL-V to CTRL-V and CTRL-V n to \n in-place. */
d = retval;
while (*s != NUL && *s != '\n')
{
if (s[0] == Ctrl_V && s[1] != NUL)
{
if (s[1] == 'n')
*d++ = '\n';
else
*d++ = Ctrl_V;
s += 2;
}
else
*d++ = *s++;
}
*d = NUL;
#ifdef FEAT_MBYTE
if (convert && virp->vir_conv.vc_type != CONV_NONE && *retval != NUL)
{
d = string_convert(&virp->vir_conv, retval, NULL);
if (d != NULL)
{
vim_free(retval);
retval = d;
}
}
#endif
return retval;
}
/*
* write string to viminfo file
* - replace CTRL-V with CTRL-V CTRL-V
* - replace '\n' with CTRL-V 'n'
* - add a '\n' at the end
*
* For a long line:
* - write " CTRL-V <length> \n " in first line
* - write " < <string> \n " in second line
*/
void
viminfo_writestring(fd, p)
FILE *fd;
char_u *p;
{
int c;
char_u *s;
int len = 0;
for (s = p; *s != NUL; ++s)
{
if (*s == Ctrl_V || *s == '\n')
++len;
++len;
}
/* If the string will be too long, write its length and put it in the next
* line. Take into account that some room is needed for what comes before
* the string (e.g., variable name). Add something to the length for the
* '<', NL and trailing NUL. */
if (len > LSIZE / 2)
fprintf(fd, IF_EB("\026%d\n<", CTRL_V_STR "%d\n<"), len + 3);
while ((c = *p++) != NUL)
{
if (c == Ctrl_V || c == '\n')
{
putc(Ctrl_V, fd);
if (c == '\n')
c = 'n';
}
putc(c, fd);
}
putc('\n', fd);
}
#endif /* FEAT_VIMINFO */
/*
* Implementation of ":fixdel", also used by get_stty().
* <BS> resulting <Del>
* ^? ^H
* not ^? ^?
*/
/*ARGSUSED*/
void
do_fixdel(eap)
exarg_T *eap;
{
char_u *p;
p = find_termcode((char_u *)"kb");
add_termcode((char_u *)"kD", p != NULL
&& *p == DEL ? (char_u *)CTRL_H_STR : DEL_STR, FALSE);
}
void
print_line_no_prefix(lnum, use_number)
linenr_T lnum;
int use_number;
{
char_u numbuf[30];
if (curwin->w_p_nu || use_number)
{
sprintf((char *)numbuf, "%*ld ", number_width(curwin), (long)lnum);
msg_puts_attr(numbuf, hl_attr(HLF_N)); /* Highlight line nrs */
}
msg_prt_line(ml_get(lnum));
}
/*
* Print a text line. Also in silent mode ("ex -s").
*/
void
print_line(lnum, use_number)
linenr_T lnum;
int use_number;
{
int save_silent = silent_mode;
silent_mode = FALSE;
msg_start();
print_line_no_prefix(lnum, use_number);
if (save_silent)
{
msg_putchar('\n');
cursor_on(); /* msg_start() switches it off */
out_flush();
silent_mode = save_silent;
}
}
/*
* ":file[!] [fname]".
*/
void
ex_file(eap)
exarg_T *eap;
{
char_u *fname, *sfname, *xfname;
buf_T *buf;
/* ":0file" removes the file name. Check for illegal uses ":3file",
* "0file name", etc. */
if (eap->addr_count > 0
&& (*eap->arg != NUL
|| eap->line2 > 0
|| eap->addr_count > 1))
{
EMSG(_(e_invarg));
return;
}
if (*eap->arg != NUL || eap->addr_count == 1)
{
#ifdef FEAT_AUTOCMD
buf = curbuf;
apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf);
/* buffer changed, don't change name now */
if (buf != curbuf)
return;
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
return;
# endif
#endif
/*
* The name of the current buffer will be changed.
* A new (unlisted) buffer entry needs to be made to hold the old file
* name, which will become the alternate file name.
* But don't set the alternate file name if the buffer didn't have a
* name.
*/
fname = curbuf->b_ffname;
sfname = curbuf->b_sfname;
xfname = curbuf->b_fname;
curbuf->b_ffname = NULL;
curbuf->b_sfname = NULL;
if (setfname(curbuf, eap->arg, NULL, TRUE) == FAIL)
{
curbuf->b_ffname = fname;
curbuf->b_sfname = sfname;
return;
}
curbuf->b_flags |= BF_NOTEDITED;
if (xfname != NULL && *xfname != NUL)
{
buf = buflist_new(fname, xfname, curwin->w_cursor.lnum, 0);
if (buf != NULL && !cmdmod.keepalt)
curwin->w_alt_fnum = buf->b_fnum;
}
vim_free(fname);
vim_free(sfname);
#ifdef FEAT_AUTOCMD
apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf);
#endif
}
/* print full file name if :cd used */
fileinfo(FALSE, FALSE, eap->forceit);
}
/*
* ":update".
*/
void
ex_update(eap)
exarg_T *eap;
{
if (curbufIsChanged())
(void)do_write(eap);
}
/*
* ":write" and ":saveas".
*/
void
ex_write(eap)
exarg_T *eap;
{
if (eap->usefilter) /* input lines to shell command */
do_bang(1, eap, FALSE, TRUE, FALSE);
else
(void)do_write(eap);
}
/*
* write current buffer to file 'eap->arg'
* if 'eap->append' is TRUE, append to the file
*
* if *eap->arg == NUL write to current file
*
* return FAIL for failure, OK otherwise
*/
int
do_write(eap)
exarg_T *eap;
{
int other;
char_u *fname = NULL; /* init to shut up gcc */
char_u *ffname;
int retval = FAIL;
char_u *free_fname = NULL;
#ifdef FEAT_BROWSE
char_u *browse_file = NULL;
#endif
buf_T *alt_buf = NULL;
if (not_writing()) /* check 'write' option */
return FAIL;
ffname = eap->arg;
#ifdef FEAT_BROWSE
if (cmdmod.browse)
{
browse_file = do_browse(BROWSE_SAVE, (char_u *)_("Save As"), ffname,
NULL, NULL, NULL, curbuf);
if (browse_file == NULL)
goto theend;
ffname = browse_file;
}
#endif
if (*ffname == NUL)
{
if (eap->cmdidx == CMD_saveas)
{
EMSG(_(e_argreq));
goto theend;
}
other = FALSE;
}
else
{
fname = ffname;
free_fname = fix_fname(ffname);
/*
* When out-of-memory, keep unexpanded file name, because we MUST be
* able to write the file in this situation.
*/
if (free_fname != NULL)
ffname = free_fname;
other = otherfile(ffname);
}
/*
* If we have a new file, put its name in the list of alternate file names.
*/
if (other)
{
if (vim_strchr(p_cpo, CPO_ALTWRITE) != NULL
|| eap->cmdidx == CMD_saveas)
alt_buf = setaltfname(ffname, fname, (linenr_T)1);
else
alt_buf = buflist_findname(ffname);
if (alt_buf != NULL && alt_buf->b_ml.ml_mfp != NULL)
{
/* Overwriting a file that is loaded in another buffer is not a
* good idea. */
EMSG(_("E139: File is loaded in another buffer"));
goto theend;
}
}
/*
* Writing to the current file is not allowed in readonly mode
* and a file name is required.
* "nofile" and "nowrite" buffers cannot be written implicitly either.
*/
if (!other && (
#ifdef FEAT_QUICKFIX
bt_dontwrite_msg(curbuf) ||
#endif
check_fname() == FAIL || check_readonly(&eap->forceit, curbuf)))
goto theend;
if (!other)
{
ffname = curbuf->b_ffname;
fname = curbuf->b_fname;
/*
* Not writing the whole file is only allowed with '!'.
*/
if ( (eap->line1 != 1
|| eap->line2 != curbuf->b_ml.ml_line_count)
&& !eap->forceit
&& !eap->append
&& !p_wa)
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if (p_confirm || cmdmod.confirm)
{
if (vim_dialog_yesno(VIM_QUESTION, NULL,
(char_u *)_("Write partial file?"), 2) != VIM_YES)
goto theend;
eap->forceit = TRUE;
}
else
#endif
{
EMSG(_("E140: Use ! to write partial buffer"));
goto theend;
}
}
}
if (check_overwrite(eap, curbuf, fname, ffname, other) == OK)
{
if (eap->cmdidx == CMD_saveas && alt_buf != NULL)
{
#ifdef FEAT_AUTOCMD
buf_T *was_curbuf = curbuf;
apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf);
apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, alt_buf);
# ifdef FEAT_EVAL
if (curbuf != was_curbuf || aborting())
# else
if (curbuf != was_curbuf)
# endif
{
/* buffer changed, don't change name now */
retval = FAIL;
goto theend;
}
#endif
/* Exchange the file names for the current and the alternate
* buffer. This makes it look like we are now editing the buffer
* under the new name. Must be done before buf_write(), because
* if there is no file name and 'cpo' contains 'F', it will set
* the file name. */
fname = alt_buf->b_fname;
alt_buf->b_fname = curbuf->b_fname;
curbuf->b_fname = fname;
fname = alt_buf->b_ffname;
alt_buf->b_ffname = curbuf->b_ffname;
curbuf->b_ffname = fname;
fname = alt_buf->b_sfname;
alt_buf->b_sfname = curbuf->b_sfname;
curbuf->b_sfname = fname;
buf_name_changed(curbuf);
#ifdef FEAT_AUTOCMD
apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf);
apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, alt_buf);
if (!alt_buf->b_p_bl)
{
alt_buf->b_p_bl = TRUE;
apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, alt_buf);
}
# ifdef FEAT_EVAL
if (curbuf != was_curbuf || aborting())
# else
if (curbuf != was_curbuf)
# endif
{
/* buffer changed, don't write the file */
retval = FAIL;
goto theend;
}
#endif
}
retval = buf_write(curbuf, ffname, fname, eap->line1, eap->line2,
eap, eap->append, eap->forceit, TRUE, FALSE);
}
theend:
#ifdef FEAT_BROWSE
vim_free(browse_file);
#endif
vim_free(free_fname);
return retval;
}
/*
* Check if it is allowed to overwrite a file. If b_flags has BF_NOTEDITED,
* BF_NEW or BF_READERR, check for overwriting current file.
* May set eap->forceit if a dialog says it's OK to overwrite.
* Return OK if it's OK, FAIL if it is not.
*/
/*ARGSUSED*/
static int
check_overwrite(eap, buf, fname, ffname, other)
exarg_T *eap;
buf_T *buf;
char_u *fname; /* file name to be used (can differ from
buf->ffname) */
char_u *ffname; /* full path version of fname */
int other; /* writing under other name */
{
/*
* write to other file or b_flags set or not writing the whole file:
* overwriting only allowed with '!'
*/
if ( (other
|| (buf->b_flags & BF_NOTEDITED)
|| ((buf->b_flags & BF_NEW)
&& vim_strchr(p_cpo, CPO_OVERNEW) == NULL)
|| (buf->b_flags & BF_READERR))
&& !eap->forceit
&& !eap->append
&& !p_wa
&& vim_fexists(ffname))
{
#ifdef UNIX
/* with UNIX it is possible to open a directory */
if (mch_isdir(ffname))
{
EMSG2(_(e_isadir2), ffname);
return FAIL;
}
#endif
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if (p_confirm || cmdmod.confirm)
{
char_u buff[IOSIZE];
dialog_msg(buff, _("Overwrite existing file \"%.*s\"?"), fname);
if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) != VIM_YES)
return FAIL;
eap->forceit = TRUE;
}
else
#endif
{
EMSG(_(e_exists));
return FAIL;
}
}
return OK;
}
/*
* Handle ":wnext", ":wNext" and ":wprevious" commands.
*/
void
ex_wnext(eap)
exarg_T *eap;
{
int i;
if (eap->cmd[1] == 'n')
i = curwin->w_arg_idx + (int)eap->line2;
else
i = curwin->w_arg_idx - (int)eap->line2;
eap->line1 = 1;
eap->line2 = curbuf->b_ml.ml_line_count;
if (do_write(eap) != FAIL)
do_argfile(eap, i);
}
/*
* ":wall", ":wqall" and ":xall": Write all changed files (and exit).
*/
void
do_wqall(eap)
exarg_T *eap;
{
buf_T *buf;
int error = 0;
int save_forceit = eap->forceit;
if (eap->cmdidx == CMD_xall || eap->cmdidx == CMD_wqall)
exiting = TRUE;
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
{
if (bufIsChanged(buf))
{
/*
* Check if there is a reason the buffer cannot be written:
* 1. if the 'write' option is set
* 2. if there is no file name (even after browsing)
* 3. if the 'readonly' is set (even after a dialog)
* 4. if overwriting is allowed (even after a dialog)
*/
if (not_writing())
{
++error;
break;
}
#ifdef FEAT_BROWSE
/* ":browse wall": ask for file name if there isn't one */
if (buf->b_ffname == NULL && cmdmod.browse)
browse_save_fname(buf);
#endif
if (buf->b_ffname == NULL)
{
EMSGN(_("E141: No file name for buffer %ld"), (long)buf->b_fnum);
++error;
}
else if (check_readonly(&eap->forceit, buf)
|| check_overwrite(eap, buf, buf->b_fname, buf->b_ffname,
FALSE) == FAIL)
{
++error;
}
else
{
if (buf_write_all(buf, eap->forceit) == FAIL)
++error;
#ifdef FEAT_AUTOCMD
/* an autocommand may have deleted the buffer */
if (!buf_valid(buf))
buf = firstbuf;
#endif
}
eap->forceit = save_forceit; /* check_overwrite() may set it */
}
}
if (exiting)
{
if (!error)
getout(0); /* exit Vim */
not_exiting();
}
}
/*
* Check the 'write' option.
* Return TRUE and give a message when it's not st.
*/
int
not_writing()
{
if (p_write)
return FALSE;
EMSG(_("E142: File not written: Writing is disabled by 'write' option"));
return TRUE;
}
/*
* Check if a buffer is read-only. Ask for overruling in a dialog.
* Return TRUE and give an error message when the buffer is readonly.
*/
static int
check_readonly(forceit, buf)
int *forceit;
buf_T *buf;
{
if (!*forceit && buf->b_p_ro)
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if ((p_confirm || cmdmod.confirm) && buf->b_fname != NULL)
{
char_u buff[IOSIZE];
dialog_msg(buff, _("'readonly' option is set for \"%.*s\".\nDo you wish to write anyway?"),
buf->b_fname);
if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) == VIM_YES)
{
/* Set forceit, to force the writing of a readonly file */
*forceit = TRUE;
return FALSE;
}
else
return TRUE;
}
else
#endif
EMSG(_(e_readonly));
return TRUE;
}
return FALSE;
}
/*
* try to abandon current file and edit a new or existing file
* 'fnum' is the number of the file, if zero use ffname/sfname
*
* return 1 for "normal" error, 2 for "not written" error, 0 for success
* -1 for succesfully opening another file
* 'lnum' is the line number for the cursor in the new file (if non-zero).
*/
int
getfile(fnum, ffname, sfname, setpm, lnum, forceit)
int fnum;
char_u *ffname;
char_u *sfname;
int setpm;
linenr_T lnum;
int forceit;
{
int other;
int retval;
char_u *free_me = NULL;
#ifdef FEAT_CMDWIN
if (cmdwin_type != 0)
return 1;
#endif
if (fnum == 0)
{
/* make ffname full path, set sfname */
fname_expand(curbuf, &ffname, &sfname);
other = otherfile(ffname);
free_me = ffname; /* has been allocated, free() later */
}
else
other = (fnum != curbuf->b_fnum);
if (other)
++no_wait_return; /* don't wait for autowrite message */
if (other && !forceit && curbuf->b_nwindows == 1 && !P_HID(curbuf)
&& curbufIsChanged() && autowrite(curbuf, forceit) == FAIL)
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if (p_confirm && p_write)
dialog_changed(curbuf, FALSE);
if (curbufIsChanged())
#endif
{
if (other)
--no_wait_return;
EMSG(_(e_nowrtmsg));
retval = 2; /* file has been changed */
goto theend;
}
}
if (other)
--no_wait_return;
if (setpm)
setpcmark();
if (!other)
{
if (lnum != 0)
curwin->w_cursor.lnum = lnum;
check_cursor_lnum();
beginline(BL_SOL | BL_FIX);
retval = 0; /* it's in the same file */
}
else if (do_ecmd(fnum, ffname, sfname, NULL, lnum,
(P_HID(curbuf) ? ECMD_HIDE : 0) + (forceit ? ECMD_FORCEIT : 0)) == OK)
retval = -1; /* opened another file */
else
retval = 1; /* error encountered */
theend:
vim_free(free_me);
return retval;
}
/*
* start editing a new file
*
* fnum: file number; if zero use ffname/sfname
* ffname: the file name
* - full path if sfname used,
* - any file name if sfname is NULL
* - empty string to re-edit with the same file name (but may be
* in a different directory)
* - NULL to start an empty buffer
* sfname: the short file name (or NULL)
* eap: contains the command to be executed after loading the file and
* forced 'ff' and 'fenc'
* newlnum: if > 0: put cursor on this line number (if possible)
* if ECMD_LASTL: use last position in loaded file
* if ECMD_LAST: use last position in all files
* if ECMD_ONE: use first line
* flags:
* ECMD_HIDE: if TRUE don't free the current buffer
* ECMD_SET_HELP: set b_help flag of (new) buffer before opening file
* ECMD_OLDBUF: use existing buffer if it exists
* ECMD_FORCEIT: ! used for Ex command
* ECMD_ADDBUF: don't edit, just add to buffer list
*
* return FAIL for failure, OK otherwise
*/
int
do_ecmd(fnum, ffname, sfname, eap, newlnum, flags)
int fnum;
char_u *ffname;
char_u *sfname;
exarg_T *eap; /* can be NULL! */
linenr_T newlnum;
int flags;
{
int other_file; /* TRUE if editing another file */
int oldbuf; /* TRUE if using existing buffer */
#ifdef FEAT_AUTOCMD
int auto_buf = FALSE; /* TRUE if autocommands brought us
into the buffer unexpectedly */
char_u *new_name = NULL;
#endif
buf_T *buf;
#if defined(FEAT_AUTOCMD) || defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
buf_T *old_curbuf = curbuf;
#endif
char_u *free_fname = NULL;
#ifdef FEAT_BROWSE
char_u *browse_file = NULL;
#endif
int retval = FAIL;
long n;
linenr_T lnum;
linenr_T topline = 0;
int newcol = -1;
int solcol = -1;
pos_T *pos;
#ifdef FEAT_SUN_WORKSHOP
char_u *cp;
#endif
char_u *command = NULL;
if (eap != NULL)
command = eap->do_ecmd_cmd;
if (fnum != 0)
{
if (fnum == curbuf->b_fnum) /* file is already being edited */
return OK; /* nothing to do */
other_file = TRUE;
}
else
{
#ifdef FEAT_BROWSE
if (cmdmod.browse)
{
browse_file = do_browse(0, (char_u *)_("Edit File"), ffname,
NULL, NULL, NULL, curbuf);
if (browse_file == NULL)
goto theend;
ffname = browse_file;
}
#endif
/* if no short name given, use ffname for short name */
if (sfname == NULL)
sfname = ffname;
#ifdef USE_FNAME_CASE
# ifdef USE_LONG_FNAME
if (USE_LONG_FNAME)
# endif
fname_case(sfname, 0); /* set correct case for short file name */
#endif
#ifdef FEAT_LISTCMDS
if ((flags & ECMD_ADDBUF) && (ffname == NULL || *ffname == NUL))
goto theend;
#endif
if (ffname == NULL)
other_file = TRUE;
/* there is no file name */
else if (*ffname == NUL && curbuf->b_ffname == NULL)
other_file = FALSE;
else
{
if (*ffname == NUL) /* re-edit with same file name */
{
ffname = curbuf->b_ffname;
sfname = curbuf->b_fname;
}
free_fname = fix_fname(ffname); /* may expand to full path name */
if (free_fname != NULL)
ffname = free_fname;
other_file = otherfile(ffname);
#ifdef FEAT_SUN_WORKSHOP
if (usingSunWorkShop && p_acd
&& (cp = vim_strrchr(sfname, '/')) != NULL)
sfname = ++cp;
#endif
}
}
/*
* if the file was changed we may not be allowed to abandon it
* - if we are going to re-edit the same file
* - or if we are the only window on this file and if ECMD_HIDE is FALSE
*/
if ( ((!other_file && !(flags & ECMD_OLDBUF))
|| (curbuf->b_nwindows == 1
&& !(flags & (ECMD_HIDE | ECMD_ADDBUF))))
&& check_changed(curbuf, p_awa, !other_file,
(flags & ECMD_FORCEIT), FALSE))
{
if (fnum == 0 && other_file && ffname != NULL)
(void)setaltfname(ffname, sfname, newlnum < 0 ? 0 : newlnum);
goto theend;
}
#ifdef FEAT_VISUAL
/*
* End Visual mode before switching to another buffer, so the text can be
* copied into the GUI selection buffer.
*/
reset_VIsual();
#endif
/*
* If we are starting to edit another file, open a (new) buffer.
* Otherwise we re-use the current buffer.
*/
if (other_file)
{
#ifdef FEAT_LISTCMDS
if (!(flags & ECMD_ADDBUF))
#endif
{
if (!cmdmod.keepalt)
curwin->w_alt_fnum = curbuf->b_fnum;
buflist_altfpos();
}
if (fnum)
buf = buflist_findnr(fnum);
else
{
#ifdef FEAT_LISTCMDS
if (flags & ECMD_ADDBUF)
{
linenr_T tlnum = 1L;
if (command != NULL)
{
tlnum = atol((char *)command);
if (tlnum <= 0)
tlnum = 1L;
}
(void)buflist_new(ffname, sfname, tlnum, BLN_LISTED);
goto theend;
}
#endif
buf = buflist_new(ffname, sfname, 0L,
BLN_CURBUF | ((flags & ECMD_SET_HELP) ? 0 : BLN_LISTED));
}
if (buf == NULL)
goto theend;
if (buf->b_ml.ml_mfp == NULL) /* no memfile yet */
{
oldbuf = FALSE;
buf->b_nwindows = 0;
}
else /* existing memfile */
{
oldbuf = TRUE;
(void)buf_check_timestamp(buf, FALSE);
/* Check if autocommands made buffer invalid or changed the current
* buffer. */
if (!buf_valid(buf)
#ifdef FEAT_AUTOCMD
|| curbuf != old_curbuf
#endif
)
goto theend;
#ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
goto theend;
#endif
}
/* May jump to last used line number for a loaded buffer or when asked
* for explicitly */
if ((oldbuf && newlnum == ECMD_LASTL) || newlnum == ECMD_LAST)
{
pos = buflist_findfpos(buf);
newlnum = pos->lnum;
solcol = pos->col;
}
/*
* Make the (new) buffer the one used by the current window.
* If the old buffer becomes unused, free it if ECMD_HIDE is FALSE.
* If the current buffer was empty and has no file name, curbuf
* is returned by buflist_new().
*/
if (buf != curbuf)
{
#ifdef FEAT_AUTOCMD
/*
* Be careful: The autocommands may delete any buffer and change
* the current buffer.
* - If the buffer we are going to edit is deleted, give up.
* - If the current buffer is deleted, prefer to load the new
* buffer when loading a buffer is required. This avoids
* loading another buffer which then must be closed again.
* - If we ended up in the new buffer already, need to skip a few
* things, set auto_buf.
*/
if (buf->b_fname != NULL)
new_name = vim_strsave(buf->b_fname);
au_new_curbuf = buf;
apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf);
if (!buf_valid(buf)) /* new buffer has been deleted */
{
delbuf_msg(new_name); /* frees new_name */
goto theend;
}
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
{
vim_free(new_name);
goto theend;
}
# endif
if (buf == curbuf) /* already in new buffer */
auto_buf = TRUE;
else
{
if (curbuf == old_curbuf)
#endif
buf_copy_options(buf, BCO_ENTER);
/* close the link to the current buffer */
close_buffer(curwin, curbuf,
(flags & ECMD_HIDE) ? 0 : DOBUF_UNLOAD);
#ifdef FEAT_AUTOCMD
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
{
vim_free(new_name);
goto theend;
}
# endif
/* Be careful again, like above. */
if (!buf_valid(buf)) /* new buffer has been deleted */
{
delbuf_msg(new_name); /* frees new_name */
goto theend;
}
if (buf == curbuf) /* already in new buffer */
auto_buf = TRUE;
else
#endif
{
curwin->w_buffer = buf;
curbuf = buf;
++curbuf->b_nwindows;
/* set 'fileformat' */
if (*p_ffs && !oldbuf)
set_fileformat(default_fileformat(), OPT_LOCAL);
}
/* May get the window options from the last time this buffer
* was in this window (or another window). If not used
* before, reset the local window options to the global
* values. Also restores old folding stuff. */
get_winopts(buf);
#ifdef FEAT_AUTOCMD
}
vim_free(new_name);
au_new_curbuf = NULL;
#endif
}
else
++curbuf->b_nwindows;
curwin->w_pcmark.lnum = 1;
curwin->w_pcmark.col = 0;
}
else /* !other_file */
{
if (
#ifdef FEAT_LISTCMDS
(flags & ECMD_ADDBUF) ||
#endif
check_fname() == FAIL)
goto theend;
oldbuf = (flags & ECMD_OLDBUF);
}
if ((flags & ECMD_SET_HELP) || keep_help_flag)
{
char_u *p;
curbuf->b_help = TRUE;
#ifdef FEAT_QUICKFIX
set_string_option_direct((char_u *)"buftype", -1,
(char_u *)"help", OPT_FREE|OPT_LOCAL);
#endif
/*
* Always set these options after jumping to a help tag, because the
* user may have an autocommand that gets in the way.
* Accept all ASCII chars for keywords, except ' ', '*', '"', '|', and
* latin1 word characters (for translated help files).
* Only set it when needed, buf_init_chartab() is some work.
*/
p =
#ifdef EBCDIC
(char_u *)"65-255,^*,^|,^\"";
#else
(char_u *)"!-~,^*,^|,^\",192-255";
#endif
if (STRCMP(curbuf->b_p_isk, p) != 0)
{
set_string_option_direct((char_u *)"isk", -1, p,
OPT_FREE|OPT_LOCAL);
check_buf_options(curbuf);
(void)buf_init_chartab(curbuf, FALSE);
}
curbuf->b_p_ts = 8; /* 'tabstop' is 8 */
curwin->w_p_list = FALSE; /* no list mode */
curbuf->b_p_ma = FALSE; /* not modifiable */
curbuf->b_p_bin = FALSE; /* reset 'bin' before reading file */
curwin->w_p_nu = 0; /* no line numbers */
#ifdef FEAT_SCROLLBIND
curwin->w_p_scb = FALSE; /* no scroll binding */
#endif
#ifdef FEAT_ARABIC
curwin->w_p_arab = FALSE; /* no arabic mode */
#endif
#ifdef FEAT_RIGHTLEFT
curwin->w_p_rl = FALSE; /* help window is left-to-right */
#endif
#ifdef FEAT_FOLDING
curwin->w_p_fen = FALSE; /* No folding in the help window */
#endif
#ifdef FEAT_DIFF
curwin->w_p_diff = FALSE; /* No 'diff' */
#endif
#ifdef FEAT_AUTOCMD
buf = curbuf;
#endif
set_buflisted(FALSE);
}
else
{
#ifdef FEAT_AUTOCMD
buf = curbuf;
#endif
/* Don't make a buffer listed if it's a help buffer. Useful when
* using CTRL-O to go back to a help file. */
if (!curbuf->b_help)
set_buflisted(TRUE);
}
#ifdef FEAT_AUTOCMD
/* If autocommands change buffers under our fingers, forget about
* editing the file. */
if (buf != curbuf)
goto theend;
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
goto theend;
# endif
/* Since we are starting to edit a file, consider the filetype to be
* unset. Helps for when an autocommand changes files and expects syntax
* highlighting to work in the other file. */
did_filetype = FALSE;
#endif
/*
* other_file oldbuf
* FALSE FALSE re-edit same file, buffer is re-used
* FALSE TRUE re-edit same file, nothing changes
* TRUE FALSE start editing new file, new buffer
* TRUE TRUE start editing in existing buffer (nothing to do)
*/
if (!other_file && !oldbuf) /* re-use the buffer */
{
set_last_cursor(curwin); /* may set b_last_cursor */
if (newlnum == ECMD_LAST || newlnum == ECMD_LASTL)
{
newlnum = curwin->w_cursor.lnum;
solcol = curwin->w_cursor.col;
}
#ifdef FEAT_AUTOCMD
buf = curbuf;
if (buf->b_fname != NULL)
new_name = vim_strsave(buf->b_fname);
else
new_name = NULL;
#endif
buf_freeall(curbuf, FALSE, FALSE); /* free all things for buffer */
#ifdef FEAT_AUTOCMD
/* If autocommands deleted the buffer we were going to re-edit, give
* up and jump to the end. */
if (!buf_valid(buf))
{
delbuf_msg(new_name); /* frees new_name */
goto theend;
}
vim_free(new_name);
/* If autocommands change buffers under our fingers, forget about
* re-editing the file. Should do the buf_clear_file(), but perhaps
* the autocommands changed the buffer... */
if (buf != curbuf)
goto theend;
# ifdef FEAT_EVAL
if (aborting()) /* autocmds may abort script processing */
goto theend;
# endif
#endif
buf_clear_file(curbuf);
curbuf->b_op_start.lnum = 0; /* clear '[ and '] marks */
curbuf->b_op_end.lnum = 0;
}
/*
* If we get here we are sure to start editing
*/
/* don't redraw until the cursor is in the right line */
++RedrawingDisabled;
/* Assume success now */
retval = OK;
/*
* Reset cursor position, could be used by autocommands.
*/
check_cursor();
/*
* Check if we are editing the w_arg_idx file in the argument list.
*/
check_arg_idx(curwin);
#ifdef FEAT_AUTOCMD
if (!auto_buf)
#endif
{
/*
* Set cursor and init window before reading the file and executing
* autocommands. This allows for the autocommands to position the
* cursor.
*/
win_init(curwin);
#ifdef FEAT_FOLDING
/* It's like all lines in the buffer changed. Need to update
* automatic folding. */
foldUpdateAll(curwin);
#endif
#if defined(FEAT_SUN_WORKSHOP) || defined(FEAT_NETBEANS_INTG)
if (p_acd && curbuf->b_ffname != NULL
&& vim_chdirfile(curbuf->b_ffname) == OK)
shorten_fnames(TRUE);
#endif
/*
* Careful: open_buffer() and apply_autocmds() may change the current
* buffer and window.
*/
lnum = curwin->w_cursor.lnum;
topline = curwin->w_topline;
if (!oldbuf) /* need to read the file */
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
swap_exists_action = SEA_DIALOG;
#endif
curbuf->b_flags |= BF_CHECK_RO; /* set/reset 'ro' flag */
/*
* Open the buffer and read the file.
*/
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
if (should_abort(open_buffer(FALSE, eap)))
retval = FAIL;
#else
(void)open_buffer(FALSE, eap);
#endif
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if (swap_exists_action == SEA_QUIT)
retval = FAIL;
handle_swap_exists(old_curbuf);
#endif
}
#ifdef FEAT_AUTOCMD
else
{
/* Read the modelines, but only to set window-local options. Any
* buffer-local options have already been set and may have been
* changed by the user. */
do_modelines(TRUE);
apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf,
&retval);
apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf,
&retval);
}
check_arg_idx(curwin);
#endif
/*
* If autocommands change the cursor position or topline, we should
* keep it.
*/
if (curwin->w_cursor.lnum != lnum)
{
newlnum = curwin->w_cursor.lnum;
newcol = curwin->w_cursor.col;
}
if (curwin->w_topline == topline)
topline = 0;
/* Even when cursor didn't move we need to recompute topline. */
changed_line_abv_curs();
#ifdef FEAT_TITLE
maketitle();
#endif
}
#ifdef FEAT_DIFF
/* Tell the diff stuff that this buffer is new and/or needs updating.
* Also needed when re-editing the same buffer, because unloading will
* have removed it as a diff buffer. */
diff_new_buffer();
diff_invalidate();
#endif
if (command == NULL)
{
if (newcol >= 0) /* position set by autocommands */
{
curwin->w_cursor.lnum = newlnum;
curwin->w_cursor.col = newcol;
check_cursor();
}
else if (newlnum > 0) /* line number from caller or old position */
{
curwin->w_cursor.lnum = newlnum;
check_cursor_lnum();
if (solcol >= 0 && !p_sol)
{
/* 'sol' is off: Use last known column. */
curwin->w_cursor.col = solcol;
check_cursor_col();
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = 0;
#endif
curwin->w_set_curswant = TRUE;
}
else
beginline(BL_SOL | BL_FIX);
}
else /* no line number, go to last line in Ex mode */
{
if (exmode_active)
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
beginline(BL_WHITE | BL_FIX);
}
}
#ifdef FEAT_WINDOWS
/* Check if cursors in other windows on the same buffer are still valid */
check_lnums(FALSE);
#endif
/*
* Did not read the file, need to show some info about the file.
* Do this after setting the cursor.
*/
if (oldbuf
#ifdef FEAT_AUTOCMD
&& !auto_buf
#endif
)
{
int msg_scroll_save = msg_scroll;
/* Obey the 'O' flag in 'cpoptions': overwrite any previous file
* message. */
if (shortmess(SHM_OVERALL) && !exiting && p_verbose == 0)
msg_scroll = FALSE;
if (!msg_scroll) /* wait a bit when overwriting an error msg */
check_for_delay(FALSE);
msg_start();
msg_scroll = msg_scroll_save;
msg_scrolled_ign = TRUE;
fileinfo(FALSE, TRUE, FALSE);
msg_scrolled_ign = FALSE;
}
if (command != NULL)
do_cmdline(command, NULL, NULL, DOCMD_VERBOSE);
#ifdef FEAT_KEYMAP
if (curbuf->b_kmap_state & KEYMAP_INIT)
keymap_init();
#endif
--RedrawingDisabled;
if (!skip_redraw)
{
n = p_so;
if (topline == 0 && command == NULL)
p_so = 999; /* force cursor halfway the window */
update_topline();
#ifdef FEAT_SCROLLBIND
curwin->w_scbind_pos = curwin->w_topline;
#endif
p_so = n;
redraw_curbuf_later(NOT_VALID); /* redraw this buffer later */
}
if (p_im)
need_start_insertmode = TRUE;
#if defined(FEAT_SUN_WORKSHOP) || defined(FEAT_NETBEANS_INTG)
/* Change directories when the acd option is set on. */
if (p_acd && curbuf->b_ffname != NULL
&& vim_chdirfile(curbuf->b_ffname) == OK)
shorten_fnames(TRUE);
if (gui.in_use && curbuf->b_ffname != NULL)
{
# ifdef FEAT_SUN_WORKSHOP
if (usingSunWorkShop)
workshop_file_opened((char *)curbuf->b_ffname, curbuf->b_p_ro);
# endif
# ifdef FEAT_NETBEANS_INTG
if (usingNetbeans & ((flags & ECMD_SET_HELP) != ECMD_SET_HELP))
netbeans_file_opened(curbuf);
# endif
}
#endif
theend:
#ifdef FEAT_BROWSE
vim_free(browse_file);
#endif
vim_free(free_fname);
return retval;
}
#ifdef FEAT_AUTOCMD
static void
delbuf_msg(name)
char_u *name;
{
EMSG2(_("E143: Autocommands unexpectedly deleted new buffer %s"),
name == NULL ? (char_u *)"" : name);
vim_free(name);
au_new_curbuf = NULL;
}
#endif
/*
* ":insert" and ":append", also used by ":change"
*/
void
ex_append(eap)
exarg_T *eap;
{
char_u *theline;
int did_undo = FALSE;
linenr_T lnum = eap->line2;
if (eap->cmdidx != CMD_append)
--lnum;
State = INSERT; /* behave like in Insert mode */
if (curbuf->b_p_iminsert == B_IMODE_LMAP)
State |= LANGMAP;
while (1)
{
msg_scroll = TRUE;
need_wait_return = FALSE;
if (eap->getline == NULL)
theline = getcmdline(
#ifdef FEAT_EVAL
eap->cstack->cs_whilelevel > 0 ? -1 :
#endif
NUL, 0L, 0);
else
theline = eap->getline(
#ifdef FEAT_EVAL
eap->cstack->cs_whilelevel > 0 ? -1 :
#endif
NUL, eap->cookie, 0);
lines_left = Rows - 1;
if (theline == NULL || (theline[0] == '.' && theline[1] == NUL)
|| (!did_undo && u_save(lnum, lnum + 1) == FAIL))
{
vim_free(theline);
break;
}
did_undo = TRUE;
ml_append(lnum, theline, (colnr_T)0, FALSE);
appended_lines_mark(lnum, 1L);
vim_free(theline);
++lnum;
msg_didout = TRUE; /* also scroll for empty line */
}
State = NORMAL;
/* "start" is set to eap->line2+1 unless that position is invalid (when
* eap->line2 pointed to the end of the buffer and nothig was appended)
* "end" is set to lnum when something has been appended, otherwise
* it is the same than "start" -- Acevedo */
curbuf->b_op_start.lnum = (eap->line2 < curbuf->b_ml.ml_line_count) ?
eap->line2 + 1 : curbuf->b_ml.ml_line_count;
if (eap->cmdidx != CMD_append)
--curbuf->b_op_start.lnum;
curbuf->b_op_end.lnum = (eap->line2 < lnum)
? lnum : curbuf->b_op_start.lnum;
curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
curwin->w_cursor.lnum = lnum;
check_cursor_lnum();
beginline(BL_SOL | BL_FIX);
need_wait_return = FALSE; /* don't use wait_return() now */
ex_no_reprint = TRUE;
}
/*
* ":change"
*/
void
ex_change(eap)
exarg_T *eap;
{
linenr_T lnum;
if (eap->line2 >= eap->line1
&& u_save(eap->line1 - 1, eap->line2 + 1) == FAIL)
return;
for (lnum = eap->line2; lnum >= eap->line1; --lnum)
{
if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to delete */
break;
ml_delete(eap->line1, FALSE);
}
deleted_lines_mark(eap->line1, (long)(eap->line2 - lnum));
/* ":append" on the line above the deleted lines. */
eap->line2 = eap->line1;
ex_append(eap);
}
void
ex_z(eap)
exarg_T *eap;
{
char_u *x;
int bigness = curwin->w_height - 3;
char_u kind;
int numbered = FALSE;
int minus = 0;
linenr_T start, end, curs, i;
int j;
linenr_T lnum = eap->line2;
if (bigness < 1)
bigness = 1;
x = eap->arg;
if (*x == '#')
{
numbered = TRUE;
++x;
}
kind = *x;
if (kind == '-' || kind == '+' || kind == '=' || kind == '^' || kind == '.')
++x;
if (*x != 0)
{
if (!VIM_ISDIGIT(*x))
{
EMSG(_("E144: non-numeric argument to :z"));
return;
}
else
bigness = atoi((char *)x);
}
switch (kind)
{
case '-':
start = lnum - bigness;
end = lnum;
curs = lnum;
break;
case '=':
start = lnum - bigness / 2 + 1;
end = lnum + bigness / 2 - 1;
curs = lnum;
minus = 1;
break;
case '^':
start = lnum - bigness * 2;
end = lnum - bigness;
curs = lnum - bigness;
break;
case '.':
start = lnum - bigness / 2;
end = lnum + bigness / 2;
curs = end;
break;
default: /* '+' */
start = lnum;
end = lnum + bigness;
curs = end;
break;
}
if (start < 1)
start = 1;
if (end > curbuf->b_ml.ml_line_count)
end = curbuf->b_ml.ml_line_count;
if (curs > curbuf->b_ml.ml_line_count)
curs = curbuf->b_ml.ml_line_count;
for (i = start; i <= end; i++)
{
if (minus && i == lnum)
{
msg_putchar('\n');
for (j = 1; j < Columns; j++)
msg_putchar('-');
}
print_line(i, numbered);
if (minus && i == lnum)
{
msg_putchar('\n');
for (j = 1; j < Columns; j++)
msg_putchar('-');
}
}
curwin->w_cursor.lnum = curs;
ex_no_reprint = TRUE;
}
/*
* Check if the restricted flag is set.
* If so, give an error message and return TRUE.
* Otherwise, return FALSE.
*/
int
check_restricted()
{
if (restricted)
{
EMSG(_("E145: Shell commands not allowed in rvim"));
return TRUE;
}
return FALSE;
}
/*
* Check if the secure flag is set (.exrc or .vimrc in current directory).
* If so, give an error message and return TRUE.
* Otherwise, return FALSE.
*/
int
check_secure()
{
if (secure)
{
secure = 2;
EMSG(_(e_curdir));
return TRUE;
}
#ifdef HAVE_SANDBOX
/*
* In the sandbox more things are not allowed, including the things
* disallowed in secure mode.
*/
if (sandbox != 0)
{
EMSG(_(e_sandbox));
return TRUE;
}
#endif
return FALSE;
}
static char_u *old_sub = NULL; /* previous substitute pattern */
static int global_need_beginline; /* call beginline() after ":g" */
/*
* When ":global" is used to number of substitutions and changed lines is
* accumulated until it's finished.
*/
static long sub_nsubs; /* total number of substitutions */
static linenr_T sub_nlines; /* total number of lines changed */
/* do_sub()
*
* Perform a substitution from line eap->line1 to line eap->line2 using the
* command pointed to by eap->arg which should be of the form:
*
* /pattern/substitution/{flags}
*
* The usual escapes are supported as described in the regexp docs.
*/
void
do_sub(eap)
exarg_T *eap;
{
linenr_T lnum;
long i = 0;
regmmatch_T regmatch;
static int do_all = FALSE; /* do multiple substitutions per line */
static int do_ask = FALSE; /* ask for confirmation */
static int do_error = TRUE; /* if false, ignore errors */
static int do_print = FALSE; /* print last line with subs. */
static int do_ic = 0; /* ignore case flag */
char_u *pat = NULL, *sub = NULL; /* init for GCC */
int delimiter;
int sublen;
int got_quit = FALSE;
int got_match = FALSE;
int temp;
int which_pat;
char_u *cmd;
int save_State;
linenr_T first_line = 0; /* first changed line */
linenr_T last_line= 0; /* below last changed line AFTER the
* change */
linenr_T old_line_count = curbuf->b_ml.ml_line_count;
linenr_T line2;
long nmatch; /* number of lines in match */
linenr_T sub_firstlnum; /* nr of first sub line */
char_u *sub_firstline; /* allocated copy of first sub line */
cmd = eap->arg;
if (!global_busy)
{
sub_nsubs = 0;
sub_nlines = 0;
}
#ifdef FEAT_FKMAP /* reverse the flow of the Farsi characters */
if (p_altkeymap && curwin->w_p_rl)
lrF_sub(cmd);
#endif
if (eap->cmdidx == CMD_tilde)
which_pat = RE_LAST; /* use last used regexp */
else
which_pat = RE_SUBST; /* use last substitute regexp */
/* new pattern and substitution */
if (eap->cmd[0] == 's' && *cmd != NUL && !vim_iswhite(*cmd)
&& vim_strchr((char_u *)"0123456789cegriIp|\"", *cmd) == NULL)
{
/* don't accept alphanumeric for separator */
if (isalpha(*cmd))
{
EMSG(_("E146: Regular expressions can't be delimited by letters"));
return;
}
/*
* undocumented vi feature:
* "\/sub/" and "\?sub?" use last used search pattern (almost like
* //sub/r). "\&sub&" use last substitute pattern (like //sub/).
*/
if (*cmd == '\\')
{
++cmd;
if (vim_strchr((char_u *)"/?&", *cmd) == NULL)
{
EMSG(_(e_backslash));
return;
}
if (*cmd != '&')
which_pat = RE_SEARCH; /* use last '/' pattern */
pat = (char_u *)""; /* empty search pattern */
delimiter = *cmd++; /* remember delimiter character */
}
else /* find the end of the regexp */
{
which_pat = RE_LAST; /* use last used regexp */
delimiter = *cmd++; /* remember delimiter character */
pat = cmd; /* remember start of search pat */
cmd = skip_regexp(cmd, delimiter, p_magic, &eap->arg);
if (cmd[0] == delimiter) /* end delimiter found */
*cmd++ = NUL; /* replace it with a NUL */
}
/*
* Small incompatibility: vi sees '\n' as end of the command, but in
* Vim we want to use '\n' to find/substitute a NUL.
*/
sub = cmd; /* remember the start of the substitution */
while (cmd[0])
{
if (cmd[0] == delimiter) /* end delimiter found */
{
*cmd++ = NUL; /* replace it with a NUL */
break;
}
if (cmd[0] == '\\' && cmd[1] != 0) /* skip escaped characters */
++cmd;
mb_ptr_adv(cmd);
}
if (!eap->skip)
{
vim_free(old_sub);
old_sub = vim_strsave(sub);
}
}
else if (!eap->skip) /* use previous pattern and substitution */
{
if (old_sub == NULL) /* there is no previous command */
{
EMSG(_(e_nopresub));
return;
}
pat = NULL; /* search_regcomp() will use previous pattern */
sub = old_sub;
}
/*
* Find trailing options. When '&' is used, keep old options.
*/
if (*cmd == '&')
++cmd;
else
{
if (!p_ed)
{
if (p_gd) /* default is global on */
do_all = TRUE;
else
do_all = FALSE;
do_ask = FALSE;
}
do_error = TRUE;
do_print = FALSE;
do_ic = 0;
}
while (*cmd)
{
/*
* Note that 'g' and 'c' are always inverted, also when p_ed is off.
* 'r' is never inverted.
*/
if (*cmd == 'g')
do_all = !do_all;
else if (*cmd == 'c')
do_ask = !do_ask;
else if (*cmd == 'e')
do_error = !do_error;
else if (*cmd == 'r') /* use last used regexp */
which_pat = RE_LAST;
else if (*cmd == 'p')
do_print = TRUE;
else if (*cmd == 'i') /* ignore case */
do_ic = 'i';
else if (*cmd == 'I') /* don't ignore case */
do_ic = 'I';
else
break;
++cmd;
}
/*
* check for a trailing count
*/
cmd = skipwhite(cmd);
if (VIM_ISDIGIT(*cmd))
{
i = getdigits(&cmd);
if (i <= 0 && !eap->skip && do_error)
{
EMSG(_(e_zerocount));
return;
}
eap->line1 = eap->line2;
eap->line2 += i - 1;
if (eap->line2 > curbuf->b_ml.ml_line_count)
eap->line2 = curbuf->b_ml.ml_line_count;
}
/*
* check for trailing command or garbage
*/
cmd = skipwhite(cmd);
if (*cmd && *cmd != '"') /* if not end-of-line or comment */
{
eap->nextcmd = check_nextcmd(cmd);
if (eap->nextcmd == NULL)
{
EMSG(_(e_trailing));
return;
}
}
if (eap->skip) /* not executing commands, only parsing */
return;
if (search_regcomp(pat, RE_SUBST, which_pat, SEARCH_HIS, &regmatch) == FAIL)
{
if (do_error)
EMSG(_(e_invcmd));
return;
}
/* the 'i' or 'I' flag overrules 'ignorecase' and 'smartcase' */
if (do_ic == 'i')
regmatch.rmm_ic = TRUE;
else if (do_ic == 'I')
regmatch.rmm_ic = FALSE;
sub_firstline = NULL;
/*
* ~ in the substitute pattern is replaced with the old pattern.
* We do it here once to avoid it to be replaced over and over again.
* But don't do it when it starts with "\=", then it's an expression.
*/
if (!(sub[0] == '\\' && sub[1] == '='))
sub = regtilde(sub, p_magic);
/*
* Check for a match on each line.
*/
line2 = eap->line2;
for (lnum = eap->line1; lnum <= line2 && !(got_quit
#if defined(FEAT_EVAL) && defined(FEAT_AUTOCMD)
|| aborting()
#endif
); ++lnum)
{
sub_firstlnum = lnum;
nmatch = vim_regexec_multi(&regmatch, curwin, curbuf, lnum, (colnr_T)0);
if (nmatch)
{
colnr_T copycol;
colnr_T matchcol;
colnr_T prev_matchcol = MAXCOL;
char_u *new_end, *new_start = NULL;
unsigned new_start_len = 0;
char_u *p1;
int did_sub = FALSE;
int lastone;
unsigned len, needed_len;
long nmatch_tl = 0; /* nr of lines matched below lnum */
int do_again; /* do it again after joining lines */
int skip_match = FALSE;
/*
* The new text is build up step by step, to avoid too much
* copying. There are these pieces:
* sub_firstline The old text, unmodifed.
* copycol Column in the old text where we started
* looking for a match; from here old text still
* needs to be copied to the new text.
* matchcol Column number of the old text where to look
* for the next match. It's just after the
* previous match or one further.
* prev_matchcol Column just after the previous match (if any).
* Mostly equal to matchcol, except for the first
* match and after skipping an empty match.
* regmatch.*pos Where the pattern matched in the old text.
* new_start The new text, all that has been produced so
* far.
* new_end The new text, where to append new text.
*
* lnum The line number where we were looking for the
* first match in the old line.
* sub_firstlnum The line number in the buffer where to look
* for a match. Can be different from "lnum"
* when the pattern or substitute string contains
* line breaks.
*
* Special situations:
* - When the substitute string contains a line break, the part up
* to the line break is inserted in the text, but the copy of
* the original line is kept. "sub_firstlnum" is adjusted for
* the inserted lines.
* - When the matched pattern contains a line break, the old line
* is taken from the line at the end of the pattern. The lines
* in the match are deleted later, "sub_firstlnum" is adjusted
* accordingly.
*
* The new text is built up in new_start[]. It has some extra
* room to avoid using alloc()/free() too often. new_start_len is
* the lenght of the allocated memory at new_start.
*
* Make a copy of the old line, so it won't be taken away when
* updating the screen or handling a multi-line match. The "old_"
* pointers point into this copy.
*/
sub_firstline = vim_strsave(ml_get(sub_firstlnum));
if (sub_firstline == NULL)
{
vim_free(new_start);
goto outofmem;
}
copycol = 0;
matchcol = 0;
/* At first match, remember current cursor position. */
if (!got_match)
{
setpcmark();
got_match = TRUE;
}
/*
* Loop until nothing more to replace in this line.
* 1. Handle match with empty string.
* 2. If do_ask is set, ask for confirmation.
* 3. substitute the string.
* 4. if do_all is set, find next match
* 5. break if there isn't another match in this line
*/
for (;;)
{
/* Save the line number of the last change for the final
* cursor position (just like Vi). */
curwin->w_cursor.lnum = lnum;
do_again = FALSE;
/*
* 1. Match empty string does not count, except for first
* match. This reproduces the strange vi behaviour.
* This also catches endless loops.
*/
if (matchcol == prev_matchcol
&& regmatch.endpos[0].lnum == 0
&& matchcol == regmatch.endpos[0].col)
{
if (sub_firstline[matchcol] == NUL)
/* We already were at the end of the line. Don't look
* for a match in this line again. */
skip_match = TRUE;
else
++matchcol; /* search for a match at next column */
goto skip;
}
/* Normally we continue searching for a match just after the
* previous match. */
matchcol = regmatch.endpos[0].col;
prev_matchcol = matchcol;
/*
* 2. If do_ask is set, ask for confirmation.
*/
if (do_ask)
{
/* change State to CONFIRM, so that the mouse works
* properly */
save_State = State;
State = CONFIRM;
#ifdef FEAT_MOUSE
setmouse(); /* disable mouse in xterm */
#endif
curwin->w_cursor.col = regmatch.startpos[0].col;
/* When 'cpoptions' contains "u" don't sync undo when
* asking for confirmation. */
if (vim_strchr(p_cpo, CPO_UNDO) != NULL)
++no_u_sync;
/*
* Loop until 'y', 'n', 'q', CTRL-E or CTRL-Y typed.
*/
while (do_ask)
{
#ifdef FEAT_FOLDING
int save_p_fen = curwin->w_p_fen;
curwin->w_p_fen = FALSE;
#endif
/* Invert the matched string.
* Remove the inversion afterwards. */
temp = RedrawingDisabled;
RedrawingDisabled = 0;
search_match_lines = regmatch.endpos[0].lnum;
search_match_endcol = regmatch.endpos[0].col;
highlight_match = TRUE;
update_topline();
validate_cursor();
update_screen(NOT_VALID);
highlight_match = FALSE;
redraw_later(NOT_VALID);
#ifdef FEAT_FOLDING
curwin->w_p_fen = save_p_fen;
#endif
if (msg_row == Rows - 1)
msg_didout = FALSE; /* avoid a scroll-up */
msg_starthere();
i = msg_scroll;
msg_scroll = 0; /* truncate msg when needed */
msg_no_more = TRUE;
/* write message same highlighting as for wait_return */
smsg_attr(hl_attr(HLF_R),
(char_u *)_("replace with %s (y/n/a/q/l/^E/^Y)?"),
sub);
msg_no_more = FALSE;
msg_scroll = i;
showruler(TRUE);
windgoto(msg_row, msg_col);
RedrawingDisabled = temp;
#ifdef USE_ON_FLY_SCROLL
dont_scroll = FALSE; /* allow scrolling here */
#endif
++no_mapping; /* don't map this key */
++allow_keys; /* allow special keys */
i = safe_vgetc();
--allow_keys;
--no_mapping;
/* clear the question */
msg_didout = FALSE; /* don't scroll up */
msg_col = 0;
gotocmdline(TRUE);
need_wait_return = FALSE; /* no hit-return prompt */
if (i == 'q' || i == ESC || i == Ctrl_C
#ifdef UNIX
|| i == intr_char
#endif
)
{
got_quit = TRUE;
break;
}
if (i == 'n')
break;
if (i == 'y')
break;
if (i == 'l')
{
/* last: replace and then stop */
do_all = FALSE;
line2 = lnum;
break;
}
if (i == 'a')
{
do_ask = FALSE;
break;
}
#ifdef FEAT_INS_EXPAND
if (i == Ctrl_E)
scrollup_clamp();
else if (i == Ctrl_Y)
scrolldown_clamp();
#endif
}
State = save_State;
#ifdef FEAT_MOUSE
setmouse();
#endif
if (vim_strchr(p_cpo, CPO_UNDO) != NULL)
--no_u_sync;
if (i == 'n')
{
/* For a multi-line match, put matchcol at the NUL at
* the end of the line and set nmatch to one, so that
* we continue looking for a match on the next line.
* Avoids that ":s/\nB\@=//gc" get stuck. */
if (nmatch > 1)
{
matchcol = STRLEN(sub_firstline);
nmatch = 1;
}
goto skip;
}
if (got_quit)
break;
}
/* Move the cursor to the start of the match, so that we can
* use "\=col("."). */
curwin->w_cursor.col = regmatch.startpos[0].col;
/*
* 3. substitute the string.
*/
/* get length of substitution part */
sublen = vim_regsub_multi(&regmatch, sub_firstlnum,
sub, sub_firstline, FALSE, p_magic, TRUE);
/* Need room for:
* - result so far in new_start (not for first sub in line)
* - original text up to match
* - length of substituted part
* - original text after match
*/
if (nmatch == 1)
p1 = sub_firstline;
else
{
p1 = ml_get(sub_firstlnum + nmatch - 1);
nmatch_tl += nmatch - 1;
}
i = regmatch.startpos[0].col - copycol;
needed_len = i + ((unsigned)STRLEN(p1) - regmatch.endpos[0].col)
+ sublen + 1;
if (new_start == NULL)
{
/*
* Get some space for a temporary buffer to do the
* substitution into (and some extra space to avoid
* too many calls to alloc()/free()).
*/
new_start_len = needed_len + 50;
if ((new_start = alloc_check(new_start_len)) == NULL)
goto outofmem;
*new_start = NUL;
new_end = new_start;
}
else
{
/*
* Check if the temporary buffer is long enough to do the
* substitution into. If not, make it larger (with a bit
* extra to avoid too many calls to alloc()/free()).
*/
len = (unsigned)STRLEN(new_start);
needed_len += len;
if (needed_len > new_start_len)
{
new_start_len = needed_len + 50;
if ((p1 = alloc_check(new_start_len)) == NULL)
{
vim_free(new_start);
goto outofmem;
}
mch_memmove(p1, new_start, (size_t)(len + 1));
vim_free(new_start);
new_start = p1;
}
new_end = new_start + len;
}
/*
* copy the text up to the part that matched
*/
mch_memmove(new_end, sub_firstline + copycol, (size_t)i);
new_end += i;
(void)vim_regsub_multi(&regmatch, sub_firstlnum,
sub, new_end, TRUE, p_magic, TRUE);
sub_nsubs++;
did_sub = TRUE;
/* Move the cursor to the start of the line, to avoid that it
* is beyond the end of the line after the substitution. */
curwin->w_cursor.col = 0;
/* For a multi-line match, make a copy of the last matched
* line and continue in that one. */
if (nmatch > 1)
{
sub_firstlnum += nmatch - 1;
vim_free(sub_firstline);
sub_firstline = vim_strsave(ml_get(sub_firstlnum));
/* When going beyond the last line, stop substituting. */
if (sub_firstlnum <= line2)
do_again = TRUE;
else
do_all = FALSE;
}
/* Remember next character to be copied. */
copycol = regmatch.endpos[0].col;
/*
* Now the trick is to replace CTRL-M chars with a real line
* break. This would make it impossible to insert a CTRL-M in
* the text. The line break can be avoided by preceding the
* CTRL-M with a backslash. To be able to insert a backslash,
* they must be doubled in the string and are halved here.
* That is Vi compatible.
*/
for (p1 = new_end; *p1; ++p1)
{
if (p1[0] == '\\' && p1[1] != NUL) /* remove backslash */
mch_memmove(p1, p1 + 1, STRLEN(p1));
else if (*p1 == CAR)
{
if (u_inssub(lnum) == OK) /* prepare for undo */
{
*p1 = NUL; /* truncate up to the CR */
ml_append(lnum - 1, new_start,
(colnr_T)(p1 - new_start + 1), FALSE);
mark_adjust(lnum + 1, (linenr_T)MAXLNUM, 1L, 0L);
if (do_ask)
appended_lines(lnum - 1, 1L);
else
{
if (first_line == 0)
first_line = lnum;
last_line = lnum + 1;
}
/* All line numbers increase. */
++sub_firstlnum;
++lnum;
++line2;
/* move the cursor to the new line, like Vi */
++curwin->w_cursor.lnum;
STRCPY(new_start, p1 + 1); /* copy the rest */
p1 = new_start - 1;
}
}
#ifdef FEAT_MBYTE
else if (has_mbyte)
p1 += (*mb_ptr2len_check)(p1) - 1;
#endif
}
/*
* 4. If do_all is set, find next match.
* Prevent endless loop with patterns that match empty
* strings, e.g. :s/$/pat/g or :s/[a-z]* /(&)/g.
* But ":s/\n/#/" is OK.
*/
skip:
/* We already know that we did the last subst when we are at
* the end of the line, except that a pattern like
* "bar\|\nfoo" may match at the NUL. */
lastone = (skip_match
|| got_int
|| got_quit
|| !(do_all || do_again)
|| (sub_firstline[matchcol] == NUL && nmatch <= 1
&& !re_multiline(regmatch.regprog)));
nmatch = -1;
/*
* Replace the line in the buffer when needed. This is
* skipped when there are more matches.
* The check for nmatch_tl is needed for when multi-line
* matching must replace the lines before trying to do another
* match, otherwise "\@<=" won't work.
* When asking the user we like to show the already replaced
* text, but don't do it when "\<@=" or "\<@!" is used, it
* changes what matches.
*/
if (lastone
|| (do_ask && !re_lookbehind(regmatch.regprog))
|| nmatch_tl > 0
|| (nmatch = vim_regexec_multi(&regmatch, curwin,
curbuf, sub_firstlnum, matchcol)) == 0)
{
if (new_start != NULL)
{
/*
* Copy the rest of the line, that didn't match.
* "matchcol" has to be adjusted, we use the end of
* the line as reference, because the substitute may
* have changed the number of characters. Same for
* "prev_matchcol".
*/
STRCAT(new_start, sub_firstline + copycol);
matchcol = (colnr_T)STRLEN(sub_firstline) - matchcol;
prev_matchcol = (colnr_T)STRLEN(sub_firstline)
- prev_matchcol;
if (u_savesub(lnum) != OK)
break;
ml_replace(lnum, new_start, TRUE);
if (nmatch_tl > 0)
{
/*
* Matched lines have now been substituted and are
* useless, delete them. The part after the match
* has been appended to new_start, we don't need
* it in the buffer.
*/
++lnum;
if (u_savedel(lnum, nmatch_tl) != OK)
break;
for (i = 0; i < nmatch_tl; ++i)
ml_delete(lnum, (int)FALSE);
mark_adjust(lnum, lnum + nmatch_tl - 1,
(long)MAXLNUM, -nmatch_tl);
if (do_ask)
deleted_lines(lnum, nmatch_tl);
--lnum;
line2 -= nmatch_tl; /* nr of lines decreases */
nmatch_tl = 0;
}
/* When asking, undo is saved each time, must also set
* changed flag each time. */
if (do_ask)
changed_bytes(lnum, 0);
else
{
if (first_line == 0)
first_line = lnum;
last_line = lnum + 1;
}
sub_firstlnum = lnum;
vim_free(sub_firstline); /* free the temp buffer */
sub_firstline = new_start;
new_start = NULL;
matchcol = (colnr_T)STRLEN(sub_firstline) - matchcol;
prev_matchcol = (colnr_T)STRLEN(sub_firstline)
- prev_matchcol;
copycol = 0;
}
if (nmatch == -1 && !lastone)
nmatch = vim_regexec_multi(&regmatch, curwin, curbuf,
sub_firstlnum, matchcol);
/*
* 5. break if there isn't another match in this line
*/
if (nmatch <= 0)
break;
}
line_breakcheck();
}
if (did_sub)
++sub_nlines;
vim_free(sub_firstline); /* free the copy of the original line */
sub_firstline = NULL;
}
line_breakcheck();
}
if (first_line != 0)
{
/* Need to subtract the number of added lines from "last_line" to get
* the line number before the change (same as adding the number of
* deleted lines). */
i = curbuf->b_ml.ml_line_count - old_line_count;
changed_lines(first_line, 0, last_line - i, i);
}
outofmem:
vim_free(sub_firstline); /* may have to free allocated copy of the line */
if (sub_nsubs)
{
/* Set the '[ and '] marks. */
curbuf->b_op_start.lnum = eap->line1;
curbuf->b_op_end.lnum = line2;
curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
if (!global_busy)
{
beginline(BL_WHITE | BL_FIX);
if (!do_sub_msg() && do_ask)
MSG("");
}
else
global_need_beginline = TRUE;
if (do_print)
print_line(curwin->w_cursor.lnum, FALSE);
}
else if (!global_busy)
{
if (got_int) /* interrupted */
EMSG(_(e_interr));
else if (got_match) /* did find something but nothing substituted */
MSG("");
else if (do_error) /* nothing found */
EMSG2(_(e_patnotf2), get_search_pat());
}
vim_free(regmatch.regprog);
}
/*
* Give message for number of substitutions.
* Can also be used after a ":global" command.
* Return TRUE if a message was given.
*/
static int
do_sub_msg()
{
/*
* Only report substitutions when:
* - more than 'report' substitutions
* - command was typed by user, or number of changed lines > 'report'
* - giving messages is not disabled by 'lazyredraw'
*/
if (sub_nsubs > p_report
&& (KeyTyped || sub_nlines > 1 || p_report < 1)
&& messaging())
{
if (got_int)
STRCPY(msg_buf, _("(Interrupted) "));
else
msg_buf[0] = NUL;
if (sub_nsubs == 1)
STRCAT(msg_buf, _("1 substitution"));
else
sprintf((char *)msg_buf + STRLEN(msg_buf), _("%ld substitutions"),
sub_nsubs);
if (sub_nlines == 1)
STRCAT(msg_buf, _(" on 1 line"));
else
sprintf((char *)msg_buf + STRLEN(msg_buf), _(" on %ld lines"),
(long)sub_nlines);
if (msg(msg_buf))
{
/* save message to display it after redraw */
set_keep_msg(msg_buf);
keep_msg_attr = 0;
}
return TRUE;
}
if (got_int)
{
EMSG(_(e_interr));
return TRUE;
}
return FALSE;
}
/*
* Execute a global command of the form:
*
* g/pattern/X : execute X on all lines where pattern matches
* v/pattern/X : execute X on all lines where pattern does not match
*
* where 'X' is an EX command
*
* The command character (as well as the trailing slash) is optional, and
* is assumed to be 'p' if missing.
*
* This is implemented in two passes: first we scan the file for the pattern and
* set a mark for each line that (not) matches. secondly we execute the command
* for each line that has a mark. This is required because after deleting
* lines we do not know where to search for the next match.
*/
void
ex_global(eap)
exarg_T *eap;
{
linenr_T lnum; /* line number according to old situation */
int ndone;
int type; /* first char of cmd: 'v' or 'g' */
char_u *cmd; /* command argument */
char_u delim; /* delimiter, normally '/' */
char_u *pat;
regmmatch_T regmatch;
int match;
int which_pat;
if (global_busy)
{
EMSG(_("E147: Cannot do :global recursive")); /* will increment global_busy */
return;
}
if (eap->forceit) /* ":global!" is like ":vglobal" */
type = 'v';
else
type = *eap->cmd;
cmd = eap->arg;
which_pat = RE_LAST; /* default: use last used regexp */
sub_nsubs = 0;
sub_nlines = 0;
/*
* undocumented vi feature:
* "\/" and "\?": use previous search pattern.
* "\&": use previous substitute pattern.
*/
if (*cmd == '\\')
{
++cmd;
if (vim_strchr((char_u *)"/?&", *cmd) == NULL)
{
EMSG(_(e_backslash));
return;
}
if (*cmd == '&')
which_pat = RE_SUBST; /* use previous substitute pattern */
else
which_pat = RE_SEARCH; /* use previous search pattern */
++cmd;
pat = (char_u *)"";
}
else if (*cmd == NUL)
{
EMSG(_("E148: Regular expression missing from global"));
return;
}
else
{
delim = *cmd; /* get the delimiter */
if (delim)
++cmd; /* skip delimiter if there is one */
pat = cmd; /* remember start of pattern */
cmd = skip_regexp(cmd, delim, p_magic, &eap->arg);
if (cmd[0] == delim) /* end delimiter found */
*cmd++ = NUL; /* replace it with a NUL */
}
#ifdef FEAT_FKMAP /* when in Farsi mode, reverse the character flow */
if (p_altkeymap && curwin->w_p_rl)
lrFswap(pat,0);
#endif
if (search_regcomp(pat, RE_BOTH, which_pat, SEARCH_HIS, &regmatch) == FAIL)
{
EMSG(_(e_invcmd));
return;
}
/*
* pass 1: set marks for each (not) matching line
*/
ndone = 0;
for (lnum = eap->line1; lnum <= eap->line2 && !got_int; ++lnum)
{
/* a match on this line? */
match = vim_regexec_multi(&regmatch, curwin, curbuf, lnum, (colnr_T)0);
if ((type == 'g' && match) || (type == 'v' && !match))
{
ml_setmarked(lnum);
ndone++;
}
line_breakcheck();
}
/*
* pass 2: execute the command for each line that has been marked
*/
if (got_int)
MSG(_(e_interr));
else if (ndone == 0)
{
if (type == 'v')
msg_str((char_u *)_("Pattern found in every line: %s"), pat);
else
msg_str((char_u *)_(e_patnotf2), pat);
}
else
global_exe(cmd);
ml_clearmarked(); /* clear rest of the marks */
vim_free(regmatch.regprog);
}
/*
* Execute "cmd" on lines marked with ml_setmarked().
*/
void
global_exe(cmd)
char_u *cmd;
{
linenr_T old_lcount; /* b_ml.ml_line_count before the command */
linenr_T lnum; /* line number according to old situation */
/*
* Set current position only once for a global command.
* If global_busy is set, setpcmark() will not do anything.
* If there is an error, global_busy will be incremented.
*/
setpcmark();
/* When the command writes a message, don't overwrite the command. */
msg_didout = TRUE;
global_need_beginline = FALSE;
global_busy = 1;
old_lcount = curbuf->b_ml.ml_line_count;
while (!got_int && (lnum = ml_firstmarked()) != 0 && global_busy == 1)
{
curwin->w_cursor.lnum = lnum;
curwin->w_cursor.col = 0;
if (*cmd == NUL || *cmd == '\n')
do_cmdline((char_u *)"p", NULL, NULL, DOCMD_NOWAIT);
else
do_cmdline(cmd, NULL, NULL, DOCMD_NOWAIT);
ui_breakcheck();
}
global_busy = 0;
if (global_need_beginline)
beginline(BL_WHITE | BL_FIX);
else
check_cursor(); /* cursor may be beyond the end of the line */
/* the cursor may not have moved in the text but a change in a previous
* line may move it on the screen */
changed_line_abv_curs();
/* If it looks like no message was written, allow overwriting the
* command with the report for number of changes. */
if (msg_col == 0 && msg_scrolled == 0)
msg_didout = FALSE;
/* If subsitutes done, report number of substitues, otherwise report
* number of extra or deleted lines. */
if (!do_sub_msg())
msgmore(curbuf->b_ml.ml_line_count - old_lcount);
}
#ifdef FEAT_VIMINFO
int
read_viminfo_sub_string(virp, force)
vir_T *virp;
int force;
{
if (old_sub != NULL && force)
vim_free(old_sub);
if (force || old_sub == NULL)
old_sub = viminfo_readstring(virp, 1, TRUE);
return viminfo_readline(virp);
}
void
write_viminfo_sub_string(fp)
FILE *fp;
{
if (get_viminfo_parameter('/') != 0 && old_sub != NULL)
{
fprintf(fp, _("\n# Last Substitute String:\n$"));
viminfo_writestring(fp, old_sub);
}
}
#endif /* FEAT_VIMINFO */
#if (defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)) || defined(PROTO)
/*
* Set up for a tagpreview.
*/
void
prepare_tagpreview()
{
win_T *wp;
# ifdef FEAT_GUI
need_mouse_correct = TRUE;
# endif
/*
* If there is already a preview window open, use that one.
*/
if (!curwin->w_p_pvw)
{
for (wp = firstwin; wp != NULL; wp = wp->w_next)
if (wp->w_p_pvw)
break;
if (wp != NULL)
win_enter(wp, TRUE);
else
{
/*
* There is no preview window open yet. Create one.
*/
if (win_split(g_do_tagpreview > 0 ? g_do_tagpreview : 0, 0)
== FAIL)
return;
curwin->w_p_pvw = TRUE;
curwin->w_p_wfh = TRUE;
# ifdef FEAT_SCROLLBIND
curwin->w_p_scb = FALSE; /* don't take over 'scrollbind' */
# endif
# ifdef FEAT_DIFF
curwin->w_p_diff = FALSE; /* no 'diff' */
# endif
# ifdef FEAT_FOLDING
curwin->w_p_fdc = 0; /* no 'foldcolumn' */
# endif
}
}
}
#endif
/*
* ":help": open a read-only window on a help file
*/
void
ex_help(eap)
exarg_T *eap;
{
char_u *arg;
char_u *tag;
FILE *helpfd; /* file descriptor of help file */
int n;
int i;
#ifdef FEAT_WINDOWS
win_T *wp;
#endif
int num_matches;
char_u **matches;
char_u *p;
int empty_fnum = 0;
int alt_fnum = 0;
buf_T *buf;
#ifdef FEAT_MULTI_LANG
int len;
char_u *lang;
#endif
if (eap != NULL)
{
/*
* A ":help" command ends at the first LF, or at a '|' that is
* followed by some text. Set nextcmd to the following command.
*/
for (arg = eap->arg; *arg; ++arg)
{
if (*arg == '\n' || *arg == '\r'
|| (*arg == '|' && arg[1] != NUL && arg[1] != '|'))
{
*arg++ = NUL;
eap->nextcmd = arg;
break;
}
}
arg = eap->arg;
if (eap->forceit && *arg == NUL)
{
EMSG(_("E478: Don't panic!"));
return;
}
if (eap->skip) /* not executing commands */
return;
}
else
arg = (char_u *)"";
/* remove trailing blanks */
p = arg + STRLEN(arg) - 1;
while (p > arg && vim_iswhite(*p) && p[-1] != '\\')
*p-- = NUL;
#ifdef FEAT_MULTI_LANG
/* Check for a specified language */
lang = check_help_lang(arg);
#endif
/* When no argument given go to the index. */
if (*arg == NUL)
arg = (char_u *)"help.txt";
/*
* Check if there is a match for the argument.
*/
n = find_help_tags(arg, &num_matches, &matches,
eap != NULL && eap->forceit);
i = 0;
#ifdef FEAT_MULTI_LANG
if (n != FAIL && lang != NULL)
/* Find first item with the requested language. */
for (i = 0; i < num_matches; ++i)
{
len = STRLEN(matches[i]);
if (len > 3 && matches[i][len - 3] == '@'
&& STRICMP(matches[i] + len - 2, lang) == 0)
break;
}
#endif
if (i >= num_matches || n == FAIL)
{
#ifdef FEAT_MULTI_LANG
if (lang != NULL)
EMSG3(_("E661: Sorry, no '%s' help for %s"), lang, arg);
else
#endif
EMSG2(_("E149: Sorry, no help for %s"), arg);
if (n != FAIL)
FreeWild(num_matches, matches);
return;
}
/* The first match (in the requested language) is the best match. */
tag = vim_strsave(matches[i]);
FreeWild(num_matches, matches);
#ifdef FEAT_GUI
need_mouse_correct = TRUE;
#endif
/*
* Re-use an existing help window or open a new one.
*/
if (!curwin->w_buffer->b_help)
{
#ifdef FEAT_WINDOWS
for (wp = firstwin; wp != NULL; wp = wp->w_next)
if (wp->w_buffer != NULL && wp->w_buffer->b_help)
break;
if (wp != NULL && wp->w_buffer->b_nwindows > 0)
win_enter(wp, TRUE);
else
#endif
{
/*
* There is no help window yet.
* Try to open the file specified by the "helpfile" option.
*/
if ((helpfd = mch_fopen((char *)p_hf, READBIN)) == NULL)
{
msg_str((char_u *)_("Sorry, help file \"%s\" not found"),
p_hf);
goto erret;
}
fclose(helpfd);
#ifdef FEAT_WINDOWS
/* Split off help window; put it at far top if no position
* specified, the current window is vertically split and narrow. */
n = WSP_HELP;
# ifdef FEAT_VERTSPLIT
if (cmdmod.split == 0 && curwin->w_width != Columns
&& curwin->w_width < 80)
n |= WSP_TOP;
# endif
if (win_split(0, n) == FAIL)
#else
/* use current window */
if (!can_abandon(curbuf, FALSE))
#endif
goto erret;
#ifdef FEAT_WINDOWS
if (curwin->w_height < p_hh)
win_setheight((int)p_hh);
#endif
/*
* Open help file (do_ecmd() will set b_help flag, readfile() will
* set b_p_ro flag).
* Set the alternate file to the previously edited file.
*/
alt_fnum = curbuf->b_fnum;
(void)do_ecmd(0, NULL, NULL, NULL, ECMD_LASTL,
ECMD_HIDE + ECMD_SET_HELP);
if (!cmdmod.keepalt)
curwin->w_alt_fnum = alt_fnum;
empty_fnum = curbuf->b_fnum;
}
}
if (!p_im)
restart_edit = 0; /* don't want insert mode in help file */
if (tag != NULL)
do_tag(tag, DT_HELP, 1, FALSE, TRUE);
/* Delete the empty buffer if we're not using it. */
if (empty_fnum != 0 && curbuf->b_fnum != empty_fnum)
{
buf = buflist_findnr(empty_fnum);
if (buf != NULL)
wipe_buffer(buf, TRUE);
}
/* keep the previous alternate file */
if (alt_fnum != 0 && curwin->w_alt_fnum == empty_fnum && !cmdmod.keepalt)
curwin->w_alt_fnum = alt_fnum;
erret:
vim_free(tag);
}
#if defined(FEAT_MULTI_LANG) || defined(PROTO)
/*
* In an argument search for a language specifiers in the form "@xx".
* Changes the "@" to NUL if found, and returns a pointer to "xx".
* Returns NULL if not found.
*/
char_u *
check_help_lang(arg)
char_u *arg;
{
int len = STRLEN(arg);
if (len >= 3 && arg[len - 3] == '@' && ASCII_ISALPHA(arg[len - 2])
&& ASCII_ISALPHA(arg[len - 1]))
{
arg[len - 3] = NUL; /* remove the '@' */
return arg + len - 2;
}
return NULL;
}
#endif
/*
* Return a heuristic indicating how well the given string matches. The
* smaller the number, the better the match. This is the order of priorities,
* from best match to worst match:
* - Match with least alpha-numeric characters is better.
* - Match with least total characters is better.
* - Match towards the start is better.
* - Match starting with "+" is worse (feature instead of command)
* Assumption is made that the matched_string passed has already been found to
* match some string for which help is requested. webb.
*/
int
help_heuristic(matched_string, offset, wrong_case)
char_u *matched_string;
int offset; /* offset for match */
int wrong_case; /* no matching case */
{
int num_letters;
char_u *p;
num_letters = 0;
for (p = matched_string; *p; p++)
if (ASCII_ISALNUM(*p))
num_letters++;
/*
* Multiply the number of letters by 100 to give it a much bigger
* weighting than the number of characters.
* If there only is a match while ignoring case, add 5000.
* If the match starts in the middle of a word, add 10000 to put it
* somewhere in the last half.
* If the match is more than 2 chars from the start, multiply by 200 to
* put it after matches at the start.
*/
if (ASCII_ISALNUM(matched_string[offset]) && offset > 0
&& ASCII_ISALNUM(matched_string[offset - 1]))
offset += 10000;
else if (offset > 2)
offset *= 200;
if (wrong_case)
offset += 5000;
/* Features are less interesting than the subjects themselves, but "+"
* alone is not a feature. */
if (matched_string[0] == '+' && matched_string[1] != NUL)
offset += 100;
return (int)(100 * num_letters + STRLEN(matched_string) + offset);
}
/*
* Compare functions for qsort() below, that checks the help heuristics number
* that has been put after the tagname by find_tags().
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
help_compare(s1, s2)
const void *s1;
const void *s2;
{
char *p1;
char *p2;
p1 = *(char **)s1 + strlen(*(char **)s1) + 1;
p2 = *(char **)s2 + strlen(*(char **)s2) + 1;
return strcmp(p1, p2);
}
/*
* Find all help tags matching "arg", sort them and return in matches[], with
* the number of matches in num_matches.
* The matches will be sorted with a "best" match algorithm.
* When "keep_lang" is TRUE try keeping the language of the current buffer.
*/
int
find_help_tags(arg, num_matches, matches, keep_lang)
char_u *arg;
int *num_matches;
char_u ***matches;
int keep_lang;
{
char_u *s, *d;
int i;
static char *(mtable[]) = {"*", "g*", "[*", "]*", ":*",
"/*", "/\\*", "\"*", "/\\(\\)",
"?", ":?", "?<CR>", "g?", "g?g?", "g??",
"/\\?", "/\\z(\\)",
"[count]", "[quotex]", "[range]",
"[pattern]", "\\|", "\\%$"};
static char *(rtable[]) = {"star", "gstar", "[star", "]star", ":star",
"/star", "/\\\\star", "quotestar", "/\\\\(\\\\)",
"?", ":?", "?<CR>", "g?", "g?g?", "g??",
"/\\\\?", "/\\\\z(\\\\)",
"\\[count]", "\\[quotex]", "\\[range]",
"\\[pattern]", "\\\\bar", "/\\\\%\\$"};
int flags;
d = IObuff; /* assume IObuff is long enough! */
/*
* Recognize a few exceptions to the rule. Some strings that contain '*'
* with "star". Otherwise '*' is recognized as a wildcard.
*/
for (i = sizeof(mtable) / sizeof(char *); --i >= 0; )
if (STRCMP(arg, mtable[i]) == 0)
{
STRCPY(d, rtable[i]);
break;
}
if (i < 0) /* no match in table */
{
/* Replace "\S" with "/\\S", etc. Otherwise every tag is matched.
* Also replace "\%^" and "\%(", they match every tag too.
* Also "\zs", "\z1", etc.
* Also "\@<", "\@=", "\@<=", etc.
* And also "\_$" and "\_^". */
if (arg[0] == '\\'
&& ((arg[1] != NUL && arg[2] == NUL)
|| (vim_strchr((char_u *)"%_z@", arg[1]) != NULL
&& arg[2] != NUL)))
{
STRCPY(d, "/\\\\");
STRCPY(d + 3, arg + 1);
/* Check for "/\\_$", should be "/\\_\$" */
if (d[3] == '_' && d[4] == '$')
STRCPY(d + 4, "\\$");
}
else
{
/* replace "[:...:]" with "\[:...:]"; "[+...]" with "\[++...]" */
if (arg[0] == '[' && (arg[1] == ':'
|| (arg[1] == '+' && arg[2] == '+')))
*d++ = '\\';
for (s = arg; *s; ++s)
{
/*
* Replace "|" with "bar" and '"' with "quote" to match the name of
* the tags for these commands.
* Replace "*" with ".*" and "?" with "." to match command line
* completion.
* Insert a backslash before '~', '$' and '.' to avoid their
* special meaning.
*/
if (d - IObuff > IOSIZE - 10) /* getting too long!? */
break;
switch (*s)
{
case '|': STRCPY(d, "bar");
d += 3;
continue;
case '"': STRCPY(d, "quote");
d += 5;
continue;
case '*': *d++ = '.';
break;
case '?': *d++ = '.';
continue;
case '$':
case '.':
case '~': *d++ = '\\';
break;
}
/*
* Replace "^x" by "CTRL-X". Don't do this for "^_" to make
* ":help i_^_CTRL-D" work.
* Insert '-' before and after "CTRL-X" when applicable.
*/
if (*s < ' ' || (*s == '^' && s[1] && (ASCII_ISALPHA(s[1])
|| vim_strchr((char_u *)"?@[\\]^", s[1]) != NULL)))
{
if (d > IObuff && d[-1] != '_')
*d++ = '_'; /* prepend a '_' */
STRCPY(d, "CTRL-");
d += 5;
if (*s < ' ')
{
#ifdef EBCDIC
*d++ = CtrlChar(*s);
#else
*d++ = *s + '@';
#endif
if (d[-1] == '\\')
*d++ = '\\'; /* double a backslash */
}
else
*d++ = *++s;
if (s[1] != NUL && s[1] != '_')
*d++ = '_'; /* append a '_' */
continue;
}
else if (*s == '^') /* "^" or "CTRL-^" or "^_" */
*d++ = '\\';
/*
* Insert a backslash before a backslash after a slash, for search
* pattern tags: "/\|" --> "/\\|".
*/
else if (s[0] == '\\' && s[1] != '\\'
&& *arg == '/' && s == arg + 1)
*d++ = '\\';
/* "CTRL-\_" -> "CTRL-\\_" to avoid the special meaning of "\_" in
* "CTRL-\_CTRL-N" */
if (STRNICMP(s, "CTRL-\\_", 7) == 0)
{
STRCPY(d, "CTRL-\\\\");
d += 7;
s += 6;
}
*d++ = *s;
/*
* If tag starts with ', toss everything after a second '. Fixes
* CTRL-] on 'option'. (would include the trailing '.').
*/
if (*s == '\'' && s > arg && *arg == '\'')
break;
}
*d = NUL;
}
}
*matches = (char_u **)"";
*num_matches = 0;
flags = TAG_HELP | TAG_REGEXP | TAG_NAMES | TAG_VERBOSE;
if (keep_lang)
flags |= TAG_KEEP_LANG;
if (find_tags(IObuff, num_matches, matches, flags, (int)MAXCOL, NULL) == OK
&& *num_matches > 0)
/* Sort the matches found on the heuristic number that is after the
* tag name. */
qsort((void *)*matches, (size_t)*num_matches,
sizeof(char_u *), help_compare);
return OK;
}
/*
* After reading a help file: May cleanup a help buffer when syntax
* highlighting is not used.
*/
void
fix_help_buffer()
{
linenr_T lnum;
char_u *line;
int in_example = FALSE;
int len;
char_u *p;
char_u *rt;
int mustfree;
/* set filetype to "help". */
set_option_value((char_u *)"ft", 0L, (char_u *)"help", OPT_LOCAL);
#ifdef FEAT_SYN_HL
if (!syntax_present(curbuf))
#endif
{
for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
{
line = ml_get_buf(curbuf, lnum, FALSE);
len = (int)STRLEN(line);
if (in_example && len > 0 && !vim_iswhite(line[0]))
{
/* End of example: non-white or '<' in first column. */
if (line[0] == '<')
{
/* blank-out a '<' in the first column */
line = ml_get_buf(curbuf, lnum, TRUE);
line[0] = ' ';
}
in_example = FALSE;
}
if (!in_example && len > 0)
{
if (line[len - 1] == '>' && (len == 1 || line[len - 2] == ' '))
{
/* blank-out a '>' in the last column (start of example) */
line = ml_get_buf(curbuf, lnum, TRUE);
line[len - 1] = ' ';
in_example = TRUE;
}
else if (line[len - 1] == '~')
{
/* blank-out a '~' at the end of line (header marker) */
line = ml_get_buf(curbuf, lnum, TRUE);
line[len - 1] = ' ';
}
}
}
}
/*
* In the "help.txt" file, add the locally added help files.
* This uses the very first line in the help file.
*/
if (fnamecmp(gettail(curbuf->b_fname), "help.txt") == 0)
{
for (lnum = 1; lnum < curbuf->b_ml.ml_line_count; ++lnum)
{
line = ml_get_buf(curbuf, lnum, FALSE);
if (strstr((char *)line, "*local-additions*") != NULL)
{
/* Go through all directories in 'runtimepath', skipping
* $VIMRUNTIME. */
p = p_rtp;
while (*p != NUL)
{
copy_option_part(&p, NameBuff, MAXPATHL, ",");
mustfree = FALSE;
rt = vim_getenv((char_u *)"VIMRUNTIME", &mustfree);
if (fullpathcmp(rt, NameBuff, FALSE) != FPC_SAME)
{
int fcount;
char_u **fnames;
FILE *fd;
char_u *s;
int fi;
#ifdef FEAT_MBYTE
vimconv_T vc;
char_u *cp;
#endif
/* Find all "doc/ *.txt" files in this directory. */
add_pathsep(NameBuff);
STRCAT(NameBuff, "doc/*.txt");
if (gen_expand_wildcards(1, &NameBuff, &fcount,
&fnames, EW_FILE|EW_SILENT) == OK
&& fcount > 0)
{
for (fi = 0; fi < fcount; ++fi)
{
fd = fopen((char *)fnames[fi], "r");
if (fd != NULL)
{
vim_fgets(IObuff, IOSIZE, fd);
if (IObuff[0] == '*'
&& (s = vim_strchr(IObuff + 1, '*'))
!= NULL)
{
#ifdef FEAT_MBYTE
int this_utf = MAYBE;
#endif
/* Change tag definition to a
* reference and remove <CR>/<NL>. */
IObuff[0] = '|';
*s = '|';
while (*s != NUL)
{
if (*s == '\r' || *s == '\n')
*s = NUL;
#ifdef FEAT_MBYTE
/* The text is utf-8 when a byte
* above 127 is found and no
* illegal byte sequence is found.
*/
if (*s >= 0x80 && this_utf != FALSE)
{
int l;
this_utf = TRUE;
l = utf_ptr2len_check(s);
if (l == 1)
this_utf = FALSE;
s += l - 1;
}
#endif
++s;
}
#ifdef FEAT_MBYTE
/* The help file is latin1 or utf-8;
* conversion to the current
* 'encoding' may be required. */
vc.vc_type = CONV_NONE;
convert_setup(&vc, (char_u *)(
this_utf == TRUE ? "utf-8"
: "latin1"), p_enc);
if (vc.vc_type == CONV_NONE)
/* No conversion needed. */
cp = IObuff;
else
{
/* Do the conversion. If it fails
* use the unconverted text. */
cp = string_convert(&vc, IObuff,
NULL);
if (cp == NULL)
cp = IObuff;
}
convert_setup(&vc, NULL, NULL);
ml_append(lnum, cp, (colnr_T)0, FALSE);
if (cp != IObuff)
vim_free(cp);
#else
ml_append(lnum, IObuff, (colnr_T)0,
FALSE);
#endif
++lnum;
}
fclose(fd);
}
}
FreeWild(fcount, fnames);
}
}
if (mustfree)
vim_free(rt);
}
break;
}
}
}
}
/*
* ":exusage"
*/
/*ARGSUSED*/
void
ex_exusage(eap)
exarg_T *eap;
{
do_cmdline_cmd((char_u *)"help ex-cmd-index");
}
/*
* ":viusage"
*/
/*ARGSUSED*/
void
ex_viusage(eap)
exarg_T *eap;
{
do_cmdline_cmd((char_u *)"help normal-index");
}
#if defined(FEAT_EX_EXTRA) || defined(PROTO)
static void helptags_one __ARGS((char_u *dir, char_u *ext, char_u *lang));
/*
* ":helptags"
*/
void
ex_helptags(eap)
exarg_T *eap;
{
garray_T ga;
int i, j;
int len;
#ifdef FEAT_MULTI_LANG
char_u lang[2];
#endif
char_u ext[5];
char_u fname[8];
int filecount;
char_u **files;
if (!mch_isdir(eap->arg))
{
EMSG2(_("E150: Not a directory: %s"), eap->arg);
return;
}
#ifdef FEAT_MULTI_LANG
/* Get a list of all files in the directory. */
STRCPY(NameBuff, eap->arg);
add_pathsep(NameBuff);
STRCAT(NameBuff, "*");
if (gen_expand_wildcards(1, &NameBuff, &filecount, &files,
EW_FILE|EW_SILENT) == FAIL
|| filecount == 0)
{
EMSG2("E151: No match: %s", NameBuff);
return;
}
/* Go over all files in the directory to find out what languages are
* present. */
ga_init2(&ga, 1, 10);
for (i = 0; i < filecount; ++i)
{
len = STRLEN(files[i]);
if (len > 4)
{
if (STRICMP(files[i] + len - 4, ".txt") == 0)
{
/* ".txt" -> language "en" */
lang[0] = 'e';
lang[1] = 'n';
}
else if (files[i][len - 4] == '.'
&& ASCII_ISALPHA(files[i][len - 3])
&& ASCII_ISALPHA(files[i][len - 2])
&& TOLOWER_ASC(files[i][len - 1]) == 'x')
{
/* ".abx" -> language "ab" */
lang[0] = TOLOWER_ASC(files[i][len - 3]);
lang[1] = TOLOWER_ASC(files[i][len - 2]);
}
else
continue;
/* Did we find this language already? */
for (j = 0; j < ga.ga_len; j += 2)
if (STRNCMP(lang, ((char_u *)ga.ga_data) + j, 2) == 0)
break;
if (j == ga.ga_len)
{
/* New language, add it. */
if (ga_grow(&ga, 2) == FAIL)
break;
((char_u *)ga.ga_data)[ga.ga_len++] = lang[0];
((char_u *)ga.ga_data)[ga.ga_len++] = lang[1];
}
}
}
/*
* Loop over the found languages to generate a tags file for each one.
*/
for (j = 0; j < ga.ga_len; j += 2)
{
STRCPY(fname, "tags-xx");
fname[5] = ((char_u *)ga.ga_data)[j];
fname[6] = ((char_u *)ga.ga_data)[j + 1];
if (fname[5] == 'e' && fname[6] == 'n')
{
/* English is an exception: use ".txt" and "tags". */
fname[4] = NUL;
STRCPY(ext, ".txt");
}
else
{
/* Language "ab" uses ".abx" and "tags-ab". */
STRCPY(ext, ".xxx");
ext[1] = fname[5];
ext[2] = fname[6];
}
helptags_one(eap->arg, ext, fname);
}
ga_clear(&ga);
FreeWild(filecount, files);
#else
/* No language support, just use "*.txt" and "tags". */
helptags_one(eap->arg, (char_u *)".txt", (char_u *)"tags");
#endif
}
static void
helptags_one(dir, ext, tagfname)
char_u *dir; /* doc directory */
char_u *ext; /* suffix, ".txt", ".itx", ".frx", etc. */
char_u *tagfname; /* "tags" for English, "tags-it" for Italian. */
{
FILE *fd_tags;
FILE *fd;
garray_T ga;
int filecount;
char_u **files;
char_u *p1, *p2;
int fi;
char_u *s;
int i;
char_u *fname;
# ifdef FEAT_MBYTE
int utf8 = MAYBE;
int this_utf8;
int firstline;
int mix = FALSE; /* detected mixed encodings */
# endif
/*
* Find all *.txt files.
*/
STRCPY(NameBuff, dir);
add_pathsep(NameBuff);
STRCAT(NameBuff, "*");
STRCAT(NameBuff, ext);
if (gen_expand_wildcards(1, &NameBuff, &filecount, &files,
EW_FILE|EW_SILENT) == FAIL
|| filecount == 0)
{
if (!got_int)
EMSG2("E151: No match: %s", NameBuff);
return;
}
/*
* Open the tags file for writing.
* Do this before scanning through all the files.
*/
STRCPY(NameBuff, dir);
add_pathsep(NameBuff);
STRCAT(NameBuff, tagfname);
fd_tags = fopen((char *)NameBuff, "w");
if (fd_tags == NULL)
{
EMSG2(_("E152: Cannot open %s for writing"), NameBuff);
FreeWild(filecount, files);
return;
}
/*
* If generating tags for "$VIMRUNTIME/doc" add the "help-tags" tag.
*/
ga_init2(&ga, (int)sizeof(char_u *), 100);
if (fullpathcmp((char_u *)"$VIMRUNTIME/doc", dir, FALSE) == FPC_SAME)
{
if (ga_grow(&ga, 1) == FAIL)
got_int = TRUE;
else
{
s = alloc(30);
if (s == NULL)
got_int = TRUE;
else
{
sprintf((char *)s, "help-tags\t%s\t1\n", tagfname);
((char_u **)ga.ga_data)[ga.ga_len] = s;
++ga.ga_len;
}
}
}
/*
* Go over all the files and extract the tags.
*/
for (fi = 0; fi < filecount && !got_int; ++fi)
{
fd = fopen((char *)files[fi], "r");
if (fd == NULL)
{
EMSG2(_("E153: Unable to open %s for reading"), files[fi]);
continue;
}
fname = gettail(files[fi]);
# ifdef FEAT_MBYTE
firstline = TRUE;
# endif
while (!vim_fgets(IObuff, IOSIZE, fd) && !got_int)
{
# ifdef FEAT_MBYTE
if (firstline)
{
/* Detect utf-8 file by a non-ASCII char in the first line. */
this_utf8 = MAYBE;
for (s = IObuff; *s != NUL; ++s)
if (*s >= 0x80)
{
int l;
this_utf8 = TRUE;
l = utf_ptr2len_check(s);
if (l == 1)
{
/* Illegal UTF-8 byte sequence. */
this_utf8 = FALSE;
break;
}
s += l - 1;
}
if (this_utf8 == MAYBE) /* only ASCII characters found */
this_utf8 = FALSE;
if (utf8 == MAYBE) /* first file */
utf8 = this_utf8;
else if (utf8 != this_utf8)
{
EMSG2(_("E670: Mix of help file encodings within a language: %s"), files[fi]);
mix = !got_int;
got_int = TRUE;
}
firstline = FALSE;
}
# endif
p1 = vim_strchr(IObuff, '*'); /* find first '*' */
while (p1 != NULL)
{
p2 = vim_strchr(p1 + 1, '*'); /* find second '*' */
if (p2 != NULL && p2 > p1 + 1) /* skip "*" and "**" */
{
for (s = p1 + 1; s < p2; ++s)
if (*s == ' ' || *s == '\t' || *s == '|')
break;
/*
* Only accept a *tag* when it consists of valid
* characters, there is white space before it and is
* followed by a white character or end-of-line.
*/
if (s == p2
&& (p1 == IObuff || p1[-1] == ' ' || p1[-1] == '\t')
&& (vim_strchr((char_u *)" \t\n\r", s[1]) != NULL
|| s[1] == '\0'))
{
*p2 = '\0';
++p1;
if (ga_grow(&ga, 1) == FAIL)
{
got_int = TRUE;
break;
}
s = alloc((unsigned)(p2 - p1 + STRLEN(fname) + 2));
if (s == NULL)
{
got_int = TRUE;
break;
}
((char_u **)ga.ga_data)[ga.ga_len] = s;
++ga.ga_len;
sprintf((char *)s, "%s\t%s", p1, fname);
/* find next '*' */
p2 = vim_strchr(p2 + 1, '*');
}
}
p1 = p2;
}
line_breakcheck();
}
fclose(fd);
}
FreeWild(filecount, files);
if (!got_int)
{
/*
* Sort the tags.
*/
sort_strings((char_u **)ga.ga_data, ga.ga_len);
/*
* Check for duplicates.
*/
for (i = 1; i < ga.ga_len; ++i)
{
p1 = ((char_u **)ga.ga_data)[i - 1];
p2 = ((char_u **)ga.ga_data)[i];
while (*p1 == *p2)
{
if (*p2 == '\t')
{
*p2 = NUL;
sprintf((char *)NameBuff,
_("E154: Duplicate tag \"%s\" in file %s/%s"),
((char_u **)ga.ga_data)[i], dir, p2 + 1);
EMSG(NameBuff);
*p2 = '\t';
break;
}
++p1;
++p2;
}
}
# ifdef FEAT_MBYTE
if (utf8 == TRUE)
fprintf(fd_tags, "!_TAG_FILE_ENCODING\tutf-8\t//\n");
# endif
/*
* Write the tags into the file.
*/
for (i = 0; i < ga.ga_len; ++i)
{
s = ((char_u **)ga.ga_data)[i];
if (STRNCMP(s, "help-tags", 9) == 0)
/* help-tags entry was added in formatted form */
fprintf(fd_tags, (char *)s);
else
{
fprintf(fd_tags, "%s\t/*", s);
for (p1 = s; *p1 != '\t'; ++p1)
{
/* insert backslash before '\\' and '/' */
if (*p1 == '\\' || *p1 == '/')
putc('\\', fd_tags);
putc(*p1, fd_tags);
}
fprintf(fd_tags, "*\n");
}
}
}
#ifdef FEAT_MBYTE
if (mix)
got_int = FALSE; /* continue with other languages */
#endif
for (i = 0; i < ga.ga_len; ++i)
vim_free(((char_u **)ga.ga_data)[i]);
ga_clear(&ga);
fclose(fd_tags); /* there is no check for an error... */
}
#endif
#if defined(FEAT_SIGNS) || defined(PROTO)
/*
* Struct to hold the sign properties.
*/
typedef struct sign sign_T;
struct sign
{
sign_T *sn_next; /* next sign in list */
int sn_typenr; /* type number of sign (negative if not equal
to name) */
char_u *sn_name; /* name of sign */
char_u *sn_icon; /* name of pixmap */
#ifdef FEAT_SIGN_ICONS
void *sn_image; /* icon image */
#endif
char_u *sn_text; /* text used instead of pixmap */
int sn_line_hl; /* highlight ID for line */
int sn_text_hl; /* highlight ID for text */
};
#define MAX_TYPENR 255 /* depends on sattr_T */
static sign_T *first_sign = NULL;
static int last_sign_typenr = MAX_TYPENR; /* is decremented */
static void sign_list_defined __ARGS((sign_T *sp));
/*
* ":sign" command
*/
void
ex_sign(eap)
exarg_T *eap;
{
char_u *arg = eap->arg;
char_u *p;
int idx;
sign_T *sp;
sign_T *sp_prev;
buf_T *buf;
static char *cmds[] = {
"define",
#define SIGNCMD_DEFINE 0
"undefine",
#define SIGNCMD_UNDEFINE 1
"list",
#define SIGNCMD_LIST 2
"place",
#define SIGNCMD_PLACE 3
"unplace",
#define SIGNCMD_UNPLACE 4
"jump",
#define SIGNCMD_JUMP 5
#define SIGNCMD_LAST 6
};
/* Parse the subcommand. */
p = skiptowhite(arg);
if (*p != NUL)
*p++ = NUL;
for (idx = 0; ; ++idx)
{
if (idx == SIGNCMD_LAST)
{
EMSG2(_("E160: Unknown sign command: %s"), arg);
return;
}
if (STRCMP(arg, cmds[idx]) == 0)
break;
}
arg = skipwhite(p);
if (idx <= SIGNCMD_LIST)
{
/*
* Define, undefine or list signs.
*/
if (idx == SIGNCMD_LIST && *arg == NUL)
{
/* ":sign list": list all defined signs */
for (sp = first_sign; sp != NULL; sp = sp->sn_next)
sign_list_defined(sp);
}
else if (*arg == NUL)
EMSG(_("E156: Missing sign name"));
else
{
p = skiptowhite(arg);
if (*p != NUL)
*p++ = NUL;
sp_prev = NULL;
for (sp = first_sign; sp != NULL; sp = sp->sn_next)
{
if (STRCMP(sp->sn_name, arg) == 0)
break;
sp_prev = sp;
}
if (idx == SIGNCMD_DEFINE)
{
/* ":sign define {name} ...": define a sign */
if (sp == NULL)
{
/* Allocate a new sign. */
sp = (sign_T *)alloc_clear((unsigned)sizeof(sign_T));
if (sp == NULL)
return;
if (sp_prev == NULL)
first_sign = sp;
else
sp_prev->sn_next = sp;
sp->sn_name = vim_strnsave(arg, (int)(p - arg));
/* If the name is a number use that for the typenr,
* otherwise use a negative number. */
if (VIM_ISDIGIT(*arg))
sp->sn_typenr = atoi((char *)arg);
else
{
sign_T *lp;
int start = last_sign_typenr;
for (lp = first_sign; lp != NULL; lp = lp->sn_next)
{
if (lp->sn_typenr == last_sign_typenr)
{
--last_sign_typenr;
if (last_sign_typenr == 0)
last_sign_typenr = MAX_TYPENR;
if (last_sign_typenr == start)
{
EMSG(_("E612: Too many signs defined"));
return;
}
lp = first_sign;
continue;
}
}
sp->sn_typenr = last_sign_typenr--;
if (last_sign_typenr == 0)
last_sign_typenr = MAX_TYPENR; /* wrap around */
}
}
/* set values for a defined sign. */
for (;;)
{
arg = skipwhite(p);
if (*arg == NUL)
break;
p = skiptowhite_esc(arg);
if (STRNCMP(arg, "icon=", 5) == 0)
{
arg += 5;
vim_free(sp->sn_icon);
sp->sn_icon = vim_strnsave(arg, (int)(p - arg));
backslash_halve(sp->sn_icon);
#ifdef FEAT_SIGN_ICONS
if (gui.in_use)
{
out_flush();
if (sp->sn_image != NULL)
gui_mch_destroy_sign(sp->sn_image);
sp->sn_image = gui_mch_register_sign(sp->sn_icon);
}
#endif
}
else if (STRNCMP(arg, "text=", 5) == 0)
{
char_u *s;
int cells;
int len;
arg += 5;
#ifdef FEAT_MBYTE
/* Count cells and check for non-printable chars */
if (has_mbyte)
{
cells = 0;
for (s = arg; s < p; s += (*mb_ptr2len_check)(s))
{
if (!vim_isprintc((*mb_ptr2char)(s)))
break;
cells += (*mb_ptr2cells)(s);
}
}
else
#endif
{
for (s = arg; s < p; ++s)
if (!vim_isprintc(*s))
break;
cells = s - arg;
}
/* Currently must be one or two display cells */
if (s != p || cells < 1 || cells > 2)
{
*p = NUL;
EMSG2(_("E239: Invalid sign text: %s"), arg);
return;
}
vim_free(sp->sn_text);
/* Allocate one byte more if we need to pad up
* with a space. */
len = p - arg + ((cells == 1) ? 1 : 0);
sp->sn_text = vim_strnsave(arg, len);
if (sp->sn_text != NULL && cells == 1)
STRCPY(sp->sn_text + len - 1, " ");
}
else if (STRNCMP(arg, "linehl=", 7) == 0)
{
arg += 7;
sp->sn_line_hl = syn_check_group(arg, (int)(p - arg));
}
else if (STRNCMP(arg, "texthl=", 7) == 0)
{
arg += 7;
sp->sn_text_hl = syn_check_group(arg, (int)(p - arg));
}
else
{
EMSG2(_(e_invarg2), arg);
return;
}
}
}
else if (sp == NULL)
EMSG2(_("E155: Unknown sign: %s"), arg);
else if (idx == SIGNCMD_LIST)
/* ":sign list {name}" */
sign_list_defined(sp);
else
{
/* ":sign undefine {name}" */
vim_free(sp->sn_name);
vim_free(sp->sn_icon);
#ifdef FEAT_SIGN_ICONS
if (sp->sn_image != NULL)
{
out_flush();
gui_mch_destroy_sign(sp->sn_image);
}
#endif
vim_free(sp->sn_text);
if (sp_prev == NULL)
first_sign = sp->sn_next;
else
sp_prev->sn_next = sp->sn_next;
vim_free(sp);
}
}
}
else
{
int id = -1;
linenr_T lnum = -1;
char_u *sign_name = NULL;
char_u *arg1;
if (*arg == NUL)
{
if (idx == SIGNCMD_PLACE)
{
/* ":sign place": list placed signs in all buffers */
sign_list_placed(NULL);
}
else if (idx == SIGNCMD_UNPLACE)
{
/* ":sign unplace": remove placed sign at cursor */
id = buf_findsign_id(curwin->w_buffer, curwin->w_cursor.lnum);
if (id > 0)
{
buf_delsign(curwin->w_buffer, id);
update_debug_sign(curwin->w_buffer, curwin->w_cursor.lnum);
}
else
EMSG(_("E159: Missing sign number"));
}
else
EMSG(_(e_argreq));
return;
}
if (idx == SIGNCMD_UNPLACE && arg[0] == '*' && arg[1] == NUL)
{
/* ":sign unplace *": remove all placed signs */
buf_delete_all_signs();
return;
}
/* first arg could be placed sign id */
arg1 = arg;
if (VIM_ISDIGIT(*arg))
{
id = getdigits(&arg);
if (!vim_iswhite(*arg) && *arg != NUL)
{
id = -1;
arg = arg1;
}
else
{
arg = skipwhite(arg);
if (idx == SIGNCMD_UNPLACE && *arg == NUL)
{
/* ":sign unplace {id}": remove placed sign by number */
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
if ((lnum = buf_delsign(buf, id)) != 0)
update_debug_sign(buf, lnum);
return;
}
}
}
/*
* Check for line={lnum} name={name} and file={fname} or buffer={nr}.
* Leave "arg" pointing to {fname}.
*/
for (;;)
{
if (STRNCMP(arg, "line=", 5) == 0)
{
arg += 5;
lnum = atoi((char *)arg);
arg = skiptowhite(arg);
}
else if (STRNCMP(arg, "name=", 5) == 0)
{
arg += 5;
sign_name = arg;
arg = skiptowhite(arg);
if (*arg != NUL)
*arg++ = NUL;
}
else if (STRNCMP(arg, "file=", 5) == 0)
{
arg += 5;
buf = buflist_findname(arg);
break;
}
else if (STRNCMP(arg, "buffer=", 7) == 0)
{
arg += 7;
buf = buflist_findnr((int)getdigits(&arg));
if (*skipwhite(arg) != NUL)
EMSG(_(e_trailing));
break;
}
else
{
EMSG(_(e_invarg));
return;
}
arg = skipwhite(arg);
}
if (buf == NULL)
{
EMSG2(_("E158: Invalid buffer name: %s"), arg);
}
else if (id <= 0)
{
if (lnum >= 0 || sign_name != NULL)
EMSG(_(e_invarg));
else
/* ":sign place file={fname}": list placed signs in one file */
sign_list_placed(buf);
}
else if (idx == SIGNCMD_JUMP)
{
/* ":sign jump {id} file={fname}" */
if (lnum >= 0 || sign_name != NULL)
EMSG(_(e_invarg));
else if ((lnum = buf_findsign(buf, id)) > 0)
{ /* goto a sign ... */
if (buf_jump_open_win(buf) != NULL)
{ /* ... in a current window */
curwin->w_cursor.lnum = lnum;
check_cursor_lnum();
beginline(BL_WHITE);
}
else
{ /* ... not currently in a window */
char_u *cmd;
cmd = alloc((unsigned)STRLEN(buf->b_fname) + 25);
if (cmd == NULL)
return;
sprintf((char *)cmd, "e +%ld %s", (long)lnum, buf->b_fname);
do_cmdline_cmd(cmd);
vim_free(cmd);
}
#ifdef FEAT_FOLDING
foldOpenCursor();
#endif
}
else
EMSGN(_("E157: Invalid sign ID: %ld"), id);
}
else if (idx == SIGNCMD_UNPLACE)
{
/* ":sign unplace {id} file={fname}" */
if (lnum >= 0 || sign_name != NULL)
EMSG(_(e_invarg));
else
{
lnum = buf_delsign(buf, id);
update_debug_sign(buf, lnum);
}
}
/* idx == SIGNCMD_PLACE */
else if (sign_name != NULL)
{
for (sp = first_sign; sp != NULL; sp = sp->sn_next)
if (STRCMP(sp->sn_name, sign_name) == 0)
break;
if (sp == NULL)
{
EMSG2(_("E155: Unknown sign: %s"), sign_name);
return;
}
if (lnum > 0)
/* ":sign place {id} line={lnum} name={name} file={fname}":
* place a sign */
buf_addsign(buf, id, lnum, sp->sn_typenr);
else
/* ":sign place {id} file={fname}": change sign type */
lnum = buf_change_sign_type(buf, id, sp->sn_typenr);
update_debug_sign(buf, lnum);
}
else
EMSG(_(e_invarg));
}
}
#if defined(FEAT_SIGN_ICONS) || defined(PROTO)
/*
* Allocate the icons. Called when the GUI has started. Allows defining
* signs before it starts.
*/
void
sign_gui_started()
{
sign_T *sp;
for (sp = first_sign; sp != NULL; sp = sp->sn_next)
if (sp->sn_icon != NULL)
sp->sn_image = gui_mch_register_sign(sp->sn_icon);
}
#endif
/*
* List one sign.
*/
static void
sign_list_defined(sp)
sign_T *sp;
{
char_u *p;
smsg((char_u *)"sign %s", sp->sn_name);
if (sp->sn_icon != NULL)
{
MSG_PUTS(" icon=");
msg_outtrans(sp->sn_icon);
#ifdef FEAT_SIGN_ICONS
if (sp->sn_image == NULL)
MSG_PUTS(_(" (NOT FOUND)"));
#else
MSG_PUTS(_(" (not supported)"));
#endif
}
if (sp->sn_text != NULL)
{
MSG_PUTS(" text=");
msg_outtrans(sp->sn_text);
}
if (sp->sn_line_hl > 0)
{
MSG_PUTS(" linehl=");
p = get_highlight_name(NULL, sp->sn_line_hl - 1);
if (p == NULL)
MSG_PUTS("NONE");
else
msg_puts(p);
}
if (sp->sn_text_hl > 0)
{
MSG_PUTS(" texthl=");
p = get_highlight_name(NULL, sp->sn_text_hl - 1);
if (p == NULL)
MSG_PUTS("NONE");
else
msg_puts(p);
}
}
/*
* Get highlighting attribute for sign "typenr".
* If "line" is TRUE: line highl, if FALSE: text highl.
*/
int
sign_get_attr(typenr, line)
int typenr;
int line;
{
sign_T *sp;
for (sp = first_sign; sp != NULL; sp = sp->sn_next)
if (sp->sn_typenr == typenr)
{
if (line)
{
if (sp->sn_line_hl > 0)
return syn_id2attr(sp->sn_line_hl);
}
else
{
if (sp->sn_text_hl > 0)
return syn_id2attr(sp->sn_text_hl);
}
break;
}
return 0;
}
/*
* Get text mark for sign "typenr".
* Returns NULL if there isn't one.
*/
char_u *
sign_get_text(typenr)
int typenr;
{
sign_T *sp;
for (sp = first_sign; sp != NULL; sp = sp->sn_next)
if (sp->sn_typenr == typenr)
return sp->sn_text;
return NULL;
}
#if defined(FEAT_SIGN_ICONS) || defined(PROTO)
void *
sign_get_image(typenr)
int typenr; /* the attribute which may have a sign */
{
sign_T *sp;
for (sp = first_sign; sp != NULL; sp = sp->sn_next)
if (sp->sn_typenr == typenr)
return sp->sn_image;
return NULL;
}
#endif
/*
* Get the name of a sign by its typenr.
*/
char_u *
sign_typenr2name(typenr)
int typenr;
{
sign_T *sp;
for (sp = first_sign; sp != NULL; sp = sp->sn_next)
if (sp->sn_typenr == typenr)
return sp->sn_name;
return (char_u *)_("[Deleted]");
}
#endif
#if defined(FEAT_GUI) || defined(FEAT_CLIENTSERVER) || defined(PROTO)
/*
* ":drop"
* Opens the first argument in a window. When there are two or more arguments
* the argument list is redefined.
*/
void
ex_drop(eap)
exarg_T *eap;
{
int split = FALSE;
int incurwin = FALSE;
char_u *arg;
char_u *first = NULL;
win_T *wp;
buf_T *buf;
/*
* Check if the first argument is already being edited in a window. If
* so, jump to that window.
* We would actually need to check all arguments, but that's complicated
* and mostly only one file is dropped.
* This also ignores wildcards, since it is very unlikely the user is
* editing a file name with a wildcard character.
*/
arg = vim_strsave(eap->arg);
if (arg != NULL)
{
/* Get the first argument, remove quotes, make it a full path. */
first = fix_fname(arg);
if (first != NULL)
{
buf = buflist_findname(first);
FOR_ALL_WINDOWS(wp)
{
if (wp->w_buffer == buf)
{
incurwin = TRUE;
# ifdef FEAT_WINDOWS
win_enter(wp, TRUE);
break;
# endif
}
}
vim_free(first);
if (incurwin)
{
/* Already editing the file. Redefine the argument list. */
set_arglist(eap->arg);
curwin->w_arg_idx = 0;
vim_free(arg);
return;
}
}
vim_free(arg);
}
/*
* Check whether the current buffer is changed. If so, we will need
* to split the current window or data could be lost.
* Skip the check if the 'hidden' option is set, as in this case the
* buffer won't be lost.
*/
if (!P_HID(curbuf))
{
# ifdef FEAT_WINDOWS
++emsg_off;
# endif
split = check_changed(curbuf, TRUE, FALSE, FALSE, FALSE);
# ifdef FEAT_WINDOWS
--emsg_off;
# else
if (split)
return;
# endif
}
/* Fake a ":snext" or ":next" command, redefine the arglist. */
if (split)
{
eap->cmdidx = CMD_snext;
eap->cmd[0] = 's';
}
else
eap->cmdidx = CMD_next;
ex_next(eap);
}
#endif
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