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vim/src/ex_cmds.c
Christian Brabandt 26c11c5688
patch 9.0.2121: [security]: use-after-free in ex_substitute 
Problem:  [security]: use-after-free in ex_substitute
Solution: always allocate memory

closes: #13552

A recursive :substitute command could cause a heap-use-after free in Vim
(CVE-2023-48706).

The whole reproducible test is a bit tricky, I can only reproduce this
reliably when no previous substitution command has been used yet
(which is the reason, the test needs to run as first one in the
test_substitute.vim file) and as a combination of the `:~` command
together with a :s command that contains the special substitution atom `~\=`
which will make use of a sub-replace special atom and calls a vim script
function.

There was a comment in the existing :s code, that already makes the
`sub` variable allocate memory so that a recursive :s call won't be able
to cause any issues here, so this was known as a potential problem
already.  But for the current test-case that one does not work, because
the substitution does not start with `\=` but with `~\=` (and since
there does not yet exist a previous substitution atom, Vim will simply
increment the `sub` pointer (which then was not allocated dynamically)
and later one happily use a sub-replace special expression (which could
then free the `sub` var).

The following commit fixes this, by making the sub var always using
allocated memory, which also means we need to free the pointer whenever
we leave the function. Since sub is now always an allocated variable,
we also do no longer need the sub_copy variable anymore, since this one
was used to indicated when sub pointed to allocated memory (and had
therefore to be freed on exit) and when not.

Github Security Advisory:
https://github.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53q

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-22 21:52:45 +01:00

5659 lines
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/* vi:set ts=8 sts=4 sw=4 noet:
*
* 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"
#include <float.h>
static int linelen(int *has_tab);
static void do_filter(linenr_T line1, linenr_T line2, exarg_T *eap, char_u *cmd, int do_in, int do_out);
static int not_writing(void);
static int check_readonly(int *forceit, buf_T *buf);
static void delbuf_msg(char_u *name);
/*
* ":ascii" and "ga".
*/
void
do_ascii(exarg_T *eap UNUSED)
{
int c;
int cval;
char buf1[20];
char buf2[20];
char_u buf3[7];
#ifdef FEAT_DIGRAPHS
char_u *dig;
#endif
int cc[MAX_MCO];
int ci = 0;
int len;
if (enc_utf8)
c = utfc_ptr2char(ml_get_cursor(), cc);
else
c = gchar_cursor();
if (c == NUL)
{
msg("NUL");
return;
}
IObuff[0] = NUL;
if (!has_mbyte || (enc_dbcs != 0 && c < 0x100) || c < 0x80)
{
if (c == NL) // NUL is stored as NL
c = NUL;
if (c == CAR && get_fileformat(curbuf) == EOL_MAC)
cval = NL; // NL is stored as CR
else
cval = c;
if (vim_isprintc_strict(c) && (c < ' ' || c > '~'))
{
transchar_nonprint(curbuf, buf3, c);
vim_snprintf(buf1, sizeof(buf1), " <%s>", (char *)buf3);
}
else
buf1[0] = NUL;
if (c >= 0x80)
vim_snprintf(buf2, sizeof(buf2), " <M-%s>",
(char *)transchar(c & 0x7f));
else
buf2[0] = NUL;
#ifdef FEAT_DIGRAPHS
dig = get_digraph_for_char(cval);
if (dig != NULL)
vim_snprintf((char *)IObuff, IOSIZE,
_("<%s>%s%s %d, Hex %02x, Oct %03o, Digr %s"),
transchar(c), buf1, buf2, cval, cval, cval, dig);
else
#endif
vim_snprintf((char *)IObuff, IOSIZE,
_("<%s>%s%s %d, Hex %02x, Octal %03o"),
transchar(c), buf1, buf2, cval, cval, cval);
if (enc_utf8)
c = cc[ci++];
else
c = 0;
}
// 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 (enc_utf8 && utf_iscomposing(c)
#ifdef USE_GUI
&& !gui.in_use
#endif
)
IObuff[len++] = ' '; // draw composing char on top of a space
len += (*mb_char2bytes)(c, IObuff + len);
#ifdef FEAT_DIGRAPHS
dig = get_digraph_for_char(c);
if (dig != NULL)
vim_snprintf((char *)IObuff + len, IOSIZE - len,
c < 0x10000 ? _("> %d, Hex %04x, Oct %o, Digr %s")
: _("> %d, Hex %08x, Oct %o, Digr %s"),
c, c, c, dig);
else
#endif
vim_snprintf((char *)IObuff + len, IOSIZE - len,
c < 0x10000 ? _("> %d, Hex %04x, Octal %o")
: _("> %d, Hex %08x, Octal %o"),
c, c, c);
if (ci == MAX_MCO)
break;
if (enc_utf8)
c = cc[ci++];
else
c = 0;
}
msg((char *)IObuff);
}
/*
* ":left", ":center" and ":right": align text.
*/
void
ex_align(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 = curwin->w_width - 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
{
has_tab = FALSE; // avoid uninit warnings
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(int *has_tab)
{
char_u *line;
char_u *first;
char_u *last;
int save;
int len;
// Get the line. If it's empty bail out early (could be the empty string
// for an unloaded buffer).
line = ml_get_curline();
if (*line == NUL)
return 0;
// find the first non-blank character
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_str(line); // get line length on screen
if (has_tab != NULL) // check for embedded TAB
*has_tab = (vim_strchr(first, TAB) != NULL);
*last = save;
return len;
}
// Buffer for two lines used during sorting. They are allocated to
// contain the longest line being sorted.
static char_u *sortbuf1;
static char_u *sortbuf2;
static int sort_lc; // sort using locale
static int sort_ic; // ignore case
static int sort_nr; // sort on number
static int sort_rx; // sort on regex instead of skipping it
static int sort_flt; // sort on floating number
static int sort_abort; // flag to indicate if sorting has been interrupted
// Struct to store info to be sorted.
typedef struct
{
linenr_T lnum; // line number
union {
struct
{
varnumber_T start_col_nr; // starting column number
varnumber_T end_col_nr; // ending column number
} line;
struct
{
varnumber_T value; // value if sorting by integer
int is_number; // TRUE when line contains a number
} num;
float_T value_flt; // value if sorting by float
} st_u;
} sorti_T;
static int
string_compare(const void *s1, const void *s2)
{
if (sort_lc)
return strcoll((char *)s1, (char *)s2);
return sort_ic ? STRICMP(s1, s2) : STRCMP(s1, s2);
}
static int
sort_compare(const void *s1, const void *s2)
{
sorti_T l1 = *(sorti_T *)s1;
sorti_T l2 = *(sorti_T *)s2;
int result = 0;
// If the user interrupts, there's no way to stop qsort() immediately, but
// if we return 0 every time, qsort will assume it's done sorting and
// exit.
if (sort_abort)
return 0;
fast_breakcheck();
if (got_int)
sort_abort = TRUE;
if (sort_nr)
{
if (l1.st_u.num.is_number != l2.st_u.num.is_number)
result = l1.st_u.num.is_number - l2.st_u.num.is_number;
else
result = l1.st_u.num.value == l2.st_u.num.value ? 0
: l1.st_u.num.value > l2.st_u.num.value ? 1 : -1;
}
else if (sort_flt)
result = l1.st_u.value_flt == l2.st_u.value_flt ? 0
: l1.st_u.value_flt > l2.st_u.value_flt ? 1 : -1;
else
{
// We need to copy one line into "sortbuf1", because there is no
// guarantee that the first pointer becomes invalid when obtaining the
// second one.
STRNCPY(sortbuf1, ml_get(l1.lnum) + l1.st_u.line.start_col_nr,
l1.st_u.line.end_col_nr - l1.st_u.line.start_col_nr + 1);
sortbuf1[l1.st_u.line.end_col_nr - l1.st_u.line.start_col_nr] = 0;
STRNCPY(sortbuf2, ml_get(l2.lnum) + l2.st_u.line.start_col_nr,
l2.st_u.line.end_col_nr - l2.st_u.line.start_col_nr + 1);
sortbuf2[l2.st_u.line.end_col_nr - l2.st_u.line.start_col_nr] = 0;
result = string_compare(sortbuf1, sortbuf2);
}
// If two lines have the same value, preserve the original line order.
if (result == 0)
return (int)(l1.lnum - l2.lnum);
return result;
}
/*
* ":sort".
*/
void
ex_sort(exarg_T *eap)
{
regmatch_T regmatch;
int len;
linenr_T lnum;
long maxlen = 0;
sorti_T *nrs;
size_t count = (size_t)(eap->line2 - eap->line1 + 1);
size_t i;
char_u *p;
char_u *s;
char_u *s2;
char_u c; // temporary character storage
int unique = FALSE;
long deleted;
colnr_T start_col;
colnr_T end_col;
int sort_what = 0;
int format_found = 0;
int change_occurred = FALSE; // Buffer contents changed.
// Sorting one line is really quick!
if (count <= 1)
return;
if (u_save((linenr_T)(eap->line1 - 1), (linenr_T)(eap->line2 + 1)) == FAIL)
return;
sortbuf1 = NULL;
sortbuf2 = NULL;
regmatch.regprog = NULL;
nrs = ALLOC_MULT(sorti_T, count);
if (nrs == NULL)
goto sortend;
sort_abort = sort_ic = sort_lc = sort_rx = sort_nr = 0;
sort_flt = 0;
for (p = eap->arg; *p != NUL; ++p)
{
if (VIM_ISWHITE(*p))
;
else if (*p == 'i')
sort_ic = TRUE;
else if (*p == 'l')
sort_lc = TRUE;
else if (*p == 'r')
sort_rx = TRUE;
else if (*p == 'n')
{
sort_nr = 1;
++format_found;
}
else if (*p == 'f')
{
sort_flt = 1;
++format_found;
}
else if (*p == 'b')
{
sort_what = STR2NR_BIN + STR2NR_FORCE;
++format_found;
}
else if (*p == 'o')
{
sort_what = STR2NR_OCT + STR2NR_FORCE;
++format_found;
}
else if (*p == 'x')
{
sort_what = STR2NR_HEX + STR2NR_FORCE;
++format_found;
}
else if (*p == 'u')
unique = TRUE;
else if (*p == '"') // comment start
break;
else if (eap->nextcmd == NULL && check_nextcmd(p) != NULL)
{
eap->nextcmd = check_nextcmd(p);
break;
}
else if (!ASCII_ISALPHA(*p) && regmatch.regprog == NULL)
{
s = skip_regexp_err(p + 1, *p, TRUE);
if (s == NULL)
goto sortend;
*s = NUL;
// Use last search pattern if sort pattern is empty.
if (s == p + 1)
{
if (last_search_pat() == NULL)
{
emsg(_(e_no_previous_regular_expression));
goto sortend;
}
regmatch.regprog = vim_regcomp(last_search_pat(), RE_MAGIC);
}
else
regmatch.regprog = vim_regcomp(p + 1, RE_MAGIC);
if (regmatch.regprog == NULL)
goto sortend;
p = s; // continue after the regexp
regmatch.rm_ic = p_ic;
}
else
{
semsg(_(e_invalid_argument_str), p);
goto sortend;
}
}
// Can only have one of 'n', 'b', 'o' and 'x'.
if (format_found > 1)
{
emsg(_(e_invalid_argument));
goto sortend;
}
// From here on "sort_nr" is used as a flag for any integer number
// sorting.
sort_nr += sort_what;
/*
* Make an array with all line numbers. This avoids having to copy all
* the lines into allocated memory.
* When sorting on strings "start_col_nr" is the offset in the line, for
* numbers sorting it's the number to sort on. This means the pattern
* matching and number conversion only has to be done once per line.
* Also get the longest line length for allocating "sortbuf".
*/
for (lnum = eap->line1; lnum <= eap->line2; ++lnum)
{
s = ml_get(lnum);
len = (int)STRLEN(s);
if (maxlen < len)
maxlen = len;
start_col = 0;
end_col = len;
if (regmatch.regprog != NULL && vim_regexec(&regmatch, s, 0))
{
if (sort_rx)
{
start_col = (colnr_T)(regmatch.startp[0] - s);
end_col = (colnr_T)(regmatch.endp[0] - s);
}
else
start_col = (colnr_T)(regmatch.endp[0] - s);
}
else
if (regmatch.regprog != NULL)
end_col = 0;
if (sort_nr || sort_flt)
{
// Make sure vim_str2nr() doesn't read any digits past the end
// of the match, by temporarily terminating the string there
s2 = s + end_col;
c = *s2;
*s2 = NUL;
// Sorting on number: Store the number itself.
p = s + start_col;
if (sort_nr)
{
if (sort_what & STR2NR_HEX)
s = skiptohex(p);
else if (sort_what & STR2NR_BIN)
s = skiptobin(p);
else
s = skiptodigit(p);
if (s > p && s[-1] == '-')
--s; // include preceding negative sign
if (*s == NUL)
{
// line without number should sort before any number
nrs[lnum - eap->line1].st_u.num.is_number = FALSE;
nrs[lnum - eap->line1].st_u.num.value = 0;
}
else
{
nrs[lnum - eap->line1].st_u.num.is_number = TRUE;
vim_str2nr(s, NULL, NULL, sort_what,
&nrs[lnum - eap->line1].st_u.num.value,
NULL, 0, FALSE, NULL);
}
}
else
{
s = skipwhite(p);
if (*s == '+')
s = skipwhite(s + 1);
if (*s == NUL)
// empty line should sort before any number
nrs[lnum - eap->line1].st_u.value_flt = -DBL_MAX;
else
nrs[lnum - eap->line1].st_u.value_flt =
strtod((char *)s, NULL);
}
*s2 = c;
}
else
{
// Store the column to sort at.
nrs[lnum - eap->line1].st_u.line.start_col_nr = start_col;
nrs[lnum - eap->line1].st_u.line.end_col_nr = end_col;
}
nrs[lnum - eap->line1].lnum = lnum;
if (regmatch.regprog != NULL)
fast_breakcheck();
if (got_int)
goto sortend;
}
// Allocate a buffer that can hold the longest line.
sortbuf1 = alloc(maxlen + 1);
if (sortbuf1 == NULL)
goto sortend;
sortbuf2 = alloc(maxlen + 1);
if (sortbuf2 == NULL)
goto sortend;
// Sort the array of line numbers. Note: can't be interrupted!
qsort((void *)nrs, count, sizeof(sorti_T), sort_compare);
if (sort_abort)
goto sortend;
// Insert the lines in the sorted order below the last one.
lnum = eap->line2;
for (i = 0; i < count; ++i)
{
linenr_T get_lnum = nrs[eap->forceit ? count - i - 1 : i].lnum;
// If the original line number of the line being placed is not the same
// as "lnum" (accounting for offset), we know that the buffer changed.
if (get_lnum + ((linenr_T)count - 1) != lnum)
change_occurred = TRUE;
s = ml_get(get_lnum);
if (!unique || i == 0 || string_compare(s, sortbuf1) != 0)
{
// Copy the line into a buffer, it may become invalid in
// ml_append(). And it's needed for "unique".
STRCPY(sortbuf1, s);
if (ml_append(lnum++, sortbuf1, (colnr_T)0, FALSE) == FAIL)
break;
}
fast_breakcheck();
if (got_int)
goto sortend;
}
// delete the original lines if appending worked
if (i == count)
for (i = 0; i < count; ++i)
ml_delete(eap->line1);
else
count = 0;
// Adjust marks for deleted (or added) lines and prepare for displaying.
deleted = (long)(count - (lnum - eap->line2));
if (deleted > 0)
{
mark_adjust(eap->line2 - deleted, eap->line2, (long)MAXLNUM, -deleted);
msgmore(-deleted);
}
else if (deleted < 0)
mark_adjust(eap->line2, MAXLNUM, -deleted, 0L);
if (change_occurred || deleted != 0)
changed_lines(eap->line1, 0, eap->line2 + 1, -deleted);
curwin->w_cursor.lnum = eap->line1;
beginline(BL_WHITE | BL_FIX);
sortend:
vim_free(nrs);
vim_free(sortbuf1);
vim_free(sortbuf2);
vim_regfree(regmatch.regprog);
if (got_int)
emsg(_(e_interrupted));
}
/*
* :move command - move lines line1-line2 to line dest
*
* return FAIL for failure, OK otherwise
*/
int
do_move(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
#ifdef FEAT_FOLDING
win_T *win;
tabpage_T *tp;
#endif
if (dest >= line1 && dest < line2)
{
emsg(_(e_cannot_move_range_of_lines_into_itself));
return FAIL;
}
// Do nothing if we are not actually moving any lines. This will prevent
// the 'modified' flag from being set without cause.
if (dest == line1 - 1 || dest == line2)
{
// Move the cursor as if lines were moved (see below) to be backwards
// compatible.
if (dest >= line1)
curwin->w_cursor.lnum = dest;
else
curwin->w_cursor.lnum = dest + (line2 - line1) + 1;
return OK;
}
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_nofold(line1, line2, last_line - line2, 0L);
if (dest >= line2)
{
mark_adjust_nofold(line2 + 1, dest, -num_lines, 0L);
#ifdef FEAT_FOLDING
FOR_ALL_TAB_WINDOWS(tp, win)
{
if (win->w_buffer == curbuf)
foldMoveRange(&win->w_folds, line1, line2, dest);
}
#endif
if ((cmdmod.cmod_flags & CMOD_LOCKMARKS) == 0)
{
curbuf->b_op_start.lnum = dest - num_lines + 1;
curbuf->b_op_end.lnum = dest;
}
}
else
{
mark_adjust_nofold(dest + 1, line1 - 1, num_lines, 0L);
#ifdef FEAT_FOLDING
FOR_ALL_TAB_WINDOWS(tp, win)
{
if (win->w_buffer == curbuf)
foldMoveRange(&win->w_folds, dest + 1, line1 - 1, line2);
}
#endif
if ((cmdmod.cmod_flags & CMOD_LOCKMARKS) == 0)
{
curbuf->b_op_start.lnum = dest + 1;
curbuf->b_op_end.lnum = dest + num_lines;
}
}
if ((cmdmod.cmod_flags & CMOD_LOCKMARKS) == 0)
curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
mark_adjust_nofold(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_flags(line1 + extra, ML_DEL_MESSAGE);
if (!global_busy && num_lines > p_report)
smsg(NGETTEXT("%ld line moved", "%ld lines moved", num_lines),
(long)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)
{
dest += num_lines + 1;
last_line = curbuf->b_ml.ml_line_count;
if (dest > last_line + 1)
dest = last_line + 1;
changed_lines(line1, 0, dest, 0L);
}
else
changed_lines(dest + 1, 0, line1 + num_lines, 0L);
return OK;
}
/*
* ":copy"
*/
void
ex_copy(linenr_T line1, linenr_T line2, linenr_T n)
{
linenr_T count;
char_u *p;
count = line2 - line1 + 1;
if ((cmdmod.cmod_flags & CMOD_LOCKMARKS) == 0)
{
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);
if (VIsual_active)
check_pos(curbuf, &VIsual);
msgmore((long)count);
}
static char_u *prevcmd = NULL; // the previous command
#if defined(EXITFREE) || defined(PROTO)
void
free_prev_shellcmd(void)
{
vim_free(prevcmd);
}
#endif
/*
* Check that "prevcmd" is not NULL. If it is NULL then give an error message
* and return FALSE.
*/
static int
prevcmd_is_set(void)
{
if (prevcmd == NULL)
{
emsg(_(e_no_previous_command));
return FALSE;
}
return TRUE;
}
/*
* 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.
*/
void
do_bang(
int addr_count,
exarg_T *eap,
int forceit,
int do_in,
int do_out)
{
char_u *arg = eap->arg; // command
linenr_T line1 = eap->line1; // start of range
linenr_T line2 = eap->line2; // end of range
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;
// Skip leading white space to avoid a strange error with some shells.
trailarg = skipwhite(arg);
do
{
len = (int)STRLEN(trailarg) + 1;
if (newcmd != NULL)
len += (int)STRLEN(newcmd);
if (ins_prevcmd)
{
if (!prevcmd_is_set())
{
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 == '!')
{
if (p > newcmd && p[-1] == '\\')
STRMOVE(p - 1, p);
else
{
trailarg = p;
*trailarg++ = NUL;
ins_prevcmd = TRUE;
break;
}
}
++p;
}
} while (trailarg != NULL);
// Only set "prevcmd" if there is a command to run, otherwise keep te one
// we have.
if (STRLEN(newcmd) > 0)
{
vim_free(prevcmd);
prevcmd = newcmd;
}
else
free_newcmd = TRUE;
if (bangredo) // put cmd in redo buffer for ! command
{
if (!prevcmd_is_set())
goto theend;
// If % or # appears in the command, it must have been escaped.
// Reescape them, so that redoing them does not substitute them by the
// buffername.
char_u *cmd = vim_strsave_escaped(prevcmd, (char_u *)"%#");
if (cmd != NULL)
{
AppendToRedobuffLit(cmd, -1);
vim_free(cmd);
}
else
AppendToRedobuffLit(prevcmd, -1);
AppendToRedobuff((char_u *)"\n");
bangredo = FALSE;
}
/*
* Add quotes around the command, for shells that need them.
*/
if (*p_shq != NUL)
{
if (free_newcmd)
vim_free(newcmd);
newcmd = alloc(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);
apply_autocmds(EVENT_SHELLFILTERPOST, NULL, NULL, FALSE, curbuf);
}
theend:
if (free_newcmd)
vim_free(newcmd);
}
/*
* do_filter: filter lines through a command given by the user
*
* We mostly 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.
* Alternatively, if on Unix and redirecting input or output, but not both,
* and the 'shelltemp' option isn't set, use pipes.
* We use input redirection if do_in is TRUE.
* We use output redirection if do_out is TRUE.
*/
static void
do_filter(
linenr_T line1,
linenr_T line2,
exarg_T *eap, // for forced 'ff' and 'fenc'
char_u *cmd,
int do_in,
int 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;
buf_T *old_curbuf = curbuf;
int shell_flags = 0;
pos_T orig_start = curbuf->b_op_start;
pos_T orig_end = curbuf->b_op_end;
int save_cmod_flags = cmdmod.cmod_flags;
#ifdef FEAT_FILTERPIPE
int stmp = p_stmp;
#endif
if (*cmd == NUL) // no filter command
return;
// Temporarily disable lockmarks since that's needed to propagate changed
// regions of the buffer for foldUpdate(), linecount, etc.
cmdmod.cmod_flags &= ~CMOD_LOCKMARKS;
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();
/*
* When using temp files:
* 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
*
* When writing the input with a pipe or when catching the output with a
* pipe only need to do 3.
*/
if (do_out)
shell_flags |= SHELL_DOOUT;
#ifdef FEAT_FILTERPIPE
# ifdef VIMDLL
if (!gui.in_use && !gui.starting)
stmp = 1; // Console mode doesn't support filterpipe.
# endif
if (!do_in && do_out && !stmp)
{
// Use a pipe to fetch stdout of the command, do not use a temp file.
shell_flags |= SHELL_READ;
curwin->w_cursor.lnum = line2;
}
else if (do_in && !do_out && !stmp)
{
// Use a pipe to write stdin of the command, do not use a temp file.
shell_flags |= SHELL_WRITE;
curbuf->b_op_start.lnum = line1;
curbuf->b_op_end.lnum = line2;
}
else if (do_in && do_out && !stmp)
{
// Use a pipe to write stdin and fetch stdout of the command, do not
// use a temp file.
shell_flags |= SHELL_READ|SHELL_WRITE;
curbuf->b_op_start.lnum = line1;
curbuf->b_op_end.lnum = line2;
curwin->w_cursor.lnum = line2;
}
else
#endif
if ((do_in && (itmp = vim_tempname('i', FALSE)) == NULL)
|| (do_out && (otmp = vim_tempname('o', FALSE)) == NULL))
{
emsg(_(e_cant_get_temp_file_name));
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 (itmp != NULL && 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_EVAL)
if (!aborting())
#endif
// will call wait_return()
(void)semsg(_(e_cant_create_file_str), itmp);
goto filterend;
}
if (curbuf != old_curbuf)
goto filterend;
if (!do_out)
msg_putchar('\n');
// Create the shell command in allocated memory.
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();
if (do_out)
{
if (u_save(line2, (linenr_T)(line2 + 1)) == FAIL)
{
vim_free(cmd_buf);
goto error;
}
redraw_curbuf_later(UPD_VALID);
}
read_linecount = curbuf->b_ml.ml_line_count;
/*
* 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 | shell_flags))
{
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 (otmp != NULL)
{
if (readfile(otmp, NULL, line2, (linenr_T)0, (linenr_T)MAXLNUM,
eap, READ_FILTER) != OK)
{
#if defined(FEAT_EVAL)
if (!aborting())
#endif
{
msg_putchar('\n');
semsg(_(e_cant_read_file_str), otmp);
}
goto error;
}
if (curbuf != old_curbuf)
goto filterend;
}
read_linecount = curbuf->b_ml.ml_line_count - read_linecount;
if (shell_flags & SHELL_READ)
{
curbuf->b_op_start.lnum = line2 + 1;
curbuf->b_op_end.lnum = curwin->w_cursor.lnum;
appended_lines_mark(line2, read_linecount);
}
if (do_in)
{
if ((cmdmod.cmod_flags & CMOD_KEEPMARKS)
|| vim_strchr(p_cpo, CPO_REMMARK) == NULL)
{
if (read_linecount >= linecount)
// move all marks from old lines to new lines
mark_adjust(line1, line2, linecount, 0L);
else if (save_cmod_flags & CMOD_LOCKMARKS)
{
// Move marks from the lines below the new lines down by
// the number of lines lost.
// Move marks from the lines that will be deleted to the
// new lines and below.
mark_adjust(line2 + 1, (linenr_T)MAXLNUM,
linecount - read_linecount, 0L);
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
#ifdef FEAT_FOLDING
foldUpdate(curwin, curbuf->b_op_start.lnum, curbuf->b_op_end.lnum);
#endif
}
else
{
/*
* Put cursor on last new line for ":r !cmd".
*/
linecount = curbuf->b_op_end.lnum - curbuf->b_op_start.lnum + 1;
curwin->w_cursor.lnum = curbuf->b_op_end.lnum;
}
beginline(BL_WHITE | BL_FIX); // cursor on first non-blank
--no_wait_return;
if (linecount > p_report)
{
if (do_in)
{
vim_snprintf(msg_buf, sizeof(msg_buf),
_("%ld lines filtered"), (long)linecount);
if (msg(msg_buf) && !msg_scroll)
// save message to display it after redraw
set_keep_msg((char_u *)msg_buf, 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:
cmdmod.cmod_flags = save_cmod_flags;
if (curbuf != old_curbuf)
{
--no_wait_return;
emsg(_(e_filter_autocommands_must_not_change_current_buffer));
}
else if (cmdmod.cmod_flags & CMOD_LOCKMARKS)
{
curbuf->b_op_start = orig_start;
curbuf->b_op_end = orig_end;
}
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(
char_u *cmd,
int flags) // may be SHELL_DOOUT when output is redirected
{
buf_T *buf;
#if !defined(FEAT_GUI_MSWIN) || defined(VIMDLL)
int save_nwr;
#endif
#ifdef MSWIN
int winstart = FALSE;
#endif
int keep_termcap = !termcap_active;
/*
* 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 ":!start" is used. This implies not stopping termcap mode.
*/
if (cmd != NULL)
keep_termcap = winstart = (STRNICMP(cmd, "start ", 6) == 0);
# if defined(FEAT_GUI) && defined(FEAT_TERMINAL)
// Don't stop termcap mode when using a terminal window for the shell.
if (gui.in_use && vim_strchr(p_go, GO_TERMINAL) != NULL)
keep_termcap = TRUE;
# endif
#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
if (!autocmd_busy)
{
if (!keep_termcap)
stoptermcap();
}
#ifdef MSWIN
if (!winstart)
#endif
msg_putchar('\n'); // may shift screen one line up
// warning message before calling the shell
if (p_warn && !autocmd_busy && msg_silent == 0)
FOR_ALL_BUFFERS(buf)
if (bufIsChangedNotTerm(buf))
{
#ifdef FEAT_GUI_MSWIN
if (!keep_termcap)
starttermcap(); // don't want a message box here
#endif
msg_puts(_("[No write since last change]\n"));
#ifdef FEAT_GUI_MSWIN
if (!keep_termcap)
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;
}
if (autocmd_busy)
{
if (msg_silent == 0)
redraw_later_clear();
}
else
{
/*
* 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().
*/
#if !defined(FEAT_GUI_MSWIN) || defined(VIMDLL)
# ifdef VIMDLL
if (!gui.in_use)
# endif
{
if (cmd == NULL
# ifdef MSWIN
|| (keep_termcap && !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_MSWIN
if (!keep_termcap) // if keep_termcap is TRUE didn't stop termcap
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("\033[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();
apply_autocmds(EVENT_SHELLCMDPOST, NULL, NULL, FALSE, curbuf);
}
#if !defined(UNIX)
static char_u *
find_pipe(char_u *cmd)
{
char_u *p;
int inquote = FALSE;
for (p = cmd; *p != NUL; ++p)
{
if (!inquote && *p == '|')
return p;
if (*p == '"')
inquote = !inquote;
else if (rem_backslash(p))
++p;
}
return NULL;
}
#endif
/*
* 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(
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;
int is_powershell = FALSE;
#ifdef UNIX
int is_fish_shell;
#endif
char_u *shell_name = get_isolated_shell_name();
if (shell_name == NULL)
return NULL;
#if defined(UNIX)
// Account for fish's different syntax for subshells
is_fish_shell = fnamecmp(shell_name, "fish") == 0;
if (is_fish_shell)
len = (long_u)STRLEN(cmd) + 13; // "begin; " + "; end" + NUL
else
#endif
{
is_powershell = (shell_name[0] == 'p')
&& (fnamecmp(shell_name, "powershell") == 0
|| fnamecmp(shell_name, "powershell.exe") == 0
|| fnamecmp(shell_name, "pwsh") == 0
|| fnamecmp(shell_name, "pwsh.exe") == 0);
len = (long_u)STRLEN(cmd) + 3; // "()" + NUL
}
if (itmp != NULL)
{
if (is_powershell)
// "& { Get-Content " + " | & " + " }"
len += (long_u)STRLEN(itmp) + 24;
else
len += (long_u)STRLEN(itmp) + 9; // " { < " + " } "
}
if (otmp != NULL)
len += (long_u)STRLEN(otmp) + (long_u)STRLEN(p_srr) + 2; // " "
vim_free(shell_name);
buf = alloc(len);
if (buf == NULL)
return NULL;
if (is_powershell)
{
if (itmp != NULL)
vim_snprintf((char *)buf, len, "& { Get-Content %s | & %s }",
itmp, cmd);
else
vim_snprintf((char *)buf, len, "(%s)", cmd);
}
else
{
#if defined(UNIX)
// Put braces around the command (for concatenated commands) when
// redirecting input and/or output.
if (itmp != NULL || otmp != NULL)
{
if (is_fish_shell)
vim_snprintf((char *)buf, len, "begin; %s; end", (char *)cmd);
else
vim_snprintf((char *)buf, len, "(%s)", (char *)cmd);
}
else
STRCPY(buf, 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.
if (*p_sxe != NUL && *p_sxq == '(')
{
if (itmp != NULL || otmp != NULL)
vim_snprintf((char *)buf, len, "(%s)", (char *)cmd);
else
STRCPY(buf, cmd);
if (itmp != NULL)
{
STRCAT(buf, " < ");
STRCAT(buf, itmp);
}
}
else
{
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 = find_pipe(buf);
if (p != NULL)
*p = NUL;
}
STRCAT(buf, " <"); // " < " causes problems on Amiga
STRCAT(buf, itmp);
if (*p_shq == NUL)
{
p = find_pipe(cmd);
if (p != NULL)
{
// insert a space before the '|' for DOS
STRCAT(buf, " ");
STRCAT(buf, p);
}
}
}
}
#endif
}
if (otmp != NULL)
append_redir(buf, (int)len, p_srr, otmp);
return buf;
}
/*
* Append output redirection for file "fname" to the end of string buffer
* "buf[buflen]"
* 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(
char_u *buf,
int buflen,
char_u *opt,
char_u *fname)
{
char_u *p;
char_u *end;
end = buf + STRLEN(buf);
// find "%s"
for (p = opt; (p = vim_strchr(p, '%')) != NULL; ++p)
{
if (p[1] == 's') // found %s
break;
if (p[1] == '%') // skip %%
++p;
}
if (p != NULL)
{
#ifdef MSWIN
*end++ = ' '; // not really needed? Not with sh, ksh or bash
#endif
vim_snprintf((char *)end, (size_t)(buflen - (end - buf)),
(char *)opt, (char *)fname);
}
else
vim_snprintf((char *)end, (size_t)(buflen - (end - buf)), " %s %s",
(char *)opt, (char *)fname);
}
/*
* Implementation of ":fixdel", also used by get_stty().
* <BS> resulting <Del>
* ^? ^H
* not ^? ^?
*/
void
do_fixdel(exarg_T *eap UNUSED)
{
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(
linenr_T lnum,
int use_number,
int list)
{
char numbuf[30];
if (curwin->w_p_nu || use_number)
{
vim_snprintf(numbuf, sizeof(numbuf),
"%*ld ", number_width(curwin), (long)lnum);
msg_puts_attr(numbuf, HL_ATTR(HLF_N)); // Highlight line nrs
}
msg_prt_line(ml_get(lnum), list);
}
/*
* Print a text line. Also in silent mode ("ex -s").
*/
void
print_line(linenr_T lnum, int use_number, int list)
{
int save_silent = silent_mode;
// apply :filter /pat/
if (message_filtered(ml_get(lnum)))
return;
msg_start();
silent_mode = FALSE;
info_message = TRUE; // use mch_msg(), not mch_errmsg()
print_line_no_prefix(lnum, use_number, list);
if (save_silent)
{
msg_putchar('\n');
cursor_on(); // msg_start() switches it off
out_flush();
silent_mode = save_silent;
}
info_message = FALSE;
}
int
rename_buffer(char_u *new_fname)
{
char_u *fname, *sfname, *xfname;
buf_T *buf;
buf = curbuf;
apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf);
// buffer changed, don't change name now
if (buf != curbuf)
return FAIL;
#ifdef FEAT_EVAL
if (aborting()) // autocmds may abort script processing
return FAIL;
#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, new_fname, NULL, TRUE) == FAIL)
{
curbuf->b_ffname = fname;
curbuf->b_sfname = sfname;
return FAIL;
}
curbuf->b_flags |= BF_NOTEDITED;
if (xfname != NULL && *xfname != NUL)
{
buf = buflist_new(fname, xfname, curwin->w_cursor.lnum, 0);
if (buf != NULL && (cmdmod.cmod_flags & CMOD_KEEPALT) == 0)
curwin->w_alt_fnum = buf->b_fnum;
}
vim_free(fname);
vim_free(sfname);
apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf);
// Change directories when the 'acd' option is set.
DO_AUTOCHDIR;
return OK;
}
/*
* ":file[!] [fname]".
*/
void
ex_file(exarg_T *eap)
{
// ":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_invalid_argument));
return;
}
if (*eap->arg != NUL || eap->addr_count == 1)
{
if (rename_buffer(eap->arg) == FAIL)
return;
redraw_tabline = TRUE;
}
// print file name if no argument or 'F' is not in 'shortmess'
if (*eap->arg == NUL || !shortmess(SHM_FILEINFO))
fileinfo(FALSE, FALSE, eap->forceit);
}
/*
* ":update".
*/
void
ex_update(exarg_T *eap)
{
if (curbufIsChanged())
(void)do_write(eap);
}
/*
* ":write" and ":saveas".
*/
void
ex_write(exarg_T *eap)
{
if (eap->cmdidx == CMD_saveas)
{
// :saveas does not take a range, uses all lines.
eap->line1 = 1;
eap->line2 = curbuf->b_ml.ml_line_count;
}
if (eap->usefilter) // input lines to shell command
do_bang(1, eap, FALSE, TRUE, FALSE);
else
(void)do_write(eap);
}
#ifdef UNIX
static int
check_writable(char_u *fname)
{
if (mch_nodetype(fname) == NODE_OTHER)
{
semsg(_(e_str_is_not_file_or_writable_device), fname);
return FAIL;
}
return OK;
}
#endif
/*
* Write the 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(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;
int name_was_missing;
if (not_writing()) // check 'write' option
return FAIL;
ffname = eap->arg;
#ifdef FEAT_BROWSE
if ((cmdmod.cmod_flags & CMOD_BROWSE) && !exiting)
{
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_argument_required));
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(_(e_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 && (bt_dontwrite_msg(curbuf) || check_fname() == FAIL
#ifdef UNIX
|| check_writable(curbuf->b_ffname) == FAIL
#endif
|| 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.cmod_flags & CMOD_CONFIRM))
{
if (vim_dialog_yesno(VIM_QUESTION, NULL,
(char_u *)_("Write partial file?"), 2) != VIM_YES)
goto theend;
eap->forceit = TRUE;
}
else
#endif
{
emsg(_(e_use_bang_to_write_partial_buffer));
goto theend;
}
}
}
if (check_overwrite(eap, curbuf, fname, ffname, other) == OK)
{
if (eap->cmdidx == CMD_saveas && alt_buf != NULL)
{
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;
}
// 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);
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;
}
// If 'filetype' was empty try detecting it now.
if (*curbuf->b_p_ft == NUL)
{
if (au_has_group((char_u *)"filetypedetect"))
(void)do_doautocmd((char_u *)"filetypedetect BufRead",
TRUE, NULL);
do_modelines(0);
}
// Autocommands may have changed buffer names, esp. when
// 'autochdir' is set.
fname = curbuf->b_sfname;
}
name_was_missing = curbuf->b_ffname == NULL;
retval = buf_write(curbuf, ffname, fname, eap->line1, eap->line2,
eap, eap->append, eap->forceit, TRUE, FALSE);
// After ":saveas fname" reset 'readonly'.
if (eap->cmdidx == CMD_saveas)
{
if (retval == OK)
{
curbuf->b_p_ro = FALSE;
redraw_tabline = TRUE;
}
}
// Change directories when the 'acd' option is set and the file name
// got changed or set.
if (eap->cmdidx == CMD_saveas || name_was_missing)
DO_AUTOCHDIR;
}
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.
*/
int
check_overwrite(
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 another file or b_flags set or not writing the whole file:
* overwriting only allowed with '!'.
* If "other" is FALSE and bt_nofilename(buf) is TRUE, this must be
* writing an "acwrite" buffer to the same file as its b_ffname, and
* buf_write() will only allow writing with BufWriteCmd autocommands,
* so there is no need for an overwrite check.
*/
if ( (other
|| (!bt_nofilename(buf)
&& ((buf->b_flags & BF_NOTEDITED)
|| ((buf->b_flags & BF_NEW)
&& vim_strchr(p_cpo, CPO_OVERNEW) == NULL)
|| (buf->b_flags & BF_READERR))))
&& !p_wa
&& vim_fexists(ffname))
{
if (!eap->forceit && !eap->append)
{
#ifdef UNIX
// with UNIX it is possible to open a directory
if (mch_isdir(ffname))
{
semsg(_(e_str_is_directory), ffname);
return FAIL;
}
#endif
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if (p_confirm || (cmdmod.cmod_flags & CMOD_CONFIRM))
{
char_u buff[DIALOG_MSG_SIZE];
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_file_exists));
return FAIL;
}
}
// For ":w! filename" check that no swap file exists for "filename".
if (other && !emsg_silent)
{
char_u *dir;
char_u *p;
int r;
char_u *swapname;
// We only try the first entry in 'directory', without checking if
// it's writable. If the "." directory is not writable the write
// will probably fail anyway.
// Use 'shortname' of the current buffer, since there is no buffer
// for the written file.
if (*p_dir == NUL)
{
dir = alloc(5);
if (dir == NULL)
return FAIL;
STRCPY(dir, ".");
}
else
{
dir = alloc(MAXPATHL);
if (dir == NULL)
return FAIL;
p = p_dir;
copy_option_part(&p, dir, MAXPATHL, ",");
}
swapname = makeswapname(fname, ffname, curbuf, dir);
vim_free(dir);
r = vim_fexists(swapname);
if (r)
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if (p_confirm || (cmdmod.cmod_flags & CMOD_CONFIRM))
{
char_u buff[DIALOG_MSG_SIZE];
dialog_msg(buff,
_("Swap file \"%s\" exists, overwrite anyway?"),
swapname);
if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2)
!= VIM_YES)
{
vim_free(swapname);
return FAIL;
}
eap->forceit = TRUE;
}
else
#endif
{
semsg(_(e_swap_file_exists_str_silent_overrides), swapname);
vim_free(swapname);
return FAIL;
}
}
vim_free(swapname);
}
}
return OK;
}
/*
* Handle ":wnext", ":wNext" and ":wprevious" commands.
*/
void
ex_wnext(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(exarg_T *eap)
{
buf_T *buf;
int error = 0;
int save_forceit = eap->forceit;
if (eap->cmdidx == CMD_xall || eap->cmdidx == CMD_wqall)
{
if (before_quit_all(eap) == FAIL)
return;
exiting = TRUE;
}
FOR_ALL_BUFFERS(buf)
{
#ifdef FEAT_TERMINAL
if (exiting && term_job_running(buf->b_term))
{
no_write_message_nobang(buf);
++error;
}
else
#endif
if (bufIsChanged(buf) && !bt_dontwrite(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.cmod_flags & CMOD_BROWSE))
browse_save_fname(buf);
#endif
if (buf->b_ffname == NULL)
{
semsg(_(e_no_file_name_for_buffer_nr), (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
{
bufref_T bufref;
set_bufref(&bufref, buf);
if (buf_write_all(buf, eap->forceit) == FAIL)
++error;
// an autocommand may have deleted the buffer
if (!bufref_valid(&bufref))
buf = firstbuf;
}
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 set.
*/
static int
not_writing(void)
{
if (p_write)
return FALSE;
emsg(_(e_file_not_written_writing_is_disabled_by_write_option));
return TRUE;
}
/*
* Check if a buffer is read-only (either 'readonly' option is set or file 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(int *forceit, buf_T *buf)
{
stat_T st;
// Handle a file being readonly when the 'readonly' option is set or when
// the file exists and permissions are read-only.
// We will send 0777 to check_file_readonly(), as the "perm" variable is
// important for device checks but not here.
if (!*forceit && (buf->b_p_ro
|| (mch_stat((char *)buf->b_ffname, &st) >= 0
&& check_file_readonly(buf->b_ffname, 0777))))
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if ((p_confirm || (cmdmod.cmod_flags & CMOD_CONFIRM))
&& buf->b_fname != NULL)
{
char_u buff[DIALOG_MSG_SIZE];
if (buf->b_p_ro)
dialog_msg(buff, _("'readonly' option is set for \"%s\".\nDo you wish to write anyway?"),
buf->b_fname);
else
dialog_msg(buff, _("File permissions of \"%s\" are read-only.\nIt may still be possible to write it.\nDo you wish to try?"),
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
if (buf->b_p_ro)
emsg(_(e_readonly_option_is_set_add_bang_to_override));
else
semsg(_(e_str_is_read_only_add_bang_to_override), buf->b_fname);
return TRUE;
}
return FALSE;
}
/*
* Try to abandon the current file and edit a new or existing file.
* "fnum" is the number of the file, if zero use "ffname_arg"/"sfname_arg".
* "lnum" is the line number for the cursor in the new file (if non-zero).
*
* Return:
* GETFILE_ERROR for "normal" error,
* GETFILE_NOT_WRITTEN for "not written" error,
* GETFILE_SAME_FILE for success
* GETFILE_OPEN_OTHER for successfully opening another file.
*/
int
getfile(
int fnum,
char_u *ffname_arg,
char_u *sfname_arg,
int setpm,
linenr_T lnum,
int forceit)
{
char_u *ffname = ffname_arg;
char_u *sfname = sfname_arg;
int other;
int retval;
char_u *free_me = NULL;
if (text_locked())
return GETFILE_ERROR;
if (curbuf_locked())
return GETFILE_ERROR;
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 && !buf_hide(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
{
--no_wait_return;
no_write_message();
retval = GETFILE_NOT_WRITTEN; // 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 = GETFILE_SAME_FILE; // it's in the same file
}
else if (do_ecmd(fnum, ffname, sfname, NULL, lnum,
(buf_hide(curbuf) ? ECMD_HIDE : 0) + (forceit ? ECMD_FORCEIT : 0),
curwin) == OK)
retval = GETFILE_OPEN_OTHER; // opened another file
else
retval = GETFILE_ERROR; // 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
* ECMD_ALTBUF: like ECMD_ADDBUF and also set the alternate file
* ECMD_NOWINENTER: Do not trigger BufWinEnter
* oldwin: Should be "curwin" when editing a new buffer in the current
* window, NULL when splitting the window first. When not NULL info
* of the previous buffer for "oldwin" is stored.
*
* return FAIL for failure, OK otherwise
*/
int
do_ecmd(
int fnum,
char_u *ffname,
char_u *sfname,
exarg_T *eap, // can be NULL!
linenr_T newlnum,
int flags,
win_T *oldwin)
{
int other_file; // TRUE if editing another file
int oldbuf; // TRUE if using existing buffer
int auto_buf = FALSE; // TRUE if autocommands brought us
// into the buffer unexpectedly
char_u *new_name = NULL;
#if defined(FEAT_EVAL)
int did_set_swapcommand = FALSE;
#endif
buf_T *buf;
bufref_T bufref;
bufref_T old_curbuf;
char_u *free_fname = NULL;
#ifdef FEAT_BROWSE
char_u dot_path[] = ".";
char_u *browse_file = NULL;
#endif
int retval = FAIL;
long n;
pos_T orig_pos;
linenr_T topline = 0;
int newcol = -1;
int solcol = -1;
pos_T *pos;
char_u *command = NULL;
#ifdef FEAT_SPELL
int did_get_winopts = FALSE;
#endif
int readfile_flags = 0;
int did_inc_redrawing_disabled = FALSE;
long *so_ptr = curwin->w_p_so >= 0 ? &curwin->w_p_so : &p_so;
#ifdef FEAT_PROP_POPUP
if (ERROR_IF_TERM_POPUP_WINDOW)
return FAIL;
#endif
if (eap != NULL)
command = eap->do_ecmd_cmd;
set_bufref(&old_curbuf, curbuf);
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.cmod_flags & CMOD_BROWSE) && !exiting)
{
if (
# ifdef FEAT_GUI
!gui.in_use &&
# endif
au_has_group((char_u *)"FileExplorer"))
{
// No browsing supported but we do have the file explorer:
// Edit the directory.
if (ffname == NULL || !mch_isdir(ffname))
ffname = dot_path;
}
else
{
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
if (sfname != NULL)
fname_case(sfname, 0); // set correct case for sfname
#endif
if ((flags & (ECMD_ADDBUF | ECMD_ALTBUF))
&& (ffname == NULL || *ffname == NUL))
goto theend;
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);
}
}
/*
* 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 | ECMD_ALTBUF))))
&& check_changed(curbuf, (p_awa ? CCGD_AW : 0)
| (other_file ? 0 : CCGD_MULTWIN)
| ((flags & ECMD_FORCEIT) ? CCGD_FORCEIT : 0)
| (eap == NULL ? 0 : CCGD_EXCMD)))
{
if (fnum == 0 && other_file && ffname != NULL)
(void)setaltfname(ffname, sfname, newlnum < 0 ? 0 : newlnum);
goto theend;
}
// End Visual mode before switching to another buffer, so the text can be
// copied into the GUI selection buffer.
// Careful: may trigger ModeChanged() autocommand
// Should we block autocommands here?
reset_VIsual();
// autocommands freed window :(
if (oldwin != NULL && !win_valid(oldwin))
oldwin = NULL;
#if defined(FEAT_EVAL)
if ((command != NULL || newlnum > (linenr_T)0)
&& *get_vim_var_str(VV_SWAPCOMMAND) == NUL)
{
int len;
char_u *p;
// Set v:swapcommand for the SwapExists autocommands.
if (command != NULL)
len = (int)STRLEN(command) + 3;
else
len = 30;
p = alloc(len);
if (p != NULL)
{
if (command != NULL)
vim_snprintf((char *)p, len, ":%s\r", command);
else
vim_snprintf((char *)p, len, "%ldG", (long)newlnum);
set_vim_var_string(VV_SWAPCOMMAND, p, -1);
did_set_swapcommand = TRUE;
vim_free(p);
}
}
#endif
/*
* If we are starting to edit another file, open a (new) buffer.
* Otherwise we re-use the current buffer.
*/
if (other_file)
{
int prev_alt_fnum = curwin->w_alt_fnum;
if (!(flags & (ECMD_ADDBUF | ECMD_ALTBUF)))
{
if ((cmdmod.cmod_flags & CMOD_KEEPALT) == 0)
curwin->w_alt_fnum = curbuf->b_fnum;
if (oldwin != NULL)
buflist_altfpos(oldwin);
}
if (fnum)
buf = buflist_findnr(fnum);
else
{
if (flags & (ECMD_ADDBUF | ECMD_ALTBUF))
{
// Default the line number to zero to avoid that a wininfo item
// is added for the current window.
linenr_T tlnum = 0;
buf_T *newbuf;
if (command != NULL)
{
tlnum = atol((char *)command);
if (tlnum <= 0)
tlnum = 1L;
}
// Add BLN_NOCURWIN to avoid a new wininfo items are associated
// with the current window.
newbuf = buflist_new(ffname, sfname, tlnum,
BLN_LISTED | BLN_NOCURWIN);
if (newbuf != NULL)
{
if (flags & ECMD_ALTBUF)
curwin->w_alt_fnum = newbuf->b_fnum;
if (tlnum > 0)
newbuf->b_last_cursor.lnum = tlnum;
}
goto theend;
}
buf = buflist_new(ffname, sfname, 0L,
BLN_CURBUF | ((flags & ECMD_SET_HELP) ? 0 : BLN_LISTED));
// autocommands may change curwin and curbuf
if (oldwin != NULL)
oldwin = curwin;
set_bufref(&old_curbuf, curbuf);
}
if (buf == NULL)
goto theend;
if (curwin->w_alt_fnum == buf->b_fnum && prev_alt_fnum != 0)
// reusing the buffer, keep the old alternate file
curwin->w_alt_fnum = prev_alt_fnum;
if (buf->b_ml.ml_mfp == NULL) // no memfile yet
{
oldbuf = FALSE;
}
else // existing memfile
{
oldbuf = TRUE;
set_bufref(&bufref, buf);
(void)buf_check_timestamp(buf, FALSE);
// Check if autocommands made the buffer invalid or changed the
// current buffer.
if (!bufref_valid(&bufref) || curbuf != old_curbuf.br_buf)
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(), nothing to do here.
*/
if (buf != curbuf)
{
bufref_T save_au_new_curbuf;
int save_cmdwin_type = cmdwin_type;
// BufLeave applies to the old buffer.
cmdwin_type = 0;
/*
* 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);
save_au_new_curbuf = au_new_curbuf;
set_bufref(&au_new_curbuf, buf);
apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf);
cmdwin_type = save_cmdwin_type;
if (!bufref_valid(&au_new_curbuf))
{
// new buffer has been deleted
delbuf_msg(new_name); // frees new_name
au_new_curbuf = save_au_new_curbuf;
goto theend;
}
#ifdef FEAT_EVAL
if (aborting()) // autocmds may abort script processing
{
vim_free(new_name);
au_new_curbuf = save_au_new_curbuf;
goto theend;
}
#endif
if (buf == curbuf) // already in new buffer
auto_buf = TRUE;
else
{
win_T *the_curwin = curwin;
int did_decrement;
buf_T *was_curbuf = curbuf;
// Set the w_closing flag to avoid that autocommands close the
// window. And set b_locked for the same reason.
the_curwin->w_closing = TRUE;
++buf->b_locked;
if (curbuf == old_curbuf.br_buf)
buf_copy_options(buf, BCO_ENTER);
// Close the link to the current buffer. This will set
// oldwin->w_buffer to NULL.
u_sync(FALSE);
did_decrement = close_buffer(oldwin, curbuf,
(flags & ECMD_HIDE) ? 0 : DOBUF_UNLOAD, FALSE, FALSE);
// Autocommands may have closed the window.
if (win_valid(the_curwin))
the_curwin->w_closing = FALSE;
--buf->b_locked;
#ifdef FEAT_EVAL
// autocmds may abort script processing
if (aborting() && curwin->w_buffer != NULL)
{
vim_free(new_name);
au_new_curbuf = save_au_new_curbuf;
goto theend;
}
#endif
// Be careful again, like above.
if (!bufref_valid(&au_new_curbuf))
{
// new buffer has been deleted
delbuf_msg(new_name); // frees new_name
au_new_curbuf = save_au_new_curbuf;
goto theend;
}
if (buf == curbuf) // already in new buffer
{
// close_buffer() has decremented the window count,
// increment it again here and restore w_buffer.
if (did_decrement && buf_valid(was_curbuf))
++was_curbuf->b_nwindows;
if (win_valid_any_tab(oldwin) && oldwin->w_buffer == NULL)
oldwin->w_buffer = was_curbuf;
auto_buf = TRUE;
}
else
{
#ifdef FEAT_SYN_HL
/*
* <VN> We could instead free the synblock
* and re-attach to buffer, perhaps.
*/
if (curwin->w_buffer == NULL
|| curwin->w_s == &(curwin->w_buffer->b_s))
curwin->w_s = &(buf->b_s);
#endif
curwin->w_buffer = buf;
curbuf = buf;
++curbuf->b_nwindows;
// Set 'fileformat', 'binary' and 'fenc' when forced.
if (!oldbuf && eap != NULL)
{
set_file_options(TRUE, eap);
set_forced_fenc(eap);
}
}
// 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(curbuf);
#ifdef FEAT_SPELL
did_get_winopts = TRUE;
#endif
}
vim_free(new_name);
au_new_curbuf = save_au_new_curbuf;
}
curwin->w_pcmark.lnum = 1;
curwin->w_pcmark.col = 0;
}
else // !other_file
{
if ((flags & (ECMD_ADDBUF | ECMD_ALTBUF)) || check_fname() == FAIL)
goto theend;
oldbuf = (flags & ECMD_OLDBUF);
}
// Don't redraw until the cursor is in the right line, otherwise
// autocommands may cause ml_get errors.
++RedrawingDisabled;
did_inc_redrawing_disabled = TRUE;
buf = curbuf;
if ((flags & ECMD_SET_HELP) || keep_help_flag)
{
prepare_help_buffer();
}
else
{
// 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);
}
// 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;
/*
* 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;
}
buf = curbuf;
if (buf->b_fname != NULL)
new_name = vim_strsave(buf->b_fname);
else
new_name = NULL;
set_bufref(&bufref, buf);
// If the buffer was used before, store the current contents so that
// the reload can be undone. Do not do this if the (empty) buffer is
// being re-used for another file.
if (!(curbuf->b_flags & BF_NEVERLOADED)
&& (p_ur < 0 || curbuf->b_ml.ml_line_count <= p_ur))
{
// Sync first so that this is a separate undo-able action.
u_sync(FALSE);
if (u_savecommon(0, curbuf->b_ml.ml_line_count + 1, 0, TRUE)
== FAIL)
{
vim_free(new_name);
goto theend;
}
u_unchanged(curbuf);
buf_freeall(curbuf, BFA_KEEP_UNDO);
// tell readfile() not to clear or reload undo info
readfile_flags = READ_KEEP_UNDO;
}
else
buf_freeall(curbuf, 0); // free all things for buffer
// If autocommands deleted the buffer we were going to re-edit, give
// up and jump to the end.
if (!bufref_valid(&bufref))
{
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
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
*/
// Assume success now
retval = OK;
// If the file name was changed, reset the not-edit flag so that ":write"
// works.
if (!other_file)
curbuf->b_flags &= ~BF_NOTEDITED;
/*
* Check if we are editing the w_arg_idx file in the argument list.
*/
check_arg_idx(curwin);
if (!auto_buf)
{
/*
* Set cursor and init window before reading the file and executing
* autocommands. This allows for the autocommands to position the
* cursor.
*/
curwin_init();
#ifdef FEAT_FOLDING
// It's possible that all lines in the buffer changed. Need to update
// automatic folding for all windows where it's used.
{
win_T *win;
tabpage_T *tp;
FOR_ALL_TAB_WINDOWS(tp, win)
if (win->w_buffer == curbuf)
foldUpdateAll(win);
}
#endif
// Change directories when the 'acd' option is set.
DO_AUTOCHDIR;
/*
* Careful: open_buffer() and apply_autocmds() may change the current
* buffer and window.
*/
orig_pos = curwin->w_cursor;
topline = curwin->w_topline;
if (!oldbuf) // need to read the file
{
#ifdef FEAT_PROP_POPUP
// Don't use the swap-exists dialog for a popup window, can't edit
// the buffer.
if (WIN_IS_POPUP(curwin))
curbuf->b_flags |= BF_NO_SEA;
#endif
swap_exists_action = SEA_DIALOG;
curbuf->b_flags |= BF_CHECK_RO; // set/reset 'ro' flag
/*
* Open the buffer and read the file.
*/
if (flags & ECMD_NOWINENTER)
readfile_flags |= READ_NOWINENTER;
#if defined(FEAT_EVAL)
if (should_abort(open_buffer(FALSE, eap, readfile_flags)))
retval = FAIL;
#else
(void)open_buffer(FALSE, eap, readfile_flags);
#endif
#ifdef FEAT_PROP_POPUP
curbuf->b_flags &= ~BF_NO_SEA;
#endif
if (swap_exists_action == SEA_QUIT)
retval = FAIL;
handle_swap_exists(&old_curbuf);
}
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(OPT_WINONLY);
apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE,
curbuf, &retval);
if ((flags & ECMD_NOWINENTER) == 0)
apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE,
curbuf, &retval);
}
check_arg_idx(curwin);
// If autocommands change the cursor position or topline, we should
// keep it. Also when it moves within a line. But not when it moves
// to the first non-blank.
if (!EQUAL_POS(curwin->w_cursor, orig_pos))
{
char_u *text = ml_get_curline();
if (curwin->w_cursor.lnum != orig_pos.lnum
|| curwin->w_cursor.col != (int)(skipwhite(text) - text))
{
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();
maketitle();
#if defined(FEAT_PROP_POPUP) && defined(FEAT_QUICKFIX)
if (WIN_IS_POPUP(curwin) && curwin->w_p_pvw && retval != FAIL)
popup_set_title(curwin);
#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.
if (curwin->w_p_diff)
{
diff_buf_add(curbuf);
diff_invalidate(curbuf);
}
#endif
#ifdef FEAT_SPELL
// If the window options were changed may need to set the spell language.
// Can only do this after the buffer has been properly setup.
if (did_get_winopts && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL)
(void)parse_spelllang(curwin);
#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();
curwin->w_cursor.coladd = 0;
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);
}
}
// Check if cursors in other windows on the same buffer are still valid
check_lnums(FALSE);
/*
* Did not read the file, need to show some info about the file.
* Do this after setting the cursor.
*/
if (oldbuf && !auto_buf)
{
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;
if (!shortmess(SHM_FILEINFO))
fileinfo(FALSE, TRUE, FALSE);
msg_scrolled_ign = FALSE;
}
#ifdef FEAT_VIMINFO
curbuf->b_last_used = vim_time();
#endif
if (command != NULL)
do_cmdline(command, NULL, NULL, DOCMD_VERBOSE|DOCMD_RANGEOK);
#ifdef FEAT_KEYMAP
if (curbuf->b_kmap_state & KEYMAP_INIT)
(void)keymap_init();
#endif
if (RedrawingDisabled > 0)
--RedrawingDisabled;
did_inc_redrawing_disabled = FALSE;
if (!skip_redraw)
{
n = *so_ptr;
if (topline == 0 && command == NULL)
*so_ptr = 9999; // force cursor halfway the window
update_topline();
curwin->w_scbind_pos = curwin->w_topline;
*so_ptr = n;
redraw_curbuf_later(UPD_NOT_VALID); // redraw this buffer later
}
if (p_im && (State & MODE_INSERT) == 0)
need_start_insertmode = TRUE;
#ifdef FEAT_AUTOCHDIR
// Change directories when the 'acd' option is set and we aren't already in
// that directory (should already be done above). Expect getcwd() to be
// faster than calling shorten_fnames() unnecessarily.
if (p_acd && curbuf->b_ffname != NULL)
{
char_u curdir[MAXPATHL];
char_u filedir[MAXPATHL];
vim_strncpy(filedir, curbuf->b_ffname, MAXPATHL - 1);
*gettail_sep(filedir) = NUL;
if (mch_dirname(curdir, MAXPATHL) != FAIL
&& vim_fnamecmp(curdir, filedir) != 0)
do_autochdir();
}
#endif
#if defined(FEAT_NETBEANS_INTG)
if (curbuf->b_ffname != NULL)
{
# ifdef FEAT_NETBEANS_INTG
if ((flags & ECMD_SET_HELP) != ECMD_SET_HELP)
netbeans_file_opened(curbuf);
# endif
}
#endif
theend:
if (did_inc_redrawing_disabled && RedrawingDisabled > 0)
--RedrawingDisabled;
#if defined(FEAT_EVAL)
if (did_set_swapcommand)
set_vim_var_string(VV_SWAPCOMMAND, NULL, -1);
#endif
#ifdef FEAT_BROWSE
vim_free(browse_file);
#endif
vim_free(free_fname);
return retval;
}
static void
delbuf_msg(char_u *name)
{
semsg(_(e_autocommands_unexpectedly_deleted_new_buffer_str),
name == NULL ? (char_u *)"" : name);
vim_free(name);
au_new_curbuf.br_buf = NULL;
au_new_curbuf.br_buf_free_count = 0;
}
static int append_indent = 0; // autoindent for first line
/*
* ":insert" and ":append", also used by ":change"
*/
void
ex_append(exarg_T *eap)
{
char_u *theline;
int did_undo = FALSE;
linenr_T lnum = eap->line2;
int indent = 0;
char_u *p;
int vcol;
int empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
#ifdef FEAT_EVAL
if (not_in_vim9(eap) == FAIL)
return;
#endif
// the ! flag toggles autoindent
if (eap->forceit)
curbuf->b_p_ai = !curbuf->b_p_ai;
// First autoindent comes from the line we start on
if (eap->cmdidx != CMD_change && curbuf->b_p_ai && lnum > 0)
append_indent = get_indent_lnum(lnum);
if (eap->cmdidx != CMD_append)
--lnum;
// when the buffer is empty need to delete the dummy line
if (empty && lnum == 1)
lnum = 0;
State = MODE_INSERT; // behave like in Insert mode
if (curbuf->b_p_iminsert == B_IMODE_LMAP)
State |= MODE_LANGMAP;
for (;;)
{
msg_scroll = TRUE;
need_wait_return = FALSE;
if (curbuf->b_p_ai)
{
if (append_indent >= 0)
{
indent = append_indent;
append_indent = -1;
}
else if (lnum > 0)
indent = get_indent_lnum(lnum);
}
ex_keep_indent = FALSE;
if (eap->getline == NULL)
{
// No getline() function, use the lines that follow. This ends
// when there is no more.
if (eap->nextcmd == NULL || *eap->nextcmd == NUL)
break;
p = vim_strchr(eap->nextcmd, NL);
if (p == NULL)
p = eap->nextcmd + STRLEN(eap->nextcmd);
theline = vim_strnsave(eap->nextcmd, p - eap->nextcmd);
if (*p != NUL)
++p;
eap->nextcmd = p;
}
else
{
int save_State = State;
// Set State to avoid the cursor shape to be set to MODE_INSERT
// state when getline() returns.
State = MODE_CMDLINE;
theline = eap->getline(
#ifdef FEAT_EVAL
eap->cstack->cs_looplevel > 0 ? -1 :
#endif
NUL, eap->cookie, indent, TRUE);
State = save_State;
}
lines_left = Rows - 1;
if (theline == NULL)
break;
// Using ^ CTRL-D in getexmodeline() makes us repeat the indent.
if (ex_keep_indent)
append_indent = indent;
// Look for the "." after automatic indent.
vcol = 0;
for (p = theline; indent > vcol; ++p)
{
if (*p == ' ')
++vcol;
else if (*p == TAB)
vcol += 8 - vcol % 8;
else
break;
}
if ((p[0] == '.' && p[1] == NUL)
|| (!did_undo && u_save(lnum, lnum + 1 + (empty ? 1 : 0))
== FAIL))
{
vim_free(theline);
break;
}
// don't use autoindent if nothing was typed.
if (p[0] == NUL)
theline[0] = NUL;
did_undo = TRUE;
ml_append(lnum, theline, (colnr_T)0, FALSE);
if (empty)
// there are no marks below the inserted lines
appended_lines(lnum, 1L);
else
appended_lines_mark(lnum, 1L);
vim_free(theline);
++lnum;
if (empty)
{
ml_delete(2L);
empty = FALSE;
}
}
State = MODE_NORMAL;
if (eap->forceit)
curbuf->b_p_ai = !curbuf->b_p_ai;
// "start" is set to eap->line2+1 unless that position is invalid (when
// eap->line2 pointed to the end of the buffer and nothing was appended)
// "end" is set to lnum when something has been appended, otherwise
// it is the same as "start" -- Acevedo
if ((cmdmod.cmod_flags & CMOD_LOCKMARKS) == 0)
{
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(exarg_T *eap)
{
linenr_T lnum;
#ifdef FEAT_EVAL
if (not_in_vim9(eap) == FAIL)
return;
#endif
if (eap->line2 >= eap->line1
&& u_save(eap->line1 - 1, eap->line2 + 1) == FAIL)
return;
// the ! flag toggles autoindent
if (eap->forceit ? !curbuf->b_p_ai : curbuf->b_p_ai)
append_indent = get_indent_lnum(eap->line1);
for (lnum = eap->line2; lnum >= eap->line1; --lnum)
{
if (curbuf->b_ml.ml_flags & ML_EMPTY) // nothing to delete
break;
ml_delete(eap->line1);
}
// make sure the cursor is not beyond the end of the file now
check_cursor_lnum();
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(exarg_T *eap)
{
char_u *x;
long bigness;
char_u *kind;
int minus = 0;
linenr_T start, end, curs, i;
int j;
linenr_T lnum = eap->line2;
// Vi compatible: ":z!" uses display height, without a count uses
// 'scroll'
if (eap->forceit)
bigness = Rows - 1;
else if (!ONE_WINDOW)
bigness = curwin->w_height - 3;
else
bigness = curwin->w_p_scr * 2;
if (bigness < 1)
bigness = 1;
x = eap->arg;
kind = x;
if (*kind == '-' || *kind == '+' || *kind == '='
|| *kind == '^' || *kind == '.')
++x;
while (*x == '-' || *x == '+')
++x;
if (*x != 0)
{
if (!VIM_ISDIGIT(*x))
{
emsg(_(e_non_numeric_argument_to_z));
return;
}
else
{
bigness = atol((char *)x);
// bigness could be < 0 if atol(x) overflows.
if (bigness > 2 * curbuf->b_ml.ml_line_count || bigness < 0)
bigness = 2 * curbuf->b_ml.ml_line_count;
p_window = bigness;
if (*kind == '=')
bigness += 2;
}
}
// the number of '-' and '+' multiplies the distance
if (*kind == '-' || *kind == '+')
for (x = kind + 1; *x == *kind; ++x)
;
switch (*kind)
{
case '-':
start = lnum - bigness * (linenr_T)(x - kind) + 1;
end = start + bigness - 1;
curs = end;
break;
case '=':
start = lnum - (bigness + 1) / 2 + 1;
end = lnum + (bigness + 1) / 2 - 1;
curs = lnum;
minus = 1;
break;
case '^':
start = lnum - bigness * 2;
end = lnum - bigness;
curs = lnum - bigness;
break;
case '.':
start = lnum - (bigness + 1) / 2 + 1;
end = lnum + (bigness + 1) / 2 - 1;
curs = end;
break;
default: // '+'
start = lnum;
if (*kind == '+')
start += bigness * (linenr_T)(x - kind - 1) + 1;
else if (eap->addr_count == 0)
++start;
end = start + bigness - 1;
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;
else if (curs < 1)
curs = 1;
for (i = start; i <= end; i++)
{
if (minus && i == lnum)
{
msg_putchar('\n');
for (j = 1; j < Columns; j++)
msg_putchar('-');
}
print_line(i, eap->flags & EXFLAG_NR, eap->flags & EXFLAG_LIST);
if (minus && i == lnum)
{
msg_putchar('\n');
for (j = 1; j < Columns; j++)
msg_putchar('-');
}
}
if (curwin->w_cursor.lnum != curs)
{
curwin->w_cursor.lnum = curs;
curwin->w_cursor.col = 0;
}
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(void)
{
if (restricted)
{
emsg(_(e_shell_commands_and_some_functionality_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(void)
{
if (secure)
{
secure = 2;
emsg(_(e_command_not_allowed_from_vimrc_in_current_dir_or_tag_search));
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_not_allowed_in_sandbox));
return TRUE;
}
#endif
return FALSE;
}
static char_u *old_sub = NULL; // previous substitute pattern
static int global_need_beginline; // call beginline() after ":g"
/*
* Flags that are kept between calls to :substitute.
*/
typedef struct {
int do_all; // do multiple substitutions per line
int do_ask; // ask for confirmation
int do_count; // count only
int do_error; // if false, ignore errors
int do_print; // print last line with subs.
int do_list; // list last line with subs.
int do_number; // list last line with line nr
int do_ic; // ignore case flag
} subflags_T;
/*
* Skip over the "sub" part in :s/pat/sub/ where "delimiter" is the separating
* character.
*/
char_u *
skip_substitute(char_u *start, int delimiter)
{
char_u *p = start;
while (p[0])
{
if (p[0] == delimiter) // end delimiter found
{
*p++ = NUL; // replace it with a NUL
break;
}
if (p[0] == '\\' && p[1] != 0) // skip escaped characters
++p;
MB_PTR_ADV(p);
}
return p;
}
static int
check_regexp_delim(int c)
{
if (isalpha(c))
{
emsg(_(e_regular_expressions_cant_be_delimited_by_letters));
return FAIL;
}
return OK;
}
/*
* 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
ex_substitute(exarg_T *eap)
{
linenr_T lnum;
long i = 0;
regmmatch_T regmatch;
static subflags_T subflags = {FALSE, FALSE, FALSE, TRUE, FALSE,
FALSE, FALSE, 0};
#ifdef FEAT_EVAL
subflags_T subflags_save;
#endif
int save_do_all; // remember user specified 'g' flag
int save_do_ask; // remember user specified 'c' flag
char_u *pat = NULL, *sub = NULL; // init for GCC
int delimiter;
int sublen;
int got_quit = FALSE;
int got_match = FALSE;
int which_pat;
char_u *cmd;
char_u *p;
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
char_u *sub_firstline; // allocated copy of first sub line
int endcolumn = FALSE; // cursor in last column when done
pos_T old_cursor = curwin->w_cursor;
int start_nsubs;
#ifdef FEAT_EVAL
int save_ma = 0;
int save_sandbox = 0;
#endif
#ifdef FEAT_PROP_POPUP
textprop_T *text_props = NULL;
#endif
cmd = eap->arg;
if (!global_busy)
{
sub_nsubs = 0;
sub_nlines = 0;
}
start_nsubs = sub_nsubs;
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 (check_regexp_delim(*cmd) == FAIL)
return;
#ifdef FEAT_EVAL
if (in_vim9script() && check_global_and_subst(eap->cmd, eap->arg)
== FAIL)
return;
#endif
/*
* undocumented vi feature:
* "\/sub/" and "\?sub?" use last used search pattern (almost like
* //sub/r). "\&sub&" use last substitute pattern (like //sub/).
*/
if (*cmd == '\\')
{
if (in_vim9script())
{
emsg(_(e_cannot_use_s_backslash_in_vim9_script));
return;
}
++cmd;
if (vim_strchr((char_u *)"/?&", *cmd) == NULL)
{
emsg(_(e_backslash_should_be_followed_by));
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_ex(cmd, delimiter, magic_isset(),
&eap->arg, NULL, NULL);
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.
*/
p = cmd; // remember the start of the substitution
cmd = skip_substitute(cmd, delimiter);
sub = vim_strsave(p);
if (sub == NULL)
// out of memory
return;
if (!eap->skip)
{
// In POSIX vi ":s/pat/%/" uses the previous subst. string.
if (STRCMP(sub, "%") == 0
&& vim_strchr(p_cpo, CPO_SUBPERCENT) != NULL)
{
if (old_sub == NULL) // there is no previous command
{
emsg(_(e_no_previous_substitute_regular_expression));
vim_free(sub);
return;
}
vim_free(sub);
sub = vim_strsave(old_sub);
if (sub == NULL)
// out of memory
return;
}
else
{
vim_free(old_sub);
old_sub = vim_strsave(sub);
if (old_sub == NULL)
// out of memory
return;
}
}
}
else if (!eap->skip) // use previous pattern and substitution
{
if (old_sub == NULL) // there is no previous command
{
emsg(_(e_no_previous_substitute_regular_expression));
return;
}
pat = NULL; // search_regcomp() will use previous pattern
sub = vim_strsave(old_sub);
// Vi compatibility quirk: repeating with ":s" keeps the cursor in the
// last column after using "$".
endcolumn = (curwin->w_curswant == MAXCOL);
}
// Recognize ":%s/\n//" and turn it into a join command, which is much
// more efficient.
// TODO: find a generic solution to make line-joining operations more
// efficient, avoid allocating a string that grows in size.
if (pat != NULL && STRCMP(pat, "\\n") == 0
&& *sub == NUL
&& (*cmd == NUL || (cmd[1] == NUL && (*cmd == 'g' || *cmd == 'l'
|| *cmd == 'p' || *cmd == '#'))))
{
linenr_T joined_lines_count;
if (eap->skip)
{
vim_free(sub);
return;
}
curwin->w_cursor.lnum = eap->line1;
if (*cmd == 'l')
eap->flags = EXFLAG_LIST;
else if (*cmd == '#')
eap->flags = EXFLAG_NR;
else if (*cmd == 'p')
eap->flags = EXFLAG_PRINT;
// The number of lines joined is the number of lines in the range plus
// one. One less when the last line is included.
joined_lines_count = eap->line2 - eap->line1 + 1;
if (eap->line2 < curbuf->b_ml.ml_line_count)
++joined_lines_count;
if (joined_lines_count > 1)
{
(void)do_join(joined_lines_count, FALSE, TRUE, FALSE, TRUE);
sub_nsubs = joined_lines_count - 1;
sub_nlines = 1;
(void)do_sub_msg(FALSE);
ex_may_print(eap);
}
if ((cmdmod.cmod_flags & CMOD_KEEPPATTERNS) == 0)
save_re_pat(RE_SUBST, pat, magic_isset());
// put pattern in history
add_to_history(HIST_SEARCH, pat, TRUE, NUL);
vim_free(sub);
return;
}
/*
* Find trailing options. When '&' is used, keep old options.
*/
if (*cmd == '&')
++cmd;
else
{
#ifdef FEAT_EVAL
if (in_vim9script())
{
// ignore 'gdefault' and 'edcompatible'
subflags.do_all = FALSE;
subflags.do_ask = FALSE;
}
else
#endif
if (!p_ed)
{
if (p_gd) // default is global on
subflags.do_all = TRUE;
else
subflags.do_all = FALSE;
subflags.do_ask = FALSE;
}
subflags.do_error = TRUE;
subflags.do_print = FALSE;
subflags.do_list = FALSE;
subflags.do_count = FALSE;
subflags.do_number = FALSE;
subflags.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')
subflags.do_all = !subflags.do_all;
else if (*cmd == 'c')
subflags.do_ask = !subflags.do_ask;
else if (*cmd == 'n')
subflags.do_count = TRUE;
else if (*cmd == 'e')
subflags.do_error = !subflags.do_error;
else if (*cmd == 'r') // use last used regexp
which_pat = RE_LAST;
else if (*cmd == 'p')
subflags.do_print = TRUE;
else if (*cmd == '#')
{
subflags.do_print = TRUE;
subflags.do_number = TRUE;
}
else if (*cmd == 'l')
{
subflags.do_print = TRUE;
subflags.do_list = TRUE;
}
else if (*cmd == 'i') // ignore case
subflags.do_ic = 'i';
else if (*cmd == 'I') // don't ignore case
subflags.do_ic = 'I';
else
break;
++cmd;
}
if (subflags.do_count)
subflags.do_ask = FALSE;
save_do_all = subflags.do_all;
save_do_ask = subflags.do_ask;
/*
* check for a trailing count
*/
cmd = skipwhite(cmd);
if (VIM_ISDIGIT(*cmd))
{
i = getdigits(&cmd);
if (i <= 0 && !eap->skip && subflags.do_error)
{
emsg(_(e_positive_count_required));
vim_free(sub);
return;
}
else if (i >= INT_MAX)
{
char buf[20];
vim_snprintf(buf, sizeof(buf), "%ld", i);
semsg(_(e_val_too_large), buf);
vim_free(sub);
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
{
set_nextcmd(eap, cmd);
if (eap->nextcmd == NULL)
{
semsg(_(e_trailing_characters_str), cmd);
vim_free(sub);
return;
}
}
if (eap->skip) // not executing commands, only parsing
{
vim_free(sub);
return;
}
if (!subflags.do_count && !curbuf->b_p_ma)
{
// Substitution is not allowed in non-'modifiable' buffer
emsg(_(e_cannot_make_changes_modifiable_is_off));
vim_free(sub);
return;
}
if (search_regcomp(pat, NULL, RE_SUBST, which_pat, SEARCH_HIS, &regmatch) == FAIL)
{
if (subflags.do_error)
emsg(_(e_invalid_command));
vim_free(sub);
return;
}
// the 'i' or 'I' flag overrules 'ignorecase' and 'smartcase'
if (subflags.do_ic == 'i')
regmatch.rmm_ic = TRUE;
else if (subflags.do_ic == 'I')
regmatch.rmm_ic = FALSE;
sub_firstline = NULL;
/*
* If the substitute pattern starts with "\=" then it's an expression.
* Make a copy, a recursive function may free it.
* Otherwise, '~' 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.
*/
if (sub[0] == '\\' && sub[1] == '=')
{
p = vim_strsave(sub);
vim_free(sub);
if (p == NULL)
return;
sub = p;
}
else
{
p = regtilde(sub, magic_isset());
if (p != sub)
{
vim_free(sub);
sub = p;
}
}
/*
* Check for a match on each line.
*/
line2 = eap->line2;
for (lnum = eap->line1; lnum <= line2 && !(got_quit
#if defined(FEAT_EVAL)
|| aborting()
#endif
); ++lnum)
{
nmatch = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
(colnr_T)0, NULL);
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;
int len, copy_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;
linenr_T sub_firstlnum; // nr of first sub line
#ifdef FEAT_PROP_POPUP
int apc_flags = APC_SAVE_FOR_UNDO | APC_SUBSTITUTE;
colnr_T total_added = 0;
int text_prop_count = 0;
#endif
/*
* The new text is build up step by step, to avoid too much
* copying. There are these pieces:
* sub_firstline The old text, unmodified.
* 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 found the start of
* the match. Can be below the line we searched
* when there is a \n before a \zs in the
* pattern.
* 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 length 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_firstlnum = lnum;
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 (;;)
{
// Advance "lnum" to the line where the match starts. The
// match does not start in the first line when there is a line
// break before \zs.
if (regmatch.startpos[0].lnum > 0)
{
lnum += regmatch.startpos[0].lnum;
sub_firstlnum += regmatch.startpos[0].lnum;
nmatch -= regmatch.startpos[0].lnum;
VIM_CLEAR(sub_firstline);
}
// Match might be after the last line for "\n\zs" matching at
// the end of the last line.
if (lnum > curbuf->b_ml.ml_line_count)
break;
if (sub_firstline == NULL)
{
sub_firstline = vim_strsave(ml_get(sub_firstlnum));
if (sub_firstline == NULL)
{
vim_free(new_start);
goto outofmem;
}
}
// 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
{
// search for a match at next column
if (has_mbyte)
matchcol += mb_ptr2len(sub_firstline + matchcol);
else
++matchcol;
}
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_count is set only increase the counter.
* If do_ask is set, ask for confirmation.
*/
if (subflags.do_count)
{
// 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 = (colnr_T)STRLEN(sub_firstline);
nmatch = 1;
skip_match = TRUE;
}
sub_nsubs++;
did_sub = TRUE;
#ifdef FEAT_EVAL
// Skip the substitution, unless an expression is used,
// then it is evaluated in the sandbox.
if (!(sub[0] == '\\' && sub[1] == '='))
#endif
goto skip;
}
if (subflags.do_ask)
{
int typed = 0;
// change State to MODE_CONFIRM, so that the mouse works
// properly
save_State = State;
State = MODE_CONFIRM;
setmouse(); // disable mouse in xterm
curwin->w_cursor.col = regmatch.startpos[0].col;
if (curwin->w_p_crb)
do_check_cursorbind();
// 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 (subflags.do_ask)
{
if (exmode_active)
{
char_u *resp;
colnr_T sc, ec;
print_line_no_prefix(lnum,
subflags.do_number, subflags.do_list);
getvcol(curwin, &curwin->w_cursor, &sc, NULL, NULL);
curwin->w_cursor.col = regmatch.endpos[0].col - 1;
if (curwin->w_cursor.col < 0)
curwin->w_cursor.col = 0;
getvcol(curwin, &curwin->w_cursor, NULL, NULL, &ec);
curwin->w_cursor.col = regmatch.startpos[0].col;
if (subflags.do_number || curwin->w_p_nu)
{
int numw = number_width(curwin) + 1;
sc += numw;
ec += numw;
}
msg_start();
for (i = 0; i < (long)sc; ++i)
msg_putchar(' ');
for ( ; i <= (long)ec; ++i)
msg_putchar('^');
resp = getexmodeline('?', NULL, 0, TRUE);
if (resp != NULL)
{
typed = *resp;
vim_free(resp);
// When ":normal" runs out of characters we get
// an empty line. Use "q" to get out of the
// loop.
if (ex_normal_busy && typed == NUL)
typed = 'q';
}
}
else
{
char_u *orig_line = NULL;
int len_change = 0;
int save_p_lz = p_lz;
#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.
int save_RedrawingDisabled = RedrawingDisabled;
RedrawingDisabled = 0;
// avoid calling update_screen() in vgetorpeek()
p_lz = FALSE;
if (new_start != NULL)
{
// There already was a substitution, we would
// like to show this to the user. We cannot
// really update the line, it would change
// what matches. Temporarily replace the line
// and change it back afterwards.
orig_line = vim_strsave(ml_get(lnum));
if (orig_line != NULL)
{
char_u *new_line = concat_str(new_start,
sub_firstline + copycol);
if (new_line == NULL)
VIM_CLEAR(orig_line);
else
{
// Position the cursor relative to the
// end of the line, the previous
// substitute may have inserted or
// deleted characters before the
// cursor.
len_change = (int)STRLEN(new_line)
- (int)STRLEN(orig_line);
curwin->w_cursor.col += len_change;
ml_replace(lnum, new_line, FALSE);
}
}
}
search_match_lines = regmatch.endpos[0].lnum
- regmatch.startpos[0].lnum;
search_match_endcol = regmatch.endpos[0].col
+ len_change;
if (search_match_lines == 0
&& search_match_endcol == 0)
// highlight at least one character for /^/
search_match_endcol = 1;
highlight_match = TRUE;
update_topline();
validate_cursor();
update_screen(UPD_SOME_VALID);
highlight_match = FALSE;
redraw_later(UPD_SOME_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),
_("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 = save_RedrawingDisabled;
#ifdef USE_ON_FLY_SCROLL
dont_scroll = FALSE; // allow scrolling here
#endif
++no_mapping; // don't map this key
++allow_keys; // allow special keys
typed = plain_vgetc();
--allow_keys;
--no_mapping;
// clear the question
msg_didout = FALSE; // don't scroll up
msg_col = 0;
gotocmdline(TRUE);
p_lz = save_p_lz;
// restore the line
if (orig_line != NULL)
ml_replace(lnum, orig_line, FALSE);
}
need_wait_return = FALSE; // no hit-return prompt
if (typed == 'q' || typed == ESC || typed == Ctrl_C
#ifdef UNIX
|| typed == intr_char
#endif
)
{
got_quit = TRUE;
break;
}
if (typed == 'n')
break;
if (typed == 'y')
break;
if (typed == 'l')
{
// last: replace and then stop
subflags.do_all = FALSE;
line2 = lnum;
break;
}
if (typed == 'a')
{
subflags.do_ask = FALSE;
break;
}
if (typed == Ctrl_E)
scrollup_clamp();
else if (typed == Ctrl_Y)
scrolldown_clamp();
}
State = save_State;
setmouse();
if (vim_strchr(p_cpo, CPO_UNDO) != NULL)
--no_u_sync;
if (typed == '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" and ":%s/\n/,\r/gc"
// get stuck when pressing 'n'.
if (nmatch > 1)
{
matchcol = (colnr_T)STRLEN(sub_firstline);
skip_match = TRUE;
}
goto skip;
}
if (got_quit)
goto skip;
}
// 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.
*/
#ifdef FEAT_EVAL
save_ma = curbuf->b_p_ma;
save_sandbox = sandbox;
if (subflags.do_count)
{
// prevent accidentally changing the buffer by a function
curbuf->b_p_ma = FALSE;
sandbox++;
}
// Save flags for recursion. They can change for e.g.
// :s/^/\=execute("s#^##gn")
subflags_save = subflags;
// Disallow changing text or switching window in an expression.
++textlock;
#endif
// Get length of substitution part, including the NUL.
// When it fails sublen is zero.
sublen = vim_regsub_multi(&regmatch,
sub_firstlnum - regmatch.startpos[0].lnum,
sub, sub_firstline, 0,
REGSUB_BACKSLASH
| (magic_isset() ? REGSUB_MAGIC : 0));
#ifdef FEAT_EVAL
--textlock;
// If getting the substitute string caused an error, don't do
// the replacement.
// Don't keep flags set by a recursive call.
subflags = subflags_save;
if (sublen == 0 || aborting() || subflags.do_count)
{
curbuf->b_p_ma = save_ma;
sandbox = save_sandbox;
goto skip;
}
#endif
// When the match included the "$" of the last line it may
// go beyond the last line of the buffer.
if (nmatch > curbuf->b_ml.ml_line_count - sub_firstlnum + 1)
{
nmatch = curbuf->b_ml.ml_line_count - sub_firstlnum + 1;
skip_match = TRUE;
// safety check
if (nmatch < 0)
goto skip;
}
// 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
// Adjust text properties here, since we have all information
// needed.
if (nmatch == 1)
{
p1 = sub_firstline;
#ifdef FEAT_PROP_POPUP
if (curbuf->b_has_textprop)
{
int bytes_added = sublen - 1 - (regmatch.endpos[0].col
- regmatch.startpos[0].col);
// When text properties are changed, need to save for
// undo first, unless done already.
if (adjust_prop_columns(lnum,
total_added + regmatch.startpos[0].col,
bytes_added, apc_flags))
apc_flags &= ~APC_SAVE_FOR_UNDO;
// Offset for column byte number of the text property
// in the resulting buffer afterwards.
total_added += bytes_added;
}
#endif
}
else
{
linenr_T lastlnum = sub_firstlnum + nmatch - 1;
#ifdef FEAT_PROP_POPUP
if (curbuf->b_has_textprop)
{
char_u *prop_start;
// Props in the first line may be shortened or deleted
if (adjust_prop_columns(lnum,
total_added + regmatch.startpos[0].col,
-MAXCOL, apc_flags))
apc_flags &= ~APC_SAVE_FOR_UNDO;
total_added -= (colnr_T)STRLEN(
sub_firstline + regmatch.startpos[0].col);
// Props in the last line may be moved or deleted
if (adjust_prop_columns(lastlnum,
0, -regmatch.endpos[0].col, apc_flags))
// When text properties are changed, need to save
// for undo first, unless done already.
apc_flags &= ~APC_SAVE_FOR_UNDO;
// Copy the text props of the last line, they will be
// later appended to the changed line.
text_prop_count = get_text_props(curbuf, lastlnum,
&prop_start, FALSE);
if (text_prop_count > 0)
{
// TODO: what when we already did this?
vim_free(text_props);
text_props = ALLOC_MULT(textprop_T,
text_prop_count);
if (text_props != NULL)
{
int pi;
mch_memmove(text_props, prop_start,
text_prop_count * sizeof(textprop_T));
// After joining the text prop columns will
// increase.
for (pi = 0; pi < text_prop_count; ++pi)
text_props[pi].tp_col +=
regmatch.startpos[0].col + sublen - 1;
}
}
}
#endif
p1 = ml_get(lastlnum);
nmatch_tl += nmatch - 1;
#ifdef FEAT_PROP_POPUP
if (curbuf->b_has_textprop)
total_added += (colnr_T)STRLEN(
p1 + regmatch.endpos[0].col);
#endif
}
copy_len = regmatch.startpos[0].col - copycol;
needed_len = copy_len + ((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(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 > (int)new_start_len)
{
new_start_len = needed_len + 50;
if ((p1 = alloc(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)copy_len);
new_end += copy_len;
if ((int)new_start_len - copy_len < sublen)
sublen = new_start_len - copy_len - 1;
#ifdef FEAT_EVAL
++textlock;
#endif
(void)vim_regsub_multi(&regmatch,
sub_firstlnum - regmatch.startpos[0].lnum,
sub, new_end, sublen,
REGSUB_COPY | REGSUB_BACKSLASH
| (magic_isset() ? REGSUB_MAGIC : 0));
#ifdef FEAT_EVAL
--textlock;
#endif
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
subflags.do_all = FALSE;
}
// Remember next character to be copied.
copycol = regmatch.endpos[0].col;
if (skip_match)
{
// Already hit end of the buffer, sub_firstlnum is one
// less than what it ought to be.
vim_free(sub_firstline);
sub_firstline = vim_strsave((char_u *)"");
copycol = 0;
}
/*
* 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
{
STRMOVE(p1, p1 + 1);
#ifdef FEAT_PROP_POPUP
if (curbuf->b_has_textprop)
{
// When text properties are changed, need to save
// for undo first, unless done already.
if (adjust_prop_columns(lnum,
(colnr_T)(p1 - new_start), -1,
apc_flags))
apc_flags &= ~APC_SAVE_FOR_UNDO;
}
#endif
}
else if (*p1 == CAR)
{
if (u_inssub(lnum) == OK) // prepare for undo
{
colnr_T plen = (colnr_T)(p1 - new_start + 1);
*p1 = NUL; // truncate up to the CR
ml_append(lnum - 1, new_start, plen, FALSE);
mark_adjust(lnum + 1, (linenr_T)MAXLNUM, 1L, 0L);
if (subflags.do_ask)
appended_lines(lnum - 1, 1L);
else
{
if (first_line == 0)
first_line = lnum;
last_line = lnum + 1;
}
#ifdef FEAT_PROP_POPUP
adjust_props_for_split(lnum + 1, lnum,
plen, 1, FALSE);
#endif
// all line numbers increase
++sub_firstlnum;
++lnum;
++line2;
// move the cursor to the new line, like Vi
++curwin->w_cursor.lnum;
// copy the rest
STRMOVE(new_start, p1 + 1);
p1 = new_start - 1;
}
}
else if (has_mbyte)
p1 += (*mb_ptr2len)(p1) - 1;
}
/*
* 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. "lnum" can be below
// "line2" when there is a \zs in the pattern after a line
// break.
lastone = (skip_match
|| got_int
|| got_quit
|| lnum > line2
|| !(subflags.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 the match starts below where we start searching also
* need to replace the line first (using \zs after \n).
*/
if (lastone
|| nmatch_tl > 0
|| (nmatch = vim_regexec_multi(&regmatch, curwin,
curbuf, sub_firstlnum,
matchcol, NULL)) == 0
|| regmatch.startpos[0].lnum > 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);
#ifdef FEAT_PROP_POPUP
if (text_props != NULL)
add_text_props(lnum, text_props, text_prop_count);
#endif
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);
mark_adjust(lnum, lnum + nmatch_tl - 1,
(long)MAXLNUM, -nmatch_tl);
if (subflags.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 (subflags.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, NULL);
/*
* 5. break if there isn't another match in this line
*/
if (nmatch <= 0)
{
// If the match found didn't start where we were
// searching, do the next search in the line where we
// found the match.
if (nmatch == -1)
lnum -= regmatch.startpos[0].lnum;
break;
}
}
line_breakcheck();
}
if (did_sub)
++sub_nlines;
vim_free(new_start); // for when substitute was cancelled
VIM_CLEAR(sub_firstline); // free the copy of the original line
}
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
#ifdef FEAT_PROP_POPUP
vim_free(text_props);
#endif
// ":s/pat//n" doesn't move the cursor
if (subflags.do_count)
curwin->w_cursor = old_cursor;
if (sub_nsubs > start_nsubs)
{
if ((cmdmod.cmod_flags & CMOD_LOCKMARKS) == 0)
{
// 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)
{
// when interactive leave cursor on the match
if (!subflags.do_ask)
{
if (endcolumn)
coladvance((colnr_T)MAXCOL);
else
beginline(BL_WHITE | BL_FIX);
}
if (!do_sub_msg(subflags.do_count) && subflags.do_ask)
msg("");
}
else
global_need_beginline = TRUE;
if (subflags.do_print)
print_line(curwin->w_cursor.lnum,
subflags.do_number, subflags.do_list);
}
else if (!global_busy)
{
if (got_int) // interrupted
emsg(_(e_interrupted));
else if (got_match) // did find something but nothing substituted
msg("");
else if (subflags.do_error) // nothing found
semsg(_(e_pattern_not_found_str), get_search_pat());
}
#ifdef FEAT_FOLDING
if (subflags.do_ask && hasAnyFolding(curwin))
// Cursor position may require updating
changed_window_setting();
#endif
vim_regfree(regmatch.regprog);
vim_free(sub);
// Restore the flag values, they can be used for ":&&".
subflags.do_all = save_do_all;
subflags.do_ask = save_do_ask;
}
/*
* Give message for number of substitutions.
* Can also be used after a ":global" command.
* Return TRUE if a message was given.
*/
int
do_sub_msg(
int count_only) // used 'n' flag for ":s"
{
/*
* 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))
|| count_only)
&& messaging())
{
char *msg_single;
char *msg_plural;
if (got_int)
STRCPY(msg_buf, _("(Interrupted) "));
else
*msg_buf = NUL;
msg_single = count_only
? NGETTEXT("%ld match on %ld line",
"%ld matches on %ld line", sub_nsubs)
: NGETTEXT("%ld substitution on %ld line",
"%ld substitutions on %ld line", sub_nsubs);
msg_plural = count_only
? NGETTEXT("%ld match on %ld lines",
"%ld matches on %ld lines", sub_nsubs)
: NGETTEXT("%ld substitution on %ld lines",
"%ld substitutions on %ld lines", sub_nsubs);
vim_snprintf_add(msg_buf, sizeof(msg_buf),
NGETTEXT(msg_single, msg_plural, sub_nlines),
sub_nsubs, (long)sub_nlines);
if (msg(msg_buf))
// save message to display it after redraw
set_keep_msg((char_u *)msg_buf, 0);
return TRUE;
}
if (got_int)
{
emsg(_(e_interrupted));
return TRUE;
}
return FALSE;
}
static void
global_exe_one(char_u *cmd, linenr_T lnum)
{
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);
}
/*
* 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(exarg_T *eap)
{
linenr_T lnum; // line number according to old situation
int ndone = 0;
int type; // first char of cmd: 'v' or 'g'
char_u *cmd; // command argument
char_u delim; // delimiter, normally '/'
char_u *pat;
char_u *used_pat;
regmmatch_T regmatch;
int match;
int which_pat;
// When nesting the command works on one line. This allows for
// ":g/found/v/notfound/command".
if (global_busy && (eap->line1 != 1
|| eap->line2 != curbuf->b_ml.ml_line_count))
{
// will increment global_busy to break out of the loop
emsg(_(e_cannot_do_global_recursive_with_range));
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
#ifdef FEAT_EVAL
if (in_vim9script() && check_global_and_subst(eap->cmd, eap->arg) == FAIL)
return;
#endif
/*
* 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_should_be_followed_by));
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(_(e_regular_expression_missing_from_global));
return;
}
else if (check_regexp_delim(*cmd) == FAIL)
{
return;
}
else
{
delim = *cmd; // get the delimiter
++cmd; // skip delimiter if there is one
pat = cmd; // remember start of pattern
cmd = skip_regexp_ex(cmd, delim, magic_isset(), &eap->arg, NULL, NULL);
if (cmd[0] == delim) // end delimiter found
*cmd++ = NUL; // replace it with a NUL
}
if (search_regcomp(pat, &used_pat, RE_BOTH, which_pat, SEARCH_HIS,
&regmatch) == FAIL)
{
emsg(_(e_invalid_command));
return;
}
if (global_busy)
{
lnum = curwin->w_cursor.lnum;
match = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
(colnr_T)0, NULL);
if ((type == 'g' && match) || (type == 'v' && !match))
global_exe_one(cmd, lnum);
}
else
{
/*
* pass 1: set marks for each (not) matching line
*/
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, NULL);
if (regmatch.regprog == NULL)
break; // re-compiling regprog failed
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_interrupted));
else if (ndone == 0)
{
if (type == 'v')
{
if (in_vim9script())
semsg(_(e_pattern_found_in_every_line_str), used_pat);
else
smsg(_("Pattern found in every line: %s"), used_pat);
}
else
{
if (in_vim9script())
semsg(_(e_pattern_not_found_str), used_pat);
else
smsg(_("Pattern not found: %s"), used_pat);
}
}
else
{
#ifdef FEAT_CLIPBOARD
start_global_changes();
#endif
global_exe(cmd);
#ifdef FEAT_CLIPBOARD
end_global_changes();
#endif
}
ml_clearmarked(); // clear rest of the marks
}
vim_regfree(regmatch.regprog);
}
/*
* Execute "cmd" on lines marked with ml_setmarked().
*/
void
global_exe(char_u *cmd)
{
linenr_T old_lcount; // b_ml.ml_line_count before the command
buf_T *old_buf = curbuf; // remember what buffer we started in
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;
sub_nsubs = 0;
sub_nlines = 0;
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)
{
global_exe_one(cmd, lnum);
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 substitutes done, report number of substitutes, otherwise report
// number of extra or deleted lines.
// Don't report extra or deleted lines in the edge case where the buffer
// we are in after execution is different from the buffer we started in.
if (!do_sub_msg(FALSE) && curbuf == old_buf)
msgmore(curbuf->b_ml.ml_line_count - old_lcount);
}
#ifdef FEAT_VIMINFO
/*
* Get the previous substitute pattern.
*/
char_u *
get_old_sub(void)
{
return old_sub;
}
/*
* Set the previous substitute pattern. "val" must be allocated.
*/
void
set_old_sub(char_u *val)
{
vim_free(old_sub);
old_sub = val;
}
#endif // FEAT_VIMINFO
#if defined(EXITFREE) || defined(PROTO)
void
free_old_sub(void)
{
vim_free(old_sub);
}
#endif
#if defined(FEAT_QUICKFIX) || defined(PROTO)
/*
* Set up for a tagpreview.
* Makes the preview window the current window.
* Return TRUE when it was created.
*/
int
prepare_tagpreview(
int undo_sync, // sync undo when leaving the window
int use_previewpopup, // use popup if 'previewpopup' set
use_popup_T use_popup) // use other popup window
{
win_T *wp;
# ifdef FEAT_GUI
need_mouse_correct = TRUE;
# endif
if (curwin->w_p_pvw)
return FALSE;
/*
* If there is already a preview window open, use that one.
*/
# ifdef FEAT_PROP_POPUP
if (use_previewpopup && *p_pvp != NUL)
{
wp = popup_find_preview_window();
if (wp != NULL)
popup_set_wantpos_cursor(wp, wp->w_minwidth, NULL);
}
else if (use_popup != USEPOPUP_NONE)
{
wp = popup_find_info_window();
if (wp != NULL)
{
if (use_popup == USEPOPUP_NORMAL)
popup_show(wp);
else
popup_hide(wp);
// When the popup moves or resizes it may reveal part of
// another window. TODO: can this be done more efficiently?
redraw_all_later(UPD_NOT_VALID);
}
}
else
# endif
{
FOR_ALL_WINDOWS(wp)
if (wp->w_p_pvw)
break;
}
if (wp != NULL)
{
win_enter(wp, undo_sync);
return FALSE;
}
/*
* There is no preview window open yet. Create one.
*/
# ifdef FEAT_PROP_POPUP
if ((use_previewpopup && *p_pvp != NUL)
|| use_popup != USEPOPUP_NONE)
return popup_create_preview_window(use_popup != USEPOPUP_NONE);
# endif
if (win_split(g_do_tagpreview > 0 ? g_do_tagpreview : 0, 0) == FAIL)
return FALSE;
curwin->w_p_pvw = TRUE;
curwin->w_p_wfh = TRUE;
RESET_BINDING(curwin); // don't take over 'scrollbind'
// and 'cursorbind'
# ifdef FEAT_DIFF
curwin->w_p_diff = FALSE; // no 'diff'
# endif
# ifdef FEAT_FOLDING
curwin->w_p_fdc = 0; // no 'foldcolumn'
# endif
return TRUE;
}
#endif
/*
* Make the user happy.
*/
void
ex_smile(exarg_T *eap UNUSED)
{
static char *code[] = {
"\34 \4o\14$\4ox\30 \2o\30$\1ox\25 \2o\36$\1o\11 \1o\1$\3 \2$\1 \1o\1$x\5 \1o\1 \1$\1 \2o\10 \1o\44$\1o\7 \2$\1 \2$\1 \2$\1o\1$x\2 \2o\1 \1$\1 \1$\1 \1\"\1$\6 \1o\11$\4 \15$\4 \11$\1o\7 \3$\1o\2$\1o\1$x\2 \1\"\6$\1o\1$\5 \1o\11$\6 \13$\6 \12$\1o\4 \10$x\4 \7$\4 \13$\6 \13$\6 \27$x\4 \27$\4 \15$\4 \16$\2 \3\"\3$x\5 \1\"\3$\4\"\61$\5 \1\"\3$x\6 \3$\3 \1o\62$\5 \1\"\3$\1ox\5 \1o\2$\1\"\3 \63$\7 \3$\1ox\5 \3$\4 \55$\1\"\1 \1\"\6$",
"\5o\4$\1ox\4 \1o\3$\4o\5$\2 \45$\3 \1o\21$x\4 \10$\1\"\4$\3 \42$\5 \4$\10\"x\3 \4\"\7 \4$\4 \1\"\34$\1\"\6 \1o\3$x\16 \1\"\3$\1o\5 \3\"\22$\1\"\2$\1\"\11 \3$x\20 \3$\1o\12 \1\"\2$\2\"\6$\4\"\13 \1o\3$x\21 \4$\1o\40 \1o\3$\1\"x\22 \1\"\4$\1o\6 \1o\6$\1o\1\"\4$\1o\10 \1o\4$x\24 \1\"\5$\2o\5 \2\"\4$\1o\5$\1o\3 \1o\4$\2\"x\27 \2\"\5$\4o\2 \1\"\3$\1o\11$\3\"x\32 \2\"\7$\2o\1 \12$x\42 \4\"\13$x\46 \14$x\47 \12$\1\"x\50 \1\"\3$\4\"x"
};
char *p;
int n;
int i;
msg_start();
msg_putchar('\n');
for (i = 0; i < 2; ++i)
for (p = code[i]; *p != NUL; ++p)
if (*p == 'x')
msg_putchar('\n');
else
for (n = *p++; n > 0; --n)
if (*p == 'o' || *p == '$')
msg_putchar_attr(*p, HL_ATTR(HLF_L));
else
msg_putchar(*p);
msg_clr_eos();
}
/*
* ":drop"
* Opens the first argument in a window. When there are two or more arguments
* the argument list is redefined.
*/
void
ex_drop(exarg_T *eap)
{
int split = FALSE;
win_T *wp;
buf_T *buf;
tabpage_T *tp;
if (ERROR_IF_POPUP_WINDOW || ERROR_IF_TERM_POPUP_WINDOW)
return;
/*
* 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.
*/
set_arglist(eap->arg);
/*
* Expanding wildcards may result in an empty argument list. E.g. when
* editing "foo.pyc" and ".pyc" is in 'wildignore'. Assume that we
* already did an error message for this.
*/
if (ARGCOUNT == 0)
return;
if (cmdmod.cmod_tab)
{
// ":tab drop file ...": open a tab for each argument that isn't
// edited in a window yet. It's like ":tab all" but without closing
// windows or tabs.
ex_all(eap);
return;
}
// ":drop file ...": Edit the first argument. Jump to an existing
// window if possible, edit in current window if the current buffer
// can be abandoned, otherwise open a new window.
buf = buflist_findnr(ARGLIST[0].ae_fnum);
FOR_ALL_TAB_WINDOWS(tp, wp)
{
if (wp->w_buffer == buf)
{
goto_tabpage_win(tp, wp);
curwin->w_arg_idx = 0;
if (!bufIsChanged(curbuf))
{
int save_ar = curbuf->b_p_ar;
// reload the file if it is newer
curbuf->b_p_ar = TRUE;
buf_check_timestamp(curbuf, FALSE);
curbuf->b_p_ar = save_ar;
}
return;
}
}
/*
* 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 (!buf_hide(curbuf))
{
++emsg_off;
split = check_changed(curbuf, CCGD_AW | CCGD_EXCMD);
--emsg_off;
}
// Fake a ":sfirst" or ":first" command edit the first argument.
if (split)
{
eap->cmdidx = CMD_sfirst;
eap->cmd[0] = 's';
}
else
eap->cmdidx = CMD_first;
ex_rewind(eap);
}
/*
* Skip over the pattern argument of ":vimgrep /pat/[g][j]".
* Put the start of the pattern in "*s", unless "s" is NULL.
* If "flags" is not NULL put the flags in it: VGR_GLOBAL, VGR_NOJUMP.
* If "s" is not NULL terminate the pattern with a NUL.
* Return a pointer to the char just past the pattern plus flags.
*/
char_u *
skip_vimgrep_pat(char_u *p, char_u **s, int *flags)
{
return skip_vimgrep_pat_ext(p, s, flags, NULL, NULL);
}
/*
* As skip_vimgrep_pat() and store the character overwritten by NUL in "cp"
* and the pointer to it in "nulp".
*/
char_u *
skip_vimgrep_pat_ext(char_u *p, char_u **s, int *flags, char_u **nulp, int *cp)
{
int c;
if (vim_isIDc(*p))
{
// ":vimgrep pattern fname"
if (s != NULL)
*s = p;
p = skiptowhite(p);
if (s != NULL && *p != NUL)
{
if (nulp != NULL)
{
*nulp = p;
*cp = *p;
}
*p++ = NUL;
}
}
else
{
// ":vimgrep /pattern/[g][j] fname"
if (s != NULL)
*s = p + 1;
c = *p;
p = skip_regexp(p + 1, c, TRUE);
if (*p != c)
return NULL;
// Truncate the pattern.
if (s != NULL)
{
if (nulp != NULL)
{
*nulp = p;
*cp = *p;
}
*p = NUL;
}
++p;
// Find the flags
while (*p == 'g' || *p == 'j' || *p == 'f')
{
if (flags != NULL)
{
if (*p == 'g')
*flags |= VGR_GLOBAL;
else if (*p == 'j')
*flags |= VGR_NOJUMP;
else
*flags |= VGR_FUZZY;
}
++p;
}
}
return p;
}
#if defined(FEAT_EVAL) || defined(PROTO)
/*
* List v:oldfiles in a nice way.
*/
void
ex_oldfiles(exarg_T *eap UNUSED)
{
list_T *l = get_vim_var_list(VV_OLDFILES);
listitem_T *li;
int nr = 0;
char_u *fname;
if (l == NULL)
{
msg(_("No old files"));
return;
}
msg_start();
msg_scroll = TRUE;
for (li = l->lv_first; li != NULL && !got_int; li = li->li_next)
{
++nr;
fname = tv_get_string(&li->li_tv);
if (!message_filtered(fname))
{
msg_outnum((long)nr);
msg_puts(": ");
msg_outtrans(fname);
msg_clr_eos();
msg_putchar('\n');
out_flush(); // output one line at a time
ui_breakcheck();
}
}
// Assume "got_int" was set to truncate the listing.
got_int = FALSE;
# ifdef FEAT_BROWSE_CMD
if (cmdmod.cmod_flags & CMOD_BROWSE)
{
quit_more = FALSE;
nr = prompt_for_number(FALSE);
msg_starthere();
if (nr > 0)
{
char_u *p = list_find_str(get_vim_var_list(VV_OLDFILES),
(long)nr);
if (p != NULL)
{
p = expand_env_save(p);
eap->arg = p;
eap->cmdidx = CMD_edit;
cmdmod.cmod_flags &= ~CMOD_BROWSE;
do_exedit(eap, NULL);
vim_free(p);
}
}
}
# endif
}
#endif
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