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gerrit.omnirom.org / android_external_vim / 414b79662786762256e756ece8ab4aaecbbf9bd1 / . / src / ex_cmds.c
blob: f92537862f2de8c2970e4a36cba49f809664205f [file] [log] [blame]
/* 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"
#ifdef FEAT_FLOAT
# include <float.h>
#endif
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);
static int help_compare(const void *s1, const void *s2);
static void prepare_help_buffer(void);
/*
* ":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 < ' '
#ifndef EBCDIC
|| c > '~'
#endif
))
{
transchar_nonprint(buf3, c);
vim_snprintf(buf1, sizeof(buf1), " <%s>", (char *)buf3);
}
else
buf1[0] = NUL;
#ifndef EBCDIC
if (c >= 0x80)
vim_snprintf(buf2, sizeof(buf2), " <M-%s>",
(char *)transchar(c & 0x7f));
else
#endif
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(line); // get line length
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_ic; // ignore case
static int sort_nr; // sort on number
static int sort_rx; // sort on regex instead of skipping it
#ifdef FEAT_FLOAT
static int sort_flt; // sort on floating number
#endif
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;
#ifdef FEAT_FLOAT
float_T value_flt; // value if sorting by float
#endif
} st_u;
} sorti_T;
static int sort_compare(const void *s1, const void *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;
}
#ifdef FEAT_FLOAT
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;
#endif
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 = sort_ic ? STRICMP(sortbuf1, sortbuf2)
: STRCMP(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_rx = sort_nr = 0;
#ifdef FEAT_FLOAT
sort_flt = 0;
#endif
for (p = eap->arg; *p != NUL; ++p)
{
if (VIM_ISWHITE(*p))
;
else if (*p == 'i')
sort_ic = TRUE;
else if (*p == 'r')
sort_rx = TRUE;
else if (*p == 'n')
{
sort_nr = 1;
++format_found;
}
#ifdef FEAT_FLOAT
else if (*p == 'f')
{
sort_flt = 1;
++format_found;
}
#endif
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 (check_nextcmd(p) != NULL)
{
eap->nextcmd = check_nextcmd(p);
break;
}
else if (!ASCII_ISALPHA(*p) && regmatch.regprog == NULL)
{
s = skip_regexp(p + 1, *p, TRUE, NULL);
if (*s != *p)
{
emsg(_(e_invalpat));
goto sortend;
}
*s = NUL;
// Use last search pattern if sort pattern is empty.
if (s == p + 1)
{
if (last_search_pat() == NULL)
{
emsg(_(e_noprevre));
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_invarg2), p);
goto sortend;
}
}
// Can only have one of 'n', 'b', 'o' and 'x'.
if (format_found > 1)
{
emsg(_(e_invarg));
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
#ifdef FEAT_FLOAT
|| sort_flt
#endif
)
{
// 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);
}
}
#ifdef FEAT_FLOAT
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);
}
#endif
*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
|| (sort_ic ? STRICMP(s, sortbuf1) : STRCMP(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, FALSE);
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_interr));
}
/*
* :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(_("E134: Cannot move a 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.lockmarks)
{
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.lockmarks)
{
curbuf->b_op_start.lnum = dest + 1;
curbuf->b_op_end.lnum = dest + num_lines;
}
}
if (!cmdmod.lockmarks)
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(line1 + extra, TRUE);
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.lockmarks)
{
curbuf->b_op_start.lnum = n + 1;
curbuf->b_op_end.lnum = n + count;
curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
}
/*
* there are three situations:
* 1. destination is above line1
* 2. destination is between line1 and line2
* 3. destination is below line2
*
* n = destination (when starting)
* curwin->w_cursor.lnum = destination (while copying)
* line1 = start of source (while copying)
* line2 = end of source (while copying)
*/
if (u_save(n, n + 1) == FAIL)
return;
curwin->w_cursor.lnum = n;
while (line1 <= line2)
{
// need to use vim_strsave() because the line will be unlocked within
// ml_append()
p = vim_strsave(ml_get(line1));
if (p != NULL)
{
ml_append(curwin->w_cursor.lnum, p, (colnr_T)0, FALSE);
vim_free(p);
}
// situation 2: skip already copied lines
if (line1 == n)
line1 = curwin->w_cursor.lnum;
++line1;
if (curwin->w_cursor.lnum < line1)
++line1;
if (curwin->w_cursor.lnum < line2)
++line2;
++curwin->w_cursor.lnum;
}
appended_lines_mark(n, count);
msgmore((long)count);
}
static char_u *prevcmd = NULL; // the previous command
#if defined(EXITFREE) || defined(PROTO)
void
free_prev_shellcmd(void)
{
vim_free(prevcmd);
}
#endif
/*
* 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;
trailarg = arg;
do
{
len = (int)STRLEN(trailarg) + 1;
if (newcmd != NULL)
len += (int)STRLEN(newcmd);
if (ins_prevcmd)
{
if (prevcmd == NULL)
{
emsg(_(e_noprev));
vim_free(newcmd);
return;
}
len += (int)STRLEN(prevcmd);
}
if ((t = alloc(len)) == NULL)
{
vim_free(newcmd);
return;
}
*t = NUL;
if (newcmd != NULL)
STRCAT(t, newcmd);
if (ins_prevcmd)
STRCAT(t, prevcmd);
p = t + STRLEN(t);
STRCAT(t, trailarg);
vim_free(newcmd);
newcmd = t;
/*
* Scan the rest of the argument for '!', which is replaced by the
* previous command. "\!" is replaced by "!" (this is vi compatible).
*/
trailarg = NULL;
while (*p)
{
if (*p == '!')
{
if (p > newcmd && p[-1] == '\\')
STRMOVE(p - 1, p);
else
{
trailarg = p;
*trailarg++ = NUL;
ins_prevcmd = TRUE;
break;
}
}
++p;
}
} while (trailarg != NULL);
vim_free(prevcmd);
prevcmd = newcmd;
if (bangredo) // put cmd in redo buffer for ! command
{
// 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)
{
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);
}
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_lockmarks = cmdmod.lockmarks;
#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.lockmarks = 0;
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_notmp));
goto filterend;
}
/*
* The writing and reading of temp files will not be shown.
* Vi also doesn't do this and the messages are not very informative.
*/
++no_wait_return; // don't call wait_return() while busy
if (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
(void)semsg(_(e_notcreate), itmp); // will call wait_return
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((linenr_T)(line2), (linenr_T)(line2 + 1)) == FAIL)
{
vim_free(cmd_buf);
goto error;
}
redraw_curbuf_later(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_notread), 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.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
{
// 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.lockmarks = save_lockmarks;
if (curbuf != old_curbuf)
{
--no_wait_return;
emsg(_("E135: *Filter* Autocommands must not change current buffer"));
}
else if (cmdmod.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;
int keep_termcap = FALSE;
#endif
/*
* Disallow shell commands for "rvim".
* Disallow shell commands from .exrc and .vimrc in current directory for
* security reasons.
*/
if (check_restricted() || check_secure())
{
msg_end();
return;
}
#ifdef MSWIN
/*
* Check if ":!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)
{
#ifdef MSWIN
if (!keep_termcap)
#endif
stoptermcap();
}
#ifdef MSWIN
if (!winstart)
#endif
msg_putchar('\n'); // may shift screen one line up
// warning message before calling the shell
if (p_warn && !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
#ifdef MSWIN
if (!keep_termcap) // if keep_termcap is TRUE didn't stop termcap
#endif
starttermcap(); // start termcap if not done by wait_return()
/*
* In an Amiga window redrawing is caused by asking the window size.
* If we got an interrupt this will not work. The chance that the
* window size is wrong is very small, but we need to redraw the
* screen. Don't do this if ':' hit in wait_return(). THIS IS UGLY
* but it saves an extra redraw.
*/
#ifdef AMIGA
if (skip_redraw) // ':' hit in wait_return()
{
if (msg_silent == 0)
redraw_later_clear();
}
else if (term_console)
{
OUT_STR(IF_EB("\033[0 q", ESC_STR "[0 q")); // get window size
if (got_int && msg_silent == 0)
redraw_later_clear(); // if got_int is TRUE, redraw needed
else
must_redraw = 0; // no extra redraw needed
}
#endif
}
// display any error messages now
display_errors();
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;
#if defined(UNIX)
int is_fish_shell;
char_u *shell_name = get_isolated_shell_name();
// Account for fish's different syntax for subshells
is_fish_shell = (fnamecmp(shell_name, "fish") == 0);
vim_free(shell_name);
if (is_fish_shell)
len = (long_u)STRLEN(cmd) + 13; // "begin; " + "; end" + NUL
else
#endif
len = (long_u)STRLEN(cmd) + 3; // "()" + NUL
if (itmp != NULL)
len += (long_u)STRLEN(itmp) + 9; // " { < " + " } "
if (otmp != NULL)
len += (long_u)STRLEN(otmp) + (long_u)STRLEN(p_srr) + 2; // " "
buf = alloc(len);
if (buf == NULL)
return NULL;
#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)
{
STRCAT(buf, " "); // insert a space before the '|' for DOS
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)),
#ifdef FEAT_QUICKFIX
" %s %s",
#else
" %s%s", // " > %s" causes problems on Amiga
#endif
(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.keepalt)
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_invarg));
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);
}
/*
* write current buffer to file 'eap->arg'
* if 'eap->append' is TRUE, append to the file
*
* if *eap->arg == NUL write to current file
*
* return FAIL for failure, OK otherwise
*/
int
do_write(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.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_argreq));
goto theend;
}
other = FALSE;
}
else
{
fname = ffname;
free_fname = fix_fname(ffname);
/*
* When out-of-memory, keep unexpanded file name, because we MUST be
* able to write the file in this situation.
*/
if (free_fname != NULL)
ffname = free_fname;
other = otherfile(ffname);
}
/*
* If we have a new file, put its name in the list of alternate file names.
*/
if (other)
{
if (vim_strchr(p_cpo, CPO_ALTWRITE) != NULL
|| eap->cmdidx == CMD_saveas)
alt_buf = setaltfname(ffname, fname, (linenr_T)1);
else
alt_buf = buflist_findname(ffname);
if (alt_buf != NULL && alt_buf->b_ml.ml_mfp != NULL)
{
// Overwriting a file that is loaded in another buffer is not a
// good idea.
emsg(_(e_bufloaded));
goto theend;
}
}
/*
* Writing to the current file is not allowed in readonly mode
* and a file name is required.
* "nofile" and "nowrite" buffers cannot be written implicitly either.
*/
if (!other && (
#ifdef FEAT_QUICKFIX
bt_dontwrite_msg(curbuf) ||
#endif
check_fname() == FAIL || check_readonly(&eap->forceit, curbuf)))
goto theend;
if (!other)
{
ffname = curbuf->b_ffname;
fname = curbuf->b_fname;
/*
* Not writing the whole file is only allowed with '!'.
*/
if ( (eap->line1 != 1
|| eap->line2 != curbuf->b_ml.ml_line_count)
&& !eap->forceit
&& !eap->append
&& !p_wa)
{
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if (p_confirm || cmdmod.confirm)
{
if (vim_dialog_yesno(VIM_QUESTION, NULL,
(char_u *)_("Write partial file?"), 2) != VIM_YES)
goto theend;
eap->forceit = TRUE;
}
else
#endif
{
emsg(_("E140: Use ! to write partial buffer"));
goto theend;
}
}
}
if (check_overwrite(eap, curbuf, fname, ffname, other) == OK)
{
if (eap->cmdidx == CMD_saveas && alt_buf != NULL)
{
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 other file or b_flags set or not writing the whole file:
* overwriting only allowed with '!'
*/
if ( (other
|| (buf->b_flags & BF_NOTEDITED)
|| ((buf->b_flags & BF_NEW)
&& vim_strchr(p_cpo, CPO_OVERNEW) == NULL)
|| (buf->b_flags & BF_READERR))
&& !p_wa
#ifdef FEAT_QUICKFIX
&& !bt_nofilename(buf)
#endif
&& 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_isadir2), ffname);
return FAIL;
}
#endif
#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
if (p_confirm || cmdmod.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_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.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(_("E768: Swap file exists: %s (: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)
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.browse)
browse_save_fname(buf);
#endif
if (buf->b_ffname == NULL)
{
semsg(_("E141: No file name for buffer %ld"), (long)buf->b_fnum);
++error;
}
else if (check_readonly(&eap->forceit, buf)
|| check_overwrite(eap, buf, buf->b_fname, buf->b_ffname,
FALSE) == FAIL)
{
++error;
}
else
{
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(_("E142: 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.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));
else
semsg(_("E505: \"%s\" is read-only (add ! 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
{
if (other)
--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
* 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 *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;
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.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 = (char_u *)".";
}
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) && (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))))
&& 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.
*/
reset_VIsual();
#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)
{
if (!(flags & ECMD_ADDBUF))
{
if (!cmdmod.keepalt)
curwin->w_alt_fnum = curbuf->b_fnum;
if (oldwin != NULL)
buflist_altfpos(oldwin);
}
if (fnum)
buf = buflist_findnr(fnum);
else
{
if (flags & ECMD_ADDBUF)
{
linenr_T tlnum = 1L;
if (command != NULL)
{
tlnum = atol((char *)command);
if (tlnum <= 0)
tlnum = 1L;
}
(void)buflist_new(ffname, sfname, tlnum, BLN_LISTED);
goto theend;
}
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 (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)
{
/*
* 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);
set_bufref(&au_new_curbuf, buf);
apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf);
if (!bufref_valid(&au_new_curbuf))
{
// new buffer has been deleted
delbuf_msg(new_name); // frees new_name
goto theend;
}
#ifdef FEAT_EVAL
if (aborting()) // autocmds may abort script processing
{
vim_free(new_name);
goto theend;
}
#endif
if (buf == curbuf) // already in new buffer
auto_buf = TRUE;
else
{
win_T *the_curwin = curwin;
// 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);
close_buffer(oldwin, curbuf,
(flags & ECMD_HIDE) ? 0 : DOBUF_UNLOAD, FALSE, FALSE);
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);
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
goto theend;
}
if (buf == curbuf) // already in new buffer
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.br_buf = NULL;
au_new_curbuf.br_buf_free_count = 0;
}
curwin->w_pcmark.lnum = 1;
curwin->w_pcmark.col = 0;
}
else // !other_file
{
if ((flags & ECMD_ADDBUF) || 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 (p_ur < 0 || curbuf->b_ml.ml_line_count <= p_ur)
{
// Save all the text, so that the reload can be undone.
// 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;
/*
* 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 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);
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();
#ifdef FEAT_TITLE
maketitle();
#endif
#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)did_set_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);
#ifdef FEAT_KEYMAP
if (curbuf->b_kmap_state & KEYMAP_INIT)
(void)keymap_init();
#endif
--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(NOT_VALID); // redraw this buffer later
}
if (p_im)
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;
#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(_("E143: Autocommands unexpectedly deleted new buffer %s"),
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);
// 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 = INSERT; // behave like in Insert mode
if (curbuf->b_p_iminsert == B_IMODE_LMAP)
State |= 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, (int)(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 INSERT mode
// when getline() returns.
State = 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);
appended_lines_mark(lnum + (empty ? 1 : 0), 1L);
vim_free(theline);
++lnum;
if (empty)
{
ml_delete(2L, FALSE);
empty = FALSE;
}
}
State = 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 than "start" -- Acevedo
if (!cmdmod.lockmarks)
{
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;
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, FALSE);
}
// 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 = curwin->w_height;
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(_("E144: 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(_("E145: 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_curdir));
return TRUE;
}
#ifdef HAVE_SANDBOX
/*
* In the sandbox more things are not allowed, including the things
* disallowed in secure mode.
*/
if (sandbox != 0)
{
emsg(_(e_sandbox));
return TRUE;
}
#endif
return FALSE;
}
static char_u *old_sub = NULL; // previous substitute pattern
static int global_need_beginline; // call beginline() after ":g"
/*
* 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;
/*
* Perform a substitution from line eap->line1 to line eap->line2 using the
* command pointed to by eap->arg which should be of the form:
*
* /pattern/substitution/{flags}
*
* The usual escapes are supported as described in the regexp docs.
*/
void
do_sub(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 temp;
int which_pat;
char_u *cmd;
int save_State;
linenr_T first_line = 0; // first changed line
linenr_T last_line= 0; // below last changed line AFTER the
// change
linenr_T old_line_count = curbuf->b_ml.ml_line_count;
linenr_T line2;
long nmatch; // number of lines in match
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;
#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 (isalpha(*cmd))
{
emsg(_("E146: Regular expressions can't be delimited by letters"));
return;
}
/*
* undocumented vi feature:
* "\/sub/" and "\?sub?" use last used search pattern (almost like
* //sub/r). "\&sub&" use last substitute pattern (like //sub/).
*/
if (*cmd == '\\')
{
++cmd;
if (vim_strchr((char_u *)"/?&", *cmd) == NULL)
{
emsg(_(e_backslash));
return;
}
if (*cmd != '&')
which_pat = RE_SEARCH; // use last '/' pattern
pat = (char_u *)""; // empty search pattern
delimiter = *cmd++; // remember delimiter character
}
else // find the end of the regexp
{
which_pat = RE_LAST; // use last used regexp
delimiter = *cmd++; // remember delimiter character
pat = cmd; // remember start of search pat
cmd = skip_regexp(cmd, delimiter, p_magic, &eap->arg);
if (cmd[0] == delimiter) // end delimiter found
*cmd++ = NUL; // replace it with a NUL
}
/*
* Small incompatibility: vi sees '\n' as end of the command, but in
* Vim we want to use '\n' to find/substitute a NUL.
*/
sub = cmd; // remember the start of the substitution
while (cmd[0])
{
if (cmd[0] == delimiter) // end delimiter found
{
*cmd++ = NUL; // replace it with a NUL
break;
}
if (cmd[0] == '\\' && cmd[1] != 0) // skip escaped characters
++cmd;
MB_PTR_ADV(cmd);
}
if (!eap->skip)
{
// 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_nopresub));
return;
}
sub = old_sub;
}
else
{
vim_free(old_sub);
old_sub = vim_strsave(sub);
}
}
}
else if (!eap->skip) // use previous pattern and substitution
{
if (old_sub == NULL) // there is no previous command
{
emsg(_(e_nopresub));
return;
}
pat = NULL; // search_regcomp() will use previous pattern
sub = old_sub;
// 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;
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.keeppatterns)
save_re_pat(RE_SUBST, pat, p_magic);
// put pattern in history
add_to_history(HIST_SEARCH, pat, TRUE, NUL);
return;
}
/*
* Find trailing options. When '&' is used, keep old options.
*/
if (*cmd == '&')
++cmd;
else
{
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_zerocount));
return;
}
eap->line1 = eap->line2;
eap->line2 += i - 1;
if (eap->line2 > curbuf->b_ml.ml_line_count)
eap->line2 = curbuf->b_ml.ml_line_count;
}
/*
* check for trailing command or garbage
*/
cmd = skipwhite(cmd);
if (*cmd && *cmd != '"') // if not end-of-line or comment
{
eap->nextcmd = check_nextcmd(cmd);
if (eap->nextcmd == NULL)
{
emsg(_(e_trailing));
return;
}
}
if (eap->skip) // not executing commands, only parsing
return;
if (!subflags.do_count && !curbuf->b_p_ma)
{
// Substitution is not allowed in non-'modifiable' buffer
emsg(_(e_modifiable));
return;
}
if (search_regcomp(pat, RE_SUBST, which_pat, SEARCH_HIS, &regmatch) == FAIL)
{
if (subflags.do_error)
emsg(_(e_invcmd));
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;
/*
* ~ in the substitute pattern is replaced with the old pattern.
* We do it here once to avoid it to be replaced over and over again.
* But don't do it when it starts with "\=", then it's an expression.
*/
if (!(sub[0] == '\\' && sub[1] == '='))
sub = regtilde(sub, p_magic);
/*
* Check for a match on each line.
*/
line2 = eap->line2;
for (lnum = eap->line1; lnum <= line2 && !(got_quit
#if defined(FEAT_EVAL)
|| aborting()
#endif
); ++lnum)
{
nmatch = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
(colnr_T)0, NULL, 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;
#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 CONFIRM, so that the mouse works
// properly
save_State = State;
State = 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);
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);
}
}
else
{
char_u *orig_line = NULL;
int len_change = 0;
#ifdef FEAT_FOLDING
int save_p_fen = curwin->w_p_fen;
curwin->w_p_fen = FALSE;
#endif
// Invert the matched string.
// Remove the inversion afterwards.
temp = RedrawingDisabled;
RedrawingDisabled = 0;
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;
highlight_match = TRUE;
update_topline();
validate_cursor();
update_screen(SOME_VALID);
highlight_match = FALSE;
redraw_later(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 = temp;
#ifdef USE_ON_FLY_SCROLL
dont_scroll = FALSE; // allow scrolling here
#endif
++no_mapping; // don't map this key
++allow_keys; // allow special keys
typed = plain_vgetc();
--allow_keys;
--no_mapping;
// clear the question
msg_didout = FALSE; // don't scroll up
msg_col = 0;
gotocmdline(TRUE);
// 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;
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;
#endif
// get length of substitution part
sublen = vim_regsub_multi(&regmatch,
sub_firstlnum - regmatch.startpos[0].lnum,
sub, sub_firstline, FALSE, p_magic, TRUE);
#ifdef FEAT_EVAL
// 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 (aborting() || subflags.do_count)
{
curbuf->b_p_ma = save_ma;
if (sandbox > 0)
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;
}
// 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
{
p1 = ml_get(sub_firstlnum + nmatch - 1);
nmatch_tl += nmatch - 1;
}
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;
(void)vim_regsub_multi(&regmatch,
sub_firstlnum - regmatch.startpos[0].lnum,
sub, new_end, TRUE, p_magic, TRUE);
sub_nsubs++;
did_sub = TRUE;
// Move the cursor to the start of the line, to avoid that it
// is beyond the end of the line after the substitution.
curwin->w_cursor.col = 0;
// For a multi-line match, make a copy of the last matched
// line and continue in that one.
if (nmatch > 1)
{
sub_firstlnum += nmatch - 1;
vim_free(sub_firstline);
sub_firstline = vim_strsave(ml_get(sub_firstlnum));
// When going beyond the last line, stop substituting.
if (sub_firstlnum <= line2)
do_again = TRUE;
else
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);
#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, 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);
if (nmatch_tl > 0)
{
/*
* Matched lines have now been substituted and are
* useless, delete them. The part after the match
* has been appended to new_start, we don't need
* it in the buffer.
*/
++lnum;
if (u_savedel(lnum, nmatch_tl) != OK)
break;
for (i = 0; i < nmatch_tl; ++i)
ml_delete(lnum, (int)FALSE);
mark_adjust(lnum, lnum + nmatch_tl - 1,
(long)MAXLNUM, -nmatch_tl);
if (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, 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
// ":s/pat//n" doesn't move the cursor
if (subflags.do_count)
curwin->w_cursor = old_cursor;
if (sub_nsubs > start_nsubs)
{
if (!cmdmod.lockmarks)
{
// 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_interr));
else if (got_match) // did find something but nothing substituted
msg("");
else if (subflags.do_error) // nothing found
semsg(_(e_patnotf2), 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);
// 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_interr));
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;
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(_("E147: Cannot do :global recursive with a 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
/*
* undocumented vi feature:
* "\/" and "\?": use previous search pattern.
* "\&": use previous substitute pattern.
*/
if (*cmd == '\\')
{
++cmd;
if (vim_strchr((char_u *)"/?&", *cmd) == NULL)
{
emsg(_(e_backslash));
return;
}
if (*cmd == '&')
which_pat = RE_SUBST; // use previous substitute pattern
else
which_pat = RE_SEARCH; // use previous search pattern
++cmd;
pat = (char_u *)"";
}
else if (*cmd == NUL)
{
emsg(_("E148: Regular expression missing from global"));
return;
}
else
{
delim = *cmd; // get the delimiter
if (delim)
++cmd; // skip delimiter if there is one
pat = cmd; // remember start of pattern
cmd = skip_regexp(cmd, delim, p_magic, &eap->arg);
if (cmd[0] == delim) // end delimiter found
*cmd++ = NUL; // replace it with a NUL
}
if (search_regcomp(pat, RE_BOTH, which_pat, SEARCH_HIS, &regmatch) == FAIL)
{
emsg(_(e_invcmd));
return;
}
if (global_busy)
{
lnum = curwin->w_cursor.lnum;
match = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
(colnr_T)0, NULL, 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, NULL);
if ((type == 'g' && match) || (type == 'v' && !match))
{
ml_setmarked(lnum);
ndone++;
}
line_breakcheck();
}
/*
* pass 2: execute the command for each line that has been marked
*/
if (got_int)
msg(_(e_interr));
else if (ndone == 0)
{
if (type == 'v')
smsg(_("Pattern found in every line: %s"), pat);
else
smsg(_("Pattern not found: %s"), 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 there is already a preview window open, use that one.
*/
if (!curwin->w_p_pvw)
{
# 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(NOT_VALID);
}
}
else
# endif
{
FOR_ALL_WINDOWS(wp)
if (wp->w_p_pvw)
break;
}
if (wp != NULL)
win_enter(wp, undo_sync);
else
{
/*
* 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;
}
}
return FALSE;
}
#endif
/*
* ":help": open a read-only window on a help file
*/
void
ex_help(exarg_T *eap)
{
char_u *arg;
char_u *tag;
FILE *helpfd; // file descriptor of help file
int n;
int i;
win_T *wp;
int num_matches;
char_u **matches;
char_u *p;
int empty_fnum = 0;
int alt_fnum = 0;
buf_T *buf;
#ifdef FEAT_MULTI_LANG
int len;
char_u *lang;
#endif
#ifdef FEAT_FOLDING
int old_KeyTyped = KeyTyped;
#endif
if (eap != NULL)
{
/*
* A ":help" command ends at the first LF, or at a '|' that is
* followed by some text. Set nextcmd to the following command.
*/
for (arg = eap->arg; *arg; ++arg)
{
if (*arg == '\n' || *arg == '\r'
|| (*arg == '|' && arg[1] != NUL && arg[1] != '|'))
{
*arg++ = NUL;
eap->nextcmd = arg;
break;
}
}
arg = eap->arg;
if (eap->forceit && *arg == NUL && !curbuf->b_help)
{
emsg(_("E478: Don't panic!"));
return;
}
if (eap->skip) // not executing commands
return;
}
else
arg = (char_u *)"";
// remove trailing blanks
p = arg + STRLEN(arg) - 1;
while (p > arg && VIM_ISWHITE(*p) && p[-1] != '\\')
*p-- = NUL;
#ifdef FEAT_MULTI_LANG
// Check for a specified language
lang = check_help_lang(arg);
#endif
// When no argument given go to the index.
if (*arg == NUL)
arg = (char_u *)"help.txt";
/*
* Check if there is a match for the argument.
*/
n = find_help_tags(arg, &num_matches, &matches,
eap != NULL && eap->forceit);
i = 0;
#ifdef FEAT_MULTI_LANG
if (n != FAIL && lang != NULL)
// Find first item with the requested language.
for (i = 0; i < num_matches; ++i)
{
len = (int)STRLEN(matches[i]);
if (len > 3 && matches[i][len - 3] == '@'
&& STRICMP(matches[i] + len - 2, lang) == 0)
break;
}
#endif
if (i >= num_matches || n == FAIL)
{
#ifdef FEAT_MULTI_LANG
if (lang != NULL)
semsg(_("E661: Sorry, no '%s' help for %s"), lang, arg);
else
#endif
semsg(_("E149: Sorry, no help for %s"), arg);
if (n != FAIL)
FreeWild(num_matches, matches);
return;
}
// The first match (in the requested language) is the best match.
tag = vim_strsave(matches[i]);
FreeWild(num_matches, matches);
#ifdef FEAT_GUI
need_mouse_correct = TRUE;
#endif
/*
* Re-use an existing help window or open a new one.
* Always open a new one for ":tab help".
*/
if (!bt_help(curwin->w_buffer) || cmdmod.tab != 0)
{
if (cmdmod.tab != 0)
wp = NULL;
else
FOR_ALL_WINDOWS(wp)
if (bt_help(wp->w_buffer))
break;
if (wp != NULL && wp->w_buffer->b_nwindows > 0)
win_enter(wp, TRUE);
else
{
/*
* There is no help window yet.
* Try to open the file specified by the "helpfile" option.
*/
if ((helpfd = mch_fopen((char *)p_hf, READBIN)) == NULL)
{
smsg(_("Sorry, help file \"%s\" not found"), p_hf);
goto erret;
}
fclose(helpfd);
// Split off help window; put it at far top if no position
// specified, the current window is vertically split and
// narrow.
n = WSP_HELP;
if (cmdmod.split == 0 && curwin->w_width != Columns
&& curwin->w_width < 80)
n |= WSP_TOP;
if (win_split(0, n) == FAIL)
goto erret;
if (curwin->w_height < p_hh)
win_setheight((int)p_hh);
/*
* Open help file (do_ecmd() will set b_help flag, readfile() will
* set b_p_ro flag).
* Set the alternate file to the previously edited file.
*/
alt_fnum = curbuf->b_fnum;
(void)do_ecmd(0, NULL, NULL, NULL, ECMD_LASTL,
ECMD_HIDE + ECMD_SET_HELP,
NULL); // buffer is still open, don't store info
if (!cmdmod.keepalt)
curwin->w_alt_fnum = alt_fnum;
empty_fnum = curbuf->b_fnum;
}
}
if (!p_im)
restart_edit = 0; // don't want insert mode in help file
#ifdef FEAT_FOLDING
// Restore KeyTyped, setting 'filetype=help' may reset it.
// It is needed for do_tag top open folds under the cursor.
KeyTyped = old_KeyTyped;
#endif
if (tag != NULL)
do_tag(tag, DT_HELP, 1, FALSE, TRUE);
// Delete the empty buffer if we're not using it. Careful: autocommands
// may have jumped to another window, check that the buffer is not in a
// window.
if (empty_fnum != 0 && curbuf->b_fnum != empty_fnum)
{
buf = buflist_findnr(empty_fnum);
if (buf != NULL && buf->b_nwindows == 0)
wipe_buffer(buf, TRUE);
}
// keep the previous alternate file
if (alt_fnum != 0 && curwin->w_alt_fnum == empty_fnum && !cmdmod.keepalt)
curwin->w_alt_fnum = alt_fnum;
erret:
vim_free(tag);
}
/*
* ":helpclose": Close one help window
*/
void
ex_helpclose(exarg_T *eap UNUSED)
{
win_T *win;
FOR_ALL_WINDOWS(win)
{
if (bt_help(win->w_buffer))
{
win_close(win, FALSE);
return;
}
}
}
#if defined(FEAT_MULTI_LANG) || defined(PROTO)
/*
* In an argument search for a language specifiers in the form "@xx".
* Changes the "@" to NUL if found, and returns a pointer to "xx".
* Returns NULL if not found.
*/
char_u *
check_help_lang(char_u *arg)
{
int len = (int)STRLEN(arg);
if (len >= 3 && arg[len - 3] == '@' && ASCII_ISALPHA(arg[len - 2])
&& ASCII_ISALPHA(arg[len - 1]))
{
arg[len - 3] = NUL; // remove the '@'
return arg + len - 2;
}
return NULL;
}
#endif
/*
* Return a heuristic indicating how well the given string matches. The
* smaller the number, the better the match. This is the order of priorities,
* from best match to worst match:
* - Match with least alphanumeric characters is better.
* - Match with least total characters is better.
* - Match towards the start is better.
* - Match starting with "+" is worse (feature instead of command)
* Assumption is made that the matched_string passed has already been found to
* match some string for which help is requested. webb.
*/
int
help_heuristic(
char_u *matched_string,
int offset, // offset for match
int wrong_case) // no matching case
{
int num_letters;
char_u *p;
num_letters = 0;
for (p = matched_string; *p; p++)
if (ASCII_ISALNUM(*p))
num_letters++;
/*
* Multiply the number of letters by 100 to give it a much bigger
* weighting than the number of characters.
* If there only is a match while ignoring case, add 5000.
* If the match starts in the middle of a word, add 10000 to put it
* somewhere in the last half.
* If the match is more than 2 chars from the start, multiply by 200 to
* put it after matches at the start.
*/
if (ASCII_ISALNUM(matched_string[offset]) && offset > 0
&& ASCII_ISALNUM(matched_string[offset - 1]))
offset += 10000;
else if (offset > 2)
offset *= 200;
if (wrong_case)
offset += 5000;
// Features are less interesting than the subjects themselves, but "+"
// alone is not a feature.
if (matched_string[0] == '+' && matched_string[1] != NUL)
offset += 100;
return (int)(100 * num_letters + STRLEN(matched_string) + offset);
}
/*
* Compare functions for qsort() below, that checks the help heuristics number
* that has been put after the tagname by find_tags().
*/
static int
help_compare(const void *s1, const void *s2)
{
char *p1;
char *p2;
int cmp;
p1 = *(char **)s1 + strlen(*(char **)s1) + 1;
p2 = *(char **)s2 + strlen(*(char **)s2) + 1;
// Compare by help heuristic number first.
cmp = strcmp(p1, p2);
if (cmp != 0)
return cmp;
// Compare by strings as tie-breaker when same heuristic number.
return strcmp(*(char **)s1, *(char **)s2);
}
/*
* Find all help tags matching "arg", sort them and return in matches[], with
* the number of matches in num_matches.
* The matches will be sorted with a "best" match algorithm.
* When "keep_lang" is TRUE try keeping the language of the current buffer.
*/
int
find_help_tags(
char_u *arg,
int *num_matches,
char_u ***matches,
int keep_lang)
{
char_u *s, *d;
int i;
static char *(mtable[]) = {"*", "g*", "[*", "]*", ":*",
"/*", "/\\*", "\"*", "**",
"cpo-*", "/\\(\\)", "/\\%(\\)",
"?", ":?", "?<CR>", "g?", "g?g?", "g??",
"-?", "q?", "v_g?",
"/\\?", "/\\z(\\)", "\\=", ":s\\=",
"[count]", "[quotex]",
"[range]", ":[range]",
"[pattern]", "\\|", "\\%$",
"s/\\~", "s/\\U", "s/\\L",
"s/\\1", "s/\\2", "s/\\3", "s/\\9"};
static char *(rtable[]) = {"star", "gstar", "[star", "]star", ":star",
"/star", "/\\\\star", "quotestar", "starstar",
"cpo-star", "/\\\\(\\\\)", "/\\\\%(\\\\)",
"?", ":?", "?<CR>", "g?", "g?g?", "g??",
"-?", "q?", "v_g?",
"/\\\\?", "/\\\\z(\\\\)", "\\\\=", ":s\\\\=",
"\\[count]", "\\[quotex]",
"\\[range]", ":\\[range]",
"\\[pattern]", "\\\\bar", "/\\\\%\\$",
"s/\\\\\\~", "s/\\\\U", "s/\\\\L",
"s/\\\\1", "s/\\\\2", "s/\\\\3", "s/\\\\9"};
static char *(expr_table[]) = {"!=?", "!~?", "<=?", "<?", "==?", "=~?",
">=?", ">?", "is?", "isnot?"};
int flags;
d = IObuff; // assume IObuff is long enough!
if (STRNICMP(arg, "expr-", 5) == 0)
{
// When the string starting with "expr-" and containing '?' and matches
// the table, it is taken literally (but ~ is escaped). Otherwise '?'
// is recognized as a wildcard.
for (i = (int)(sizeof(expr_table) / sizeof(char *)); --i >= 0; )
if (STRCMP(arg + 5, expr_table[i]) == 0)
{
int si = 0, di = 0;
for (;;)
{
if (arg[si] == '~')
d[di++] = '\\';
d[di++] = arg[si];
if (arg[si] == NUL)
break;
++si;
}
break;
}
}
else
{
// Recognize a few exceptions to the rule. Some strings that contain
// '*' with "star". Otherwise '*' is recognized as a wildcard.
for (i = (int)(sizeof(mtable) / sizeof(char *)); --i >= 0; )
if (STRCMP(arg, mtable[i]) == 0)
{
STRCPY(d, rtable[i]);
break;
}
}
if (i < 0) // no match in table
{
// Replace "\S" with "/\\S", etc. Otherwise every tag is matched.
// Also replace "\%^" and "\%(", they match every tag too.
// Also "\zs", "\z1", etc.
// Also "\@<", "\@=", "\@<=", etc.
// And also "\_$" and "\_^".
if (arg[0] == '\\'
&& ((arg[1] != NUL && arg[2] == NUL)
|| (vim_strchr((char_u *)"%_z@", arg[1]) != NULL
&& arg[2] != NUL)))
{
STRCPY(d, "/\\\\");
STRCPY(d + 3, arg + 1);
// Check for "/\\_$", should be "/\\_\$"
if (d[3] == '_' && d[4] == '$')
STRCPY(d + 4, "\\$");
}
else
{
// Replace:
// "[:...:]" with "\[:...:]"
// "[++...]" with "\[++...]"
// "\{" with "\\{" -- matching "} \}"
if ((arg[0] == '[' && (arg[1] == ':'
|| (arg[1] == '+' && arg[2] == '+')))
|| (arg[0] == '\\' && arg[1] == '{'))
*d++ = '\\';
/*
* If tag starts with "('", skip the "(". Fixes CTRL-] on ('option'.
*/
if (*arg == '(' && arg[1] == '\'')
arg++;
for (s = arg; *s; ++s)
{
/*
* Replace "|" with "bar" and '"' with "quote" to match the name of
* the tags for these commands.
* Replace "*" with ".*" and "?" with "." to match command line
* completion.
* Insert a backslash before '~', '$' and '.' to avoid their
* special meaning.
*/
if (d - IObuff > IOSIZE - 10) // getting too long!?
break;
switch (*s)
{
case '|': STRCPY(d, "bar");
d += 3;
continue;
case '"': STRCPY(d, "quote");
d += 5;
continue;
case '*': *d++ = '.';
break;
case '?': *d++ = '.';
continue;
case '$':
case '.':
case '~': *d++ = '\\';
break;
}
/*
* Replace "^x" by "CTRL-X". Don't do this for "^_" to make
* ":help i_^_CTRL-D" work.
* Insert '-' before and after "CTRL-X" when applicable.
*/
if (*s < ' ' || (*s == '^' && s[1] && (ASCII_ISALPHA(s[1])
|| vim_strchr((char_u *)"?@[\\]^", s[1]) != NULL)))
{
if (d > IObuff && d[-1] != '_' && d[-1] != '\\')
*d++ = '_'; // prepend a '_' to make x_CTRL-x
STRCPY(d, "CTRL-");
d += 5;
if (*s < ' ')
{
#ifdef EBCDIC
*d++ = CtrlChar(*s);
#else
*d++ = *s + '@';
#endif
if (d[-1] == '\\')
*d++ = '\\'; // double a backslash
}
else
*d++ = *++s;
if (s[1] != NUL && s[1] != '_')
*d++ = '_'; // append a '_'
continue;
}
else if (*s == '^') // "^" or "CTRL-^" or "^_"
*d++ = '\\';
/*
* Insert a backslash before a backslash after a slash, for search
* pattern tags: "/\|" --> "/\\|".
*/
else if (s[0] == '\\' && s[1] != '\\'
&& *arg == '/' && s == arg + 1)
*d++ = '\\';
// "CTRL-\_" -> "CTRL-\\_" to avoid the special meaning of "\_" in
// "CTRL-\_CTRL-N"
if (STRNICMP(s, "CTRL-\\_", 7) == 0)
{
STRCPY(d, "CTRL-\\\\");
d += 7;
s += 6;
}
*d++ = *s;
/*
* If tag contains "({" or "([", tag terminates at the "(".
* This is for help on functions, e.g.: abs({expr}).
*/
if (*s == '(' && (s[1] == '{' || s[1] =='['))
break;
/*
* If tag starts with ', toss everything after a second '. Fixes
* CTRL-] on 'option'. (would include the trailing '.').
*/
if (*s == '\'' && s > arg && *arg == '\'')
break;
// Also '{' and '}'.
if (*s == '}' && s > arg && *arg == '{')
break;
}
*d = NUL;
if (*IObuff == '`')
{
if (d > IObuff + 2 && d[-1] == '`')
{
// remove the backticks from `command`
mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff));
d[-2] = NUL;
}
else if (d > IObuff + 3 && d[-2] == '`' && d[-1] == ',')
{
// remove the backticks and comma from `command`,
mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff));
d[-3] = NUL;
}
else if (d > IObuff + 4 && d[-3] == '`'
&& d[-2] == '\\' && d[-1] == '.')
{
// remove the backticks and dot from `command`\.
mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff));
d[-4] = NUL;
}
}
}
}
*matches = (char_u **)"";
*num_matches = 0;
flags = TAG_HELP | TAG_REGEXP | TAG_NAMES | TAG_VERBOSE | TAG_NO_TAGFUNC;
if (keep_lang)
flags |= TAG_KEEP_LANG;
if (find_tags(IObuff, num_matches, matches, flags, (int)MAXCOL, NULL) == OK
&& *num_matches > 0)
{
// Sort the matches found on the heuristic number that is after the
// tag name.
qsort((void *)*matches, (size_t)*num_matches,
sizeof(char_u *), help_compare);
// Delete more than TAG_MANY to reduce the size of the listing.
while (*num_matches > TAG_MANY)
vim_free((*matches)[--*num_matches]);
}
return OK;
}
/*
* Called when starting to edit a buffer for a help file.
*/
static void
prepare_help_buffer(void)
{
char_u *p;
curbuf->b_help = TRUE;
#ifdef FEAT_QUICKFIX
set_string_option_direct((char_u *)"buftype", -1,
(char_u *)"help", OPT_FREE|OPT_LOCAL, 0);
#endif
/*
* Always set these options after jumping to a help tag, because the
* user may have an autocommand that gets in the way.
* Accept all ASCII chars for keywords, except ' ', '*', '"', '|', and
* latin1 word characters (for translated help files).
* Only set it when needed, buf_init_chartab() is some work.
*/
p =
#ifdef EBCDIC
(char_u *)"65-255,^*,^|,^\"";
#else
(char_u *)"!-~,^*,^|,^\",192-255";
#endif
if (STRCMP(curbuf->b_p_isk, p) != 0)
{
set_string_option_direct((char_u *)"isk", -1, p, OPT_FREE|OPT_LOCAL, 0);
check_buf_options(curbuf);
(void)buf_init_chartab(curbuf, FALSE);
}
#ifdef FEAT_FOLDING
// Don't use the global foldmethod.
set_string_option_direct((char_u *)"fdm", -1, (char_u *)"manual",
OPT_FREE|OPT_LOCAL, 0);
#endif
curbuf->b_p_ts = 8; // 'tabstop' is 8
curwin->w_p_list = FALSE; // no list mode
curbuf->b_p_ma = FALSE; // not modifiable
curbuf->b_p_bin = FALSE; // reset 'bin' before reading file
curwin->w_p_nu = 0; // no line numbers
curwin->w_p_rnu = 0; // no relative line numbers
RESET_BINDING(curwin); // no scroll or cursor binding
#ifdef FEAT_ARABIC
curwin->w_p_arab = FALSE; // no arabic mode
#endif
#ifdef FEAT_RIGHTLEFT
curwin->w_p_rl = FALSE; // help window is left-to-right
#endif
#ifdef FEAT_FOLDING
curwin->w_p_fen = FALSE; // No folding in the help window
#endif
#ifdef FEAT_DIFF
curwin->w_p_diff = FALSE; // No 'diff'
#endif
#ifdef FEAT_SPELL
curwin->w_p_spell = FALSE; // No spell checking
#endif
set_buflisted(FALSE);
}
/*
* After reading a help file: May cleanup a help buffer when syntax
* highlighting is not used.
*/
void
fix_help_buffer(void)
{
linenr_T lnum;
char_u *line;
int in_example = FALSE;
int len;
char_u *fname;
char_u *p;
char_u *rt;
int mustfree;
// Set filetype to "help" if still needed.
if (STRCMP(curbuf->b_p_ft, "help") != 0)
{
++curbuf_lock;
set_option_value((char_u *)"ft", 0L, (char_u *)"help", OPT_LOCAL);
--curbuf_lock;
}
#ifdef FEAT_SYN_HL
if (!syntax_present(curwin))
#endif
{
for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
{
line = ml_get_buf(curbuf, lnum, FALSE);
len = (int)STRLEN(line);
if (in_example && len > 0 && !VIM_ISWHITE(line[0]))
{
// End of example: non-white or '<' in first column.
if (line[0] == '<')
{
// blank-out a '<' in the first column
line = ml_get_buf(curbuf, lnum, TRUE);
line[0] = ' ';
}
in_example = FALSE;
}
if (!in_example && len > 0)
{
if (line[len - 1] == '>' && (len == 1 || line[len - 2] == ' '))
{
// blank-out a '>' in the last column (start of example)
line = ml_get_buf(curbuf, lnum, TRUE);
line[len - 1] = ' ';
in_example = TRUE;
}
else if (line[len - 1] == '~')
{
// blank-out a '~' at the end of line (header marker)
line = ml_get_buf(curbuf, lnum, TRUE);
line[len - 1] = ' ';
}
}
}
}
/*
* In the "help.txt" and "help.abx" file, add the locally added help
* files. This uses the very first line in the help file.
*/
fname = gettail(curbuf->b_fname);
if (fnamecmp(fname, "help.txt") == 0
#ifdef FEAT_MULTI_LANG
|| (fnamencmp(fname, "help.", 5) == 0
&& ASCII_ISALPHA(fname[5])
&& ASCII_ISALPHA(fname[6])
&& TOLOWER_ASC(fname[7]) == 'x'
&& fname[8] == NUL)
#endif
)
{
for (lnum = 1; lnum < curbuf->b_ml.ml_line_count; ++lnum)
{
line = ml_get_buf(curbuf, lnum, FALSE);
if (strstr((char *)line, "*local-additions*") == NULL)
continue;
// Go through all directories in 'runtimepath', skipping
// $VIMRUNTIME.
p = p_rtp;
while (*p != NUL)
{
copy_option_part(&p, NameBuff, MAXPATHL, ",");
mustfree = FALSE;
rt = vim_getenv((char_u *)"VIMRUNTIME", &mustfree);
if (rt != NULL &&
fullpathcmp(rt, NameBuff, FALSE, TRUE) != FPC_SAME)
{
int fcount;
char_u **fnames;
FILE *fd;
char_u *s;
int fi;
vimconv_T vc;
char_u *cp;
// Find all "doc/ *.txt" files in this directory.
add_pathsep(NameBuff);
#ifdef FEAT_MULTI_LANG
STRCAT(NameBuff, "doc/*.??[tx]");
#else
STRCAT(NameBuff, "doc/*.txt");
#endif
if (gen_expand_wildcards(1, &NameBuff, &fcount,
&fnames, EW_FILE|EW_SILENT) == OK
&& fcount > 0)
{
#ifdef FEAT_MULTI_LANG
int i1, i2;
char_u *f1, *f2;
char_u *t1, *t2;
char_u *e1, *e2;
// If foo.abx is found use it instead of foo.txt in
// the same directory.
for (i1 = 0; i1 < fcount; ++i1)
{
for (i2 = 0; i2 < fcount; ++i2)
{
if (i1 == i2)
continue;
if (fnames[i1] == NULL || fnames[i2] == NULL)
continue;
f1 = fnames[i1];
f2 = fnames[i2];
t1 = gettail(f1);
t2 = gettail(f2);
e1 = vim_strrchr(t1, '.');
e2 = vim_strrchr(t2, '.');
if (e1 == NULL || e2 == NULL)
continue;
if (fnamecmp(e1, ".txt") != 0
&& fnamecmp(e1, fname + 4) != 0)
{
// Not .txt and not .abx, remove it.
VIM_CLEAR(fnames[i1]);
continue;
}
if (e1 - f1 != e2 - f2
|| fnamencmp(f1, f2, e1 - f1) != 0)
continue;
if (fnamecmp(e1, ".txt") == 0
&& fnamecmp(e2, fname + 4) == 0)
// use .abx instead of .txt
VIM_CLEAR(fnames[i1]);
}
}
#endif
for (fi = 0; fi < fcount; ++fi)
{
if (fnames[fi] == NULL)
continue;
fd = mch_fopen((char *)fnames[fi], "r");
if (fd != NULL)
{
vim_fgets(IObuff, IOSIZE, fd);
if (IObuff[0] == '*'
&& (s = vim_strchr(IObuff + 1, '*'))
!= NULL)
{
int this_utf = MAYBE;
// Change tag definition to a
// reference and remove <CR>/<NL>.
IObuff[0] = '|';
*s = '|';
while (*s != NUL)
{
if (*s == '\r' || *s == '\n')
*s = NUL;
// The text is utf-8 when a byte
// above 127 is found and no
// illegal byte sequence is found.
if (*s >= 0x80 && this_utf != FALSE)
{
int l;
this_utf = TRUE;
l = utf_ptr2len(s);
if (l == 1)
this_utf = FALSE;
s += l - 1;
}
++s;
}
// The help file is latin1 or utf-8;
// conversion to the current
// 'encoding' may be required.
vc.vc_type = CONV_NONE;
convert_setup(&vc, (char_u *)(
this_utf == TRUE ? "utf-8"
: "latin1"), p_enc);
if (vc.vc_type == CONV_NONE)
// No conversion needed.
cp = IObuff;
else
{
// Do the conversion. If it fails
// use the unconverted text.
cp = string_convert(&vc, IObuff,
NULL);
if (cp == NULL)
cp = IObuff;
}
convert_setup(&vc, NULL, NULL);
ml_append(lnum, cp, (colnr_T)0, FALSE);
if (cp != IObuff)
vim_free(cp);
++lnum;
}
fclose(fd);
}
}
FreeWild(fcount, fnames);
}
}
if (mustfree)
vim_free(rt);
}
break;
}
}
}
/*
* ":exusage"
*/
void
ex_exusage(exarg_T *eap UNUSED)
{
do_cmdline_cmd((char_u *)"help ex-cmd-index");
}
/*
* ":viusage"
*/
void
ex_viusage(exarg_T *eap UNUSED)
{
do_cmdline_cmd((char_u *)"help normal-index");
}
/*
* Generate tags in one help directory.
*/
static void
helptags_one(
char_u *dir, // doc directory
char_u *ext, // suffix, ".txt", ".itx", ".frx", etc.
char_u *tagfname, // "tags" for English, "tags-fr" for French.
int add_help_tags, // add "help-tags" tag
int ignore_writeerr) // ignore write error
{
FILE *fd_tags;
FILE *fd;
garray_T ga;
int filecount;
char_u **files;
char_u *p1, *p2;
int fi;
char_u *s;
int i;
char_u *fname;
int dirlen;
int utf8 = MAYBE;
int this_utf8;
int firstline;
int mix = FALSE; // detected mixed encodings
/*
* Find all *.txt files.
*/
dirlen = (int)STRLEN(dir);
STRCPY(NameBuff, dir);
STRCAT(NameBuff, "/**/*");
STRCAT(NameBuff, ext);
if (gen_expand_wildcards(1, &NameBuff, &filecount, &files,
EW_FILE|EW_SILENT) == FAIL
|| filecount == 0)
{
if (!got_int)
semsg(_("E151: No match: %s"), NameBuff);
return;
}
/*
* Open the tags file for writing.
* Do this before scanning through all the files.
*/
STRCPY(NameBuff, dir);
add_pathsep(NameBuff);
STRCAT(NameBuff, tagfname);
fd_tags = mch_fopen((char *)NameBuff, "w");
if (fd_tags == NULL)
{
if (!ignore_writeerr)
semsg(_("E152: Cannot open %s for writing"), NameBuff);
FreeWild(filecount, files);
return;
}
/*
* If using the "++t" argument or generating tags for "$VIMRUNTIME/doc"
* add the "help-tags" tag.
*/
ga_init2(&ga, (int)sizeof(char_u *), 100);
if (add_help_tags || fullpathcmp((char_u *)"$VIMRUNTIME/doc",
dir, FALSE, TRUE) == FPC_SAME)
{
if (ga_grow(&ga, 1) == FAIL)
got_int = TRUE;
else
{
s = alloc(18 + (unsigned)STRLEN(tagfname));
if (s == NULL)
got_int = TRUE;
else
{
sprintf((char *)s, "help-tags\t%s\t1\n", tagfname);
((char_u **)ga.ga_data)[ga.ga_len] = s;
++ga.ga_len;
}
}
}
/*
* Go over all the files and extract the tags.
*/
for (fi = 0; fi < filecount && !got_int; ++fi)
{
fd = mch_fopen((char *)files[fi], "r");
if (fd == NULL)
{
semsg(_("E153: Unable to open %s for reading"), files[fi]);
continue;
}
fname = files[fi] + dirlen + 1;
firstline = TRUE;
while (!vim_fgets(IObuff, IOSIZE, fd) && !got_int)
{
if (firstline)
{
// Detect utf-8 file by a non-ASCII char in the first line.
this_utf8 = MAYBE;
for (s = IObuff; *s != NUL; ++s)
if (*s >= 0x80)
{
int l;
this_utf8 = TRUE;
l = utf_ptr2len(s);
if (l == 1)
{
// Illegal UTF-8 byte sequence.
this_utf8 = FALSE;
break;
}
s += l - 1;
}
if (this_utf8 == MAYBE) // only ASCII characters found
this_utf8 = FALSE;
if (utf8 == MAYBE) // first file
utf8 = this_utf8;
else if (utf8 != this_utf8)
{
semsg(_("E670: Mix of help file encodings within a language: %s"), files[fi]);
mix = !got_int;
got_int = TRUE;
}
firstline = FALSE;
}
p1 = vim_strchr(IObuff, '*'); // find first '*'
while (p1 != NULL)
{
// Use vim_strbyte() instead of vim_strchr() so that when
// 'encoding' is dbcs it still works, don't find '*' in the
// second byte.
p2 = vim_strbyte(p1 + 1, '*'); // find second '*'
if (p2 != NULL && p2 > p1 + 1) // skip "*" and "**"
{
for (s = p1 + 1; s < p2; ++s)
if (*s == ' ' || *s == '\t' || *s == '|')
break;
/*
* Only accept a *tag* when it consists of valid
* characters, there is white space before it and is
* followed by a white character or end-of-line.
*/
if (s == p2
&& (p1 == IObuff || p1[-1] == ' ' || p1[-1] == '\t')
&& (vim_strchr((char_u *)" \t\n\r", s[1]) != NULL
|| s[1] == '\0'))
{
*p2 = '\0';
++p1;
if (ga_grow(&ga, 1) == FAIL)
{
got_int = TRUE;
break;
}
s = alloc(p2 - p1 + STRLEN(fname) + 2);
if (s == NULL)
{
got_int = TRUE;
break;
}
((char_u **)ga.ga_data)[ga.ga_len] = s;
++ga.ga_len;
sprintf((char *)s, "%s\t%s", p1, fname);
// find next '*'
p2 = vim_strchr(p2 + 1, '*');
}
}
p1 = p2;
}
line_breakcheck();
}
fclose(fd);
}
FreeWild(filecount, files);
if (!got_int)
{
/*
* Sort the tags.
*/
if (ga.ga_data != NULL)
sort_strings((char_u **)ga.ga_data, ga.ga_len);
/*
* Check for duplicates.
*/
for (i = 1; i < ga.ga_len; ++i)
{
p1 = ((char_u **)ga.ga_data)[i - 1];
p2 = ((char_u **)ga.ga_data)[i];
while (*p1 == *p2)
{
if (*p2 == '\t')
{
*p2 = NUL;
vim_snprintf((char *)NameBuff, MAXPATHL,
_("E154: Duplicate tag \"%s\" in file %s/%s"),
((char_u **)ga.ga_data)[i], dir, p2 + 1);
emsg((char *)NameBuff);
*p2 = '\t';
break;
}
++p1;
++p2;
}
}
if (utf8 == TRUE)
fprintf(fd_tags, "!_TAG_FILE_ENCODING\tutf-8\t//\n");
/*
* Write the tags into the file.
*/
for (i = 0; i < ga.ga_len; ++i)
{
s = ((char_u **)ga.ga_data)[i];
if (STRNCMP(s, "help-tags\t", 10) == 0)
// help-tags entry was added in formatted form
fputs((char *)s, fd_tags);
else
{
fprintf(fd_tags, "%s\t/*", s);
for (p1 = s; *p1 != '\t'; ++p1)
{
// insert backslash before '\\' and '/'
if (*p1 == '\\' || *p1 == '/')
putc('\\', fd_tags);
putc(*p1, fd_tags);
}
fprintf(fd_tags, "*\n");
}
}
}
if (mix)
got_int = FALSE; // continue with other languages
for (i = 0; i < ga.ga_len; ++i)
vim_free(((char_u **)ga.ga_data)[i]);
ga_clear(&ga);
fclose(fd_tags); // there is no check for an error...
}
/*
* Generate tags in one help directory, taking care of translations.
*/
static void
do_helptags(char_u *dirname, int add_help_tags, int ignore_writeerr)
{
#ifdef FEAT_MULTI_LANG
int len;
int i, j;
garray_T ga;
char_u lang[2];
char_u ext[5];
char_u fname[8];
int filecount;
char_u **files;
// Get a list of all files in the help directory and in subdirectories.
STRCPY(NameBuff, dirname);
add_pathsep(NameBuff);
STRCAT(NameBuff, "**");
if (gen_expand_wildcards(1, &NameBuff, &filecount, &files,
EW_FILE|EW_SILENT) == FAIL
|| filecount == 0)
{
semsg(_("E151: No match: %s"), NameBuff);
return;
}
// Go over all files in the directory to find out what languages are
// present.
ga_init2(&ga, 1, 10);
for (i = 0; i < filecount; ++i)
{
len = (int)STRLEN(files[i]);
if (len > 4)
{
if (STRICMP(files[i] + len - 4, ".txt") == 0)
{
// ".txt" -> language "en"
lang[0] = 'e';
lang[1] = 'n';
}
else if (files[i][len - 4] == '.'
&& ASCII_ISALPHA(files[i][len - 3])
&& ASCII_ISALPHA(files[i][len - 2])
&& TOLOWER_ASC(files[i][len - 1]) == 'x')
{
// ".abx" -> language "ab"
lang[0] = TOLOWER_ASC(files[i][len - 3]);
lang[1] = TOLOWER_ASC(files[i][len - 2]);
}
else
continue;
// Did we find this language already?
for (j = 0; j < ga.ga_len; j += 2)
if (STRNCMP(lang, ((char_u *)ga.ga_data) + j, 2) == 0)
break;
if (j == ga.ga_len)
{
// New language, add it.
if (ga_grow(&ga, 2) == FAIL)
break;
((char_u *)ga.ga_data)[ga.ga_len++] = lang[0];
((char_u *)ga.ga_data)[ga.ga_len++] = lang[1];
}
}
}
/*
* Loop over the found languages to generate a tags file for each one.
*/
for (j = 0; j < ga.ga_len; j += 2)
{
STRCPY(fname, "tags-xx");
fname[5] = ((char_u *)ga.ga_data)[j];
fname[6] = ((char_u *)ga.ga_data)[j + 1];
if (fname[5] == 'e' && fname[6] == 'n')
{
// English is an exception: use ".txt" and "tags".
fname[4] = NUL;
STRCPY(ext, ".txt");
}
else
{
// Language "ab" uses ".abx" and "tags-ab".
STRCPY(ext, ".xxx");
ext[1] = fname[5];
ext[2] = fname[6];
}
helptags_one(dirname, ext, fname, add_help_tags, ignore_writeerr);
}
ga_clear(&ga);
FreeWild(filecount, files);
#else
// No language support, just use "*.txt" and "tags".
helptags_one(dirname, (char_u *)".txt", (char_u *)"tags", add_help_tags,
ignore_writeerr);
#endif
}
static void
helptags_cb(char_u *fname, void *cookie)
{
do_helptags(fname, *(int *)cookie, TRUE);
}
/*
* ":helptags"
*/
void
ex_helptags(exarg_T *eap)
{
expand_T xpc;
char_u *dirname;
int add_help_tags = FALSE;
// Check for ":helptags ++t {dir}".
if (STRNCMP(eap->arg, "++t", 3) == 0 && VIM_ISWHITE(eap->arg[3]))
{
add_help_tags = TRUE;
eap->arg = skipwhite(eap->arg + 3);
}
if (STRCMP(eap->arg, "ALL") == 0)
{
do_in_path(p_rtp, (char_u *)"doc", DIP_ALL + DIP_DIR,
helptags_cb, &add_help_tags);
}
else
{
ExpandInit(&xpc);
xpc.xp_context = EXPAND_DIRECTORIES;
dirname = ExpandOne(&xpc, eap->arg, NULL,
WILD_LIST_NOTFOUND|WILD_SILENT, WILD_EXPAND_FREE);
if (dirname == NULL || !mch_isdir(dirname))
semsg(_("E150: Not a directory: %s"), eap->arg);
else
do_helptags(dirname, add_help_tags, FALSE);
vim_free(dirname);
}
}
/*
* 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;
/*
* 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.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);
}
else
{
// ":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;
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)
{
int c;
if (vim_isIDc(*p))
{
// ":vimgrep pattern fname"
if (s != NULL)
*s = p;
p = skiptowhite(p);
if (s != NULL && *p != NUL)
*p++ = NUL;
}
else
{
// ":vimgrep /pattern/[g][j] fname"
if (s != NULL)
*s = p + 1;
c = *p;
p = skip_regexp(p + 1, c, TRUE, NULL);
if (*p != c)
return NULL;
// Truncate the pattern.
if (s != NULL)
*p = NUL;
++p;
// Find the flags
while (*p == 'g' || *p == 'j')
{
if (flags != NULL)
{
if (*p == 'g')
*flags |= VGR_GLOBAL;
else
*flags |= VGR_NOJUMP;
}
++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"));
else
{
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.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.browse = FALSE;
do_exedit(eap, NULL);
vim_free(p);
}
}
}
# endif
}
}
#endif