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vim-patch:7.4.2219

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Problem:    Recursive call to substitute gets stuck in sandbox. (Nikolai
            Pavlov)
Solution:   Handle the recursive call. (Christian Brabandt, closes vim/vim#950)
            Add a test.

f5a39447a8

Closes #5118
This commit is contained in:
James McCoy 2016-08-16 16:07:15 -04:00
parent 35ddcc5bb4
commit c7e6b58012
No known key found for this signature in database
GPG Key ID: DFE691AE331BA3DB
3 changed files with 102 additions and 67 deletions
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160
src/nvim/ex_cmds.c
View File

@ -2878,6 +2878,25 @@ static SubReplacementString old_sub = {NULL, 0, NULL};
static int global_need_beginline; // call beginline() after ":g"
/// Case matching style to use for :substitute
typedef enum {
kSubHonorOptions = 0, ///< Honor the user's 'ignorecase'/'smartcase' options
kSubIgnoreCase, ///< Ignore case of the search
kSubMatchCase, ///< Match case of the search
} SubIgnoreType;
/// Flags kept between calls to :substitute.
typedef struct {
bool do_all; ///< do multiple substitutions per line
bool do_ask; ///< ask for confirmation
bool do_count; ///< count only
bool do_error; ///< if false, ignore errors
bool do_print; ///< print last line with subs
bool do_list; ///< list last line with subs
bool do_number; ///< list last line with line nr
SubIgnoreType do_ic; ///< ignore case flag
} subflags_T;
/// Get old substitute replacement string
///
/// @param[out] ret_sub Location where old string will be saved.
@ -2915,16 +2934,18 @@ void do_sub(exarg_T *eap)
linenr_T lnum;
long i = 0;
regmmatch_T regmatch;
static int do_all = FALSE; /* do multiple substitutions per line */
static int do_ask = FALSE; /* ask for confirmation */
static bool do_count = false; /* count only */
static int do_error = TRUE; /* if false, ignore errors */
static int do_print = FALSE; /* print last line with subs. */
static int do_list = FALSE; /* list last line with subs. */
static int do_number = FALSE; /* list last line with line nr*/
static int do_ic = 0; /* ignore case flag */
int save_do_all; // remember user specified 'g' flag
int save_do_ask; // remember user specified 'c' flag
static subflags_T subflags = {
.do_all = false,
.do_ask = false,
.do_count = false,
.do_error = true,
.do_print = false,
.do_list = false,
.do_number = false,
.do_ic = kSubHonorOptions
};
bool save_do_all; // remember user specified 'g' flag
bool save_do_ask; // remember user specified 'c' flag
char_u *pat = NULL, *sub = NULL; /* init for GCC */
int delimiter;
int sublen;
@ -3075,57 +3096,55 @@ void do_sub(exarg_T *eap)
if (*cmd == '&') {
++cmd;
} else {
// default is global on
do_all = p_gd ? TRUE : FALSE;
do_ask = FALSE;
do_error = TRUE;
do_print = FALSE;
do_count = false;
do_number = FALSE;
do_ic = 0;
subflags.do_all = p_gd;
subflags.do_ask = false;
subflags.do_error = true;
subflags.do_print = false;
subflags.do_count = false;
subflags.do_number = false;
subflags.do_ic = kSubHonorOptions;
}
while (*cmd) {
// Note that 'g' and 'c' are always inverted.
// 'r' is never inverted.
if (*cmd == 'g')
do_all = !do_all;
subflags.do_all = !subflags.do_all;
else if (*cmd == 'c')
do_ask = !do_ask;
subflags.do_ask = !subflags.do_ask;
else if (*cmd == 'n')
do_count = true;
subflags.do_count = true;
else if (*cmd == 'e')
do_error = !do_error;
subflags.do_error = !subflags.do_error;
else if (*cmd == 'r') /* use last used regexp */
which_pat = RE_LAST;
else if (*cmd == 'p')
do_print = TRUE;
subflags.do_print = true;
else if (*cmd == '#') {
do_print = TRUE;
do_number = TRUE;
subflags.do_print = true;
subflags.do_number = true;
} else if (*cmd == 'l') {
do_print = TRUE;
do_list = TRUE;
subflags.do_print = true;
subflags.do_list = true;
} else if (*cmd == 'i') /* ignore case */
do_ic = 'i';
subflags.do_ic = kSubIgnoreCase;
else if (*cmd == 'I') /* don't ignore case */
do_ic = 'I';
subflags.do_ic = kSubMatchCase;
else
break;
++cmd;
}
if (do_count) {
do_ask = FALSE;
if (subflags.do_count) {
subflags.do_ask = false;
}
save_do_all = do_all;
save_do_ask = do_ask;
save_do_all = subflags.do_all;
save_do_ask = subflags.do_ask;
// check for a trailing count
cmd = skipwhite(cmd);
if (ascii_isdigit(*cmd)) {
i = getdigits_long(&cmd);
if (i <= 0 && !eap->skip && do_error) {
if (i <= 0 && !eap->skip && subflags.do_error) {
EMSG(_(e_zerocount));
return;
}
@ -3150,7 +3169,7 @@ void do_sub(exarg_T *eap)
if (eap->skip) /* not executing commands, only parsing */
return;
if (!do_count && !MODIFIABLE(curbuf)) {
if (!subflags.do_count && !MODIFIABLE(curbuf)) {
/* Substitution is not allowed in non-'modifiable' buffer */
EMSG(_(e_modifiable));
return;
@ -3158,15 +3177,15 @@ void do_sub(exarg_T *eap)
if (search_regcomp(pat, RE_SUBST, which_pat, SEARCH_HIS,
&regmatch) == FAIL) {
if (do_error)
if (subflags.do_error)
EMSG(_(e_invcmd));
return;
}
/* the 'i' or 'I' flag overrules 'ignorecase' and 'smartcase' */
if (do_ic == 'i')
if (subflags.do_ic == kSubIgnoreCase)
regmatch.rmm_ic = TRUE;
else if (do_ic == 'I')
else if (subflags.do_ic == kSubMatchCase)
regmatch.rmm_ic = FALSE;
sub_firstline = NULL;
@ -3261,9 +3280,9 @@ void do_sub(exarg_T *eap)
/*
* Loop until nothing more to replace in this line.
* 1. Handle match with empty string.
* 2. If do_ask is set, ask for confirmation.
* 2. If subflags.do_ask is set, ask for confirmation.
* 3. substitute the string.
* 4. if do_all is set, find next match
* 4. if subflags.do_all is set, find next match
* 5. break if there isn't another match in this line
*/
for (;; ) {
@ -3315,10 +3334,10 @@ void do_sub(exarg_T *eap)
prev_matchcol = matchcol;
/*
* 2. If do_count is set only increase the counter.
* 2. If subflags.do_count is set only increase the counter.
* If do_ask is set, ask for confirmation.
*/
if (do_count) {
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.
@ -3336,7 +3355,7 @@ void do_sub(exarg_T *eap)
goto skip;
}
if (do_ask) {
if (subflags.do_ask) {
int typed = 0;
/* change State to CONFIRM, so that the mouse works
@ -3354,17 +3373,17 @@ void do_sub(exarg_T *eap)
/*
* Loop until 'y', 'n', 'q', CTRL-E or CTRL-Y typed.
*/
while (do_ask) {
while (subflags.do_ask) {
if (exmode_active) {
char_u *resp;
colnr_T sc, ec;
print_line_no_prefix(lnum, do_number, do_list);
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;
getvcol(curwin, &curwin->w_cursor, NULL, NULL, &ec);
if (do_number || curwin->w_p_nu) {
if (subflags.do_number || curwin->w_p_nu) {
int numw = number_width(curwin) + 1;
sc += numw;
ec += numw;
@ -3469,12 +3488,12 @@ void do_sub(exarg_T *eap)
break;
if (typed == 'l') {
/* last: replace and then stop */
do_all = FALSE;
subflags.do_all = false;
line2 = lnum;
break;
}
if (typed == 'a') {
do_ask = FALSE;
subflags.do_ask = FALSE;
break;
}
if (typed == Ctrl_E)
@ -3510,19 +3529,25 @@ void do_sub(exarg_T *eap)
/*
* 3. substitute the string.
*/
if (do_count) {
if (subflags.do_count) {
/* prevent accidentally changing the buffer by a function */
save_ma = curbuf->b_p_ma;
curbuf->b_p_ma = FALSE;
sandbox++;
}
// Save flags for recursion. They can change for e.g.
// :s/^/\=execute("s#^##gn")
subflags_T subflags_save = subflags;
/* get length of substitution part */
sublen = vim_regsub_multi(&regmatch,
sub_firstlnum - regmatch.startpos[0].lnum,
sub, sub_firstline, FALSE, p_magic, TRUE);
if (do_count) {
// Don't keep flags set by a recursive call
subflags = subflags_save;
if (subflags.do_count) {
curbuf->b_p_ma = save_ma;
sandbox--;
if (sandbox > 0)
sandbox--;
goto skip;
}
@ -3599,7 +3624,7 @@ void do_sub(exarg_T *eap)
if (sub_firstlnum <= line2)
do_again = TRUE;
else
do_all = FALSE;
subflags.do_all = false;
}
/* Remember next character to be copied. */
@ -3630,7 +3655,7 @@ void do_sub(exarg_T *eap)
ml_append(lnum - 1, new_start,
(colnr_T)(p1 - new_start + 1), FALSE);
mark_adjust(lnum + 1, (linenr_T)MAXLNUM, 1L, 0L);
if (do_ask)
if (subflags.do_ask)
appended_lines(lnum - 1, 1L);
else {
if (first_line == 0)
@ -3652,7 +3677,7 @@ void do_sub(exarg_T *eap)
}
/*
* 4. If do_all is set, find next match.
* 4. If subflags.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.
@ -3667,7 +3692,7 @@ skip:
|| got_int
|| got_quit
|| lnum > line2
|| !(do_all || do_again)
|| !(subflags.do_all || do_again)
|| (sub_firstline[matchcol] == NUL && nmatch <= 1
&& !re_multiline(regmatch.regprog)));
nmatch = -1;
@ -3718,7 +3743,7 @@ skip:
ml_delete(lnum, (int)FALSE);
mark_adjust(lnum, lnum + nmatch_tl - 1,
(long)MAXLNUM, -nmatch_tl);
if (do_ask)
if (subflags.do_ask)
deleted_lines(lnum, nmatch_tl);
--lnum;
line2 -= nmatch_tl; /* nr of lines decreases */
@ -3727,7 +3752,7 @@ skip:
/* When asking, undo is saved each time, must also set
* changed flag each time. */
if (do_ask)
if (subflags.do_ask)
changed_bytes(lnum, 0);
else {
if (first_line == 0)
@ -3785,7 +3810,7 @@ skip:
xfree(sub_firstline); /* may have to free allocated copy of the line */
/* ":s/pat//n" doesn't move the cursor */
if (do_count)
if (subflags.do_count)
curwin->w_cursor = old_cursor;
if (sub_nsubs > start_nsubs) {
@ -3795,28 +3820,29 @@ skip:
curbuf->b_op_start.col = curbuf->b_op_end.col = 0;
if (!global_busy) {
if (!do_ask) { /* when interactive leave cursor on the match */
// 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(do_count) && do_ask)
if (!do_sub_msg(subflags.do_count) && subflags.do_ask)
MSG("");
} else
global_need_beginline = TRUE;
if (do_print)
print_line(curwin->w_cursor.lnum, do_number, do_list);
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 (do_error) /* nothing found */
else if (subflags.do_error) /* nothing found */
EMSG2(_(e_patnotf2), get_search_pat());
}
if (do_ask && hasAnyFolding(curwin)) {
if (subflags.do_ask && hasAnyFolding(curwin)) {
// Cursor position may require updating
changed_window_setting();
}
@ -3824,8 +3850,8 @@ skip:
vim_regfree(regmatch.regprog);
// Restore the flag values, they can be used for ":&&".
do_all = save_do_all;
do_ask = save_do_ask;
subflags.do_all = save_do_all;
subflags.do_ask = save_do_ask;
}
/*

8
src/nvim/testdir/test_regexp_utf8.vim
View File

@ -31,3 +31,11 @@ func Test_equivalence_re2()
call s:equivalence_test()
set re=0
endfunc
func Test_recursive_substitute()
new
s/^/\=execute("s#^##gn")
" check we are now not in the sandbox
call setwinvar(1, 'myvar', 1)
bwipe!
endfunc

1
src/nvim/version.c
View File

@ -75,6 +75,7 @@ static char *features[] = {
// clang-format off
static int included_patches[] = {
2219,
// 2200,
// 2199,
// 2198,