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Combining the regular-expression flags at compile time instead of at run time.

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git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5732 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
Benno Schulenberg 2016-03-13 19:37:21 +00:00
parent 57c50baa61
commit 6ed6462154
5 changed files with 17 additions and 19 deletions
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2
ChangeLog
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@ -2,6 +2,8 @@
* src/search.c (regexp_init): Allow using the word boundary markers
\< and \> in search strings on non-GNU systems. This is a partial
fix for Savannah bug #47325 reported by Thomas Rosenau.
* src/rcfile.c (parse_rcfile, parse_colors, nregcomp): Combine the
regular-expression flags at compile time instead of at run time.
2016-03-13 Thomas Rosenau <thomasr@fantasymail.de> (tiny change)
* autogen.sh, README.SVN: Mention SVN instead of CVS.

6
src/color.c
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@ -283,14 +283,12 @@ void color_update(void)
for (ink = sint->color; ink != NULL; ink = ink->next) {
if (ink->start == NULL) {
ink->start = (regex_t *)nmalloc(sizeof(regex_t));
regcomp(ink->start, fixbounds(ink->start_regex),
REG_EXTENDED | (ink->icase ? REG_ICASE : 0));
regcomp(ink->start, fixbounds(ink->start_regex), ink->rex_flags);
}
if (ink->end_regex != NULL && ink->end == NULL) {
ink->end = (regex_t *)nmalloc(sizeof(regex_t));
regcomp(ink->end, fixbounds(ink->end_regex),
REG_EXTENDED | (ink->icase ? REG_ICASE : 0));
regcomp(ink->end, fixbounds(ink->end_regex), ink->rex_flags);
}
}
}

4
src/nano.h
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@ -209,11 +209,11 @@ typedef struct colortype {
/* This syntax's background color. */
bool bright;
/* Is this color A_BOLD? */
bool icase;
/* Is this regex string case insensitive? */
int pairnum;
/* The color pair number used for this foreground color and
* background color. */
int rex_flags;
/* The regex compilation flags (with or without REG_ICASE). */
char *start_regex;
/* The start (or all) of the regex string. */
regex_t *start;

2
src/proto.h
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@ -561,11 +561,9 @@ void rcfile_error(const char *msg, ...);
char *parse_argument(char *ptr);
#ifndef DISABLE_COLOR
char *parse_next_regex(char *ptr);
bool nregcomp(const char *regex, int eflags);
void parse_syntax(char *ptr);
void parse_includes(char *ptr);
short color_to_short(const char *colorname, bool *bright);
void parse_colors(char *ptr, bool icase);
bool parse_color_names(char *combostr, short *fg, short *bg, bool *bright);
void grab_and_store(const char *kind, char *ptr, regexlisttype **storage);
#endif

22
src/rcfile.c
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@ -244,11 +244,11 @@ char *parse_next_regex(char *ptr)
/* Compile the regular expression regex to see if it's valid. Return
* TRUE if it is, and FALSE otherwise. */
bool nregcomp(const char *regex, int eflags)
bool nregcomp(const char *regex, int compile_flags)
{
regex_t preg;
const char *r = fixbounds(regex);
int rc = regcomp(&preg, r, REG_EXTENDED | eflags);
int rc = regcomp(&preg, r, compile_flags);
if (rc != 0) {
size_t len = regerror(rc, &preg, NULL, 0);
@ -622,9 +622,9 @@ short color_to_short(const char *colorname, bool *bright)
}
/* Parse the color string in the line at ptr, and add it to the current
* file's associated colors. If icase is TRUE, treat the color string
* as case insensitive. */
void parse_colors(char *ptr, bool icase)
* file's associated colors. rex_flags are the regex compilation flags
* to use, excluding or including REG_ICASE for case (in)sensitivity. */
void parse_colors(char *ptr, int rex_flags)
{
short fg, bg;
bool bright = FALSE;
@ -680,7 +680,7 @@ void parse_colors(char *ptr, bool icase)
if (ptr == NULL)
break;
goodstart = nregcomp(fgstr, icase ? REG_ICASE : 0);
goodstart = nregcomp(fgstr, rex_flags);
/* If the starting regex is valid, initialize a new color struct,
* and hook it in at the tail of the linked list. */
@ -690,7 +690,7 @@ void parse_colors(char *ptr, bool icase)
newcolor->fg = fg;
newcolor->bg = bg;
newcolor->bright = bright;
newcolor->icase = icase;
newcolor->rex_flags = rex_flags;
newcolor->start_regex = mallocstrcpy(NULL, fgstr);
newcolor->start = NULL;
@ -736,7 +736,7 @@ void parse_colors(char *ptr, bool icase)
continue;
/* If it's valid, save the ending regex string. */
if (nregcomp(fgstr, icase ? REG_ICASE : 0))
if (nregcomp(fgstr, rex_flags))
newcolor->end_regex = mallocstrcpy(NULL, fgstr);
/* Lame way to skip another static counter. */
@ -830,7 +830,7 @@ void grab_and_store(const char *kind, char *ptr, regexlisttype **storage)
return;
/* If the regex string is malformed, skip it. */
if (!nregcomp(regexstring, REG_NOSUB))
if (!nregcomp(regexstring, REG_EXTENDED | REG_NOSUB))
continue;
/* Copy the regex into a struct, and hook this in at the end. */
@ -1009,9 +1009,9 @@ void parse_rcfile(FILE *rcstream
;
#endif
else if (strcasecmp(keyword, "color") == 0)
parse_colors(ptr, FALSE);
parse_colors(ptr, REG_EXTENDED);
else if (strcasecmp(keyword, "icolor") == 0)
parse_colors(ptr, TRUE);
parse_colors(ptr, REG_EXTENDED | REG_ICASE);
else if (strcasecmp(keyword, "linter") == 0)
pick_up_name("linter", ptr, &live_syntax->linter);
else if (strcasecmp(keyword, "formatter") == 0)