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Using the now correct parsing of header regexes also for parsing magic regexes.

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This fixes Savannah bug #47292.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5692 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
Benno Schulenberg 2016-02-28 15:16:27 +00:00
parent 3e7591f534
commit 1fba31e7b5
2 changed files with 24 additions and 72 deletions
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3
ChangeLog
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@ -1,6 +1,9 @@
2016-02-28 Benno Schulenberg <bensberg@justemail.net>
* src/rcfile.c (parse_header_exp): Don't continue when something is
wrong -- skip the rest of the line. This fixes Savannah bug #47289.
* src/rcfile.c (parse_header_exp, parse_magic_exp, grab_and_store):
Use the now correct parsing of header regexes also for parsing magic
regexes. This fixes Savannah bug #47292 and saves 50 lines of code.
2016-02-26 Benno Schulenberg <bensberg@justemail.net>
* doc/man/nanorc.5, doc/texinfo/nano.texi, doc/syntax/nanorc.nanorc,

93
src/rcfile.c
View File

@ -855,24 +855,25 @@ bool parse_color_names(char *combostr, short *fg, short *bg, bool *bright)
return TRUE;
}
/* Parse the header-line regexes that may influence the choice of syntax. */
void parse_header_exp(char *ptr)
{
regexlisttype *endheader = NULL;
assert(ptr != NULL);
/* Read regex strings enclosed in double quotes from the line pointed at
* by ptr, and store them quoteless in the passed storage place. */
void grab_and_store(char *ptr, const char *kind, regexlisttype **storage)
{
regexlisttype *lastthing = NULL;
if (syntaxes == NULL) {
rcfile_error(
N_("Cannot add a header regex without a syntax command"));
N_("A '%s' command requires a preceding 'syntax' command"), kind);
return;
}
if (*ptr == '\0') {
rcfile_error(N_("Missing regex string"));
rcfile_error(N_("Missing regex string after '%s' command"), kind);
return;
}
/* Now load the regexes into their part of the struct. */
while (*ptr != '\0') {
const char *regexstring;
regexlisttype *newheader;
@ -893,84 +894,32 @@ void parse_header_exp(char *ptr)
newheader = (regexlisttype *)nmalloc(sizeof(regexlisttype));
/* Save the regex string if it's valid. */
if (nregcomp(regexstring, 0)) {
if (nregcomp(regexstring, REG_NOSUB)) {
newheader->full_regex = mallocstrcpy(NULL, regexstring);
newheader->rgx = NULL;
if (endheader == NULL)
endsyntax->headers = newheader;
if (lastthing == NULL)
*storage = newheader;
else
endheader->next = newheader;
endheader = newheader;
endheader->next = NULL;
lastthing->next = newheader;
lastthing = newheader;
lastthing->next = NULL;
} else
free(newheader);
}
}
/* Parse the header-line regexes that may influence the choice of syntax. */
void parse_header_exp(char *ptr)
{
grab_and_store(ptr, "header", &endsyntax->headers);
}
#ifdef HAVE_LIBMAGIC
/* Parse the magic regexes that may influence the choice of syntax. */
void parse_magic_exp(char *ptr)
{
regexlisttype *endmagic = NULL;
assert(ptr != NULL);
if (syntaxes == NULL) {
rcfile_error(
N_("Cannot add a magic string regex without a syntax command"));
return;
}
if (*ptr == '\0') {
rcfile_error(N_("Missing magic string name"));
return;
}
if (*ptr != '"') {
rcfile_error(
N_("Regex strings must begin and end with a \" character"));
return;
}
#ifdef DEBUG
fprintf(stderr, "Starting a magic type: \"%s\"\n", ptr);
#endif
/* Now load the magic regexes into their part of the struct. */
while (*ptr != '\0') {
const char *regexstring;
regexlisttype *newmagic;
while (*ptr != '"' && *ptr != '\0')
ptr++;
if (*ptr == '\0')
return;
ptr++;
regexstring = ptr;
ptr = parse_next_regex(ptr);
if (ptr == NULL)
break;
newmagic = (regexlisttype *)nmalloc(sizeof(regexlisttype));
/* Save the regex string if it's valid. */
if (nregcomp(regexstring, REG_NOSUB)) {
newmagic->full_regex = mallocstrcpy(NULL, regexstring);
newmagic->rgx = NULL;
if (endmagic == NULL)
endsyntax->magics = newmagic;
else
endmagic->next = newmagic;
endmagic = newmagic;
endmagic->next = NULL;
} else
free(newmagic);
}
grab_and_store(ptr, "magic", &endsyntax->magics);
}
#endif /* HAVE_LIBMAGIC */