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#include "fetchmail.h"
#include <regex.h>
int regex_ere_search(const char *restrict regexpattern, const char *restrict ins)
/** regex_ere_search matches \a ins case-insensitively against the extended POSIX regular expression \a regexpattern.
* \return 1 for a match, 0 for no match, -1 for an error it has already report()ed.
*/
{
regex_t re;
int rcerr = regcomp(&re, regexpattern, REG_EXTENDED | REG_ICASE | REG_NOSUB);
if (rcerr) {
size_t errsiz = regerror(rcerr, &re, NULL, 0);
char *errbuf = (char *)(errsiz ? xmalloc(errsiz) : NULL);
(void)regerror(rcerr, &re, errbuf, errsiz);
report(stderr, GT_("Internal error: regex_ere_search could not compile pattern %s: %s\n"), regexpattern, errbuf ? errbuf : GT_("(unknown regcomp error)"));
xfree(errbuf);
return -1;
}
int match = regexec(&re, ins, 0, NULL, 0); // 0 for match, REG_NOMATCH for not matched
regfree(&re);
return !match;
}
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