NAME

re_comp, re_exec - BSD regex functions

SYNOPSIS

#include <sys/types.h>
#include <regex.h>

char *re_comp(char *regex);
int re_exec(char *string);

DESCRIPTION

re_comp() is used to compile the null-terminated regular expression pointed to by regex. The compiled pattern occupies a static area, the pattern buffer, which is overwritten by subsequent use of re_comp(). If regex is NULL, no operation is performed and the pattern buffer's contents are not altered.

re_exec() is used to assess whether the null-terminated string pointed to by string matches the previously compiled regex.

RETURN VALUE

re_comp() returns NULL on successful compilation of regex otherwise it returns a pointer to an appropriate error message.

re_exec() returns 1 for a successful match, zero for failure.

CONFORMING TO

4.3BSD

SEE ALSO

regex(7) GNU regex manual