Difference between revisions of "Tip 15: GCC Regex Library"
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To include regex in C (or C++) you must include: | To include regex in C (or C++) you must include: | ||
| − | #include <sys/types.h> | + | #include <sys/types.h> |
| − | #include <regex.h> | + | #include <regex.h> |
There are 4 available command: | There are 4 available command: | ||
| − | int regcomp(regex_t *, const char *, int); | + | int regcomp(regex_t *, const char *, int); |
| − | int regexec(const regex_t *, const char *, size_t, regmatch_t[], int); | + | int regexec(const regex_t *, const char *, size_t, regmatch_t[], int); |
| − | size_t regerror(int, const regex_t *, char *, size_t); | + | size_t regerror(int, const regex_t *, char *, size_t); |
| − | void regfree(regex_t *); | + | void regfree(regex_t *); |
Beyond that, read the man page [http://pubs.opengroup.org/onlinepubs/007908799/xsh/regex.h.html] | Beyond that, read the man page [http://pubs.opengroup.org/onlinepubs/007908799/xsh/regex.h.html] | ||
Revision as of 00:50, 9 March 2011
The C Regex library is standard with GCC and uses POSIX style regular expressions. This is opposed to Perl style regular expressions which are more common among scripting languages.
To include regex in C (or C++) you must include:
#include <sys/types.h> #include <regex.h>
There are 4 available command:
int regcomp(regex_t *, const char *, int); int regexec(const regex_t *, const char *, size_t, regmatch_t[], int); size_t regerror(int, const regex_t *, char *, size_t); void regfree(regex_t *);
Beyond that, read the man page [1]
