Linux man pages

Section (3) re_comp

Linux manual pages	Section 3

Name

re_comp, re_exec — BSD regex functions

Synopsis

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

char *re_comp( const char *regex);

int re_exec( const 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_zsingle_quotesz_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.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
`re_comp`(), `re_exec`()	Thread safety	MT-Unsafe

CONFORMING TO

4.3BSD.

NOTES

These functions are obsolete; the functions documented in regcomp(3) should be used instead.

COLOPHON

This page is part of release 4.16 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man−pages/.

  Copyright (C), 1995, Graeme W. Wilford. (Wilf.)

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Wed Jun 14 16:10:28 BST 1995 Wilf. (G.Wilford@ee.surrey.ac.uk)