Man page - re_comp(3)

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Manual

re_comp

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
STANDARDS
HISTORY
SEE ALSO

NAME

re_comp, re_exec - BSD regex functions

LIBRARY

Standard C library ( libc , -lc )

SYNOPSIS

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

[[deprecated]] char *re_comp(const char * regex );
[[deprecated]] 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’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).

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STANDARDS

None.

HISTORY

4.3BSD.

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

SEE ALSO

regcomp (3), regex (7), GNU regex manual