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re_exec (3)

>> re_exec (3) ( FreeBSD man: Библиотечные вызовы )

re_exec (3) ( Русские man: Библиотечные вызовы )

re_exec (3) ( Linux man: Библиотечные вызовы )

BSD mandoc

NAME



re_comp

 
re_exec

 - regular expression handler

LIBRARY

Lb libcompat

SYNOPSIS

#include <unistd.h>
char * re_comp (const char *s);
int re_exec (const char *s);

DESCRIPTION

Bf -symbolic This interface is made obsolete by regex(3). Ef

The re_comp ();
function compiles a string into an internal form suitable for pattern matching. The re_exec ();
function checks the argument string against the last string passed to re_comp (.);

The re_comp ();
function returns 0 if the string Fa s was compiled successfully; otherwise a string containing an error message is returned. If re_comp ();
is passed 0 or a null string, it returns without changing the currently compiled regular expression.

The re_exec ();
function returns 1 if the string Fa s matches the last compiled regular expression, 0 if the string Fa s failed to match the last compiled regular expression, and -1 if the compiled regular expression was invalid (indicating an internal error).

The strings passed to both re_comp ();
and re_exec ();
may have trailing or embedded newline characters; they are terminated by NUL s The regular expressions recognized are described in the manual entry for ed(1), given the above difference.

DIAGNOSTICS

The re_exec ();
function returns -1 for an internal error.

The re_comp ();
function returns one of the following strings if an error occurs:

No previous regular expression,
Regular expression too long,
unmatched \(,
missing ],
too many \(\) pairs,
unmatched \).

HISTORY

The re_comp ();
and re_exec ();
functions appeared in BSD 4.0

Партнёры:

Хостинг:

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Created 1996-2024 by Maxim Chirkov
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