NAME

regexp.h — regular-expression declarations (LEGACY)

SYNOPSIS

#include <regexp.h>

DESCRIPTION

In the <regexp.h> header, each of the following is declared as a function, or defined as a macro, or both:

int   advance(const char *string, const char *expbuf);
char *compile(char *instring, char *expbuf, const char *endbuf,
         int eof);
int   step(const char *string, const char *expbuf);

and the following are declared as external variables: extern char *loc1; extern char *loc2; extern char *locs;

APPLICATION USAGE

This header is kept for historical reasons. New applications should use the regcomp(3) , regexec(3) , regerror(3) and regfree(3) functions, and the <regex.h> header, which provide full internationalised regular expression functionality compatible with the ISO POSIX-2 standard and the XBD specification, Regular Expressions .

FUTURE DIRECTIONS

None.

SEE ALSO

regexp(3) , <regex.h> .