regexp.h

   1 /*
   2  * Definitions etc. for regexp(3) routines.
   3  *
   4  * Caveat:  this is V8 regexp(3) [actually, a reimplementation thereof],
   5  * not the System V one.
   6  *
   7  * 11/04/02 (seiwald) - const-ing for string literals
   8  */
   9
  10 #define NSUBEXP  10
  11 typedef struct regexp {
  12   const char *startp[NSUBEXP];
  13   const char *endp[NSUBEXP];
  14   char regstart;    /* Internal use only. */
  15   char reganch;   /* Internal use only. */
  16   char *regmust;    /* Internal use only. */
  17   int regmlen;    /* Internal use only. */
  18   char program[1];  /* Unwarranted chumminess with compiler. */
  19 } regexp;
  20
  21 regexp *regcomp( const char *exp );
  22 int regexec( regexp *prog, const char *string );
  23 void regerror( const char *s );
  24
  25 /*
  26  * The first byte of the regexp internal "program" is actually this magic
  27  * number; the start node begins in the second byte.
  28  */
  29 #define MAGIC 0234