src/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 #ifndef JAMH_REGEXP_H
  10 #define JAMH_REGEXP_H
  11
  12
  13 #define NSUBEXP  10
  14 typedef struct regexp {
  15   const char *startp[NSUBEXP];
  16   const char *endp[NSUBEXP];
  17   char regstart; /* Internal use only */
  18   char reganch; /* Internal use only */
  19   char *regmust; /* Internal use only */
  20   int regmlen; /* Internal use only */
  21   char program[1]; /* unwarranted chumminess with compiler */
  22 } regexp;
  23
  24 extern regexp *regcomp (const char *exp);
  25 extern int regexec (regexp *prog, const char *string);
  26 extern void regerror (const char *s);
  27
  28 /*
  29  * The first byte of the regexp internal "program" is actually this magic
  30  * number; the start node begins in the second byte.
  31  */
  32 #define MAGIC 0234
  33
  34
  35 #endif