commands/awk/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 #define ushort  unsigned short
   8 #define CHARBITS 0xffff
   9 #define NSUBEXP  10
  10 typedef struct regexp {
  11         ushort *startp[NSUBEXP];
  12         ushort *endp[NSUBEXP];
  13         ushort regstart;                /* Internal use only. */
  14         ushort reganch;         /* Internal use only. */
  15         ushort *regmust;                /* Internal use only. */
  16         int regmlen;            /* Internal use only. */
  17         ushort program[1];      /* Unwarranted chumminess with compiler. */
  18 } regexp;
  19
  20 extern regexp *regcomp();
  21 extern int regexec();
  22 extern int regsub();
  23 extern int regerror();