78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
#ifndef __REGEXP_H
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#define __REGEXP_H
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#ifndef _REGEXP_EXTENSION
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This header file is an extension to ANSI/POSIX
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#endif
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#pragma lib "/$M/lib/ape/libregexp.a"
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#ifdef UTF
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#define Runeself 0xA0
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#else
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#define Runeself 0
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#endif
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typedef struct Resub Resub;
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typedef struct Reclass Reclass;
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typedef struct Reinst Reinst;
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typedef struct Reprog Reprog;
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/*
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* Sub expression matches
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*/
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struct Resub{
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union
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{
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char *sp;
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wchar_t *rsp;
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} s;
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union
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{
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char *ep;
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wchar_t *rep;
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} e;
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};
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/*
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* character class, each pair of rune's defines a range
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*/
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struct Reclass{
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wchar_t *end;
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wchar_t spans[64];
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};
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/*
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* Machine instructions
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*/
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struct Reinst{
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int type; /* < 0200 ==> literal, otherwise action */
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union {
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Reclass *cp; /* class pointer */
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wchar_t r; /* character */
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int subid; /* sub-expression id for RBRA and LBRA */
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Reinst *right; /* right child of OR */
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} r;
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union { /* regexp relies on these two being in the same union */
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Reinst *left; /* left child of OR */
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Reinst *next; /* next instruction for CAT & LBRA */
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} l;
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};
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/*
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* Reprogram definition
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*/
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struct Reprog{
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Reinst *startinst; /* start pc */
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Reclass class[16]; /* .data */
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Reinst firstinst[5]; /* .text */
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};
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extern Reprog *regcomp(char*);
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extern Reprog *regcomplit(char*);
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extern Reprog *regcompnl(char*);
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extern void regerror(char*);
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extern int regexec(Reprog*, char*, Resub*, int);
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extern void regsub(char*, char*, int, Resub*, int);
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extern int rregexec(Reprog*, wchar_t*, Resub*, int);
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extern void rregsub(wchar_t*, wchar_t*, int, Resub*, int);
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#endif
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