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https://github.com/0intro/wmii
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89 lines
1.7 KiB
C
89 lines
1.7 KiB
C
#ifndef _REGEXP9_H_
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#define _REGEXP9_H_ 1
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#ifdef AUTOLIB
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AUTOLIB(regexp9)
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#endif
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#include <utf.h>
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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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char *sp;
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Rune *rsp;
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}s;
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union {
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char *ep;
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Rune *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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Rune *end;
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Rune 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;
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union {
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Reclass *cp; /* class pointer */
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Rune 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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}u1;
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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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}u2;
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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[32]; /* .data */
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Reinst firstinst[5]; /* .text */
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};
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extern Reprog *regcomp9(char*);
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extern Reprog *regcomplit9(char*);
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extern Reprog *regcompnl9(char*);
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extern void regerror9(char*);
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extern int regexec9(Reprog*, char*, Resub*, int);
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extern void regsub9(char*, char*, int, Resub*, int);
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extern int rregexec9(Reprog*, Rune*, Resub*, int);
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extern void rregsub9(Rune*, Rune*, int, Resub*, int);
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/*
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* Darwin simply cannot handle having routines that
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* override other library routines.
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*/
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#ifndef NOPLAN9DEFINES
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#define regcomp regcomp9
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#define regcomplit regcomplit9
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#define regcompnl regcompnl9
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#define regerror regerror9
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#define regexec regexec9
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#define regsub regsub9
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#define rregexec rregexec9
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#define rregsub rregsub9
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#endif
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#endif
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