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- #ifndef _REGEXP9H_
- #define _REGEXP9H_ 1
- #include <utf.h>
- typedef struct Resub Resub;
- typedef struct Reclass Reclass;
- typedef struct Reinst Reinst;
- typedef struct Reprog Reprog;
- /*
- * Sub expression matches
- */
- struct Resub{
- union
- {
- char *sp;
- Rune *rsp;
- }s;
- union
- {
- char *ep;
- Rune *rep;
- }e;
- };
- /*
- * character class, each pair of rune's defines a range
- */
- struct Reclass{
- Rune *end;
- Rune spans[64];
- };
- /*
- * Machine instructions
- */
- struct Reinst{
- int type;
- union {
- Reclass *cp; /* class pointer */
- Rune r; /* character */
- int subid; /* sub-expression id for RBRA and LBRA */
- Reinst *right; /* right child of OR */
- }u1;
- union { /* regexp relies on these two being in the same union */
- Reinst *left; /* left child of OR */
- Reinst *next; /* next instruction for CAT & LBRA */
- }u2;
- };
- /*
- * Reprogram definition
- */
- struct Reprog{
- Reinst *startinst; /* start pc */
- Reclass class[16]; /* .data */
- Reinst firstinst[5]; /* .text */
- };
- extern Reprog *regcomp(char*);
- extern Reprog *regcomplit(char*);
- extern Reprog *regcompnl(char*);
- extern void regerror(char*);
- extern int regexec(Reprog*, char*, Resub*, int);
- extern void regsub(char*, char*, int, Resub*, int);
- extern int rregexec(Reprog*, Rune*, Resub*, int);
- extern void rregsub(Rune*, Rune*, Resub*, int);
- #endif
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