#ifndef regexp_h#define regexp_h #define regcompx js_regcompx#define regfreex js_regfreex#define regcomp js_regcomp#define regexec js_regexec#define regfree js_regfree typedef struct Reprog Reprog;#pragma incomplete Reprogtypedef struct Resub Resub; Reprog *regcompx(void *(*alloc)(void *ctx, void *p, int n), void *ctx,	const char *pattern, int cflags, const char **errorp);void regfreex(void *(*alloc)(void *ctx, void *p, int n), void *ctx,	Reprog *prog); Reprog *regcomp(const char *pattern, int cflags, const char **errorp);int regexec(Reprog *prog, const char *string, Resub *sub, int eflags);void regfree(Reprog *prog); enum {	/* regcomp flags */	REG_ICASE = 1,	REG_NEWLINE = 2, 	/* regexec flags */	REG_NOTBOL = 4,}; /* If you redefine REG_MAXSUB, you must make sure both the calling * code and the regexp.c compilation unit use the same value! */#ifndef REG_MAXSUB#define REG_MAXSUB 10#endif struct Resub {	int nsub;	struct {		const char *sp;		const char *ep;	} sub[REG_MAXSUB];}; #endif