1 #pragma src "/sys/src/libregexp"
2 #pragma lib "libregexp.a"
4 typedef struct Resub Resub;
5 typedef struct Reclass Reclass;
6 typedef struct Reinst Reinst;
7 typedef struct Reprog Reprog;
10 * Sub expression matches
26 * character class, each pair of rune's defines a range
34 * Machine instructions
39 Reclass *cp; /* class pointer */
40 Rune r; /* character */
41 int subid; /* sub-expression id for RBRA and LBRA */
42 Reinst *right; /* right child of OR */
44 union { /* regexp relies on these two being in the same union */
45 Reinst *left; /* left child of OR */
46 Reinst *next; /* next instruction for CAT & LBRA */
51 * Reprogram definition
54 Reinst *startinst; /* start pc */
55 Reclass class[16]; /* .data */
56 Reinst firstinst[5]; /* .text */
59 extern Reprog *regcomp(char*);
60 extern Reprog *regcomplit(char*);
61 extern Reprog *regcompnl(char*);
62 extern void regerror(char*);
63 extern int regexec(Reprog*, char*, Resub*, int);
64 extern void regsub(char*, char*, int, Resub*, int);
65 extern int rregexec(Reprog*, Rune*, Resub*, int);
66 extern void rregsub(Rune*, Rune*, int, Resub*, int);