regcomp.h (1885B)
1 /* 2 * substitution list 3 */ 4 #define uchar __reuchar 5 typedef unsigned char uchar; 6 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 7 8 #define NSUBEXP 128 9 typedef struct Resublist Resublist; 10 struct Resublist 11 { 12 Resub m[NSUBEXP]; 13 }; 14 15 /* 16 * Actions and Tokens (Reinst types) 17 * 18 * 02xx are operators, value == precedence 19 * 03xx are tokens, i.e. operands for operators 20 */ 21 #define RUNE 0177 22 #define OPERATOR 0200 /* Bitmask of all operators */ 23 #define START 0200 /* Start, used for marker on stack */ 24 #define RBRA 0201 /* Right bracket, ) */ 25 #define LBRA 0202 /* Left bracket, ( */ 26 #define OR 0203 /* Alternation, | */ 27 #define CAT 0204 /* Concatentation, implicit operator */ 28 #define STAR 0205 /* Closure, * */ 29 #define PLUS 0206 /* a+ == aa* */ 30 #define QUEST 0207 /* a? == a|nothing, i.e. 0 or 1 a's */ 31 #define ANY 0300 /* Any character except newline, . */ 32 #define ANYNL 0301 /* Any character including newline, . */ 33 #define NOP 0302 /* No operation, internal use only */ 34 #define BOL 0303 /* Beginning of line, ^ */ 35 #define EOL 0304 /* End of line, $ */ 36 #define CCLASS 0305 /* Character class, [] */ 37 #define NCCLASS 0306 /* Negated character class, [] */ 38 #define END 0377 /* Terminate: match found */ 39 40 /* 41 * regexec execution lists 42 */ 43 #define LISTSIZE 10 44 #define BIGLISTSIZE (25*LISTSIZE) 45 typedef struct Relist Relist; 46 struct Relist 47 { 48 Reinst* inst; /* Reinstruction of the thread */ 49 Resublist se; /* matched subexpressions in this thread */ 50 }; 51 typedef struct Reljunk Reljunk; 52 struct Reljunk 53 { 54 Relist* relist[2]; 55 Relist* reliste[2]; 56 int starttype; 57 Rune startchar; 58 char* starts; 59 char* eol; 60 Rune* rstarts; 61 Rune* reol; 62 }; 63 64 extern Relist* _renewthread(Relist*, Reinst*, int, Resublist*); 65 extern void _renewmatch(Resub*, int, Resublist*); 66 extern Relist* _renewemptythread(Relist*, Reinst*, int, char*); 67 extern Relist* _rrenewemptythread(Relist*, Reinst*, int, Rune*);