regcomp.h (1994B)
1 /* 2 * substitution list 3 */ 4 5 #define NSUBEXP 32 6 typedef struct Resublist Resublist; 7 struct Resublist 8 { 9 Resub m[NSUBEXP]; 10 }; 11 12 /* max character classes per program */ 13 extern Reprog RePrOg; 14 #define NCLASS (sizeof(RePrOg.class)/sizeof(Reclass)) 15 16 /* max rune ranges per character class */ 17 #define NCCRUNE (sizeof(Reclass)/sizeof(Rune)) 18 19 /* 20 * Actions and Tokens (Reinst types) 21 * 22 * 02xx are operators, value == precedence 23 * 03xx are tokens, i.e. operands for operators 24 */ 25 #define RUNE 0177 26 #define OPERATOR 0200 /* Bitmask of all operators */ 27 #define START 0200 /* Start, used for marker on stack */ 28 #define RBRA 0201 /* Right bracket, ) */ 29 #define LBRA 0202 /* Left bracket, ( */ 30 #define OR 0203 /* Alternation, | */ 31 #define CAT 0204 /* Concatentation, implicit operator */ 32 #define STAR 0205 /* Closure, * */ 33 #define PLUS 0206 /* a+ == aa* */ 34 #define QUEST 0207 /* a? == a|nothing, i.e. 0 or 1 a's */ 35 #define ANY 0300 /* Any character except newline, . */ 36 #define ANYNL 0301 /* Any character including newline, . */ 37 #define NOP 0302 /* No operation, internal use only */ 38 #define BOL 0303 /* Beginning of line, ^ */ 39 #define EOL 0304 /* End of line, $ */ 40 #define CCLASS 0305 /* Character class, [] */ 41 #define NCCLASS 0306 /* Negated character class, [] */ 42 #define END 0377 /* Terminate: match found */ 43 44 /* 45 * regexec execution lists 46 */ 47 #define LISTSIZE 10 48 #define BIGLISTSIZE (10*LISTSIZE) 49 typedef struct Relist Relist; 50 struct Relist 51 { 52 Reinst* inst; /* Reinstruction of the thread */ 53 Resublist se; /* matched subexpressions in this thread */ 54 }; 55 typedef struct Reljunk Reljunk; 56 struct Reljunk 57 { 58 Relist* relist[2]; 59 Relist* reliste[2]; 60 int starttype; 61 Rune startchar; 62 char* starts; 63 char* eol; 64 Rune* rstarts; 65 Rune* reol; 66 }; 67 68 extern Relist* _renewthread(Relist*, Reinst*, int, Resublist*); 69 extern void _renewmatch(Resub*, int, Resublist*); 70 extern Relist* _renewemptythread(Relist*, Reinst*, int, char*); 71 extern Relist* _rrenewemptythread(Relist*, Reinst*, int, Rune*);