diff options
Diffstat (limited to 'b.c')
| -rw-r--r-- | b.c | 16 |
1 files changed, 13 insertions, 3 deletions
@@ -263,6 +263,8 @@ void penter(Node *p) /* set up parent pointers and leaf indices */ parent(left(p)) = p; parent(right(p)) = p; break; + case ZERO: + break; default: /* can't happen */ FATAL("can't happen: unknown type %d in penter", type(p)); break; @@ -277,6 +279,7 @@ void freetr(Node *p) /* free parse tree */ xfree(p); break; UNARY + case ZERO: freetr(left(p)); xfree(p); break; @@ -436,6 +439,8 @@ void cfoll(fa *f, Node *v) /* enter follow set of each leaf of vertex v into lfo cfoll(f,left(v)); cfoll(f,right(v)); break; + case ZERO: + break; default: /* can't happen */ FATAL("can't happen: unknown type %d in cfoll", type(v)); } @@ -479,6 +484,8 @@ int first(Node *p) /* collects initially active leaves of p into setvec */ b = first(right(p)); if (first(left(p)) == 0 || b == 0) return(0); return(1); + case ZERO: + return 0; } FATAL("can't happen: unknown type %d in first", type(p)); /* can't happen */ return(-1); @@ -838,6 +845,9 @@ Node *unary(Node *np) case QUEST: rtok = relex(); return (unary(op2(QUEST, np, NIL))); + case ZERO: + rtok = relex(); + return (unary(op2(ZERO, np, NIL))); default: return (np); } @@ -873,7 +883,7 @@ int (xisblank)(int c) #endif -struct charclass { +static const struct charclass { const char *cc_name; int cc_namelen; int (*cc_func)(int); @@ -1017,7 +1027,7 @@ int relex(void) /* lexical analyzer for reparse */ static uschar *buf = NULL; static int bufsz = 100; uschar *bp; - struct charclass *cc; + const struct charclass *cc; int i; int num, m; bool commafound, digitfound; @@ -1191,7 +1201,7 @@ rescan: if (repeat(starttok, prestr-starttok, lastatom, startreptok - lastatom, n, m) > 0) { if (n == 0 && m == 0) { - return EMPTYRE; + return ZERO; } /* must rescan input for next token */ goto rescan; |