5 static constmap_hash hash(s,len)
15 if (ch <= 'Z' - 'A') ch += 'a' - 'A';
16 h = ((h << 5) + h) ^ ch;
22 char *constmap(cm,s,len)
30 pos = cm->first[h & cm->mask];
33 if (h == cm->hash[pos])
34 if (len == cm->inputlen[pos])
35 if (!case_diffb(cm->input[pos],len,s))
36 return cm->input[pos] + cm->inputlen[pos] + 1;
42 int constmap_init(cm,s,len,flagcolon)
55 for (j = 0;j < len;++j) if (!s[j]) ++cm->num;
58 while (h && (h < cm->num)) h += h;
61 cm->first = (int *) alloc(sizeof(int) * h);
64 cm->input = (char **) alloc(sizeof(char *) * cm->num);
67 cm->inputlen = (int *) alloc(sizeof(int) * cm->num);
70 cm->hash = (constmap_hash *) alloc(sizeof(constmap_hash) * cm->num);
73 cm->next = (int *) alloc(sizeof(int) * cm->num);
76 for (h = 0;h <= cm->mask;++h)
80 for (j = 0;j < len;++j)
89 if (k >= j) { i = j + 1; continue; }
92 cm->input[pos] = s + i;
93 cm->inputlen[pos] = k;
97 cm->next[pos] = cm->first[h];
104 alloc_free(cm->hash);
106 alloc_free(cm->inputlen);
108 alloc_free(cm->input);
110 alloc_free(cm->first);
115 void constmap_free(cm)
118 alloc_free(cm->next);
119 alloc_free(cm->hash);
120 alloc_free(cm->inputlen);
121 alloc_free(cm->input);
122 alloc_free(cm->first);