1 /* Ident --- unique handles for identifiers
2 Copyright (C) 1995, 1996 Markus Armbruster
3 All rights reserved. */
22 /* Caution: strings _not_ zero-terminated! */
23 #define ID_FROM_STR(str, len) \
24 (assert ((len) > 0), \
25 (const set_entry *)set_hinsert (id_set, (str), (len), ID_HASH ((str), (len))))
26 #define ID_TO_STR(id) ((const char *)&(id)->dptr[0])
27 #define ID_TO_STRLEN(id) ((id)->size)
28 #define ID_TO_HASH(id) ((long)(id) + (id)->hash)
30 /* Vormals Debugunterstuetzung, entfernt (debug.h). */
31 # define ID_VRFY(id) ((void)0)
34 # define IDS_VRFY(id) ((void)0)
36 # define IDS_VRFY(id) ids_vrfy ((id))
37 static void ids_vrfy (ident **id);
41 # define id_stats() set_stats (id_set)
43 # define id_stats() ((void)0)
48 #define XX_USER(name) ident *id_##name;
49 #define XX_INTERNAL(name, str) XX_USER(name)
55 #if 0 /* nowhere used */
57 new_id_derived (const char *pfx, ident *id)
59 int pfx_len = strlen (pfx);
60 int len = pfx_len + ID_TO_STRLEN (id);
61 char *str = alloca (len);
63 memcpy (str, pfx, pfx_len);
64 memcpy (str+pfx_len, ID_TO_STR (id), ID_TO_STRLEN (id));
65 return ID_FROM_STR (str, pfx_len + ID_TO_STRLEN (id));
70 new_id_internal (void)
72 static char str[] = "_0000000";
76 while (++str[i] == '9'+1) {
78 /* if following assertion fails, we get called far too often ;-) */
81 assert (('0' <= str[i]) && (str[i] <= '9'));
83 return ID_FROM_STR (str, sizeof (str) - 1);
88 id_is_internal (ident *id)
90 assert (ID_TO_STRLEN (id));
91 return !!ispunct (ID_TO_STR(id)[0]);
102 for (i = 0; i < ARR_LEN (id); ++i) {
110 ident_print (XP_PAR1, const xprintf_info *info ATTRIBUTE((unused)), XP_PARN)
112 ident *id = XP_GETARG (ident *, 0);
113 return XPMR (ID_TO_STR (id), ID_TO_STRLEN (id));
120 id_set = new_set (memcmp, TUNE_NIDENTS);
122 #define XX_USER(name) id_##name = ID_FROM_STR(#name, sizeof(#name)- 1);
123 #define XX_INTERNAL(name, str) id_##name = ID_FROM_STR((str), sizeof((str))-1);
129 INLINE ident *id_from_str (const char *str, int len) {
131 return (const set_entry *) set_hinsert (id_set,
134 ID_HASH ((str), (len)));
137 INLINE const char *id_to_str (ident *id) {
138 return ((const char *)&(id)->dptr[0]);
141 INLINE int id_to_strlen(ident *id) {
145 int id_is_prefix (ident *prefix, ident *id) {
146 if (id_to_strlen(prefix) > id_to_strlen(id)) return 0;
147 if (0 == memcmp(&(prefix->dptr[0]), &(id->dptr[0]), id_to_strlen(prefix)))
152 int id_is_suffix (ident *suffix, ident *id) {
153 int suflen = id_to_strlen(suffix);
154 int idlen = id_to_strlen(id);
156 if (suflen > idlen) return 0;
158 part = (char *) &id->dptr[0];
159 part = part + (idlen - suflen);
160 if (0 == memcmp(&(suffix->dptr[0]), part, suflen))
165 int print_id (ident *id) {
169 int fprint_id (FILE *F, ident *id) {
170 xfprintf(F, "%I", id);