2 * Copyright (C) 1994, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.12 1995-09-14 11:53:02 adam
8 * Grep handle function parameter info is const now.
10 * Revision 1.11 1995/09/04 09:09:51 adam
11 * String arg in dict lookup is const.
14 * Revision 1.10 1994/10/05 12:16:58 adam
15 * Pagesize is a resource now.
17 * Revision 1.9 1994/10/04 12:08:19 adam
20 * Revision 1.8 1994/10/03 17:23:11 adam
21 * First version of dictionary lookup with regular expressions and errors.
23 * Revision 1.7 1994/09/22 10:44:47 adam
24 * Don't remember what changed!!
26 * Revision 1.6 1994/09/16 15:39:21 adam
27 * Initial code of lookup - not tested yet.
29 * Revision 1.5 1994/09/06 13:05:29 adam
30 * Further development of insertion. Some special cases are
31 * not properly handled yet! assert(0) are put here. The
32 * binary search in each page definitely reduce usr CPU.
34 * Revision 1.4 1994/09/01 17:44:40 adam
35 * Work on insertion in dictionary. Not finished yet.
37 * Revision 1.3 1994/08/18 12:41:12 adam
38 * Some development of dictionary. Not finished at all!
40 * Revision 1.2 1994/08/17 13:32:33 adam
41 * Use cache in dict - not in bfile.
43 * Revision 1.1 1994/08/16 16:26:53 adam
53 typedef unsigned Dict_ptr;
54 typedef char Dict_char;
59 Dict_ptr free_list, last;
62 struct Dict_file_block
64 struct Dict_file_block *h_next, **h_prev;
65 struct Dict_file_block *lru_next, *lru_prev;
71 typedef struct Dict_file_struct
76 struct Dict_file_block *all_blocks;
77 struct Dict_file_block *free_list;
78 struct Dict_file_block **hash_array;
80 struct Dict_file_block *lru_back, *lru_front;
89 typedef struct Dict_struct {
92 struct Dict_head head;
96 #define DICT_MAGIC "dict00"
98 #define DICT_DEFAULT_PAGESIZE "8192"
100 int dict_bf_readp (Dict_BFile bf, int no, void **bufp);
101 int dict_bf_newp (Dict_BFile bf, int no, void **bufp);
102 int dict_bf_touch (Dict_BFile bf, int no);
103 void dict_bf_flush_blocks (Dict_BFile bf, int no_to_flush);
104 Dict_BFile dict_bf_open (const char *name, int block_size, int cache, int rw);
105 int dict_bf_close (Dict_BFile dbf);
107 Dict dict_open (const char *name, int cache, int rw);
108 int dict_close (Dict dict);
109 int dict_insert (Dict dict, const Dict_char *p, int userlen,
111 char *dict_lookup (Dict dict, const Dict_char *p);
112 int dict_lookup_ec (Dict dict, Dict_char *p, int range,
113 int (*f)(Dict_char *name));
114 int dict_lookup_grep (Dict dict, Dict_char *p, int range,
115 int (*f)(Dict_char *name, const char *info));
116 int dict_strcmp (const Dict_char *s1, const Dict_char *s2);
117 int dict_strlen (const Dict_char *s);
120 #define DICT_type(x) 0[(Dict_ptr*) x]
121 #define DICT_backptr(x) 1[(Dict_ptr*) x]
122 #define DICT_nextptr(x) 2[(Dict_ptr*) x]
123 #define DICT_nodir(x) 0[(short*)((char*)(x)+3*sizeof(Dict_ptr))]
124 #define DICT_size(x) 1[(short*)((char*)(x)+3*sizeof(Dict_ptr))]
125 #define DICT_infoffset (3*sizeof(Dict_ptr)+2*sizeof(short))
126 #define DICT_pagesize(x) ((x)->head.page_size)
128 #define DICT_to_str(x) sizeof(Dict_info)+sizeof(Dict_ptr)
132 backptr pointer to parent
133 nextptr pointer to next page (if any)
135 size size of strings,info,ptr entries