2 * Copyright (c) 1995, the EUROPAGATE consortium (see below).
4 * The EUROPAGATE consortium members are:
6 * University College Dublin
7 * Danmarks Teknologiske Videnscenter
8 * An Chomhairle Leabharlanna
9 * Consejo Superior de Investigaciones Cientificas
11 * Permission to use, copy, modify, distribute, and sell this software and
12 * its documentation, in whole or in part, for any purpose, is hereby granted,
15 * 1. This copyright and permission notice appear in all copies of the
16 * software and its documentation. Notices of copyright or attribution
17 * which appear at the beginning of any file must remain unchanged.
19 * 2. The names of EUROPAGATE or the project partners may not be used to
20 * endorse or promote products derived from this software without specific
21 * prior written permission.
23 * 3. Users of this software (implementors and gateway operators) agree to
24 * inform the EUROPAGATE consortium of their use of the software. This
25 * information will be used to evaluate the EUROPAGATE project and the
26 * software, and to plan further developments. The consortium may use
27 * the information in later publications.
29 * 4. Users of this software agree to make their best efforts, when
30 * documenting their use of the software, to acknowledge the EUROPAGATE
31 * consortium, and the role played by the software in their work.
33 * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
34 * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
35 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
36 * IN NO EVENT SHALL THE EUROPAGATE CONSORTIUM OR ITS MEMBERS BE LIABLE
37 * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF
38 * ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
39 * OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND
40 * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
41 * USE OR PERFORMANCE OF THIS SOFTWARE.
49 * Revision 1.10 2001-06-28 12:42:01 adam
50 * Added prototype for ccl_qual_add_special.
52 * Revision 1.9 2001/03/07 13:24:40 adam
53 * Member and_not in Z_Operator is kept for backwards compatibility.
54 * Added support for definition of CCL operators in field spec file.
56 * Revision 1.8 2000/11/16 09:58:02 adam
57 * Implemented local AttributeSet setting for CCL field maps.
59 * Revision 1.7 2000/11/01 14:47:00 adam
60 * Added CCL support for WIN32.
62 * Revision 1.6 2000/10/17 19:50:28 adam
63 * Implemented and-list and or-list for CCL module.
65 * Revision 1.5 2000/05/02 17:19:58 adam
66 * Removed MINUS token.
68 * Revision 1.4 2000/03/14 09:06:11 adam
69 * Added POSIX threads support for frontend server.
71 * Revision 1.3 2000/02/08 10:39:53 adam
72 * Added a few functions to set name of operands, etc.
74 * Revision 1.2 2000/01/31 13:15:21 adam
75 * Removed uses of assert(3). Cleanup of ODR. CCL parser update so
76 * that some characters are not surrounded by spaces in resulting term.
79 * Revision 1.1 1999/11/30 13:47:11 adam
80 * Improved installation. Moved header files to include/yaz.
82 * Revision 1.9 1998/02/11 11:53:33 adam
83 * Changed code so that it compiles as C++.
85 * Revision 1.8 1997/09/29 09:01:19 adam
86 * Changed CCL parser to be thread safe. New type, CCL-parser, declared
87 * and a create/destructor ccl_parser_create/ccl_parser_destroy has been
90 * Revision 1.7 1997/09/01 08:49:47 adam
91 * New windows NT/95 port using MSV5.0. To export DLL functions the
92 * YAZ_EXPORT modifier was added. Defined in yconfig.h.
94 * Revision 1.6 1997/05/14 06:53:37 adam
97 * Revision 1.5 1997/04/30 08:52:08 quinn
100 * Revision 1.4 1996/10/11 15:02:26 adam
101 * CCL parser from Europagate Email gateway 1.0.
103 * Revision 1.10 1996/01/08 08:41:22 adam
106 * Revision 1.9 1995/07/20 08:15:16 adam
107 * Bug fix: Token value for comma and OR were the same!
109 * Revision 1.8 1995/07/11 12:28:34 adam
110 * New function: ccl_token_simple (split into simple tokens) and
111 * ccl_token_del (delete tokens).
113 * Revision 1.7 1995/05/16 09:39:38 adam
116 * Revision 1.6 1995/05/11 14:04:03 adam
117 * Changes in the reading of qualifier(s). New function: ccl_qual_fitem.
118 * New variable ccl_case_sensitive, which controls whether reserved
119 * words and field names are case sensitive or not.
121 * Revision 1.5 1995/02/23 08:32:11 adam
124 * Revision 1.3 1995/02/16 13:20:10 adam
127 * Revision 1.2 1995/02/15 17:43:08 adam
128 * Minor changes to the ccl interface. Bug fix in iso2709 module.
130 * Revision 1.1 1995/02/14 19:55:21 adam
131 * Header files ccl.h/cclp.h are gone! They have been merged an
132 * moved to ../include/ccl.h.
139 #include <yaz/yconfig.h>
144 /* CCL error numbers */
146 #define CCL_ERR_TERM_EXPECTED 1
147 #define CCL_ERR_RP_EXPECTED 2
148 #define CCL_ERR_SETNAME_EXPECTED 3
149 #define CCL_ERR_OP_EXPECTED 4
150 #define CCL_ERR_BAD_RP 5
151 #define CCL_ERR_UNKNOWN_QUAL 6
152 #define CCL_ERR_DOUBLE_QUAL 7
153 #define CCL_ERR_EQ_EXPECTED 8
154 #define CCL_ERR_BAD_RELATION 9
155 #define CCL_ERR_TRUNC_NOT_LEFT 10
156 #define CCL_ERR_TRUNC_NOT_BOTH 11
157 #define CCL_ERR_TRUNC_NOT_RIGHT 12
159 /* attribute pair (type, value) */
160 struct ccl_rpn_attr {
161 struct ccl_rpn_attr *next;
167 #define CCL_RPN_AND 1
169 #define CCL_RPN_NOT 3
170 #define CCL_RPN_TERM 4
171 #define CCL_RPN_SET 5
172 #define CCL_RPN_PROX 6
174 /* RPN tree structure */
175 struct ccl_rpn_node {
178 struct ccl_rpn_node *p[2];
181 struct ccl_rpn_attr *attr_list;
187 typedef struct ccl_qualifiers *CCL_bibset;
194 1-6 relation (<, <=, =, >=, >, <>)
200 3 any position in field
203 0 word/phrase auto select
210 100 date (un-normalized)
211 101 name (normalized)
212 102 name (un-normalized)
217 #define CCL_BIB1_USE 1
218 #define CCL_BIB1_REL 2
219 #define CCL_BIB1_POS 3
220 #define CCL_BIB1_STR 4
221 #define CCL_BIB1_TRU 5
222 #define CCL_BIB1_COM 6
224 #define CCL_BIB1_STR_WP (-1)
225 #define CCL_BIB1_STR_AND_LIST (-2)
226 #define CCL_BIB1_STR_OR_LIST (-3)
227 #define CCL_BIB1_REL_ORDER (-1)
229 #define CCL_BIB1_TRU_CAN_LEFT (-1)
230 #define CCL_BIB1_TRU_CAN_RIGHT (-2)
231 #define CCL_BIB1_TRU_CAN_BOTH (-3)
232 #define CCL_BIB1_TRU_CAN_NONE (-4)
234 #define CCL_TOK_EOL 0
235 #define CCL_TOK_TERM 1
236 #define CCL_TOK_REL 2
238 #define CCL_TOK_PROX 4
241 #define CCL_TOK_COMMA 7
242 #define CCL_TOK_AND 8
244 #define CCL_TOK_NOT 10
245 #define CCL_TOK_SET 11
252 struct ccl_token *next;
253 struct ccl_token *prev;
257 struct ccl_qualifier {
259 struct ccl_rpn_attr *attr_list;
260 struct ccl_qualifier *next;
264 /* current lookahead token */
265 struct ccl_token *look_token;
267 /* holds error code if error occur (and approx position of error) */
269 const char *error_pos;
278 int ccl_case_sensitive;
281 typedef struct ccl_parser *CCL_parser;
283 /* Generate tokens from command string - obeys all CCL opererators */
284 YAZ_EXPORT struct ccl_token *ccl_parser_tokenize (CCL_parser cclp,
285 const char *command);
286 YAZ_EXPORT struct ccl_token *ccl_tokenize (const char *command);
288 /* Generate tokens from command string - oebeys only simple tokens and
290 YAZ_EXPORT struct ccl_token *ccl_token_simple (const char *command);
292 /* Delete token list */
293 YAZ_EXPORT void ccl_token_del (struct ccl_token *list);
295 /* Parse CCL Find command - NULL-terminated string */
296 YAZ_EXPORT struct ccl_rpn_node *ccl_find_str (CCL_bibset bibset,
297 const char *str, int *error, int *pos);
299 /* Parse CCL Find command - Tokens read by ccl_tokenize */
300 YAZ_EXPORT struct ccl_rpn_node *ccl_find (CCL_bibset abibset, struct ccl_token *list,
301 int *error, const char **pos);
303 /* Parse CCL Find command */
304 YAZ_EXPORT struct ccl_rpn_node *ccl_parser_find (CCL_parser cclp, struct ccl_token *list);
306 /* Set various OPs */
307 YAZ_EXPORT void ccl_parser_set_op_and (CCL_parser p, const char *op);
308 YAZ_EXPORT void ccl_parser_set_op_or (CCL_parser p, const char *op);
309 YAZ_EXPORT void ccl_parser_set_op_not (CCL_parser p, const char *op);
310 YAZ_EXPORT void ccl_parser_set_op_set (CCL_parser p, const char *op);
312 YAZ_EXPORT void ccl_parser_set_case (CCL_parser p, int case_sensitivity_flag);
314 /* Return english-readable error message */
315 YAZ_EXPORT const char *ccl_err_msg (int ccl_errno);
317 /* Delete RPN tree returned by ccl_find */
318 YAZ_EXPORT void ccl_rpn_delete (struct ccl_rpn_node *rpn);
320 /* Dump RPN tree in readable format to fd_out */
321 YAZ_EXPORT void ccl_pr_tree (struct ccl_rpn_node *rpn, FILE *fd_out);
323 /* Add CCL qualifier */
324 YAZ_EXPORT void ccl_qual_add (CCL_bibset b, const char *name, int no,
327 YAZ_EXPORT void ccl_qual_add_set (CCL_bibset b, const char *name, int no,
328 int *attr, char **attsets);
330 YAZ_EXPORT void ccl_qual_add_special (CCL_bibset bibset, const char *n, const char *v);
332 /* Read CCL qualifier list spec from file inf */
333 YAZ_EXPORT void ccl_qual_file (CCL_bibset bibset, FILE *inf);
335 /* Read CCL qualifier list spec from file inf */
336 YAZ_EXPORT int ccl_qual_fname (CCL_bibset bibset, const char *fname);
338 /* Add CCL qualifier by using single-line spec */
339 YAZ_EXPORT void ccl_qual_fitem (CCL_bibset bibset, const char *cp, const char *qual_name);
341 /* Make CCL qualifier set */
342 YAZ_EXPORT CCL_bibset ccl_qual_mk (void);
344 /* Delete CCL qualifier set */
345 YAZ_EXPORT void ccl_qual_rm (CCL_bibset *b);
347 /* Char-to-upper function */
348 extern int (*ccl_toupper)(int c);
350 /* String utilities */
351 YAZ_EXPORT int ccl_stricmp (const char *s1, const char *s2);
352 YAZ_EXPORT int ccl_memicmp (const char *s1, const char *s2, size_t n);
354 /* Search for qualifier 'name' in set 'b'. */
355 YAZ_EXPORT struct ccl_rpn_attr *ccl_qual_search (CCL_parser cclp, const char *name,
358 /* Create CCL parser */
359 YAZ_EXPORT CCL_parser ccl_parser_create (void);
361 /* Destroy CCL parser */
362 YAZ_EXPORT void ccl_parser_destroy (CCL_parser p);
364 YAZ_EXPORT char *ccl_strdup (const char *str);
366 YAZ_EXPORT const char *ccl_qual_search_special (CCL_bibset b,
370 #define ccl_assert(x) ;