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 1.2 2000-01-31 13:15:21 adam
50 * Removed uses of assert(3). Cleanup of ODR. CCL parser update so
51 * that some characters are not surrounded by spaces in resulting term.
54 * Revision 1.1 1999/11/30 13:47:11 adam
55 * Improved installation. Moved header files to include/yaz.
57 * Revision 1.9 1998/02/11 11:53:33 adam
58 * Changed code so that it compiles as C++.
60 * Revision 1.8 1997/09/29 09:01:19 adam
61 * Changed CCL parser to be thread safe. New type, CCL-parser, declared
62 * and a create/destructor ccl_parser_create/ccl_parser_destroy has been
65 * Revision 1.7 1997/09/01 08:49:47 adam
66 * New windows NT/95 port using MSV5.0. To export DLL functions the
67 * YAZ_EXPORT modifier was added. Defined in yconfig.h.
69 * Revision 1.6 1997/05/14 06:53:37 adam
72 * Revision 1.5 1997/04/30 08:52:08 quinn
75 * Revision 1.4 1996/10/11 15:02:26 adam
76 * CCL parser from Europagate Email gateway 1.0.
78 * Revision 1.10 1996/01/08 08:41:22 adam
81 * Revision 1.9 1995/07/20 08:15:16 adam
82 * Bug fix: Token value for comma and OR were the same!
84 * Revision 1.8 1995/07/11 12:28:34 adam
85 * New function: ccl_token_simple (split into simple tokens) and
86 * ccl_token_del (delete tokens).
88 * Revision 1.7 1995/05/16 09:39:38 adam
91 * Revision 1.6 1995/05/11 14:04:03 adam
92 * Changes in the reading of qualifier(s). New function: ccl_qual_fitem.
93 * New variable ccl_case_sensitive, which controls whether reserved
94 * words and field names are case sensitive or not.
96 * Revision 1.5 1995/02/23 08:32:11 adam
99 * Revision 1.3 1995/02/16 13:20:10 adam
102 * Revision 1.2 1995/02/15 17:43:08 adam
103 * Minor changes to the ccl interface. Bug fix in iso2709 module.
105 * Revision 1.1 1995/02/14 19:55:21 adam
106 * Header files ccl.h/cclp.h are gone! They have been merged an
107 * moved to ../include/ccl.h.
118 /* CCL error numbers */
120 #define CCL_ERR_TERM_EXPECTED 1
121 #define CCL_ERR_RP_EXPECTED 2
122 #define CCL_ERR_SETNAME_EXPECTED 3
123 #define CCL_ERR_OP_EXPECTED 4
124 #define CCL_ERR_BAD_RP 5
125 #define CCL_ERR_UNKNOWN_QUAL 6
126 #define CCL_ERR_DOUBLE_QUAL 7
127 #define CCL_ERR_EQ_EXPECTED 8
128 #define CCL_ERR_BAD_RELATION 9
129 #define CCL_ERR_TRUNC_NOT_LEFT 10
130 #define CCL_ERR_TRUNC_NOT_BOTH 11
131 #define CCL_ERR_TRUNC_NOT_RIGHT 12
133 /* attribute pair (type, value) */
134 struct ccl_rpn_attr {
135 struct ccl_rpn_attr *next;
140 #define CCL_RPN_AND 1
142 #define CCL_RPN_NOT 3
143 #define CCL_RPN_TERM 4
144 #define CCL_RPN_SET 5
145 #define CCL_RPN_PROX 6
147 /* RPN tree structure */
148 struct ccl_rpn_node {
151 struct ccl_rpn_node *p[2];
154 struct ccl_rpn_attr *attr_list;
160 typedef struct ccl_qualifiers *CCL_bibset;
167 1-6 relation (<, <=, =, >=, >, <>)
173 3 any position in field
176 0 word/phrase auto select
183 100 date (un-normalized)
184 101 name (normalized)
185 102 name (un-normalized)
190 #define CCL_BIB1_USE 1
191 #define CCL_BIB1_REL 2
192 #define CCL_BIB1_POS 3
193 #define CCL_BIB1_STR 4
194 #define CCL_BIB1_TRU 5
195 #define CCL_BIB1_COM 6
197 #define CCL_BIB1_STR_WP (-1)
198 #define CCL_BIB1_REL_ORDER (-1)
200 #define CCL_BIB1_TRU_CAN_LEFT (-1)
201 #define CCL_BIB1_TRU_CAN_RIGHT (-2)
202 #define CCL_BIB1_TRU_CAN_BOTH (-3)
203 #define CCL_BIB1_TRU_CAN_NONE (-4)
205 #define CCL_TOK_EOL 0
206 #define CCL_TOK_TERM 1
207 #define CCL_TOK_REL 2
209 #define CCL_TOK_PROX 4
212 #define CCL_TOK_COMMA 7
213 #define CCL_TOK_AND 8
215 #define CCL_TOK_NOT 10
216 #define CCL_TOK_MINUS 11
217 #define CCL_TOK_SET 12
224 struct ccl_token *next;
225 struct ccl_token *prev;
229 struct ccl_qualifier {
231 struct ccl_rpn_attr *attr_list;
232 struct ccl_qualifier *next;
236 /* current lookahead token */
237 struct ccl_token *look_token;
239 /* holds error code if error occur (and approx position of error) */
241 const char *error_pos;
250 int ccl_case_sensitive;
253 typedef struct ccl_parser *CCL_parser;
255 /* Generate tokens from command string - obeys all CCL opererators */
256 struct ccl_token *ccl_parser_tokenize (CCL_parser cclp,
257 const char *command);
258 struct ccl_token *ccl_tokenize (const char *command);
260 /* Generate tokens from command string - oebeys only simple tokens and
262 struct ccl_token *ccl_token_simple (const char *command);
264 /* Delete token list */
265 void ccl_token_del (struct ccl_token *list);
267 /* Parse CCL Find command - NULL-terminated string */
268 struct ccl_rpn_node *ccl_find_str (CCL_bibset bibset,
269 const char *str, int *error, int *pos);
271 /* Parse CCL Find command - Tokens read by ccl_tokenize */
272 struct ccl_rpn_node *ccl_find (CCL_bibset abibset, struct ccl_token *list,
273 int *error, const char **pos);
275 /* Return english-readable error message */
276 const char *ccl_err_msg (int ccl_errno);
278 /* Delete RPN tree returned by ccl_find */
279 void ccl_rpn_delete (struct ccl_rpn_node *rpn);
281 /* Dump RPN tree in readable format to fd_out */
282 void ccl_pr_tree (struct ccl_rpn_node *rpn, FILE *fd_out);
284 /* Add CCL qualifier */
285 void ccl_qual_add (CCL_bibset b, const char *name, int no, int *attr);
287 /* Read CCL qualifier list spec from file inf */
288 void ccl_qual_file (CCL_bibset bibset, FILE *inf);
290 /* Add CCL qualifier by using single-line spec */
291 void ccl_qual_fitem (CCL_bibset bibset, const char *cp, const char *qual_name);
293 /* Make CCL qualifier set */
294 CCL_bibset ccl_qual_mk (void);
296 /* Delete CCL qualifier set */
297 void ccl_qual_rm (CCL_bibset *b);
299 /* Char-to-upper function */
300 extern int (*ccl_toupper)(int c);
302 /* String utilities */
303 int ccl_stricmp (const char *s1, const char *s2);
304 int ccl_memicmp (const char *s1, const char *s2, size_t n);
306 /* Search for qualifier 'name' in set 'b'. */
307 struct ccl_rpn_attr *ccl_qual_search (CCL_parser cclp, const char *name,
310 /* Create CCL parser */
311 CCL_parser ccl_parser_create (void);
313 /* Destroy CCL parser */
314 void ccl_parser_destroy (CCL_parser p);
317 #define ccl_assert(x) ;