1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2010 Index Data.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Index Data nor the names of its contributors
13 * may be used to endorse or promote products derived from this
14 * software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 #include <yaz/yconfig.h>
38 #include <yaz/xmltypes.h>
40 #include <unicode/utypes.h>
44 /** \brief opaque ICU chain */
45 typedef struct icu_chain *yaz_icu_chain_t;
47 /** \brief destroys ICU chain */
48 YAZ_EXPORT void icu_chain_destroy(yaz_icu_chain_t chain);
50 /** \brief constructs ICU chain from XML specification
51 \param xml_node icu_chain XML node - with attribute locale in it
52 \param sort 1 if ICU chain is to deal with sort keys; 0 otherwise
53 \param status May include ICU error code on failure
54 \returns chain ptr or NULL on failure in which case status may hold info
56 YAZ_EXPORT yaz_icu_chain_t icu_chain_xml_config(const xmlNode *xml_node,
59 /** \brief pass string to ICU for parsing/tokenization/etc
60 \param chain ICU chain to be used for parsing
61 \param src8cstr input C string (null-terminated)
62 \param status may include ICU error on failure
66 YAZ_EXPORT int icu_chain_assign_cstr(yaz_icu_chain_t chain,
67 const char * src8cstr,
70 /** \brief returns one token (if any)
71 \param chain ICU chain
72 \param status may include ICU error on failure
73 \retval 0 error or end-of-tokens (no more tokens)
74 \retval >0 token number (1, 3, 3, ..)
76 This function tries to move to "next" token in assigned
77 C-string .. Or returns 0 if no more is to be found
79 YAZ_EXPORT int icu_chain_next_token(yaz_icu_chain_t chain,
82 /** \brief returns token number of last token processed
83 \brief chain ICU chain
84 \returns token number (numbered from 1)
86 YAZ_EXPORT int icu_chain_token_number(yaz_icu_chain_t chain);
88 /** \brief returns display token of last token processed
89 \param chain ICU chain
90 \returns display token string (C string)
91 This function returns display string for last token returned
92 by icu_chain_next_token.
94 YAZ_EXPORT const char * icu_chain_token_display(yaz_icu_chain_t chain);
96 /** \brief returns normalized token of last token processed
97 \param chain ICU chain
98 \returns normalized token string (C string)
99 This function returns normalized string for last token returned
100 by icu_chain_next_token.
102 YAZ_EXPORT const char * icu_chain_token_norm(yaz_icu_chain_t chain);
104 /** \brief returns sortkey token of last token processed
105 \param chain ICU chain
106 \returns sortkey token string (C string)
107 This function returns sortkey string for last token returned
108 by icu_chain_next_token.
110 YAZ_EXPORT const char * icu_chain_token_sortkey(yaz_icu_chain_t chain);
112 /** \brief ICU tokenizer iterator type (opaque) */
113 typedef struct icu_iter *yaz_icu_iter_t;
115 /** \brief create ICU tokenizer iterator from chain
116 \param chain ICU chain
117 \returns ICU iterator
120 yaz_icu_iter_t icu_iter_create(struct icu_chain *chain);
122 /** \brief starts iteration over string
123 \param iter ICU tokenizer iterator
124 \param src8cstr input string (0-terminated)
126 Call icu_iter_next to iterate over each token.
129 void icu_iter_first(yaz_icu_iter_t iter, const char *src8cstr);
131 /** \brief iterates over one token
132 \param iter ICU tokenizer iterator
133 \retval 0 no more tokens (EOF)
134 \retval 1 got one token (use icu_iter_get..-functions)
137 int icu_iter_next(yaz_icu_iter_t iter);
139 /** \brief destroy ICU tokenizer iterator
140 \param iter ICU tokenizer iterator
143 void icu_iter_destroy(yaz_icu_iter_t iter);
145 /** \brief returns ICU normalized token
146 \param iter ICU tokenizer iterator
147 \returns string (0-terminated)
150 const char *icu_iter_get_norm(yaz_icu_iter_t iter);
152 /** \brief returns ICU sortkey string
153 \param iter ICU tokenizer iterator
154 \returns string (0-terminated)
157 const char *icu_iter_get_sortkey(yaz_icu_iter_t iter);
159 /** \brief returns ICU display string
160 \param iter ICU tokenizer iterator
161 \returns string (0-terminated)
164 const char *icu_iter_get_display(yaz_icu_iter_t iter);
166 /** \brief returns ICU token count for iterator
167 \param iter ICU tokenizer iterator
168 \returns token count (1, 2, 3...)
171 int icu_iter_get_token_number(yaz_icu_iter_t iter);
175 #endif /* YAZ_ICU_H */
180 * c-file-style: "Stroustrup"
181 * indent-tabs-mode: nil
183 * vim: shiftwidth=4 tabstop=8 expandtab