X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=src%2Ficu_chain.c;h=8cc9a6457fc05b5cc89bb510c933b48b8548b61c;hp=e1addb75184eec178ed2874a608fd41be89ccf8d;hb=9e04bbdbec82ea6f5795dc2d16bd9876ecc7762f;hpb=fbb0389c468253ae678c1169fe0d7a8d8d54e8cb diff --git a/src/icu_chain.c b/src/icu_chain.c index e1addb7..8cc9a64 100644 --- a/src/icu_chain.c +++ b/src/icu_chain.c @@ -17,8 +17,11 @@ #include -#include +#include +#include +#include +#include #include #include #include @@ -29,11 +32,12 @@ enum icu_chain_step_type { ICU_chain_step_type_none, - ICU_chain_step_type_display, /* convert to utf8 display format */ - ICU_chain_step_type_casemap, /* apply utf16 charmap */ - ICU_chain_step_type_transform, /* apply utf16 transform */ - ICU_chain_step_type_tokenize, /* apply utf16 tokenization */ - ICU_chain_step_type_transliterate /* apply utf16 tokenization */ + ICU_chain_step_type_display, /* convert to utf8 display format */ + ICU_chain_step_type_casemap, /* apply utf16 charmap */ + ICU_chain_step_type_transform, /* apply utf16 transform */ + ICU_chain_step_type_tokenize, /* apply utf16 tokenization */ + ICU_chain_step_type_transliterate, /* apply utf16 tokenization */ + YAZ_chain_step_type_stemming /* apply utf16 stemming (YAZ) */ }; struct icu_chain_step @@ -41,11 +45,12 @@ struct icu_chain_step /* type and action object */ enum icu_chain_step_type type; union { - struct icu_casemap * casemap; - struct icu_transform * transform; - struct icu_tokenizer * tokenizer; + struct icu_casemap *casemap; + struct icu_transform *transform; + struct icu_tokenizer *tokenizer; + yaz_stemmer_p stemmer; } u; - struct icu_chain_step * previous; + struct icu_chain_step *previous; }; struct icu_chain @@ -54,10 +59,10 @@ struct icu_chain char *locale; int sort; - UCollator * coll; + UCollator *coll; /* linked list of chain steps */ - struct icu_chain_step * csteps; + struct icu_chain_step *csteps; }; int icu_check_status(UErrorCode status) @@ -70,12 +75,11 @@ int icu_check_status(UErrorCode status) return 1; } -static struct icu_chain_step *icu_chain_step_create( - struct icu_chain * chain, enum icu_chain_step_type type, - const uint8_t * rule, - UErrorCode *status) +static struct icu_chain_step *icu_chain_insert_step( + struct icu_chain *chain, enum icu_chain_step_type type, + const uint8_t *rule, UErrorCode *status) { - struct icu_chain_step * step = 0; + struct icu_chain_step *step = 0; if (!chain || !type || !rule) return 0; @@ -105,14 +109,20 @@ static struct icu_chain_step *icu_chain_step_create( step->u.transform = icu_transform_create("custom", 'f', (const char *) rule, status); break; + case YAZ_chain_step_type_stemming: + step->u.stemmer = yaz_stemmer_create((char *) chain->locale, (const char *) rule, status); + break; default: break; } + step->previous = chain->csteps; + chain->csteps = step; + return step; } -static void icu_chain_step_destroy(struct icu_chain_step * step) +static void icu_chain_step_destroy(struct icu_chain_step *step) { if (!step) return; @@ -133,6 +143,9 @@ static void icu_chain_step_destroy(struct icu_chain_step * step) case ICU_chain_step_type_tokenize: icu_tokenizer_destroy(step->u.tokenizer); break; + case YAZ_chain_step_type_stemming: + yaz_stemmer_destroy(step->u.stemmer); + break; default: break; } @@ -162,6 +175,9 @@ struct icu_chain_step *icu_chain_step_clone(struct icu_chain_step *old) case ICU_chain_step_type_tokenize: (*sp)->u.tokenizer = icu_tokenizer_clone(old->u.tokenizer); break; + case YAZ_chain_step_type_stemming: + yaz_stemmer_clone(step->u.stemmer); + break; case ICU_chain_step_type_none: break; } @@ -173,9 +189,9 @@ struct icu_chain_step *icu_chain_step_clone(struct icu_chain_step *old) } struct icu_chain *icu_chain_create(const char *locale, int sort, - UErrorCode * status) + UErrorCode *status) { - struct icu_chain * chain + struct icu_chain *chain = (struct icu_chain *) xmalloc(sizeof(*chain)); *status = U_ZERO_ERROR; @@ -195,7 +211,7 @@ struct icu_chain *icu_chain_create(const char *locale, int sort, return chain; } -void icu_chain_destroy(struct icu_chain * chain) +void icu_chain_destroy(struct icu_chain *chain) { if (chain) { @@ -211,15 +227,17 @@ void icu_chain_destroy(struct icu_chain * chain) } static struct icu_chain_step *icu_chain_insert_step( - struct icu_chain * chain, enum icu_chain_step_type type, - const uint8_t * rule, UErrorCode *status); + struct icu_chain *chain, enum icu_chain_step_type type, + const uint8_t *rule, UErrorCode *status); -struct icu_chain * icu_chain_xml_config(const xmlNode *xml_node, - int sort, - UErrorCode * status) +struct icu_chain *icu_chain_xml_config(const xmlNode *xml_node, + int sort, + UErrorCode *status) { xmlNode *node = 0; - struct icu_chain * chain = 0; + int no_errors = 0; + struct icu_chain *chain = 0; + NMEM nmem = 0; *status = U_ZERO_ERROR; @@ -227,8 +245,8 @@ struct icu_chain * icu_chain_xml_config(const xmlNode *xml_node, return 0; { - xmlChar * xml_locale = xmlGetProp((xmlNode *) xml_node, - (xmlChar *) "locale"); + xmlChar *xml_locale = xmlGetProp((xmlNode *) xml_node, + (xmlChar *) "locale"); if (xml_locale) { @@ -240,37 +258,58 @@ struct icu_chain * icu_chain_xml_config(const xmlNode *xml_node, if (!chain) return 0; + nmem = nmem_create(); for (node = xml_node->children; node; node = node->next) { - xmlChar *xml_rule; - struct icu_chain_step * step = 0; + char *rule = 0; + struct icu_chain_step *step = 0; + struct _xmlAttr *attr; + nmem_reset(nmem); if (node->type != XML_ELEMENT_NODE) continue; - xml_rule = xmlGetProp(node, (xmlChar *) "rule"); - + for (attr = node->properties; attr; attr = attr->next) + { + if (!strcmp((const char *) attr->name, "rule")) + { + rule = nmem_text_node_cdata(attr->children, nmem); + } + else + { + yaz_log(YLOG_WARN, "Unsupported attribute '%s' for " + "element '%s'", attr->name, node->name); + no_errors++; + continue; + } + } + if (!rule && node->children) + rule = nmem_text_node_cdata(node->children, nmem); + if (!strcmp((const char *) node->name, "casemap")) step = icu_chain_insert_step(chain, ICU_chain_step_type_casemap, - (const uint8_t *) xml_rule, status); + (const uint8_t *) rule, status); else if (!strcmp((const char *) node->name, "transform")) step = icu_chain_insert_step(chain, ICU_chain_step_type_transform, - (const uint8_t *) xml_rule, status); + (const uint8_t *) rule, status); else if (!strcmp((const char *) node->name, "transliterate")) step = icu_chain_insert_step(chain, ICU_chain_step_type_transliterate, - (const uint8_t *) xml_rule, status); + (const uint8_t *) rule, status); else if (!strcmp((const char *) node->name, "tokenize")) step = icu_chain_insert_step(chain, ICU_chain_step_type_tokenize, - (const uint8_t *) xml_rule, status); + (const uint8_t *) rule, status); else if (!strcmp((const char *) node->name, "display")) step = icu_chain_insert_step(chain, ICU_chain_step_type_display, (const uint8_t *) "", status); + else if (!strcmp((const char *) node->name, "stemming")) + step = icu_chain_insert_step(chain, YAZ_chain_step_type_stemming, + (const uint8_t *) rule, status); else if (!strcmp((const char *) node->name, "normalize")) { yaz_log(YLOG_WARN, "Element %s is deprecated. " "Use transform instead", node->name); step = icu_chain_insert_step(chain, ICU_chain_step_type_transform, - (const uint8_t *) xml_rule, status); + (const uint8_t *) rule, status); } else if (!strcmp((const char *) node->name, "index") || !strcmp((const char *) node->name, "sortkey")) @@ -281,36 +320,22 @@ struct icu_chain * icu_chain_xml_config(const xmlNode *xml_node, else { yaz_log(YLOG_WARN, "Unknown element %s", node->name); - icu_chain_destroy(chain); - return 0; + no_errors++; + continue; } - xmlFree(xml_rule); if (step && U_FAILURE(*status)) { - icu_chain_destroy(chain); - return 0; + no_errors++; + break; } } - return chain; -} - - -static struct icu_chain_step *icu_chain_insert_step( - struct icu_chain * chain, enum icu_chain_step_type type, - const uint8_t * rule, UErrorCode *status) -{ - struct icu_chain_step * step = 0; - if (!chain || !type || !rule) + nmem_destroy(nmem); + if (no_errors) + { + icu_chain_destroy(chain); return 0; - - /* create actual chain step with this buffer */ - step = icu_chain_step_create(chain, type, rule, - status); - - step->previous = chain->csteps; - chain->csteps = step; - - return step; + } + return chain; } struct icu_iter { @@ -398,6 +423,15 @@ struct icu_buf_utf16 *icu_iter_invoke(yaz_icu_iter_t iter, if (dst) icu_utf16_to_utf8(iter->display, dst, &iter->status); break; + case YAZ_chain_step_type_stemming: + if (dst) + { + struct icu_buf_utf16 *src = dst; + dst = icu_buf_utf16_create(0); + yaz_stemmer_stem(step->u.stemmer, dst, src, &iter->status); + icu_buf_utf16_destroy(src); + } + break; default: assert(0); } @@ -490,12 +524,12 @@ const char *icu_iter_get_display(yaz_icu_iter_t iter) return icu_buf_utf8_to_cstr(iter->display); } -const char *icu_iter_get_token_number(yaz_icu_iter_t iter) +int icu_iter_get_token_number(yaz_icu_iter_t iter) { return iter->token_count; } -int icu_chain_assign_cstr(struct icu_chain * chain, const char * src8cstr, +int icu_chain_assign_cstr(struct icu_chain *chain, const char *src8cstr, UErrorCode *status) { if (chain->iter) @@ -505,34 +539,34 @@ int icu_chain_assign_cstr(struct icu_chain * chain, const char * src8cstr, return 1; } -int icu_chain_next_token(struct icu_chain * chain, UErrorCode *status) +int icu_chain_next_token(struct icu_chain *chain, UErrorCode *status) { *status = U_ZERO_ERROR; return icu_iter_next(chain->iter); } -int icu_chain_token_number(struct icu_chain * chain) +int icu_chain_token_number(struct icu_chain *chain) { if (chain && chain->iter) return chain->iter->token_count; return 0; } -const char * icu_chain_token_display(struct icu_chain * chain) +const char *icu_chain_token_display(struct icu_chain *chain) { if (chain->iter) return icu_iter_get_display(chain->iter); return 0; } -const char * icu_chain_token_norm(struct icu_chain * chain) +const char *icu_chain_token_norm(struct icu_chain *chain) { if (chain->iter) return icu_iter_get_norm(chain->iter); return 0; } -const char * icu_chain_token_sortkey(struct icu_chain * chain) +const char *icu_chain_token_sortkey(struct icu_chain *chain) { if (chain->iter) return icu_iter_get_sortkey(chain->iter);