X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Ficu_I18N.c;h=9f1d13c3de1a4f492278b8dd022f56a9f9eac3b9;hb=273716ada4a96213fb99182df2a3ee22509437b0;hp=a082b1f5903e0a39183a462e01ea43e52df63031;hpb=1d6cd0231d7d52bd618ea33db95d3f83ba9915a5;p=yaz-moved-to-github.git

diff --git a/src/icu_I18N.c b/src/icu_I18N.c
index a082b1f..9f1d13c 100644
--- a/src/icu_I18N.c
+++ b/src/icu_I18N.c
@@ -1,8 +1,11 @@
-/*
- * Copyright (C) 1995-2007, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2009 Index Data
  * See the file LICENSE for details.
- *
- * $Id: icu_I18N.c,v 1.18 2007-11-08 17:22:49 adam Exp $
+ */
+
+/**
+ * \file icu_I18N.c
+ * \brief ICU utilities
  */
 
 #if HAVE_CONFIG_H
@@ -14,9 +17,9 @@
 #include <yaz/timing.h>
 #endif
 
+#if YAZ_HAVE_ICU
 #include <yaz/xmalloc.h>
 
-#if YAZ_HAVE_ICU
 #include <yaz/icu_I18N.h>
 
 #include <yaz/log.h>
@@ -34,9 +37,9 @@
 
 int icu_check_status (UErrorCode status)
 {
-    if(U_FAILURE(status)){
-        yaz_log(YLOG_WARN, 
-                "ICU: %d %s\n", status, u_errorName(status));
+    if (U_FAILURE(status))
+    {
+        yaz_log(YLOG_WARN, "ICU: %d %s\n", status, u_errorName(status));
         return 0;   
     }
     return 1;
@@ -166,8 +169,7 @@ struct icu_buf_utf8 * icu_buf_utf8_resize(struct icu_buf_utf8 * buf8,
         else
             buf8->utf8 
                 = (uint8_t *) xrealloc(buf8->utf8, sizeof(uint8_t) * capacity);
-
-        icu_buf_utf8_clear(buf8);
+        
         buf8->utf8_cap = capacity;
     } 
     else { 
@@ -181,23 +183,6 @@ struct icu_buf_utf8 * icu_buf_utf8_resize(struct icu_buf_utf8 * buf8,
 }
 
 
-struct icu_buf_utf8 * icu_buf_utf8_copy(struct icu_buf_utf8 * dest8,
-                                          struct icu_buf_utf8 * src8)
-{
-    if(!dest8 || !src8
-       || dest8 == src8)
-        return 0;
-    
-
-    if (dest8->utf8_cap < src8->utf8_len)
-        icu_buf_utf8_resize(dest8, src8->utf8_len * 2);
-
-    strncpy((char*) dest8->utf8, (char*) src8->utf8, src8->utf8_len);
-
-    return dest8;
-}
-
-
 const char *icu_buf_utf8_to_cstr(struct icu_buf_utf8 *src8)
 {
     if (!src8 || src8->utf8_len == 0)
@@ -372,7 +357,7 @@ int icu_utf16_casemap(struct icu_buf_utf16 * dest16,
     int32_t dest16_len = 0;
 
 
-    if (!src16->utf16_len){           //guarding for empty source string
+    if (!src16->utf16_len){           /* guarding for empty source string */
         if (dest16->utf16)
             dest16->utf16[0] = (UChar) 0;
         dest16->utf16_len = 0;
@@ -465,10 +450,10 @@ int icu_utf16_casemap(struct icu_buf_utf16 * dest16,
 
 
 
-UErrorCode icu_sortkey8_from_utf16(UCollator *coll,
-                                   struct icu_buf_utf8 * dest8, 
-                                   struct icu_buf_utf16 * src16,
-                                   UErrorCode * status)
+void icu_sortkey8_from_utf16(UCollator *coll,
+                             struct icu_buf_utf8 * dest8, 
+                             struct icu_buf_utf16 * src16,
+                             UErrorCode * status)
 { 
   
     int32_t sortkey_len = 0;
@@ -488,8 +473,6 @@ UErrorCode icu_sortkey8_from_utf16(UCollator *coll,
         dest8->utf8_len = sortkey_len;
     else 
         icu_buf_utf8_clear(dest8);
-    
-    return sortkey_len;
 }
 
 
@@ -669,75 +652,83 @@ int32_t icu_tokenizer_token_count(struct icu_tokenizer * tokenizer)
 
 
 
-struct icu_normalizer * icu_normalizer_create(const char *rules, char action,
-                                              UErrorCode *status)
+struct icu_transform * icu_transform_create(const char *id, char action,
+                                            const char *rules, 
+                                            UErrorCode *status)
 {
+    struct icu_buf_utf16 *id16 = icu_buf_utf16_create(0);
+    struct icu_buf_utf16 *rules16 = icu_buf_utf16_create(0);
+
+    struct icu_transform * transform
+        = (struct icu_transform *) xmalloc(sizeof(struct icu_transform));
 
-    struct icu_normalizer * normalizer
-        = (struct icu_normalizer *) xmalloc(sizeof(struct icu_normalizer));
+    transform->action = action;
+    transform->trans = 0;
 
-    normalizer->action = action;
-    normalizer->trans = 0;
-    normalizer->rules16 =  icu_buf_utf16_create(0);
-    icu_utf16_from_utf8_cstr(normalizer->rules16, rules, status);
-     
-    switch(normalizer->action) {    
+    if (id)
+        icu_utf16_from_utf8_cstr(id16, id, status);
+    if (rules)
+        icu_utf16_from_utf8_cstr(rules16, rules, status);
+
+    switch(transform->action)
+    {
     case 'f':
     case 'F':
-        normalizer->trans
-            = utrans_openU(normalizer->rules16->utf16, 
-                           normalizer->rules16->utf16_len,
+        transform->trans
+            = utrans_openU(id16->utf16, 
+                           id16->utf16_len,
                            UTRANS_FORWARD,
-                           0, 0, 
-                           normalizer->parse_error, status);
+                           rules16->utf16, 
+                           rules16->utf16_len,
+                           &transform->parse_error, status);
         break;
     case 'r':
     case 'R':
-        normalizer->trans
-            = utrans_openU(normalizer->rules16->utf16,
-                           normalizer->rules16->utf16_len,
+        transform->trans
+            = utrans_openU(id16->utf16,
+                           id16->utf16_len,
                            UTRANS_REVERSE ,
-                           0, 0,
-                           normalizer->parse_error, status);
+                           rules16->utf16, 
+                           rules16->utf16_len,
+                           &transform->parse_error, status);
         break;
     default:
         *status = U_UNSUPPORTED_ERROR;
-        return 0;
         break;
     }
+    icu_buf_utf16_destroy(rules16);
+    icu_buf_utf16_destroy(id16);
     
     if (U_SUCCESS(*status))
-        return normalizer;
+        return transform;
 
     /* freeing if failed */
-    icu_normalizer_destroy(normalizer);
+    icu_transform_destroy(transform);
     return 0;
 }
 
 
-void icu_normalizer_destroy(struct icu_normalizer * normalizer){
-    if (normalizer) {
-        if (normalizer->rules16) 
-            icu_buf_utf16_destroy(normalizer->rules16);
-        if (normalizer->trans)
-            utrans_close(normalizer->trans);
-        xfree(normalizer);
+void icu_transform_destroy(struct icu_transform * transform){
+    if (transform) {
+        if (transform->trans)
+            utrans_close(transform->trans);
+        xfree(transform);
     }
 }
 
 
 
-int icu_normalizer_normalize(struct icu_normalizer * normalizer,
-                             struct icu_buf_utf16 * dest16,
-                             struct icu_buf_utf16 * src16,
-                             UErrorCode *status)
+int icu_transform_trans(struct icu_transform * transform,
+                        struct icu_buf_utf16 * dest16,
+                        struct icu_buf_utf16 * src16,
+                        UErrorCode *status)
 {
-    if (!normalizer || !normalizer->trans 
+    if (!transform || !transform->trans 
         || !src16
         || !dest16)
         return 0;
 
-    if (!src16->utf16_len){           //guarding for empty source string
+    if (!src16->utf16_len){           /* guarding for empty source string */
         icu_buf_utf16_clear(dest16);
         return 0;
     }
@@ -746,7 +737,7 @@ int icu_normalizer_normalize(struct icu_normalizer * normalizer,
         return 0;
 
    
-    utrans_transUChars (normalizer->trans, 
+    utrans_transUChars (transform->trans, 
                         dest16->utf16, &(dest16->utf16_len),
                         dest16->utf16_cap,
                         0, &(src16->utf16_len), status);
@@ -784,13 +775,20 @@ struct icu_chain_step * icu_chain_step_create(struct icu_chain * chain,
     case ICU_chain_step_type_casemap:
         step->u.casemap = icu_casemap_create(rule[0], status);
         break;
-    case ICU_chain_step_type_normalize:
-        step->u.normalizer = icu_normalizer_create((char *) rule, 'f', status);
+    case ICU_chain_step_type_transform:
+        /* rule omitted. Only ID used */
+        step->u.transform = icu_transform_create((const char *) rule, 'f',
+                                                 0, status);
         break;
     case ICU_chain_step_type_tokenize:
         step->u.tokenizer = icu_tokenizer_create((char *) chain->locale, 
                                                  (char) rule[0], status);
         break;
+    case ICU_chain_step_type_transliterate:
+        /* we pass a dummy ID to utrans_openU.. */
+        step->u.transform = icu_transform_create("custom", 'f',
+                                                 (const char *) rule, status);
+        break;
     default:
         break;
     }
@@ -813,8 +811,9 @@ void icu_chain_step_destroy(struct icu_chain_step * step){
         icu_casemap_destroy(step->u.casemap);
         icu_buf_utf16_destroy(step->buf16);
         break;
-    case ICU_chain_step_type_normalize:
-        icu_normalizer_destroy(step->u.normalizer);
+    case ICU_chain_step_type_transform:
+    case ICU_chain_step_type_transliterate:
+        icu_transform_destroy(step->u.transform);
         icu_buf_utf16_destroy(step->buf16);
         break;
     case ICU_chain_step_type_tokenize:
@@ -829,11 +828,9 @@ void icu_chain_step_destroy(struct icu_chain_step * step){
 
 
 
-struct icu_chain * icu_chain_create(const char *locale, 
-                                    int sort,
+struct icu_chain * icu_chain_create(const char *locale,  int sort,
                                     UErrorCode * status)
 {
-
     struct icu_chain * chain 
         = (struct icu_chain *) xmalloc(sizeof(struct icu_chain));
 
@@ -848,7 +845,6 @@ struct icu_chain * icu_chain_create(const char *locale,
     if (U_FAILURE(*status))
         return 0;
 
-
     chain->token_count = 0;
 
     chain->src8cstr = 0;
@@ -867,8 +863,8 @@ struct icu_chain * icu_chain_create(const char *locale,
 
 void icu_chain_destroy(struct icu_chain * chain)
 {
-    if (chain){
-
+    if (chain)
+    {
         if (chain->coll)
             ucol_close(chain->coll);
 
@@ -922,35 +918,47 @@ struct icu_chain * icu_chain_xml_config(const xmlNode *xml_node,
 
         xml_rule = xmlGetProp(node, (xmlChar *) "rule");
 
-        if (!strcmp((const char *) node->name, 
-                    (const char *) "casemap")){
+        if (!strcmp((const char *) node->name, "casemap"))
             step = icu_chain_insert_step(chain, ICU_chain_step_type_casemap, 
                                          (const uint8_t *) xml_rule, status);
-        }
-        else if (!strcmp((const char *) node->name,
-                         (const char *) "normalize")){
-            step = icu_chain_insert_step(chain, ICU_chain_step_type_normalize, 
+        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);
-        }
-        else if (!strcmp((const char *) node->name,
-                         (const char *) "tokenize")){
+        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);
+        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);
-        }
-        else if (!strcmp((const char *) node->name,
-                         (const char *) "display")){
+        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, "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);
+        }
+        else if (!strcmp((const char *) node->name, "index")
+                 || !strcmp((const char *) node->name, "sortkey"))
+        {
+            yaz_log(YLOG_WARN, "Element %s is no longer needed. "
+                    "Remove it from the configuration", node->name);
+        }
+        else
+        {
+            yaz_log(YLOG_WARN, "Unknown element %s", node->name);
+            icu_chain_destroy(chain);
+            return 0;
         }
         xmlFree(xml_rule);
-        if (!step || U_FAILURE(*status)){
+        if (step && U_FAILURE(*status))
+        {
             icu_chain_destroy(chain);
             return 0;
         }
-        
-
     }
-
     return chain;
 }
 
@@ -978,19 +986,22 @@ struct icu_chain_step * icu_chain_insert_step(struct icu_chain * chain,
 
     
     /* create utf16 destination buffers as needed, or */
-    switch(type) {
+    switch(type)
+    {
     case ICU_chain_step_type_display:
         buf16 = src16;
         break;
     case ICU_chain_step_type_casemap:
         buf16 = icu_buf_utf16_create(0);
         break;
-    case ICU_chain_step_type_normalize:
+    case ICU_chain_step_type_transform:
+    case ICU_chain_step_type_transliterate:
         buf16 = icu_buf_utf16_create(0);
         break;
     case ICU_chain_step_type_tokenize:
         buf16 = icu_buf_utf16_create(0);
         break;
+        break;
     default:
         break;
     }
@@ -1018,7 +1029,8 @@ int icu_chain_step_next_token(struct icu_chain * chain,
     /* assign utf16 src buffers as neeed, advance in previous steps
        tokens until non-zero token met, and setting stop condition */
 
-    if (step->previous){
+    if (step->previous)
+    {
         src16 = step->previous->buf16;
         /* tokens might be killed in previous steps, therefore looping */
 
@@ -1028,7 +1040,8 @@ int icu_chain_step_next_token(struct icu_chain * chain,
             got_new_token
                 = icu_chain_step_next_token(chain, step->previous, status);
     }
-    else { /* first step can only work once on chain->src16 input buffer */
+    else 
+    { /* first step can only work once on chain->src16 input buffer */
         src16 = chain->src16;
         step->more_tokens = 0;
         got_new_token = 1;
@@ -1038,7 +1051,8 @@ int icu_chain_step_next_token(struct icu_chain * chain,
         return 0;
 
     /* stop if nothing to process */
-    if (step->need_new_token && !got_new_token){
+    if (step->need_new_token && !got_new_token)
+    {
         step->more_tokens = 0;
         return 0;
     }
@@ -1047,7 +1061,8 @@ int icu_chain_step_next_token(struct icu_chain * chain,
        perform the work, eventually put this steps output in 
        step->buf16 or the chains UTF8 output buffers  */
 
-    switch(step->type) {
+    switch(step->type)
+    {
     case ICU_chain_step_type_display:
         icu_utf16_to_utf8(chain->display8, src16, status);
         break;
@@ -1056,18 +1071,19 @@ int icu_chain_step_next_token(struct icu_chain * chain,
                             step->buf16, src16, status,
                             chain->locale);
         break;
-    case ICU_chain_step_type_normalize:
-        icu_normalizer_normalize(step->u.normalizer,
-                                 step->buf16, src16, status);
+    case ICU_chain_step_type_transform:
+    case ICU_chain_step_type_transliterate:
+        icu_transform_trans(step->u.transform,
+                            step->buf16, src16, status);
         break;
     case ICU_chain_step_type_tokenize:
         /* attach to new src16 token only first time during splitting */
-        if (step->need_new_token){
+        if (step->need_new_token)
+        {
             icu_tokenizer_attach(step->u.tokenizer, src16, status);
             step->need_new_token = 0;
         }
 
-
         /* splitting one src16 token into multiple buf16 tokens */
         step->more_tokens
             = icu_tokenizer_next_token(step->u.tokenizer,
@@ -1076,11 +1092,11 @@ int icu_chain_step_next_token(struct icu_chain * chain,
         /* make sure to get new previous token if this one had been used up
            by recursive call to _same_ step */
 
-        if (!step->more_tokens){
+        if (!step->more_tokens)
+        {
             step->more_tokens = icu_chain_step_next_token(chain, step, status);
-            return step->more_tokens;  // avoid one token count too much!
+            return step->more_tokens;  /* avoid one token count too much! */
         }
-
         break;
     default:
         return 0;
@@ -1115,7 +1131,8 @@ int icu_chain_assign_cstr(struct icu_chain * chain,
     chain->token_count = 0;
 
     /* clear all steps stop states */
-    while (stp){
+    while (stp)
+    {
         stp->more_tokens = 1;
         stp->need_new_token = 1;
         stp = stp->previous;
@@ -1144,10 +1161,12 @@ int icu_chain_next_token(struct icu_chain * chain,
         return 0;
 
     /* special case with no steps - same as index type binary */
-    if (!chain->steps){
+    if (!chain->steps)
+    {
         if (chain->token_count)
             return 0;
-        else {
+        else
+        {
             chain->token_count++;
             
             if (chain->sort)
@@ -1158,12 +1177,13 @@ int icu_chain_next_token(struct icu_chain * chain,
         }
     }
     /* usual case, one or more icu chain steps existing */
-    else {
-
+    else 
+    {
         while(!got_token && chain->steps && chain->steps->more_tokens)
             got_token = icu_chain_step_next_token(chain, chain->steps, status);
 
-        if (got_token){
+        if (got_token)
+        {
             chain->token_count++;
 
             icu_utf16_to_utf8(chain->norm8, chain->steps->buf16, status);
@@ -1172,7 +1192,7 @@ int icu_chain_next_token(struct icu_chain * chain,
                 icu_sortkey8_from_utf16(chain->coll,
                                         chain->sort8, chain->steps->buf16,
                                         status);
-            
+
             return chain->token_count;
         }
     }
@@ -1221,16 +1241,14 @@ const UCollator * icu_chain_get_coll(struct icu_chain * chain)
     return chain->coll;
 }
 
-
 #endif /* YAZ_HAVE_ICU */
 
-
-
-
 /*
  * Local variables:
  * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
  * indent-tabs-mode: nil
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab
  */
+