Update doc/common

[yaz-moved-to-github.git] / src / icu_chain.c

diff --git a/src/icu_chain.c b/src/icu_chain.c
index 2ac1960..6aac1c0 100644 (file)
--- a/src/icu_chain.c
+++ b/src/icu_chain.c
@@ -1,5 +1,5 @@
 /* This file is part of the YAZ toolkit.
- * Copyright (C) 1995-2013 Index Data
+ * Copyright (C) Index Data
  * See the file LICENSE for details.
  */
 
@@ -291,7 +291,7 @@ struct icu_chain *icu_chain_xml_config(const xmlNode *xml_node,
 
         if (!rule && strcmp((const char *) node->name, "display"))
         {
-            yaz_log(YLOG_WARN, "Missing attribute rule for element %s",
+            yaz_log(YLOG_WARN, "Missing attribute 'rule' for element %s",
                     (const char *) node->name);
             no_errors++;
             continue;
@@ -346,6 +346,9 @@ struct icu_chain *icu_chain_xml_config(const xmlNode *xml_node,
         }
         if (step && U_FAILURE(*status))
         {
+            yaz_log(YLOG_WARN, "ICU Error %d %s for element %s, rule %s",
+                    *status, u_errorName(*status), node->name, rule ?
+                    rule : "");
             no_errors++;
             break;
         }
@@ -362,12 +365,14 @@ struct icu_chain *icu_chain_xml_config(const xmlNode *xml_node,
 struct icu_iter {
     struct icu_chain *chain;
     struct icu_buf_utf16 *last;
+    struct icu_buf_utf16 *org;
     UErrorCode status;
     struct icu_buf_utf8 *display;
     struct icu_buf_utf8 *sort8;
     struct icu_buf_utf8 *result;
-    struct icu_buf_utf16 *input;
     int token_count;
+    size_t org_start;
+    size_t org_len;
     struct icu_chain_step *steps;
 };
 
@@ -423,7 +428,8 @@ struct icu_buf_utf16 *icu_iter_invoke(yaz_icu_iter_t iter,
             }
             dst = icu_buf_utf16_create(0);
             iter->status = U_ZERO_ERROR;
-            if (!icu_tokenizer_next_token(step->u.tokenizer, dst, &iter->status))
+            if (!icu_tokenizer_next_token(step->u.tokenizer, dst, &iter->status,
+                                          &iter->org_start, &iter->org_len))
             {
                 icu_buf_utf16_destroy(dst);
                 dst = 0;
@@ -483,22 +489,23 @@ yaz_icu_iter_t icu_iter_create(struct icu_chain *chain)
     iter->display = icu_buf_utf8_create(0);
     iter->sort8 = icu_buf_utf8_create(0);
     iter->result = icu_buf_utf8_create(0);
+    iter->org = icu_buf_utf16_create(0);
     iter->last = 0; /* no last returned string (yet) */
     iter->steps = icu_chain_step_clone(chain->csteps);
-    iter->input = 0;
+    iter->token_count = 0;
 
     return iter;
 }
 
 void icu_iter_first(yaz_icu_iter_t iter, const char *src8cstr)
 {
-    if (iter->input)
-        icu_buf_utf16_destroy(iter->input);
-    iter->input = icu_buf_utf16_create(0);
+    struct icu_buf_utf16 *src = icu_buf_utf16_create(0);
+    icu_utf16_from_utf8_cstr(src, src8cstr, &iter->status);
+    icu_buf_utf16_copy(iter->org, src);
     iter->token_count = 0;
-    /* fill and assign input string.. It will be 0 after
-       first iteration */
-    icu_utf16_from_utf8_cstr(iter->input, src8cstr, &iter->status);
+    iter->org_start = 0;
+    iter->org_len = src->utf16_len;
+    iter->last = icu_iter_invoke(iter, iter->steps, src);
 }
 
 void icu_iter_destroy(yaz_icu_iter_t iter)
@@ -508,8 +515,7 @@ void icu_iter_destroy(yaz_icu_iter_t iter)
         icu_buf_utf8_destroy(iter->display);
         icu_buf_utf8_destroy(iter->sort8);
         icu_buf_utf8_destroy(iter->result);
-        if (iter->input)
-            icu_buf_utf16_destroy(iter->input);
+        icu_buf_utf16_destroy(iter->org);
         icu_chain_step_destroy(iter->steps);
         xfree(iter);
     }
@@ -517,20 +523,13 @@ void icu_iter_destroy(yaz_icu_iter_t iter)
 
 int icu_iter_next(yaz_icu_iter_t iter)
 {
-    if (!iter->input && iter->last == 0)
+    if (iter->token_count && iter->last)
+        iter->last = icu_iter_invoke(iter, iter->steps, 0);
+    if (!iter->last)
         return 0;
     else
     {
-        /* on first call, iter->input is the input string. Thereafter: 0. */
-        assert(iter->steps || !iter->chain->csteps);
-        iter->last = icu_iter_invoke(iter, iter->steps, iter->input);
-        iter->input = 0;
-
-        if (!iter->last)
-            return 0;
-
         iter->token_count++;
-
         if (iter->chain->sort)
         {
             icu_sortkey8_from_utf16(iter->chain->coll,
@@ -564,6 +563,31 @@ int icu_iter_get_token_number(yaz_icu_iter_t iter)
     return iter->token_count;
 }
 
+
+void icu_iter_get_org_info(yaz_icu_iter_t iter, size_t *start, size_t *len)
+{
+    /* save full length of org since we're gonna cut it */
+    int32_t save_len = iter->org->utf16_len;
+
+    struct icu_buf_utf8 *tmp = icu_buf_utf8_create(0);
+    UErrorCode status = U_ZERO_ERROR;
+
+    iter->org->utf16_len = iter->org_start;
+    icu_utf16_to_utf8(tmp, iter->org, &status);
+    if (U_SUCCESS(status))
+        *start = tmp->utf8_len;
+    else
+        *start = 0;
+    iter->org->utf16_len = iter->org_start + iter->org_len;
+    icu_utf16_to_utf8(tmp, iter->org, &status);
+    if (U_SUCCESS(status))
+        *len = tmp->utf8_len - *start;
+    else
+        *len = 0;
+    icu_buf_utf8_destroy(tmp);
+    iter->org->utf16_len = save_len;
+}
+
 int icu_chain_assign_cstr(struct icu_chain *chain, const char *src8cstr,
                           UErrorCode *status)
 {
@@ -608,6 +632,13 @@ const char *icu_chain_token_sortkey(struct icu_chain *chain)
     return 0;
 }
 
+void icu_chain_get_org_info(struct icu_chain *chain, size_t *start, size_t *len)
+{
+    if (chain->iter)
+        icu_iter_get_org_info(chain->iter, start, len);
+}
+
+
 #endif /* YAZ_HAVE_ICU */
 
 /*