First go at returning start+offset
[yaz-moved-to-github.git] / include / yaz / icu_I18N.h
index 7436b2e..d61c007 100644 (file)
@@ -1,5 +1,5 @@
-/*
- * Copyright (c) 1995-2007, Index Data
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2013 Index Data.
  * All rights reserved.
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+/** \file
+    \brief Internal header for ICU utilities
+
+    These functions, while non-static, are considered unstable and internal
+    and may be renamed for each YAZ release.
+*/
+
 #ifndef ICU_I18NL_H
 #define ICU_I18NL_H
 
-#include <yaz/nmem.h>
-
-#include <libxml/parser.h>
-#include <libxml/tree.h>
+#include <yaz/yconfig.h>
 
 #include <unicode/utypes.h>   /* Basic ICU data types */
 #include <unicode/uchar.h>    /* char names           */
 
-#include <unicode/ucol.h> 
+#include <unicode/ucol.h>
 #include <unicode/ubrk.h>
-#include <unicode/utrans.h>
-
 
+#include <yaz/icu.h>
 
 /* declared structs and functions */
 
@@ -48,9 +51,9 @@ int icu_check_status (UErrorCode status);
 
 struct icu_buf_utf16
 {
-  UChar * utf16;
-  int32_t utf16_len;
-  int32_t utf16_cap;
+    UChar * utf16;
+    int32_t utf16_len;
+    int32_t utf16_cap;
 };
 
 struct icu_buf_utf16 * icu_buf_utf16_create(size_t capacity);
@@ -60,12 +63,17 @@ struct icu_buf_utf16 * icu_buf_utf16_clear(struct icu_buf_utf16 * buf16);
 struct icu_buf_utf16 * icu_buf_utf16_resize(struct icu_buf_utf16 * buf16,
                                             size_t capacity);
 
-struct icu_buf_utf16 * icu_buf_utf16_copy(struct icu_buf_utf16 * dest16,
-                                          struct icu_buf_utf16 * src16);
+struct icu_buf_utf16 *icu_buf_utf16_copy(struct icu_buf_utf16 * dest16,
+                                         const struct icu_buf_utf16 * src16);
 
-void icu_buf_utf16_destroy(struct icu_buf_utf16 * buf16);
+struct icu_buf_utf16 *icu_buf_utf16_append(struct icu_buf_utf16 *dest16,
+                                           const struct icu_buf_utf16 * src16);
 
+void icu_buf_utf16_log(const char *lead, struct icu_buf_utf16 *src16);
 
+void icu_buf_utf16_destroy(struct icu_buf_utf16 * buf16);
+
+struct icu_buf_utf8;
 
 struct icu_buf_utf8
 {
@@ -84,205 +92,87 @@ struct icu_buf_utf8 * icu_buf_utf8_resize(struct icu_buf_utf8 * buf8,
 void icu_buf_utf8_destroy(struct icu_buf_utf8 * buf8);
 
 
-UErrorCode icu_utf16_from_utf8(struct icu_buf_utf16 * dest16,
-                               struct icu_buf_utf8 * src8,
-                               UErrorCode * status);
-
 UErrorCode icu_utf16_from_utf8_cstr(struct icu_buf_utf16 * dest16,
                                     const char * src8cstr,
                                     UErrorCode * status);
 
+const char *icu_buf_utf8_to_cstr(struct icu_buf_utf8 *src8);
 
-UErrorCode icu_utf16_to_utf8(struct icu_buf_utf8 * dest8,
-                             struct icu_buf_utf16 * src16,
+
+UErrorCode icu_utf16_to_utf8(struct icu_buf_utf8 *dest8,
+                             const struct icu_buf_utf16 *src16,
                              UErrorCode * status);
 
-struct icu_casemap
-{
-    char locale[16];
-    char action;
-};
+struct icu_casemap;
 
-struct icu_casemap * icu_casemap_create(const char *locale, char action,
-                                            UErrorCode *status);
+struct icu_casemap * icu_casemap_create(char action, UErrorCode *status);
+
+struct icu_casemap *icu_casemap_clone(struct icu_casemap *old);
 
 void icu_casemap_destroy(struct icu_casemap * casemap);
 
 int icu_casemap_casemap(struct icu_casemap * casemap,
                         struct icu_buf_utf16 * dest16,
                         struct icu_buf_utf16 * src16,
-                        UErrorCode *status);
+                        UErrorCode *status,
+                        const char *locale);
 
 int icu_utf16_casemap(struct icu_buf_utf16 * dest16,
                       struct icu_buf_utf16 * src16,
                       const char *locale, char action,
                       UErrorCode *status);
 
-UErrorCode icu_sortkey8_from_utf16(UCollator *coll,
-                                   struct icu_buf_utf8 * dest8, 
-                                   struct icu_buf_utf16 * src16,
-                                   UErrorCode * status);
-
-struct icu_tokenizer
-{
-    char locale[16];
-    char action;
-    UBreakIterator* bi;
-    struct icu_buf_utf16 * buf16;
-    int32_t token_count;
-    int32_t token_id;
-    int32_t token_start;
-    int32_t token_end;
-/*
-  keep always invariant
-  0 <= token_start 
-  <= token_end 
-  <= buf16->utf16_len
-  and invariant
-  0 <= token_id <= token_count
-*/
-};
+void icu_sortkey8_from_utf16(UCollator *coll,
+                             struct icu_buf_utf8 * dest8,
+                             struct icu_buf_utf16 * src16,
+                             UErrorCode * status);
 
+struct icu_tokenizer;
 struct icu_tokenizer * icu_tokenizer_create(const char *locale, char action,
                                             UErrorCode *status);
 
+struct icu_tokenizer *icu_tokenizer_clone(struct icu_tokenizer *old);
 void icu_tokenizer_destroy(struct icu_tokenizer * tokenizer);
 
-int icu_tokenizer_attach(struct icu_tokenizer * tokenizer, 
+int icu_tokenizer_attach(struct icu_tokenizer * tokenizer,
                          struct icu_buf_utf16 * src16, UErrorCode *status);
 
-int32_t icu_tokenizer_next_token(struct icu_tokenizer * tokenizer, 
-                                 struct icu_buf_utf16 * tkn16, 
-                                 UErrorCode *status);
+int32_t icu_tokenizer_next_token(struct icu_tokenizer * tokenizer,
+                                 struct icu_buf_utf16 * tkn16,
+                                 UErrorCode *status,
+                                 size_t *start, size_t *len);
 
-int32_t icu_tokenizer_token_id(struct icu_tokenizer * tokenizer);
-int32_t icu_tokenizer_token_start(struct icu_tokenizer * tokenizer);
-int32_t icu_tokenizer_token_end(struct icu_tokenizer * tokenizer);
-int32_t icu_tokenizer_token_length(struct icu_tokenizer * tokenizer);
 int32_t icu_tokenizer_token_count(struct icu_tokenizer * tokenizer);
 
+struct icu_transform;
 
+struct icu_transform * icu_transform_create(const char *id, char action,
+                                            const char *rules,
+                                            UErrorCode *status);
+struct icu_transform *icu_transform_clone(struct icu_transform *old);
+void icu_transform_destroy(struct icu_transform * transform);
 
-struct icu_normalizer
-{
-    char action;
-    struct icu_buf_utf16 * rules16;
-    UParseError parse_error[256];
-    UTransliterator * trans;
-};
-
-struct icu_normalizer * icu_normalizer_create(const char *rules, char action,
-                                              UErrorCode *status);
-
-
-void icu_normalizer_destroy(struct icu_normalizer * normalizer);
-
-int icu_normalizer_normalize(struct icu_normalizer * normalizer,
-                             struct icu_buf_utf16 * dest16,
-                             struct icu_buf_utf16 * src16,
-                             UErrorCode *status);
-
-enum icu_chain_step_type {
-    ICU_chain_step_type_none,
-    ICU_chain_step_type_display,   /* convert to utf8 display format */
-    ICU_chain_step_type_index,     /* convert to utf8 index format  */
-    ICU_chain_step_type_sortkey,   /* convert to utf8 sortkey format */
-    ICU_chain_step_type_casemap,   /* apply utf16 charmap */
-    ICU_chain_step_type_normalize, /* apply utf16 normalization */
-    ICU_chain_step_type_tokenize   /* apply utf16 tokenization */
-};
-
-
-
-struct icu_chain_step
-{
-    /* type and action object */
-    enum icu_chain_step_type type;
-    union {
-       struct icu_casemap * casemap;
-       struct icu_normalizer * normalizer;
-       struct icu_tokenizer * tokenizer;  
-    } u;
-    /* temprary post-action utf16 buffer */
-    struct icu_buf_utf16 * buf16;  
-    struct icu_chain_step * previous;
-    int more_tokens;
-    int need_new_token;
-};
-
-
-struct icu_chain;
-
-struct icu_chain_step * icu_chain_step_create(struct icu_chain * chain,
-                                              enum icu_chain_step_type type,
-                                              const uint8_t * rule,
-                                              struct icu_buf_utf16 * buf16,
-                                              UErrorCode *status);
-
-
-void icu_chain_step_destroy(struct icu_chain_step * step);
-
-
-struct icu_chain
-{
-    uint8_t identifier[128];
-    uint8_t locale[16];
-    
-    /* number of tokens returned so far */
-    int32_t token_count;
-    
-    /* utf8 output buffers */
-    struct icu_buf_utf8 * display8;
-    struct icu_buf_utf8 * norm8;
-    struct icu_buf_utf8 * sort8;
-    
-    /* utf16 source buffer */
-    struct icu_buf_utf16 * src16;
-    
-    /* linked list of chain steps */
-    struct icu_chain_step * steps;
-};
-
-struct icu_chain * icu_chain_create(const uint8_t * identifier, 
-                                    const uint8_t * locale);
-
-void icu_chain_destroy(struct icu_chain * chain);
-
-struct icu_chain * icu_chain_xml_config(xmlNode *xml_node, 
-                                        UErrorCode * status);
-
-
-struct icu_chain_step * icu_chain_insert_step(struct icu_chain * chain,
-                                              enum icu_chain_step_type type,
-                                              const uint8_t * rule,
-                                              UErrorCode *status);
-
-
-int icu_chain_step_next_token(struct icu_chain * chain,
-                              struct icu_chain_step * step,
-                              UErrorCode *status);
-
-int icu_chain_assign_cstr(struct icu_chain * chain,
-                          const char * src8cstr, 
-                          UErrorCode *status);
-
-int icu_chain_next_token(struct icu_chain * chain,
-                         UErrorCode *status);
-
-int icu_chain_get_token_count(struct icu_chain * chain);
+int icu_transform_trans(struct icu_transform * transform,
+                        struct icu_buf_utf16 * dest16,
+                        const struct icu_buf_utf16 * src16,
+                        UErrorCode *status);
 
-const char * icu_chain_get_display(struct icu_chain * chain);
+struct icu_chain_step;
 
-const char * icu_chain_get_norm(struct icu_chain * chain);
+int icu_chain_token_number(yaz_icu_chain_t chain);
 
-const char * icu_chain_get_sort(struct icu_chain * chain);
+yaz_icu_chain_t icu_chain_create(const char * locale,
+                                 int sort,
+                                 UErrorCode * status);
 
 #endif /* ICU_I18NL_H */
 
 /*
  * Local variables:
  * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
  * indent-tabs-mode: nil
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab
  */
+