pinyin apis WIP

1 files changed, 125 insertions, 6 deletions

diff --git a/src/pinyin.cpp b/src/pinyin.cpp
index ca46287..381bd1f 100644
--- a/src/pinyin.cpp
+++ b/src/pinyin.cpp
@@ -25,12 +25,95 @@ struct _pinyin_context_t{
     MatchResults m_match_results;
     CandidateConstraints m_constraints;
 
-    const char * m_system_dir;
-    const char * m_user_dir;
+    char * m_system_dir;
+    char * m_user_dir;
 };
 
-pinyin_context_t * pinyin_init(const char * systemdir, const char * userdir);
-void pinyin_fini(pinyin_context_t * context);
+pinyin_context_t * pinyin_init(const char * systemdir, const char * userdir){
+    pinyin_context_t * context = new pinyin_context_t;
+
+    context->m_system_dir = g_strdup(systemdir);
+    context->m_user_dir = g_strdup(userdir);
+
+    context->m_pinyin_table = new PinyinLargeTable(&(context->m_custom));
+    MemoryChunk * chunk = new MemoryChunk;
+    gchar * filename = g_build_filename
+        (context->m_system_dir, "pinyin_index.bin");
+    chunk->load(filename);
+    context->m_pinyin_table->load(chunk);
+
+    context->m_validator.initialize(context->m_pinyin_table);
+    context->m_default_parser = new PinyinDefaultParser;
+    context->m_shuang_pin_parser = new PinyinShuangPinParser;
+
+    context->m_phrase_table = new PhraseLargeTable;
+    chunk = new MemoryChunk;
+    filename = g_build_filename(context->m_system_dir, "phrase_index.bin");
+    chunk->load(filename);
+    context->m_phrase_table->load(chunk);
+
+    context->m_phrase_index = new FacadePhraseIndex;
+    MemoryChunk * log = new MemoryChunk; chunk = new MemoryChunk;
+    filename = g_build_filename(context->m_system_dir, "gb_char.bin");
+    chunk->load(filename);
+    context->m_phrase_index->load(1, chunk);
+    filename = g_build_filename(context->m_user_dir, "gb_char.dbin");
+    log->load(filename);
+    context->m_phrase_index->merge(1, log);
+
+    log = new MemoryChunk; chunk = new MemoryChunk;
+    filename = g_build_filename(context->m_system_dir, "gbk_char.bin");
+    chunk->load(filename);
+    context->m_phrase_index->load(2, chunk);
+    filename = g_build_filename(context->m_user_dir, "gbk_char.dbin");
+    log->load(filename);
+    context->m_phrase_index->merge(2, log);
+
+    context->m_system_bigram = new Bigram;
+    filename = g_build_filename(context->m_system_dir, "system.db");
+    context->m_system_bigram->attach(filename, ATTACH_READONLY);
+    context->m_user_bigram = new Bigram;
+    filename = g_build_filename(context->m_user_dir, "user.db");
+    context->m_user_bigram->attach(filename, ATTACH_CREATE|ATTACH_READWRITE);
+
+    context->m_pinyin_lookup = new PinyinLookup
+        ( &(context->m_custom), context->m_pinyin_table,
+          context->m_phrase_index, context->m_system_bigram,
+          context->m_user_bigram);
+
+    context->m_phrase_lookup = new PhraseLookup
+        (context->m_phrase_table, context->m_phrase_index,
+         context->m_system_bigram, context->m_user_bigram);
+
+    context->m_pinyin_keys = g_array_new(FALSE, FALSE, sizeof(PinyinKey));
+    context->m_match_results = g_array_new
+        (FALSE, FALSE, sizeof(phrase_token_t));
+    context->m_constraints = g_array_new
+        (FALSE, FALSE, sizeof(lookup_constraint_t));
+
+    return context;
+}
+
+void pinyin_fini(pinyin_context_t * context){
+    delete context->m_default_parser;
+    delete context->m_shuang_pin_parser;
+    delete context->m_pinyin_table;
+    delete context->m_phrase_table;
+    delete context->m_phrase_index;
+    delete context->m_system_bigram;
+    delete context->m_user_bigram;
+    delete context->m_pinyin_lookup;
+    delete context->m_phrase_lookup;
+
+    g_array_free(context->m_pinyin_keys, true);
+    g_array_free(context->m_match_results, true);
+    g_array_free(context->m_constraints, true);
+
+    g_free(context->m_system_dir);
+    g_free(context->m_user_dir);
+
+    delete context;
+}
 
 /* copy from custom to context->m_custom. */
 bool pinyin_set_options(pinyin_context_t * context,
@@ -43,9 +126,21 @@ bool pinyin_set_options(pinyin_context_t * context,
 /* copy from pinyin_keys to m_pinyin_keys. */
 bool pinyin_set_pinyin_keys(pinyin_context_t * context,
                             PinyinKeyVector pinyin_keys){
+    size_t key_len = context->m_pinyin_keys->len;
     g_array_set_size(context->m_pinyin_keys, 0);
     g_array_append_vals(context->m_pinyin_keys,
                         pinyin_keys->data, pinyin_keys->len);
+
+    g_array_set_size(context->m_constraints, context->m_pinyin_keys->len);
+    for (size_t i = key_len; i < context->m_pinyin_keys->len; ++i ) {
+        lookup_constraint_t * constraint = 
+            &g_array_index(context->m_constraints, lookup_constraint_t, i);
+        constraint->m_type = NO_CONSTRAINT;
+    }
+
+    context->m_pinyin_lookup->validate_constraint
+        (context->m_constraints, context->m_pinyin_keys);
+
     return true;
 }
 
@@ -157,9 +252,33 @@ bool pinyin_train(pinyin_context_t * context){
     return retval;
 }
 
-bool pinyin_save(pinyin_context_t * context);
+bool pinyin_save(pinyin_context_t * context){
+    MemoryChunk * oldchunk = new MemoryChunk;
+    MemoryChunk * newlog = new MemoryChunk;
+
+    gchar * filename = g_build_filename(context->m_system_dir, "gb_char.bin");
+    oldchunk->load(filename);
+    context->m_phrase_index->diff(1, oldchunk, newlog);
+    filename = g_build_filename(context->m_user_dir, "gb_char.dbin");
+    newlog->save(filename);
+    delete newlog;
 
-bool pinyin_reset(pinyin_context_t * context);
+    oldchunk = new MemoryChunk; newlog = new MemoryChunk;
+    filename = g_build_filename(context->m_system_dir, "gbk_char.bin");
+    context->m_phrase_index->diff(2, oldchunk, newlog);
+    filename = g_build_filename(context->m_user_dir, "gbk_char.dbin");
+    newlog->save(filename);
+    delete newlog;
+
+    return true;
+}
+
+bool pinyin_reset(pinyin_context_t * context){
+    g_array_set_size(context->m_pinyin_keys, 0);
+    g_array_set_size(context->m_match_results, 0);
+    g_array_set_size(context->m_constraints, 0);
+    return true;
+}
 
 /** TODO: to be implemented.
  *  bool pinyin_get_guessed_sentence_with_prefix(...);