1 files changed, 111 insertions, 0 deletions
diff --git a/src/storage/chewing_key.h b/src/storage/chewing_key.h
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+++ b/src/storage/chewing_key.h
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+/* 
+ *  libpinyin
+ *  Library to deal with pinyin.
+ *  
+ *  Copyright (C) 2011 Peng Wu <alexepico@gmail.com>
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef CHEWING_KEY_H
+#define CHEWING_KEY_H
+
+#include <glib.h>
+#include "chewing_enum.h"
+
+using namespace pinyin;
+
+G_BEGIN_DECLS
+
+/** @file chewing_key.h
+ *  @brief the definitions of chewing key related classes and structs.
+ */
+
+
+/** Note: The parsed pinyins are stored in the following two
+ *          GArrays to speed up chewing table lookup.
+ *    As the chewing large table only contains information of struct ChewingKey.
+ */
+
+struct _ChewingKey
+{
+    guint16 m_initial : 5;
+    guint16 m_middle  : 2;
+    guint16 m_final   : 5;
+    guint16 m_tone    : 3;
+
+    _ChewingKey() {
+        m_initial = CHEWING_ZERO_INITIAL;
+        m_middle  = CHEWING_ZERO_MIDDLE;
+        m_final   = CHEWING_ZERO_FINAL;
+        m_tone    = CHEWING_ZERO_TONE;
+    }
+
+    _ChewingKey(ChewingInitial initial, ChewingMiddle middle,
+               ChewingFinal final) {
+        m_initial = initial;
+        m_middle = middle;
+        m_final = final;
+        m_tone = CHEWING_ZERO_TONE;
+    }
+
+public:
+    gint get_table_index();
+
+    /* Note: the return value should be freed by g_free. */
+    gchar * get_pinyin_string();
+    gchar * get_shengmu_string();
+    gchar * get_yunmu_string();
+    gchar * get_chewing_string();
+};
+
+typedef struct _ChewingKey ChewingKey;
+
+static inline bool operator == (ChewingKey lhs, ChewingKey rhs) {
+    if (lhs.m_initial != rhs.m_initial)
+        return false;
+    if (lhs.m_middle  != rhs.m_middle)
+        return false;
+    if (lhs.m_final   != rhs.m_final)
+        return false;
+    if (lhs.m_tone    != rhs.m_tone)
+        return false;
+    return true;
+}
+
+struct _ChewingKeyRest
+{
+    /* Note: the table index is removed,
+     *   Please use get_table_index in ChewingKey.
+     */
+    guint16 m_raw_begin;           /* the begin of the raw input. */
+    guint16 m_raw_end;             /* the end of the raw input. */
+
+    _ChewingKeyRest() {
+        /* the 0th item in pinyin parser table is reserved for invalid. */
+        m_raw_begin = 0;
+        m_raw_end = 0;
+    }
+
+    guint16 length() {
+        return m_raw_end - m_raw_begin;
+    }
+};
+
+typedef struct _ChewingKeyRest ChewingKeyRest;
+
+G_END_DECLS
+
+#endif