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* libpyzy - The Chinese PinYin and Bopomofo conversion library.
*
* Copyright (c) 2008-2010 Peng Huang <shawn.p.huang@gmail.com>
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "PyZyDoublePinyinContext.h"
#include "PyZyConfig.h"
#include "PyZyPinyinParser.h"
namespace PyZy {
#define DEFINE_DOUBLE_PINYIN_TABLES
#include "PyZyDoublePinyinTable.h"
/*
* c in 'a' ... 'z' => id = c - 'a'
* c == ';' => id = 26
* else => id = -1
*/
#define ID(c) \
((c >= 'a' && c <= 'z') ? c - 'a' : (c == ';' ? 26 : -1))
#define ID_TO_SHENG(id) \
(double_pinyin_map[m_config.doublePinyinSchema ()].sheng[id])
#define ID_TO_YUNS(id) \
(double_pinyin_map[m_config.doublePinyinSchema ()].yun[id])
#define IS_ALPHA(c) \
((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))
DoublePinyinContext::DoublePinyinContext (Config & config, PhoneticContext::Observer *observer)
: PinyinContext (config, observer)
{
}
DoublePinyinContext::~DoublePinyinContext ()
{
}
bool
DoublePinyinContext::insert (char ch)
{
gint id;
/* is full */
if (G_UNLIKELY (m_text.length () >= MAX_PINYIN_LEN))
id = ID (ch);
if (id == -1) {
/* it is not availidate ch */
}
if (G_UNLIKELY (m_text.empty () &&
ID_TO_SHENG (id) == PINYIN_ID_VOID)) {
}
m_text.insert (m_cursor++, ch);
if (m_cursor > m_pinyin_len + 2 || updatePinyin (false) == false) {
if (!IS_ALPHA (ch)) {
m_text.erase (--m_cursor, 1);
}
else {
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
}
}
else {
updateSpecialPhrases ();
updatePhraseEditor ();
update ();
DoublePinyinContext::removeCharBefore (void)
{
if (G_UNLIKELY (m_cursor == 0))
m_cursor --;
m_text.erase (m_cursor, 1);
updateSpecialPhrases ();
updatePhraseEditor ();
update ();
}
else {
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
}
DoublePinyinContext::removeCharAfter (void)
{
if (G_UNLIKELY (m_cursor == m_text.length ()))
m_text.erase (m_cursor, 1);
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
DoublePinyinContext::removeWordBefore (void)
{
if (G_UNLIKELY (m_cursor == 0))
if (G_UNLIKELY (m_cursor > m_pinyin_len)) {
m_text.erase (m_pinyin_len, m_cursor - m_pinyin_len);
m_cursor = m_pinyin_len;
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
}
else {
m_pinyin_len = m_pinyin.back ().begin;
m_pinyin.pop_back ();
m_text.erase (m_pinyin_len, m_cursor - m_pinyin_len);
m_cursor = m_pinyin_len;
updateSpecialPhrases ();
updatePhraseEditor ();
update ();
}
DoublePinyinContext::removeWordAfter (void)
{
if (G_UNLIKELY (m_cursor == m_text.length ()))
m_text.erase (m_cursor);
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
DoublePinyinContext::moveCursorLeft (void)
{
if (G_UNLIKELY (m_cursor == 0))
m_cursor --;
if (m_cursor >= m_pinyin_len) {
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
}
else {
updateSpecialPhrases ();
updatePhraseEditor ();
update ();
}
else {
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
}
}
DoublePinyinContext::moveCursorRight (void)
{
if (G_UNLIKELY (m_cursor == m_text.length ()))
updateSpecialPhrases ();
updatePhraseEditor ();
update ();
}
else {
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
}
DoublePinyinContext::moveCursorLeftByWord (void)
{
if (G_UNLIKELY (m_cursor == 0))
if (G_UNLIKELY (m_cursor > m_pinyin_len)) {
m_cursor = m_pinyin_len;
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
}
else {
m_cursor = m_pinyin_len = m_pinyin.back ().begin;
m_pinyin.pop_back ();
updateSpecialPhrases ();
updatePhraseEditor ();
update ();
}
DoublePinyinContext::moveCursorRightByWord (void)
{
return moveCursorToEnd ();
}
DoublePinyinContext::moveCursorToBegin (void)
{
if (G_UNLIKELY (m_cursor == 0))
m_cursor = 0;
m_pinyin.clear ();
m_pinyin_len = 0;
updateSpecialPhrases ();
updatePhraseEditor ();
update ();
DoublePinyinContext::moveCursorToEnd (void)
{
if (G_UNLIKELY (m_cursor == m_text.length ()))
updateSpecialPhrases ();
updatePhraseEditor ();
update ();
}
else {
if (updateSpecialPhrases ()) {
update ();
}
else {
updatePreeditText ();
updateAuxiliaryText ();
}
}
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}
inline const Pinyin *
DoublePinyinContext::isPinyin (gint i)
{
if ((m_config.option () & PINYIN_INCOMPLETE_PINYIN) == 0) {
return NULL;
}
gint8 sheng = ID_TO_SHENG (i);
if (sheng == PINYIN_ID_VOID) {
return NULL;
}
return PinyinParser::isPinyin (sheng, 0, PINYIN_INCOMPLETE_PINYIN);
}
inline const Pinyin *
DoublePinyinContext::isPinyin (gint i, gint j)
{
const Pinyin *pinyin;
gint8 sheng = ID_TO_SHENG (i);
const gint8 *yun = ID_TO_YUNS (j);
if (sheng == PINYIN_ID_VOID || yun[0] == PINYIN_ID_VOID)
return NULL;
if (sheng == PINYIN_ID_ZERO && yun[0] == PINYIN_ID_ZERO)
return NULL;
if (yun[1] == PINYIN_ID_VOID) {
return PinyinParser::isPinyin (sheng, yun[0],
m_config.option () & (PINYIN_FUZZY_ALL | PINYIN_CORRECT_V_TO_U));
}
pinyin = PinyinParser::isPinyin (sheng, yun[0],
m_config.option () & (PINYIN_FUZZY_ALL));
if (pinyin == NULL)
pinyin = PinyinParser::isPinyin (sheng, yun[1],
m_config.option () & (PINYIN_FUZZY_ALL));
if (pinyin != NULL)
return pinyin;
/* if sheng == j q x y and yun == v, try to correct v to u */
if ((m_config.option () & PINYIN_CORRECT_V_TO_U) == 0)
return NULL;
if (yun[0] != PINYIN_ID_V && yun[1] != PINYIN_ID_V)
return NULL;
switch (sheng) {
case PINYIN_ID_J:
case PINYIN_ID_Q:
case PINYIN_ID_X:
case PINYIN_ID_Y:
return PinyinParser::isPinyin (sheng, PINYIN_ID_V,
m_config.option () & (PINYIN_FUZZY_ALL | PINYIN_CORRECT_V_TO_U));
default:
return NULL;
}
}
inline bool
DoublePinyinContext::updatePinyin (bool all)
if (all &&
(m_pinyin_len != 0 || !m_pinyin.empty ())) {
m_pinyin.clear ();
m_pinyin_len = 0;
}
if (m_pinyin_len > m_cursor) {
while (m_pinyin_len > m_cursor) {
m_pinyin_len = m_pinyin.back ().begin;
m_pinyin.pop_back ();
}
}
if (m_pinyin_len == m_cursor) {
return retval;
}
if (m_pinyin_len < m_cursor) {
guint len = m_pinyin_len;
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m_pinyin.back ()->flags & PINYIN_INCOMPLETE_PINYIN) {
const Pinyin *pinyin = isPinyin (ID (m_text[m_pinyin_len -1]),ID (m_text[m_pinyin_len]));
if (pinyin) {
m_pinyin.pop_back ();
m_pinyin.append (pinyin, m_pinyin_len - 1, 2);
m_pinyin_len += 1;
}
}
while (m_pinyin_len < m_cursor && m_pinyin.size () < MAX_PHRASE_LEN) {
const Pinyin *pinyin = NULL;
if (m_pinyin_len == m_cursor - 1) {
pinyin = isPinyin (ID (m_text[m_pinyin_len]));
}
else {
pinyin = isPinyin (ID (m_text[m_pinyin_len]), ID (m_text[m_pinyin_len + 1]));
if (pinyin == NULL)
pinyin = isPinyin (ID (m_text[m_pinyin_len]));
}
if (pinyin == NULL)
break;
if (pinyin->flags & PINYIN_INCOMPLETE_PINYIN) {
m_pinyin.append (pinyin, m_pinyin_len, 1);
m_pinyin_len += 1;
}
else {
m_pinyin.append (pinyin, m_pinyin_len, 2);
m_pinyin_len += 2;
}
}
if (len == m_pinyin_len)
return retval;
}
return retval;
}
}; // namespace PyZy