write class TradSimpConverter

1 files changed, 84 insertions, 0 deletions

diff --git a/src/ZYTradSimpConverter.cc b/src/ZYTradSimpConverter.cc
new file mode 100644
index 0000000..fceadb7
--- /dev/null
+++ b/src/ZYTradSimpConverter.cc
@@ -0,0 +1,84 @@
+/* vim:set et ts=4 sts=4:
+ *
+ * ibus-libzhuyin - New Zhuyin engine based on libzhuyin for IBus
+ *
+ * Copyright (c) 2014 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, 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "ZYTradSimpConverter.h"
+
+#include <opencc.h>
+
+#include "ZYTypes.h"
+#include "ZYString.h"
+
+namespace ZY {
+
+class opencc {
+    static const int BUFFER_SIZE = 64;
+public:
+    opencc (void)
+    {
+        m_cc = opencc_open (OPENCC_DEFAULT_CONFIG_TRAD_TO_SIMP);
+        g_assert (m_cc != NULL);
+    }
+
+    ~opencc (void)
+    {
+        opencc_close (m_cc);
+    }
+
+    void convert (const gchar *in, String &out)
+    {
+        glong n_char;
+        gunichar *in_ucs4 = g_utf8_to_ucs4_fast (in, -1, &n_char);
+
+        ucs4_t *pinbuf = (ucs4_t *)in_ucs4;
+        size_t inbuf_left = n_char;
+        while (inbuf_left != 0) {
+            ucs4_t *poutbuf = (ucs4_t *)m_buffer;
+            size_t outbuf_left = BUFFER_SIZE;
+            size_t retval = opencc_convert(m_cc, &pinbuf, &inbuf_left, &poutbuf, &outbuf_left);
+            if (retval == (size_t) -1) {
+                /* append left chars in pinbuf */
+                g_warning ("opencc_convert return failed");
+                out << (gunichar *) pinbuf;
+                break;
+            }
+            *poutbuf = L'\0';
+            out << m_buffer;
+        }
+        g_free (in_ucs4);
+    }
+
+private:
+    opencc_t m_cc;
+    gunichar m_buffer[BUFFER_SIZE + 1];
+};
+
+void
+TradSimpConverter::tradToSimp (const gchar *in, String &out)
+{
+    static opencc cc;
+    cc.convert (in, out);
+}
+
+};