error_t editor_set_nchar_max(t_HWidget handle, int nchars)
{
error_t ret = EBADPARM;
if(g_object_valid(handle)){
t_CEditor *pme = (t_CEditor *)handle;
ucs2_t *newbuf;
if(nchars <= 0)
nchars = NCHARS_MAX_DEFAULT;
newbuf = MALLOC((nchars+1) * sizeof(ucs2_t));
if(pme->nchars > 0 && pme->buffer){
if(pme->nchars > nchars){
pme->nchars = nchars;
pme->utf8_bytes = ustring_to_utf8(pme->buffer, pme->nchars, NULL, -1);
}
memcpy(newbuf, pme->buffer, pme->nchars*sizeof(ucs2_t));
}else{
pme->nchars = 0;
}
FREEIF(pme->buffer);
pme->nchars_max = nchars;
pme->buffer = newbuf;
pme->cursor = pme->nchars;
pme->buffer[pme->nchars] = 0;
ret = SUCCESS;
}
return ret;
}
static gchar *
transliterator_icu_real_transliterate (TranslitTransliterator *self,
const gchar *input,
guint *endpos,
GError **error)
{
TransliteratorIcu *icu = TRANSLITERATOR_ICU (self);
gchar *output;
gint n_filtered = 0;
UChar *ustr;
int32_t ustrLength, ustrCapacity, limit;
int32_t inputUstrLength;
UErrorCode errorCode;
ustr = ustring_from_utf8 (input, &ustrLength);
inputUstrLength = ustrLength;
limit = ustrLength;
ustrCapacity = ustrLength + 1;
do
{
errorCode = 0;
/* We can't use utrans_transIncrementalUChars here, since the
* output is sometimes unacceptable.
*
* For example, with the "Latin-Katakana" transliterator,
* "kakikukeko" does not turn into Japanese characters until one
* more vovel character follows.
*/
utrans_transUChars (icu->trans,
ustr, &ustrLength, ustrCapacity,
0, &limit,
&errorCode);
if (errorCode == U_BUFFER_OVERFLOW_ERROR)
{
ustrCapacity = ustrLength + 1;
ustr = g_realloc (ustr, ustrCapacity);
ustrLength = inputUstrLength;
limit = inputUstrLength;
}
}
while (errorCode == U_BUFFER_OVERFLOW_ERROR);
if (errorCode != U_ZERO_ERROR)
{
g_free (ustr);
g_set_error (error,
TRANSLIT_ERROR,
TRANSLIT_ERROR_FAILED,
"failed to transliterate: %s", u_errorName (errorCode));
return NULL;
}
output = ustring_to_utf8 (ustr, ustrLength);
g_free (ustr);
if (endpos)
*endpos = inputUstrLength;
return output;
}
static void
ibus_hangul_engine_update_hanja_list (IBusHangulEngine *hangul)
{
gchar* hanja_key;
gchar* preedit_utf8;
const ucschar* hic_preedit;
UString* preedit;
int lookup_method;
IBusText* ibus_text = NULL;
guint cursor_pos = 0;
guint anchor_pos = 0;
if (hangul->hanja_list != NULL) {
hanja_list_delete (hangul->hanja_list);
hangul->hanja_list = NULL;
}
hic_preedit = hangul_ic_get_preedit_string (hangul->context);
hanja_key = NULL;
lookup_method = LOOKUP_METHOD_PREFIX;
preedit = ustring_dup (hangul->preedit);
ustring_append_ucs4 (preedit, hic_preedit, -1);
if (ustring_length(preedit) > 0) {
preedit_utf8 = ustring_to_utf8 (preedit, -1);
if (word_commit || hangul->hanja_mode) {
hanja_key = preedit_utf8;
lookup_method = LOOKUP_METHOD_PREFIX;
} else {
gchar* substr;
ibus_engine_get_surrounding_text ((IBusEngine *)hangul, &ibus_text,
&cursor_pos, &anchor_pos);
substr = h_ibus_text_get_substring (ibus_text,
cursor_pos - 64, cursor_pos);
if (substr != NULL) {
hanja_key = g_strconcat (substr, preedit_utf8, NULL);
g_free (preedit_utf8);
} else {
hanja_key = preedit_utf8;
}
lookup_method = LOOKUP_METHOD_SUFFIX;
}
} else {
ibus_engine_get_surrounding_text ((IBusEngine *)hangul, &ibus_text,
&cursor_pos, &anchor_pos);
if (cursor_pos != anchor_pos) {
// If we have selection in surrounding text, we use that.
hanja_key = h_ibus_text_get_substring (ibus_text,
cursor_pos, anchor_pos);
lookup_method = LOOKUP_METHOD_EXACT;
} else {
hanja_key = h_ibus_text_get_substring (ibus_text,
cursor_pos - 64, cursor_pos);
lookup_method = LOOKUP_METHOD_SUFFIX;
}
}
if (hanja_key != NULL) {
hangul->hanja_list = ibus_hangul_engine_lookup_hanja_table (hanja_key,
lookup_method);
hangul->last_lookup_method = lookup_method;
g_free (hanja_key);
}
ustring_delete (preedit);
if (ibus_text != NULL)
g_object_unref (ibus_text);
}
