private static ITsString GetSpaceAdjustedPunctString(ILgWritingSystemFactory wsFactory, ITsStrFactory tsStrFactory,
item item, ITsString wordString, char space, bool followsWord)
{
if(item.Value.Length > 0)
{
var index = 0;
ITsString tempValue = AdjustPunctStringForCharacter(wsFactory, tsStrFactory, item, wordString, item.Value[index], index, space, followsWord);
if(item.Value.Length > 1)
{
index = item.Value.Length - 1;
tempValue = AdjustPunctStringForCharacter(wsFactory, tsStrFactory, item, tempValue, item.Value[index], index, space, followsWord);
}
return tempValue;
}
return wordString;
}
private static ITsString AdjustPunctStringForCharacter(
ILgWritingSystemFactory wsFactory, ITsStrFactory tsStrFactory,
item item, ITsString wordString, char punctChar, int index,
char space, bool followsWord)
{
bool spaceBefore = false;
bool spaceAfter = false;
bool spaceHere = false;
char quote = '"';
var charType = Icu.GetCharType(punctChar);
switch (charType)
{
case Icu.UCharCategory.U_END_PUNCTUATION:
case Icu.UCharCategory.U_FINAL_PUNCTUATION:
spaceAfter = true;
break;
case Icu.UCharCategory.U_START_PUNCTUATION:
case Icu.UCharCategory.U_INITIAL_PUNCTUATION:
spaceBefore = true;
break;
case Icu.UCharCategory.U_OTHER_PUNCTUATION: //handle special characters
if(wordString.Text.LastIndexOfAny(new[] {',','.',';',':','?','!',quote}) == wordString.Length - 1) //treat as ending characters
{
spaceAfter = punctChar != '"' || wordString.Length > 1; //quote characters are extra special, if we find them on their own
//it is near impossible to know what to do, but it's usually nothing.
}
if (punctChar == '\xA1' || punctChar == '\xBF')
{
spaceHere = true;
}
if (punctChar == quote && wordString.Length == 1)
{
spaceBefore = followsWord; //if we find a lonely quotation mark after a word, we'll put a space before it.
}
break;
}
var wordBuilder = wordString.GetBldr();
if(spaceBefore) //put a space to the left of the punct
{
ILgWritingSystem wsEngine;
if (TryGetWsEngine(wsFactory, item.lang, out wsEngine))
{
wordBuilder.ReplaceTsString(0, 0, tsStrFactory.MakeString("" + space,
wsEngine.Handle));
}
wordString = wordBuilder.GetString();
}
if (spaceHere && followsWord && !LastCharIsSpaceOrQuote(wordString, index, space, quote))
{
ILgWritingSystem wsEngine;
if (TryGetWsEngine(wsFactory, item.lang, out wsEngine))
{
wordBuilder.ReplaceTsString(index, index, tsStrFactory.MakeString("" + space,
wsEngine.Handle));
}
wordString = wordBuilder.GetString();
}
if(spaceAfter) //put a space to the right of the punct
{
ILgWritingSystem wsEngine;
if (TryGetWsEngine(wsFactory, item.lang, out wsEngine))
{
wordBuilder.ReplaceTsString(wordBuilder.Length, wordBuilder.Length,
tsStrFactory.MakeString("" + space, wsEngine.Handle));
}
wordString = wordBuilder.GetString();
}
//otherwise punct doesn't deserve a space.
return wordString;
}
private static void NormalizeItems(item[] items)
{
if (items == null)
return;
foreach (var item in items)
{
if (item.Value == null)
continue;
item.Value = item.Value.Normalize(NormalizationForm.FormD);
}
}