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/******************************************************************************
*
* UTF8ArabicPoints - SWFilter descendant to remove UTF-8 Arabic vowel points
*
* $Id: utf8arabicpoints.h 1688 2008-11-30 04:42:26Z refdoc $
*
* Copyright 2009 CrossWire Bible Society (http://www.crosswire.org)
* CrossWire Bible Society
* P. O. Box 2528
* Tempe, AZ 85280-2528
*
* 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 version 2.
*
* 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.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <utf8arabicpoints.h>
SWORD_NAMESPACE_START
const char oName[] = "Arabic Vowel Points";
const char oTip[] = "Toggles Arabic Vowel Points";
const SWBuf choices[3] = {"On", "Off", ""};
const StringList oValues(&choices[0], &choices[2]);
UTF8ArabicPoints::UTF8ArabicPoints() : SWOptionFilter(oName, oTip, &oValues) {
setOptionValue("On");
}
UTF8ArabicPoints::~UTF8ArabicPoints(){};
char UTF8ArabicPoints::processText(SWBuf &text, const SWKey *key, const SWModule *module) {
if (!option) {
//The UTF-8 range 0xFC 0xE5 to 0xFC 0x63 consist of Arabic vowel marks so block those out.
// Also ranges 0xFE70 til OxFE7F and 0x064b-0x0655
SWBuf orig = text;
const unsigned char* from = (unsigned char*)orig.c_str();
for (text = ""; *from; from++) {
if (((*from == 0xFC) && (*(from + 1) >= 0xE5 && *(from + 1) <= 0x63)) || ((*from == 0xFE) && (*(from + 1) >= 0x70 && *(from + 1) <= 0x7F)) || ((*from == 0x06) && (*(from + 1) >= 0x4B && *(from + 1) <= 0x55))){
from++;
}
else {
text += *from;
}
}
}
return 0;
}
SWORD_NAMESPACE_END
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