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/******************************************************************************
*
* utf8arshaping.cpp - SWFilter descendant to perform Arabic shaping on
* UTF-8 text
*
* $Id: utf8arshaping.cpp 2931 2013-07-31 13:07:26Z scribe $
*
* Copyright 2001-2013 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.
*
*/
#ifdef _ICU_
#include <stdlib.h>
#include <utilstr.h>
#include <utf8arshaping.h>
#include <swbuf.h>
SWORD_NAMESPACE_START
UTF8arShaping::UTF8arShaping() : err(U_ZERO_ERROR) {
conv = ucnv_open("UTF-8", &err);
}
UTF8arShaping::~UTF8arShaping() {
ucnv_close(conv);
}
char UTF8arShaping::processText(SWBuf &text, const SWKey *key, const SWModule *module)
{
UChar *ustr, *ustr2;
if ((unsigned long)key < 2) // hack, we're en(1)/de(0)ciphering
return -1;
int32_t len = text.length();
ustr = new UChar[len];
ustr2 = new UChar[len];
// Convert UTF-8 string to UTF-16 (UChars)
len = ucnv_toUChars(conv, ustr, len, text.c_str(), -1, &err);
len = u_shapeArabic(ustr, len, ustr2, len, U_SHAPE_LETTERS_SHAPE | U_SHAPE_DIGITS_EN2AN, &err);
text.setSize(text.size()*2);
len = ucnv_fromUChars(conv, text.getRawData(), text.size(), ustr2, len, &err);
text.setSize(len);
delete [] ustr2;
delete [] ustr;
return 0;
}
SWORD_NAMESPACE_END
#endif
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