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/******************************************************************************
*
* thmlvariants - SWFilter descendant to hide or show textual variants
* in a ThML module.
*
*
* 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 <thmlvariants.h>
#include <utilstr.h>
SWORD_NAMESPACE_START
const char ThMLVariants::primary[] = "Primary Reading";
const char ThMLVariants::secondary[] = "Secondary Reading";
const char ThMLVariants::all[] = "All Readings";
const char ThMLVariants::optName[] = "Textual Variants";
const char ThMLVariants::optTip[] = "Switch between Textual Variants modes";
ThMLVariants::ThMLVariants() {
option = false;
options.push_back(primary);
options.push_back(secondary);
options.push_back(all);
}
ThMLVariants::~ThMLVariants() {
}
void ThMLVariants::setOptionValue(const char *ival)
{
if (!stricmp(ival, primary)) option = 0;
else if (!stricmp(ival, secondary)) option = 1;
else option = 2;
}
const char *ThMLVariants::getOptionValue()
{
if (option == 0) {
return primary;
}
else if (option == 1) {
return secondary;
}
else {
return all;
}
}
char ThMLVariants::processText(SWBuf &text, const SWKey *key, const SWModule *module)
{
if ( option == 0 || option == 1) { //we want primary or variant only
bool intoken = false;
bool hide = false;
bool invar = false;
SWBuf token;
SWBuf orig = text;
const char *from = orig.c_str();
//we use a fixed comparision string to make sure the loop is as fast as the original two blocks with almost the same code
const char* variantCompareString = (option == 0) ? "div type=\"variant\" class=\"1\"" : "div type=\"variant\" class=\"2\"";
for (text = ""; *from; from++) {
if (*from == '<') {
intoken = true;
token = "";
continue;
}
else if (*from == '>') { // process tokens
intoken = false;
if ( !strncmp(token.c_str(), variantCompareString, 28)) { //only one of the variants, length of the two strings is 28 in both cases
invar = true;
hide = true;
continue;
}
if (!strncmp(token.c_str(), "div type=\"variant\"", 18)) {
invar = true;
continue;
}
if (!strncmp(token.c_str(), "/div", 4)) {
hide = false;
if (invar) {
invar = false;
continue;
}
}
if (!hide) {
text += '<';
text.append(token);
text += '>';
}
continue;
}
if (intoken) {
token += *from;
}
else if (!hide) {
text += *from;
}
}
}
return 0;
}
SWORD_NAMESPACE_END
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