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/******************************************************************************
*
* osisvariants.cpp - SWFilter descendant to hide or show textual variants
* in an OSIS module
*
* $Id: osisvariants.cpp 2980 2013-09-14 21:51:47Z scribe $
*
* Copyright 2006-2013 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.
*
*/
#include <stdlib.h>
#include <osisvariants.h>
#include <utilstr.h>
#include <utilxml.h>
SWORD_NAMESPACE_START
namespace {
static const char oName[] = "Textual Variants";
static const char oTip[] = "Switch between Textual Variants modes";
static const char *choices[4] = { "Primary Reading", "Secondary Reading", "All Readings", "" };
static const StringList *oValues() {
static const StringList oVals(&choices[0], &choices[3]);
return &oVals;
}
}
OSISVariants::OSISVariants() : SWOptionFilter(oName, oTip, oValues()) {
}
OSISVariants::~OSISVariants() {
}
char OSISVariants::processText(SWBuf &text, const SWKey *key, const SWModule *module)
{
int option = 0;
if (optionValue == choices[0]) option = 0;
else if (optionValue == choices[1]) option = 1;
else option = 2;
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();
XMLTag tag;
//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* variantChoice = (option == 0) ? "x-2" : "x-1";
for (text = ""; *from; from++) {
if (*from == '<') {
intoken = true;
token = "";
continue;
}
else if (*from == '>') { // process tokens
intoken = false;
if (!strncmp(token.c_str(), "seg", 3)) {
tag = token;
if (tag.getAttribute("type") && !strcmp("x-variant", tag.getAttribute("type")) && tag.getAttribute("subType") && !strcmp(variantChoice, tag.getAttribute("subType"))) {
invar = true;
hide = true;
continue;
}
}
if (!strncmp(token.c_str(), "/seg", 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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