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/******************************************************************************
*
* osisheadings.cpp - SWFilter descendant to hide or show headings
* in an OSIS module
*
* $Id: osisheadings.cpp 3423 2016-06-25 13:21:48Z scribe $
*
* Copyright 2003-2013 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 <stdio.h>
#include <osisheadings.h>
#include <swmodule.h>
#include <utilxml.h>
#include <utilstr.h>
SWORD_NAMESPACE_START
namespace {
static const char oName[] = "Headings";
static const char oTip[] = "Toggles Headings On and Off if they exist";
static const StringList *oValues() {
static const SWBuf choices[3] = {"Off", "On", ""};
static const StringList oVals(&choices[0], &choices[2]);
return &oVals;
}
class MyUserData : public BasicFilterUserData {
public:
SWBuf currentHeadingName;
XMLTag currentHeadingTag;
const char *sID;
SWBuf heading;
int depth;
int headerNum;
bool canonical;
MyUserData(const SWModule *module, const SWKey *key) : BasicFilterUserData(module, key) {
clear();
}
void clear() {
currentHeadingName = "";
currentHeadingTag = "";
sID = 0;
heading = "";
depth = 0;
headerNum = 0;
canonical=false;
}
};
}
BasicFilterUserData *OSISHeadings::createUserData(const SWModule *module, const SWKey *key) {
return new MyUserData(module, key);
}
OSISHeadings::OSISHeadings() : SWOptionFilter(oName, oTip, oValues()) {
setPassThruUnknownToken(true);
}
bool OSISHeadings::handleToken(SWBuf &buf, const char *token, BasicFilterUserData *userData) {
MyUserData *u = (MyUserData *)userData;
XMLTag tag(token);
SWBuf name = tag.getName();
// we only care about titles and divs or if we're already in a heading
//
// are we currently in a heading?
if (u->currentHeadingName.size()) {
u->heading.append(u->lastTextNode);
if (SWBuf("true") == tag.getAttribute("canonical")) u->canonical = true;
if (name == u->currentHeadingName) {
if (tag.isEndTag(u->sID)) {
if (!u->depth-- || u->sID) {
// see comment below about preverse div changed and needing to preserve the <title> container tag for old school pre-verse titles
// we've just finished a heading. It's all stored up in u->heading
bool preverse = (SWBuf("x-preverse") == u->currentHeadingTag.getAttribute("subType") || SWBuf("x-preverse") == u->currentHeadingTag.getAttribute("subtype"));
// do we want to put anything in EntryAttributes?
if (u->module->isProcessEntryAttributes() && (option || u->canonical || !preverse)) {
SWBuf buf; buf.appendFormatted("%i", u->headerNum++);
// leave the actual <title...> wrapper in if we're part of an old school preverse title
// because now frontend have to deal with preverse as a div which may or may not include <title> elements
// and they can't simply wrap all preverse material in <h1>, like they probably did previously
SWBuf heading;
if (u->currentHeadingName == "title") {
XMLTag wrapper = u->currentHeadingTag;
if (SWBuf("x-preverse") == wrapper.getAttribute("subType")) wrapper.setAttribute("subType", 0);
else if (SWBuf("x-preverse") == wrapper.getAttribute("subtype")) wrapper.setAttribute("subtype", 0);
heading = wrapper;
heading += u->heading;
heading += tag;
}
else heading = u->heading;
u->module->getEntryAttributes()["Heading"][(preverse)?"Preverse":"Interverse"][buf] = heading;
StringList attributes = u->currentHeadingTag.getAttributeNames();
for (StringList::const_iterator it = attributes.begin(); it != attributes.end(); it++) {
u->module->getEntryAttributes()["Heading"][buf][it->c_str()] = u->currentHeadingTag.getAttribute(it->c_str());
}
}
// do we want the heading in the body?
if (!preverse && (option || u->canonical)) {
buf.append(u->currentHeadingTag);
buf.append(u->heading);
buf.append(tag);
}
u->suspendTextPassThru = false;
u->clear();
}
}
else u->depth++;
}
u->heading.append(tag);
return true;
}
// are we a title or a preverse div?
else if ( name == "title"
|| (name == "div"
&& ( SWBuf("x-preverse") == tag.getAttribute("subType")
|| SWBuf("x-preverse") == tag.getAttribute("subtype")))) {
u->currentHeadingName = name;
u->currentHeadingTag = tag;
u->heading = "";
u->sID = u->currentHeadingTag.getAttribute("sID");
u->depth = 0;
u->suspendTextPassThru = true;
u->canonical = (SWBuf("true") == tag.getAttribute("canonical"));
return true;
}
return false;
}
SWORD_NAMESPACE_END
|
