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tdewebdev/quanta/parsers/dtd/dtdparser.cpp

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/***************************************************************************
dtdparser.cpp - description
-------------------
begin : Sun Oct 19 16:47:20 EEST 2003
copyright : (C) 2003 Andras Mantia <amantia@kde.org>
***************************************************************************/
/***************************************************************************
* *
* 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 of the License. *
* *
***************************************************************************/
//qt includes
#include <tqcheckbox.h>
#include <tqfile.h>
#include <tqfileinfo.h>
#include <tqlabel.h>
#include <tqlineedit.h>
#include <tqregexp.h>
#include <tqstring.h>
//kde includes
#include <kconfig.h>
#include <kdebug.h>
#include <kdialogbase.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kurl.h>
#include <kio/netaccess.h>
//other includes
#ifdef LIBXML_2_5
#include <libxml/hash.h>
#endif
#include <libxml/parser.h>
#include <libxml/valid.h>
//own includes
#include "dtepeditdlg.h"
#include "dtdparser.h"
#include "qtag.h"
#include "dtepcreationdlg.h"
#include "quantacommon.h"
#include "qextfileinfo.h"
#define MAX_CHILD_ELEMENTS 100
namespace DTD
{
TQString dirName;
xmlDtdPtr dtd_ptr; /* Pointer to the parsed DTD */
TQTextStream entityStream;
}
void saveElement(xmlElementPtr elem, xmlBufferPtr buf);
void saveEntity(xmlEntityPtr entity, xmlBufferPtr buf);
DTDParser::DTDParser(const KURL& dtdURL, const TQString &dtepDir)
{
m_dtdURL = dtdURL;
m_dtepDir = dtepDir;
}
DTDParser::~DTDParser()
{
}
bool DTDParser::parse(const TQString &targetDir, bool entitiesOnly)
{
bool fineTune = false;
TQString fileName = TQString::null;
if (!KIO::NetAccess::download(m_dtdURL, fileName, 0))
{
KMessageBox::error(0, i18n("<qt>Cannot download the DTD from <b>%1</b>.</qt>").arg( m_dtdURL.prettyURL(0, KURL::StripFileProtocol)));
return false;
}
DTD::dtd_ptr = xmlParseDTD(NULL, xmlCharStrndup(fileName.utf8(), fileName.utf8().length()));
if( DTD::dtd_ptr == NULL )
{
TQString errorStr = i18n("Unknown");
#ifndef LIBXML_2_5
xmlErrorPtr errorPtr = xmlGetLastError();
if (errorPtr != NULL)
{
TQString s = TQString::fromLatin1(errorPtr->message);
if (!s.isEmpty())
errorStr = s;
s = TQString::fromLatin1(errorPtr->str1);
if (!s.isEmpty())
errorStr += "<br>" + s;
s = TQString::fromLatin1(errorPtr->str2);
if (!s.isEmpty())
errorStr += "<br>" + s;
s = TQString::fromLatin1(errorPtr->str2);
if (!s.isEmpty())
errorStr += "<br>" + s;
errorStr += TQString("(%1, %2)").arg(errorPtr->line).arg(errorPtr->int2);
xmlResetError(errorPtr);
}
#endif
KMessageBox::error(0, i18n("<qt>Error while parsing the DTD.<br>The error message is:<br><i>%1</i></qt>").arg(errorStr));
return false;
}
if (targetDir.isEmpty())
{
KDialogBase dlg(0L, 0L, true, i18n("DTD - > DTEP Conversion"), KDialogBase::Ok | KDialogBase::Cancel);
DTEPCreationDlg w(&dlg);
dlg.setMainWidget(&w);
TQString name = TQString((const char*)DTD::dtd_ptr->name);
if (name == "none")
name = TQFileInfo(m_dtdURL.fileName()).baseName();
w.dtdName->setText(name);
w.nickName->setText(name);
w.directory->setText(TQFileInfo(m_dtdURL.fileName()).baseName());
w.doctype->setText(TQString((const char*)DTD::dtd_ptr->ExternalID));
w.dtdURL->setText(TQString((const char*)DTD::dtd_ptr->SystemID));
if (!dlg.exec())
return false;
m_name = w.dtdName->text();
m_nickName = w.nickName->text();
m_doctype = w.doctype->text();
m_doctype.replace(TQRegExp("<!doctype", false), "");
m_doctype = m_doctype.left(m_doctype.findRev(">"));
m_dtdURLLine = w.dtdURL->text();
m_defaultExtension = w.defaultExtension->text();
m_caseSensitive = w.caseSensitive->isChecked();
DTD::dirName = m_dtepDir + "/" + w.directory->text();
fineTune = w.fineTune->isChecked();
} else
DTD::dirName = targetDir;
KURL u;
u.setPath(DTD::dirName);
if (!QExtFileInfo::createDir(u, 0L)) {
QuantaCommon::dirCreationError(0L, u);
return false;
}
DTD::dirName.append("/");
if (DTD::dtd_ptr->entities)
{
TQFile file( DTD::dirName + "entities.tag" );
if ( file.open( IO_WriteOnly ) )
{
DTD::entityStream.setDevice(&file);
DTD::entityStream.setEncoding(TQTextStream::UnicodeUTF8);
DTD::entityStream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << endl;
DTD::entityStream << "<!DOCTYPE TAGS>" << endl
<< "<TAGS>" << endl;
xmlHashScan((xmlEntitiesTablePtr)DTD::dtd_ptr->entities, (xmlHashScanner)saveEntity, 0);
DTD::entityStream << "</TAGS>" << endl;
file.close();
} else
{
KMessageBox::error(0L, i18n("<qt>Cannot create the <br><b>%1</b> file.<br>Check that you have write permission in the parent folder.</qt>")
.arg(file.name()));
return false;
}
}
if (!entitiesOnly)
{
if (DTD::dtd_ptr->elements)
{
xmlHashScan((xmlElementTablePtr)DTD::dtd_ptr->elements, (xmlHashScanner)saveElement, 0);
} else
{
KMessageBox::error(0, i18n("No elements were found in the DTD."));
return false;
}
}
xmlFreeDtd(DTD::dtd_ptr);
if (!entitiesOnly)
{
writeDescriptionRC();
if (fineTune)
{
KDialogBase editDlg(0L, "edit_dtep", true, i18n("Configure DTEP"), KDialogBase::Ok | KDialogBase::Cancel);
DTEPEditDlg dtepDlg(DTD::dirName + "description.rc", &editDlg);
editDlg.setMainWidget(&dtepDlg);
if (editDlg.exec())
{
dtepDlg.saveResult();
}
}
}
return true;
}
void DTDParser::writeDescriptionRC()
{
KConfig config(DTD::dirName + "description.rc");
config.setGroup("General");
config.writeEntry("Name", m_name);
config.writeEntry("NickName", m_nickName);
config.writeEntry("DoctypeString", m_doctype);
config.writeEntry("URL", m_dtdURLLine);
config.writeEntry("DefaultExtension", m_defaultExtension);
config.writeEntry("Family", "1");
config.writeEntry("CaseSensitive", m_caseSensitive);
// config.setGroup("Parsing rules");
// config.writeEntry("SpecialAreas","<!-- -->,<?xml ?>,<!DOCTYPE >");
// config.writeEntry("SpecialAreaNames","comment,XML PI,DTD");
config.sync();
}
void saveElement(xmlElementPtr elem, xmlBufferPtr buf)
{
Q_UNUSED(buf);
if (elem)
{
TQString elemName = TQString((const char*)elem->name);
TQFile file( DTD::dirName + elemName + ".tag" );
if ( file.open( IO_WriteOnly ) )
{
TQTextStream stream( &file );
stream.setEncoding(TQTextStream::UnicodeUTF8);
stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << endl;
stream << "<!DOCTYPE TAGS>" << endl
<< "<TAGS>" << endl
<< "<tag name=\"" << elemName << "\">" << endl << endl;
xmlElementPtr el_ptr; /* Pointer to an element description */
xmlAttributePtr at_ptr;
el_ptr = xmlGetDtdElementDesc(DTD::dtd_ptr, elem->name);
AttributeList attributes;
attributes.setAutoDelete(true);
if (el_ptr)
{
at_ptr = el_ptr->attributes;
while (at_ptr) {
Attribute *attr = new Attribute;
attr->name = TQString((const char*)at_ptr->name);
switch (at_ptr->def) {
case 1: {attr->status = "optional"; break;} //NONE
case 2: {attr->status = "required"; break;} //REQUIRED
case 3: {attr->status = "implied"; break;} //IMPLIED
case 4: {attr->status = "fixed"; break;} //FIXED
}
attr->defaultValue = TQString((const char*)at_ptr->defaultValue);
xmlEnumerationPtr enum_ptr;
enum_ptr = at_ptr->tree;
while (enum_ptr) {
attr->values += TQString((const char*)enum_ptr->name);
enum_ptr = enum_ptr->next;
}
TQString attrtype;
switch (at_ptr->atype) {
case 9: {attrtype = "list"; break;}
default: {attrtype = "input"; break;} //TODO handle the rest of types
}
attr->type = attrtype;
attributes.append(attr);
at_ptr = at_ptr->nexth;
}
if (!attributes.isEmpty())
stream << QuantaCommon::xmlFromAttributes(&attributes);
const xmlChar *list_ptr[MAX_CHILD_ELEMENTS];
int childNum = 0;
childNum = xmlValidGetPotentialChildren(el_ptr->content, list_ptr,
&childNum, MAX_CHILD_ELEMENTS);
if (childNum > 0)
{
stream << "<children>" << endl;
for( int i = 0; i < childNum; i++ )
{
stream << " <child name=\"" << TQString((const char*)list_ptr[i]) << "\"";
xmlElementPtr child_ptr = xmlGetDtdElementDesc(DTD::dtd_ptr, list_ptr[i]);
if (child_ptr && child_ptr->content && child_ptr->content->ocur)
{
//if (child_ptr->content->ocur == XML_ELEMENT_CONTENT_PLUS)
//{
// stream << " usage=\"required\"";
// }
TQString ocur;
switch (child_ptr->content->ocur)
{
case 1: {ocur = "once"; break;}
case 2: {ocur = "opt"; break;}
case 3: {ocur = "mult"; break;}
case 4: {ocur = "plus"; break;}
}
stream << " usage=\"" << ocur << "\"";
TQString name = TQString((const char*)child_ptr->content->name);
if (name == "#PCDATA")
name == "#text";
stream << " name2=\"" << name << "\"";
}
stream << " />" << endl;
}
stream << "</children>" << endl;
stream << endl;
}
/*
xmlElementContentPtr content_ptr = el_ptr->content;
if (content_ptr)
{
stream << "<children>" << endl;
while (content_ptr)
{
if (!TQString((const char*)content_ptr->name).isEmpty())
{
stream << " <child name=\"" << TQString((const char*)content_ptr->name) << "\"";
TQString ocur;
switch (content_ptr->ocur)
{
case 1: {ocur = "once"; break;}
case 2: {ocur = "opt"; break;}
case 3: {ocur = "mult"; break;}
case 4: {ocur = "plus"; break;}
}
stream << " usage=\"" << ocur << "\"";
stream << " />" << endl;
}
if (content_ptr->c1)
content_ptr = content_ptr->c1;
else if (content_ptr->c2)
content_ptr = content_ptr->c2;
else
{
if (content_ptr == el_ptr->content)
break;
if (content_ptr->parent)
{
if (content_ptr == content_ptr->parent->c1)
content_ptr->c1 = 0L;
else
content_ptr->c2 = 0L;
}
content_ptr = content_ptr->parent;
}
}
stream << "</children>" << endl;
} */
}
stream << "</tag>" << endl
<< "</TAGS>" << endl;
file.close();
}
}
}
void saveEntity(xmlEntityPtr entity, xmlBufferPtr buf)
{
Q_UNUSED(buf);
if (entity)
{
TQString name = TQString((const char*)entity->name);
DTD::entityStream << "<tag name=\"" << name << "\" type=\"entity\" />" << endl << endl;
}
}
TQString DTDParser::dirName()
{
return DTD::dirName;
}
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