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/* This file is part of Strigi Desktop Search
*
* Copyright (C) 2007 George Goldberg <grundleborg@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "cpplineanalyzer.h"
#include <strigi/strigiconfig.h>
#include <strigi/analysisresult.h>
#include <strigi/fieldtypes.h>
#include <cstring>
using namespace std;
using namespace Strigi;
// AnalyzerFactory
void
CppLineAnalyzerFactory::registerFields(FieldRegister& reg) {
includeField = reg.registerField(
"http://www.semanticdesktop.org/ontologies/2007/01/19/nie#depends");
classField = reg.registerField(
"http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#definesClass");
codeLinesField = reg.registerField(
"http://strigi.sf.net/ontologies/0.9#codeLineCount");
commentLinesField = reg.registerField(
"http://strigi.sf.net/ontologies/0.9#commentLineCount");
programmingLanguageField = reg.registerField(
"http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#programmingLanguage");
// Include count not required. Include list length is easy to obtain.
// includesField = reg.registerField();
typeField = reg.typeField;
}
// Analyzer
void
CppLineAnalyzer::startAnalysis(AnalysisResult* i) {
analysisResult = i;
ready = false;
codeLines = 0;
commentLines = 0;
includes = 0;
inComment = false;
// only use this analyzer if the file has been deterined to be c/c++
// this is not accurate at all but better than what we had before
ready = i->mimeType() != "text/x-csrc"
&& i->mimeType() != "text/x-chdr"
&& i->mimeType() != "text/x-c++src"
&& i->mimeType() != "text/x-c++hdr";
}
void
CppLineAnalyzer::handleLine(const char* data, uint32_t length) {
bool shortComment = false;
int macroStart = -1;
bool endOfComment = false;
bool onlyWhitespace = true;
for (unsigned int i=0;i<length;i++ ) {
if (data[i]=='/') {
if (i<(length-1) && data[i+1]=='*') inComment = true;
if (i<(length-1) && data[i+1]=='/') shortComment = true;
if (i>0 && data[i-1]=='*') endOfComment = true;
}
if (onlyWhitespace && data[i] == '#' && macroStart == -1) {
macroStart = i;
}
onlyWhitespace = onlyWhitespace && isspace(data[i]);
}
if (!inComment){
codeLines++;
if (shortComment) commentLines++;
if (macroStart != -1
&& strncmp("include", data + macroStart + 1, 7) == 0) {
//TODO Add code here for counting strings.
//Look for included files.
string include1(data + macroStart + 8, length - macroStart - 8);
size_t pos2 = include1.find("<",0);
size_t pos3 = include1.find(">",0);
if((pos2 != string::npos) && (pos3 != string::npos)){
// We cannot use nie:depends here since it has a range of nie:DataObject and the includes cannot be represented as data objects
// includes will only be resolved at compile time.
//analysisResult->addValue(factory->includeField, include1.substr(1+pos2,((pos3-1)-pos2)));
includes++;
}
size_t pos4 = include1.find("\"",0);
size_t pos5 = include1.find("\"", pos4+1);
if((pos4 != string::npos) && (pos5 != string::npos)){
// FIXME: we need a useful new property or new DataObject type to describe a C header
// which does not have an absolute path.
//analysisResult->addValue(factory->includeField, include1.substr(1+pos4,((pos5-1)-pos4)));
includes++;
}
}
}
else
commentLines++;
if (endOfComment) inComment=false;
}
void
CppLineAnalyzer::endAnalysis(bool complete) {
// we assume all cpp files must have includes
if (includes && complete) {
//FIXME: either get rid of this or replace with NIE equivalent
//analysisResult->addValue(factory->codeLinesField, (int32_t)codeLines);
//analysisResult->addValue(factory->commentLinesField, (int32_t)commentLines);
analysisResult->addValue(factory->programmingLanguageField, "C++");
analysisResult->addValue(factory->typeField,
"http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#SourceCode");
// analysisResult->addValue(factory->includesField, includes);
}
}
bool
CppLineAnalyzer::isReadyWithStream() {
return ready;
}
//Factory
class Factory : public AnalyzerFactoryFactory {
public:
list<StreamLineAnalyzerFactory*>
streamLineAnalyzerFactories() const {
list<StreamLineAnalyzerFactory*> af;
af.push_back(new CppLineAnalyzerFactory());
return af;
}
};
STRIGI_ANALYZER_FACTORY(Factory)
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