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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* transactionparser.cc
*
* Fri Aug 31 09:30:06 CEST 2007
* Copyright 2007 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of Pracro.
*
* Pracro 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; either version 2 of the License, or
* (at your option) any later version.
*
* Pracro 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.
*
* You should have received a copy of the GNU General Public License
* along with Pracro; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "transactionparser.h"
#include <stdio.h>
#include <string.h>
#include <expat.h>
#include <string>
#include <map>
TransactionParser::TransactionParser(Transaction *transaction)
{
this->transaction = transaction;
done = false;
totalbytes = 0;
}
TransactionParser::~TransactionParser()
{
}
void TransactionParser::startTag(std::string name, std::map< std::string, std::string> attributes)
{
if(name == "pracro") {
transaction->user = attributes["user"];
transaction->cpr = attributes["cpr"];
transaction->version = attributes["version"];
}
if(name == "request") {
Request r;
r.course = attributes["course"];
r.macro = attributes["macro"];
transaction->requests.push_back(r);
}
if(name == "commit") {
Commit c;
c.macro = attributes["macro"];
c.version = attributes["version"];
transaction->commits.push_back(c);
}
if(name == "field") {
transaction->commits.back().fields[attributes["name"]] = attributes["value"];
}
}
void TransactionParser::endTag(std::string name)
{
if(name == "pracro") done = true;
}
int TransactionParser::readData(char *data, size_t size)
{
printf("readData is not uasble with transaction parser!.\nUse parse(std::string) instead.\n");
return 0;
}
bool TransactionParser::parse(std::string data)
{
bufferbytes = data.length();
totalbytes += bufferbytes;
if(! XML_Parse(p, (char*)data.c_str(), data.size(), false) ) {
if(XML_GetErrorCode(p) == XML_ERROR_JUNK_AFTER_DOC_ELEMENT) return true;
parseError((char*)data.c_str(), data.size(), XML_ErrorString(XML_GetErrorCode(p)), (int)XML_GetCurrentLineNumber(p));
return false;
}
if(done) {
if(! XML_Parse(p, (char*)data.c_str(), 0, true) ) {
if(XML_GetErrorCode(p) == XML_ERROR_JUNK_AFTER_DOC_ELEMENT) return true;
parseError((char*)data.c_str(), 0, XML_ErrorString(XML_GetErrorCode(p)), (int)XML_GetCurrentLineNumber(p));
return false;
}
}
printf("Got END_OF_TEMPLATE at %ld\n", XML_GetCurrentByteIndex(p));
return done;
}
void TransactionParser::parseError(char *buf, size_t len, std::string error, int lineno)
{
fprintf(stderr, "TransactionParser error at line %d: %s\n", lineno, error.c_str());
fprintf(stderr, "\tBuffer %u bytes: [", len);
if(fwrite(buf, len, 1, stderr) != len) {}
fprintf(stderr, "]\n");
fflush(stderr);
}
unsigned int TransactionParser::usedBytes()
{
return bufferbytes + (XML_GetCurrentByteIndex(p) - totalbytes);
}
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