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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
* templateheaderparser.cc
*
* Thu Jul 30 08:53:26 CEST 2009
* Copyright 2009 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 "templateheaderparser.h"
#include <stdio.h>
// For assert
#include <assert.h>
// For open and friends
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
// For vprintf and friends
#include <stdarg.h>
#include <errno.h>
#include <string.h>
#include "debug.h"
#include "configuration.h"
#include "exception.h"
void TemplateHeaderParser::error(const char* fmt, ...)
{
PRACRO_ERR_LOG(templateparser, "Error in TemplateHeaderParser: ");
{
va_list argp;
va_start(argp, fmt);
PRACRO_ERR_LOG_VA(templateparser, fmt, argp);
va_end(argp);
fprintf(stderr, "\n");
}
{
char *p;
va_list argp;
va_start(argp, fmt);
if(vasprintf(&p, fmt, argp) != -1) {
throw Exception("Error in TemplateHeaderParser: " + std::string(p));
free(p);
}
va_end(argp);
}
}
TemplateHeaderParser::TemplateHeaderParser(std::string templatefile)
{
t = NULL;
file = templatefile;
PRACRO_DEBUG(templateparser, "Using template file: %s\n", templatefile.c_str());
fd = open(templatefile.c_str(), O_RDONLY);
if(fd == -1) error("Could not open file %s", templatefile.c_str());
}
TemplateHeaderParser::~TemplateHeaderParser()
{
if(fd != -1) close(fd);
if(t) delete t;
}
void TemplateHeaderParser::startTag(std::string name, std::map< std::string, std::string> attributes)
{
// Create template and enable parsing of queries, maps and window
if(name == "course") {
assert(!t); // A Template has already been allocated, cannot create template!
t = new Template();
t->attributes = attributes;
}
}
int TemplateHeaderParser::readData(char *data, size_t size)
{
if(t) return 0; // If t is allocated, it means that we have parsed the template
// tag, and can dismiss the rest of the document.
if(fd == -1) {
PRACRO_ERR_LOG(templateparser, "Invalid file descriptor.\n");
return 0;
}
ssize_t r = read(fd, data, size);
if(r == -1) {
PRACRO_ERR_LOG(templateparser, "Could not read...%s\n", strerror(errno));
return 0;
}
return r;
}
void TemplateHeaderParser::parseError(char *buf, size_t len, std::string error, int lineno)
{
if(t) return; // Ignore "unclosed token" errors when the template tag has been parsed.
PRACRO_ERR_LOG(templateparser, "TemplateHeaderParser[%s] error at line %d: %s\n", file.c_str(), lineno, error.c_str());
PRACRO_ERR_LOG(templateparser, "\tBuffer %u bytes: [", len);
if(fwrite(buf, len, 1, stderr) != len) {}
PRACRO_ERR_LOG(templateparser, "]\n");
char *slineno;
if(asprintf(&slineno, " at line %d\n", lineno) != -1) {
throw Exception(error + slineno);
free(slineno);
}
}
Template *TemplateHeaderParser::getTemplate()
{
return t;
}
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