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/******************************************************************************\
* This file is part of packup. *
* *
* packup 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 3 of the License, or *
* (at your option) any later version. *
* *
* packup 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 packup. If not, see <http://www.gnu.org/licenses/>. *
\******************************************************************************/
/*
* File: parser_functions.h
* Author: mikolas
*
* Created on August 10, 2010, 6:12 PM
* Copyright (C) 2011, Mikolas Janota
*/
#ifndef PARSER_FUNCTIONS_H
#define PARSER_FUNCTIONS_H
#ifdef PARS_DBG
#define PDBG(t) t
#else
#define PDBG(t)
#endif
#include <string>
#include <vector>
#include <assert.h>
#include <iostream>
#include <stdio.h>
#include "common_types.hh"
#include "collections.hh"
#include "PackageVersions.hh"
#include "package_version.hh"
using namespace version_operators;
using std::string;
using std::vector;
using std::cout;
using std::cerr;
using std::endl;
using std::exception;
class ReadException : public exception {
public:
ReadException(char* str) : s(str) {};
~ReadException() throw() { delete[] s; }
const char* what() const throw() { return s; }
private:
char* s;
};
class Parser {
public:
virtual ~Parser() {};
/** Processing of a new package started.*/
virtual void start_package() = 0;
/** Processing of a package stopped.*/
virtual void close_package() = 0;
/**The version of currently processed package was read.*/
virtual void end_processed_package_version() = 0;
/** The package universe has been fully read.*/
virtual void close_universe() = 0;
/**The whole input was read.*/
virtual void close_input () = 0;
//Package stanza
virtual void package_provides() = 0;
virtual void package_conflicts() = 0; // A list of conflicting versions was read.
virtual void package_depends() = 0;
virtual void package_recommends() = 0;
virtual void package_keep() = 0;
virtual void package_installed(bool installed_value) = 0;
//Request stanzas
virtual void request_install() = 0;
virtual void request_remove() = 0;
virtual void upgrade() = 0;
void package_versions_list_empty() {read_package_versions_list.clear();}
void package_versions_list_first() {
read_package_versions_list.clear();
read_package_versions_list.push_back(read_package_versions);
}
void package_versions_list_next()
{read_package_versions_list.push_back(read_package_versions);}
void action_package_name(char* cname);
void action_version_operator(Operator op) {read_operator=op;}
Version action_version(char* version_string) {
PDBG(cerr << "Version:" << (version_string) << endl;)
const int r = sscanf(version_string, "%d", &read_version);
if (r < 1) {
static const char* ms = "Invalid version number: ";
char* const message = new char [strlen(version_string)+strlen(ms)+1];
strcpy(message, ms);
strcat(message, version_string);
delete[] version_string;
throw ReadException(message);
}
delete[] version_string;
return read_version;
}
void action_package_versions() {
read_package_versions = PackageVersions(
read_package_name,
read_operator,
read_operator==VERSIONS_NONE? 0 : read_version);
}
void action_feature (){
assert (read_operator==VERSIONS_EQUALS ||read_operator==VERSIONS_NONE);
read_feature = PackageVersion (read_package_name,read_operator==VERSIONS_NONE? 0 : read_version);
};
void action_first_disjunction();
void action_next_disjunction();
void action_first_literal();
void action_next_literal();
void action_CNF_true();
void action_CNF_false();
void action_first_feature() {
read_feature_list.clear ();
read_feature_list.push_back(read_feature);
}
void action_next_feature(){
read_feature_list.push_back(read_feature);
}
void action_empty_feature_list()
{read_feature_list.clear();}
void action_keep_value (KeepValue value){read_keep_value = value;}
protected:
string read_package_name;
Version read_version;
Operator read_operator;
KeepValue read_keep_value;
vector <string> package_names;
vector <string> feature_names;
PackageVersions read_package_versions;
PackageVersion read_feature;
PackageVersionList read_feature_list;
PackageVersionsCNF read_CNF;
VersionsList* read_clause;
VersionsList read_package_versions_list;
Str2Str package_names_set;
};
#endif /* PARSER_FUNCTIONS_H */
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