mirror of
https://github.com/worldforge/cyphesis
synced 2026-08-13 12:26:04 -04:00
330 lines
10 KiB
C++
330 lines
10 KiB
C++
// Cyphesis Online RPG Server and AI Engine
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// Copyright (C) 2004 Alistair Riddoch
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software Foundation,
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// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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// $Id$
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/// \page cyconvertrules_index
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///
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/// \section Introduction
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///
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/// cyconvertrules is a non-interactive commandline tool to convert rules files
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/// to the current format. For information on the usage, please see the unix
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/// manual page. The manual page is generated from docbook sources, so can
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/// also be converted into other formats.
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#include "common/globals.h"
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#include <Atlas/Message/DecoderBase.h>
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#include <Atlas/Message/Element.h>
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#include <Atlas/Codecs/XML.h>
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#include <string>
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#include <fstream>
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#include <iostream>
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#include <cstring>
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using Atlas::Message::Element;
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using Atlas::Message::MapType;
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using Atlas::Message::ListType;
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/// Class to read old cyphesis rules on standard input, and output in new
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/// standard format.
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class FileConverter : public Atlas::Message::DecoderBase {
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private:
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/// Input file
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std::fstream m_file;
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/// Atlas codec for decoding input
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Atlas::Codecs::XML m_codec;
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/// Counter for rules read from input
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int m_count;
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/// Counter to keep track of indenting the output
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int m_indent;
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virtual void messageArrived(const MapType &);
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public:
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FileConverter(const std::string & filename) :
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m_file(filename.c_str(), std::ios::in),
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m_codec(m_file, *this), m_count(0), m_indent(0)
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{
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}
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/// Write the atlas header to standard out
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void openOutput() {
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std::cout << "<atlas>" << std::endl;
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m_indent = 4;
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}
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/// Write the atlas tail to standard out
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void closeOutput() {
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m_indent = 0;
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std::cout << "</atlas>" << std::endl;
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}
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/// Read input file to atlas codec.
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void read() {
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while (!m_file.eof()) {
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m_codec.poll();
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}
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}
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/// Report how many class we converted
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void report() {
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std::cerr << m_count << " classes read and converted."
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<< std::endl << std::flush;
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}
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/// Indicate if the input file has been opened successfully
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bool isOpen() {
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return m_file.is_open();
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}
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/// Write the contents of this element recursively to standard out
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void outputValue(const Element &);
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/// Write the contents of this atlas list recursively to standard out
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void output(const ListType &);
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/// Write the contents of this atlas map recursively to standard out
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void output(const MapType &);
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/// Return a character string corresponding to this atlas element type
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const char * typeToStr(Element::Type t) const;
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};
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void FileConverter::messageArrived(const MapType & omap)
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{
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// We have read a map from the file. Old format rules files contained
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// one map, which contained all the rules as maps within the top
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// level map. Iterate over them, and convert into new format;
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MapType::const_iterator Iend = omap.end();
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for (MapType::const_iterator I = omap.begin(); I != Iend; ++I) {
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MapType newObject;
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// The id of the new rule is the key of this rule in the old map
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newObject["id"] = I->first;
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const MapType & ent = I->second.asMap();
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// Old format parent attribute was a single string. This is replaced
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// in the new format by the more conventional atlas list of strings.
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MapType::const_iterator J = ent.find("parent");
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MapType::const_iterator Jend = ent.end();
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if (J == Jend || !J->second.isString()) {
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std::cerr << "Rule \"" << I->first << "\" has no parent."
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<< std::endl << std::flush;
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continue;
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}
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newObject["parents"] = ListType(1, J->second.asString());
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// Default attribute values, which straightforward values in the old
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// format, are converted to more complex structures defining
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// atlas attribute inheritance, server side visibility and default
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// value
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J = ent.find("attributes");
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if (J != Jend) {
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if (!J->second.isMap()) {
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std::cerr << "Rule \"" << I->first
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<< "\" has attributes which are not a map."
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<< std::endl << std::flush;
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continue;
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}
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newObject["attributes"] = MapType();
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MapType & newAttrs = newObject["attributes"].Map();
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const MapType & attributes = J->second.Map();
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MapType::const_iterator aend = attributes.end();
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for(J = attributes.begin(); J != aend; ++J) {
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MapType & attr = (newAttrs[J->first] = MapType()).Map();
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attr["default"] = J->second;
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attr["visibility"] = "public";
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}
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}
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// The script attribute of the rule is converted unchanged, largely
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// because additional requirements have not yet been identified.
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J = ent.find("script");
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if (J != Jend) {
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if (!J->second.isMap()) {
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std::cerr << "Rule \"" << I->first
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<< "\" has script which are not a map."
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<< std::endl << std::flush;
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continue;
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}
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newObject["script"] = J->second;
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}
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// The mind attribute of the rule is converted unchanged, largely
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// because additional requirements have not yet been identified.
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J = ent.find("mind");
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if (J != Jend) {
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if (!J->second.isMap()) {
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std::cerr << "Rule \"" << I->first
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<< "\" has mind which are not a map."
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<< std::endl << std::flush;
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continue;
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}
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newObject["mind"] = J->second;
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}
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// The playable attribute of the rule is converted unchanged
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// Perhaps this should in time become an internal attribute?
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J = ent.find("playable");
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if (J != Jend) {
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if (!J->second.isInt()) {
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std::cerr << "Rule \"" << I->first
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<< "\" has playable which are not an int."
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<< std::endl << std::flush;
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continue;
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}
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newObject["playable"] = J->second;
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}
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// Output the newly converted rule, and continue.
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std::cout << " <map>" << std::endl;
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output(newObject);
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std::cout << " </map>" << std::endl << std::endl;
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++m_count;
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}
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}
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const char * FileConverter::typeToStr(Element::Type t) const
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{
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switch (t) {
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case Element::TYPE_INT:
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return "int";
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case Element::TYPE_FLOAT:
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return "float";
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case Element::TYPE_STRING:
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return "string";
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case Element::TYPE_MAP:
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return "map";
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case Element::TYPE_LIST:
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return "list";
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case Element::TYPE_NONE:
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default:
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return "NONE";
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};
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}
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void FileConverter::outputValue(const Element & e)
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{
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switch (e.getType()) {
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case Element::TYPE_INT:
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std::cout << e.Int();
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break;
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case Element::TYPE_FLOAT:
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std::cout << e.Float();
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break;
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case Element::TYPE_STRING:
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std::cout << e.String();
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break;
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case Element::TYPE_MAP:
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std::cout << std::endl;
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m_indent += 2;
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output(e.Map());
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m_indent -= 2;
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for(int i = 0; i < m_indent; ++i) {
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std::cout << " ";
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}
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break;
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case Element::TYPE_LIST:
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std::cout << std::endl;
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m_indent += 2;
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output(e.List());
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m_indent -= 2;
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for(int i = 0; i < m_indent; ++i) {
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std::cout << " ";
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}
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break;
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case Element::TYPE_NONE:
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default:
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std::cout << e.asInt();
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break;
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};
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}
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void FileConverter::output(const MapType & o)
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{
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MapType::const_iterator Iend = o.end();
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for(MapType::const_iterator I = o.begin(); I != Iend; ++I) {
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for(int i = 0; i < m_indent; ++i) {
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std::cout << " ";
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}
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const char * type = typeToStr(I->second.getType());
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std::cout << "<" << type << " name=\""
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<< I->first << "\">";
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outputValue(I->second);
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std::cout << "</" << type << ">";
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std::cout << std::endl;
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}
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}
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void FileConverter::output(const ListType & o)
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{
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ListType::const_iterator Iend = o.end();
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for(ListType::const_iterator I = o.begin(); I != Iend; ++I) {
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for(int i = 0; i < m_indent; ++i) {
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std::cout << " ";
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}
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const char * type = typeToStr(I->getType());
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std::cout << "<" << type << ">";
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outputValue(*I);
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std::cout << "</" << type << ">";
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std::cout << std::endl;
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}
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}
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static void usage(char * prgname, std::ostream & stream = std::cerr)
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{
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stream << "usage: " << prgname << " <old rule file>"
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<< std::endl << std::flush;
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return;
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}
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int main(int argc, char ** argv)
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{
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// We require the user to specify the input file
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if (argc != 2) {
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usage(argv[0]);
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return 1;
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}
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if (argv[1][0] == '-') {
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if (strcmp(argv[1], "--version") == 0) {
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reportVersion(argv[0]);
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return 0;
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}
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if (strcmp(argv[1], "--help") == 0) {
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usage(argv[0], std::cout);
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return 0;
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}
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usage(argv[0]);
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return 1;
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}
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// Attempt to open input
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FileConverter f(argv[1]);
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if (!f.isOpen()) {
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std::cerr << "ERROR: Unable to open file " << argv[1]
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<< std::endl << std::flush;
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return 1;
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}
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// Output header elements
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f.openOutput();
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// Read input file, which will be converted on the fly and copied
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// to standard out.
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f.read();
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// Output tail elements
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f.closeOutput();
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// Report how many rules converted to stderr
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f.report();
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}
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