-// $Id$
+// SuperTux
+// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
//
-// TuxKart - a fun racing game with go-kart
-// Copyright (C) 2004 Matthias Braun <matze@braunis.de>
-// code in this file based on lispreader from Mark Probst
-//
-// This program 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.
+// This program 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.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-#include <config.h>
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <sstream>
#include <stdexcept>
-#include <fstream>
-#include <cassert>
-#include <iostream>
-
-#include "tinygettext/tinygettext.hpp"
-#include "physfs/physfs_stream.hpp"
-#include "parser.hpp"
-#include "lisp.hpp"
-
-namespace lisp
-{
-
-Parser::Parser(bool translate)
- : lexer(0), dictionary_manager(0), dictionary(0)
+#include <tinygettext/tinygettext.hpp>
+#include <physfs.h>
+
+#include "lisp/lisp.hpp"
+#include "lisp/parser.hpp"
+#include "util/gettext.hpp"
+#include "util/obstackpp.hpp"
+#include "physfs/ifile_stream.hpp"
+#include "physfs/ifile_streambuf.hpp"
+#include "supertux/globals.hpp"
+
+#include "supertux/gameconfig.hpp"
+
+namespace lisp {
+
+Parser::Parser(bool translate) :
+ lexer(0),
+ filename(),
+ dictionary_manager(0),
+ dictionary(0),
+ token(),
+ searchpath(),
+ obst()
{
if(translate) {
- dictionary_manager = new TinyGetText::DictionaryManager();
+ dictionary_manager = new tinygettext::DictionaryManager();
dictionary_manager->set_charset("UTF-8");
+ if (g_config) {
+ if (g_config->locale != "") {
+ dictionary_manager->set_language(tinygettext::Language::from_name(g_config->locale));
+ }
+ else if(g_dictionary_manager && g_dictionary_manager->get_language()) {
+ // Language set to auto-detect?
+ dictionary_manager->set_language(g_dictionary_manager->get_language());
+ }
+ }
}
+
+ obstack_init(&obst);
+ searchpath = PHYSFS_getSearchPath();
}
Parser::~Parser()
{
+ obstack_free(&obst, NULL);
delete lexer;
delete dictionary_manager;
+ PHYSFS_freeList(searchpath);
}
-static std::string dirname(std::string filename)
+static std::string dirname(const std::string& filename)
{
std::string::size_type p = filename.find_last_of('/');
if(p == std::string::npos)
return filename.substr(0, p+1);
}
-Lisp*
-Parser::parse(const std::string& filename)
+const Lisp*
+Parser::parse(const std::string& filename_)
{
- IFileStream in(filename);
+ IFileStreambuf ins(filename_);
+ std::istream in(&ins);
+
if(!in.good()) {
std::stringstream msg;
- msg << "Parser problem: Couldn't open file '" << filename << "'.";
+ msg << "Parser problem: Couldn't open file '" << filename_ << "'.";
throw std::runtime_error(msg.str());
}
if(dictionary_manager) {
- dictionary_manager->add_directory(dirname(filename));
+ std::string rel_dir = dirname (filename_);
+ for(char** i = searchpath; *i != NULL; i++)
+ {
+ std::string abs_dir = std::string (*i) + PHYSFS_getDirSeparator () + rel_dir;
+ dictionary_manager->add_directory (abs_dir);
+ }
dictionary = & (dictionary_manager->get_dictionary());
}
-
- return parse(in);
+
+ return parse(in, filename_);
}
-Lisp*
-Parser::parse(std::istream& stream)
+const Lisp*
+Parser::parse(std::istream& stream, const std::string& sourcename)
{
delete lexer;
lexer = new Lexer(stream);
+ this->filename = sourcename;
token = lexer->getNextToken();
- Lisp* result = new Lisp(Lisp::TYPE_CONS);
+
+ Lisp* result = new(obst) Lisp(Lisp::TYPE_CONS);
result->v.cons.car = read();
result->v.cons.cdr = 0;
-
+
delete lexer;
lexer = 0;
- return result;
+ return result;
+}
+
+void
+Parser::parse_error(const char* msg) const
+{
+ std::stringstream emsg;
+ emsg << "Parse Error at '" << filename << "' line " << lexer->getLineNumber()
+ << ": " << msg;
+ throw std::runtime_error(emsg.str());
}
-Lisp*
+const Lisp*
Parser::read()
{
Lisp* result;
switch(token) {
case Lexer::TOKEN_EOF: {
- std::stringstream msg;
- msg << "Parse Error at line " << lexer->getLineNumber() << ": "
- << "Unexpected EOF.";
- throw std::runtime_error(msg.str());
+ parse_error("Unexpected EOF.");
}
case Lexer::TOKEN_CLOSE_PAREN: {
- std::stringstream msg;
- msg << "Parse Error at line " << lexer->getLineNumber() << ": "
- << "Unexpected ')'.";
- throw std::runtime_error(msg.str());
+ parse_error("Unexpected ')'.");
}
case Lexer::TOKEN_OPEN_PAREN: {
- result = new Lisp(Lisp::TYPE_CONS);
-
+ result = new(obst) Lisp(Lisp::TYPE_CONS);
+
token = lexer->getNextToken();
if(token == Lexer::TOKEN_CLOSE_PAREN) {
result->v.cons.car = 0;
}
if(token == Lexer::TOKEN_SYMBOL &&
- strcmp(lexer->getString(), "_") == 0) {
+ strcmp(lexer->getString(), "_") == 0) {
// evaluate translation function (_ str) in place here
token = lexer->getNextToken();
if(token != Lexer::TOKEN_STRING)
- throw std::runtime_error("Expected string after '(_'");
-
- result = new Lisp(Lisp::TYPE_STRING);
+ parse_error("Expected string after '(_'");
+
+ result = new(obst) Lisp(Lisp::TYPE_STRING);
if(dictionary) {
std::string translation = dictionary->translate(lexer->getString());
- result->v.string = new char[translation.size()+1];
+ result->v.string = new(obst) char[translation.size()+1];
memcpy(result->v.string, translation.c_str(), translation.size()+1);
} else {
- size_t len = strlen(lexer->getString()) + 1;
- result->v.string = new char[len];
+ size_t len = strlen(lexer->getString()) + 1;
+ result->v.string = new(obst) char[len];
memcpy(result->v.string, lexer->getString(), len);
}
token = lexer->getNextToken();
if(token != Lexer::TOKEN_CLOSE_PAREN)
- throw std::runtime_error("Expected ')' after '(_ string'");
+ parse_error("Expected ')' after '(_ string'");
break;
}
cur->v.cons.cdr = 0;
break;
}
- cur->v.cons.cdr = new Lisp(Lisp::TYPE_CONS);
- cur = cur->v.cons.cdr;
+ Lisp *newcur = new(obst) Lisp(Lisp::TYPE_CONS);
+ cur->v.cons.cdr = newcur;
+ cur = newcur;
} while(1);
break;
}
case Lexer::TOKEN_SYMBOL: {
- result = new Lisp(Lisp::TYPE_SYMBOL);
+ result = new(obst) Lisp(Lisp::TYPE_SYMBOL);
size_t len = strlen(lexer->getString()) + 1;
- result->v.string = new char[len];
+ result->v.string = new(obst) char[len];
memcpy(result->v.string, lexer->getString(), len);
break;
}
case Lexer::TOKEN_STRING: {
- result = new Lisp(Lisp::TYPE_STRING);
+ result = new(obst) Lisp(Lisp::TYPE_STRING);
size_t len = strlen(lexer->getString()) + 1;
- result->v.string = new char[len];
+ result->v.string = new(obst) char[len];
memcpy(result->v.string, lexer->getString(), len);
break;
}
case Lexer::TOKEN_INTEGER:
- result = new Lisp(Lisp::TYPE_INTEGER);
- sscanf(lexer->getString(), "%d", &result->v.integer);
+ result = new(obst) Lisp(Lisp::TYPE_INTEGER);
+ result->v.integer = atoi(lexer->getString());
break;
case Lexer::TOKEN_REAL:
- result = new Lisp(Lisp::TYPE_REAL);
- sscanf(lexer->getString(), "%f", &result->v.real);
+ result = new(obst) Lisp(Lisp::TYPE_REAL);
+ result->v.real = strtof(lexer->getString(), NULL);
break;
case Lexer::TOKEN_TRUE:
- result = new Lisp(Lisp::TYPE_BOOLEAN);
+ result = new(obst) Lisp(Lisp::TYPE_BOOLEAN);
result->v.boolean = true;
break;
case Lexer::TOKEN_FALSE:
- result = new Lisp(Lisp::TYPE_BOOLEAN);
+ result = new(obst) Lisp(Lisp::TYPE_BOOLEAN);
result->v.boolean = false;
break;
default:
// this should never happen
+ result = NULL;
assert(false);
}
}
} // end of namespace lisp
+
+/* EOF */
projects / supertux.git / blobdiff