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/********************* */
/** input.cpp
** Original author: dejan
** Major contributors: mdeters, cconway
** Minor contributors (to current version): none
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.
**
** Parser implementation.
**/
#include <stdint.h>
#include "input.h"
#include "parser_exception.h"
#include "parser_options.h"
#include "parser_state.h"
#include "expr/command.h"
#include "expr/expr.h"
#include "parser/cvc/cvc_input.h"
#include "parser/smt/smt_input.h"
#include "util/output.h"
#include "util/Assert.h"
using namespace std;
namespace CVC4 {
namespace parser {
bool Input::done() const {
return d_parserState->done();
}
void Input::disableChecks() {
d_parserState->disableChecks();
}
void Input::enableChecks() {
d_parserState->enableChecks();
}
Command* Input::parseNextCommand() throw (ParserException) {
Debug("parser") << "parseNextCommand()" << std::endl;
Command* cmd = NULL;
if(!done()) {
try {
cmd = doParseCommand();
if(cmd == NULL) {
d_parserState->setDone();
}
} catch(ParserException& e) {
d_parserState->setDone();
throw ParserException(e.toString());
}
}
Debug("parser") << "parseNextCommand() => " << cmd << std::endl;
return cmd;
}
Expr Input::parseNextExpression() throw (ParserException) {
Debug("parser") << "parseNextExpression()" << std::endl;
Expr result;
if(!done()) {
try {
result = doParseExpr();
if(result.isNull())
d_parserState->setDone();
} catch(ParserException& e) {
d_parserState->setDone();
throw ParserException(e.toString());
}
}
Debug("parser") << "parseNextExpression() => " << result << std::endl;
return result;
}
Input::Input(ExprManager* exprManager, const std::string& filename) {
d_parserState = new ParserState(exprManager,filename,this);
}
Input::~Input() {
delete d_parserState;
}
Input* Input::newFileInput(ExprManager* em, InputLanguage lang,
const std::string& filename, bool useMmap) {
Input* input = 0;
switch(lang) {
case LANG_CVC4:
input = new CvcInput(em,filename,useMmap);
break;
case LANG_SMTLIB:
input = new SmtInput(em,filename,useMmap);
break;
default:
Unhandled(lang);
}
return input;
}
Input* Input::newStringInput(ExprManager* em, InputLanguage lang,
const std::string& str, const std::string& name) {
Input* input = 0;
switch(lang) {
case LANG_CVC4: {
input = new CvcInput(em,str,name);
break;
}
case LANG_SMTLIB:
input = new SmtInput(em,str,name);
break;
default:
Unhandled(lang);
}
return input;
}
}/* CVC4::parser namespace */
}/* CVC4 namespace */
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