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#include "token.h"
#include "number.h"
#include <bu/formatter.h>
#include <bu/string.h>
Token::Token() :
eType( tUninitialized ),
sVal( 0 )
{
}
Token::Token( Type eType ) :
eType( eType ),
sVal( 0 )
{
}
Token::Token( Type eType, Bu::String *s ) :
eType( eType ),
sVal( s )
{
}
Token::Token( Type eType, Number *n ) :
eType( eType ),
nVal( n )
{
}
Token::Token( const Token &rSrc ) :
eType( rSrc.eType ),
sVal( rSrc.sVal )
{
Token &rMod = const_cast<Token &>(rSrc);
rMod.sVal = 0;
}
Token::~Token()
{
switch( eType )
{
case tNumber:
delete nVal;
break;
case tVariable:
case tString:
case tCmdExtended:
case tCmdParam:
delete sVal;
break;
default:
break;
}
}
Token &Token::operator=( const Token &rhs )
{
switch( eType )
{
case tNumber:
delete nVal;
break;
case tVariable:
case tString:
case tCmdExtended:
case tCmdParam:
delete sVal;
break;
default:
break;
}
eType = rhs.eType;
sVal = rhs.sVal;
Token &rMod = const_cast<Token &>(rhs);
rMod.sVal = 0;
return *this;
}
Bu::Formatter &operator<<( Bu::Formatter &f, Token::Type eType )
{
switch( eType )
{
case Token::tNumber: return f << "num";
case Token::tVariable: return f << "var";
case Token::tPlus: return f << "+";
case Token::tMinus: return f << "-";
case Token::tDivide: return f << "/";
case Token::tMultiply: return f << "*";
case Token::tModulus: return f << "%";
case Token::tOpenParen: return f << "(";
case Token::tCloseParen: return f << ")";
case Token::tEquals: return f << "=";
case Token::tString: return f << "str";
case Token::tEndOfLine: return f << "eol";
case Token::tEndOfInput: return f << "eoi";
case Token::tNegate: return f << "neg";
case Token::tUninitialized: return f << "<->";
case Token::tComputedValue: return f << "cmp";
case Token::tCmdExit: return f << "cmd (exit)";
case Token::tCmdScale: return f << "cmd (scale)";
case Token::tCmdRadix: return f << "cmd (radix)";
case Token::tCmdExtended: return f << "cmd (ext)";
case Token::tCmdParam: return f << "cpr";
case Token::tCmdEndParams: return f << "cpe";
default: return f << "???";
}
}
Bu::Formatter &operator<<( Bu::Formatter &f, const Token &t )
{
f << t.eType;
if( t.eType == Token::tNumber )
f << "(" << (t.nVal?t.nVal->toString():"<null>") << ")";
else if( t.eType == Token::tString ||
t.eType == Token::tVariable ||
t.eType == Token::tCmdExtended ||
t.eType == Token::tCmdParam )
f << "(" << (t.sVal?*(t.sVal):"<null>") << ")";
return f;
}
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