From 2909f50d008920568f0e50da760b266388ccc124 Mon Sep 17 00:00:00 2001
From: Mike Buland <mike@xagasoft.com>
Date: Mon, 22 Apr 2013 13:05:22 -0600
Subject: There is now a parser & calculator interface.

---
 src/token.cpp | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 src/token.cpp

(limited to 'src/token.cpp')

diff --git a/src/token.cpp b/src/token.cpp
new file mode 100644
index 0000000..d7fbe88
--- /dev/null
+++ b/src/token.cpp
@@ -0,0 +1,70 @@
+#include "token.h"
+
+#include "number.h"
+#include <bu/formatter.h>
+#include <bu/string.h>
+
+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 tString:
+        case tCommand:
+            delete sVal;
+            break;
+
+        default:
+            break;
+    }
+}
+
+Bu::Formatter &operator<<( Bu::Formatter &f, Token::Type eType )
+{
+    switch( eType )
+    {
+        case Token::tNumber:        return f << "num";
+        case Token::tString:        return f << "str";
+        case Token::tCommand:       return f << "cmd";
+        case Token::tPlus:          return f << "+";
+        case Token::tMinus:         return f << "-";
+        case Token::tDivide:        return f << "/";
+        case Token::tMultiply:      return f << "*";
+        case Token::tOpenParen:     return f << "(";
+        case Token::tCloseParen:    return f << ")";
+        case Token::tEndOfLine:     return f << "eol";
+        case Token::tEndOfInput:    return f << "eoi";
+
+        default:                    return f << "???";
+    }
+}
+
-- 
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