Merged nGenEx and Parser into Stars45

1 files changed, 196 insertions, 0 deletions

diff --git a/Stars45/Term.h b/Stars45/Term.h
new file mode 100644
index 0000000..a0317dd
--- /dev/null
+++ b/Stars45/Term.h
@@ -0,0 +1,196 @@
+/*  Starshatter OpenSource Distribution
+     Copyright (c) 1997-2004, Destroyer Studios LLC.
+     All Rights Reserved.
+
+     Redistribution and use in source and binary forms, with or without
+     modification, are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice,
+        this list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation
+        and/or other materials provided with the distribution.
+     * Neither the name "Destroyer Studios" nor the names of its contributors
+        may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+     ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+     LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.
+
+     SUBSYSTEM:    Parser
+     FILE:         term.h
+     AUTHOR:       John DiCamillo
+
+
+     OVERVIEW
+     ========
+     Declaration of the Abstract Syntax Tree classes
+*/
+
+
+#ifndef TERM_H
+#define TERM_H
+
+#include "Text.h"
+#include "List.h"
+
+// +-------------------------------------------------------------------+
+
+class Term;
+class TermBool;
+class TermNumber;
+class TermText;
+class TermArray;
+class TermDef;
+class TermStruct;
+
+// +-------------------------------------------------------------------+
+
+class Term
+{
+public:
+    static const char* TYPENAME() { return "Term"; }
+
+     Term()            { }
+    virtual ~Term()   { }
+
+    virtual int operator==(const Term& rhs) const { return 0; }
+
+     virtual void print(int level=10) { }
+
+     // conversion tests
+     virtual Term*              touch()     { return this; }
+     virtual TermBool*          isBool()    { return 0; }
+     virtual TermNumber*        isNumber()  { return 0; }
+     virtual TermText*          isText()    { return 0; }
+     virtual TermArray*         isArray()   { return 0; }
+     virtual TermDef*           isDef()     { return 0; }
+     virtual TermStruct*        isStruct()  { return 0; }
+};
+
+Term* error(char*, char* = 0);
+
+// +-------------------------------------------------------------------+
+
+typedef List<Term>      TermList;
+typedef ListIter<Term>  TermListIter;
+
+// +-------------------------------------------------------------------+
+
+class TermBool : public Term
+{
+public:
+    static const char* TYPENAME() { return "TermBool"; }
+
+    TermBool(bool v) : val(v) { }
+    
+    virtual void      print(int level=10);
+     virtual TermBool* isBool()      { return this; }
+              bool      value() const { return val;  }
+
+private:
+    bool val;
+};
+
+// +-------------------------------------------------------------------+
+
+class TermNumber : public Term
+{
+public:
+    static const char* TYPENAME() { return "TermNumber"; }
+
+    TermNumber(double v) : val(v) { }
+    
+    virtual void         print(int level=10);
+     virtual TermNumber*  isNumber()     { return this; }
+              double       value() const  { return val;  }
+
+private:
+    double val;
+};
+
+// +-------------------------------------------------------------------+
+
+class TermText : public Term
+{
+public:
+    static const char* TYPENAME() { return "TermText"; }
+
+    TermText(const Text& v) : val(v)   { }
+    
+    virtual void      print(int level=10);
+     virtual TermText* isText()       { return this; }
+              Text      value() const  { return val;  }
+
+private:
+    Text val;
+};
+
+// +-------------------------------------------------------------------+
+
+class TermArray : public Term
+{
+public:
+    static const char* TYPENAME() { return "TermArray"; }
+
+    TermArray(TermList* elist);
+    virtual ~TermArray();
+    
+    virtual void         print(int level=10);
+    virtual TermArray*   isArray()   { return this;  }
+              TermList*    elements()  { return elems; }
+
+private:
+    TermList*   elems;
+};
+
+// +-------------------------------------------------------------------+
+
+class TermStruct : public Term
+{
+public:
+    static const char* TYPENAME() { return "TermStruct"; }
+
+    TermStruct(TermList* elist);
+    virtual ~TermStruct();
+
+    virtual void         print(int level=10);
+
+    virtual TermStruct*  isStruct()  { return this; }
+              TermList*    elements()  { return elems; }
+
+private:
+    TermList*   elems;
+};
+
+// +-------------------------------------------------------------------+
+
+class TermDef : public Term
+{
+public:
+    static const char* TYPENAME() { return "TermDef"; }
+
+    TermDef(TermText* n, Term* v) : mname(n), mval(v) { }
+    virtual ~TermDef();
+
+    virtual void         print(int level=10);
+    virtual TermDef*     isDef()     { return this; }
+    
+    virtual TermText*    name()      { return mname; }
+    virtual Term*        term()      { return mval;  }
+
+private:
+    TermText*   mname;
+    Term*       mval;
+};
+
+#endif