Empiezo el compilador

compiler/.gitignore

@@ -0,0 +1,3 @@
+c++-parser.js
+c++.js
+examples

compiler/ast.js

@@ -0,0 +1,118 @@
+
+var ast = ast || {};
+
+/* Model of inheritance */
+
+ast.__inherit__ = (function() {
+   var F = function (typename) {
+      this.typename = typename;
+   };
+   return function (typename, C, P) {
+      F.prototype = P.prototype;
+      C.prototype = new F(typename);
+      C.uber = P.prototype;
+      C.prototype.constructor = C;
+   }
+})();
+
+/* Node type */
+
+ast.Node = function () {};
+
+ast.Node.prototype = {
+   typename: "Node",
+   accept: function (visitor) {
+      var methodName = 'v' + this.typename;
+      if (methodName in visitor) {
+         visitor[methodName].call(visitor, this);
+      } else if ('vNode' in visitor) {
+         visitor['vNode'].call(visitor, this);
+      }
+   },
+};
+
+ast.NodeList = function() {
+   this.children = [];
+}
+
+ast.__inherit__("NodeList", ast.NodeList, ast.Node);
+
+ast.NodeList.prototype.add = function (obj) {
+   this.children.push(obj);
+}
+
+
+/* Construct node types */
+
+function nodeTypeMaker(Base) {
+   return function (typename) {
+      var NewType = function (obj) {
+         for (var prop in obj) {
+            if (obj.hasOwnProperty(prop)) {
+	            this[prop] = obj[prop];
+            }
+         }
+      }
+      ast.__inherit__(typename, NewType, Base);
+      ast[typename] = NewType;
+   }
+}
+
+ast.makeNodeType = nodeTypeMaker(ast.Node);
+
+/* Create Node Types */
+
+
+var types = [
+   "IncludeDirective", 
+	"UsingDirective", 
+	"ForStmt", 
+	"WhileStmt",
+];
+for (var i in types) {
+   ast.makeNodeType(types[i]);
+}
+
+/* Visitors */
+
+ast.reportVisitor = {
+   vNode: function(obj) {
+      console.log("seen a Node!");
+   },
+   vIncludeDirective: function (obj) {
+      console.log("seen an Include!");
+   },
+   vNodeList: function (obj) {
+      console.log("seen a NodeList!");
+      for (var i in obj.children) {
+         obj.children[i].accept(this);
+      }
+   }
+}
+
+ast.nodeCount = function () {
+   this.count = 0;
+}
+
+ast.nodeCount.prototype = {
+   vNode: function(obj) {
+      this.count++;
+   }
+}
+
+/* test... */
+
+var util = require('util');
+
+var i = new ast.IncludeDirective({ name: "iostream" });
+var n = new ast.Node();
+var L = new ast.NodeList();
+L.add(i);
+L.add(n);
+console.log(util.inspect(L, true, 4))
+
+L.accept(ast.reportVisitor);
+
+var nc = new ast.nodeCount();
+i.accept(nc);
+console.log(nc.count);

compiler/c++.pegjs

@@ -0,0 +1,123 @@
+
+start = 
+   __ program:Program __ { return program; }
+
+WhiteSpace = [ \t\f]
+LineTerminator = [\n\r]
+LineTerminatorSeq = "\n" / "\r\n" / "\r"
+SourceCharacter = .
+
+__ =
+   (WhiteSpace / LineTerminatorSeq / Comment)*
+
+_ =
+   (WhiteSpace / MultiLineCommentOneLine / SingleLineComment)*
+
+Literal = [0-9]
+
+MultiLineComment =
+   "/*" (!"*/" SourceCharacter)* "*/"
+
+MultiLineCommentOneLine = 
+   "/*" (!("*/" / LineTerminator) SourceCharacter)* "*/"
+
+SingleLineComment =
+   "//" (!LineTerminator SourceCharacter)*
+
+Comment =
+   MultiLineComment /
+   SingleLineComment
+
+Identifier = 
+   name:([_A-Za-z] [_A-Za-z0-9]*) {
+      return new ast.Identifier(name);
+   }
+
+Type =
+  "int" /
+  "char" /
+  "float"
+
+FormalParameter =
+   type:Type _ name:Identifier {
+      return {
+         type: type,
+         name: name
+      }
+   }
+
+FormalParameterList =
+   head:FormalParameter tail:(__ "," __ FormalParameter)* {
+      var result = [head];
+      for (var i = 0; i < tail.length; i++) {
+         result.push(tail[i][3]);
+      }
+      return result;
+   }
+
+VarDecl =
+   name:Identifier (__ "=" __ value:Literal)? {
+      return {
+         name: name,
+         value: value,
+      }
+   }
+
+VarDeclList =
+   head:VarDecl tail:(__ "," __ VarDecl) {
+      var result = [head];
+      for (var i = 0; i < tail.length; i++) {
+         result.push(tail[i][3]);
+      }
+      return result;
+   }
+
+VarDeclStmt =
+   type:Type __ list:VarDeclList {
+      return new ast.VarDeclStmt(type, list);
+   }
+
+Stmt =
+   VarDeclStmt
+
+StmtList =
+   head:Stmt tail:(__ Stmt)* {
+      var result = [head];
+      for (var i = 0; i < tail.length; i++) {
+         result.push(tail[i][1]);
+      }
+      return result;
+   }
+
+
+FunctionBody =
+   StmtList
+
+FunctionDef =
+   Type _ name:Identifier 
+   "(" __ params:FormalParameterList? __ ")" __
+   "{" __ elements:FunctionBody? __ "}" {
+      return new ast.Function(name, params, elements);
+   }
+
+IncludeDirective "include" =
+  "#include" _ [<"] file:[a-z]* [>"] {
+     console.log("include!");
+     return new ast.Include(file)
+  }
+
+ProgramPart =
+  IncludeDirective /
+  FunctionDef /
+  Comment
+
+Program = 
+   head:ProgramPart tail:(__ ProgramPart)* {
+      var result = [head];
+      for (var i = 0; i < tail.length; i++) {
+         result.push(tail[i][1]);
+      }  
+      return new ast.Program(result);
+   }
+
+

compiler/cc.js

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+#!/usr/bin/env node
+
+var util = require('util');
+var fs = require('fs');
+var cc = require('c++-parser');
+
+fs.readFile('test.cc', 'utf-8', function (err, data) {
+   var tree = cc.parse(data);
+   console.log(util.inspect(tree, true, null));   
+});
+

compiler/gen_parser.sh

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+#!/bin/bash
+pegjs c++.pegjs c++.js
+cat preamble.js c++.js > c++-parser.js

compiler/preamble.js

@@ -0,0 +1,3 @@
+
+var ast = require('ast');
+

compiler/test.cc

@@ -0,0 +1,4 @@
+#include <iostream>
+
+int main() {
+}

index.html

@@ -1,23 +1,25 @@
 <html>
   <head>
-	 <script src="/dnode.js" type="text/javascript"></script>
-	 <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js" type="text/javascript" ></script>
-    <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.11/jquery-ui.min.js" type="text/javascript" ></script>
-	 <script src="/client.js" type="text/javascript"></script>
-	 <script src="/ace.js" type="text/javascript" charset="utf-8"></script>
-	 <script src="/mode-c_cpp.js" type="text/javascript" charset="utf-8"></script>
-
-	 <link href="css/Aristo/jquery-ui-1.8.7.custom.css" type="text/css" rel="stylesheet" />
-	 <link href="css/webcc.css" type="text/css" rel="stylesheet" />
+    <script src="/dnode.js" type="text/javascript"></script>
+    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js" 
+	    type="text/javascript" ></script>
+    <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.11/jquery-ui.min.js" 
+	    type="text/javascript" ></script>
+    <script src="/client.js" type="text/javascript"></script>
+    <script src="/ace.js" type="text/javascript" charset="utf-8"></script>
+    <script src="/mode-c_cpp.js" type="text/javascript" charset="utf-8"></script>
+
+    <link href="css/Aristo/jquery-ui-1.8.7.custom.css" type="text/css" rel="stylesheet" />
+    <link href="css/webcc.css" type="text/css" rel="stylesheet" />
   </head>
   <body>
-	 <div id="barra">
-		<div id="compileButton">Compila</div>
-		<div id="runButton">Executa</div>
-		<div id="settingsButton">Preferències</div>
-	 </div>
-	 <div id="editor" /></div>
-    <div id="errors" /></div>
+    <div id="barra">
+      <div id="compileButton">Compila</div>
+      <div id="runButton">Executa</div>
+      <div id="settingsButton">Preferències</div>
+    </div>
+    <div id="editor" /></div>
+<div id="errors" /></div>
 <script type="text/editor" id="program">
 #include <iostream>
 using namespace std;
@@ -32,5 +34,5 @@
   Indentació <br />
   Tamany de la font <br />
 </div>
-  </body>
+</body>
 </html>