pavone@5: 
pavone@5: function op(left, op, right)
pavone@5: {
pavone@5: 	this.left = left;
pavone@5: 	this.op = op;
pavone@5: 	this.right = right;
pavone@5: }
pavone@5: 
pavone@19: function symbol(name, symbols)
pavone@5: {
pavone@5: 	this.name = name;
pavone@19: 	this.symbols = symbols;
pavone@5: }
pavone@6: symbol.prototype.cleanName = function() {
pavone@6: 	return this.name[0] == ':' ? this.name.substr(1) : this.name;
pavone@6: }
pavone@5: 
pavone@135: function intlit(val, bits)
pavone@5: {
pavone@135: 	if (!bits) {
pavone@135: 		bits = 32;
pavone@135: 	}
pavone@135: 	this.bits = bits;
pavone@5: 	this.val = val;
pavone@5: }
pavone@5: 
pavone@5: function floatlit(val)
pavone@5: {
pavone@5: 	this.val = val;
pavone@5: }
pavone@5: 
pavone@5: function strlit(val)
pavone@5: {
pavone@5: 	this.val = val;
pavone@5: }
pavone@5: 
pavone@25: function listlit(val)
pavone@25: {
pavone@25: 	this.val = val;
pavone@25: }
pavone@25: 
pavone@38: function arraylit(val)
pavone@38: {
pavone@38: 	this.val = val;
pavone@38: }
pavone@38: 
pavone@5: function funcall(name, args)
pavone@5: {
pavone@5: 	this.name = name;
pavone@5: 	this.args = args;
pavone@5: 	this.receiver = null;
pavone@5: }
pavone@5: 
pavone@5: function object(messages)
pavone@5: {
pavone@5: 	this.messages = messages;
pavone@83: 	this.name = null;
pavone@5: }
pavone@5: 
pavone@5: function lambda(args, expressions)
pavone@5: {
pavone@42: 	this.args = args ? args : [];
pavone@5: 	this.expressions = expressions;
pavone@5: }
pavone@5: 
pavone@5: function assignment(sym, expr)
pavone@5: {
pavone@5: 	this.symbol = sym;
pavone@5: 	this.expression = expr;
pavone@5: }
pavone@1: 
pavone@25: function isLambda(node)
pavone@25: {
pavone@25: 	return node instanceof lambda;
pavone@25: }
pavone@25: 
pavone@122: var grammar =
pavone@1: 'start = ws module:(object / lambda) ws { return module; };' +
pavone@4: 'ws = ([ \\t\\n\\r] / "//" [^\\n]* "\\n")*;' +
pavone@4: 'hws = ([ \\t] / "/*" ([^*] / "*" ! "/")* "*/" )*;' +
pavone@2: 'expr = e:(funcall / methcall / opexpr) ws { return e; };' +
pavone@83: 'opexpr = left:compareop pieces:(hws ("&&" / "||") hws compareop)* { if (pieces.length) { var cur = new op(left, pieces[0][1], pieces[0][3]); for (var i = 1; i < pieces.length; i++) { cur = new op(cur, pieces[i][1], pieces[i][3]); } return cur; } else { return left; } };'+
pavone@83: 'compareop = left:addsub pieces:(hws ("<=" / ">=" / "<" / ">" / "=" / "!=") hws addsub)* { if (pieces.length) { var cur = new op(left, pieces[0][1], pieces[0][3]); for (var i = 1; i < pieces.length; i++) { cur = new op(cur, pieces[i][1], pieces[i][3]); } return cur; } else { return left; } };'+
pavone@134: 'addsub = left:muldiv pieces:(hws ("+"/"-"/"xor"/"and"/"or"/".") hws muldiv)* { if (pieces.length) { var cur = new op(left, pieces[0][1], pieces[0][3]); for (var i = 1; i < pieces.length; i++) { cur = new op(cur, pieces[i][1], pieces[i][3]); } return cur; } else { return left; } };'+
bill@67: 'muldiv = left:primlitsym pieces:(hws ("*"/"/"/"%") hws primlitsym)* { if (pieces.length) { var cur = new op(left, pieces[0][1], pieces[0][3]); for (var i = 1; i < pieces.length; i++) { cur = new op(cur, pieces[i][1], pieces[i][3]); } return cur; } else { return left; } };'+
pavone@53: 'primlitsym = hws val:(float / hex / binary / int / string / symbol / object / array / list / lambda / "(" ws expr:expr hws ")" { return expr; }) { return val; };' +
pavone@104: 'symbol = chars:[a-zA-Z_!?@]+ trailing:(":"? [a-zA-Z_!?@0-9])* ! ":" { for (var i = 0; i < trailing.length; i++) { trailing[i] = trailing[i].join(""); } return new symbol(chars.join("") + trailing.join("")); };' +
pavone@5: 'float = digits:[0-9]+ "." decimals:[0-9]+ { return new floatlit(parseFloat(digits.join("") + "." + decimals.join(""))); };' +
pavone@49: 'binary = "0b" digits:[01]+ { return new intlit(parseInt(digits.join(""), 2)); };' +
pavone@138: 'hex = "0x" digits:[0-9a-fA-F]+ size:("i" ("8" / "16" / "32" / "64"))? { var bits = size ? parseInt(size[1], 10) : 0; return new intlit(parseInt(digits.join(""), 16), bits); };' +
pavone@138: 'int = sign:"-"? digits:[0-9]+ size:("i" ("8" / "16" / "32" / "64"))? { var bits = size ? parseInt(size[1], 10) : 0; return new intlit(parseInt(sign + digits.join(""), 10), bits); };' +
pavone@44: 'string = "\\"" text:(strpart/escape)* "\\"" { return new strlit(text.join("")); };' +
pavone@122: 'strpart = text:[^\\"\\\\]+ { return text.join(""); };' +
pavone@56: 'escape = "\\\\" char:[nt\\"r\\\\] { if (char == "n") { return "\\n"; } if (char == "r") { return "\\r"; } return char; };' +
pavone@83: 'object = "#{" ws messages:(assignment / funexpr)* "}" { return new object(messages); };' +
pavone@38: 'array = "#[" ws els:opexpr* "]" { return new arraylit(els); };' +
pavone@25: 'list = "[" ws els:opexpr* "]" { return new listlit(els); };' +
pavone@122: 'opsym = name:("&&" / "||" / "<=" / ">=" / "<" / ">" / "=" / "!=" / "+" / "-" / "." / "*" / "/" / "%") { return new symbol(name); };' +
pavone@122: 'assignment = ws sym:(symbol / opsym) hws "<-" expr:expr ws { return new assignment(sym, expr); }' +
pavone@5: 'lambda = args:((& ":") argname+  )? "{" ws exprs:(assignment / expr)* "}" { return new lambda(args[1], exprs); };' +
pavone@5: 'argname = init:":"? chars:[a-zA-Z_!?@]+ trailing:[a-zA-Z_!?@0-9]* hws { return new symbol(init + chars.join("") + trailing.join("")); };' +
pavone@83: 'funexpr = f: funcall ws { return f; };' +
pavone@104: 'funcall = hws parts: funcallpart+ { var fun = ""; var args = []; for (var i = 0; i < parts.length; i++) { fun += parts[i].name; args = args.concat(parts[i].args); } return new funcall(fun, args); };' +
pavone@2: 'funcallpart = fun:funpart args:opexpr* hws { return { name: fun, args: args}; };' +
pavone@2: 'funpart = chars:[a-zA-Z_!?@]+ middle:[a-zA-Z_!?@0-9]* ":" & [ \\t\\n\\r] { return chars.join("") + middle.join("") + ":"; };' +
pavone@2: 'methcall = receiver:opexpr hws info:methcallrest { info.receiver = receiver; return info; };' +
pavone@2: 'methcallrest = funcall / unarymeth;' +
pavone@6: 'unarymeth = name:symbol { return new funcall(name.name, []); };';
pavone@0: var parser = PEG.buildParser(grammar);
pavone@0: 
pavone@0: