--- a/parser.js	Fri Aug 09 21:01:11 2013 -0700
+++ b/parser.js	Tue Aug 13 21:58:03 2013 -0700
@@ -80,7 +80,9 @@
 'hws = ([ \\t] / "/*" ([^*] / "*" ! "/")* "*/" )*;' +
 'expr = e:(funcall / methcall / opexpr) ws { return e; };' +
 '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; } };'+
-'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; } };'+
+'compareop = left:maybecons pieces:(hws ("<=" / ">=" / "<" / ">" / "=" / "!=") hws maybecons)* { 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; } };'+
+'maybecons = consop / addsub;' +
+'consop = left:addsub hws "|" hws right:maybecons { return new op(left, "|", right); };'+
 '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; } };'+
 '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; } };'+
 'primlitsym = hws val:(float / hex / binary / int / string / symbol / object / array / list / lambda / "(" ws expr:expr hws ")" { return expr; }) { return val; };' +
@@ -95,7 +97,7 @@
 'object = "#{" ws messages:(assignment / funexpr)* "}" { return new object(messages); };' +
 'array = "#[" ws els:opexpr* "]" { return new arraylit(els); };' +
 'list = "[" ws els:opexpr* "]" { return new listlit(els); };' +
-'opsym = name:("&&" / "||" / "<=" / ">=" / "<" / ">" / "=" / "!=" / "+" / "-" / "." / "*" / "/" / "%") { return new symbol(name); };' +
+'opsym = name:("&&" / "||" / "<=" / ">=" / "<" / ">" / "=" / "!=" / "+" / "-" / "." / "*" / "/" / "%" / "|") { return new symbol(name); };' +
 'assignment = ws sym:(symbol / opsym) hws "<-" expr:expr ws { return new assignment(sym, expr); }' +
 'lambda = args:((& ":") argname+  )? "{" ws exprs:(assignment / expr)* "}" { return new lambda(args[1], exprs); };' +
 'argname = init:":"? chars:[a-zA-Z_!?@]+ trailing:[a-zA-Z_!?@0-9]* hws { return new symbol(init + chars.join("") + trailing.join("")); };' +