Mercurial > repos > tabletprog
comparison parser.js @ 229:7435367a932a
Allow newlines between binary operator and the right argument to the operator
author | Michael Pavone <pavone@retrodev.com> |
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date | Thu, 02 Jan 2014 21:02:11 -0800 |
parents | adad61ea2f3a |
children | c9cacb06964a |
comparison
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228:decdf28a8517 | 229:7435367a932a |
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196 var grammar = | 196 var grammar = |
197 'start = ws module:(object / lambda) ws { return module; };' + | 197 'start = ws module:(object / lambda) ws { return module; };' + |
198 'ws = ([ \\t\\n\\r] / "//" [^\\n]* "\\n")*;' + | 198 'ws = ([ \\t\\n\\r] / "//" [^\\n]* "\\n")*;' + |
199 'hws = ([ \\t] / "/*" ([^*] / "*" ! "/")* "*/" )*;' + | 199 'hws = ([ \\t] / "/*" ([^*] / "*" ! "/")* "*/" )*;' + |
200 'expr = e:(funcall / methcall / assignment / opexpr) ws { return e; };' + | 200 'expr = e:(funcall / methcall / assignment / opexpr) ws { return e; };' + |
201 '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; } };'+ | 201 'opexpr = left:compareop pieces:(hws ("&&" / "||") ws 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; } };'+ |
202 '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; } };'+ | 202 'compareop = left:maybecons pieces:(hws ("<=" / ">=" / "<" / ">" / "=" / "!=") ws 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; } };'+ |
203 'maybecons = consop / addsub;' + | 203 'maybecons = consop / addsub;' + |
204 'consop = left:addsub hws "|" hws right:maybecons { return new op(left, "|", right); };'+ | 204 'consop = left:addsub hws "|" ws right:maybecons { return new op(left, "|", right); };'+ |
205 'addsub = left:muldiv pieces:(hws ((("xor"/"and"/"or") ! [a-zA-Z_!?@0-9])/("+"/"-"/".")) 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; } };'+ | 205 'addsub = left:muldiv pieces:(hws ((("xor"/"and"/"or") ! [a-zA-Z_!?@0-9])/("+"/"-"/".")) ws 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; } };'+ |
206 '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; } };'+ | 206 'muldiv = left:primlitsym pieces:(hws ("*"/"/"/"%") ws 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; } };'+ |
207 'primlitsym = hws val:(float / hex / binary / int / string / symbol / object / array / list / lambda / "(" ws expr:expr hws ")" { return expr; }) { return val; };' + | 207 'primlitsym = hws val:(float / hex / binary / int / string / symbol / object / array / list / lambda / "(" ws expr:expr hws ")" { return expr; }) { return val; };' + |
208 '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("")); };' + | 208 '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("")); };' + |
209 'float = digits:[0-9]+ "." decimals:[0-9]+ { return new floatlit(parseFloat(digits.join("") + "." + decimals.join(""))); };' + | 209 'float = digits:[0-9]+ "." decimals:[0-9]+ { return new floatlit(parseFloat(digits.join("") + "." + decimals.join(""))); };' + |
210 'binary = "0b" digits:[01]+ { return new intlit(parseInt(digits.join(""), 2)); };' + | 210 'binary = "0b" digits:[01]+ { return new intlit(parseInt(digits.join(""), 2)); };' + |
211 'hex = "0x" digits:[0-9a-fA-F]+ size:([iu] ("8" / "16" / "32" / "64"))? { var bits = size ? parseInt(size[1], 10) : 0; return new intlit(parseInt(digits.join(""), 16), bits, size[0] == "u"); };' + | 211 'hex = "0x" digits:[0-9a-fA-F]+ size:([iu] ("8" / "16" / "32" / "64"))? { var bits = size ? parseInt(size[1], 10) : 0; return new intlit(parseInt(digits.join(""), 16), bits, size[0] == "u"); };' + |