81 lines
2.3 KiB
JavaScript
81 lines
2.3 KiB
JavaScript
var Generator = require("jison").Generator;
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var system = require("system");
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var fs = require("file");
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exports.grammar = {
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"comment": "ECMA-262 5th Edition, 15.12.1 The JSON Grammar.",
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"author": "Zach Carter",
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"lex": {
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"macros": {
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"digit": "[0-9]",
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"esc": "\\\\",
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"int": "-?(?:[0-9]|[1-9][0-9]+)",
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"exp": "(?:[eE][-+]?[0-9]+)",
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"frac": "(?:\\.[0-9]+)"
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},
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"rules": [
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["\\s+", "/* skip whitespace */"],
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["{int}{frac}?{exp}?\\b", "return 'NUMBER';"],
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["\"(?:{esc}[\"bfnrt/{esc}]|{esc}u[a-fA-F0-9]{4}|[^\"{esc}])*\"", "yytext = yytext.substr(1,yyleng-2); return 'STRING';"],
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["\\{", "return '{'"],
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["\\}", "return '}'"],
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["\\[", "return '['"],
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["\\]", "return ']'"],
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[",", "return ','"],
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[":", "return ':'"],
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["true\\b", "return 'TRUE'"],
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["false\\b", "return 'FALSE'"],
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["null\\b", "return 'NULL'"]
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]
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},
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"tokens": "STRING NUMBER { } [ ] , : TRUE FALSE NULL",
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"start": "JSONText",
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"bnf": {
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"JSONString": [ "STRING" ],
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"JSONNumber": [ "NUMBER" ],
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"JSONBooleanLiteral": [ "TRUE", "FALSE" ],
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"JSONText": [ "JSONValue" ],
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"JSONValue": [ "JSONNullLiteral",
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"JSONBooleanLiteral",
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"JSONString",
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"JSONNumber",
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"JSONObject",
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"JSONArray" ],
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"JSONObject": [ "{ }",
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"{ JSONMemberList }" ],
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"JSONMember": [ "JSONString : JSONValue" ],
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"JSONMemberList": [ "JSONMember",
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"JSONMemberList , JSONMember" ],
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"JSONArray": [ "[ ]",
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"[ JSONElementList ]" ],
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"JSONElementList": [ "JSONValue",
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"JSONElementList , JSONValue" ]
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}
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};
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var options = {type: "slr", moduleType: "commonjs", moduleName: "jsoncheck"};
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exports.main = function main (args) {
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var cwd = fs.path(fs.cwd()),
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code = new Generator(exports.grammar, options).generate(),
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stream = cwd.join(options.moduleName+".js").open("w");
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stream.print(code).close();
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};
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if (require.main === module)
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exports.main(system.args);
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