package/index.js0000644000175000017500000000013011624174174014337 0ustar substacksubstackexports.parse = require('./lib/parse'); exports.stringify = require('./lib/stringify'); package/package.json0000644000175000017500000000121311624174174015163 0ustar substacksubstack{ "name" : "jsonify", "version" : "0.0.0", "description" : "JSON without touching any globals", "main" : "index.js", "directories" : { "lib" : ".", "test" : "test" }, "devDependencies" : { "tap" : "0.0.x", "garbage" : "0.0.x" }, "scripts" : { "test" : "tap test" }, "repository" : { "type" : "git", "url" : "http://github.com/substack/jsonify.git" }, "keywords" : [ "json", "browser" ], "author" : { "name" : "Douglas Crockford", "url" : "http://crockford.com/" }, "license" : "Public Domain" } package/README.markdown0000644000175000017500000000171411624174174015404 0ustar substacksubstackjsonify ======= This module provides Douglas Crockford's JSON implementation without modifying any globals. `stringify` and `parse` are merely exported without respect to whether or not a global `JSON` object exists. methods ======= var json = require('jsonify'); json.parse(source, reviver) --------------------------- Return a new javascript object from a parse of the `source` string. If a `reviver` function is specified, walk the structure passing each name/value pair to `reviver.call(parent, key, value)` to transform the `value` before parsing it. json.stringify(value, replacer, space) -------------------------------------- Return a string representation for `value`. If `replacer` is specified, walk the structure passing each name/value pair to `replacer.call(parent, key, value)` to transform the `value` before stringifying it. If `space` is a number, indent the result by that many spaces. If `space` is a string, use `space` as the indentation. package/test/stringify.js0000644000175000017500000000047211624174174016236 0ustar substacksubstackvar test = require('tap').test; var json = require('../'); var garbage = require('garbage'); test('stringify', function (t) { for (var i = 0; i < 50; i++) { var obj = garbage(50); t.equal( json.stringify(obj), JSON.stringify(obj) ); } t.end(); }); package/test/parse.js0000644000175000017500000000050511624174174015327 0ustar substacksubstackvar test = require('tap').test; var json = require('../'); var garbage = require('garbage'); test('parse', function (t) { for (var i = 0; i < 50; i++) { var s = JSON.stringify(garbage(50)); t.deepEqual( json.parse(s), JSON.parse(s) ); } t.end(); }); package/lib/stringify.js0000644000175000017500000001256511624174174016033 0ustar substacksubstackvar cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, gap, indent, meta = { // table of character substitutions '\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"' : '\\"', '\\': '\\\\' }, rep; function quote(string) { // If the string contains no control characters, no quote characters, and no // backslash characters, then we can safely slap some quotes around it. // Otherwise we must also replace the offending characters with safe escape // sequences. escapable.lastIndex = 0; return escapable.test(string) ? '"' + string.replace(escapable, function (a) { var c = meta[a]; return typeof c === 'string' ? c : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); }) + '"' : '"' + string + '"'; } function str(key, holder) { // Produce a string from holder[key]. var i, // The loop counter. k, // The member key. v, // The member value. length, mind = gap, partial, value = holder[key]; // If the value has a toJSON method, call it to obtain a replacement value. if (value && typeof value === 'object' && typeof value.toJSON === 'function') { value = value.toJSON(key); } // If we were called with a replacer function, then call the replacer to // obtain a replacement value. if (typeof rep === 'function') { value = rep.call(holder, key, value); } // What happens next depends on the value's type. switch (typeof value) { case 'string': return quote(value); case 'number': // JSON numbers must be finite. Encode non-finite numbers as null. return isFinite(value) ? String(value) : 'null'; case 'boolean': case 'null': // If the value is a boolean or null, convert it to a string. Note: // typeof null does not produce 'null'. The case is included here in // the remote chance that this gets fixed someday. return String(value); case 'object': if (!value) return 'null'; gap += indent; partial = []; // Array.isArray if (Object.prototype.toString.apply(value) === '[object Array]') { length = value.length; for (i = 0; i < length; i += 1) { partial[i] = str(i, value) || 'null'; } // Join all of the elements together, separated with commas, and // wrap them in brackets. v = partial.length === 0 ? '[]' : gap ? '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' : '[' + partial.join(',') + ']'; gap = mind; return v; } // If the replacer is an array, use it to select the members to be // stringified. if (rep && typeof rep === 'object') { length = rep.length; for (i = 0; i < length; i += 1) { k = rep[i]; if (typeof k === 'string') { v = str(k, value); if (v) { partial.push(quote(k) + (gap ? ': ' : ':') + v); } } } } else { // Otherwise, iterate through all of the keys in the object. for (k in value) { if (Object.prototype.hasOwnProperty.call(value, k)) { v = str(k, value); if (v) { partial.push(quote(k) + (gap ? ': ' : ':') + v); } } } } // Join all of the member texts together, separated with commas, // and wrap them in braces. v = partial.length === 0 ? '{}' : gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' : '{' + partial.join(',') + '}'; gap = mind; return v; } } module.exports = function (value, replacer, space) { var i; gap = ''; indent = ''; // If the space parameter is a number, make an indent string containing that // many spaces. if (typeof space === 'number') { for (i = 0; i < space; i += 1) { indent += ' '; } } // If the space parameter is a string, it will be used as the indent string. else if (typeof space === 'string') { indent = space; } // If there is a replacer, it must be a function or an array. // Otherwise, throw an error. rep = replacer; if (replacer && typeof replacer !== 'function' && (typeof replacer !== 'object' || typeof replacer.length !== 'number')) { throw new Error('JSON.stringify'); } // Make a fake root object containing our value under the key of ''. // Return the result of stringifying the value. return str('', {'': value}); }; package/lib/parse.js0000644000175000017500000001527511624174174015130 0ustar substacksubstackvar at, // The index of the current character ch, // The current character escapee = { '"': '"', '\\': '\\', '/': '/', b: '\b', f: '\f', n: '\n', r: '\r', t: '\t' }, text, error = function (m) { // Call error when something is wrong. throw { name: 'SyntaxError', message: m, at: at, text: text }; }, next = function (c) { // If a c parameter is provided, verify that it matches the current character. if (c && c !== ch) { error("Expected '" + c + "' instead of '" + ch + "'"); } // Get the next character. When there are no more characters, // return the empty string. ch = text.charAt(at); at += 1; return ch; }, number = function () { // Parse a number value. var number, string = ''; if (ch === '-') { string = '-'; next('-'); } while (ch >= '0' && ch <= '9') { string += ch; next(); } if (ch === '.') { string += '.'; while (next() && ch >= '0' && ch <= '9') { string += ch; } } if (ch === 'e' || ch === 'E') { string += ch; next(); if (ch === '-' || ch === '+') { string += ch; next(); } while (ch >= '0' && ch <= '9') { string += ch; next(); } } number = +string; if (!isFinite(number)) { error("Bad number"); } else { return number; } }, string = function () { // Parse a string value. var hex, i, string = '', uffff; // When parsing for string values, we must look for " and \ characters. if (ch === '"') { while (next()) { if (ch === '"') { next(); return string; } else if (ch === '\\') { next(); if (ch === 'u') { uffff = 0; for (i = 0; i < 4; i += 1) { hex = parseInt(next(), 16); if (!isFinite(hex)) { break; } uffff = uffff * 16 + hex; } string += String.fromCharCode(uffff); } else if (typeof escapee[ch] === 'string') { string += escapee[ch]; } else { break; } } else { string += ch; } } } error("Bad string"); }, white = function () { // Skip whitespace. while (ch && ch <= ' ') { next(); } }, word = function () { // true, false, or null. switch (ch) { case 't': next('t'); next('r'); next('u'); next('e'); return true; case 'f': next('f'); next('a'); next('l'); next('s'); next('e'); return false; case 'n': next('n'); next('u'); next('l'); next('l'); return null; } error("Unexpected '" + ch + "'"); }, value, // Place holder for the value function. array = function () { // Parse an array value. var array = []; if (ch === '[') { next('['); white(); if (ch === ']') { next(']'); return array; // empty array } while (ch) { array.push(value()); white(); if (ch === ']') { next(']'); return array; } next(','); white(); } } error("Bad array"); }, object = function () { // Parse an object value. var key, object = {}; if (ch === '{') { next('{'); white(); if (ch === '}') { next('}'); return object; // empty object } while (ch) { key = string(); white(); next(':'); if (Object.hasOwnProperty.call(object, key)) { error('Duplicate key "' + key + '"'); } object[key] = value(); white(); if (ch === '}') { next('}'); return object; } next(','); white(); } } error("Bad object"); }; value = function () { // Parse a JSON value. It could be an object, an array, a string, a number, // or a word. white(); switch (ch) { case '{': return object(); case '[': return array(); case '"': return string(); case '-': return number(); default: return ch >= '0' && ch <= '9' ? number() : word(); } }; // Return the json_parse function. It will have access to all of the above // functions and variables. module.exports = function (source, reviver) { var result; text = source; at = 0; ch = ' '; result = value(); white(); if (ch) { error("Syntax error"); } // If there is a reviver function, we recursively walk the new structure, // passing each name/value pair to the reviver function for possible // transformation, starting with a temporary root object that holds the result // in an empty key. If there is not a reviver function, we simply return the // result. return typeof reviver === 'function' ? (function walk(holder, key) { var k, v, value = holder[key]; if (value && typeof value === 'object') { for (k in value) { if (Object.prototype.hasOwnProperty.call(value, k)) { v = walk(value, k); if (v !== undefined) { value[k] = v; } else { delete value[k]; } } } } return reviver.call(holder, key, value); }({'': result}, '')) : result; };