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json-bigint
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json-bigint - npm Package Compare versions
Comparing version 0.1.2 to 0.1.3
383
index.js
@@ -1,383 +0,4 @@ | ||
| var BigNumber = require('bignumber.js'); | ||
| /* | ||
| json_parse.js | ||
| 2012-06-20 | ||
| json_stringify = require('./lib/stringify.js').stringify; | ||
| json_parse = require('./lib/parse.js'); | ||
| Public Domain. | ||
| NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK. | ||
| This file creates a json_parse function. | ||
| During create you can (optionally) specify some behavioural switches | ||
| require('json-bigint')(options) | ||
| The optional options parameter holds switches that drive certain | ||
| aspects of the parsing process: | ||
| * options.strict = true will warn about duplicate-key usage in the json. | ||
| The default (strict = false) will silently ignore those and overwrite | ||
| values for keys that are in duplicate use. | ||
| The resulting function follows this signature: | ||
| json_parse(text, reviver) | ||
| This method parses a JSON text to produce an object or array. | ||
| It can throw a SyntaxError exception. | ||
| The optional reviver parameter is a function that can filter and | ||
| transform the results. It receives each of the keys and values, | ||
| and its return value is used instead of the original value. | ||
| If it returns what it received, then the structure is not modified. | ||
| If it returns undefined then the member is deleted. | ||
| Example: | ||
| // Parse the text. Values that look like ISO date strings will | ||
| // be converted to Date objects. | ||
| myData = json_parse(text, function (key, value) { | ||
| var a; | ||
| if (typeof value === 'string') { | ||
| a = | ||
| /^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value); | ||
| if (a) { | ||
| return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4], | ||
| +a[5], +a[6])); | ||
| } | ||
| } | ||
| return value; | ||
| }); | ||
| This is a reference implementation. You are free to copy, modify, or | ||
| redistribute. | ||
| This code should be minified before deployment. | ||
| See http://javascript.crockford.com/jsmin.html | ||
| USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO | ||
| NOT CONTROL. | ||
| */ | ||
| /*members "", "\"", "\/", "\\", at, b, call, charAt, f, fromCharCode, | ||
| hasOwnProperty, message, n, name, prototype, push, r, t, text | ||
| */ | ||
| var json_parse = function (options) { | ||
| "use strict"; | ||
| // This is a function that can parse a JSON text, producing a JavaScript | ||
| // data structure. It is a simple, recursive descent parser. It does not use | ||
| // eval or regular expressions, so it can be used as a model for implementing | ||
| // a JSON parser in other languages. | ||
| // We are defining the function inside of another function to avoid creating | ||
| // global variables. | ||
| // Default options one can override by passing options to the parse() | ||
| var _options = { | ||
| "strict": false // not being strict means do not generate syntax errors for "duplicate key" | ||
| }; | ||
| // If there are options, then use them to override the default _options | ||
| if (options !== undefined && options !== null) { | ||
| if (options.strict === true) { | ||
| _options.strict = true; | ||
| } | ||
| } | ||
| var 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 { | ||
| //if (number > 9007199254740992 || number < -9007199254740992) | ||
| // Bignumber has stricter check: everything with length > 15 digits disallowed | ||
| if (string.length > 15) | ||
| return new BigNumber(string); | ||
| 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; | ||
| } | ||
| 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 (_options.strict === true && 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. | ||
| return 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; | ||
| }; | ||
| } | ||
| json_stringify = require('./stringify.js').stringify; | ||
| module.exports = function(options) { | ||
@@ -384,0 +5,0 @@ return { |
| { | ||
| "name": "json-bigint", | ||
| "version": "0.1.2", | ||
| "version": "0.1.3", | ||
| "description": "JSON.parse with bigints support", | ||
@@ -5,0 +5,0 @@ "main": "index.js", |
| json-bigint | ||
| =========== | ||
| [](http://travis-ci.org/sidorares/json-bigint) | ||
| [](https://nodei.co/npm/json-bigint/) | ||
| JSON.parse/stringify with bigints support. Based on Douglas Crockford [JSON.js](https://github.com/douglascrockford/JSON-js) package and [bignumber.js](https://github.com/MikeMcl/bignumber.js) library. | ||
@@ -89,4 +92,1 @@ | ||
| [](https://bitdeli.com/free "Bitdeli Badge") | ||
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Improved metrics
- Total package byte prevSize
- increased by0.69%
33546
- Number of package files
- increased by11.11%
10
- Lines of code
- increased by0.6%
676
Worsened metrics
- Number of medium supply chain risk alerts
- increased byInfinity%
1
No dependency changes