114 lines
2.9 KiB
JavaScript
114 lines
2.9 KiB
JavaScript
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'use strict';
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var isRegexp = require('is-regexp');
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var isPlainObj = require('is-plain-obj');
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module.exports = function (val, opts, pad) {
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var seen = [];
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return (function stringify(val, opts, pad) {
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opts = opts || {};
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opts.indent = opts.indent || '\t';
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pad = pad || '';
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var tokens;
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if(opts.inlineCharacterLimit == void 0) {
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tokens = {
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newLine: '\n',
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newLineOrSpace: '\n',
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pad: pad,
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indent: pad + opts.indent
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};
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} else {
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tokens = {
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newLine: '@@__STRINGIFY_OBJECT_NEW_LINE__@@',
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newLineOrSpace: '@@__STRINGIFY_OBJECT_NEW_LINE_OR_SPACE__@@',
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pad: '@@__STRINGIFY_OBJECT_PAD__@@',
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indent: '@@__STRINGIFY_OBJECT_INDENT__@@'
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}
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}
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var expandWhiteSpace = function(string) {
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if (opts.inlineCharacterLimit == void 0) { return string; }
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var oneLined = string.
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replace(new RegExp(tokens.newLine, 'g'), '').
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replace(new RegExp(tokens.newLineOrSpace, 'g'), ' ').
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replace(new RegExp(tokens.pad + '|' + tokens.indent, 'g'), '');
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if(oneLined.length <= opts.inlineCharacterLimit) {
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return oneLined;
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} else {
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return string.
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replace(new RegExp(tokens.newLine + '|' + tokens.newLineOrSpace, 'g'), '\n').
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replace(new RegExp(tokens.pad, 'g'), pad).
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replace(new RegExp(tokens.indent, 'g'), pad + opts.indent);
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}
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};
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if (seen.indexOf(val) !== -1) {
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return '"[Circular]"';
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}
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if (val === null ||
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val === undefined ||
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typeof val === 'number' ||
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typeof val === 'boolean' ||
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typeof val === 'function' ||
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isRegexp(val)) {
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return String(val);
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}
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if (val instanceof Date) {
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return 'new Date(\'' + val.toISOString() + '\')';
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}
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if (Array.isArray(val)) {
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if (val.length === 0) {
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return '[]';
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}
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seen.push(val);
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var ret = '[' + tokens.newLine + val.map(function (el, i) {
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var eol = val.length - 1 === i ? tokens.newLine : ',' + tokens.newLineOrSpace;
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return tokens.indent + stringify(el, opts, pad + opts.indent) + eol;
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}).join('') + tokens.pad + ']';
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seen.pop(val);
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return expandWhiteSpace(ret);
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}
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if (isPlainObj(val)) {
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var objKeys = Object.keys(val);
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if (objKeys.length === 0) {
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return '{}';
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}
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seen.push(val);
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var ret = '{' + tokens.newLine + objKeys.map(function (el, i) {
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if (opts.filter && !opts.filter(val, el)) {
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return '';
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}
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var eol = objKeys.length - 1 === i ? tokens.newLine : ',' + tokens.newLineOrSpace;
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var key = /^[a-z$_][a-z$_0-9]*$/i.test(el) ? el : stringify(el, opts);
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return tokens.indent + key + ': ' + stringify(val[el], opts, pad + opts.indent) + eol;
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}).join('') + tokens.pad + '}';
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seen.pop(val);
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return expandWhiteSpace(ret);
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}
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val = String(val).replace(/[\r\n]/g, function (x) {
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return x === '\n' ? '\\n' : '\\r';
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});
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if (opts.singleQuotes === false) {
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return '"' + val.replace(/"/g, '\\\"') + '"';
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}
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return '\'' + val.replace(/'/g, '\\\'') + '\'';
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})(val, opts, pad);
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};
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