151 lines
3.5 KiB
JavaScript
151 lines
3.5 KiB
JavaScript
/*!
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* is-glob <https://github.com/jonschlinkert/is-glob>
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*
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* Copyright (c) 2014-2017, Jon Schlinkert.
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* Released under the MIT License.
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*/
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var isExtglob = require('is-extglob');
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var chars = { '{': '}', '(': ')', '[': ']'};
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var strictCheck = function(str) {
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if (str[0] === '!') {
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return true;
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}
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var index = 0;
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var pipeIndex = -2;
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var closeSquareIndex = -2;
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var closeCurlyIndex = -2;
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var closeParenIndex = -2;
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var backSlashIndex = -2;
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while (index < str.length) {
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if (str[index] === '*') {
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return true;
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}
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if (str[index + 1] === '?' && /[\].+)]/.test(str[index])) {
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return true;
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}
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if (closeSquareIndex !== -1 && str[index] === '[' && str[index + 1] !== ']') {
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if (closeSquareIndex < index) {
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closeSquareIndex = str.indexOf(']', index);
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}
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if (closeSquareIndex > index) {
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if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {
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return true;
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}
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backSlashIndex = str.indexOf('\\', index);
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if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {
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return true;
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}
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}
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}
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if (closeCurlyIndex !== -1 && str[index] === '{' && str[index + 1] !== '}') {
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closeCurlyIndex = str.indexOf('}', index);
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if (closeCurlyIndex > index) {
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backSlashIndex = str.indexOf('\\', index);
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if (backSlashIndex === -1 || backSlashIndex > closeCurlyIndex) {
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return true;
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}
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}
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}
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if (closeParenIndex !== -1 && str[index] === '(' && str[index + 1] === '?' && /[:!=]/.test(str[index + 2]) && str[index + 3] !== ')') {
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closeParenIndex = str.indexOf(')', index);
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if (closeParenIndex > index) {
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backSlashIndex = str.indexOf('\\', index);
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if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {
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return true;
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}
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}
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}
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if (pipeIndex !== -1 && str[index] === '(' && str[index + 1] !== '|') {
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if (pipeIndex < index) {
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pipeIndex = str.indexOf('|', index);
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}
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if (pipeIndex !== -1 && str[pipeIndex + 1] !== ')') {
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closeParenIndex = str.indexOf(')', pipeIndex);
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if (closeParenIndex > pipeIndex) {
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backSlashIndex = str.indexOf('\\', pipeIndex);
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if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {
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return true;
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}
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}
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}
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}
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if (str[index] === '\\') {
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var open = str[index + 1];
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index += 2;
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var close = chars[open];
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if (close) {
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var n = str.indexOf(close, index);
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if (n !== -1) {
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index = n + 1;
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}
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}
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if (str[index] === '!') {
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return true;
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}
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} else {
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index++;
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}
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}
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return false;
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};
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var relaxedCheck = function(str) {
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if (str[0] === '!') {
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return true;
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}
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var index = 0;
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while (index < str.length) {
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if (/[*?{}()[\]]/.test(str[index])) {
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return true;
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}
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if (str[index] === '\\') {
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var open = str[index + 1];
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index += 2;
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var close = chars[open];
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if (close) {
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var n = str.indexOf(close, index);
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if (n !== -1) {
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index = n + 1;
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}
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}
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if (str[index] === '!') {
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return true;
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}
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} else {
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index++;
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}
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}
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return false;
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};
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module.exports = function isGlob(str, options) {
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if (typeof str !== 'string' || str === '') {
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return false;
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}
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if (isExtglob(str)) {
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return true;
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}
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var check = strictCheck;
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// optionally relax check
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if (options && options.strict === false) {
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check = relaxedCheck;
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}
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return check(str);
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};
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