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Diffstat (limited to 'node_modules/braces/index.js')
-rw-r--r-- | node_modules/braces/index.js | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/node_modules/braces/index.js b/node_modules/braces/index.js new file mode 100644 index 0000000..0eee0f5 --- /dev/null +++ b/node_modules/braces/index.js @@ -0,0 +1,170 @@ +'use strict'; + +const stringify = require('./lib/stringify'); +const compile = require('./lib/compile'); +const expand = require('./lib/expand'); +const parse = require('./lib/parse'); + +/** + * Expand the given pattern or create a regex-compatible string. + * + * ```js + * const braces = require('braces'); + * console.log(braces('{a,b,c}', { compile: true })); //=> ['(a|b|c)'] + * console.log(braces('{a,b,c}')); //=> ['a', 'b', 'c'] + * ``` + * @param {String} `str` + * @param {Object} `options` + * @return {String} + * @api public + */ + +const braces = (input, options = {}) => { + let output = []; + + if (Array.isArray(input)) { + for (let pattern of input) { + let result = braces.create(pattern, options); + if (Array.isArray(result)) { + output.push(...result); + } else { + output.push(result); + } + } + } else { + output = [].concat(braces.create(input, options)); + } + + if (options && options.expand === true && options.nodupes === true) { + output = [...new Set(output)]; + } + return output; +}; + +/** + * Parse the given `str` with the given `options`. + * + * ```js + * // braces.parse(pattern, [, options]); + * const ast = braces.parse('a/{b,c}/d'); + * console.log(ast); + * ``` + * @param {String} pattern Brace pattern to parse + * @param {Object} options + * @return {Object} Returns an AST + * @api public + */ + +braces.parse = (input, options = {}) => parse(input, options); + +/** + * Creates a braces string from an AST, or an AST node. + * + * ```js + * const braces = require('braces'); + * let ast = braces.parse('foo/{a,b}/bar'); + * console.log(stringify(ast.nodes[2])); //=> '{a,b}' + * ``` + * @param {String} `input` Brace pattern or AST. + * @param {Object} `options` + * @return {Array} Returns an array of expanded values. + * @api public + */ + +braces.stringify = (input, options = {}) => { + if (typeof input === 'string') { + return stringify(braces.parse(input, options), options); + } + return stringify(input, options); +}; + +/** + * Compiles a brace pattern into a regex-compatible, optimized string. + * This method is called by the main [braces](#braces) function by default. + * + * ```js + * const braces = require('braces'); + * console.log(braces.compile('a/{b,c}/d')); + * //=> ['a/(b|c)/d'] + * ``` + * @param {String} `input` Brace pattern or AST. + * @param {Object} `options` + * @return {Array} Returns an array of expanded values. + * @api public + */ + +braces.compile = (input, options = {}) => { + if (typeof input === 'string') { + input = braces.parse(input, options); + } + return compile(input, options); +}; + +/** + * Expands a brace pattern into an array. This method is called by the + * main [braces](#braces) function when `options.expand` is true. Before + * using this method it's recommended that you read the [performance notes](#performance)) + * and advantages of using [.compile](#compile) instead. + * + * ```js + * const braces = require('braces'); + * console.log(braces.expand('a/{b,c}/d')); + * //=> ['a/b/d', 'a/c/d']; + * ``` + * @param {String} `pattern` Brace pattern + * @param {Object} `options` + * @return {Array} Returns an array of expanded values. + * @api public + */ + +braces.expand = (input, options = {}) => { + if (typeof input === 'string') { + input = braces.parse(input, options); + } + + let result = expand(input, options); + + // filter out empty strings if specified + if (options.noempty === true) { + result = result.filter(Boolean); + } + + // filter out duplicates if specified + if (options.nodupes === true) { + result = [...new Set(result)]; + } + + return result; +}; + +/** + * Processes a brace pattern and returns either an expanded array + * (if `options.expand` is true), a highly optimized regex-compatible string. + * This method is called by the main [braces](#braces) function. + * + * ```js + * const braces = require('braces'); + * console.log(braces.create('user-{200..300}/project-{a,b,c}-{1..10}')) + * //=> 'user-(20[0-9]|2[1-9][0-9]|300)/project-(a|b|c)-([1-9]|10)' + * ``` + * @param {String} `pattern` Brace pattern + * @param {Object} `options` + * @return {Array} Returns an array of expanded values. + * @api public + */ + +braces.create = (input, options = {}) => { + if (input === '' || input.length < 3) { + return [input]; + } + + return options.expand !== true + ? braces.compile(input, options) + : braces.expand(input, options); +}; + +/** + * Expose "braces" + */ + +module.exports = braces; |