1092 lines
27 KiB
JavaScript
1092 lines
27 KiB
JavaScript
'use strict';
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const constants = require('./constants');
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const utils = require('./utils');
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/**
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* Constants
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*/
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const {
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MAX_LENGTH,
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POSIX_REGEX_SOURCE,
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REGEX_NON_SPECIAL_CHARS,
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REGEX_SPECIAL_CHARS_BACKREF,
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REPLACEMENTS
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} = constants;
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/**
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* Helpers
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*/
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const expandRange = (args, options) => {
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if (typeof options.expandRange === 'function') {
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return options.expandRange(...args, options);
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}
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args.sort();
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const value = `[${args.join('-')}]`;
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try {
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/* eslint-disable-next-line no-new */
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new RegExp(value);
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} catch (ex) {
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return args.map(v => utils.escapeRegex(v)).join('..');
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}
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return value;
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};
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/**
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* Create the message for a syntax error
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*/
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const syntaxError = (type, char) => {
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return `Missing ${type}: "${char}" - use "\\\\${char}" to match literal characters`;
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};
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/**
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* Parse the given input string.
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* @param {String} input
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* @param {Object} options
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* @return {Object}
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*/
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const parse = (input, options) => {
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if (typeof input !== 'string') {
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throw new TypeError('Expected a string');
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}
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input = REPLACEMENTS[input] || input;
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const opts = { ...options };
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const max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
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let len = input.length;
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if (len > max) {
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throw new SyntaxError(`Input length: ${len}, exceeds maximum allowed length: ${max}`);
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}
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const bos = { type: 'bos', value: '', output: opts.prepend || '' };
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const tokens = [bos];
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const capture = opts.capture ? '' : '?:';
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const win32 = utils.isWindows(options);
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// create constants based on platform, for windows or posix
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const PLATFORM_CHARS = constants.globChars(win32);
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const EXTGLOB_CHARS = constants.extglobChars(PLATFORM_CHARS);
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const {
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DOT_LITERAL,
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PLUS_LITERAL,
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SLASH_LITERAL,
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ONE_CHAR,
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DOTS_SLASH,
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NO_DOT,
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NO_DOT_SLASH,
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NO_DOTS_SLASH,
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QMARK,
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QMARK_NO_DOT,
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STAR,
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START_ANCHOR
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} = PLATFORM_CHARS;
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const globstar = opts => {
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return `(${capture}(?:(?!${START_ANCHOR}${opts.dot ? DOTS_SLASH : DOT_LITERAL}).)*?)`;
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};
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const nodot = opts.dot ? '' : NO_DOT;
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const qmarkNoDot = opts.dot ? QMARK : QMARK_NO_DOT;
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let star = opts.bash === true ? globstar(opts) : STAR;
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if (opts.capture) {
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star = `(${star})`;
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}
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// minimatch options support
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if (typeof opts.noext === 'boolean') {
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opts.noextglob = opts.noext;
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}
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const state = {
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input,
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index: -1,
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start: 0,
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dot: opts.dot === true,
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consumed: '',
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output: '',
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prefix: '',
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backtrack: false,
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negated: false,
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brackets: 0,
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braces: 0,
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parens: 0,
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quotes: 0,
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globstar: false,
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tokens
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};
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input = utils.removePrefix(input, state);
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len = input.length;
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const extglobs = [];
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const braces = [];
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const stack = [];
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let prev = bos;
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let value;
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/**
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* Tokenizing helpers
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*/
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const eos = () => state.index === len - 1;
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const peek = state.peek = (n = 1) => input[state.index + n];
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const advance = state.advance = () => input[++state.index] || '';
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const remaining = () => input.slice(state.index + 1);
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const consume = (value = '', num = 0) => {
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state.consumed += value;
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state.index += num;
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};
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const append = token => {
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state.output += token.output != null ? token.output : token.value;
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consume(token.value);
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};
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const negate = () => {
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let count = 1;
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while (peek() === '!' && (peek(2) !== '(' || peek(3) === '?')) {
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advance();
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state.start++;
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count++;
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}
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if (count % 2 === 0) {
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return false;
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}
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state.negated = true;
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state.start++;
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return true;
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};
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const increment = type => {
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state[type]++;
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stack.push(type);
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};
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const decrement = type => {
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state[type]--;
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stack.pop();
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};
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/**
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* Push tokens onto the tokens array. This helper speeds up
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* tokenizing by 1) helping us avoid backtracking as much as possible,
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* and 2) helping us avoid creating extra tokens when consecutive
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* characters are plain text. This improves performance and simplifies
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* lookbehinds.
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*/
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const push = tok => {
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if (prev.type === 'globstar') {
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const isBrace = state.braces > 0 && (tok.type === 'comma' || tok.type === 'brace');
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const isExtglob = tok.extglob === true || (extglobs.length && (tok.type === 'pipe' || tok.type === 'paren'));
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if (tok.type !== 'slash' && tok.type !== 'paren' && !isBrace && !isExtglob) {
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state.output = state.output.slice(0, -prev.output.length);
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prev.type = 'star';
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prev.value = '*';
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prev.output = star;
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state.output += prev.output;
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}
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}
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if (extglobs.length && tok.type !== 'paren') {
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extglobs[extglobs.length - 1].inner += tok.value;
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}
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if (tok.value || tok.output) append(tok);
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if (prev && prev.type === 'text' && tok.type === 'text') {
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prev.value += tok.value;
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prev.output = (prev.output || '') + tok.value;
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return;
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}
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tok.prev = prev;
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tokens.push(tok);
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prev = tok;
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};
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const extglobOpen = (type, value) => {
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const token = { ...EXTGLOB_CHARS[value], conditions: 1, inner: '' };
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token.prev = prev;
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token.parens = state.parens;
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token.output = state.output;
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const output = (opts.capture ? '(' : '') + token.open;
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increment('parens');
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push({ type, value, output: state.output ? '' : ONE_CHAR });
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push({ type: 'paren', extglob: true, value: advance(), output });
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extglobs.push(token);
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};
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const extglobClose = token => {
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let output = token.close + (opts.capture ? ')' : '');
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let rest;
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if (token.type === 'negate') {
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let extglobStar = star;
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if (token.inner && token.inner.length > 1 && token.inner.includes('/')) {
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extglobStar = globstar(opts);
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}
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if (extglobStar !== star || eos() || /^\)+$/.test(remaining())) {
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output = token.close = `)$))${extglobStar}`;
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}
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if (token.inner.includes('*') && (rest = remaining()) && /^\.[^\\/.]+$/.test(rest)) {
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// Any non-magical string (`.ts`) or even nested expression (`.{ts,tsx}`) can follow after the closing parenthesis.
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// In this case, we need to parse the string and use it in the output of the original pattern.
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// Suitable patterns: `/!(*.d).ts`, `/!(*.d).{ts,tsx}`, `**/!(*-dbg).@(js)`.
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//
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// Disabling the `fastpaths` option due to a problem with parsing strings as `.ts` in the pattern like `**/!(*.d).ts`.
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const expression = parse(rest, { ...options, fastpaths: false }).output;
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output = token.close = `)${expression})${extglobStar})`;
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}
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if (token.prev.type === 'bos') {
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state.negatedExtglob = true;
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}
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}
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push({ type: 'paren', extglob: true, value, output });
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decrement('parens');
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};
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/**
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* Fast paths
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*/
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if (opts.fastpaths !== false && !/(^[*!]|[/()[\]{}"])/.test(input)) {
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let backslashes = false;
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let output = input.replace(REGEX_SPECIAL_CHARS_BACKREF, (m, esc, chars, first, rest, index) => {
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if (first === '\\') {
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backslashes = true;
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return m;
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}
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if (first === '?') {
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if (esc) {
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return esc + first + (rest ? QMARK.repeat(rest.length) : '');
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}
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if (index === 0) {
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return qmarkNoDot + (rest ? QMARK.repeat(rest.length) : '');
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}
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return QMARK.repeat(chars.length);
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}
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if (first === '.') {
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return DOT_LITERAL.repeat(chars.length);
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}
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if (first === '*') {
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if (esc) {
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return esc + first + (rest ? star : '');
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}
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return star;
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}
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return esc ? m : `\\${m}`;
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});
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if (backslashes === true) {
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if (opts.unescape === true) {
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output = output.replace(/\\/g, '');
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} else {
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output = output.replace(/\\+/g, m => {
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return m.length % 2 === 0 ? '\\\\' : (m ? '\\' : '');
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});
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}
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}
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if (output === input && opts.contains === true) {
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state.output = input;
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return state;
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}
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state.output = utils.wrapOutput(output, state, options);
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return state;
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}
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/**
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* Tokenize input until we reach end-of-string
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*/
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while (!eos()) {
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value = advance();
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if (value === '\u0000') {
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continue;
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}
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/**
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* Escaped characters
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*/
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if (value === '\\') {
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const next = peek();
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if (next === '/' && opts.bash !== true) {
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continue;
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}
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if (next === '.' || next === ';') {
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continue;
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}
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if (!next) {
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value += '\\';
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push({ type: 'text', value });
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continue;
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}
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// collapse slashes to reduce potential for exploits
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const match = /^\\+/.exec(remaining());
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let slashes = 0;
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if (match && match[0].length > 2) {
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slashes = match[0].length;
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state.index += slashes;
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if (slashes % 2 !== 0) {
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value += '\\';
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}
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}
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if (opts.unescape === true) {
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value = advance();
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} else {
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value += advance();
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}
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if (state.brackets === 0) {
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push({ type: 'text', value });
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continue;
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}
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}
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/**
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* If we're inside a regex character class, continue
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* until we reach the closing bracket.
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*/
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if (state.brackets > 0 && (value !== ']' || prev.value === '[' || prev.value === '[^')) {
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if (opts.posix !== false && value === ':') {
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const inner = prev.value.slice(1);
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if (inner.includes('[')) {
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prev.posix = true;
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if (inner.includes(':')) {
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const idx = prev.value.lastIndexOf('[');
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const pre = prev.value.slice(0, idx);
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const rest = prev.value.slice(idx + 2);
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const posix = POSIX_REGEX_SOURCE[rest];
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if (posix) {
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prev.value = pre + posix;
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state.backtrack = true;
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advance();
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if (!bos.output && tokens.indexOf(prev) === 1) {
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bos.output = ONE_CHAR;
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}
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continue;
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}
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}
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}
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}
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if ((value === '[' && peek() !== ':') || (value === '-' && peek() === ']')) {
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value = `\\${value}`;
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}
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if (value === ']' && (prev.value === '[' || prev.value === '[^')) {
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value = `\\${value}`;
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}
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if (opts.posix === true && value === '!' && prev.value === '[') {
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value = '^';
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}
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prev.value += value;
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append({ value });
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continue;
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}
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/**
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* If we're inside a quoted string, continue
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* until we reach the closing double quote.
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*/
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if (state.quotes === 1 && value !== '"') {
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value = utils.escapeRegex(value);
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prev.value += value;
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append({ value });
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continue;
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}
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/**
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* Double quotes
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*/
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if (value === '"') {
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state.quotes = state.quotes === 1 ? 0 : 1;
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if (opts.keepQuotes === true) {
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push({ type: 'text', value });
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}
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continue;
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}
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/**
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* Parentheses
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*/
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if (value === '(') {
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increment('parens');
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push({ type: 'paren', value });
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continue;
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}
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if (value === ')') {
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if (state.parens === 0 && opts.strictBrackets === true) {
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throw new SyntaxError(syntaxError('opening', '('));
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}
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const extglob = extglobs[extglobs.length - 1];
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if (extglob && state.parens === extglob.parens + 1) {
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extglobClose(extglobs.pop());
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continue;
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}
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push({ type: 'paren', value, output: state.parens ? ')' : '\\)' });
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decrement('parens');
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continue;
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}
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|
|
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/**
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* Square brackets
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*/
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|
|
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if (value === '[') {
|
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if (opts.nobracket === true || !remaining().includes(']')) {
|
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if (opts.nobracket !== true && opts.strictBrackets === true) {
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throw new SyntaxError(syntaxError('closing', ']'));
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}
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value = `\\${value}`;
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} else {
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increment('brackets');
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}
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push({ type: 'bracket', value });
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continue;
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}
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|
|
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if (value === ']') {
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if (opts.nobracket === true || (prev && prev.type === 'bracket' && prev.value.length === 1)) {
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push({ type: 'text', value, output: `\\${value}` });
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continue;
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}
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|
|
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if (state.brackets === 0) {
|
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if (opts.strictBrackets === true) {
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throw new SyntaxError(syntaxError('opening', '['));
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}
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|
|
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push({ type: 'text', value, output: `\\${value}` });
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continue;
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}
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|
|
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decrement('brackets');
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|
|
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const prevValue = prev.value.slice(1);
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if (prev.posix !== true && prevValue[0] === '^' && !prevValue.includes('/')) {
|
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value = `/${value}`;
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}
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|
|
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prev.value += value;
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append({ value });
|
|
|
|
// when literal brackets are explicitly disabled
|
|
// assume we should match with a regex character class
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|
if (opts.literalBrackets === false || utils.hasRegexChars(prevValue)) {
|
|
continue;
|
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}
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|
|
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const escaped = utils.escapeRegex(prev.value);
|
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state.output = state.output.slice(0, -prev.value.length);
|
|
|
|
// when literal brackets are explicitly enabled
|
|
// assume we should escape the brackets to match literal characters
|
|
if (opts.literalBrackets === true) {
|
|
state.output += escaped;
|
|
prev.value = escaped;
|
|
continue;
|
|
}
|
|
|
|
// when the user specifies nothing, try to match both
|
|
prev.value = `(${capture}${escaped}|${prev.value})`;
|
|
state.output += prev.value;
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continue;
|
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}
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|
|
|
/**
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|
* Braces
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|
*/
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|
|
|
if (value === '{' && opts.nobrace !== true) {
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increment('braces');
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|
|
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const open = {
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type: 'brace',
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value,
|
|
output: '(',
|
|
outputIndex: state.output.length,
|
|
tokensIndex: state.tokens.length
|
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};
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braces.push(open);
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push(open);
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continue;
|
|
}
|
|
|
|
if (value === '}') {
|
|
const brace = braces[braces.length - 1];
|
|
|
|
if (opts.nobrace === true || !brace) {
|
|
push({ type: 'text', value, output: value });
|
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continue;
|
|
}
|
|
|
|
let output = ')';
|
|
|
|
if (brace.dots === true) {
|
|
const arr = tokens.slice();
|
|
const range = [];
|
|
|
|
for (let i = arr.length - 1; i >= 0; i--) {
|
|
tokens.pop();
|
|
if (arr[i].type === 'brace') {
|
|
break;
|
|
}
|
|
if (arr[i].type !== 'dots') {
|
|
range.unshift(arr[i].value);
|
|
}
|
|
}
|
|
|
|
output = expandRange(range, opts);
|
|
state.backtrack = true;
|
|
}
|
|
|
|
if (brace.comma !== true && brace.dots !== true) {
|
|
const out = state.output.slice(0, brace.outputIndex);
|
|
const toks = state.tokens.slice(brace.tokensIndex);
|
|
brace.value = brace.output = '\\{';
|
|
value = output = '\\}';
|
|
state.output = out;
|
|
for (const t of toks) {
|
|
state.output += (t.output || t.value);
|
|
}
|
|
}
|
|
|
|
push({ type: 'brace', value, output });
|
|
decrement('braces');
|
|
braces.pop();
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Pipes
|
|
*/
|
|
|
|
if (value === '|') {
|
|
if (extglobs.length > 0) {
|
|
extglobs[extglobs.length - 1].conditions++;
|
|
}
|
|
push({ type: 'text', value });
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Commas
|
|
*/
|
|
|
|
if (value === ',') {
|
|
let output = value;
|
|
|
|
const brace = braces[braces.length - 1];
|
|
if (brace && stack[stack.length - 1] === 'braces') {
|
|
brace.comma = true;
|
|
output = '|';
|
|
}
|
|
|
|
push({ type: 'comma', value, output });
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Slashes
|
|
*/
|
|
|
|
if (value === '/') {
|
|
// if the beginning of the glob is "./", advance the start
|
|
// to the current index, and don't add the "./" characters
|
|
// to the state. This greatly simplifies lookbehinds when
|
|
// checking for BOS characters like "!" and "." (not "./")
|
|
if (prev.type === 'dot' && state.index === state.start + 1) {
|
|
state.start = state.index + 1;
|
|
state.consumed = '';
|
|
state.output = '';
|
|
tokens.pop();
|
|
prev = bos; // reset "prev" to the first token
|
|
continue;
|
|
}
|
|
|
|
push({ type: 'slash', value, output: SLASH_LITERAL });
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Dots
|
|
*/
|
|
|
|
if (value === '.') {
|
|
if (state.braces > 0 && prev.type === 'dot') {
|
|
if (prev.value === '.') prev.output = DOT_LITERAL;
|
|
const brace = braces[braces.length - 1];
|
|
prev.type = 'dots';
|
|
prev.output += value;
|
|
prev.value += value;
|
|
brace.dots = true;
|
|
continue;
|
|
}
|
|
|
|
if ((state.braces + state.parens) === 0 && prev.type !== 'bos' && prev.type !== 'slash') {
|
|
push({ type: 'text', value, output: DOT_LITERAL });
|
|
continue;
|
|
}
|
|
|
|
push({ type: 'dot', value, output: DOT_LITERAL });
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Question marks
|
|
*/
|
|
|
|
if (value === '?') {
|
|
const isGroup = prev && prev.value === '(';
|
|
if (!isGroup && opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
|
|
extglobOpen('qmark', value);
|
|
continue;
|
|
}
|
|
|
|
if (prev && prev.type === 'paren') {
|
|
const next = peek();
|
|
let output = value;
|
|
|
|
if (next === '<' && !utils.supportsLookbehinds()) {
|
|
throw new Error('Node.js v10 or higher is required for regex lookbehinds');
|
|
}
|
|
|
|
if ((prev.value === '(' && !/[!=<:]/.test(next)) || (next === '<' && !/<([!=]|\w+>)/.test(remaining()))) {
|
|
output = `\\${value}`;
|
|
}
|
|
|
|
push({ type: 'text', value, output });
|
|
continue;
|
|
}
|
|
|
|
if (opts.dot !== true && (prev.type === 'slash' || prev.type === 'bos')) {
|
|
push({ type: 'qmark', value, output: QMARK_NO_DOT });
|
|
continue;
|
|
}
|
|
|
|
push({ type: 'qmark', value, output: QMARK });
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Exclamation
|
|
*/
|
|
|
|
if (value === '!') {
|
|
if (opts.noextglob !== true && peek() === '(') {
|
|
if (peek(2) !== '?' || !/[!=<:]/.test(peek(3))) {
|
|
extglobOpen('negate', value);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (opts.nonegate !== true && state.index === 0) {
|
|
negate();
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Plus
|
|
*/
|
|
|
|
if (value === '+') {
|
|
if (opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
|
|
extglobOpen('plus', value);
|
|
continue;
|
|
}
|
|
|
|
if ((prev && prev.value === '(') || opts.regex === false) {
|
|
push({ type: 'plus', value, output: PLUS_LITERAL });
|
|
continue;
|
|
}
|
|
|
|
if ((prev && (prev.type === 'bracket' || prev.type === 'paren' || prev.type === 'brace')) || state.parens > 0) {
|
|
push({ type: 'plus', value });
|
|
continue;
|
|
}
|
|
|
|
push({ type: 'plus', value: PLUS_LITERAL });
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Plain text
|
|
*/
|
|
|
|
if (value === '@') {
|
|
if (opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
|
|
push({ type: 'at', extglob: true, value, output: '' });
|
|
continue;
|
|
}
|
|
|
|
push({ type: 'text', value });
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Plain text
|
|
*/
|
|
|
|
if (value !== '*') {
|
|
if (value === '$' || value === '^') {
|
|
value = `\\${value}`;
|
|
}
|
|
|
|
const match = REGEX_NON_SPECIAL_CHARS.exec(remaining());
|
|
if (match) {
|
|
value += match[0];
|
|
state.index += match[0].length;
|
|
}
|
|
|
|
push({ type: 'text', value });
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Stars
|
|
*/
|
|
|
|
if (prev && (prev.type === 'globstar' || prev.star === true)) {
|
|
prev.type = 'star';
|
|
prev.star = true;
|
|
prev.value += value;
|
|
prev.output = star;
|
|
state.backtrack = true;
|
|
state.globstar = true;
|
|
consume(value);
|
|
continue;
|
|
}
|
|
|
|
let rest = remaining();
|
|
if (opts.noextglob !== true && /^\([^?]/.test(rest)) {
|
|
extglobOpen('star', value);
|
|
continue;
|
|
}
|
|
|
|
if (prev.type === 'star') {
|
|
if (opts.noglobstar === true) {
|
|
consume(value);
|
|
continue;
|
|
}
|
|
|
|
const prior = prev.prev;
|
|
const before = prior.prev;
|
|
const isStart = prior.type === 'slash' || prior.type === 'bos';
|
|
const afterStar = before && (before.type === 'star' || before.type === 'globstar');
|
|
|
|
if (opts.bash === true && (!isStart || (rest[0] && rest[0] !== '/'))) {
|
|
push({ type: 'star', value, output: '' });
|
|
continue;
|
|
}
|
|
|
|
const isBrace = state.braces > 0 && (prior.type === 'comma' || prior.type === 'brace');
|
|
const isExtglob = extglobs.length && (prior.type === 'pipe' || prior.type === 'paren');
|
|
if (!isStart && prior.type !== 'paren' && !isBrace && !isExtglob) {
|
|
push({ type: 'star', value, output: '' });
|
|
continue;
|
|
}
|
|
|
|
// strip consecutive `/**/`
|
|
while (rest.slice(0, 3) === '/**') {
|
|
const after = input[state.index + 4];
|
|
if (after && after !== '/') {
|
|
break;
|
|
}
|
|
rest = rest.slice(3);
|
|
consume('/**', 3);
|
|
}
|
|
|
|
if (prior.type === 'bos' && eos()) {
|
|
prev.type = 'globstar';
|
|
prev.value += value;
|
|
prev.output = globstar(opts);
|
|
state.output = prev.output;
|
|
state.globstar = true;
|
|
consume(value);
|
|
continue;
|
|
}
|
|
|
|
if (prior.type === 'slash' && prior.prev.type !== 'bos' && !afterStar && eos()) {
|
|
state.output = state.output.slice(0, -(prior.output + prev.output).length);
|
|
prior.output = `(?:${prior.output}`;
|
|
|
|
prev.type = 'globstar';
|
|
prev.output = globstar(opts) + (opts.strictSlashes ? ')' : '|$)');
|
|
prev.value += value;
|
|
state.globstar = true;
|
|
state.output += prior.output + prev.output;
|
|
consume(value);
|
|
continue;
|
|
}
|
|
|
|
if (prior.type === 'slash' && prior.prev.type !== 'bos' && rest[0] === '/') {
|
|
const end = rest[1] !== void 0 ? '|$' : '';
|
|
|
|
state.output = state.output.slice(0, -(prior.output + prev.output).length);
|
|
prior.output = `(?:${prior.output}`;
|
|
|
|
prev.type = 'globstar';
|
|
prev.output = `${globstar(opts)}${SLASH_LITERAL}|${SLASH_LITERAL}${end})`;
|
|
prev.value += value;
|
|
|
|
state.output += prior.output + prev.output;
|
|
state.globstar = true;
|
|
|
|
consume(value + advance());
|
|
|
|
push({ type: 'slash', value: '/', output: '' });
|
|
continue;
|
|
}
|
|
|
|
if (prior.type === 'bos' && rest[0] === '/') {
|
|
prev.type = 'globstar';
|
|
prev.value += value;
|
|
prev.output = `(?:^|${SLASH_LITERAL}|${globstar(opts)}${SLASH_LITERAL})`;
|
|
state.output = prev.output;
|
|
state.globstar = true;
|
|
consume(value + advance());
|
|
push({ type: 'slash', value: '/', output: '' });
|
|
continue;
|
|
}
|
|
|
|
// remove single star from output
|
|
state.output = state.output.slice(0, -prev.output.length);
|
|
|
|
// reset previous token to globstar
|
|
prev.type = 'globstar';
|
|
prev.output = globstar(opts);
|
|
prev.value += value;
|
|
|
|
// reset output with globstar
|
|
state.output += prev.output;
|
|
state.globstar = true;
|
|
consume(value);
|
|
continue;
|
|
}
|
|
|
|
const token = { type: 'star', value, output: star };
|
|
|
|
if (opts.bash === true) {
|
|
token.output = '.*?';
|
|
if (prev.type === 'bos' || prev.type === 'slash') {
|
|
token.output = nodot + token.output;
|
|
}
|
|
push(token);
|
|
continue;
|
|
}
|
|
|
|
if (prev && (prev.type === 'bracket' || prev.type === 'paren') && opts.regex === true) {
|
|
token.output = value;
|
|
push(token);
|
|
continue;
|
|
}
|
|
|
|
if (state.index === state.start || prev.type === 'slash' || prev.type === 'dot') {
|
|
if (prev.type === 'dot') {
|
|
state.output += NO_DOT_SLASH;
|
|
prev.output += NO_DOT_SLASH;
|
|
|
|
} else if (opts.dot === true) {
|
|
state.output += NO_DOTS_SLASH;
|
|
prev.output += NO_DOTS_SLASH;
|
|
|
|
} else {
|
|
state.output += nodot;
|
|
prev.output += nodot;
|
|
}
|
|
|
|
if (peek() !== '*') {
|
|
state.output += ONE_CHAR;
|
|
prev.output += ONE_CHAR;
|
|
}
|
|
}
|
|
|
|
push(token);
|
|
}
|
|
|
|
while (state.brackets > 0) {
|
|
if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', ']'));
|
|
state.output = utils.escapeLast(state.output, '[');
|
|
decrement('brackets');
|
|
}
|
|
|
|
while (state.parens > 0) {
|
|
if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', ')'));
|
|
state.output = utils.escapeLast(state.output, '(');
|
|
decrement('parens');
|
|
}
|
|
|
|
while (state.braces > 0) {
|
|
if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', '}'));
|
|
state.output = utils.escapeLast(state.output, '{');
|
|
decrement('braces');
|
|
}
|
|
|
|
if (opts.strictSlashes !== true && (prev.type === 'star' || prev.type === 'bracket')) {
|
|
push({ type: 'maybe_slash', value: '', output: `${SLASH_LITERAL}?` });
|
|
}
|
|
|
|
// rebuild the output if we had to backtrack at any point
|
|
if (state.backtrack === true) {
|
|
state.output = '';
|
|
|
|
for (const token of state.tokens) {
|
|
state.output += token.output != null ? token.output : token.value;
|
|
|
|
if (token.suffix) {
|
|
state.output += token.suffix;
|
|
}
|
|
}
|
|
}
|
|
|
|
return state;
|
|
};
|
|
|
|
/**
|
|
* Fast paths for creating regular expressions for common glob patterns.
|
|
* This can significantly speed up processing and has very little downside
|
|
* impact when none of the fast paths match.
|
|
*/
|
|
|
|
parse.fastpaths = (input, options) => {
|
|
const opts = { ...options };
|
|
const max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
|
|
const len = input.length;
|
|
if (len > max) {
|
|
throw new SyntaxError(`Input length: ${len}, exceeds maximum allowed length: ${max}`);
|
|
}
|
|
|
|
input = REPLACEMENTS[input] || input;
|
|
const win32 = utils.isWindows(options);
|
|
|
|
// create constants based on platform, for windows or posix
|
|
const {
|
|
DOT_LITERAL,
|
|
SLASH_LITERAL,
|
|
ONE_CHAR,
|
|
DOTS_SLASH,
|
|
NO_DOT,
|
|
NO_DOTS,
|
|
NO_DOTS_SLASH,
|
|
STAR,
|
|
START_ANCHOR
|
|
} = constants.globChars(win32);
|
|
|
|
const nodot = opts.dot ? NO_DOTS : NO_DOT;
|
|
const slashDot = opts.dot ? NO_DOTS_SLASH : NO_DOT;
|
|
const capture = opts.capture ? '' : '?:';
|
|
const state = { negated: false, prefix: '' };
|
|
let star = opts.bash === true ? '.*?' : STAR;
|
|
|
|
if (opts.capture) {
|
|
star = `(${star})`;
|
|
}
|
|
|
|
const globstar = opts => {
|
|
if (opts.noglobstar === true) return star;
|
|
return `(${capture}(?:(?!${START_ANCHOR}${opts.dot ? DOTS_SLASH : DOT_LITERAL}).)*?)`;
|
|
};
|
|
|
|
const create = str => {
|
|
switch (str) {
|
|
case '*':
|
|
return `${nodot}${ONE_CHAR}${star}`;
|
|
|
|
case '.*':
|
|
return `${DOT_LITERAL}${ONE_CHAR}${star}`;
|
|
|
|
case '*.*':
|
|
return `${nodot}${star}${DOT_LITERAL}${ONE_CHAR}${star}`;
|
|
|
|
case '*/*':
|
|
return `${nodot}${star}${SLASH_LITERAL}${ONE_CHAR}${slashDot}${star}`;
|
|
|
|
case '**':
|
|
return nodot + globstar(opts);
|
|
|
|
case '**/*':
|
|
return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${slashDot}${ONE_CHAR}${star}`;
|
|
|
|
case '**/*.*':
|
|
return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${slashDot}${star}${DOT_LITERAL}${ONE_CHAR}${star}`;
|
|
|
|
case '**/.*':
|
|
return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${DOT_LITERAL}${ONE_CHAR}${star}`;
|
|
|
|
default: {
|
|
const match = /^(.*?)\.(\w+)$/.exec(str);
|
|
if (!match) return;
|
|
|
|
const source = create(match[1]);
|
|
if (!source) return;
|
|
|
|
return source + DOT_LITERAL + match[2];
|
|
}
|
|
}
|
|
};
|
|
|
|
const output = utils.removePrefix(input, state);
|
|
let source = create(output);
|
|
|
|
if (source && opts.strictSlashes !== true) {
|
|
source += `${SLASH_LITERAL}?`;
|
|
}
|
|
|
|
return source;
|
|
};
|
|
|
|
module.exports = parse;
|