save code

2026-01-26 08:04:53 +08:00
parent 0895398138
commit e4b59c5ee4
1238 changed files with 95107 additions and 1068 deletions
@@ -0,0 +1,308 @@
+'use strict';
+
+const constants = require('./constants');
+const utils = require('./utils');
+
+/**
+ * Constants
+ */
+
+const {
+  MAX_LENGTH,
+  POSIX_REGEX_SOURCE,
+  REGEX_NON_SPECIAL_CHARS,
+  REGEX_SPECIAL_CHARS_BACKREF,
+  REPLACEMENTS
+} = constants;
+
+/**
+ * Helpers
+ */
+
+const expandRange = (args, options) => {
+  if (typeof options.expandRange === 'function') {
+    return options.expandRange(...args, options);
+  }
+
+  args.sort();
+  const value = `[${args.join('-')}]`;
+
+  try {
+    /* eslint-disable-next-line no-new */
+    new RegExp(value);
+  } catch (ex) {
+    return args.map(v => utils.escapeRegex(v)).join('..');
+  }
+
+  return value;
+};
+
+/**
+ * Create the message for a syntax error
+ */
+
+const syntaxError = (type, char) => {
+  return `Missing ${type}: "${char}" - use "\\\\${char}" to match literal characters`;
+};
+
+/**
+ * Parse the given input string.
+ * @param {String} input
+ * @param {Object} options
+ * @return {Object}
+ */
+
+const parse = (input, options) => {
+  if (typeof input !== 'string') {
+    throw new TypeError('Expected a string');
+  }
+
+  input = REPLACEMENTS[input] || input;
+
+  const opts = { ...options };
+  const max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
+
+  let len = input.length;
+  if (len > max) {
+    throw new SyntaxError(`Input length: ${len}, exceeds maximum allowed length: ${max}`);
+  }
+
+  const bos = { type: 'bos', value: '', output: opts.prepend || '' };
+  const tokens = [bos];
+
+  const capture = opts.capture ? '' : '?:';
+  const win32 = utils.isWindows(options);
+
+  // create constants based on platform, for windows or posix
+  const PLATFORM_CHARS = constants.globChars(win32);
+  const EXTGLOB_CHARS = constants.extglobChars(PLATFORM_CHARS);
+
+  const {
+    DOT_LITERAL,
+    PLUS_LITERAL,
+    SLASH_LITERAL,
+    ONE_CHAR,
+    DOTS_SLASH,
+    NO_DOT,
+    NO_DOT_SLASH,
+    NO_DOTS_SLASH,
+    QMARK,
+    QMARK_NO_DOT,
+    STAR,
+    START_ANCHOR
+  } = PLATFORM_CHARS;
+
+  const globstar = opts => {
+    return `(${capture}(?:(?!${START_ANCHOR}${opts.dot ? DOTS_SLASH : DOT_LITERAL}).)*?)`;
+  };
+
+  const nodot = opts.dot ? '' : NO_DOT;
+  const qmarkNoDot = opts.dot ? QMARK : QMARK_NO_DOT;
+  let star = opts.bash === true ? globstar(opts) : STAR;
+
+  if (opts.capture) {
+    star = `(${star})`;
+  }
+
+  // minimatch options support
+  if (typeof opts.noext === 'boolean') {
+    opts.noextglob = opts.noext;
+  }
+
+  const state = {
+    input,
+    index: -1,
+    start: 0,
+    dot: opts.dot === true,
+    consumed: '',
+    output: '',
+    prefix: '',
+    backtrack: false,
+    negated: false,
+    brackets: 0,
+    braces: 0,
+    parens: 0,
+    quotes: 0,
+    globstar: false,
+    tokens
+  };
+
+  input = utils.removePrefix(input, state);
+  len = input.length;
+
+  const extglobs = [];
+  const braces = [];
+  const stack = [];
+  let prev = bos;
+  let value;
+
+  /**
+   * Tokenizing helpers
+   */
+
+  const eos = () => state.index === len - 1;
+  const peek = state.peek = (n = 1) => input[state.index + n];
+  const advance = state.advance = () => input[++state.index] || '';
+  const remaining = () => input.slice(state.index + 1);
+  const consume = (value = '', num = 0) => {
+    state.consumed += value;
+    state.index += num;
+  };
+
+  const append = token => {
+    state.output += token.output != null ? token.output : token.value;
+    consume(token.value);
+  };
+
+  const negate = () => {
+    let count = 1;
+
+    while (peek() === '!' && (peek(2) !== '(' || peek(3) === '?')) {
+      advance();
+      state.start++;
+      count++;
+    }
+
+    if (count % 2 === 0) {
+      return false;
+    }
+
+    state.negated = true;
+    state.start++;
+    return true;
+  };
+
+  const increment = type => {
+    state[type]++;
+    stack.push(type);
+  };
+
+  const decrement = type => {
+    state[type]--;
+    stack.pop();
+  };
+
+  /**
+   * Push tokens onto the tokens array. This helper speeds up
+   * tokenizing by 1) helping us avoid backtracking as much as possible,
+   * and 2) helping us avoid creating extra tokens when consecutive
+   * characters are plain text. This improves performance and simplifies
+   * lookbehinds.
+   */
+
+  const push = tok => {
+    if (prev.type === 'globstar') {
+      const isBrace = state.braces > 0 && (tok.type === 'comma' || tok.type === 'brace');
+      const isExtglob = tok.extglob === true || (extglobs.length && (tok.type === 'pipe' || tok.type === 'paren'));
+
+      if (tok.type !== 'slash' && tok.type !== 'paren' && !isBrace && !isExtglob) {
+        state.output = state.output.slice(0, -prev.output.length);
+        prev.type = 'star';
+        prev.value = '*';
+        prev.output = star;
+        state.output += prev.output;
+      }
+    }
+
+    if (extglobs.length && tok.type !== 'paren') {
+      extglobs[extglobs.length - 1].inner += tok.value;
+    }
+
+    if (tok.value || tok.output) append(tok);
+    if (prev && prev.type === 'text' && tok.type === 'text') {
+      prev.value += tok.value;
+      prev.output = (prev.output || '') + tok.value;
+      return;
+    }
+
+    tok.prev = prev;
+    tokens.push(tok);
+    prev = tok;
+  };
+
+  const extglobOpen = (type, value) => {
+    const token = { ...EXTGLOB_CHARS[value], conditions: 1, inner: '' };
+
+    token.prev = prev;
+    token.parens = state.parens;
+    token.output = state.output;
+    const output = (opts.capture ? '(' : '') + token.open;
+
+    increment('parens');
+    push({ type, value, output: state.output ? '' : ONE_CHAR });
+    push({ type: 'paren', extglob: true, value: advance(), output });
+    extglobs.push(token);
+  };
+
+  const extglobClose = token => {
+    let output = token.close + (opts.capture ? ')' : '');
+    let rest;
+
+    if (token.type === 'negate') {
+      let extglobStar = star;
+
+      if (token.inner && token.inner.length > 1 && token.inner.includes('/')) {
+        extglobStar = globstar(opts);
+      }
+
+      if (extglobStar !== star || eos() || /^\)+$/.test(remaining())) {
+        output = token.close = `)$))${extglobStar}`;
+      }
+
+      if (token.inner.includes('*') && (rest = remaining()) && /^\.[^\\/.]+$/.test(rest)) {
+        // Any non-magical string (`.ts`) or even nested expression (`.{ts,tsx}`) can follow after the closing parenthesis.
+        // In this case, we need to parse the string and use it in the output of the original pattern.
+        // Suitable patterns: `/!(*.d).ts`, `/!(*.d).{ts,tsx}`, `**/!(*-dbg).@(js)`.
+        //
+        // Disabling the `fastpaths` option due to a problem with parsing strings as `.ts` in the pattern like `**/!(*.d).ts`.
+        const expression = parse(rest, { ...options, fastpaths: false }).output;
+
+        output = token.close = `)${expression})${extglobStar})`;
+      }
+
+      if (token.prev.type === 'bos') {
+        state.negatedExtglob = true;
+      }
+    }
+
+    push({ type: 'paren', extglob: true, value, output });
+    decrement('parens');
+  };
+
+  /**
+   * Fast paths
+   */
+
+  if (opts.fastpaths !== false && !/(^[*!]|[/()[\]{}"])/.test(input)) {
+    let backslashes = false;
+
+    let output = input.replace(REGEX_SPECIAL_CHARS_BACKREF, (m, esc, chars, first, rest, index) => {
+      if (first === '\\') {
+        backslashes = true;
+        return m;
+      }
+
+      if (first === '?') {
+        if (esc) {
+          return esc + first + (rest ? QMARK.repeat(rest.length) : '');
+        }
+        if (index === 0) {
+          return qmarkNoDot + (rest ? QMARK.repeat(rest.length) : '');
+        }
+        return QMARK.repeat(chars.length);
+      }
+
+      if (first === '.') {
+        return DOT_LITERAL.repeat(chars.length);
+      }
+
+      if (first === '*') {
+        if (esc) {
+          return esc + first + (rest ? star : '');
+        }
+        return star;
+      }
+      return esc ? m : `\\${m}`;
+    });
+
+    if