Function parse

packages/qwik/src/optimizer/src/path.ts:496–593

(path: string)

  };

  const parse = function parse(path: string): ParsedPath {
    assertPath(path);

    const ret = {
      root: '',
      dir: '',
      base: '',
      ext: '',
      name: '',
    };
    if (path.length === 0) {
      return ret;
    }
    let code = path.charCodeAt(0);
    let start;
    const isAbsolute = code === 47; /*/*/
    if (isAbsolute) {
      ret.root = '/';
      start = 1;
    } else {
      start = 0;
    }
    let startDot = -1;
    let startPart = 0;
    let end = -1;
    let matchedSlash = true;
    let i = path.length - 1;

    // Track the state of characters (if any) we see before our first dot and
    // after any path separator we find
    let preDotState = 0;

    // Get non-dir info
    for (; i >= start; --i) {
      code = path.charCodeAt(i);
      if (code === 47 /*/*/) {
        // If we reached a path separator that was not part of a set of path
        // separators at the end of the string, stop now
        if (!matchedSlash) {
          startPart = i + 1;
          break;
        }
        continue;
      }
      if (end === -1) {
        // We saw the first non-path separator, mark this as the end of our
        // extension
        matchedSlash = false;
        end = i + 1;
      }
      if (code === 46 /*.*/) {
        // If this is our first dot, mark it as the start of our extension
        if (startDot === -1) {
          startDot = i;
        } else if (preDotState !== 1) {
          preDotState = 1;
        }
      } else if (startDot !== -1) {