Function blankStringContents

src/resolution/strip-comments.ts:31–70

(text: string)

 * must conservatively inspect those expressions in the original source.
 */
export function blankStringContents(text: string): string {
  const out = text.split('');
  let i = 0;
  const n = text.length;
  while (i < n) {
    const c = text[i]!;
    // A quote inside a JS regex is data, not the beginning of a string.
    // Expression-start punctuation and keywords distinguish these from division.
    if (c === '/' && /(?:^|[=(:,)!&|?;{}\[\]+*%~^<>-]|\b(?:return|throw|case|yield|await|else|do|typeof|void|delete|new|in|of|instanceof))\s*$/.test(text.slice(Math.max(0, i - 32), i))) {
      let end = i + 1;
      let inClass = false;
      for (; end < n && text[end] !== '\n'; end++) {
        if (text[end] === '\\') { end++; continue; }
        if (text[end] === '[') inClass = true;
        if (text[end] === ']') inClass = false;
        if (text[end] === '/' && !inClass) break;
      }
      if (end < n && text[end] === '/') { i = end + 1; continue; }
    }
    if (c === '"' || c === "'" || c === '`') {
      const quote = c;
      i++;
      while (i < n && text[i] !== quote) {
        if (text[i] === '\\' && i + 1 < n) {
          out[i] = ' ';
          out[i + 1] = ' ';
          i += 2;
          continue;
        }
        if (quote !== '`' && text[i] === '\n') break;
        if (text[i] !== '\n') out[i] = ' ';
        i++;
      }
      if (i < n && text[i] === quote) i++;
      continue;
    }
    i++;
  }
  return out.join('');
}

export type CommentLang =
  | 'python'