Function parseAllAtCommands

packages/cli/src/ui/hooks/atCommandProcessor.ts:48–116

* Parses a query string to find all '@ ' commands and text segments. * Handles \ escaped spaces within paths.

(query: string)

 * Handles \ escaped spaces within paths.
 */
function parseAllAtCommands(query: string): AtCommandPart[] {
  const parts: AtCommandPart[] = [];
  let currentIndex = 0;

  while (currentIndex < query.length) {
    let atIndex = -1;
    let nextSearchIndex = currentIndex;
    // Find next unescaped '@'
    while (nextSearchIndex < query.length) {
      if (
        query[nextSearchIndex] === '@' &&
        (nextSearchIndex === 0 || query[nextSearchIndex - 1] !== '\\')
      ) {
        atIndex = nextSearchIndex;
        break;
      }
      nextSearchIndex++;
    }

    if (atIndex === -1) {
      // No more @
      if (currentIndex < query.length) {
        parts.push({ type: 'text', content: query.substring(currentIndex) });
      }
      break;
    }

    // Add text before @
    if (atIndex > currentIndex) {
      parts.push({
        type: 'text',
        content: query.substring(currentIndex, atIndex),
      });
    }

    // Parse @path
    let pathEndIndex = atIndex + 1;
    let inEscape = false;
    while (pathEndIndex < query.length) {
      const char = query[pathEndIndex];
      if (inEscape) {
        inEscape = false;
      } else if (char === '\\') {
        inEscape = true;
      } else if (/[,\s;!?()[\]{}]/.test(char)) {
        // Path ends at first whitespace or punctuation not escaped
        break;
      } else if (char === '.') {
        // For . we need to be more careful - only terminate if followed by whitespace or end of string
        // This allows file extensions like .txt, .js but terminates at sentence endings like "file.txt. Next sentence"
        const nextChar =
          pathEndIndex + 1 < query.length ? query[pathEndIndex + 1] : '';
        if (nextChar === '' || /\s/.test(nextChar)) {
          break;
        }
      }
      pathEndIndex++;
    }