Function updateFileSearchState

extensions/cli/src/ui/UserInput.tsx:302–351

(text: string, cursor: number)

  // Update file search UI state based on input
  const updateFileSearchState = (text: string, cursor: number) => {
    // Don't show file search in remote mode
    if (isRemoteMode) {
      setShowFileSearch(false);
      return;
    }

    // Disable file search if we're in shell mode or slash command mode
    const trimmed = text.trimStart();
    if (trimmed.startsWith("!") || trimmed.startsWith("/")) {
      setShowFileSearch(false);
      return;
    }

    // Check if we're in a file search context
    const beforeCursor = text.slice(0, cursor);

    // Find the first @ symbol that starts a file search context
    // We need to find the last @ that has no space before it (or is at word boundary)
    let firstAtIndex = -1;
    for (let i = beforeCursor.length - 1; i >= 0; i--) {
      if (beforeCursor[i] === "@") {
        // Check if this @ is at the start of a word (preceded by space/newline or start of string)
        const beforeAt = beforeCursor.slice(0, i);
        const lastChar = beforeAt[beforeAt.length - 1];
        if (i === 0 || lastChar === " " || lastChar === "\n") {
          // Check if there's any space/newline between this @ and cursor
          const afterThis = beforeCursor.slice(i + 1);
          if (!afterThis.includes(" ") && !afterThis.includes("\n")) {
            firstAtIndex = i;
            break;
          }
        }
      }
    }

    if (firstAtIndex === -1) {
      setShowFileSearch(false);
    } else {
      // Get ALL text after the @ symbol (including subsequent @ symbols)
      const afterAt = beforeCursor.slice(firstAtIndex + 1);

      // We're in a file search context
      setShowFileSearch(true);
      setFileSearchFilter(afterAt);
      setSelectedFileIndex(0);
      setShowSlashCommands(false);
      setShowBashMode(false);
    }
  };

  // Get filtered commands for navigation - using the same sorting logic as SlashCommandUI
  const getFilteredCommands = () => {