Function useCommandCompletion

packages/cli/src/ui/hooks/useCommandCompletion.tsx:43–239

(
  buffer: TextBuffer,
  dirs: readonly string[],
  cwd: string,
  slashCommands: readonly SlashCommand[],
  commandContext: CommandContext,
  reverseSearchActive: boolean = false,
  config?: Config,
)

}

export function useCommandCompletion(
  buffer: TextBuffer,
  dirs: readonly string[],
  cwd: string,
  slashCommands: readonly SlashCommand[],
  commandContext: CommandContext,
  reverseSearchActive: boolean = false,
  config?: Config,
): UseCommandCompletionReturn {
  const {
    suggestions,
    activeSuggestionIndex,
    visibleStartIndex,
    showSuggestions,
    isLoadingSuggestions,
    isPerfectMatch,

    setSuggestions,
    setShowSuggestions,
    setActiveSuggestionIndex,
    setIsLoadingSuggestions,
    setIsPerfectMatch,
    setVisibleStartIndex,

    resetCompletionState,
    navigateUp,
    navigateDown,
  } = useCompletion();

  const cursorRow = buffer.cursor[0];
  const cursorCol = buffer.cursor[1];

  const { completionMode, query, completionStart, completionEnd } =
    useMemo(() => {
      const currentLine = buffer.lines[cursorRow] || '';
      if (cursorRow === 0 && isSlashCommand(currentLine.trim())) {
        return {
          completionMode: CompletionMode.SLASH,
          query: currentLine,
          completionStart: 0,
          completionEnd: currentLine.length,
        };
      }

      const codePoints = toCodePoints(currentLine);
      for (let i = cursorCol - 1; i >= 0; i--) {
        const char = codePoints[i];

        if (char === ' ') {
          let backslashCount = 0;
          for (let j = i - 1; j >= 0 && codePoints[j] === '\\'; j--) {
            backslashCount++;
          }
          if (backslashCount % 2 === 0) {
            return {
              completionMode: CompletionMode.IDLE,
              query: null,
              completionStart: -1,