Method [kRefreshLine]

lib/internal/readline/interface.js:493–542

()

  }

  [kRefreshLine]() {
    // line length
    const line = this[kPrompt] + this.line;
    const dispPos = this[kGetDisplayPos](line);
    const lineCols = dispPos.cols;
    const lineRows = dispPos.rows;

    // cursor position
    const cursorPos = this.getCursorPos();

    // First move to the bottom of the current line, based on cursor pos
    const prevRows = this.prevRows || 0;
    if (prevRows > 0) {
      moveCursor(this.output, 0, -prevRows);
    }

    // Cursor to left edge.
    cursorTo(this.output, 0);
    // erase data
    clearScreenDown(this.output);

    if (this[kIsMultiline]) {
      const lines = StringPrototypeSplit(this.line, '\n');
      // Write first line with normal prompt
      this[kWriteToOutput](this[kPrompt] + lines[0]);

      // For continuation lines, add the "|" prefix
      for (let i = 1; i < lines.length; i++) {
        this[kWriteToOutput](`\n${kMultilinePrompt.description}` + lines[i]);
      }
    } else {
      // Write the prompt and the current buffer content.
      this[kWriteToOutput](line);
    }

    // Force terminal to allocate a new line
    if (lineCols === 0) {
      this[kWriteToOutput](' ');
    }

    // Move cursor to original position.
    cursorTo(this.output, cursorPos.cols);

    const diff = lineRows - cursorPos.rows;
    if (diff > 0) {
      moveCursor(this.output, 0, -diff);
    }

    this.prevRows = cursorPos.rows;
  }

  /**
   * Closes the `readline.Interface` instance.