Method slice

tensorflow/python/debug/cli/debugger_cli_common.py:230–268

Slice a RichTextLines object. The object itself is not changed. A sliced instance is returned. Args: begin: (int) Beginning line index (inclusive). Must be >= 0. end: (int) Ending line index (exclusive). Must be >= 0. Returns: (RichTextLines) Sliced output instance o

(self, begin, end)

    return len(self._lines)

  def slice(self, begin, end):
    """Slice a RichTextLines object.

    The object itself is not changed. A sliced instance is returned.

    Args:
      begin: (int) Beginning line index (inclusive). Must be >= 0.
      end: (int) Ending line index (exclusive). Must be >= 0.

    Returns:
      (RichTextLines) Sliced output instance of RichTextLines.

    Raises:
      ValueError: If begin or end is negative.
    """

    if begin < 0 or end < 0:
      raise ValueError("Encountered negative index.")

    # Copy lines.
    lines = self.lines[begin:end]

    # Slice font attribute segments.
    font_attr_segs = {}
    for key in self.font_attr_segs:
      if key >= begin and key < end:
        font_attr_segs[key - begin] = self.font_attr_segs[key]

    # Slice annotations.
    annotations = {}
    for key in self.annotations:
      if not isinstance(key, int):
        # Annotations can contain keys that are not line numbers.
        annotations[key] = self.annotations[key]
      elif key >= begin and key < end:
        annotations[key - begin] = self.annotations[key]

    return RichTextLines(
        lines, font_attr_segs=font_attr_segs, annotations=annotations)

  def extend(self, other):
    """Extend this instance of RichTextLines with another instance.