Break subtitle lines on punctuation.

[HakkaTjakka]

By adding these lines of code (utils.py):

line 151: end_with_punctuation = False
line 169: and not end_with_punctuation
line 191: end_with_punctuation = timing["word"].endswith(".")

    def iterate_subtitles():
        line_len = 0
        line_count = 1
        # the next subtitle to yield (a list of word timings with whitespace)
        subtitle: List[dict] = []
        last: float = get_start(result["segments"]) or 0.0
        for segment in result["segments"]:
            chunk_index = 0
            words_count = max_words_per_line
            end_with_punctuation = False                                                  # here

            while chunk_index < len(segment["words"]):
                remaining_words = len(segment["words"]) - chunk_index
                if max_words_per_line > len(segment["words"]) - chunk_index:
                    words_count = remaining_words
                for i, original_timing in enumerate(
                    segment["words"][chunk_index : chunk_index + words_count]
                ):
                    timing = original_timing.copy()
                    long_pause = (
                        not preserve_segments and timing["start"] - last > 3.0
                    )
                    has_room = line_len + len(timing["word"]) <= max_line_width
                    seg_break = i == 0 and len(subtitle) > 0 and preserve_segments
                    if (
                        line_len > 0
                        and has_room
                        and not long_pause
                        and not seg_break
                        and not end_with_punctuation                                                  # here
                    ):
                        # line continuation
                        line_len += len(timing["word"])
                    else:
                        # new line
                        timing["word"] = timing["word"].strip()
                        if (
                            len(subtitle) > 0
                            and max_line_count is not None
                            and (long_pause or line_count >= max_line_count)
                            or seg_break
                        ):
                            # subtitle break
                            yield subtitle
                            subtitle = []
                            line_count = 1
                        elif line_len > 0:
                            # line break
                            line_count += 1
                            timing["word"] = "\n" + timing["word"]
                        line_len = len(timing["word"].strip())
                    subtitle.append(timing)
                    end_with_punctuation = timing["word"].endswith(".")                # and here
                    last = timing["start"]
                chunk_index += max_words_per_line
        if len(subtitle) > 0:
            yield subtitle

`