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56 lines
1.8 KiB
56 lines
1.8 KiB
4 years ago
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import re
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from typing import Iterable, List, Tuple
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from .cells import cell_len, chop_cells
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from ._loop import loop_last
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re_word = re.compile(r"\s*\S+\s*")
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def words(text: str) -> Iterable[Tuple[int, int, str]]:
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position = 0
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word_match = re_word.match(text, position)
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while word_match is not None:
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start, end = word_match.span()
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word = word_match.group(0)
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yield start, end, word
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word_match = re_word.match(text, end)
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def divide_line(text: str, width: int, fold: bool = True) -> List[int]:
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divides: List[int] = []
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append = divides.append
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line_position = 0
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_cell_len = cell_len
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for start, _end, word in words(text):
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word_length = _cell_len(word.rstrip())
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if line_position + word_length > width:
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if word_length > width:
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if fold:
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for last, line in loop_last(
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chop_cells(word, width, position=line_position)
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):
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if last:
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line_position = _cell_len(line)
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else:
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start += len(line)
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append(start)
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else:
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if start:
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append(start)
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line_position = _cell_len(word)
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elif line_position and start:
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append(start)
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line_position = _cell_len(word)
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else:
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line_position += _cell_len(word)
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return divides
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if __name__ == "__main__": # pragma: no cover
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from .console import Console
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console = Console(width=10)
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console.print("12345 abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ 12345")
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print(chop_cells("abcdefghijklmnopqrstuvwxyz", 10, position=2))
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