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