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41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
"""
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Utilities imported from ipython_genutils
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"""
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from __future__ import annotations
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import re
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import textwrap
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from textwrap import dedent
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from textwrap import indent as _indent
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from typing import List
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def indent(val: str) -> str:
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return _indent(val, " ")
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def wrap_paragraphs(text: str, ncols: int = 80) -> List[str]:
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"""Wrap multiple paragraphs to fit a specified width.
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This is equivalent to textwrap.wrap, but with support for multiple
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paragraphs, as separated by empty lines.
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Returns
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-------
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list of complete paragraphs, wrapped to fill `ncols` columns.
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"""
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paragraph_re = re.compile(r"\n(\s*\n)+", re.MULTILINE)
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text = dedent(text).strip()
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paragraphs = paragraph_re.split(text)[::2] # every other entry is space
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out_ps = []
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indent_re = re.compile(r"\n\s+", re.MULTILINE)
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for p in paragraphs:
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# presume indentation that survives dedent is meaningful formatting,
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# so don't fill unless text is flush.
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if indent_re.search(p) is None:
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# wrap paragraph
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p = textwrap.fill(p, ncols)
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out_ps.append(p)
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return out_ps
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