在大多数情况下,它完成了这项工作,但有时(我很难精确,它依赖于什么)它会陷入无限循环,因为它不会切割文本字符串.
def insertNewlines(text, lineLength):
"""
Given text and a desired line length, wrap the text as a typewriter would.
Insert a newline character ("\n") after each word that reaches or exceeds
the desired line length.
text: a string containing the text to wrap.
line_length: the number of characters to include on a line before wrapping
the next word.
returns: a string, with newline characters inserted appropriately.
"""
def spacja(text, lineLength):
return text.find(' ', lineLength-1)
if len(text) <= lineLength:
return text
else:
x = spacja(text, lineLength)
return text[:x] + '\n' + insertNewlines(text[x+1:], lineLength)
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适用于我尝试过的所有情况除外
insertNewlines('Random text to wrap again.', 5)
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和
insertNewlines('mubqhci sixfkt pmcwskvn ikvoawtl rxmtc ehsruk efha cigs itaujqe pfylcoqw iremcty cmlvqjz uzswa ezuw vcsodjk fsjbyz nkhzaoct', 38)
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我不知道为什么.
不要重新发明轮子,而是使用textwrap库:
import textwrap
wrapped = textwrap.fill(text, 38)
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您自己的代码不处理没有找到空格并spacja返回-1的情况.
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