54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
def wrap_text(text: str, max_width: int = 20) -> list[str]:
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"""
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将长文本按指定宽度换行
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Args:
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text: 要换行的文本
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max_width: 每行的最大字符数，默认20
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Returns:
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换行后的文本行列表
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"""
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if not text:
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return []
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lines = []
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current_line = ""
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# 按换行符分割，处理已有的换行
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paragraphs = text.split('\n')
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for paragraph in paragraphs:
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if not paragraph.strip():
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lines.append("")
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continue
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words = paragraph.split()
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for word in words:
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# 如果当前行加上新词会超过限制
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if len(current_line) + len(word) + 1 > max_width:
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if current_line:
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lines.append(current_line.strip())
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current_line = word
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else:
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# 如果单个词就超过限制，强制换行
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if len(word) > max_width:
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# 长词强制切分
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for i in range(0, len(word), max_width):
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lines.append(word[i:i + max_width])
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else:
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lines.append(word)
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else:
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if current_line:
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current_line += " " + word
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else:
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current_line = word
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# 处理段落的最后一行
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if current_line:
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lines.append(current_line.strip())
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current_line = ""
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return lines
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