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Emacs正则表达式搜索少于20个字符的行

[英]Emacs regex search for lines with less then 20 characters

原文 2013-05-18 19:07:32 2 1 regex/ emacs

因此，如果我们有一些具有可变行长的txt文件，那么如何使用emacs正则表达式行来搜索少一些字符（比如说20个）的字符。

1 个解决方案

This should do the job it matches any line with between 0 and 20 tokens on it 这应该可以完成匹配标记在0到20之间的任何行的工作

^[^\\n]{0,20}$

^ Start of a line (or String) ^开头（或字符串）

[^\\n] Anything that is not a new line [^\\n]任何不是换行的内容

{0,20} The previous between 0 and 20 times {0,20}前一个0到20次之间

$ End of line (or String) $行尾（或字符串）

Emacs正则表达式：匹配模式之间跨越多行的任何字符 - Emacs regex: any characters spanning multiple lines between matching pattern

Emacs正则表达式搜索然后编写 - Emacs regex search then write

emacs空间正则表达式搜索 - emacs space regex search

Python 正则表达式搜索以子字符串中某些字符开头的行 - Python regex search for lines starting with certain characters within substrings

正则表达式搜索以查找并删除以相同字符结尾的连续行 - Regex search to find and remove consecutive lines which end with same characters

20 个字符后的正则表达式拆分 - Regex Split after 20 characters

在emacs中搜索并替换字符序列 - Search and replace a sequence of characters in emacs

notepad ++正则表达式可清除少于X个字符或仅包含空格的行的.txt - notepad++ regex to clean .txt of lines with less than X characters or only spaces

正则表达式删除少于3个字符的“字符组” - Regex to remove 'groups of characters' with less than 3 characters

正则表达式搜索“/”，“<”和“>”等字符 - Regex search for characters like “/”, “<” and “>”

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相关问题 Emacs正则表达式：匹配模式之间跨越多行的任何字符 - Emacs regex: any characters spanning multiple lines between matching pattern Emacs正则表达式搜索然后编写 - Emacs regex search then write emacs空间正则表达式搜索 - emacs space regex search Python 正则表达式搜索以子字符串中某些字符开头的行 - Python regex search for lines starting with certain characters within substrings 正则表达式搜索以查找并删除以相同字符结尾的连续行 - Regex search to find and remove consecutive lines which end with same characters 20 个字符后的正则表达式拆分 - Regex Split after 20 characters 在emacs中搜索并替换字符序列 - Search and replace a sequence of characters in emacs notepad ++正则表达式可清除少于X个字符或仅包含空格的行的.txt - notepad++ regex to clean .txt of lines with less than X characters or only spaces 正则表达式删除少于3个字符的“字符组” - Regex to remove 'groups of characters' with less than 3 characters 正则表达式搜索“/”，“<”和“>”等字符 - Regex search for characters like “/”, “<” and “>”

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