正则表达式用于排除非Golang文件在inotifywait中无法工作。

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英文:

regex to exclude non golang files not working with inotifywait

问题

以下是用于过滤所有非go文件(即扩展名为'.go'的文件)的正则表达式:

^([\S][^.][^g][^o]|[\S].[^g].|[\S]..[^o]$|[\S][^.]..|[\S]{1,2})$

^([^.]*)($|.)

你可以在这里测试它们(在正则表达式下方的菜单中点击“尝试”Go):

http://fiddle.re/80kvh6

http://fiddle.re/mhv1h6

尽管它们在Go中似乎工作正常,但在inotifywait的排除过滤器中(使用posix ERE格式)却不起作用。

我正在尝试为我的Go项目在Makefile中设置一个“监视和重新加载”任务。同时,我假设文件或文件夹名称中不包含空格。

英文:

Below are the regex for filtering out all the non go files (i.e those with '.go' extension)

^([\S]*[^.][^g][^o]|[\S]*.[^g].|[\S]*..[^o]$|[\S]*[^.]..|[\S]{1,2})$

^([^.]*)($|[.]($|[\S]$|g[^o]$|[^g]o$|[^g][^o]$|([\S]+)\.($|.$|g[^o]$|[^g]o$|[^g][^o]$|[^.]{3,}$)|[^.]{3,}$))

You can test them here (click on try it 'Go' in the menu below the regex)

http://fiddle.re/80kvh6

http://fiddle.re/mhv1h6

While they seem to work correctly in go but not with inotifywait's exclude filter (which uses posix ERE format)

I am trying to setup a "watch and reload" task in my Makefile for a golang project. Also i am assuming file or folders names dont have spaces.

答案1

得分: 1

收到了。看起来[:graph:]不是扩展posix中非空格字符的类标识符。以下是可以使用的正则表达式:

^[[:graph:]]*[^.][^g][^o]$|^[[:graph:]]{1,2}$|^[[:graph:]]*.[^g].$|^[[:graph:]]*..[^o]$|^[[:graph:]]*[^.]..$

或者根据stribizhev的评论,以下是更好的正则表达式:

[^.][^g][^o]$|^..$|.[^g].$|..[^o]$|[^.]..$

英文:

Got the issue. It seems [:graph:] not \S the class identifier for non-space chars in extended posix. The below is good to go.

^[[:graph:]]*[^.][^g][^o]$|^[[:graph:]]{1,2}$|^[[:graph:]]*.[^g].$|^[[:graph:]]*..[^o]$|^[[:graph:]]*[^.]..$

or even a better one from stribizhev comment [^.][^g][^o]$|^..$|.[^g].$|..[^o]$|[^.]..$

答案2

得分: 1

你可以使用以下正则表达式进行匹配:

.[^.][^.][^.]+$|.[^.][^o]$|.[^g][^.]$|.[^.]$

请参考演示

或者如果你可以进行分组:

.([^.][^.][^.]+|[^.][^o]|[^g][^.]|[^.])$

请参考演示

解释如下:

  • \. - 匹配一个点号

  • ([^.][^.][^.]+|[^.][^o]|[^g][^.]|[^.]) - 一个包含多个选择的分组:

    • [^.][^.][^.]+ - 匹配两个非点号字符和一个或多个非点号字符...
    • [^.][^o] - 匹配一个非点号字符和一个非o字符...
    • [^g][^.] - 匹配一个非g字符和一个非点号字符...
    • [^.] - 匹配一个非点号字符...
  • $ - 匹配字符串的末尾。

英文:

You may use

\.[^.][^.][^.]+$|\.[^.][^o]$|\.[^g][^.]$|\.[^.]$

See demo

Or if you can group:

\.([^.][^.][^.]+|[^.][^o]|[^g][^.]|[^.])$

See demo

See explanation:

  • \. - a literal dot
  • ([^.][^.][^.]+|[^.][^o]|[^g][^.]|[^.]) - a group of alternatives:
    • [^.][^.][^.]+ - 2 characters other than . and 1 or more characters other than ....
    • [^.][^o] - a character other than a dot and a character other than o...
    • [^g][^.] - a character other than g and a character other than a dot...
    • [^.] - a character other than a dot...
  • $ - right before the end of string.

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  • 本文由 发表于 2015年8月27日 16:35:37
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