正则表达式+字符串数组 [英] Regex + Arrays of Strings

问题描述

我想使用一些正则表达式检查一个字符串数组.

我想知道如何从第二次出现的项目中进行搜索.

如果我的文件包含以下字符串的数组:

I have an array of strings I''d like to check using some regular expressions.

I was wondering how to search FROM the second occurrence of an item.

If my file contains an array of these strings:

Green 
Blue
Green
Orange 
Blue
Yellow

如何从"GREEN"的第二个匹配项的位置中搜索(上面有下划线)?

How would I search FROM the position of the second match of "GREEN" (underlined above)?

open(MYFILE, "C:\\MyFile.txt")||die;
my @lines = <MYFILE>;
foreach $line (@lines){
    if($line =~ m/regex pattern/)
    {
        #search FROM that match for the next thing I need to match
        #need code here~
    }
    else
    {
        #the regex does not match $line
    }
}

推荐答案

line(@lines){ if(

line (@lines){ if(

line =〜m/regex pattern/) { #search从该匹配项中查找我需要匹配的下一件事 #需要这里的代码〜 } 别的 { #正则表达式不匹配

line =~ m/regex pattern/) { #search FROM that match for the next thing I need to match #need code here~ } else { #the regex does not match

行 } }

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