如何使用正則表達式連續提取文本？

Question

如何從使用正則表達式的行連續字符「_」的源字符串中提取以下內容。請注意，行連續字符必須是該行上的最後一個字符。 。此外，搜索應該從字符串的結尾開始，並在第一個「（」遇到終止那是因爲我只關心什麼發生在文本的末尾

通緝輸出：

var1, _ 
    var2, _ 
    var3 

來源：

... 
Func(var1, _ 
    var2, _ 
    var3 

Answer 1

試試這個

(?<=Func\()(?<match>(?:[^\r\n]+_\r\n)+[^\r\n]+) 

說明

@" 
(?<=    # Assert that the regex below can be matched, with the match ending at this position (positive lookbehind) 
    Func    # Match the characters 「Func」 literally 
    \(    # Match the character 「(」 literally 
) 
(?<match>  # Match the regular expression below and capture its match into backreference with name 「match」 
    (?:    # Match the regular expression below 
     [^\r\n]   # Match a single character NOT present in the list below 
          # A carriage return character 
          # A line feed character 
     +    # Between one and unlimited times, as many times as possible, giving back as needed (greedy) 
     _    # Match the character 「_」 literally 
     \r    # Match a carriage return character 
     \n    # Match a line feed character 
    )+    # Between one and unlimited times, as many times as possible, giving back as needed (greedy) 
    [^\r\n]   # Match a single character NOT present in the list below 
         # A carriage return character 
         # A line feed character 
     +    # Between one and unlimited times, as many times as possible, giving back as needed (greedy) 
) 
"