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行尾 - 新增管道 |

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行尾 - 新增管道 |

有人可以解釋如何在每行末尾放置一個帶有正規表示式的管道嗎？

在記事本++中使用尋找和替換

我正在嘗試放置content |

乾杯!

答案1

如果您只想在每行末尾新增管道，只需使用此「尋找」正規表示式：

$

（美元符號與正規表示式中的行尾相符）

這個「替換」：

|

確保您啟用了正規表示式查找。

答案2

找什麼：(.*)

用。$1|

這使用分組，$1基本上就是說插入括號中找到的內容，然後將管道添加到末尾。將.捕獲除某些空白之外的任何字符，例如在這種情況下理想的換行符。此*方法允許使用 0 個或多個字元捕獲.

這是可擴展的，因此如果您只想捕獲特定行，例如包含測試的行：

找什麼：(.*test.*)

用。$1|

因此，如果您輸入這些內容，然後按一下“全部替換”，則每行末尾都會有與正規表示式相符的管道。

答案3

改變了答案。
我會用這個。我在單線或多線模式下工作。
我不確定記事本有什麼可用（即搜尋/替換、尋找/替換等。）
查找此： (?=\r\n|\n|\r|$)
並插入（替換）此： |

只是關於 $ metachar 到底是什麼這個複雜主題的一些註解。
這並不像應有的那麼容易，而且文件還有很多不足之處。

無論如何，這是我的看法 -

 # Regular Expression Docs:
 # Metacharacter  $ 
 # Match the end of the line (or before newline at the end)
 # ** This really is misworded, it really means:
 #
 #    In single line mode,
 #      In two separate matches (in global context) 
 #         Match before and after a newline at the end of a string if there is a newline,
 #      OR, Match the end of the string only.
 #
 #    In multi-line mode,
 #         Match before OR after a newline at the end of a line or string,
 #         but not both.
 #
 # ---------------------------------------------
 # The above explanation is conditional upon the qualifying 
 # subexpressions surrounding the $ metachar
 # ---------------------------------------------

 # /$/g  Single line mode:
 # Matches before newline (if there is one) AND end of string (always this)

 print "=== /\$/g ===============\n";
    $str = "0  ";          $str =~ s/$/|/g;  print "'$str'\n---\n";
    $str = "1  \n";        $str =~ s/$/|/g;  print "'$str'\n---\n";
    $str = "2  \n\n";      $str =~ s/$/|/g;  print "'$str'\n---\n";
    $str = "3  \n\n\n";    $str =~ s/$/|/g;  print "'$str'\n---\n";
    $str = "4  \n\n\n\n";  $str =~ s/$/|/g;  print "'$str'\n\n";

 # /$/mg   Multi-line mode:
 # Matches before each newline (if there is one) OR end of string (not both)

 print "===  /\$/mg ===============\n";
    $str = "0  ";          $str =~ s/$/|/mg;  print "'$str'\n---\n";
    $str = "1  \n";        $str =~ s/$/|/mg;  print "'$str'\n---\n";
    $str = "2  \n\n";      $str =~ s/$/|/mg;  print "'$str'\n---\n";
    $str = "3  \n\n\n";    $str =~ s/$/|/mg;  print "'$str'\n---\n";
    $str = "4  \n\n\n\n";  $str =~ s/$/|/mg;  print "'$str'\n\n";

 # /(?=\r\n|\n|\r|$)/g   Single line mode:
 # Parsing the expression for //m Multi-line mode,
 # Equivalent of /$/m  can now be run in Single line mode:
 # This is What /$/m  probably really is.
 # Matches before each newline (if there is one) OR end of string (not both)

 print "=== /(?=\\r\\n|\\n|\\r|\$)/g ==============\n";
    $str = "0  ";          $str =~ s/(?=\r\n|\n|\r|$)/|/g;  print "'$str'\n---\n";
    $str = "1  \n";        $str =~ s/(?=\r\n|\n|\r|$)/|/g;  print "'$str'\n---\n";
    $str = "2  \n\n";      $str =~ s/(?=\r\n|\n|\r|$)/|/g;  print "'$str'\n---\n";
    $str = "3  \n\n\n";    $str =~ s/(?=\r\n|\n|\r|$)/|/g;  print "'$str'\n---\n";
    $str = "4  \n\n\n\n";  $str =~ s/(?=\r\n|\n|\r|$)/|/g;  print "'$str'\n\n";

 # /(?=\r\n|\n|\r|$)/mg   Multi-line mode:
 # Exact same output.

 print "=== /(?=\\r\\n|\\n|\\r|\$)/mg ==============\n";
    $str = "0  ";          $str =~ s/(?=\r\n|\n|\r|$)/|/mg;  print "'$str'\n---\n";
    $str = "1  \n";        $str =~ s/(?=\r\n|\n|\r|$)/|/mg;  print "'$str'\n---\n";
    $str = "2  \n\n";      $str =~ s/(?=\r\n|\n|\r|$)/|/mg;  print "'$str'\n---\n";
    $str = "3  \n\n\n";    $str =~ s/(?=\r\n|\n|\r|$)/|/mg;  print "'$str'\n---\n";
    $str = "4  \n\n\n\n";  $str =~ s/(?=\r\n|\n|\r|$)/|/mg;  print "'$str'\n\n";

輸出>>

 === /$/g ===============
 '0  |'
 ---
 '1  |
 |'
 ---
 '2
 |
 |'
 ---
 '3

 |
 |'
 ---
 '4


 |
 |'

 ===  /$/mg ===============
 '0  |'
 ---
 '1  |
 |'
 ---
 '2  |
 |
 |'
 ---
 '3  |
 |
 |
 |'
 ---
 '4  |
 |
 |
 |
 |'

 === /(?=\r\n|\n|\r|$)/g ==============
 '0  |'
 ---
 '1  |
 |'
 ---
 '2  |
 |
 |'
 ---
 '3  |
 |
 |
 |'
 ---
 '4  |
 |
 |
 |
 |'

 === /(?=\r\n|\n|\r|$)/mg ==============
 '0  |'
 ---
 '1  |
 |'
 ---
 '2  |
 |
 |'
 ---
 '3  |
 |
 |
 |'
 ---
 '4  |
 |
 |
 |
 |'

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