在转义特殊字符时，将ASCII-art字符串设置为变量

I'm working in Ruby and I'd like to set a huge string of ASCII-art characters to a variable, however I am running into some problems dealing with special characters. Most ASCII-art contains octothorps and quotes and all sorts of problematic special characters that require escaping. Is there any easy way to escape mass bulks of special characters without having to go into each and every single character one by one?

我在Ruby工作，我想在变量中设置一大串ASCII艺术字符，但是我遇到了一些处理特殊字符的问题。大多数ASCII艺术包含octothorps和引号以及需要转义的各种有问题的特殊字符。是否有任何简单的方法可以逃避大量的特殊字符，而无需逐个进入每一个字符？

1 个解决方案

#1

Use heredoc. That is what it is for. With heredoc, you can set the terminating string to any string that does not appear in your ASCII art. Combining that with single quotes, which inactivates interpolation, you would not need to escape.

使用heredoc。这就是它的用途。使用heredoc，您可以将终止字符串设置为ASCII艺术中未出现的任何字符串。将它与单引号相结合，可以使插值失效，您无需转义。

ascii_art = <<'SOME_SEQUENCE_THAT_DOES_NOT_APPEAR_IN_THE_ASCII_ART'
                                      .....'',;;::cccllllllllllllcccc:::;;,,,''...'',,'..
                            ..';cldkO00KXNNNNXXXKK000OOkkkkkxxxxxddoooddddddxxxxkkkkOO0XXKx:.
                      .':ok0KXXXNXK0kxolc:;;,,,,,,,,,,,;;,,,''''''',,''..              .'lOXKd'
                 .,lx00Oxl:,'............''''''...................    ...,;;'.             .oKXd.
              .ckKKkc'...'',:::;,'.........'',;;::::;,'..........'',;;;,'.. .';;'.           'kNKc.
           .:kXXk:.    ..       ..................          .............,:c:'...;:'.         .dNNx.
          :0NKd,          .....''',,,,''..               ',...........',,,'',,::,...,,.        .dNNx.
         .xXd.         .:;'..         ..,'             .;,.               ...,,'';;'. ...       .oNNo
         .0K.         .;.              ;'              ';                      .'...'.           .oXX:
        .oNO.         .                 ,.              .     ..',::ccc:;,..     ..                lXX:
       .dNX:               ......       ;.                'cxOKK0OXWWWWWWWNX0kc.                    :KXd.
     .l0N0;             ;d0KKKKKXK0ko:...              .l0X0xc,...lXWWWWWWWWKO0Kx'                   ,ONKo.
   .lKNKl...'......'. .dXWN0kkk0NWWWWWN0o.            :KN0;.  .,cokXWWNNNNWNKkxONK: .,:c:.      .';;;;:lk0XXx;
  :KN0l';ll:'.         .,:lodxxkO00KXNWWWX000k.       oXNx;:okKX0kdl:::;'',;coxkkd, ...'. ...'''.......',:lxKO:.
 oNNk,;c,'',.                      ...;xNNOc,.         ,d0X0xc,.     .dOd,           ..;dOKXK00000Ox:.   ..''dKO,
'KW0,:,.,:..,oxkkkdl;'.                'KK'              ..           .dXX0o:'....,:oOXNN0d;.'. ..,lOKd.   .. ;KXl.
;XNd,;  ;. l00kxoooxKXKx:..ld:         ;KK'                             .:dkO000000Okxl;.   c0;      :KK;   .  ;XXc
'XXdc.  :. ..    '' 'kNNNKKKk,      .,dKNO.                                   ....       .'c0NO'      :X0.  ,.  xN0.
.kNOc'  ,.      .00. ..''...      .l0X0d;.             'dOkxo;...                    .;okKXK0KNXx;.   .0X:  ,.  lNX'
 ,KKdl  .c,    .dNK,            .;xXWKc.                .;:coOXO,,'.......       .,lx0XXOo;...oNWNXKk:.'KX;  '   dNX.
  :XXkc'....  .dNWXl        .';l0NXNKl.          ,lxkkkxo' .cK0.          ..;lx0XNX0xc.     ,0Nx'.','.kXo  .,  ,KNx.
   cXXd,,;:, .oXWNNKo'    .'..  .'.'dKk;        .cooollox;.xXXl     ..,cdOKXXX00NXc.      'oKWK'     ;k:  .l. ,0Nk.
    cXNx.  . ,KWX0NNNXOl'.           .o0Ooldk;            .:c;.':lxOKKK0xo:,.. ;XX:   .,lOXWWXd.      . .':,.lKXd.
     lXNo    cXWWWXooNWNXKko;'..       .lk0x;       ...,:ldk0KXNNOo:,..       ,OWNOxO0KXXNWNO,        ....'l0Xk,
     .dNK.   oNWWNo.cXK;;oOXNNXK0kxdolllllooooddxk00KKKK0kdoc:c0No        .'ckXWWWNXkc,;kNKl.          .,kXXk,
      'KXc  .dNWWX;.xNk.  .kNO::lodxkOXWN0OkxdlcxNKl,..        oN0'..,:ox0XNWWNNWXo.  ,ONO'           .o0Xk;
      .ONo    oNWWN0xXWK, .oNKc       .ONx.      ;X0.          .:XNKKNNWWWWNKkl;kNk. .cKXo.           .ON0;
      .xNd   cNWWWWWWWWKOkKNXxl:,'...;0Xo'.....'lXK;...',:lxk0KNWWWWNNKOd:..   lXKclON0:            .xNk.
      .dXd   ;XWWWWWWWWWWWWWWWWWWNNNNNWWNNNNNNNNNWWNNNNNNWWWWWNXKNNk;..        .dNWWXd.             cXO.
      .xXo   .ONWNWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWNNK0ko:'..OXo          'l0NXx,              :KK,
      .OXc    :XNk0NWXKNWWWWWWWWWWWWWWWWWWWWWNNNX00NNx:'..       lXKc.     'lONN0l.              .oXK:
      .KX;    .dNKoON0;lXNkcld0NXo::cd0NNO:;,,'.. .0Xc            lXXo..'l0NNKd,.              .c0Nk,
      :XK.     .xNX0NKc.cXXl  ;KXl    .dN0.       .0No            .xNXOKNXOo,.               .l0Xk;.
     .dXk.      .lKWN0d::OWK;  lXXc    .OX:       .ONx.     . .,cdk0XNXOd;.   .'''....;c:'..;xKXx,
     .0No         .:dOKNNNWNKOxkXWXo:,,;ONk;,,,,,;c0NXOxxkO0XXNXKOdc,.  ..;::,...;lol;..:xKXOl.
     ,XX:             ..';cldxkOO0KKKXXXXXXXXXXKKKKK00Okxdol:;'..   .';::,..':llc,..'lkKXkc.
     :NX'    .     ''            ..................             .,;:;,',;ccc;'..'lkKX0d;.
     lNK.   .;      ,lc,.         ................        ..,,;;;;;;:::,....,lkKX0d:.
    .oN0.    .'.      .;ccc;,'....              ....'',;;;;;;;;;;'..   .;oOXX0d:.
    .dN0.      .;;,..       ....                ..''''''''....     .:dOKKko;.
     lNK'         ..,;::;;,'.........................           .;d0X0kc'.
     .xXO'                                                 .;oOK0x:.
      .cKKo.                                    .,:oxkkkxk0K0xc'.
        .oKKkc,.                         .';cok0XNNNX0Oxoc,.
          .;d0XX0kdlc:;,,,',,,;;:clodkO0KK0Okdl:,'..
              .,coxO0KXXXXXXXKK0OOxdoc:,..

                    ...
SOME_SEQUENCE_THAT_DOES_NOT_APPEAR_IN_THE_ASCII_ART