Ok, I'm looking to replace my pathetic home-grown logging package with Log4perl. But I can't find a layout formatter that does what I want - indenting and putting a prefix string before every line in a multi-line string.

For example, with what I have now, I can do the following: 

printlog("one\ntwo\n");
indentlog(+1);
printlog("three\nfour\n");
indentlog(-1);
pringlog("five\nsix\n");

[download]
The output would look like this: 
05/31/06 17:57:37 | one
05/31/06 17:57:37 | two
05/31/06 17:57:37 |     three
05/31/06 17:57:37 |     four
05/31/06 17:57:37 | five
05/31/06 17:57:37 | six

[download]
Obviously, the PatternLayout class can take care of the prefix, but it doesn't handle embedded newlines. And there's an example of doing indentation in the FAQ, but that's with a custom Appender, and I want that functionality in the Layout class so I can use it with both the File appender and the Screen appender.

Surely I'm not the only one that wants something like this. Worst case, I can modify my printlog subroutine to use Log4perl, but I'm hoping for something better than that.

Any suggestions? Thanks.

In reply to Indenting, multi-line Log4perl Layout class? by splinky

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.