Please clarify: You want to put line numbers at the start of each line of the HTML file, or you want to put line numbers at the start of each line displayed in the browser?

If you're putting line numbers at the start of each line of the HTML file, it's a Perl 1-liner kind of thing:

perl -pi.bak -e "$_ = qq/$.: $_/;"

But that will break HTML where tags span lines. And it will look pretty confusing when rendered in the browser since logical file newlines don't equate to browser-rendered newlines.

On the other hand, if you want every line rendered in the browser to display a line number, you've got a bit of a problem, as HTML output is generally formatted into paragraphs, not lines. Unless you're using <pre> tags, how are you going to determine where new lines begin in someone's browser? Regular HTML text auto-wraps in normal browsers.


Dave


In reply to Re: Add line numbers to HTML by davido
in thread Add line numbers to HTML by Anonymous Monk

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.