' and " are different. All of this is documented.
A literal should mean, I am to be taken literally

Nonsense. Literals are always interpreted. The literal 1234 in the expression $a = 1234; is a group of characters, yet they are interpreted as a number. And somehome, the quotes in the literal "abc" are removed.

Without interpretation, the compiler wouldn't know where the string ends and/or wouldn't allow certain characters to be part of the string. For example, what if there was a quote in your ASCII art? How would Perl know the string doesn't end at that quote, but rather the following one? (or the one after that?) For single quoted strings, you preceed the quote with a backslash. Of course, now we need a method of allowing backslashes followed by single quotes...

Whenever something is embedded in something else, be it a string in a Perl source file, a object in a data file or text between HTML tags, some form of encoding or escaping is required. To be crystal clear: You can't have strings and Perl code in the same file without some form of escaping or encoding.


In reply to Re^5: Escaping multiple escape chars by ikegami
in thread Escaping multiple escape chars by JamesNC

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.