Also do not forget that tr/// has no concept of "words". So if you do a tr/this/that/, it means that all 't' get replaced by 't'; 'h' by 'h', 'i' by 'a' and 's' by 't', which is probably not what you wanted if you expected all words "this" to be replaced by the word "that" (which of course will happen, but at the same time "is" will be changed into "at"). So tr/// will work on individual characters only. If you need to do some more sophisticated work, use s///.

CountZero

"If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law


In reply to Re: Re: Difference between tr// and s///? by CountZero
in thread Difference between tr/// and s///? by kalamiti

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.