Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

update: after tobyinks 3rd update I see that order of operations plays a role, I still think you should perlbug it, because at least the perlop, and warnings, need to warn more about this ...

Documenting Auto-increment and Auto-decrement is great, but needs to warn about MORE, like this case, or  foo($1,$2)  <c>foo("$1","$2")

Even B::Lint doesn't warn about it

B::Concise shows no difference between the two

Even the mighty perlcritic doesn't warn about undefined behaviour

But I actually knew about this and forgot

warnings/lint/critic need to recognize and warn me cause I'll probably forget :)

It ought to be easy to recognize an unquoted $1 as a function argument and issue a warning , at least for perlcritic -- if that concise output is any indication, lint might be slightly harder

Maybe perltrap/Common Perl Pitfalls could also use some updating


This part below written before your butterjunkeffect update, on the approach to solving this problem

Ick :) Um, do you really want to find the cause, or do you want a better way to write it?

I'm not inclined to try debugging a program that hacks a tree as a string, I'm inclined to create a tree first (say an array of array or Tree ) and then navigate (calculate distance)

update: tobyink is probably right as to cause

Those rosalind newick trees could be drawn with ascii Dumping trees to a console.

In reply to Re^3: $1 not "freezing" in an addition by Anonymous Monk
in thread $1 not "freezing" in an addition by grondilu

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    [choroba]: Do you mean nettop?

    How do I use this? | Other CB clients
    Other Users?
    Others surveying the Monastery: (4)
    As of 2018-04-20 19:25 GMT
    Find Nodes?
      Voting Booth?