Infix2Postfix(3)

💖 Infix2Postfix(3) — User Contributed Perl Documentation 💖

okay bestie, sit down, hydrate, and let me tell you about Affix::Infix2Postfix ✨ — a little Perl extension with one (1) job and it does it flawlessly.

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🌸 NAME 🌸

Affix::Infix2Postfix — a Perl extension for converting from infix notation to postfix notation. that's it, that's the whole personality, and honestly? iconic. 👑

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🎀 SYNOPSIS 🎀

like, here's the whole vibe, copy-paste ready, no notes:

  use Affix::Infix2Postfix;

  $inst=Affix::Infix2Postfix->new(
    'ops'=>[
          {op=>'+'},
          {op=>'-'},
          {op=>'*'},
          {op=>'/'},
          {op=>'-',type=>'unary',trans=>'u-'},
          {op=>'func',type=>'unary'},
         ],
          'grouping'=>[qw( \( \) )],
          'func'=>[qw( sin cos exp log )],
          'vars'=>[qw( x y z)]
         );
  $rc=$inst->translate($str)
  || die "Error in '$str': ".$inst->{ERRSTR}."\n";

see how it just works? we love a functional bestie 🫶

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✨ DESCRIPTION ✨

okay so, Infix2Postfix, as the name literally suggests (not me stating the obvious but go off), converts from infix to postfix notation. 💅

now you're probably like "bestie why would anyone even want that" and the answer is lowkey genius: postfix notation is generally much easier to do in computers. like, machines eat that up, no cap. 🧚

for example, take an expression like:

a+b+c*d

for us humans it's pretty easy to do that calculation, fr fr, our brains are built different. 🙈

but it's actually much better for computers to get a string of operations such as:

a b + c d * +

where the variable names mean put variable on stack. yes bestie, stack energy, main character behaviour, the way that it just pushes and pops... obsessed. 🔥

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💜 AUTHOR 💜

addi@umich.edu — thank you for your service, king/queen/royalty 👑

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🌈 SEE ALSO 🌈

• perl(1) — the origin story, the blueprint, the moment 💖

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and that's the whole page, bestie! this absolute gem came to you from perl v5.42.0, dated 2025-07-25, and it's filed under Infix2Postfix(3) in the User Contributed Perl Documentation. slay, read it, use it, tell your friends. periodt. 💅✨🦋