Math::E...or::Util(3)

💖 Math::Expression::Evaluator::Util — the little helper bestie of Math::Expression::Evaluator

okay so this is Math::Expression::Evaluator::Util, living its best life in the User Contributed Perl Documentation section of the manual, and fr fr its whole job is being the shared toolbox for the Math::Expression::Evaluator distribution. Common functions, one package, zero drama. ✨

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✨ SYNOPSIS ✨

like, here's the vibe in actual code, no cap:

use Math::Expression::Evaluator::Util qw(is_lvalue);

# ...
if (is_lvalue($ast)){
    # $ast represents an lvalue, at the moment just a variable
}

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🌸 DESCRIPTION 🌸

This is a package with common functions used in the different modules in the Math::Expression::Evaluator distribution. it's giving shared utility code, it's giving we all import from the same place so nobody duplicates logic, iconic behavior honestly 💅

🎀 is_lvalue

is_lvalue($ast) checks if (a simplified version of) $ast represents something that can be assigned to, i.e. is a variable.

so like — bestie, this is the vibe check for "can I put a value here?" and rn the answer is yes if it's a variable. that's the whole list. $ast in, boolean out, no notes. 🦋

ngl the "(a simplified version of)" bit matters — we're not doing a full deep-dive on the AST here, we're checking the simplified version, and at the moment "assignable" just means "it's a variable." keep that in mind before you go assuming it handles every exotic lvalue case, because it does not claim to. 🫶

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and that's the whole page, bestie, short and sweet like a perfect text back. 🌈

this one's served up as perl v5.42.0, dated 2025-07-25, and it's the User Contributed Perl Documentation edition of the page — so thank the mysterious perl doc fairies for bringing Math::Expression::Evaluator::Util to a terminal near you. mwah. 💖🎀✨