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find_variant_by_alias

problemreductions::registry::variant

Function find_variant_by_alias 

Source 
pub fn find_variant_by_alias(
    input: &str,
) -> Option<(&'static VariantEntry, BTreeMap<String, String>)>
Expand description

Find a variant entry by a variant-level alias (case-insensitive).

A variant-level alias points at a specific reduction-graph node (e.g., "3SAT" → KSatisfiability with variant {k: "K3"}), unlike problem-level aliases which resolve only to a canonical problem name.

Returns the matched entry along with its variant map. The first match in registration order wins — duplicate variant-level aliases across problems are a declaration bug.