libsyntax-operator-is-perl - 0.02-2+b1 main

Syntax::Operator::Is provides an infix operator that checks if a given value
matches a value constraint provided by Data::Checks.
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Support for custom infix operators was added in the Perl 5.37.x development
cycle and is available from development release v5.37.7 onwards, and
therefore in Perl v5.38 onwards. The documentation of XS::Parse::Infix
describes the situation in more detail.
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While Perl versions before this do not support custom infix operators, they
can still be used via XS::Parse::Infix and hence XS::Parse::Keyword. Custom
keywords which attempt to parse operator syntax may be able to use these. One
such module is Syntax::Keyword::Match.