String comparison: Difference between revisions
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(→{{header|Raku}}: beware to normalization by default) |
(→{{header|Raku}}: add a String comparison example for the normalization trap) |
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say "\c[KELVIN SIGN]".uniname; |
say "\c[KELVIN SIGN]".uniname; |
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# => LATIN CAPITAL LETTER K |
# => LATIN CAPITAL LETTER K |
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my $kelvin = "\c[KELVIN SIGN]"; |
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my $k = "\c[LATIN CAPITAL LETTER K]"; |
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say ($kelvin eq $k); # True, lexically equal |
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say ($kelvin eqv $k); # True, generically equal |
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say ($kelvin === $k); # True, identical objects |
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</syntaxhighlight> |
</syntaxhighlight> |
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In most programming language the previous two objects wouldn't be equivalent but in Raku there are since normalization is applied by default automatically and can't be disabled. |
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It's officially identified as a common trap for string handling<ref>https://docs.raku.org/language/traps#All_text_is_normalized_by_default</ref>. |
It's officially identified as a common trap for string handling<ref>https://docs.raku.org/language/traps#All_text_is_normalized_by_default</ref>. |
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