Re: YAML's No in Perl

Perl evaluates 0, undef and '' (empty string) as false in scalar context. It evaluates () (empty list) as false in list context. Any other string evaluates as true. I don't see what's wrong with that; if "No" evaluates false, what about "NO", "no", "N" ? What about "Non", "Niet", "Nein" and "La'" ?

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Re^2: YAML's No in Perl by adrianh (Chancellor) on Mar 13, 2006 at 12:22 UTC
I don't see what's wrong with that; if "No" evaluates false, what about "NO", "no", "N" ? What about "Non", "Niet", "Nein" and "La'" ? In YAML it can be a representation of a boolean value - see Boolean Language-Independent Type for YAML™ Version 1.1 for details. So it can make sense for a YAML parser to translate this to a false value in Perl land.	[reply]
Re^3: YAML's No in Perl by wazoox (Prior) on Mar 13, 2006 at 16:17 UTC
I see. It could be then a nice feature to add to the YAML module. After all, it's only an alpha release : latest is 0.58.	[reply]
Re^4: YAML's No in Perl by diotalevi (Canon) on Mar 13, 2006 at 19:12 UTC
CPAN version numbers and their relationship to "1" have nothing to do with alpha status. A few authors adopt the <1==alpha\|beta meaning but not most of them. ⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊	[reply]