[tex-live] Patch to updmap.pl
jschrod at acm.org
Tue Sep 4 11:19:34 CEST 2007
Zdenek Wagner wrote:
> If we do want to check against either an empty string or undefined,
> it's even simpler to write
> $mode = "URWkb" unless $mode;
This also checks against the value 0, since 0 is false as well.
(But not against "0E0", even though that evaluates to 0 in numeric
contexts.) The DWIM feature of Perl is not always what one wants.
Therefore I recommend to use the boolean meaning of Perl variables
only if they are really boolean, and make the comparison intention
explicitly clear in all other cases.
Joachim Schrod Email: jschrod at acm.org
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