ietf-mta-filters
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Re: NULL vs. ""

2005-06-01 07:54:02

On Mon, 2005-05-30 at 09:21 -0700, Ned Freed wrote:
if anyof (header :is "Cc" "", not exists "Cc")

This is actually clearer to read IMO, and is probably how I would code it if
I ever wanted such a test.

Indeed.  And so why don't we wrap up this too-long discussion this way?:
1. *Document* that string comparisons against headers MUST NOT match absent headers. 2. *Document* that the preferred way to test for a header that is either empty or absent is as Ned wrote above.
3. Move on.

Barry

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Barry Leiba, Pervasive Computing Technology  
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