[Remind-Fans] SPECIAL, trigdate(), and expression pasting

[Ian! D. Allen]

This one-line reminder file "r" gives an error message because trigdate()
is not set and the subtraction has mixed types:

REM SPECIAL [ "COLOR 66 66 66 " + iif( (trigdate()-today()) == 0, "FOO", "BAR" ) ]

$ remind -v -dx r
trigdate() => 0
today() => 2016-06-12
0 - 2016-06-12 => Type mismatch
r(1): REM SPECIAL [ "COLOR 66 66 66 " + iif( (trigdate()-today()) == 0, "FOO", "BAR" ) ]
`-': Type mismatch
       Type mismatch
No reminders.

This equivalent one-line reminder file "r" works fine:

REM SPECIAL COLOR 66 66 66 [ iif( (trigdate()-today()) == 0, "FOO", "BAR" ) ]

$ remind -v -dx r
trigdate() => 2016-06-12
today() => 2016-06-12
2016-06-12 - 2016-06-12 => 0
0 == 0 => 1
iif(1, "FOO", "BAR") => "FOO"
FOO

I would like both files to behave nicely and not issue error messages.

In the first example above, I think Remind needs to always set trigdate()
when evaluating SPECIAL lines, at least in cases where an expression is
being used.

-- 
| Ian! D. Allen, MMath  -  idallen at idallen.ca  -  Ottawa, Ontario, Canada
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