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Re: Greek and Russian in Groff

From: G. Branden Robinson
Subject: Re: Greek and Russian in Groff
Date: Sat, 25 Mar 2023 04:27:15 -0500


At 2023-03-25T03:04:32-0500, G. Branden Robinson wrote:
> 2.  Should we test more characters?  We could have an `if` request for
>     each one of interest, but that would rapidly become lengthy.  We
>     might consider an extension to the 'c' conditional expression
>     predicate such that it will test each ordinary or special character
>     in its argument in turn, returning true only if _all_ characters are
>     resolvable.  This would make checking a large set of glyphs less
>     garrulous.  (At present, it simply ignores all characters after the
>     first, while still recognizing special character escape sequence
>     syntax.)

I need to correct that last statement; adding characters to a 'c'
conditional expression predicate causes the test to fail, always.

$ groff -z
.if c ab .tm a and b are defined
.if c a .tm a is defined
a is defined
.if c \[-] .tm minus is defined
minus is defined
.if c \[-]a .tm minus and a are defined


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