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Re: [Groff] MM's nested lists: AL inside BVL
From: |
Anton Shepelev |
Subject: |
Re: [Groff] MM's nested lists: AL inside BVL |
Date: |
Mon, 28 Jun 2010 19:20:49 +0400 |
Ted Harding:
> That -- the asymmetry -- is also my feeling
> exactly! However, I think the increment/decrement
> operation is best left alone! Consider:
So you show a way to make Groff do what you want it
to do, but my mind either inattentive or lazy and
therefore prone to human mistakes, which makes me
incline to "Safe" programming languages (Pascal in
preference to C, for example). So I might even write
some "Safe" macros if I found myself bumping too
often into this kind of error:
\" Common wrapper for safe assign, increment
\" and decrement operations, not to be used
\" directly.
.de cAS
. nr \\$1 \\$2(\\$3)
..
\" Safe assign
.de NR
. cAS \\$1 "" \\$2
..
.
.\" Decrement register $1 by value $2
.de DR
. cAS \\$1 - \\$2
.
.\" Increment register $1 by value $2
..
.de IR
. cAS \\$1 + \\$2
..
But where to stop? I might end up with a wrapper
around groff...
> and, later: "When interpolated, a number register
> is converted into decimal (default), decimal with
> leading zeros, lower-case Roman, upper-case Roman,
> lower- case sequential alphabetic, or upper-case
> sequential alphabetic, according to the format
> specified by 'af'."
I too thought about .af when saw it in Tadziu's
example. My idea was to introduce a format that
would expand into a value in parentheses, but it
would be adding another dimenstion to formats, not
just another format, which is wrong.
> And, while you're at it, you might as well always
> bracket it since the "+" prefix will still work as
> before with the brackets,...
So all one needs to be happy is just to be aware of
the feature and do some extra writing to take it
into account.
Anton
- [Groff] MM's nested lists: AL inside BVL, Anton Shepelev, 2010/06/23
- Re: [Groff] MM's nested lists: AL inside BVL, Tadziu Hoffmann, 2010/06/24
- Re: [Groff] MM's nested lists: AL inside BVL, Werner LEMBERG, 2010/06/24
- Re: [Groff] MM's nested lists: AL inside BVL, Anton Shepelev, 2010/06/24
- Re: [Groff] MM's nested lists: AL inside BVL, Werner LEMBERG, 2010/06/24
- Re: [Groff] MM's nested lists: AL inside BVL, Ted Harding, 2010/06/24
- Re: [Groff] MM's nested lists: AL inside BVL, Tadziu Hoffmann, 2010/06/27
- Re: [Groff] MM's nested lists: AL inside BVL, Ted Harding, 2010/06/27
- Re: [Groff] MM's nested lists: AL inside BVL, Anton Shepelev, 2010/06/27
- Re: [Groff] MM's nested lists: AL inside BVL, Ted Harding, 2010/06/27
- Re: [Groff] MM's nested lists: AL inside BVL,
Anton Shepelev <=
- Re: [Groff] MM's nested lists: AL inside BVL, Ted Harding, 2010/06/29