Re: Comments on \defineshortcut

["Giuseppe Bilotta" <oblomov@freemail.it>]

> At 01:16 PM 2/1/01 +0100, Giuseppe Bilotta wrote:
> >Hello, I'm playing with shortcuts now, and I found some limitations on the
> >current implementation.
> >
> >It's impossible to re-define shortcuts other than <>; the reason is that,
> once I
> >issue
> >
> >\defineshortcut [()][a][style=\overstrike]
> >
> >I cannot issue
> >
> >\defineshortcut [()][b][style=\underline]
> >
> >later because an "undefined control sequence" error is issued.
>
> \def\dodefineshortcut[#1][#2][#3]%
>   {\ifthirdargument
>      \ConvertConstantAfter\doifelse{#1}{}
>        {\dododefineshortcut[<>][#2][#3]}
>        {\dododefineshortcut[#1][#2][#3]}%
>    \else\ifsecondargument
>      \dododefineshortcut[<>][#1][#2]%
>    \else
>      \dododefineshortcut[<>][][#1]%
>    \fi\fi}
>

Will patch, recreate and test ASAP.

>
> >Second problem: ligs fail in some cases (if I \defineshortcut
> >[--][o][style\overstrike] then the following lines misses a few beats:
> >
> >it seems -o:to work- well--does it?---really?
>
> see it this way: in --- the first - picks up everything uuntil the next -
> so the third - triggers a new - which cannot find its matching -
>

even the -- lig is lost, anyway. But never mind:

> >Third problem: math fails too:
> >>
> >$(a+b)/(a-c-d)_{a+b}$
> >with -- and ++ defined as shortcuts fail (not on parenthesis, if I make those
> >active too; depends on the fact that parenthesis are delimiters in math
> mode?)
>
> Hm, this works ok here, unless of course you redefine + a few times since
> then the last meaning is used.
>
> \defineshortcut[++]  saves the old meaning which is +
> \defineshortcut[++]  saves th eole meaning which is shortcut
>
> and in math mode the second one is used which means that the first shortcut
> is invokes.
>

Maybe then saving should check if the old meaning was already a shortcut ... if
this is doable.

> PS. Actually i implemented shortcuts as a kind of joke.

Such a pity it's only a joke :-). They are very good for fast typing ...

Thanks very much

Giuseppe Bilotta

Using Microsoft products is like
having sex without condoms---but
much less pleasurable