Khaled Hosny wrote:
On Fri, Jan 08, 2010 at 09:27:37AM -0700, Tad Ashlock wrote:
==========================
\startluacode
function move_end_punctuation (text, punc, cmd_start, cmd_mid, cmd_end)
context(cmd_start .. text .. cmd_mid)
if string.find('.,!?', punc, 1, true) then
context(punc .. cmd_end)
else
context(cmd_end .. ' ' .. punc)
end
end
\stopluacode
\def\Var#1#2{\ctxlua{move_end_punctuation([==[#1]==],[==[#2]==],
'\\quote{\\type{','}','}')}}
\starttext
This is \Var{var_name}, a variable.
\stoptext
==========================
What about:
\def\Var#1#2{'\type{#1}%
\directlua{
if "#2" == "," then
tex.sprint("#2'")
else
tex.sprint("'#2")
end}}
\Var{555}, hello \Var{666}. \Var{666}\par
Thank you, Khaled, for the response. This solution works as is. But it
has a problem as soon as you want to put double quotes around the
variable name.
Simply replacing the single quotes with double quotes in your solution
doesn't produce open- and close-quotes pairs:
==================
\def\Var#1#2{"\type{#1}%
\directlua{
if "#2" == "," then
tex.sprint('#2"')
else
tex.sprint('"#2')
end}}
==================
In order to do that, you need (I think) to use the \quotation{} command:
==================
\def\Var#1#2{\quotation{\type{#1}%
\directlua{
if "#2" == "," then
tex.sprint("#2}")
else
tex.sprint("}#2")
end}}
==================
resulting in:
==================
! Too many }'s.
l.7 end}}
==================
I also tried \bgroup...\egroup:
==================
\def\Var#1#2{\quotation\bgroup\type{#1}%
\directlua{
if "#2" == "," then
tex.sprint("#2\egroup ")
else
tex.sprint("\egroup #2")
end}}
==================
giving:
==================
! Missing } inserted.
<inserted text>
}
<to be read again>
\normalend
l.18 \stoptext
==================
Thanks again!
Tad
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