On Wed, May 21, 2014 at 4:59 AM, aparsloe <[email protected]> wrote:
>
> On 21/05/2014 10:14 a.m., stefano franchi wrote:
>
>> Dear all,
>>
>> Prannoy is delving into tex4ht to tweak it to our purposes (quite
>> successfully so far). In the process, he is also trying to understand
>> better tex4ht's rather complex LaTeX code and grasp the logic of the XML
>> constructions it carries out.
>> The problem is that several Latex macros used are quite obscure (and
>> undocumented, as far as I can tell). I append a code fragment below as an
>> example.
>>
>> The general question I'd like to ask is the following though:
>>
>> * How would you go about finding the definition of a (La)TeX command
>> (length, etc.) when you don't know where it may come from?
>>
>> For instance, for "\BegEnd:D" in the code fragment below, I tried
>> grepping the whole tree (which includes tex4ht sources), looking in
>> existing documentation, and compulsing the usual references (TeX book,
>> LTC, etc). To no avail.
>>
>> Do any of the LaTeX gurus around have any suggestions? Am I missing
>> something obvious?
>>
>>
>> Cheers,
>>
>> Stefano
>>
>> --------------Code fragment from tex4ht's definition of a list (first
>> part only) ----
>>
>> \ConfigureList{description}%
>> {\EndP
>> \bgroup
>> \HCode{<text:list
>> text:style-name="description\if@rl-rtl\fi"
>> text:name="description"\Hnewline>}%
>> \PushMacro\end:itm
>> \global\let\end:itm=\empty
>> \HTML:PAR{dd|<cond rtl class|>}{dd|<cond rtl class|>}%
>> \gHAdvance\BegEnd:D by 1
>> }
>>
>> --
>> __________________________________________________
>> Stefano Franchi
>>
> This is almost certainly wrong, judging by the code around it that you
> provide above, but the ":D" notation occurs in the expl3 language of LaTeX3
> (as do a host of other "argument specifiers" like ":N", ":n" etc.). See the
> document "interface3.pdf", p.1 of the text, that is available after
> installing the l3kernel bundle.
>
>
Hi Andrew,
thank you for the pointer to the expl3 language.Things are starting to get
clearer! I had assumed that that the use of ":D" were similar to the
ubiquitous "@" for LaTeX's internal commands. I now see I was completely
off.
Thanks,
S.
--
__________________________________________________
Stefano Franchi
Associate Research Professor
Department of Hispanic Studies Ph: +1 (979) 845-2125
Texas A&M University Fax: +1 (979) 845-6421
College Station, Texas, USA
[email protected]
http://stefano.cleinias.org
