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Re: A replacement for Info
From: |
Thien-Thi Nguyen |
Subject: |
Re: A replacement for Info |
Date: |
Thu, 29 Nov 2012 19:08:28 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) |
() Patrice Dumas <address@hidden>
() Wed, 15 Aug 2012 00:04:47 +0200
> We mustn't forget the all-important address@hidden [froth
> froth] !!! I have been waiting a long time for that to be
> runtime-tweakable...
That is to be found in the tree, as it affects all the Texinfo coming
after the @-command. Some @-command affect the whole document, so
would be available right at the beginning of the rendering.
> This points to another subtlety of texinfo: IIUC the lifetime of a
> variable or setting (or macro) is indefinite. That is, if you
> address@hidden a variable in 1.3.5.7 (a subsubsection in the first
> chapter), that value will hold for all subsequent nodes (even 2.1,
> i.e., higher level), until EOF or another address@hidden changes it. This
> means we need to record where such settings are done to know their
> "span of influence".
It is worse than that. User defined macros and @value expansion may
happen out of a balanced tree. So these 2 constructs are expanded
when constructing a proper tree in texi2any. It should be possible
to keep a 'mark' where they appeared (it is on the TODO list), but
they cannot be kept in the tree like the other commands are, since
the tree would not be a tree anymore. If a generated sexpr tree is
generated through makeinfo/texi2any, my idea is that the tree would
have user defined macros and @value already expanded (macros
definitions and @set would be in the tree, though).
I'm reviving this thread to point out some EXPERIMENTAL code that
hackers (familiar w/ Guile) might find useful for trying out ideas.
Here's the announcement to the guile-sources list:
http://lists.gnu.org/archive/html/guile-sources/2012-11/msg00007.html
Unfortunately IXIN 1.0 does not propose any solution to the "scope
dishonoring" nature of texinfo (c.f. "it's worse than that" above).
Maybe there's a way to specify that info either in the ‘meta’ section
(which already contains a good bit of "global" settings) or along w/
each entry in the ‘index’ section. Hmmm. Any thoughts?
--
Thien-Thi Nguyen ..................................... GPG key: 4C807502
. NB: ttn at glug dot org is not me .
. (and has not been since 2007 or so) .
. ACCEPT NO SUBSTITUTES .
........... please send technical questions to mailing lists ...........
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- Re: A replacement for Info,
Thien-Thi Nguyen <=