[EMAIL PROTECTED] writes:
> >> [EMAIL PROTECTED] writes:
> >>> > * Make {} represent real lists in markup, and transform \markup {
> >>> > a b \bold { c d } e } in
> >>> >
> >>> > \markup \formatline { a b \bold c \bold d e }
> >>>
> >>> I'm starting to understand a couple of things about markups, I should
> >>> try that.
> >>
> >> Cool; don't hesitate to ask questions; do you need a more precise
> >> description than what's written here. I already have some ideas of
> >> how it could be implemented.
> >
> > Yes, actually a description is welcome! There is a long week end
> > coming, and thus some time to work on that.
>
> Hello Han-Wen,
>
> Could you explain what is wanted in these markup changes?
The target is to change markup syntax, so
<< >>
can be dropped, and
{ }
represent actual lists, instead of a hack which expands to \line. Most
of the work will be in rewriting the parser syntax, and a little
scheme trickery to rearrange lists of markups.
The idea is
1. to define syntax like
Markup_list:
'{' Markup_list_body '}'
;
Markup_list_body:
/* empty */
| Markup_list_body Markup
;
Markup_head_1_item
MARKUP_HEAD_MARKUP0
| MARKUP_HEAD_SCM0_MARKUP1 embedded_scm
| MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm
;
Markup_head_1_list:
Markup_head_1_item
| Markup_head_1_list Markup_head_1_item
;
Markup:
markup_head_1_list Markup_list
| MARKUP_HEAD_MARKUP0 Markup
| MARKUP_HEAD_SCM0_MARKUP1 embedded_scm Markup
| <..etc, normal markup syntax follows..>
;
2. Perform some trickery to convert
\bold \italic { foo bar }
into
{ \bold \italic foo \bold \italic bar }
i.e. map the Markup_head_1_item over the elements of a list,
3. To implicitly add
\line
to a \markup { } definition.
4. In the end,
\markup { \bold \italic { foo bar } }
would be internally converted to
\line { \bold \italic foo \bold \italic bar }
This makes it possible to drop << and >> from the markup syntax.
5. If possible, it would be nice to flatten lists internally as well,
so
\markup { \column { foo bar \bold { baz bla } }
gets translated to
\column { \bold foo \bold bar \bold baz \bold bla }
--
Han-Wen Nienhuys | [EMAIL PROTECTED] | http://www.xs4all.nl/~hanwen
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