blob: 2e9efde1f3c8dccb640d8bae042419ee2d6be4be (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
%D \module
%D [ file=node-par,
%D version=2008.09.30,
%D title=\CONTEXT\ Node Macros,
%D subtitle=Paragraph Building,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\writestatus{loading}{ConTeXt Node Macros / Paragraph Building}
%D This is very experimental, undocumented, subjected to changes, etc. just as
%D the underlying interfaces.
% \enableparbuilders
%
% \startparbuilder[default]
% \input tufte \par
% \startparbuilder[oneline]
% \input tufte \par
% \stopparbuilder
% \input tufte \par
% \stopparbuilder
\unprotect
\registerctxluafile{node-par}{1.001}
\definesystemattribute[parbuilder][public]
% todo auto-enable
% management (enable/disable) is global and will move to lua
\newcount\nofparbuilders
\unexpanded\def\defineparbuilder[#1]%
{\global\advance\nofparbuilders\plusone
\ctxlua{builders.paragraphs.constructors.register("#1",\number\nofparbuilders)}%
\setxvalue{\??ng:#1}{\attribute\parbuilderattribute\nofparbuilders}}
\unexpanded\def\startparbuilder[#1]%
{\edef\@@currentparbuilder{\number\attribute\parbuilderattribute}%
\globalpushmacro\@@currentparbuilder
\getvalue{\??ng:#1}%
\checkparbuilders}
\unexpanded\def\stopparbuilder
{\ifhmode\par\fi
\globalpopmacro\@@currentparbuilder
\attribute\parbuilderattribute\@@currentparbuilder\relax
\checkparbuilders}
\def\setmainparbuilder[#1]%
{\ctxlua{builders.paragraphs.constructors.set("#1")}}
% no high level interface, after all implementing a linebreaker is not something that
% the average user will do
\defineparbuilder[default] % just for testing
\defineparbuilder[oneline] % just for testing
\defineparbuilder[basic] % just for testing
\def\enableparbuilders {\ctxlua{builders.paragraphs.constructors.enable ()}}
\def\disableparbuilders{\ctxlua{builders.paragraphs.constructors.disable()}}
\def\checkparbuilders % can be more efficient as we don't want to do this to often
{\ifcase\attribute\parbuilderattribute
\disableparbuilders
\else
\enableparbuilders
\fi}
\protect \endinput
|
