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%D \module
%D [ file=strc-lnt,
%D version=2002.05.10,
%D title=\CONTEXT\ Structure Macros,
%D subtitle=Line Notes,
%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 Structure Macros / Line Notes}
%D This module loads on top of the footnote and line numbering macros.
\unprotect
\newcount\noflinenotes \newif\iftracelinenotes % will be tracker
\def\dohandlelinenote#1#2#3%
{\bgroup
\def\linenotelinenumber##1{\inlinerange[#2]}% ##1 == order
\setupnote[#1][\c!numbercommand=\linenotelinenumber,\c!textcommand=\gobbleoneargument]% todo: deep hook
\getvalue{\??vn:ln:#1}{#3}%
\egroup}
\def\dotracedlinenote#1%
{\iftracelinenotes
\hbox to \zeropoint
{\forgetall
\hsize\zeropoint
\hss
\vbox to \strutheight{\llap{\red\infofont\setstrut\the\noflinenotes}\vss}%
{\color[blue]{\vl}}%
\vbox to \strutheight{\rlap{\red\infofont\setstrut#1}\vss}%
\hss}%
\prewordbreak
\fi}
\def\dolinenote#1#2%
{\global\advance\noflinenotes\plusone
\dohandlelinenote{#1}{\the\noflinenotes}{#2}%
\dotracedlinenote\empty
\normalexpanded{\someline[\the\noflinenotes]}}
\def\dostartlinenote#1[#2]#3%
{\global\advance\noflinenotes\plusone
\dohandlelinenote{#1}{#2}{#3}%
\dotracedlinenote{#2}%
\startline[#2]}
\def\dostoplinenote#1[#2]%
{\stopline[#2]}
\unexpanded\def\definelinenote
{\dotripleempty\dodefinelinenote}
\def\dodefinelinenote[#1][#2][#3]%
{\dodefinenote[#1][#2][#3]% do as we need to test for arguments
\expandafter\let\csname\??vn:ln:#1\expandafter\endcsname\csname#1\endcsname % use copy command
\setuvalue {#1}{\dolinenote {#1}}%
\setuvalue{\e!start#1}{\dostartlinenote{#1}}%
\setuvalue{\e!stop #1}{\dostoplinenote {#1}}}
\let\setuplinenote\setupnote
% We predefine one, namely \type {\linenote} cum suis.
\definelinenote[\v!linenote]
% beware: line numbers are added later on so grouping setups is a bad idea
%
% \startbuffer[test]
% \startlinenumbering[100]
% test \linenote {oeps 1} test test test test test test
% test \startlinenote [well] {oeps X} test test test test test test
% test \linenote {oeps 2} test test test test test test
% test \linenote {oeps 3} test test test test test test
% test \linenote {oeps 4} test test test test test test
% test \linenote {oeps 5} test test test test test test
% test \stoplinenote [well] test test test test test test
% \stoplinenumbering
% \stopbuffer
%
% \typebuffer[test] \getbuffer[test] \page
%
% \startbuffer[setup]
% \setuplinenumbering
% [align=flushleft]
% \stopbuffer
%
% \typebuffer[setup] \getbuffer[setup,test] \page
%
% \startbuffer[setup]
% \setuplinenumbering
% [width=4em,
% distance=1em,
% align=flushright]
% \stopbuffer
%
% \typebuffer[setup] \getbuffer[setup,test] \page
%
% \startbuffer[setup]
% \setuplinenumbering
% [width=4em,
% align=flushleft]
% \stopbuffer
%
% \typebuffer[setup] \getbuffer[setup,test] \page
%
% \startbuffer[setup]
% \setuplinenumbering
% [width=2em,
% distance=.5em,
% align=middle]
% \stopbuffer
%
% \typebuffer[setup] \getbuffer[setup,test] \page
%
% \startbuffer[setup]
% \setuplinenumbering
% [conversion=romannumerals,
% start=1,
% step=1,
% location=text,
% style=slanted,
% color=blue,
% width=1.5em]
% \stopbuffer
%
% \typebuffer[setup] \getbuffer[setup] \startnarrower\getbuffer[test]\stopnarrower \page
%
% \startbuffer[setup]
% \setuplinenumbering
% [width=4em,
% left=--,
% right=--,
% align=middle]
% \stopbuffer
%
% \typebuffer[setup] \getbuffer[setup,test] \page
%
% \startbuffer[setup-1]
% \setuplinenumbering
% [style=\bfxx,
% command=\WatchThis]
% \stopbuffer
%
% \startbuffer[setup-2]
% \def\WatchThis#1%
% {\ifodd\linenumber
% \definecolor[linecolor][red]%
% \else
% \definecolor[linecolor][green]%
% \fi
% \inframed
% [offset=1pt,frame=off,background=color,backgroundcolor=linecolor]
% {#1}}
% \stopbuffer
%
% \typebuffer[setup-1,setup-2] \getbuffer[setup-1,setup-2,test] \page
%
% \startbuffer[setup-1]
% \setuplinenumbering
% [location=inright,
% style=\bfxx,
% command=\WatchThis]
% \stopbuffer
%
% \typebuffer[setup-1] \getbuffer[setup-1,setup-2,test] \page
\protect \endinput
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