%D \module
%D   [       file=typo-brk,
%D        version=2009.03.27, % code moved from core-spa.mkiv
%D          title=\CONTEXT\ Typesetting Macros,
%D       subtitle=Breakpoints,
%D         author=Hans Hagen,
%D           date=\currentdate,
%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%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 Typesetting Macros / Breakpoints}

\unprotect

% hm, we cannot prebuild lists, font dependent
%
% -- type nleft nright language left right middle
%
% -- we might eventually stick to only method 5

\registerctxluafile{typo-brk}{autosuffix}

\definesystemattribute[breakpoint][public,global]

% see below: \exhyphenchar \minusone % we use a different order than base tex, so we really need this

% \definebreakpoints [test]
%
% \definebreakpoint [test][:][nleft=3,nright=3,type=1]
% \definebreakpoint [test][/][nleft=3,nright=3,type=1]
%
% {\setbreakpoints[test]\hsize1mm\nohyphens x boundary:boundary/boundary\par}
% {\setbreakpoints[test]\hsize1mm x boundary:boundary/boundary\par} % still hyphenated

\permanent\tolerant\protected\def\definebreakpoints[#1]%
  {\clf_definebreakpoints{#1}} % todo: public implementor

\permanent\tolerant\protected\def\definebreakpoint[#1]#*[#2]#*[#S#3]% name char settings
  {\begingroup
   \getdummyparameters
     [\c!type=\plusone,\c!nleft=\plusthree,\c!nright=\plusthree,%
      \s!language=,\c!left=,\c!right=,\c!middle=,\c!range=\v!no,%
      #3]%
   \clf_definebreakpoint
     {#1}%
     {#2}%
     {\reallanguagetag{\directdummyparameter\s!language}}%
     {% maybe deal with #3 at the lua end
          type \directdummyparameter\c!type
         nleft \directdummyparameter\c!nleft
        nright \directdummyparameter\c!nright
         right {\directdummyparameter\c!right}%
          left {\directdummyparameter\c!left}%
        middle {\directdummyparameter\c!middle}%
        range  {\directdummyparameter\c!range}%
     }%
   \relax
   \endgroup}

\permanent\protected\def\setbreakpoints[#1]%
  {%\exhyphenchar\minusone % we now use collapsing so ...
   \clf_setbreakpoints{#1}}

\permanent\protected\def\resetbreakpoints
  {%\exhyphenchar\hyphenasciicode % 2020.03.05 / we now use collapsing so ...
   \c_attr_breakpoint\attributeunsetvalue}

\definebreakpoints[compound]

% 1: simple break
% 6: simple break but skip same

\definebreakpoint [compound] [+] [\c!nleft=3,\c!nright=3,\c!type=1]                 % middle=+,left=,right=
%definebreakpoint [compound] [-] [\c!nleft=3,\c!nright=3,\c!type=1,\c!range=\v!yes] % middle=+,left=,right=
\definebreakpoint [compound] [-] [\c!nleft=3,\c!nright=3,\c!type=6,\c!range=\v!yes] % middle=+,left=,right=
\definebreakpoint [compound] [/] [\c!nleft=3,\c!nright=3,\c!type=1]                 % middle=+,left=,right=
\definebreakpoint [compound] [(] [\c!nleft=3,\c!nright=3,\c!type=2]                 % type=5,middle=(,left=(-,right=
\definebreakpoint [compound] [)] [\c!nleft=3,\c!nright=3,\c!type=3]                 % type=5,middle=),left=,right=-)

\aliased\let\installbreakpoint\definebreakpoint % for a while

% \start \hsize 1.5cm \setbreakpoints[compound]
%     \definebreakpoint [compound] [-] [nleft=3,nright=3,type=5,left=,right={-},middle={-}]
%     \definebreakpoint [compound] [(] [nleft=3,nright=3,type=5,left=,right={(-},middle={(}]
%     \definebreakpoint [compound] [)] [nleft=3,nright=3,type=5,left={-)},right=,middle={)}]
%     composed-word\par composed(word)\par
% \stop

% \mainlanguage[czech]
% \definebreakpoint [compound] [-] [language=cs,nleft=3,nright=3,type=4]
% \setbreakpoints[compound]
% \start \hsize 1mm test-test \par \stop

%D Maybe some day default:
%
% \setbreakpoints[compound]

\protect \endinput


