1 files changed, 167 insertions, 0 deletions
diff --git a/tex/context/base/mkiv/lang-url.mkxl b/tex/context/base/mkiv/lang-url.mkxl
new file mode 100644
index 000000000..bb51f838a
--- /dev/null
+++ b/tex/context/base/mkiv/lang-url.mkxl
@@ -0,0 +1,167 @@
+%D \module
+%D   [       file=lang-url,
+%D        version=2008.01.22, % used to be lang-mis
+%D          title=\CONTEXT\ Language Macros,
+%D       subtitle=Language Options,
+%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.
+
+\registerctxluafile{lang-url}{}
+
+\unprotect
+
+%D Traditionally this code is in the language namespace as
+%D hyphenation relates to languages.
+
+%D \macros
+%D   {hyphenatedurl}
+%D
+%D For those who want to put full \URL's in a text, we offer
+%D
+%D \startbuffer
+%D \hyphenatedurl{http://optimist.optimist/optimist/optimist.optimist#optimist}
+%D \stopbuffer
+%D
+%D \typebuffer
+%D
+%D which breaks at the appropriate places. Watch the \type{#}
+%D hack.
+%D
+%D When passed as argument, like in \type {\goto}, one needs
+%D to substitute a \type {\\} for each \type{#}.
+%D
+%D \startbuffer
+%D \hyphenatedurl{http://this.is.a.rather/strange/reference#indeed}
+%D \stopbuffer
+%D
+%D \typebuffer
+
+\newtoks\everyhyphenatedurl
+
+\appendtoks
+    \resetfontfeature
+    \resetcharacterspacing
+    %
+    \enforced\let\&\letterampersand
+    \enforced\let\#\letterhash
+    \enforced\let\~\lettertilde
+    \enforced\let\\\letterbackslash
+    \enforced\let\$\letterdollar
+    \enforced\let\^\letterhat
+    \enforced\let\_\letterunderscore
+    \enforced\let\{\letterleftbrace
+    \enforced\let\}\letterrightbrace
+    \enforced\let\|\letterbar
+    \enforced\let~=\lettertilde
+    \enforced\let|=\letterbar
+    \enforced\let\Ux\eUx
+\to \everyhyphenatedurl
+
+\let\hyphenatedurlseparator    \empty % \periodcentered
+\let\hyphenatedurldiscretionary\empty
+
+\setnewconstant\hyphenatedurllefthyphenmin \plusthree
+\setnewconstant\hyphenatedurlrighthyphenmin\plusthree
+
+\def\lang_url_more{\penalty\plustenthousand\hskip\scratchskipone\penalty\plustenthousand}
+\def\lang_url_less{\penalty\plustenthousand\hskip\scratchskiptwo\penalty\plustenthousand}
+\def\lang_url_trac{\penalty\plustenthousand\hsmash{\darkred\vl}\penalty\plustenthousand}
+
+\def\lang_url_a#1{\lang_url_more\char#1\lang_url_show\discretionary{}{\hyphenatedurlseparator}{}}
+\def\lang_url_b#1{\lang_url_more\discretionary{\hyphenatedurlseparator}{}{}\lang_url_show\char#1\relax}
+\def\lang_url_d  {\lang_url_more\discretionary{\lang_url_show}{\lang_url_show}{\lang_url_show}}
+\def\lang_url_l#1{\lang_url_less\char#1\relax}
+\def\lang_url_c#1{\lang_url_more\char#1\relax}
+\def\lang_url_L#1{\lang_url_less\char#1\relax}
+\def\lang_url_C#1{\lang_url_more\char#1\relax}
+
+\permanent\protected\def\showhyphenatedurlbreaks % for old times sake
+  {\let\lang_url_show\lang_url_trac}
+
+\installtextracker
+  {languages.url}
+  {\let\lang_url_show\lang_url_trac}
+  {\let\lang_url_show\relax}
+
+\let\lang_url_show\relax
+
+\permanent\protected\def\sethyphenatedurlnormal#1{\clf_sethyphenatedurlcharacters{#1}{\v!normal}}
+\permanent\protected\def\sethyphenatedurlbefore#1{\clf_sethyphenatedurlcharacters{#1}{\v!before}}
+\permanent\protected\def\sethyphenatedurlafter #1{\clf_sethyphenatedurlcharacters{#1}{\v!after }}
+
+% \sethyphenatedurlafter{ABCDEF}
+
+\permanent\protected\def\hyphenatedurl#1%
+  {\dontleavehmode
+   \begingroup
+   \the\everyhyphenatedurl
+   \normallanguage\zerocount % \nohyphens in mkiv
+   \scratchskipone\zeropoint\s!plus\dimexpr\emwidth/12\s!minus\dimexpr\emwidth/24\relax % 1.00pt @ 12pt
+   \scratchskiptwo\zeropoint\s!plus\dimexpr\emwidth/48\s!minus\dimexpr\emwidth/96\relax % 0.25pt @ 12pt
+   \unprotect
+   \normalexpanded{\noexpand\clf_hyphenatedurl
+     {\noexpand\detokenize{#1}}%
+     \hyphenatedurllefthyphenmin
+     \hyphenatedurlrighthyphenmin
+     {\hyphenatedurldiscretionary}%
+   }%
+   \protect
+   \endgroup}
+
+%D \macros
+%D   {hyphenatedfilename}
+%D
+%D For the moment we treat filenames in a similar way,
+%D
+%D \starttyping
+%D \hyphenatedfilename{here/there/filename.suffix}
+%D \stoptyping
+
+\ifx\hyphenatedfilename\undefined \aliased\let\hyphenatedfilename\hyphenatedurl \fi
+
+% \def\test#1%
+%   {\dontleavehmode
+%    \begingroup
+%    \tttf
+%    \hyphenatedurl {%
+%      \letterampersand #1\letterampersand #1\letterampersand #1\letterampersand #1\letterampersand
+%      \letterhash      #1\letterhash      #1\letterpercent   #1\letterslash     #1\letterampersand
+%    }%
+%    \endgroup}
+
+% \dorecurse{100}{\test{a} \test{ab} \test{abc} \test{abcd} \test{abcde} \test{abcdef}}
+
+\protect \endinput
+
+% \setuppapersize[A7]
+%
+% \protected\def\WhateverA#1%
+%   {\dontleavehmode
+%    \begingroup
+%    \prehyphenchar"B7\relax
+%    \setbox\scratchbox\hbox{\tttf#1}%
+%    \prehyphenchar`-\relax
+%    \unhbox\scratchbox
+%    \endgroup}
+%
+% \protected\def\WhateverB#1%
+%   {\dontleavehmode
+%    \begingroup
+%    \tttf
+%    \prehyphenchar\minusone
+%  % \localrightbox{\llap{_}}%
+%    \localrightbox{\llap{\smash{\lower1.5ex\hbox{\char"2192}}}}%
+%    \setbox\scratchbox\hbox{#1}%
+%    \prehyphenchar`-\relax
+%    \unhbox\scratchbox
+%    \endgroup}
+%
+% \begingroup \hsize1cm
+%   \WhateverA{thisisaboringandverylongcommand}\par
+%   \WhateverB{thisisaboringandverylongcommand}\par
+% \endgroup