1 files changed, 127 insertions, 0 deletions
diff --git a/tex/context/modules/mkiv/m-translate.mkiv b/tex/context/modules/mkiv/m-translate.mkiv
new file mode 100644
index 000000000..2e6cbe950
--- /dev/null
+++ b/tex/context/modules/mkiv/m-translate.mkiv
@@ -0,0 +1,127 @@
+%D \module
+%D   [       file=m-translate,
+%D        version=2008.10.09,
+%D          title=\CONTEXT\ Modules,
+%D       subtitle=Translations,
+%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.
+
+%D We can make this module more clever (wildcards and such) but since
+%D it's only a demo we stick to the simple case for now. After all, it's
+%D better to fix your source.
+
+\startluacode
+    local translators = { }
+
+    moduledata.translators = translators
+
+    local compiled, list = nil, nil
+
+ -- function translators.register(from,to)
+ --     local l = lpeg.P(from)/to
+ --     if not list then
+ --         list = l
+ --     else
+ --         list = list + l
+ --     end
+ --     compiled = nil
+ -- end
+ --
+ -- function translators.translate(s)
+ --     if list then
+ --         if not compiled then
+ --             compiled = lpeg.Cs((list + lpeg.P(1))^0)
+ --         end
+ --         return compiled:match(s)
+ --     else
+ --         return s
+ --     end
+ -- end
+
+    -- local function prepare()
+
+    function translators.register(from,to)
+        if not list then
+            list = { [from] = to }
+        else
+            list[from] = to
+        end
+        compiled = nil
+    end
+
+    function translators.translate(s)
+        if list then
+            if not compiled then
+                local tree = lpeg.utfchartabletopattern(list)
+                compiled = lpeg.Cs((tree/list + lpeg.patterns.utf8character)^0 * lpeg.P(-1)) -- the P(1) is needed in order to accept non utf
+            end
+            return compiled:match(s)
+        else
+            return s
+        end
+    end
+
+    local textlineactions = resolvers.openers.helpers.textlineactions
+
+    utilities.sequencers.appendaction(textlineactions,"after","moduledata.translators.translate")
+
+    function translators.enable()
+        utilities.sequencers.enableaction(textlineactions,"moduledata.translators.translate")
+    end
+
+    function translators.disable()
+        utilities.sequencers.disableaction(textlineactions,"moduledata.translators.translate")
+    end
+
+    function translators.reset(s)
+        translators.enable()
+        list, compiled = nil, nil
+    end
+
+    translators.disable()
+\stopluacode
+
+\unprotect
+
+\unexpanded\def\translateinput
+  {\dodoubleargument\module_translate_input}
+
+\def\module_translate_input[#1][#2]%
+  {\ctxlua{moduledata.translators.register(\!!bs#1\!!es,\!!bs#2\!!es)}}
+
+\unexpanded\def\resetinputtranslation
+  {\ctxlua{moduledata.translators.reset()}}
+
+\unexpanded\def\enableinputtranslation
+  {\ctxlua{moduledata.translators.enable()}}
+
+\unexpanded\def\disableinputtranslation
+  {\ctxlua{moduledata.translators.disable()}}
+
+\unexpanded\def\readtranslatedfile#1%
+  {\enableinputtranslation
+   \readfile{#1}\donothing\donothing
+   \disableinputtranslation}
+
+\protect
+
+\continueifinputfile{m-translate.mkiv}
+
+\starttext
+
+    \translateinput[Moica][Mojca]
+  % \translateinput[Idris][Idris (aka ادريس)]
+    \translateinput[Idris][Idris (aka <something arabic here>)]
+
+    \enableinputtranslation
+
+    Well, it's not that hard to satisfy Idris' and Moicas \TEX\ needs.
+
+    \readtranslatedfile{tufte}
+
+\stoptext