stable 2010-05-24 13:10

1 files changed, 88 insertions, 0 deletions

diff --git a/tex/context/base/m-translate.tex b/tex/context/base/m-translate.tex
new file mode 100644
index 000000000..9c550eca7
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+++ b/tex/context/base/m-translate.tex
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+%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=Hans Hagen]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+\doifnotmode{mkiv}{\endinput}
+
+%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
+    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
+
+    function translators.reset(s)
+        resolvers.install_text_filter("user",nil)
+        list, compiled = nil, nil
+    end
+    function translators.enable(s)
+        resolvers.install_text_filter("user",translators.translate)
+    end
+    function translators.disable(s)
+        resolvers.install_text_filter("user",nil)
+    end
+\stopluacode
+
+\unprotect
+
+\def\translateinput{\dodoubleargument\dotranslateinput}
+
+\def\dotranslateinput[#1][#2]{\ctxlua{translators.register(\!!bs#1\!!es,\!!bs#2\!!es)}}
+
+\def\resetinputtranslation  {\ctxlua{translators.reset()}}
+\def\enableinputtranslation {\ctxlua{translators.enable()}}
+\def\disableinputtranslation{\ctxlua{translators.disable()}}
+
+\def\readtranslatedfile#1%
+  {\enableinputtranslation
+   \readfile{#1}\donothing\donothing
+   \disableinputtranslation}
+
+\protect
+
+\doifnotmode{demo}{\endinput}
+
+\starttext
+
+    \translateinput[Moica][Mojca]
+    \translateinput[Idris][Idris (aka ادريس)]
+
+    \enableinputtranslation
+
+    Well, it's not that hard to satisfy Idris and Moica.
+
+    \readtranslatedfile{tufte}
+
+\stoptext