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--- ./lib/helpdef.gi.orig 2008-06-23 04:12:20.000000000 -0600
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+++ ./lib/helpdef.gi 2011-12-30 15:24:46.334844855 -0700
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@@ -332,6 +332,11 @@ HELP_BOOK_HANDLER.default.ReadSix := fun
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res.pdffile := ShallowCopy(fname);
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Add(res.formats, "pdf");
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fi;
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+ fname{[Length(fname)-5..Length(fname)]} := "dvi.gz";
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+ if IsExistingFile( fname ) = true then
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+ res.dvifile := ShallowCopy(fname);
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+ Add(res.formats, "dvi");
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+ fi;
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fi;
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res.directories := Directory(fname{[1..Length(fname)-10]});
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return res;
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--- ./lib/helpview.gi.orig 2005-04-20 05:38:02.000000000 -0600
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+++ ./lib/helpview.gi 2011-12-30 15:30:48.173594656 -0700
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@@ -283,6 +283,27 @@ show := function(file)
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end
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);
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+# View HTML, DVI, or PDF files with xdg-open, which opens documents with the
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+# user's preferred application.
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+HELP_VIEWER_INFO.xdghtml := rec(
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+type := "url",
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+show := function(url)
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+ Exec(Concatenation("xdg-open \"", url, "\""));
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+end
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+);
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+HELP_VIEWER_INFO.xdgdvi := rec(
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+type := "dvi",
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+show := function(file)
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+ Exec(Concatenation("xdg-open \"", file, "\""));
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+end
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+);
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+HELP_VIEWER_INFO.xdgpdf := rec(
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+type := "pdf",
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+show := function(file)
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+ Exec(Concatenation("xdg-open \"", file, "\""));
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+end
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+);
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+
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#############################################################################
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##
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#F SetHelpViewer(<viewer>): Set the viewer used for help
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