1 files changed, 39 insertions, 0 deletions
diff --git a/tex/context/base/mlib-ctx.lua b/tex/context/base/mlib-ctx.lua
new file mode 100644
index 000000000..6ada8ad19
--- /dev/null
+++ b/tex/context/base/mlib-ctx.lua
@@ -0,0 +1,39 @@
+if not modules then modules = { } end modules ['mlib-ctx'] = {
+    version   = 1.001,
+    comment   = "companion to mlib-ctx.tex",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files",
+}
+
+-- todo
+
+local format, join = string.format, table.concat
+local sprint = tex.sprint
+
+metapost = metapost or {}
+metapost.defaultformat = "metafun"
+
+function metapost.graphic(mpsformat,str,preamble)
+    local mpx = metapost.format(mpsformat or metapost.defaultformat)
+    metapost.graphic_base_pass(mpx,str,preamble)
+end
+
+function metapost.filterclippath(result)
+    if result then
+        local figures = result.fig
+        if figures and #figures > 0 then
+            local figure = figures[1]
+            local objects = figure:objects()
+            if objects then
+                for o=1,#objects do
+                    local object = objects[o]
+                    if object.type == "start_clip" then
+                        return join(flushnormalpath(object.path,{ }),"\n")
+                    end
+                end
+            end
+        end
+    end
+    return ""
+end