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diff --git a/paper/lua-filters/plantuml/plantuml.lua b/paper/lua-filters/plantuml/plantuml.lua
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---[[
-# PlantUML Pandoc filter
-PlantUML Pandoc filter to process code blocks with class "plantuml" containing PlantUML notation into images.
-
-* For textual output formats, use --extract-media=DIR
-* For HTML formats, you may alternatively use --self-contained
-
-## Example in markdown-file
-```plantuml
-@startuml
-Alice -> Bob: Authentication Request Bob --> Alice: Authentication Response
-Alice -> Bob: Another authentication Request Alice <-- Bob: another authentication Response @enduml
-```
-## Run pandoc
-```
-pandoc --self-contained --lua-filter=plantuml.lua readme.md -o output.htm
-```
-
-## Prerequisites
-* download PlantUML from http://plantuml.com (needs JAVA)
-* 3 ways to set the environment
-    1. plantuml.lua and plantuml.jar in the same folder and start pandoc always from this folder
-    2. set a Environment Variable PLANTUML with the path to plantuml.jar
-        * Windows - with powershell: Set-Item env:PLANTUML "c:\bin\plantuml.jar"
-    3. change path to plantuml.jar in plantuml.lua
-
-This script based on the example "Converting ABC code to music notation" from https://pandoc.org/lua-filters.html
-**This script was only tested with markdown to html on a windows environment!**
-]]
-
--- Path to PlantUML.jar
--- if you use opinion 3 change the path to plantuml.jar like this:
--- local plantumlPath = os.getenv("PLANTUML") or "c:\\bin\\plantuml.jar"
-local plantumlPath = os.getenv("PLANTUML") or "plantuml.jar"
-
--- SVG has a much better quality
--- local filetype = "png"
--- local mimetype = "image/png"
-local filetype = "svg"
-local mimetype = "image/svg+xml"
-
--- call plantuml.jar wit some parameters (see plantuml help)
-local function plantuml(puml, filetype, plantumlPath)
-    local final = pandoc.pipe("java", {"-jar", plantumlPath, "-t" .. filetype, "-pipe", "-charset", "UTF8"}, puml)
-    return final
-end
-
--- search for class "plantuml" and replace with image
-function CodeBlock(block)
-    if block.classes[1] == "plantuml" then
-        local img = plantuml(block.text, filetype, plantumlPath)
-        local fname = pandoc.sha1(img) .. "." .. filetype
-        pandoc.mediabag.insert(fname, mimetype, img)
-        return pandoc.Para{ pandoc.Image({pandoc.Str("PlantUML Diagramm")}, fname) }
-    end
-end