reduce to only pandoc pipeline + fix script according to downstream patches

pandocPipeline.bat

@@ -0,0 +1,124 @@
+@echo off
+
+::if no arguments given show help
+IF "%1"=="" (goto :help)
+
+set editor=%USERNAME%
+set title = 
+set file = none 
+set ending = tex
+set "_="
+::path to this script
+set script= %~dp0 
+set version= 1.0
+
+::parsing arguments
+:loop
+IF NOT "%1"=="" (
+    IF "%1"=="-h" (
+        goto :help
+    )
+    IF "%1"=="--help" (
+        goto :help
+    )
+    IF "%1"=="-v" (
+        goto :version
+    )
+    IF "%1"=="--version" (
+        goto :version
+    )
+    IF "%1"=="-f" (
+        SET file=%2
+        SHIFT
+    )
+    IF "%1"=="--file" (
+        SET file=%2
+        SHIFT
+    )
+    IF "%1"=="-e" (
+        SET ending=%2
+        SHIFT
+    )
+    IF "%1"=="--ending" (
+        SET ending=%2
+        SHIFT
+    )
+    SHIFT
+    GOTO :loop
+) 
+
+:program
+::check if file to parse was given
+IF %file%==none (goto :errorfile) ELSE (goto :extract_metadata)
+
+:extract_metadata
+set title=%file%
+For /F "UseBackQ Tokens=1,*" %%G In ("%file%.md") Do (
+    If "%%~G" == "title:" (
+        set title=%%H
+    )
+    If "%%~G" == "author:" (
+        set editor=%%H
+    ) 
+)
+goto :selection
+
+:selection
+IF %ending%==pdf (goto :program_tex) 
+IF %ending%==docx (goto :program_docx) ELSE (goto :program_other)
+
+:program_tex
+set header=%script%header.md
+set header=%header: =%
+set sedfile=%script%body.sed
+set sedfile=%sedfile: =%
+set picture=%script%Logo.png
+set picture=%picture: =%
+set picture=%picture:\=/%
+set pandocenv=%script%pandoc_latex_environment.py
+set pandocenv=%pandocenv: =%
+::fill header with appropriate information
+sed -i 's,Editor:.*,Editor: '"%editor%"' \\\\\\\\,' %header% 
+sed -i 's,Title:.*,Title: '"%title%"',' %header% 
+sed -i 's,textwidth]{.*,textwidth]{'%picture%'}},' %header%
+::execute pandoc
+cat %file%.md %header% | sed -E -f %sedfile%| pandoc --filter %pandocenv% --number-sections --toc -i - -o %file%.pdf
+goto :open
+
+:program_docx
+set refdoc=%script%custom-reference.docx
+set refdoc=%refdoc: =%
+pandoc %file%.md --reference-doc=%refdoc% -f markdown -t %ending% -s -o %file%.%ending%
+goto :open
+
+:program_other
+pandoc %file%.md -f markdown -t %ending% -s -o %file%.%ending%
+goto :open
+
+:open
+%file%.%ending%
+goto :end
+
+:help
+echo Tool to convert file from markdown to another format
+echo Usage: pandocPipeline [OPTION] [COMMAND]
+echo    -h, --help              show this help screen
+echo    -f, --file              specify filename without extension
+echo    -e, --ending            spefify target file format
+echo Pipeline is optimized for target format pdf and docx but works with others as well
+echo Possible fileformats see: https://pandoc.org/diagram.svgz?v=20230203095535 
+echo Author is by default %USERNAME% to change the author add the author to the metadata in your markdown file
+echo Title is by default the filename to change the title add the title to the metadata in your markdown file
+goto :end 
+
+:version
+echo pandocPipeline %version%
+goto :end
+
+:errorfile
+echo No file was given
+echo Please add a filename to your command
+echo Try 'pandocPipeline --help' for more information 
+goto :end
+
+:end