The specification in built with ASCIIDOC.

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Installing ASCIIDOC

Mac OS X

Requirements:

• homebrew
• MacTex

brew install asciidoc
# old: curl -o /usr/local/Library/Formula/dblatex.rb -L http://gist.github.com/dustinschultz/6544364/raw/5bbe233fbe953b8070c5453fdf09cd65eb515e9e/dblatex.rb
# https://gist.github.com/jj1bdx/cd021cc7883300162de7
brew edit dblatex
# May need to set MacTex path
brew install dblatex

Environment

export XML_CATALOG_FILES=/usr/local/etc/xml/catalog