HTML5 & CSS3 to EBNF Grammars

Convert W3C HTML5 and CSS3 spec data to EBNF formal grammars.

Update HTML5 Grammar

Update the W3C HTML5 element/attribute data to the desired version:

cd w3c_html
git fetch
git checkout master   # latest proposed HTML5
git checkout html5.1  # HTML 5.1 2nd edition, Recommendation 3 October 2017
git checkout html5.2  # HTML 5.2, Recommendation, 14 October 2017
cd ..

Generate HTML5 EBNF grammar:

time lein with-profile html5 run

Update CSS3 Grammar

Get latest CSS3 property/VDS data by updating the MDN data submodule:

cd mdn_data
git checkout master
git pull
cd ..

Generate CSS3 EBNF grammar:

time lein with-profile css3 run

Parse a web page

Parse a web page and output the grammar path frequency log (Instacheck wtrek) and the pruned EBNF for the HTML and CSS grammar based on the parsed path frequencies/weights.

time lein run --weights-output weights.edn --html-ebnf-output html.ebnf --css-ebnf-output css.ebnf page-to-parse.html

License

Copyright © Joel Martin

Distributed under the Mozilla Public License either version 2.0 or (at your option) any later version.