# https://gist.github.com/sp301415/db9f7bee03bda483aa2ca7c0ca92fbfa require 'kramdown/parser/kramdown' require 'kramdown-parser-gfm' class Kramdown::Parser::GFMKatex < Kramdown::Parser::GFM # Override inline math parser @@parsers.delete(:inline_math) INLINE_MATH_START = /(\$+)([^\$]+)(\$+)/m def parse_inline_math start_line_number = @src.current_line_number @src.pos += @src.matched_size @tree.children << Element.new(:math, @src.matched[1..-2], nil, category: :span, location: start_line_number) end define_parser(:inline_math, INLINE_MATH_START, '\$') end