module Kramdown::Converter::SyntaxHighlighter::Rouge
Uses Rouge which is CSS-compatible to Pygments to highlight code blocks and code spans.
Constants
- AVAILABLE
Highlighting via Rouge is available if this constant is
true
.
Public Class Methods
call(converter, text, lang, type, call_opts)
click to toggle source
# File lib/kramdown/converter/syntax_highlighter/rouge.rb, line 23 def self.call(converter, text, lang, type, call_opts) opts = options(converter, type) call_opts[:default_lang] = opts[:default_lang] lexer = ::Rouge::Lexer.find_fancy(lang || opts[:default_lang], text) return nil if opts[:disable] || !lexer formatter = (opts.delete(:formatter) || ::Rouge::Formatters::HTML).new(opts) formatter.format(lexer.lex(text)) end
options(converter, type)
click to toggle source
# File lib/kramdown/converter/syntax_highlighter/rouge.rb, line 33 def self.options(converter, type) prepare_options(converter) converter.data[:syntax_highlighter_rouge][type] end
prepare_options(converter)
click to toggle source
# File lib/kramdown/converter/syntax_highlighter/rouge.rb, line 38 def self.prepare_options(converter) return if converter.data.key?(:syntax_highlighter_rouge) cache = converter.data[:syntax_highlighter_rouge] = {} opts = converter.options[:syntax_highlighter_opts].dup span_opts = (opts.delete(:span) || {}).dup block_opts = (opts.delete(:block) || {}).dup [span_opts, block_opts].each do |hash| hash.keys.each do |k| hash[k.kind_of?(String) ? Kramdown::Options.str_to_sym(k) : k] = hash.delete(k) end end cache[:span] = opts.merge(span_opts).update(:wrap => false) cache[:block] = opts.merge(block_opts) end