Sha256: aa4aea76ea7c5480d6ccc5ae250b982c2fb3e761ac8506a118a756594d731ef7
Contents?: true
Size: 814 Bytes
Versions: 22
Compression:
Stored size: 814 Bytes
Contents
require 'pygments'
module HTML
class Pipeline
# HTML Filter that syntax highlights code blocks wrapped
# in <code lang="...">.
class SyntaxHighlightFilter < Filter
def call
doc.search('code').each do |node|
next unless lang = node['class']
lexer = Pygments::Lexer[lang]
if lexer
text = node.inner_text
html = highlight_with_timeout_handling(lexer, text)
next if html.nil?
node.child.replace(html)
else
node.remove_attribute 'class'
end
end
doc
end
def highlight_with_timeout_handling(lexer, text)
lexer.highlight(text, options: { nowrap: true, startinline: true })
rescue Timeout::Error
nil
end
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems