Sha256: 45f1ad7011096b776bd37cca2bae1b96d4544978fdee581fa7ad8ff9d1c59128
Contents?: true
Size: 707 Bytes
Versions: 13
Compression:
Stored size: 707 Bytes
Contents
require 'pygments'
module HTML
class Pipeline
# HTML Filter that syntax highlights code blocks wrapped
# in <pre lang="...">.
class SyntaxHighlightFilter < Filter
def call
doc.search('code').each do |node|
next unless lang = node['class']
next unless lexer = Pygments::Lexer[lang]
text = node.inner_text
html = highlight_with_timeout_handling(lexer, text)
next if html.nil?
node.child.replace(html)
end
doc
end
def highlight_with_timeout_handling(lexer, text)
lexer.highlight(text, options: { nowrap: true })
rescue Timeout::Error
nil
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems