Sha256: 8e82ae42d82e52d858460b9ffdf98df171ea20729881ef29d2c3dbafbad9b8c7
Contents?: true
Size: 1.26 KB
Versions: 28
Compression:
Stored size: 1.26 KB
Contents
module PDoc
module Generators
module Html
class SyntaxHighlighter
CODE_BLOCK_REGEXP = /(?:\n\n|\A)(?:\s{4,}lang(?:uage)?:\s*(\w+)\s*\n)?((?:\s{4}.*\n*)+)(^\s{0,3}\S|\z)?/
attr_reader :highlighter
def initialize(h = nil)
@highlighter = h.nil? ? :none : h.to_sym
end
def parse(input)
input.gsub(CODE_BLOCK_REGEXP) do |block|
language, codeblock, remainder = $1, $2, $3
codeblock = codeblock.gsub(/^\s{4}/, '').rstrip
"\n\n#{highlight_block(codeblock, language)}\n#{remainder}"
end
end
def highlight_block(code, language)
language = :javascript if language.nil?
case highlighter.to_sym
when :none
require 'cgi'
code = CGI.escapeHTML(code)
"<pre><code class=\"#{language}\">#{code}</code></pre>"
when :coderay
require 'coderay'
CodeRay.scan(code, language).div
when :pygments
require 'albino'
Albino.new(code, language).colorize
else
raise "Requested unsupported syntax highlighter: #{highlighter}"
end
end
end
end
end
end
Version data entries
28 entries across 28 versions & 2 rubygems