rf-web/vendor/bundle/gems/rouge-3.12.0/lib/rouge/lexers/diff.rb
2019-10-21 10:18:17 +02:00

38 lines
1.0 KiB
Ruby

# frozen_string_literal: true
module Rouge
module Lexers
class Diff < RegexLexer
title 'diff'
desc 'Lexes unified diffs or patches'
tag 'diff'
aliases 'patch', 'udiff'
filenames '*.diff', '*.patch'
mimetypes 'text/x-diff', 'text/x-patch'
def self.detect?(text)
return true if text.start_with?('Index: ')
return true if text =~ %r(\Adiff[^\n]*?\ba/[^\n]*\bb/)
return true if text =~ /(---|[+][+][+]).*?\n(---|[+][+][+])/
end
state :root do
rule(/^ .*$\n?/, Text)
rule(/^---$\n?/, Punctuation)
rule(/^[+>]+.*$\n?/, Generic::Inserted)
rule(/^\+.*$\n?/, Generic::Inserted)
rule(/^[-<]+.*$\n?/, Generic::Deleted)
rule(/^!.*$\n?/, Generic::Strong)
rule(/^([Ii]ndex|diff).*$\n?/, Generic::Heading)
rule(/^(@@[^@]*@@)([^\n]*\n)/) do
groups Punctuation, Text
end
rule(/^\w.*$\n?/, Punctuation)
rule(/^=.*$\n?/, Generic::Heading)
rule(/\s.*$\n?/, Text)
end
end
end
end