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[ruby/rdoc] Fix polynominal backtracking

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Fix https://github.com/ruby/rdoc/pull/995

https://github.com/ruby/rdoc/commit/adfa7db5b9
This commit is contained in:
Nobuyoshi Nakada 2023-04-28 23:46:43 +09:00 committed by git
parent d239643603
commit 85a9fd1902
2 changed files with 8 additions and 1 deletions
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2
lib/rdoc/parser/ruby.rb
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@ -2134,7 +2134,7 @@ class RDoc::Parser::Ruby < RDoc::Parser
if :on_nl == tk[:kind] or (:on_kw == tk[:kind] && 'def' == tk[:text]) then
return
elsif :on_comment == tk[:kind] or :on_embdoc == tk[:kind] then
return unless tk[:text] =~ /\s*:?([\w-]+):\s*(.*)/
return unless tk[:text] =~ /:?\b([\w-]+):\s*(.*)/
directive = $1.downcase

7
test/rdoc/test_rdoc_parser_ruby.rb
View File

@ -3350,6 +3350,13 @@ end
assert_equal :on_const, parser.get_tk[:kind]
end
def test_read_directive_linear_performance
pre = ->(i) {util_parser '# ' + '0'*i + '=000:'}
assert_linear_performance((1..5).map{|i|10**i}, pre: pre) do |parser|
assert_nil parser.read_directive []
end
end
def test_read_documentation_modifiers
c = RDoc::Context.new