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# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
load_lexer 'c.rb'
class Cpp < C
title "C++"
desc "The C++ programming language"
tag 'cpp'
aliases 'c++'
# the many varied filenames of c++ source files...
filenames '*.cpp', '*.hpp',
'*.c++', '*.h++',
'*.cc', '*.hh',
'*.cxx', '*.hxx',
'*.pde', '*.ino',
'*.tpp', '*.h'
mimetypes 'text/x-c++hdr', 'text/x-c++src'
def self.keywords
@keywords ||= super + Set.new(%w(
asm auto catch char8_t concept
consteval constexpr constinit const_cast co_await co_return co_yield
delete dynamic_cast explicit export friend
mutable namespace new operator private protected public
reinterpret_cast requires restrict size_of static_cast this throw throws
typeid typename using virtual final override import module
alignas alignof decltype noexcept static_assert
thread_local try
))
end
def self.keywords_type
@keywords_type ||= super + Set.new(%w(
bool
))
end
def self.reserved
@reserved ||= super + Set.new(%w(
__virtual_inheritance __uuidof __super __single_inheritance
__multiple_inheritance __interface __event
))
end
id = /[a-zA-Z_][a-zA-Z0-9_]*/
prepend :root do
# Offload C++ extensions, http://offload.codeplay.com/
rule %r/(?:__offload|__blockingoffload|__outer)\b/, Keyword::Pseudo
end
# digits with optional inner quotes
# see www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3781.pdf
dq = /\d('?\d)*/
prepend :statements do
rule %r/(class|struct)\b/, Keyword, :classname
rule %r/template\b/, Keyword, :template
rule %r/#{dq}(\.#{dq})?(?:y|d|h|(?:min)|s|(?:ms)|(?:us)|(?:ns)|i|(?:if)|(?:il))\b/, Num::Other
rule %r((#{dq}[.]#{dq}?|[.]#{dq})([ep][+-]?#{dq})?[luf]*)i, Num::Float
rule %r(#{dq}[ep][+-]?#{dq}[luf]*)i, Num::Float
rule %r/0x\h('?\h)*([ep][+-]?#{dq})?[lu]*/i, Num::Hex
rule %r/0x\h('?\h)*[.]\h+([ep][+-]?#{dq})[luf]*/i, Num::Hex
rule %r/0b[01]+('[01]+)*/, Num::Bin
rule %r/0[0-7]('?[0-7])*[lu]*/i, Num::Oct
rule %r/#{dq}[lu]*/i, Num::Integer
rule %r/\bnullptr\b/, Name::Builtin
rule %r/(?:u8|u|U|L)?R"([a-zA-Z0-9_{}\[\]#<>%:;.?*\+\-\/\^&|~!=,"']{,16})\(.*?\)\1"/m, Str
rule %r/(::|<=>)/, Operator
rule %r/[{]/, Punctuation
rule %r/}/ do
token Punctuation
pop! if in_state?(:function) # pop :function
end
end
state :classname do
rule id, Name::Class, :pop!
# template specification
mixin :whitespace
rule %r/[.]{3}/, Operator
rule %r/,/, Punctuation, :pop!
rule(//) { pop! }
end
state :template do
rule %r/[>;]/, Punctuation, :pop!
rule %r/typename\b/, Keyword, :classname
mixin :statements
end
state :case do
rule %r/:(?!:)/, Punctuation, :pop!
mixin :statements
end
end
end
end
|
