rf-web/vendor/bundle/gems/rouge-3.12.0/lib/rouge/lexers/eiffel.rb

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2019-10-21 08:18:17 +00:00
# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
class Eiffel < RegexLexer
title "Eiffel"
desc "Eiffel programming language"
tag 'eiffel'
filenames '*.e'
mimetypes 'text/x-eiffel'
LanguageKeywords = %w(
across agent alias all and attached as assign attribute check
class convert create debug deferred detachable do else elseif end
ensure expanded export external feature from frozen if implies inherit
inspect invariant like local loop not note obsolete old once or
Precursor redefine rename require rescue retry select separate
some then undefine until variant Void when xor
)
BooleanConstants = %w(True False)
LanguageVariables = %w(Current Result)
SimpleString = /(?:[^"%\b\f\v]|%[A-DFHLNQR-V%'"()<>]|%\/(?:0[xX][\da-fA-F](?:_*[\da-fA-F])*|0[cC][0-7](?:_*[0-7])*|0[bB][01](?:_*[01])*|\d(?:_*\d)*)\/)+?/
state :root do
rule %r/"\[/, Str::Other, :aligned_verbatim_string
rule %r/"\{/, Str::Other, :non_aligned_verbatim_string
rule %r/"(?:[^%\b\f\n\r\v]|%[A-DFHLNQR-V%'"()<>]|%\/(?:0[xX][\da-fA-F](?:_*[\da-fA-F])*|0[cC][0-7](?:_*[0-7])*|0[bB][01](?:_*[01])*|\d(?:_*\d)*)\/)*?"/, Str::Double
rule %r/--.*/, Comment::Single
rule %r/'(?:[^%\b\f\n\r\t\v]|%[A-DFHLNQR-V%'"()<>]|%\/(?:0[xX][\da-fA-F](?:_*[\da-fA-F])*|0[cC][0-7](?:_*[0-7])*|0[bB][01](?:_*[01])*|\d(?:_*\d)*)\/)'/, Str::Char
rule %r/(?:#{LanguageKeywords.join('|')})\b/, Keyword
rule %r/(?:#{LanguageVariables.join('|')})\b/, Keyword::Variable
rule %r/(?:#{BooleanConstants.join('|')})\b/, Keyword::Constant
rule %r/\b0[xX][\da-fA-F](?:_*[\da-fA-F])*b/, Num::Hex
rule %r/\b0[cC][0-7](?:_*[0-7])*\b/, Num::Oct
rule %r/\b0[bB][01](?:_*[01])*\b/, Num::Bin
rule %r/\d(?:_*\d)*/, Num::Integer
rule %r/(?:\d(?:_*\d)*)?\.(?:(?:\d(?:_*\d)*)?[eE][+-]?)?\d(?:_*\d)*|\d(?:_*\d)*\.?/, Num::Float
rule %r/:=|<<|>>|\(\||\|\)|->|\.|[{}\[\];(),:?]/, Punctuation::Indicator
rule %r/\\\\|\|\.\.\||\.\.|\/[~\/]?|[><\/]=?|[-+*^=~]/, Operator
rule %r/[A-Z][\dA-Z_]*/, Name::Class
rule %r/[A-Za-z][\dA-Za-z_]*/, Name
rule %r/\s+/, Text
end
state :aligned_verbatim_string do
rule %r/]"/, Str::Other, :pop!
rule SimpleString, Str::Other
end
state :non_aligned_verbatim_string do
rule %r/}"/, Str::Other, :pop!
rule SimpleString, Str::Other
end
end
end
end