118 lines
3.1 KiB
Ruby
118 lines
3.1 KiB
Ruby
# -*- coding: utf-8 -*- #
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# frozen_string_literal: true
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module Rouge
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module Lexers
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class Smalltalk < RegexLexer
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title "Smalltalk"
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desc 'The Smalltalk programming language'
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tag 'smalltalk'
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aliases 'st', 'squeak'
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filenames '*.st'
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mimetypes 'text/x-smalltalk'
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ops = %r([-+*/\\~<>=|&!?,@%])
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state :root do
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rule %r/(<)(\w+:)(.*?)(>)/ do
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groups Punctuation, Keyword, Text, Punctuation
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end
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# mixin :squeak_fileout
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mixin :whitespaces
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mixin :method_definition
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rule %r/([|])([\w\s]*)([|])/ do
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groups Punctuation, Name::Variable, Punctuation
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end
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mixin :objects
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rule %r/\^|:=|_/, Operator
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rule %r/[)}\]]/, Punctuation, :after_object
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rule %r/[({\[!]/, Punctuation
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end
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state :method_definition do
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rule %r/([a-z]\w*:)(\s*)(\w+)/i do
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groups Name::Function, Text, Name::Variable
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end
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rule %r/^(\s*)(\b[a-z]\w*\b)(\s*)$/i do
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groups Text, Name::Function, Text
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end
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rule %r(^(\s*)(#{ops}+)(\s*)(\w+)(\s*)$) do
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groups Text, Name::Function, Text, Name::Variable, Text
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end
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end
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state :block_variables do
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mixin :whitespaces
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rule %r/(:)(\s*)(\w+)/ do
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groups Operator, Text, Name::Variable
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end
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rule %r/[|]/, Punctuation, :pop!
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rule(//) { pop! }
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end
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state :literals do
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rule %r/'(''|.)*?'/m, Str, :after_object
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rule %r/[$]./, Str::Char, :after_object
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rule %r/#[(]/, Str::Symbol, :parenth
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rule %r/(\d+r)?-?\d+(\.\d+)?(e-?\d+)?/,
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Num, :after_object
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rule %r/#("[^"]*"|#{ops}+|[\w:]+)/,
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Str::Symbol, :after_object
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end
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state :parenth do
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rule %r/[)]/ do
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token Str::Symbol
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goto :after_object
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end
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mixin :inner_parenth
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end
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state :inner_parenth do
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rule %r/#[(]/, Str::Symbol, :inner_parenth
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rule %r/[)]/, Str::Symbol, :pop!
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mixin :whitespaces
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mixin :literals
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rule %r/(#{ops}|[\w:])+/, Str::Symbol
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end
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state :whitespaces do
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rule %r/! !$/, Keyword # squeak chunk delimiter
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rule %r/\s+/m, Text
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rule %r/".*?"/m, Comment
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end
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state :objects do
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rule %r/\[/, Punctuation, :block_variables
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rule %r/(self|super|true|false|nil|thisContext)\b/,
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Name::Builtin::Pseudo, :after_object
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rule %r/[A-Z]\w*(?!:)\b/, Name::Class, :after_object
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rule %r/[a-z]\w*(?!:)\b/, Name::Variable, :after_object
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mixin :literals
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end
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state :after_object do
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mixin :whitespaces
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rule %r/(ifTrue|ifFalse|whileTrue|whileFalse|timesRepeat):/,
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Name::Builtin, :pop!
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rule %r/new(?!:)\b/, Name::Builtin
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rule %r/:=|_/, Operator, :pop!
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rule %r/[a-z]+\w*:/i, Name::Function, :pop!
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rule %r/[a-z]+\w*/i, Name::Function
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rule %r/#{ops}+/, Name::Function, :pop!
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rule %r/[.]/, Punctuation, :pop!
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rule %r/;/, Punctuation
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rule(//) { pop! }
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end
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end
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end
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end
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