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# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
class TOML < RegexLexer
title "TOML"
desc 'the TOML configuration format (https://github.com/toml-lang/toml)'
tag 'toml'
filenames '*.toml', 'Pipfile', 'poetry.lock'
mimetypes 'text/x-toml'
state :root do
mixin :whitespace
mixin :key
rule %r/(=)(\s*)/ do
groups Operator, Text::Whitespace
push :value
end
rule %r/\[\[?/, Keyword, :table_key
end
state :key do
rule %r/[A-Za-z0-9_-]+/, Name
rule %r/"/, Str, :dq
rule %r/'/, Str, :sq
rule %r/\./, Punctuation
end
state :table_key do
rule %r/[A-Za-z0-9_-]+/, Name
rule %r/"/, Str, :dq
rule %r/'/, Str, :sq
rule %r/\./, Keyword
rule %r/\]\]?/, Keyword, :pop!
rule %r/[ \t]+/, Text::Whitespace
end
state :value do
rule %r/\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z/, Literal::Date, :pop!
rule %r/\d\d:\d\d:\d\d(\.\d+)?/, Literal::Date, :pop!
rule %r/[+-]?\d+(?:_\d+)*\.\d+(?:_\d+)*(?:[eE][+-]?\d+(?:_\d+)*)?/, Num::Float, :pop!
rule %r/[+-]?\d+(?:_\d+)*[eE][+-]?\d+(?:_\d+)*/, Num::Float, :pop!
rule %r/[+-]?(?:nan|inf)/, Num::Float, :pop!
rule %r/0x\h+(?:_\h+)*/, Num::Hex, :pop!
rule %r/0o[0-7]+(?:_[0-7]+)*/, Num::Oct, :pop!
rule %r/0b[01]+(?:_[01]+)*/, Num::Bin, :pop!
rule %r/[+-]?\d+(?:_\d+)*/, Num::Integer, :pop!
rule %r/"""/, Str, [:pop!, :mdq]
rule %r/"/, Str, [:pop!, :dq]
rule %r/'''/, Str, [:pop!, :msq]
rule %r/'/, Str, [:pop!, :sq]
rule %r/(true|false)/, Keyword::Constant, :pop!
rule %r/\[/, Punctuation, [:pop!, :array]
rule %r/\{/, Punctuation, [:pop!, :inline]
end
state :dq do
rule %r/"/, Str, :pop!
rule %r/\n/, Error, :pop!
mixin :esc_str
rule %r/[^\\"\n]+/, Str
end
state :mdq do
rule %r/"""/, Str, :pop!
mixin :esc_str
rule %r/[^\\"]+/, Str
rule %r/"+/, Str
end
state :sq do
rule %r/'/, Str, :pop!
rule %r/\n/, Error, :pop!
rule %r/[^'\n]+/, Str
end
state :msq do
rule %r/'''/, Str, :pop!
rule %r/[^']+/, Str
rule %r/'+/, Str
end
state :esc_str do
rule %r/\\[0t\tn\n "\\r]/, Str::Escape
end
state :array do
mixin :whitespace
rule %r/,/, Punctuation
rule %r/\]/, Punctuation, :pop!
rule %r//, Token, :value
end
state :inline do
rule %r/[ \t]+/, Text::Whitespace
mixin :key
rule %r/(=)(\s*)/ do
groups Punctuation, Text::Whitespace
push :value
end
rule %r/,/, Punctuation
rule %r/\}/, Punctuation, :pop!
end
state :whitespace do
rule %r/\s+/, Text
rule %r/#.*?$/, Comment
end
end
end
end
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