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# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
load_lexer 'json.rb'
class JSON5 < JSON
title 'JSON 5'
tag 'json5'
filenames '*.json5'
mimetypes 'application/json5', 'application/x-json5'
desc 'JSON 5 extension for JSON (json5.org)'
append :whitespace do
rule %r://.*$:, Comment
# comments are non-nesting, so a single regex will do
rule %r:/[*].*?[*]/:m, Comment
end
prepend :name do
rule Javascript.id_regex, Name::Label
rule %r/".*?"/, Name::Label
end
# comments can appear between keys and :, so we have to
# manage our states a little more carefully
append :object do
rule %r/:/ do
token Punctuation
goto :object_value
end
end
state :object_value do
mixin :value
rule %r/,/ do
token Punctuation
goto :object
end
rule %r/}/, Punctuation, :pop!
end
append :value do
rule %r/'/, Str::Single, :sstring
end
state :sstring do
rule %r/[^\\']+/, Str::Single
rule %r/\\./m, Str::Escape
rule %r/'/, Str::Single, :pop!
end
# can escape newlines
append :string do
rule %r/\\./m, Str::Escape
end
# override: numbers are very different in json5
state :constants do
rule %r/\b(?:true|false|null)\b/, Keyword::Constant
rule %r/[+-]?\b(?:Infinity|NaN)\b/, Keyword::Constant
rule %r/[+-]?0x\h+/i, Num::Hex
rule %r/[+-.]?[0-9]+[.]?[0-9]?([eE][-]?[0-9]+)?/i, Num::Float
rule %r/[+-]?\d+e[+-]?\d+/, Num::Integer
rule %r/[+-]?(?:0|[1-9]\d*)(?:e[+-]?\d+)?/i, Num::Integer
end
end
end
end
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