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