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Prism.languages.hcl = {
  comment: /(?:\/\/|#).*|\/\*[\s\S]*?(?:\*\/|$)/,
  heredoc: {
    pattern: /<<-?(\w+\b)[\s\S]*?^[ \t]*\1/m,
    greedy: true,
    alias: 'string',
  },
  keyword: [
    {
      pattern:
        /(?:data|resource)\s+(?:"(?:\\[\s\S]|[^\\"])*")(?=\s+"[\w-]+"\s+\{)/i,
      inside: {
        type: {
          pattern: /(resource|data|\s+)(?:"(?:\\[\s\S]|[^\\"])*")/i,
          lookbehind: true,
          alias: 'variable',
        },
      },
    },
    {
      pattern:
        /(?:backend|module|output|provider|provisioner|variable)\s+(?:[\w-]+|"(?:\\[\s\S]|[^\\"])*")\s+(?=\{)/i,
      inside: {
        type: {
          pattern:
            /(backend|module|output|provider|provisioner|variable)\s+(?:[\w-]+|"(?:\\[\s\S]|[^\\"])*")\s+/i,
          lookbehind: true,
          alias: 'variable',
        },
      },
    },
    /[\w-]+(?=\s+\{)/,
  ],
  property: [/[-\w\.]+(?=\s*=(?!=))/, /"(?:\\[\s\S]|[^\\"])+"(?=\s*[:=])/],
  string: {
    pattern:
      /"(?:[^\\$"]|\\[\s\S]|\$(?:(?=")|\$+(?!\$)|[^"${])|\$\{(?:[^{}"]|"(?:[^\\"]|\\[\s\S])*")*\})*"/,
    greedy: true,
    inside: {
      interpolation: {
        pattern: /(^|[^$])\$\{(?:[^{}"]|"(?:[^\\"]|\\[\s\S])*")*\}/,
        lookbehind: true,
        inside: {
          type: {
            pattern:
              /(\b(?:count|data|local|module|path|self|terraform|var)\b\.)[\w\*]+/i,
            lookbehind: true,
            alias: 'variable',
          },
          keyword: /\b(?:count|data|local|module|path|self|terraform|var)\b/i,
          function: /\w+(?=\()/,
          string: {
            pattern: /"(?:\\[\s\S]|[^\\"])*"/,
            greedy: true,
          },
          number: /\b0x[\da-f]+\b|\b\d+(?:\.\d*)?(?:e[+-]?\d+)?/i,
          punctuation: /[!\$#%&'()*+,.\/;<=>@\[\\\]^`{|}~?:]/,
        },
      },
    },
  },
  number: /\b0x[\da-f]+\b|\b\d+(?:\.\d*)?(?:e[+-]?\d+)?/i,
  boolean: /\b(?:false|true)\b/i,
  punctuation: /[=\[\]{}]/,
};