CSTML JSON example: [1, true, "3"]

index.cstml

<!0:cstml bablr-language='https://github.com/bablr-lang/language-json'>
<>
  <Array>
    openToken:
    <~*Punctuator '[' balanced=']' />
    elements[]:
    <Number span='Number'>
      wholePart:
      <Integer>
        digits[]:
        <*Digit>
          '1'
        </>
      </>
      fractionalPart:
        null
      exponentPart:
        null
    </>
    separators[]:
    <~*Punctuator ',' />
    <#*Space:Space>
      ' '
    </>
    elements[]:
    <Boolean>
      sigilToken:
      <~*Keyword 'true' />
    </>
    separators[]:
    <~*Punctuator ',' />
    <#*Space:Space>
      ' '
    </>
    elements[]:
    <String>
      openToken:
      <~*Punctuator '"' balanced='"' balancedSpan='String' />
      content:
      <*StringContent>
        '3'
      </>
      closeToken:
      <~*Punctuator '"' balancer />
    </>
    closeToken:
    <~*Punctuator ']' balancer />
  </>
</>