Specification of Values

These rules apply to values specified in resources:

• Coordinates must be integers. There must be no space between the sign of the value and the value itself. For example, "-1" is allowed but "- 1" is not.

• Resource identifiers may be any of the following:

  • Positive integers
    
  • Names that resolve to positive integers
    
  • Strings (for some resources)
  
  Real values, containing a decimal point, cannot be used.

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