Function returns an empty string upon success. Function returns the error message as a string when errors occur. Used to avoid having to handle return values while installing the built-in prefix definitions. Defines text which will be replaced by something else wherever it occurs within measurement expressions. Function returns an empty string upon success.
Function returns the error message as a string when errors occur.
Used to avoid having to handle return values while installing the built-in text replacements. Also used to add measurement categories and measurement synonyms. Function returns an empty string upon success. Function returns the error message as a string when errors occur. Used to avoid having to handle return values while installing the built-in unit definitions.