TRIM: Strip a Character String of Trailing Blanks

Related functions are LEN and LEN_TRIM.

• TRIM(string) returns string with trailing blanks removed, e.g.:
  • CHARACTER string = " hello world "
  • trimmed_length = LEN( TRIM( string ) ) ! trimmed_length is set to 12
• LEN is a function to return the length of a string (or of a REAL array)
  • full_length = LEN(string) ! full_lenght is set to 18
• LEN_TRIM is a function to return the trimmed length of a character string
  • trimmed_length = LEN_TRIM( string ) ! set again to 12