Each REXX instruction is one ore more clauses, the first clause is the one that identifies the instruction.
Instructions end with a semicolon or with a new line.
One instruction may be continued from one line to the next by using a comma at the end of the line. Open strings or comments are not affected by line ends. The value of name is translated to uppercase before use, and forms the initial value of the value of the variable. The colon acts as a clause separator. Arguments are translated into uppercase before the parsing.