Name

A name consists of letters, digits and underscore characters. The first character must be a letter. The syntax for a name is:

<name> ::= <letter> {<letter>| <letter> | <digit> | _ }

Example

car michael a38 another_name_with_1_digit

The following names are pre-defined keywords and must not be employed as user-defined identifiers:

abs cos log save_values

and description ln section

advice display max showpic

arctan do min sin

assign do_section_of not sound

boolean ending number system

call endstr or sqrt

category exit parameter startstr

cf_add exp picture strlen

cf_and explanation power tan

cf_not false question text

cf_or hyperadvice quit true

chain if range trunc

clear_all int restore_values type

clear_value known rules unknown

concat