Specifications

Chapter 4. Basic Program Elements
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4.5 Reserved Words
"Reserved words" are keywords to be used in statements, functions, and operators. For the
reserved words, refer to Appendix B, "Reserved Words."
Rules for using reserved words
A reserved word cannot be used by itself for a label name, a variable name, or other
identifiers, but can be included within them. The following identifiers, for example, are
improper since they use reserved words "input" and "key" as is, without modification:
input = 3
key = 1
A reserved word can be used for a data file name as shown below.
OPEN "input" AS #1