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2.3 Identifiers
1
Identifiers
are used as names.
Syntax
2
identifier
::=
identifier_letter {[
underline]
letter_or_digit}
3
letter_or_digit
::= identifier_letter |
digit
4
An identifier
shall not be a reserved word.
Static Semantics
5
All characters of an
identifier
are significant, including any underline character.
Identifiers
differing only in the use of corresponding upper and lower case letters
are considered the same.
Implementation Permissions
6
In a nonstandard mode, an implementation may support
other upper/lower case equivalence rules for identifiers,
to accommodate local conventions.
Examples
7
Examples of identifiers:
8
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