Pseudo-grammar
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The following grammar is used to describe the syntax of C++ lexical elements:
| Notation | Description |
|---|---|
{a|b}
|
Either a or b |
[a]
|
a is optional |
N
|
Number |
STR
|
String |
SYM
|
Symbol name |
FUNC
|
Function name |
EXPR
|
C or C++ expression |
TYPE
|
C or C++ type |
OPT
|
Compiler option |
...
|
A list may follow |
The pseudo-grammar is used in #pragma directives.