HP C/iX Reference Manual (31506-90011)

200 AppendixB
Syntax Summary
Lexical Grammar
nonzero-digit ::= any character from the set:
123456789
octal-digit ::= any character from the set
01234567
hexadecimal-digit ::= any character from the set
0123456789
abcdef
ABCDEF
integer-suffix :=
unsigned-suffix [long-suffix]
long-suffix [unsigned-suffix]
unsigned-suffix ::=
uU
long-suffix ::=
lL
enumeration-constant ::= identifier
character-constant ::=
' c-char-sequence '
L' c-char-sequence '
c-char-sequence ::=
c-char
c-char-sequence c-char
c-char ::=
any character in the source character set except
the single quote ('), backslash (\), or new-line character
escape-sequence
escape-sequence ::=
simple-escape-sequence
octal-escape-sequence
hexadecimal-escape-sequence
simple-escape-sequence ::=
\’ \” \? \\ \ddd \xdd
\a \b \f \n \r \t \v
octal-escape-sequence ::=
octal-digit
octal-digit octal-digit
octal-digit octal-digit octal-digit
hexadecimal-escape-sequence ::=
x hexadecimal-digit
hexadecimal-escape-sequence hexadecimal-digit