NGWS SDK Documentation  

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2.5.3.4 Character literals

A character literal is a single character enclosed in single quotes, as in 'a'.

character-literal:
' character '
character:
single-character
simple-escape-sequence
hexadecimal-escape-sequence
unicode-character-escape-sequence
single-character:
Any character except ' (U+0027), \ (U+005C), and white-space other than space (U+0020)
simple-escape-sequence: one of
\' \" \\ \0 \a \b \f \n \r \t \v
hexadecimal-escape-sequence:
\x hex-digit hex-digitopt hex-digitopt hex-digitopt

A character that follows a backslash character (\) in a simple-escape-sequence or hexadecimal-escape-sequence must be one of the following characters: ', ", \, 0, a, b, f, n, r, t, x, v. Otherwise, a compile-time error occurs.

A simple escape sequence represents a Unicode character encoding, as described in the table below.

Escape sequence Character name Unicode encoding
\' Single quote 0x0027
\" Double quote 0x0022
\\ Backslash 0x005C
\0 Null 0x0000
\a Alert 0x0007
\b Backspace 0x0008
\f Form feed 0x000C
\n New line 0x000A
\r Carriage return 0x000D
\t Horizontal tab 0x0009
\v Vertical tab 0x000B