@technobuddha > library > Programming > Escaping

Function: escapeC()

function escapeC(input: string): string;

Defined in: escape-c.ts:46

Escape a string for use in C/C++

Character	Hex	Escape Sequence
NUL	0x00	\0 or \000[^1]
Bell	0x07	\a
Backspace	0x08	\b
Tab	0x09	\t
Newline	0x0a	\n
Vertical Tab	0x0b	\v
Form Feed	0x0c	\f
Carriage Return	0x0d	\r
Escape	0x1b	\x1b[^2] or \u001b[^3]
Double Quote	0x22	\"
Single Quote	0x27	\'
Question Mark	0x3f	\?
Backslash	0x5c	\\
Control Characters	0x00-0x1f, 0x7f-0x9f	\xnn or \unnnn[^3]
BMP	0x0100-0xffff	\unnnn
Astral	0x10000-0x10ffff	\Unnnnnnnn

[^1]: The sequence \0 must not be followed by a octal digit (0-7) to avoid being interpreted as a different character, \000 will be used to avoid ambiguity. [^2]: The non-standard sequence \e represents the escape character in GCC, clang and tcc. It was not added to the C standard because it has no meaningful equivalent in some character sets (such as EBCDIC). [^3]: The sequence \xnn must not be followed by a hexadecimal digit (0-9, a-f, A-F) to avoid being interpreted as a different character, \unnnn will be used to avoid ambiguity.

Parameters

Parameter	Type	Description
input	string	The string to escape

Returns

string

the escaped string

Example

escapeC('Hello\nWorld'); // "Hello\\nWorld"
escapeC('"\\');          // "\\\"\\\\"
escapeC('\x07');         // "\\a"
escapeC('\u20ac');       // "\\u20ac"