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2.3 String literals

String literal is a sequence of arbitrary characters enclosed either in single quotes or in double quotes. Both these forms are equivalent.

If the single quote is a part of a string literal enclosed in single quotes, it must be coded twice. Analogously, if the double quote is a part of string literal enclosed in double quotes, it must be coded twice.

Examples

'This is a string'
"This is another string"
'1 + 2 = 3'
'That''s all'
"She said: ""No"""

String literals are used to represent symbolic quantities.