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2.6 String Literals
is formed by a sequence of graphic characters (possibly none) enclosed
between two quotation marks used as string brackets. They are used to
), values of a string type (see 4.2
and array subaggregates (see 4.3.3
"" | non_quotation_mark_graphic_character
is either a pair of quotation marks (""), or a single graphic_character
other than a quotation mark.
The sequence of characters
of a string_literal
is formed from
the sequence of string_element
between the bracketing quotation marks, in the given order, with a string_element
that is "" becoming a single quotation mark in the sequence
of characters, and any other string_element
being reproduced in the sequence.
A null string literal
is a string_literal
with no string_element
between the quotation marks.
5 An end of line cannot
appear in a string_literal.
Examples of string
"Message of the day:"
"" -- a null string literal
" " "A" """" -- three string literals of length 1
"Characters such as $, %, and } are allowed in string literals"
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