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C++11 allows raw strings, unicode strings (UTF-8, UTF-16, and UTF-32), and wide character strings, determined by prefixes. It also adds literals for the existing C++ string, which is generally preferred to the existing C-style strings. In Tcl, brace-delimited strings are literal, while quote-delimited strings have escaping and interpolation.
For function that manipulate strings, modern object-oriented languages, like C# and Java have immutable strings and return a copy (in newly allocated dynamic memory), while others, like C manipulate the original string unless the programmer copies data to a new string.
Like raw strings, there can be any number of equals signs between the square brackets, provided both the opening and closing tags have a matching number of equals signs; this allows nesting as long as nested block comments/raw strings use a different number of equals signs than their enclosing comment: --[[comment --[=[ nested comment ...
In the C programming language, an escape sequence is specially delimited text in a character or string literal that represents one or more other characters to the compiler.It allows a programmer to specify characters that are otherwise difficult or impossible to specify in a literal.
The strings over an alphabet, with the concatenation operation, form an associative algebraic structure with identity element the null string—a free monoid. Sets of strings with concatenation and alternation form a semiring, with concatenation (*) distributing over alternation (+); 0 is the empty set and 1 the set consisting of just the null ...
A delimiter is a sequence of one or more characters for specifying the boundary between separate, independent regions in plain text, mathematical expressions or other data streams. [1] [2] An example of a delimiter is the comma character, which acts as a field delimiter in a sequence of comma-separated values.
String datatypes have historically allocated one byte per character, and, although the exact character set varied by region, character encodings were similar enough that programmers could often get away with ignoring this, since characters a program treated specially (such as period and space and comma) were in the same place in all the ...
C++11 provides a raw string literal: R"(The String Data \ Stuff " )" R"delimiter(The String Data \ Stuff " )delimiter" In the first case, everything between the "(and the )" is part of the string. The " and \ characters do not need to be escaped. In the second case, the "delimiter(starts the string, and it ends only when )delimiter" is reached