How does one escape characters in Delphi string

delphi string escaping literals
Boaz picture Boaz · Nov 19, 2008 · Viewed 41.8k times · Source

Delphi strings use single quotes, for example 'a valid string'. How does one specify the ' character within a literal string? How would one refer to the null byte (Unicode code point U+0000)?

Answer

Jamie picture Jamie · Nov 19, 2008

To add a single quote to a string, you include two ' marks e.g. 

str := '''test string''';
Writeln(str)

In the string above, you have the normal single quotation to start a string and then two for the single quote. Same goes for the end of the string.

You can also use # followed by a number for other escape character e.g.
For a new line:

str := 'Newline' + #13 + #10

or just 

str := 'Newline'#13#10

Of course, using the platform-dependent constant for newline is better.

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