On 10/04/2011 17:51, Jonathan M Davis wrote:
Ref http://digitalmars.com/d/2.0/lex.html
What are some possible use cases for delimited strings?
What is solved by having this in the language?
It's probably so that you can still use characters that require escaping in
the string without having to escape " everywhere. WYSIWYGS don't allow for
escaping characters, which can be annoying periodically. Still, delimited
strings do seem a bit funny to me, and I don't think that I've ever used them.
Presumably, they solved some problem fairly nicely, but the only thing that I
can think of is that they still allow for characters that require escaping but
don't force you to escape ", which could be very useful in strings with lots
of "s and other characters that need escaping.
- Jonathan M Davis
DelimitedString:
q" Delimiter WysiwygCharacters MatchingDelimiter "
Therefore you can choose you delimiter, which as you say might be " Also
it looks like you can't use any escapes, because it says
WysiwygCharacters above.
and further down:
Wysiwyg Strings
Wysiwyg quoted strings are enclosed by r" and ". All characters between
the r" and " are part of the string except for EndOfLine which is
regarded as a single \n character. There are no escape sequences inside
r" ":
I take that to mean that you can't use escapes in DelimitedStrings, either.
This would be quite useful for regex, for example.
