DIP 1027---String Interpolation---Community Review Round 1
Adam D. Ruppe
destructionator at gmail.com
Thu Dec 12 17:01:01 UTC 2019
On Thursday, 12 December 2019 at 15:41:54 UTC, aliak wrote:
> Except you can actually assign it to a string?
The default one returns string but you can do other things with
it too like return objects or functions or whatever.
It passes the strings and the original elements, and you can
actually even request the raw string to do custom escape
sequences in it (really, the JS lexer treats it as a raw string,
then there's a function on the object that can do default escape
sequences for you).
If you wanna talk about taking the best ideas from other
nice. They are so much more than a multi-line string or a way to
This is why my proposal transforms the "interpolated string" into
an object. Making it do the raw string with an escape method is a
good idea to take too.
Anyway, the object can `alias toString this` so you assign it to
string and it just works like newbies expect. Templates don't
trigger alias this but do often use toString so that just works.
But then you can also recognize it specifically in
functions/templates, store it in variables, etc for further
processing. My interpolation object can be transformed into a
("%s", x) tuple. A plain tuple for calls like writeln. Or be
passed to user functions.
XmlElement e = xml!i"
There's a lot of cool things we can do.
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