Raw strings starting/ending with backtick (original) (raw)

Cay Horstmann cay.horstmann at sjsu.edu
Sun Nov 25 07:39:39 UTC 2018

I agree that it is inelegant that there is no good syntax for raw strings starting with a backtick. Some time ago (http://horstmann.com/unblog/2018-06-01), I suggested that an initial newline after the backticks could count as part of the raw string delimiter:

   String myNameInABox = ```

+-----+ | Cay | +-----+```; // This string starts with +

Ok, maybe it's not brilliant, but it solves two problems: (1) how to format multiline strings that should be aligned, without having to strip out the initial newline (2) how to declare strings that start with a backtick.

Cheers,

Cay

Le 24/11/2018 à 18:57, Attila Kelemen a écrit :

Thanks for all the answers. I was just a little curious if I missed something and there is nice syntax for this as well. Not that I could come up with something brilliant, only if Java was a brand new language, then 3 "quote" types would solve all the issues (and escaping would be completely useless). Obviously, this is not really an option here.

James Laskey <james.laskey at oracle.com <mailto:james.laskey at oracle.com>> ezt írta (időpont: 2018. nov. 24., Szo, 18:30):

Sent from my iPhone > On Nov 24, 2018, at 11:34 AM, Weijun Wang <weijun.wang at oracle.com_ _<mailto:weijun.wang at oracle.com>> wrote: > > > >> On Nov 24, 2018, at 9:11 PM, Jim Laskey <james.laskey at oracle.com_ _<mailto:james.laskey at oracle.com>> wrote: >> >> There are several  approaches but the simplest is using strip().  Example, >> >>   `abc`.strip() >> >> Concat is another approach, >> >>   “” + abc + “” > > But this means the literal inside the constant pool of the class will be "abc ", right? This is a little uncomfortable to me. > That’s the plan. >> >> Not perfect but other delimiter choices also have these edge cases. > > How about the Rust r###"..."### style? > > Thanks > Max > >> >> Cheers, >> >> — Jim >> >> >> Sent from my iPad >> >>> On Nov 24, 2018, at 8:55 AM, Attila Kelemen <attila.kelemen85 at gmail.com <mailto:attila.kelemen85 at gmail.com>> wrote: >>> >>> Hi, >>> >>> Reading the JEP on raw string literals, I saw no mentions of the case when a string starts (or ends) with backtick. I guessed, that maybe the compiler will close the literal when it finds more than half the number of backticks than the beginning (nothing implied this behaviour just tried it and I know that it might be very suprising in other cases). I have tried with the latest early access compiler and (not too suprisingly) it didn't behave this way and simply failed when starting the literal with a backtick. >>> >>> My question is, of course: What is the strategy for this case? Or is it explicitly ignored as too much of an edge case (and left to the developer to deal with)? >>> >>> Thanks, >>> Attila Kelemen >> >

--

Cay S. Horstmann | http://horstmann.com | mailto:cay at horstmann.com

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