Re: Why does &"""{"total":23}""" compile but &"""{"total:":23}""" not compile?
Quoted closers are indeed another wrinkle. If you want a one pass algo you can just track the index of the last `':'` and use it only after you pass the final unquoted closer having framed the two parts. Still doesn't sound hard to have less brittle framing, but effort worth is always subjective. Nim does use `':'` a lot. Maybe @TKurtBond could do the PR? :-)
Re: Why does &"""{"total":23}""" compile but &"""{"total:":23}""" not compile?
No, because you need to find the `}` first. The correct solution is to
anticipate quotes then track escape sequences, and track `(`/`[`/`{` opens and
wait for them to close.
Re: Why does &"""{"total":23}""" compile but &"""{"total:":23}""" not compile?
As long as `':'` is not allowed in `fmt` part of `{expr:fmt}`, you can probably
just frame the `expr` by doing an `rfind` on ':' instead of a `find` (last
rather than first), no?
Re: Why does &"""{"total":23}""" compile but &"""{"total:":23}""" not compile?
The quirk is bad but also: String literals inside string literals are ugly.
Re: Why does &"""{"total":23}""" compile but &"""{"total:":23}""" not compile?
The issue is in strformat, it parses until it hits a colon then it gives what
it has to Nim to parse an expression ([relevant
lines](https://github.com/nim-lang/Nim/blob/eca8f1d79f712613437918e397f7abb58bc29515/lib/pure/strformat.nim#L553-L559)).
So the following also fails:
import strformat
type Foo = object
num: int
echo &"""<{Foo(num: 3)}>"""
Run
You can report bugs with the compiler or standard library on the [GitHub issue
tracker](https://github.com/nim-lang/Nim/issues).
Why does &"""{"total":23}""" compile but &"""{"total:":23}""" not compile?
The file
import strformat
echo &"""<{"total":23}>"""
Run
compiles fine.
The file
import strformat
echo &"""<{"total:":23}>"""
Run
does not compile. The only difference is the colon (:) after total in the
second file.
Aren't they both string constants?
The strformat documentation refers to the 'fmt"{expr}"' syntax. Is that a full
nim expression, or is more limited? (I didn't see an explanation in in
strformat.)
