Re: Why does &"""{"total":23}""" compile but &"""{"total:":23}""" not compile?

[Hlaaftana]

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).