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0bc943ad54
* Allow use of colons inside fmt allowing colons inside fmt by replacing the format specifier delimiter lets arbitrary nim code be run within fmt expressions. Co-authored-by: flywind <xzsflywind@gmail.com> * formatting,documentation,backslash escapes Adding support for evaluating expressions by special-casing parentheses causes this regression: `&"""{ "(hello)" }"""` no longer parses. In addition, code such as &"""{(if open: '(' else: ')')}""" wouldn't work. To enable that, as well as the use of, e.g. Table constructors inside curlies, I've added backslash escapes. This also means that if/for/etc statements, unparenthesized, will work, if the colons are escaped, but i've left that under-documented. It's not exactly elegant having two types of escape, but I believe it's the least bad option. * changelog * added json strformat test * pulled my thumb out and wrote a parser Co-authored-by: Andreas Rumpf <rumpf_a@web.de> Co-authored-by: flywind <xzsflywind@gmail.com>