Flags for ${...} syntax for re_interpolate#520
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Subsequent digits are treated as literal characters. So e.g. "\0123" means group \0 followed by literal "123".
Currently I'm supporting digits here only. In the future named groups would go here too.
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Suggested by Leon, thanks.
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cxreg
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This seems understandable and correct to me, thanks!
This was referenced Jul 10, 2026
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Exciting things I do here:
re_interpolate(), I decided I just like the shorter name. I'm keeping it in <re/groups.h> because I expect other groups-related things to land thereRE_INTERPOLATE_SINGLE_DIGITtreats subsequent digits after the first as literals. so e.g.\123means\1followed by a literal "23"RE_INTERPOLATE_BRACESallows for writing${11}1meaning group 11 followed by a literal "1"named captures would also go inside the
{...}syntax, but I don't want to introduce that yet.