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Support more generator expressions in output directories #515

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@Nopey Nopey commented May 9, 2024

Allows output directories that contain a few more generator expressions than just $<CONFIG>.

Useful if your binary output path contains something like $<$<CONFIG:Debug>:dbg>, which expands to "dbg" when building for Debug, and empty string otherwise.

TODO: Add tests

# $<0:true-string> ->
string(REGEX REPLACE "\\\$<0:([^>]*)>" "" genex "${genex}")
# $<IF:1,true-string,false-string> -> true-string
string(REGEX REPLACE "\\\$<IF:1,([^>,]*),([^>]*)>" "\\1" genex "${genex}")
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@jschwe jschwe May 9, 2024

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Perhaps we could use the cmake raw strings feature, so that you don't need all these escapes: https://cmake.org/cmake/help/latest/manual/cmake-language.7.html#bracket-argument

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