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Unify the token-pasting code between the macro expansion and the
preprocessor parameter case. Parameterize whether or not to handle %+
tokens during expansion (%+ tokens have late binding semantics.)
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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"+" can be a separate token that ends up having to get pulled into the
middle of a floating-point constant. It's not even that strange.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Especially when token pasting involves floating-point numbers, we can
have some really strange effects from token pasting: for example,
pasting the two tokens "xyzzy" and "1e+10" ends up with *three*
tokens: "xyzzy1e" "+" "10". The easiest way to deal with this is to
explicitly combine the string and then run tokenize() on it.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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