cannot handle recursive expansion from token pasting

mycoboco / beluga

a standard C compiler (with an integrated preprocessor)

http://code.woong.org/beluga

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Closed mycoboco closed 6 years ago

mycoboco commented 6 years ago

beluga falls into infinite recursion with

#define paste(q, r) q ## r
#define foobar paste(foo, bar)

foobar

because fails to paint tokens from ## in blue.