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Disambiguating unary and binary minus #1

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wh5a opened this issue Jul 29, 2020 · 0 comments

wh5a commented Jul 29, 2020

A statement like "cu1(-pi) q[0], q[1];" cannot be parsed correctly, unless we insert a space like so: "cu1(- pi) q[0], q[1];".

The grammar needs to be changed. A quick search found some discussions:
https://stackoverflow.com/questions/32166738/disambiguating-unary-and-binary-minus-in-antlr4-grammar
https://stackoverflow.com/questions/27478834/how-compiler-distinguishes-minus-and-negative-number-during-parser-process

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