flex: input rules are too complicated (>= 32000 NFA states)"

[nIxedoahz]

flex version 2.6.4

Error reported as follows

flex: input rules are too complicated (>= 32000 NFA states)"

How do I solve this problem without generating cpp files

[Mightyjo]

That's a fun error. Can you share your input file?

[nIxedoahz]

That's a fun error. Can you share your input file?

#define MAXIMUM_MNS 31999 If I modify this macro to: #define MAXIMUM_MNS 319999 Will it cause any problems

[Mightyjo]

It's a performance parameter for the Flex generation process. Increasing it might let Flex exhaust your system memory or make it take a very long time to produce your scanner.

It's hard to predict whether the generated scanner would be noticably slow or unusually large.

Did you try it? If so, what happened?