This brand new development version of re2c comes with initial support for (f)lex like conditions. That is, this version is the first step towards full condition support where re2c checks for a condition and based on that switches to a specific sub block handling only rules for that specific condition.
This verison is fully compatible with older versions and in fact you need the new switches -c and -t to get condition support. Also a lot of new inplace configurations have been added.
Check out the manual or man page for new stuff.
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