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Are you using MAC? For tests please try:

$ make && bash test.sh

with 'bash' instead.

For the second part it is a bug in the README. Thank you for pointing this out! I had to be more careful before the publication. Fixed. Try '-ma' flags instead.

$echo '' | trre -ma ':(0|1){,3}?'



I'm using Linux.


Did it solve the problem? I guess the issue is the process substitution construction of bash "<()". Not all shells support this.




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