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/^\.(\w+).+$\^\t+\.\w+\W+(\w+)/m
/(?:^|\n)\.(\w+).+\n\t+\.\w+\W+(\w+)/m
/(?:^|\n) # Start matching either at the start of the string # or at a newline. The ?: part means, that ... # tab and then a dot-word \W+(\w+) # and contain some other stuff as well ... /mx