mandoc: invalid.in:7:15: WARNING: invalid escape sequence argument: \[ 
mandoc: invalid.in:8:14: ERROR: invalid special character: \[%]
mandoc: invalid.in:9:16: ERROR: invalid special character: \[&]
mandoc: invalid.in:10:12: ERROR: invalid special character: \[:]
mandoc: invalid.in:11:12: ERROR: invalid special character: \[^]
mandoc: invalid.in:12:16: ERROR: invalid special character: \[_]
mandoc: invalid.in:13:11: ERROR: invalid special character: \[|]
mandoc: invalid.in:14:12: ERROR: invalid special character: \[~]
mandoc: invalid.in:15:18: ERROR: invalid special character: \[0]