26 ./cond.tests: line 101: [[: 4+: syntax error: operand expected (error token is "+")
91 [[ $'\001' =~ $'\001' ]] -> 0
92 [[ $'\001' =~ $'\\\001' ]] -> 0
93 [[ $'\001' =~ $'\\[\001]' ]] -> 1
95 [[ $'\a' =~ $'\a' ]] -> 0
96 [[ $'\a' =~ $'\\\a' ]] -> 0
97 [[ $'\a' =~ $'\\[\a]' ]] -> 1
99 [[ $'\177' =~ $'\177' ]] -> 0
100 [[ $'\177' =~ $'\\\177' ]] -> 0
101 [[ $'\177' =~ $'\\[\177]' ]] -> 1