26 ./cond.tests: line 114: [[: 4+: syntax error: operand expected (error token is "+")
96 [[ $'\001' =~ $'\001' ]] -> 0
97 [[ $'\001' =~ $'\\\001' ]] -> 0
98 [[ $'\001' =~ $'\\[\001]' ]] -> 1
100 [[ $'\a' =~ $'\a' ]] -> 0
101 [[ $'\a' =~ $'\\\a' ]] -> 0
102 [[ $'\a' =~ $'\\[\a]' ]] -> 1
104 [[ $'\177' =~ $'\177' ]] -> 0
105 [[ $'\177' =~ $'\\\177' ]] -> 0
106 [[ $'\177' =~ $'\\[\177]' ]] -> 1