output bison

parser.y:192.8: error: invalid character in bracketed name: ‘0’
     : [0-9]
        ^
parser.y:192.9: error: invalid character in bracketed name: ‘-’
     : [0-9]
         ^
parser.y:192.10: error: invalid character in bracketed name: ‘9’
     : [0-9]
          ^
parser.y:192.11: error: an identifier expected
     : [0-9]
           ^
parser.y:292.17-18: warning: empty character literal [-Wother]
     : "'' Text "''
                 ^^
parser.y:301.8: error: invalid character in bracketed name: ‘\\’
     : [\x20-\x26]
        ^
parser.y:301.13: error: invalid character in bracketed name: ‘\\’
     : [\x20-\x26]
             ^
parser.y:301.14-16: error: unexpected identifier in bracketed name: ‘x26’
     : [\x20-\x26]
              ^^^
parser.y:302.8: error: invalid character in bracketed name: ‘\\’
     | [\x28-\x7E]
        ^
parser.y:302.13: error: invalid character in bracketed name: ‘\\’
     | [\x28-\x7E]
             ^
parser.y:302.14-16: error: unexpected identifier in bracketed name: ‘x7E’
     | [\x28-\x7E]
              ^^^
parser.y:302.9-12: error: syntax error, unexpected [identifier]
     | [\x28-\x7E]
         ^^^^
parser.y:303.8: error: invalid character in bracketed name: ‘\\’
     | [\xA]