1 { REG_OKAY,	"REG_OKAY",	"no errors detected" },

     2 { REG_NOMATCH,	"REG_NOMATCH",	"failed to match" },

     3 { REG_BADPAT,	"REG_BADPAT",	"invalid regexp (reg version 0.8)" },

     4 { REG_ECOLLATE,	"REG_ECOLLATE",	"invalid collating element" },

     5 { REG_ECTYPE,	"REG_ECTYPE",	"invalid character class" },

     6 { REG_EESCAPE,	"REG_EESCAPE",	"invalid escape \\ sequence" },

     7 { REG_ESUBREG,	"REG_ESUBREG",	"invalid backreference number" },

     8 { REG_EBRACK,	"REG_EBRACK",	"brackets [] not balanced" },

     9 { REG_EPAREN,	"REG_EPAREN",	"parentheses () not balanced" },

    10 { REG_EBRACE,	"REG_EBRACE",	"braces {} not balanced" },

    11 { REG_BADBR,	"REG_BADBR",	"invalid repetition count(s)" },

    12 { REG_ERANGE,	"REG_ERANGE",	"invalid character range" },

    13 { REG_ESPACE,	"REG_ESPACE",	"out of memory" },

    14 { REG_BADRPT,	"REG_BADRPT",	"quantifier operand invalid" },

    15 { REG_ASSERT,	"REG_ASSERT",	"\"can't happen\" -- you found a bug" },

    16 { REG_INVARG,	"REG_INVARG",	"invalid argument to regex function" },

    17 { REG_MIXED,	"REG_MIXED",	"character widths of regex and string differ" },

    18 { REG_BADOPT,	"REG_BADOPT",	"invalid embedded option" },