Many regex failures

[H . J . Lu]

The CVS at 7pm PDT on July 12, "make check" failed in posix:

regexp: "[A-[.].]c]", string: "ab]!" -> no match, FAIL
regexp: "[[:alnum:]]*", string: " aB28gH" -> wrong match (0 to 0): FAIL
regexp: "[^[:alnum:]]*", string: "2     ,a" -> wrong match (0 to 0): FAIL
regexp: "[[:alpha:]]*", string: " aBgH2" -> wrong match (0 to 0): FAIL
regexp: "[[:digit:]]*", string: "a28" -> wrong match (0 to 0): FAIL
regexp: "[[:punct:]]*", string: "a,2" -> wrong match (0 to 0): FAIL
regexp: "[^[:space:]]*", string: " aB28gH,      " -> wrong match (0 to 0): FAIL
regexp: "[[:upper:]]*", string: "aBH2" -> wrong match (0 to 0): FAIL
regexp: "[[:xdigit:]]*", string: "gaB28h" -> wrong match (0 to 0): FAIL
regexp: "[^[:xdigit:]]*", string: "a    gH,2" -> wrong match (0 to 0): FAIL
regexp: "[A-[.].]c]", string: "ab]!" -> no match, FAIL


H.J.