.{0,99} and .* behave differently on short input

[jorendorff]

Add these lines to test/test_syntax.c:

  x2("^\\s*B\\n\\s*M\\s*.{0,99}\\R", "B\n  M;\n", 0, 7);
  x2("^\\s*B\\n\\s*M\\s*.*\\R", "B\n  M;\n", 0, 7);

The output is:

OK: /^\s*B\n\s*M\s*.{0,99}\R/ 'B
  M;
'
FAIL: /^\s*B\n\s*M\s*.*\R/ 'B
  M;
'

RESULT   SUCC:  172,  FAIL: 1,  ERROR: 0      (by Oniguruma 6.9.8)

I think both regexes should match.

[tonco-miyazawa]

Below is another sample code.

  // issue 284
  x2("\\A.*\\R", "\n", 0, 1);       // .*   FAIL
  x2("\\A\\O*\\R", "\n", 0, 1);     //      FAIL
  x2("\\A\\n*\\R", "\n", 0, 1);     //      FAIL
  x2("\\A\\R*\\R", "\n", 0, 1);
  x2("\\At*\\R", "\n", 0, 1);

  x2("\\A.{0,99}\\R", "\n", 0, 1);   // {0,99}
  x2("\\A\\O{0,99}\\R", "\n", 0, 1);
  x2("\\A\\n{0,99}\\R", "\n", 0, 1);
  x2("\\A\\R{0,99}\\R", "\n", 0, 1);
  x2("\\At{0,99}\\R", "\n", 0, 1);

  x2("\\A.*\\n", "\n", 0, 1);       //  \n
  x2("\\A.{0,99}\\n", "\n", 0, 1);

  x2("\\A.*\\O", "\n", 0, 1);       //  \O 
  x2("\\A.{0,99}\\O", "\n", 0, 1);

  x2("\\A.*\\s", "\n", 0, 1);       //  \s
  x2("\\A.{0,99}\\s", "\n", 0, 1);

[kkos]

It did indeed FAIL in the first three cases.
I will look into the cause.