bug#21266: [PATCH] dfa: simplify for non-POSIX locales

[Paul Eggert]

Thanks, I merged those two patches and installed them into the grep 
master, with minor adjustments to the commit messages. I also installed 
two minor fixup patches, mostly fixing minor style issues. I did notice 
one minor technical issue; the second patch had code that looked like this:

 +  context = (wc == (wchar_t) eolbyte || wc == 0) ? CTX_NEWLINE : CTX_NONE;

I realize this came from the old wchar_context function, but I don't see 
why that "|| wc == 0" is there, so I removed it. The tests still pass. 
If you (or someone else) can explain why it's needed I can put it back in.

Attached are the four patches I installed; the first and third are your 
patches and the second and fourth are the fixups.

0001-dfa-simplify-for-non-POSIX-locales.patch
Description: Text Data

0002-dfa-minor-cleanups-for-non-POSIX-simplification.patch
Description: Text Data

0003-dfa-don-t-distingish-letter-in-non-POSIX-locales.patch
Description: Text Data

0004-dfa-don-t-treat-null-bytes-specially.patch
Description: Text Data