vim-patch: 7.4.330

Problem:    Using a regexp pattern to highlight a specific position can
be slow.
Solution:   Add matchaddpos() to highlight specific positions
efficiently.
(Alexey Radkov.)

https://code.google.com/p/vim/source/detail?r=f9fa2e506b9f07549cd91074835c5c553db7b3a7
vim-patch: 7.4.334

Problem:    Unitialized variables, causing some problems.
Solution:   Initialize the variables. (Dominique Pelle)

https://code.google.com/p/vim/source/detail?r=03d260a8ea0c0c67f424c387dbe2af5754e5e589
vim-patch: 7.4.362

Problem:    When matchaddpos() uses a length smaller than the number of
bytes in the (last) character the highlight continues until the end of
            the line.
Solution:   Change condition from equal to larger-or-equal.

https://code.google.com/p/vim/source/detail?r=7fa2bed947fde3514a700c96861a537d816d6fd4
vim-patch: 7.4.343

Problem:    matchdelete() does not always update the right lines.
Solution:   Fix off-by-one error.  (Ozaki Kiichi)

https://code.google.com/p/vim/source/detail?r=539ce56d8f35fe2deb5c4f57335e1adf97ae4e74
vim-patch: 7.4.344

Problem:    Unnecessary initializations and other things related to
	    matchaddpos().
Solution:   Code cleanup. (Alexey Radkov)

https://code.google.com/p/vim/source/detail?r=ce284c205558d103326a4c3f22f181774690b3eb
Merge pull request #1107 from fmoralesc/matchaddpos

Add matchaddpos()-related vim patches. [vim-patch: 7.4.330, 7.4.334, 7.4.343, 7.4.344, 7.4.362]
memory: memcnt and strcnt.
memory: xstrchrnul and xmemscan.
memory: memchrsub and strchrsub
vim-patch:7.4.242

Problem:    getreg() does not distinguish between a NL used for a line
            break and a NL used for a NUL character.
Solution:   Add another argument to return a list. (ZyX)

https://code.google.com/p/vim/source/detail?r=v7-4-242
Add vroom test for getreg.
Return void * from get_reg_contents.
vim-patch:7.4.243

Problem:    Cannot use setreg() to add text that includes a NUL.
Solution:   Make setreg() accept a list.

https://code.google.com/p/vim/source/detail?r=v7-4-243
Refactor str_to_reg().

- Update the doxygen comments.
- Use more descriptive types.
- Localize variables.
- Find the '\n' with memchr instead of a for loop.
- Remove `if (size)` checks before memmove
  since memmove(dst,src,0) is a noop.
- Use memcpy instead since the pointers don't alias.
- Use xmemdupz instead of vim_strnsave.
- xrealloc instead of xmalloc/memcpy.
- Use memcnt/xmemscan/memchrsub.
vim-patch:7.4.249

Problem:    Using setreg() with a list of numbers does not work.
Solution:   Use a separate buffer for numbers. (ZyX)

https://code.google.com/p/vim/source/detail?r=v7-4-249
Attribute/constify get_tv_string(_buf(_chk)).