Todo

TODO

1. Correct search of multibyte characters. (done)
2. When substitute xml tag name, substitute its pair tag, too. (done)
3. When substitute matchpair ([, {, etc.) or quote, substitute its pair, too. (partially done, not yet for identical pairs) (done)
4. Grab cycle candidates from omni-completion function. (maybe not)
5. Refactor and freeze option names. (done)
6. Documentation. (done)
7. Cycle by regular expression rules. (usage?) (done)
8. Provide matched group as an user defined completion function.