[Vim] Replace Footnote by Regular Expression

Replace footnote in reStructuredText format via regular expression in Vim editor.

(註1-1) => `` [1]_ ``

:%s/(註1-\(\d\{1}\))/ [\1]_ /gc

〔註1-1〕： => `` .. [1] ``

:%s/^〔註1-\(\d\{1}\)〕：/.. [\1] /gc

[001] => [001]_

:%s/\[\(\d\{3}\)\]/\[\1\]_/gc

001 => [001]_

:%s/\(\d\{3}\)/\[\1\]_/gc
:%s/\(0\d\{2}\)/\[\1\]_/gc

)[001]_ => ) [001]_

:%s/)\(\[\d\{3}]_\)/) \1/gc

〔註001〕 => `` .. [001] ``

:%s/^〔註\(0\d\{2}\)〕/.. [\1] /gc

Tested on Ubuntu Linux 15.10, vim 2:7.4.712-2ubuntu4.

References: