Module:Hepburner

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Romanizes double vowels per the standard outlined in Hepburn Romanization.
Implemented in Template:Hepburn - Please use this instead of using this directly. It enforces subst for this *very* costly module.

Any double vowels will get converted to a long vowel, ou will get converted to ō.

{{#invoke:Hepburner|toHepburn|Kinou}} =>
{{#invoke:Hepburner|toHepburn|Ooki}} =>
{{#invoke:Hepburner|toHepburn|kara-age}} =>
{{#invoke:Hepburner|toHepburn|sakkaa}} =>
{{#invoke:Hepburner|toHepburn|raamen}} =>
{{#invoke:Hepburner|toHepburn|ヴィデオ}} =>
{{#invoke:Hepburner|toHepburn|いこう}} =>
{{#invoke:Hepburner|toHepburn|やった}} =>
{{#invoke:Hepburner|toHepburn|いきましょう}} =>
{{#invoke:Hepburner|toHepburn|ちゅうにびょう}} =>
{{#invoke:Hepburner|toHepburn|つづく}} =>
note: oU aA or the like will break it. You should never, ever, ever do this regardless, but note that is a limitation. If you need that, add it to the list, following the current pattern.

The above documentation is transcluded from Module:Hepburner/doc. (edit | history)
Editors can experiment in this module's sandbox (create | mirror) and testcases (edit | run) pages.
Subpages of this module.

require('strict');
-- Converts romanji input to modified hepburn, I recommend subst:ing
p = {}
-- standard long vowel patterns
local diacritics = {
    ["aa"] = "ā",
    ["ii"] = "ī",
    ["uu"] = "ū",
    ["ee"] = "ē",
    ["oo"] = "ō",
    ["ou"] = "ō",
    ["Aa"] = "Ā",
    ["Ii"] = "Ī",
    ["Uu"] = "Ū",
    ["Ee"] = "Ē",
    ["Oo"] = "Ō",
    ["Ou"] = "Ō",
    ["AA"] = "Ā",
    ["II"] = "Ī",
    ["UU"] = "Ū",
    ["EE"] = "Ē",
    ["OO"] = "Ō",
    ["OU"] = "Ō"
}

--input: 1:1 transliterated romanji
function p.toHepburn(frame, romanji) 
	for target, replacement in pairs(diacritics) do
        romanji = romanji:gsub(target, replacement) 
    end
    return romanji
end

return p