Module:IsLatin

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Example Usage

Text	Code	Result
Sports	{{#invoke:IsLatin|IsLatin|Sports}}	yes
Ştefăneşti	{{#invoke:IsLatin|IsLatin|Ştefăneşti}}	yes
大谷川ユースホステル	{{#invoke:IsLatin|IsLatin|大谷川ユースホステル}}	no
€55	{{#invoke:IsLatin|IsLatin|€55}}	yes
£55	{{#invoke:IsLatin|IsLatin|£55}}	yes
$55	{{#invoke:IsLatin|IsLatin|$55}}	yes

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local i = {}
 
function i.IsLatin(frame)
    local txt = frame.args[1];
    if txt == '' then
        return '';
    end
    
    local len = mw.ustring.len(txt);
    local pos = 1;
    while ( pos <= len ) do
        charval = mw.ustring.codepoint(mw.ustring.sub(txt, pos))
        -- note 8364 is the € symbol
        if charval>687 and charval~=8364 then
            return "no";
        end 
        pos = pos + 1;
    end
    return "yes";
end

return i;