Module:Citation

Documentation for this module may be created at Module:Citation/doc

local p = {}

function anchorid(frame)
    local P1 = frame.args[1] or ""
    local P2 = frame.args[2] or ""
    local P3 = frame.args[3] or ""
    local P4 = frame.args[4] or ""
    local P5 = frame.args[5] or ""
    return "CITEREF" .. P1 .. P2 .. P3 .. P4 .. P5
end

function name(frame)
    local P1 = frame.args[1] or ""
    if ( frame.args[5] ~= nil) then
        return P1 .. " et al."
    else
        local P2 = frame.args[2] or ""
        local P3 = frame.args[3] or "" 
        local P4 = frame.args[4] or ""
        if ( frame.args[4] ~= nil ) then
            P4 = " & " .. P4
        end
        if ( frame.args[3] ~= nil ) then
            P3 = " & " .. P3
        end
        if ( frame.args[2] ~= nil ) then
            P2 = " & " .. P2
        end
        return P1 .. P2 .. P3 .. P4
    end 
end

function crossref(frame)
    local LB = frame.BracketLeft or ""
    local RB = frame.BracketRightt or ""
    local anchor = frame.ref or frame.Ref or anchorid(frame)
    local text = name(frame)
    local loc = frame.loc or ""
    local page = frame.p or frame.page or nil
    local pages = frame.pp or frame.pages or nil
    if ( page ~= nil ) then
        local pagesep = frame.PageSep or ""
        text = text .. pagesep .. page
    end
    if ( pages ~= nil ) then
        local pagessep = frame.PagesSep or ""
        text = text .. pagessep .. pages
    end        
    local ps = frame.Postscript or ""
    return LB .. "[[#" .. anchor .. "|" .. text .. "]]" .. RB .. ps
end

-- This is used by templates such as {{SfnRef}} to create the (encoded) anchor name for a Harvard cross-reference hyperlink.
function p.SFNID(frame)
    local pframe = frame:getParent()
    return anchorid(pframe)
end

-- This is used by templates such as {{Harvard citation}} to create the Harvard cross-reference text.
function p.Harvard(frame)
    local pframe = frame:getParent()
    return crossref(pframe)
end

-- This is used by templates such as {{sfn}} to create the entire cross-reference.
function p.sfn(frame)
    local pframe = frame:getParent()
    local content = crossref(pframe)
    local args = { name = anchorid(pframe) }
    return mw.text.tag({name = "ref", contents = content, params = args})
end

return p