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Modul:Sort

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Die Dokumentation für dieses Modul kann unter Modul:Sort/Doku erstellt werden

local Sort = { suite  = "Sort",
               serial = "2018-03-22",
               item   = 24205172 }
--[=[
Sort
]=]




Sort.lex = function ( adjust, apply, adapt )
    -- Build ASCII sortkey for text value
    -- Precondition:
    --     adjust  -- string to be aligned
    --     apply   -- string or table, with base
    --                "latin"
    --     adapt   -- string or table, with variation, or false
    --                "DIN5007m2"  -- DIN 5007 mode "2"
    local r = adjust
    if adapt  or  not r:match( "^[ -~]*$" ) then
        local storage = string.format( "Module:%s/", Sort.suite )
        local collate, lucky, post, pre
        if apply then
            collate = apply
        else
            collate = "uni"
        end
        if type( collate ) == "string" then
            lucky, collate = pcall( mw.loadData,  storage .. collate )
        end
        if adapt  and  type( collate ) == "table" then
            local variants = type( adapt )
            local n
            if variants == "string" then
                variants = mw.text.split( adapt, "%s+" )
            elseif variants == "table" then
                variants = adapt
            else
                variants = { }
            end
            n = #variants
            if n == 1  and  variants[ 1 ] == "" then
                n = 0
            end
            if n > 0 then
                local tmp = { }
                local var
                for k, v in pairs( collate ) do
                    tmp[ k ] = v
                end    -- for k, v
                collate = tmp
                for i = 1, n do
                    lucky, tmp = pcall( mw.loadData,
                                        storage .. variants[ i ] )
                    if type( tmp ) == "table" then
                        var = tmp.single
                        if type( var ) ~= "table" then
                            -- legacy
                            var = tmp
                        end
                        if type( var ) == "table" then
                            for k, v in pairs( var ) do
                                collate[ k ] = v
                            end    -- for k, v
                        end
                        var = tmp.pre
                        if type( var ) == "table" then
                            if type( pre ) ~= "table" then
                                pre = { }
                            end
                            for k, v in pairs( var ) do
                                pre[ k ] = v
                            end    -- for k, v
                        end
                        var = tmp.post
                        if type( var ) == "table" then
                            if type( post ) ~= "table" then
                                post = { }
                            end
                            for k, v in pairs( var ) do
                                post[ k ] = v
                            end    -- for k, v
                        end
                    elseif lucky then
                        collate = "Invalid table " .. variants[ i ]
                        break    -- for i
                    else
                        collate = tmp
                        break    -- for i
                    end
                end    -- for i
            end
        end
        if type( collate ) == "table" then
            local k, n, s, start
            if type( pre ) == "table" then
                for k, v in pairs( pre ) do
                    r = mw.ustring.gsub( r, k, v )
                end    -- for k, v
            end
            n = mw.ustring.len( r )
            for i = n, 1, -1 do
                k = mw.ustring.codepoint( r, i, i )
                if k < 127 then    -- ASCII
                    s = ( k < 32 )    -- htab newline whitespace
                    if s then
                        s = " "
                    end
                elseif (k >=   768  and  k <=   866)   or
                       (k >=  6832  and  k <=  6911)   or
                       (k >=  7616  and  k <=  7679)   or
                       (k >= 65056  and  k <= 65071) then
                    -- COMBINING ...
                    s = ""
                else
                    s = collate[ k ]
                end
                if s then
                    if i > 1 then
                        s = mw.ustring.sub( r, 1,  i - 1 )  ..  s
                    end
                    r = s .. mw.ustring.sub( r,  i + 1 )
                end
            end    -- for i--
            if type( post ) == "table" then
                for k, v in pairs( post ) do
                    r = mw.ustring.gsub( r, k, v )
                end    -- for k, v
            end
        else
            r = "**ERROR** Sort.lex ** Submodule unavailable " .. collate
        end
    end
    r = r:gsub( "  +", " " )
    return r
end -- Sort.lex()



Sort.num = function ( adjust, ad, at, align, absolute )
    -- Build sortkey for heading numerical value
    -- Precondition:
    --     adjust    -- string to be aligned; leading digits / minus
    --     ad        -- decimal separator; "." or ","; defaults to "."
    --     at        -- thousands group separator; defaults to none
    --                  ","  "."  "'"
    --     align     -- number of leading zeros / maximum length
    --                  defaults to 15
    --     absolute  -- negative figures by digits; default: by value
    -- Postcondition:
    --     Returns string with sortkey
    local max    = 15
    local mid    = 46    -- "."
    local min1   = -1    -- none
    local min2   = -2    -- none
    local low    = false
    local last   = false
    local lead   = true
    local source = tostring( adjust )
    local sub    = "."
    local suffix = false
    local n      = mw.ustring.len( source )
    local r      = ""
    local c
    if ad then
        mid = mw.ustring.codepoint( ad, 1, 1 )
    end
    if at then
        min1, min2 = mw.ustring.codepoint( at, 1, 2 )
    end
    if align then
        max = align
    end
    for i = 1, n do
        c = mw.ustring.codepoint( source, i, i )
        if c > 32 then    -- not whitespace
            if c >= 48 and c <= 57 then    -- digits
                r   = string.format( "%s%c", r, c )
                max = max - 1
            elseif c == min1 or c == min2 then    -- group separator
            elseif c == mid then    -- decimal separator
                 for j = i + 1, n do
                     c = mw.ustring.codepoint( source, j, j )
                     if c >= 48 and c <= 57 then    -- digits
                         sub = string.format( "%s%c", sub, c )
                     elseif c == min1 or c == min2 then    -- grouping
                     else
                         i = j
                         break    -- for j
                     end
                     i = n
                 end    -- for j
                 last = true
            elseif lead then
                if c == 45 or c == 8722 then    -- minus
                    low = true
                elseif c ~= 43 then    -- plus
                    last = true
                end
            else
                last = true
            end
            lead = false
        elseif not lead then    -- whitespace not leading
            last = true
        end
        if last then
            if i < n then
                suffix = mw.ustring.sub( source, i )
                if c == 69  or  c == 101 then    -- E e
                    local s = suffix:match( "^[Ee](-?%d+)" )
                    if s then
                        j      = tonumber( s )
                        sub    = sub:sub( 2 )
                        suffix = suffix:sub( #s + 2 )
                        if j > 0 then
                            if j > #sub then
                                sub = sub .. string.rep( "0",  j - #sub )
                            end
                            r   = r .. sub:sub( 1, j )
                            sub = sub:sub( j + 1 )
                            max = max - j
                        elseif j < 0 then
                            j = - j
                            if j > #r then
                                r = string.rep( "0",  j - #r ) .. r
                            end
                            sub = r:sub( - j ) .. sub
                            r   = r:sub( 1,  #r - j )
                            max = max + j
                        end
                        sub = "." .. sub
                    end
                end
            end
            break    -- for i
       end
    end    -- for i
    if low then
        if not absolute then   -- complementary value
            local s    = "."
            local cmpl = function ( str, k )
                             return 57 - str:byte( k )
                         end
            for i = 2, #sub do
                s = string.format( "%s%d",  s,  cmpl( sub, i ) )
            end    -- for i
            for i = #r, 1, -1 do
                s = string.format( "%d%s",  cmpl( r, i ),  s )
            end    -- for i--
            r = s
            if max > 0 then
                r = string.rep( "9", max )  ..  r
            end
            sub = false
            max = 0
        end
    end
    if sub then
        r = r .. sub
    end
    if max > 0 then
        r = string.rep( "0", max )  ..  r
    end
    if low then
        r = "-" .. r
    end
    if suffix then
        r = string.format( "%s %s", r, suffix )
    end
    return r
end -- Sort.num()



Sort.failsafe = function ( assert )
    -- Retrieve versioning and check for compliance
    -- Precondition:
    --     assert  -- string, with required version or "wikidata",
    --                or false
    -- Postcondition:
    --     Returns  string with appropriate version, or false
    local since = assert
    local r
    if since == "wikidata" then
        local item = Sort.item
        since = false
        if type( item ) == "number"  and  item > 0 then
            local entity = mw.wikibase.getEntity( string.format( "Q%d",
                                                                 item ) )
            if type( entity ) == "table" then
                local vsn = entity:formatPropertyValues( "P348" )
                if type( vsn ) == "table"  and
                   type( vsn.value) == "string" and
                   vsn.value ~= "" then
                    r = vsn.value
                end
            end
        end
    end
    if not r then
        if not since  or  since <= Sort.serial then
            r = Sort.serial
        else
            r = false
        end
    end
    return r
end -- Sort.failsafe()



-- Export
local p = { }

p.Tlatin = function ( frame )
    -- Template::latin
    --     {{{1}}}
    -- #invoke
    --     v  -- variant, omitted or "DIN5007m2"
    local lucky, r = pcall( Sort.lex,
                            frame.args[ 1 ]  or
                            frame:getParent().args[ 1 ]  or
                            "",
                            "latin",
                            frame.args.v )
    return r;
end -- p.Tlatin



p.Tn = function ( frame )
    -- Template::numerical
    --     {{{1}}}
    -- #invoke
    --     d  -- decimal separator; defaults to "."
    --     t  -- thousands group separator; defaults to none
    --     z  -- number of leading zeros / maximum length; defaults to 15
    --     m  -- negative figures by digits; default: by value
    local lucky, r = pcall( Sort.num,
                            frame.args[ 1 ]  or
                            frame:getParent().args[ 1 ]  or
                            "",
                            frame.args.d,
                            frame.args.t,
                            tonumber( frame.args.z ),
                            frame.args.m == "1" )
    return r;
end -- p.Tn



p.failsafe = function ( frame )
    -- Versioning interface
    local s = type( frame )
    local since
    if s == "table" then
        since = frame.args[ 1 ]
    elseif s == "string" then
        since = frame
    end
    if since then
        since = mw.text.trim( since )
        if since == "" then
            since = false
        end
    end
    return Sort.failsafe( since )  or  ""
end -- p.failsafe()



p.Sort = function ()
    return Sort
end -- p.Sort

return p