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--[===[

MODULE "KAT"

"eo.wiktionary.org/wiki/Modulo:kat" <!--2024-Oct-11-->

Purpose: automatically generated content for categories

Utilo: auxtogenerita enhavo por kategorioj

Manfaat: isi dibangkitkan secara otomatis untuk kategori

Syfte: automatiskt genererat innehaall foer kategorier

Used by templates / Uzata far sxablonoj:
* only "kat" (not to be called from any other place)

Required submodules / Bezonataj submoduloj / Submodul yang diperlukan:
* "loaddata-tbllingvoj" T78 T80 in turn requiring template "tbllingvoj" (EO)
* "loaddata-tblbahasa" T78 T80 in turn requiring template "tblbahasa" (ID)

Required images:
* "Vista-folder open.png"
* "Hidden icon.png"
* "User-invisible.svg"
* "Nuvola filesystems folder template.png"

Required templates:
* YES, see above

This module can accept parameters whether sent to itself (own frame) or
to the caller (caller's frame). If there is a parameter "caller=true"
on the own frame then that own frame is discarded in favor of the
caller's one.

Incoming: * no ordinary parameters
          * 3 hidden named and optional parameters
            * "pagenameoverridetestonly=" can directly cause #E01
            * "nsnumberoverridetestonly=" can indirectly cause #E10
            * "detrc=" no error possible

Returned: * one string with visible part (HTML box) and category part,
            or red error and tracking category part

All relevant information is peeked from the pagename and thus
ordinary parameters are not used.

To be called from category namespace only.

This module reads out the pagename, dissects it consulting relevant
lists (both built-in and via other modules), displays a suitable header
for the category, including a TOC if appropriate, hides the category
if appropriate, and cares about insertion into parent categories.

There are three steps all controlled by ONE common LUA table with patterns:
* identify the pagename resulting in a LUA table with details
* brew the visible text later showed in a box (plus determine icon and colour)
* brew the parent cat insertions

For the procesing here, following details are defined:
* LK langcode
* lk other langcode
* LN langname short (for example "dana" or "Ido")
* LU langname short uppercased (for example "Dana" or "Ido")
* LO langname short not own (empty if own)
* LY langname long (for example "bahasa Swedia")
* LV langname short uppercased not own (empty if own)
* LZ langname long not own (empty if own)
* WC word class (for example "substantivo")
* wc other word class
* GR grammar detail such as "uncountable noun"
* MI other detail such as "misspelling"
* WU word class uppercased (for example "Substantivo")
* TO topic
* TU topic uppercased
* LL language level 0...4 or 0...5 or "D"
* MT mortyp C I M N P U
* SK script code T S K P H C L
* SC langcode + script code zhT zhS zhK zhP jaK jaH jaR hrC hrL
* FR fragment (for example "peN-...-an" or "abelujo")
* LA link to appendix page raw
* LB link to appendix page showing langname short
* LJ link to appendix page showing langname short adjectivized and plural
Those are used in several contexts, but not the full set is applicable in
every context:
* pattern for parsing the pagename, they apprear in the strig prefixed by "@"
* pattern for generating visible text, they apprear in the string
  prefixed by "@"
* pattern for generating parent categories, they apprear in the string
  prefixed by "@"
* LUA table passed from the parsing stage into the generation stage, the
  strings listed above appear as string keys without "@"
Two are lowercase "lk" and "wc" whereas all other are uppercase.

Types of categories by content and icon showed are:
* G generic
* H hidden
* U user
* T template

Types of categories by title structure are:
* simple raw such as "Substantivo" or "Kemio" or "Sveda"
  -> no fixed pattern at all
  -> cannot be validated without running through all lists (languages,
     word classes, topics)
* double raw such as "Substantivo (sveda)" or "Kemio (sveda)"
  -> insufficient fixed pattern such as "("...")"
  -> cannot be validated without running through all lists (languages,
     word classes, topics)
* mostly identifiable such as "El Sanskrito"
  -> contain a pattern than is sufficient for reliable identification
     together with absence of other pattern such as "("...")"
* reliably identifiable such as "Vortaro (indonezia)" or "El Sanskrito (Ido)"

Pattern for parsing the pagename can contain following variable elements:
* LK, LN, LU, LY, WC, GR, MI, WU, TO, TU, LL, MT, SK, SC, FR

The variable elements belong to three groups:
* directly listed: LK LN WC GR MI TO LL MT SK SC
* indirectly listed: LU LY WU TU
* fully free and not listed: FR

Parsing steps:
* no lists used:
  * apply the 3 steps "preliminary check" and "double bracket separation"
    and "extra final letter separation" with help of "lfhthree3steps", on
    error however throw #E13 (bad char or doublechar) or #E14 (bad bracketing)
  * report (3 integers and 4 strings)
    * number of slashes
    * number of colons
    * number of pairs of brackets 0...2
    * content of zero:th pair of brackets (can be empty)
    * content of first pair of brackets (can be empty)
    * extra final stuff (can be empty)
    * remaining content (cannot be empty)
* many lists used:
  * there are lists of patterns, languages, word classes, topics
  * list of patterns is sorted from "reliably identifiable" to "simple raw"
  * walk through the list of patterns, pick and test pattern after pattern
  * on every pattern apply the 3 steps "preliminary check" and "double
    bracket separation" and "extra final letter separation" with help of
    "lfhthree3steps", on error however throw #E01 for both status
    codes 13 and 14
  * compare results of those steps on incoming pagename vs tested pattern
  * buy the title if minimal requirements are met, for example buy not
    only "Vortaro (indonezia)" but also "Vortaro (stultulo)" since the
    latter lacks chance to match another pattern

The identified title is reported in the form of a LUA table. Details are
standardized to a reduced set
* LK (convert from LN LU LY)
* WC (convert from WU)
* GR
* MI
* TO (convert from TU)
* LL
* MT
* SC
* FR

Unfortunately certain elements can occur two times, namely language
(for etymological cat:s) and word class (for derived words). The final
LUA table contains following string keys (type "nil" if unused):
* type -- one of many
* LK
* lk -- other language
* WC
* wc -- other word class
* GR
* MI
* TO
* LL
* MT
* SK -- without attached langcode
* FR
Those elements are used to brew the text (plus determine the icon and
colour) as well as parent categories.

Unfortunately wikis define some dialects and scripts that we have to support
natively here ie circumventing our central language and dialect tables:
* en-GB, en-CA (but NOT "en-US")
* de-AT
* zh-Hans, zh-Hant

In order to ensure the correct order of analyzing from "reliably identifiable"
to "simple raw" we reprocess the LUA table with patterns. The incoming table
has string keys and subtables as values, every subtable has numerical indexes
starting at ONE. What we do is to brew a new table with numerical indexes,
taking elements in the corect order from "reliably identifiable" to "simple
raw" walking through the source table 4 times, and replace the value at index
ONE having the sortorder hint by the key from the source table. That way we
do no longer have to rely on "pairs" when parsing the pagename, and do not
have to bother with sortorder.

So far 6 or 8 types of pagename patterns after "Kategorio:" are recognized:
* G "El la anglosaksa" "El Sanskrito"
    * has opposite cat
    * in cat "Sanskrito" no hint and
      in cat "Laux fonta lingvo" langname is hint
* G "Laux stilo (indonezia)"
* H "Tradukoj (indonezia)" needs __HIDDENCAT__ except "Tradukoj (Esperanto)"
* U "Vikivortaristo mi"
    * in cat "Vikivortaristo laux lingvo" langcode is hint
* U "Vikivortaristo mi-D"
    * in cat "Vikivortaristo mi" level is hint
* G "Vortaro (indonezia)"
* T "SXablonaro -ay-"                                                 !!!FIXME!!! not yet "kat-specifa-lng"
    * in cat "Ajmara" no hint and
      in cat "SXablonaro pri specifa lingvo" langcode is hint
* H "Pagxoj kun sondosiero (tamila)"                                  !!!FIXME!!! not yet "kat-sono"
    * in cat "Tamila" with fixed hint "sond" and
      in cat "Pagxoj kun sondosiero" langname is hint

Tracking categories:
* #E06 "Kategori:Auxtokato kun nesubtenata pagxonomo"
* #E07 "Kategori:Auxtokato kun nekonata lingvonomo"
* #E05 #E10 "Kategori:Erara uzo de sxablono" &
            "Kategori:Erara uzo de sxablono (kat)"

]===]

local exporttable = {}

------------------------------------------------------------------------

---- CONSTANTS [O] ----

------------------------------------------------------------------------

-- uncommentable strings (core site-related features)

      local constringvoj = "Modulo:loaddata-tbllingvoj"  -- EO
        -- local constringvoj = "Modul:loaddata-tblbahasa"    -- ID

  local constrpriv   = "eo"
  -- local constrpriv   = "id"
  local constrapxq   = "Aldono"             -- EO !!!FIXME!!!
  -- local constrapxq   = "Lampiran"           -- ID
  local constrkatq   = "Kategorio"          -- EO
  -- local constrkatq   = "Kategori"           -- ID

  local constrkoll = 'sxablono "kat"'  -- EO augmented name of the caller (semi-hardcoded, we do NOT peek it) !!!FIXME!!!
  -- local constrkoll = 'templat "kat"'   -- ID augmented name of the caller (semi-hardcoded, we do NOT peek it)

-- surrogate transcoding table (only needed for EO)

  local contabtransluteo = {}
  contabtransluteo[ 67] = 0xC488 -- CX
  contabtransluteo[ 99] = 0xC489 -- cx
  contabtransluteo[ 71] = 0xC49C -- GX
  contabtransluteo[103] = 0xC49D -- gx
  contabtransluteo[ 74] = 0xC4B4 -- JX
  contabtransluteo[106] = 0xC4B5 -- jx
  contabtransluteo[ 83] = 0xC59C -- SX
  contabtransluteo[115] = 0xC59D -- sx
  contabtransluteo[ 85] = 0xC5AC -- UX breve
  contabtransluteo[117] = 0xC5AD -- ux breve

  -- strings (error circumfixes)

  local constrelabg = '<span class="error"><b>'  -- lagom whining begin
  local constrelaen = '</b></span>'              -- lagom whining end
  local constrlaxhu = '&nbsp;&#42;&#42;&nbsp;'   -- lagom -> huge circumfix " ** "

  -- uncommentable table (error messages)

  -- #E02...#E99, note that #E00 and #E01 are NOT supposed to be included here

local contaberaroj = {}
      contaberaroj[ 5] = 'Parametroj estas maldezirindaj por \\@, legu gxian dokumentajxon'   -- EO #E05 change to unknown param
        -- contaberaroj[ 5] = 'Parameter tidak diterima oleh \\@, bacalah dokumentasinya'        -- ID #E05 !!!FIXME!!!
      contaberaroj[ 6] = 'Erara pagxonomo (neniu el 6) por \\@'                               -- EO #E06
        -- contaberaroj[ 6] = 'Nama halaman salah (tidak satu dari 6) untuk \\@'                 -- ID #E06
      contaberaroj[ 7] = 'Nekonata lingvonomo por \\@'                                        -- EO #E07
        -- contaberaroj[ 7] = 'Nama bahasa yang tidak dikenal untuk \\@'                         -- ID #E07
      contaberaroj[10] = 'Erara nomspaco (estu 14, "Kategorio:") por \\@'                     -- EO #E10
        -- contaberaroj[10] = 'Ruang nama salah (sebaiknya 14, "Kategori:") untuk \\@'           -- ID #E10
      contaberaroj[13] = 'Forjxetas pagxonomon pro . :: // -- (( )) en \\@'                   -- EO #E13
        -- contaberaroj[13] = 'Nama halaman ditolak oleh karena . :: // -- (( )) dalam \\@'      -- ID #E13

  -- uncommentable table (boasting)

  local contabboasting = {}

      contabboasting['g0'] = 'En aux sub cxi tiu'
      contabboasting['g1'] = 'kategorio trovigxas'
      contabboasting['g2'] = 'lingvokodo'

      contabboasting['elel0'] = 'kapvortoj derivitaj el'
      contabboasting['elel1'] = 'La kontrauxa kategorio estas'

      contabboasting['stil0'] = 'subkategorioj por kapvortoj en la lingvo'
      contabboasting['stil1'] = 'laux stilo AKK lingvoregistro'

      contabboasting['trad'] = 'kapvortoj kun tradukoj al la lingvo'

  contabboasting[30] = 'vortaroj (aliaj ol tuta vikivortaro mem), kiuj specifas por la lingvo'
  contabboasting[31] = 'La esperantan vikivortaron vi jam uzas'  -- if code is "eo"
  contabboasting[32] = 'La'                                      -- if it exists
  contabboasting[33] = 'Bedauxrinde ne disponeblas'              -- if it lacks
  contabboasting[34] = 'vikivortaro'                    -- in both cases
  contabboasting[35] = 'provu'                          -- if it lacks
  contabboasting[36] = 'kaj ecx la kodo estas okupita'  -- if it lacks and ... (for example "als", has "??" in /c6/)

  contabboasting['isnl'] = 'subkategorioj por uzantoj kiuj indikis sian nivelon en'

  contabboasting['islv0'] = 'uzantoj kiuj indikis sian nivelon en'
  contabboasting['islv1'] = 'je'

  -- main list with pagename patterns --  !!!FIXME!!! DEPRECATED

  -- * [1] parsing method
  --       * 3 -> sepbracket
  --       * 4 "el"-type with "la" trouble
  --       * 5 isto with level
  --       * 6 isto without level
  -- * [2] pattern for parsing method (outer string for 3 | unused for 4 5 6)
  -- * [3] reserved
  -- * [4] (char) type by content and icon G H U
  -- * [5] (boo) categorize in lang (for example in "Kategori:Sveda" or in "Kategori:Greka antikva") with no hint
  -- * [6] (char) type of hint in extra cat
  --   * ""  empty string to deactive this cat
  --   * "N" lang name lowercase -- "Ido -> ido"
  --   * "K" lang code
  --   * "L" level -- "0" "1" "2" "3" "4" "D" -> "d"
  -- * [7] name of extra cat (by lang or by level or by something else)
  --       (empty if none, but [6] is the control, also empty if cat
  --       used but name not needed)

  local contabtypesofcats = {}
  contabtypesofcats['elel'] = {4, '',           '', 'G', true,  'N', 'Laux fonta lingvo'}           -- "El la anglosaksa"
  contabtypesofcats['stil'] = {3, 'Laux stilo', '', 'G', true,  'N', 'Laux stilo kaj lingvo'}       -- "Laux stilo (indonezia)"
  contabtypesofcats['trad'] = {3, 'Tradukoj',   '', 'H', true,  'N', 'Laux traduko'}                -- "Tradukoj (indonezia)"
  contabtypesofcats['isnl'] = {6, '',           '', 'U', false, 'K', 'Vikivortaristo laux lingvo'}  -- "Vikivortaristo mi"
  contabtypesofcats['islv'] = {5, '',           '', 'U', false, 'L', ''}                            -- "Vikivortaristo mi-D"
  contabtypesofcats['varo'] = {3, 'Vortaro',    '', 'G', true,  'N', 'Vortaro laux lingvo'}         -- "Vortaro (indonezia)"

  -- main list with types of cat:s --

  -- * [1] (string) here type of category by priority and title
  --                structure "sr" (last) "dr" "mi" "ri" (earliest)
  -- * [1] (string) later replaced by the key such as "elel"
  -- * [2] (string) pattern for identification
  -- * [3] (string) deviations (for example prohibition against
  --                certain languages or allowed extra ones)
  -- * [4] (char) type by content and icon G H U
  -- * [5] reserved
  -- * [6]...[9] patterns for parent cat:s (optional hint separated by
  --             wall "|", hint goes always though LFIBREWCATHINT)

  local contabtypesofkat = {}
  contabtypesofkat['elel'] = {'mi', 'El @LY'                , ''     , 'G', '', '@LU', 'Laux fonta lingvo|@LN'           } -- "El la anglosaksa"
  contabtypesofkat['stil'] = {'ri', 'Laux stilo (@LN)'      , ''     , 'G', '', '@LU', 'Laux stilo kaj lingvo|@LN'       } -- "Laux stilo (indonezia)"
  contabtypesofkat['trad'] = {'ri', 'Tradukoj (@LN)'        , 'noeo' , 'H', '', '@LU', 'Laux traduko|@LN'                } -- "Tradukoj (indonezia)"
  contabtypesofkat['isnl'] = {'mi', 'Vikivortaristo@LK'     , ''     , 'U', '',        'Vikivortaristo laux lingvo|@LK'  } -- "Vikivortaristo mi"
  contabtypesofkat['islv'] = {'ri', 'Vikivortaristo@LK-@LL' , ''     , 'U', '',        'Vikivortaristo@LK|@LL'           } -- "Vikivortaristo mi-D"
  contabtypesofkat['varo'] = {'ri', 'Vortaro (@LN)'         , ''     , 'G', '', '@LU', 'Vortaro laux lingvo|@LN'         } -- "Vortaro (indonezia)"

  -- tracking cat:s --

local contabtracking = {}
      contabtracking[0] = 'Auxtokato kun nesubtenata pagxonomo' -- #E06
      contabtracking[1] = 'Auxtokato kun nekonata lingvonomo'   -- #E07
      contabtracking[2] = 'Erara uzo de sxablono'               -- #E05 #E10
      contabtracking[3] = 'Erara uzo de sxablono (kat)'         -- #E05 #E10

  -- icons and descriptions for types of category by content

local contabicon = {}
contabicon['G'] = 'Vista-folder open.png'  -- generic
contabicon['H'] = 'Hidden icon.png'        -- hidden
contabicon['U'] = 'User-invisible.svg'     -- user, alternative image "Nuvola apps personal unisex.svg"
contabicon['T'] = 'Nuvola filesystems folder template.png' -- template

local contabdesc = {}
      contabdesc['G'] = ''
      contabdesc['H'] = 'kasxita'
      contabdesc['U'] = 'uzanta'

  -- table (HTML)

local contabhtml = {}
contabhtml[0] = '<table style="border:1px solid #A0A0A0; background:#F0F0F0; width:95%; margin:0.6em auto 0.6em auto; padding:0.6em; text-align:justify;">'
contabhtml[3] = '<tr><td style="width:30px;">[[File:'
contabhtml[4] = '|50px]]</td><td style="padding-left:1em;">'
contabhtml[5] = '</td></tr></table>'

------------------------------------------------------------------------

---- SPECIAL STUFF OUTSIDE MAIN [B] ----

------------------------------------------------------------------------

---- SPECIAL VAR:S ----

require('strict')

local qldingvoj = {}     -- type "table" and nested
local qboodetrc = true   -- from "detrc=true" but default is "true" !!!
local qstrtrace = '<br>' -- for main & sub:s, debug report request by "detrc="
local qbooguard = false  -- only for the guard test, pass to other var ASAP

---- GUARD AGAINST INTERNAL ERROR AND IMPORT ONE VIA LOADDATA ----

qbooguard = ((type(constringvoj)~='string') or (type(constrkoll)~='string'))
if (not qbooguard) then
  qldingvoj = mw.loadData(constringvoj) -- can crash here
  qbooguard = (type(qldingvoj)~='table') -- seems to be always false
end--if

------------------------------------------------------------------------

---- DEBUG FUNCTIONS [D] ----

------------------------------------------------------------------------

-- Local function LFDTRACEMSG

-- Enhance upvalue "qstrtrace" with fixed text.

-- for variables the other sub "lfdshowvar" is preferable but in exceptional
-- cases it can be justified to send text with values of variables to this sub

-- no size limit

-- upvalue "qstrtrace" must NOT be type "nil" on entry (is inited to "<br>")

-- uses upvalue "qboodetrc"

local function lfdtracemsg (strshortline)
  if (qboodetrc and (type(strshortline)=='string')) then
    qstrtrace = qstrtrace .. strshortline .. '.<br>' -- dot added !!!
  end--if
end--function lfdtracemsg

------------------------------------------------------------------------

-- Local function LFDMINISANI

-- Input  : * strdangerous -- must be type "string", empty legal
--          * numlimitdivthree

-- Output : * strsanitized -- can happen to be quasi-empty with <<"">>

-- To be called from "lfdshowvcore" <- "lfdshowvar" only.

-- * we absolutely must disallow: cross "#" 35 | apo "'" 39 |
--   star "*" 42 | dash 45 | colon 58 | "<" 60 | ">" 62 | "[" 91 | "]" 93
-- * spaces are showed as "{32}" if repetitive or at begin or at end

local function lfdminisani (strdangerous, numlimitdivthree)

  local strsanitized = '"' -- begin quot
  local num38len = 0
  local num38index = 1 -- ONE-based
  local num38signo = 0
  local num38prev = 0
  local boohtmlenc = false
  local boovisienc = false

  num38len = string.len (strdangerous)
  while true do
    boohtmlenc = false -- % reset on
    boovisienc = false -- % every iteration
    if (num38index>num38len) then -- ONE-based
      break -- done string char after char
    end--if
    num38signo = string.byte (strdangerous,num38index,num38index)
    if ((num38signo<43) or (num38signo==45) or (num38signo==58) or (num38signo==60) or (num38signo==62) or (num38signo==91) or (num38signo==93) or (num38signo>122)) then
      boohtmlenc = true
    end--if
    if ((num38signo<32) or (num38signo>126)) then
      boovisienc = true -- overrides "boohtmlenc"
    end--if
    if ((num38signo==32) and ((num38prev==32) or (num38index==1) or (num38index==num38len))) then
      boovisienc = true -- overrides "boohtmlenc"
    end--if
    if (boovisienc) then
      strsanitized = strsanitized .. '{' .. tostring (num38signo) .. '}'
    else
      if (boohtmlenc) then
        strsanitized = strsanitized .. '&#' .. tostring (num38signo) .. ';'
      else
        strsanitized = strsanitized .. string.char (num38signo)
      end--if
    end--if
    if ((num38len>(numlimitdivthree*3)) and (num38index==numlimitdivthree)) then
      num38index = num38len - numlimitdivthree -- jump forwards
      strsanitized = strsanitized .. '" ... "'
    else
      num38index = num38index + 1 -- ONE-based
    end--if
    num38prev = num38signo
  end--while
  strsanitized = strsanitized .. '"' -- don't forget final quot

  return strsanitized

end--function lfdminisani

------------------------------------------------------------------------

-- Local function LFDSHOWVCORE

-- Prebrew report about content of a variable including optional full
-- listing of a table with numeric and string keys.                             !!!FIXME!!!

-- Input  : * vardubious  -- content (any type including "nil" is acceptable)
--          * str77name   -- name of the variable (string)
--          * vardescri   -- optional comment, default empty, begin with "@" to
--                           place it before name of the variable, else after
--          * varlim77tab -- optional limit, limits both string keys and
--                           numeric keys, default ZERO no listing

-- Depends on functions :
-- [D] lfdminisani

local function lfdshowvcore (vardubious, str77name, vardescri, varlim77tab)

  local taballkeystring = {}
  local strtype = ''
  local strreport = ''
  local numindax = 0
  local numlencx = 0
  local numkeynumber = 0
  local numkeystring = 0
  local numkeycetera = 0
  local numkey77min = 999999
  local numkey77max = -999999
  local boobe77fore = false

  if (type(str77name)~='string') then
    str77name = '??' -- bite the bullet
  else
    str77name = '"' .. str77name .. '"'
  end--if

  if (type(vardescri)~='string') then
    vardescri = '' -- omit comment
  end--if
  if (string.len(vardescri)>=2) then
    boobe77fore = (string.byte(vardescri,1,1)==64) -- prefix "@"
    if (boobe77fore) then
      vardescri = string.sub(vardescri,2,-1) -- CANNOT become empty
    end--if
  end--if

  if (type(varlim77tab)~='number') then
    varlim77tab = 0 -- deactivate listing of a table
  end--if

  if ((vardescri~='') and (not boobe77fore)) then
    str77name = str77name .. ' (' .. vardescri .. ')' -- now a combo
  end--if

  strtype = type(vardubious)

  if (strtype=='table') then

    for k,v in pairs(vardubious) do
      if (type(k)=='number') then
        numkey77min = math.min (numkey77min,k)
        numkey77max = math.max (numkey77max,k)
        numkeynumber = numkeynumber + 1
      else
        if (type(k)=='string') then
          taballkeystring [numkeystring] = k
          numkeystring = numkeystring + 1
        else
          numkeycetera = numkeycetera + 1
        end--if
      end--if
    end--for

    strreport = 'Table ' .. str77name
    if ((numkeynumber==0) and (numkeystring==0) and (numkeycetera==0)) then
      strreport = strreport .. ' is empty'
    else
      strreport = strreport .. ' contains '
      if (numkeynumber==0) then
        strreport = strreport .. 'NO numeric keys'
      end--if
      if (numkeynumber==1) then
        strreport = strreport .. 'a single numeric key equal ' .. tostring (numkey77min)
      end--if
      if (numkeynumber>=2) then
        strreport = strreport .. tostring (numkeynumber) .. ' numeric keys ranging from ' .. tostring (numkey77min) .. ' to ' .. tostring (numkey77max)
      end--if
      strreport = strreport .. ' and ' .. tostring (numkeystring) .. ' string keys and ' .. tostring (numkeycetera) .. ' other keys'
    end--if

    if ((numkeynumber~=0) and (varlim77tab~=0)) then -- !!!FIXME!!!
      strreport = strreport .. ' ### content num keys :'
      numindax = numkey77min
        while true do
          if ((numindax>varlim77tab) or (numindax>numkey77max)) then
            break -- done table
          end--if
          strreport = strreport .. ' ' .. tostring(numindax) .. ' -> ' .. lfdminisani(tostring(vardubious[numindax]),30)
          numindax = numindax + 1
        end--while
    end--if

    if ((numkeystring~=0) and (varlim77tab~=0)) then -- !!!FIXME!!!
      strreport = strreport .. ' ### content string keys :'
    end--if

  else

      strreport = 'Variable ' .. str77name .. ' has type "' .. strtype .. '"'
      if (strtype=='string') then
        numlencx = string.len (vardubious)
        strreport = strreport .. ' and length ' .. tostring (numlencx)
        if (numlencx~=0) then
          strreport = strreport .. ' and content ' .. lfdminisani (vardubious,30)
        end--if
      else
        if (strtype~='nil') then
          strreport = strreport .. ' and content "' .. tostring (vardubious) .. '"'
        end--if
      end--if (strtype=='string') else

  end--if (strtype=='table') else

  if ((vardescri~='') and boobe77fore) then
    strreport = vardescri .. ' : ' .. strreport -- very last step
  end--if

  return strreport

end--function lfdshowvcore

------------------------------------------------------------------------

-- Local function LFDSHOWVAR

-- Enhance upvalue "qstrtrace" with report about content of a variable
-- including optional full listing of a table with numeric and string keys.     !!!FIXME!!!

-- Depends on functions :
-- [D] lfdminisani lfdshowvcore

-- upvalue "qstrtrace" must NOT be type "nil" on entry (is inited to "<br>")

-- uses upvalue "qboodetrc"

local function lfdshowvar (varduubious, strnaame, vardeskkri, vartabljjm)

  if (qboodetrc) then
    qstrtrace = qstrtrace .. lfdshowvcore (varduubious, strnaame, vardeskkri, vartabljjm) .. '.<br>' -- dot added !!!
  end--if

end--function lfdshowvar

------------------------------------------------------------------------

---- MATH FUNCTIONS [E] ----

------------------------------------------------------------------------

local function mathisintrange (numzjinput, numzjmin, numzjmax)
  local booisclean = false -- preASSume guilt
  if (type(numzjinput)=='number') then -- no non-numbers, thanks
    if (numzjinput==math.floor(numzjinput)) then -- no transcendental
      booisclean = ((numzjinput>=numzjmin) and (numzjinput<=numzjmax))
    end--if
  end--if
  return booisclean
end--function mathisintrange

local function mathdiv (xdividens, xdivisero)
  local resultdiv = 0 -- DIV operator lacks in LUA :-(
  resultdiv = math.floor (xdividens / xdivisero)
  return resultdiv
end--function mathdiv

local function mathmod (xdividendo, xdivisoro)
  local resultmod = 0 -- MOD operator is "%" and bitwise AND operator lack too
  resultmod = xdividendo % xdivisoro
  return resultmod
end--function mathmod

------------------------------------------------------------------------

-- Local function MATHBITWRIT

-- Write bit selected by ZERO-based index assigning it to "1" or "0".

-- Depends on functions :
-- [E] mathdiv mathmod

local function mathbitwrit (numinkoming, numbityndex, boowrite)
  local numpatched = 0
  local numcountup = 0
  local numweight = 1 -- single bit value 1 -> 2 -> 4 -> 8 ...
  local boosinglebit = false
  while true do
    if ((numinkoming==0) and (numcountup>numbityndex)) then
      break -- we have run out of bits on BOTH possible sources
    end--if
    if (numcountup==numbityndex) then
      boosinglebit = boowrite -- overwrite bit
    else
      boosinglebit = (mathmod(numinkoming,2)==1) -- pick bit
    end--if
    numinkoming = mathdiv(numinkoming,2) -- shift right
    if (boosinglebit) then
      numpatched = numpatched + numweight -- add one bit rtl only if true
    end--if
    numcountup = numcountup + 1 -- count up here until we run out of bits
    numweight = numweight * 2
  end--while
  return numpatched
end--function mathbitwrit

------------------------------------------------------------------------

---- NUMBER CONVERSION FUNCTIONS [N] ----

------------------------------------------------------------------------

-- Local function LFNUMTO2DIGIT

-- Convert integer 0...99 to decimal ASCII string always 2 digits "00"..."99".

-- Depends on functions :
-- [E] mathisintrange mathdiv mathmod

local function lfnumto2digit (numzerotoninetynine)
  local strtwodig = '??' -- always 2 digits
  if (mathisintrange(numzerotoninetynine,0,99)) then
    strtwodig = tostring(mathdiv(numzerotoninetynine,10)) .. tostring(mathmod(numzerotoninetynine,10))
  end--if
  return strtwodig
end--function lfnumto2digit

------------------------------------------------------------------------

---- LOW LEVEL STRING FUNCTIONS [G] ----

------------------------------------------------------------------------

-- Local function LFGSTRINGRANGE

local function lfgstringrange (varvictim, nummini, nummaxi)
  local nummylengthofstr = 0
  local booveryvalid = false -- preASSume guilt
  if (type(varvictim)=='string') then
    nummylengthofstr = string.len(varvictim)
    booveryvalid = ((nummylengthofstr>=nummini) and (nummylengthofstr<=nummaxi))
  end--if
  return booveryvalid
end--function lfgstringrange

------------------------------------------------------------------------

-- Local function LFGPOKESTRING

-- Replace single octet in a string.

-- Input  : * strinpokeout -- empty legal
--          * numpokepoz   -- ZERO-based, out of range legal
--          * numpokeval   -- new value

-- This is inefficient by design of LUA. The caller is responsible to
-- minimize the number of invocations of this, in particular, not to
-- call if the new value is equal the existing one.

local function lfgpokestring (strinpokeout, numpokepoz, numpokeval)
  local numpokelen = 0
  numpokelen = string.len(strinpokeout)
  if ((numpokelen==1) and (numpokepoz==0)) then
    strinpokeout = string.char(numpokeval) -- totally replace
  end--if
  if (numpokelen>=2) then
    if (numpokepoz==0) then
      strinpokeout = string.char(numpokeval) .. string.sub (strinpokeout,2,numpokelen)
    end--if
    if ((numpokepoz>0) and (numpokepoz<(numpokelen-1))) then
      strinpokeout = string.sub (strinpokeout,1,numpokepoz) .. string.char(numpokeval) .. string.sub (strinpokeout,(numpokepoz+2),numpokelen)
    end--if
    if (numpokepoz==(numpokelen-1)) then
      strinpokeout = string.sub (strinpokeout,1,(numpokelen-1)) .. string.char(numpokeval)
    end--if
  end--if (numpokelen>=2) then
  return strinpokeout
end--function lfgpokestring

------------------------------------------------------------------------

-- test whether char is an ASCII digit "0"..."9", return boolean

local function lfgtestnum (numkaad)
  local boodigit = false
  boodigit = ((numkaad>=48) and (numkaad<=57))
  return boodigit
end--function lfgtestnum

------------------------------------------------------------------------

-- test whether char is an ASCII uppercase letter, return boolean

local function lfgtestuc (numkode)
  local booupperc = false
  booupperc = ((numkode>=65) and (numkode<=90))
  return booupperc
end--function lfgtestuc

------------------------------------------------------------------------

-- test whether char is an ASCII lowercase letter, return boolean

local function lfgtestlc (numcode)
  local boolowerc = false
  boolowerc = ((numcode>=97) and (numcode<=122))
  return boolowerc
end--function lfgtestlc

------------------------------------------------------------------------

---- UTF8 FUNCTIONS [U] ----

------------------------------------------------------------------------

-- Local function LFULNUTF8CHAR

-- Evaluate length of a single UTF8 char in octet:s.

-- Input  : * numbgoctet  -- beginning octet of a UTF8 char

-- Output : * numlen1234x -- unit octet, number 1...4, or ZERO if invalid

-- Does NOT thoroughly check the validity, looks at ONE octet only.

local function lfulnutf8char (numbgoctet)
  local numlen1234x = 0
    if (numbgoctet<128) then
      numlen1234x = 1 -- $00...$7F -- ANSI/ASCII
    end--if
    if ((numbgoctet>=194) and (numbgoctet<=223)) then
      numlen1234x = 2 -- $C2 to $DF
    end--if
    if ((numbgoctet>=224) and (numbgoctet<=239)) then
      numlen1234x = 3 -- $E0 to $EF
    end--if
    if ((numbgoctet>=240) and (numbgoctet<=244)) then
      numlen1234x = 4 -- $F0 to $F4
    end--if
  return numlen1234x
end--function lfulnutf8char

------------------------------------------------------------------------

-- Local function LFUTRISTLETR

-- Evaluate char (from ASCII + selectable extra set from UTF8) to
-- tristate result (no letter vs uppercase letter vs lowercase letter).

-- Input  : * strin5trist : single unicode char (1 or 2 octet:s) or
--                          longer string
--          * strsel5set  : "ASCII" (default, empty string or type "nil"
--                          will do too) "eo" "sv" (value "GENE" NOT here)

-- Output : * numtype5x : 0 no letter or invalid UTF8 -- 1 upper -- 2 lower

-- Depends on functions : (this is LFUTRISTLETR)
-- [U] lfulnutf8char
-- [G] lfgtestuc lfgtestlc
-- [E] mathdiv mathmod mathbitwrit

-- Possible further char:s or fragments of such are disregarded, the
-- question answered is "Is there one uppercase or lowercase letter
-- available at begin?".

-- Defined sets:
-- "eo" 2 x 6 uppercase and lowercase (CX GX HX JX SX UX cx gx hx jx sx ux)
--      upper CX $0108 GX $011C HX $0124 JX $0134 SX $015C UX $016C lower +1
-- "sv" 2 x 4 uppercase and lowercase (AE AA EE OE ae aa ee oe)
--      upper AE $00C4 AA $00C5 EE $00C9 OE $00D6 lower +$20

local function lfutristletr (strin5trist, strsel5set)

  local numtype5x = 0 -- preASSume invalid
  local numlong5den = 0 -- actual length of input string
  local numlong5bor = 0 -- expected length of single char
  local numcha5r = 0 -- UINT8 beginning char
  local numcha5s = 0 -- UINT8 later char (BIG ENDIAN, lower value here above)
  local numcxa5rel = 0 -- UINT8 code relative to beginning of block $00...$FF
  local numtem5p = 0

  local boois5uppr = false
  local boois5lowr = false

  while true do -- fake loop -- this is LFUTRISTLETR

    numlong5den = string.len (strin5trist)
    if (numlong5den==0) then
      break -- bad string length
    end--if
    numcha5r = string.byte (strin5trist,1,1)
    numlong5bor = lfulnutf8char(numcha5r)
    if ((numlong5bor==0) or (numlong5den<numlong5bor)) then
      break -- truncated char or invalid
    end--if

    if (numlong5bor==1) then
      boois5uppr = lfgtestuc(numcha5r)
      boois5lowr = lfgtestlc(numcha5r)
      break -- success with ASCII, almost done
    end--if

    numcha5s = string.byte (strin5trist,2,2) -- only $80 to $BF
    numcxa5rel = (mathmod(numcha5r,4)*64) + (numcha5s-128) -- 4 times 64

    if ((strsel5set=='eo') and ((numcha5r==196) or (numcha5r==197))) then
      numtem5p = mathbitwrit (numcxa5rel,0,false) -- bad way to do AND $FE
      if ((numtem5p==8) or (numtem5p==28) or (numtem5p==36) or (numtem5p==52) or (numtem5p==92) or (numtem5p==108)) then
        boois5uppr = (numtem5p==numcxa5rel) -- UC below, block of 1
        boois5lowr = not boois5uppr
        break -- success with -eo-, almost done
      end--if
    end--if ((strsel5set=='eo') and ...

    if ((strsel5set=='sv') and (numcha5r==195)) then
      numtem5p = mathbitwrit (numcxa5rel,5,false) -- bad way to do AND $DF
      if ((numtem5p==196) or (numtem5p==197) or (numtem5p==201) or (numtem5p==214)) then
        boois5uppr = (numtem5p==numcxa5rel) -- UC below, block of 32
        boois5lowr = not boois5uppr
        break -- success with -sv-, almost done
      end--if
    end--if ((strsel5set=='sv') and ...

    break -- finally to join mark -- unknown non-ASCII char is a fact :-(
  end--while -- fake loop -- join mark

  if (boois5uppr) then
    numtype5x = 1
  end--if
  if (boois5lowr) then
    numtype5x = 2
  end--if

  return numtype5x

end--function lfutristletr

------------------------------------------------------------------------

-- Local function LFUCASEREST

-- Adjust (restricted) case of a single letter (from ASCII + selectable
-- extra set from UTF8) or longer string. (this is REST)

-- Input  : * strinco6cs : single unicode letter (1 or 2 octet:s) or
--                         longer string
--          * booup6cas  : for desired output uppercase "true" and for
--                         lowercase "false"
--          * boodo6all  : "true" to adjust all letters, "false"
--                         only beginning letter
--          * strsel6set : "ASCII" (default, empty string or type "nil"
--                         will do too) "eo" "sv" (value "GENE" NOT here)

-- Output : * strinco6cs

-- Depends on functions : (this is REST)
-- [U] lfulnutf8char
-- [G] lfgpokestring lfgtestuc lfgtestlc
-- [E] mathdiv mathmod mathbitwrit

-- This process never changes the length of a string in octet:s. Empty string
-- on input is legal and results in an empty string returned. When case is
-- adjusted, a 1-octet or 2-octet letter is replaced by another letter of same
-- length. Unknown valid char:s (1-octet ... 4-octet) are copied. Broken UTF8
-- stream results in remaining part of the output string (from 1 char to
-- complete length of the incoming string) filled by "Z".

-- Defined sets:
-- "eo" 2 x 6 uppercase and lowercase (CX GX HX JX SX UX cx gx hx jx sx ux)
--      upper CX $0108 GX $011C HX $0124 JX $0134 SX $015C UX $016C lower +1
-- "sv" 2 x 4 uppercase and lowercase (AE AA EE OE ae aa ee oe)
--      upper AE $00C4 AA $00C5 EE $00C9 OE $00D6 lower +$20

-- We peek max 2 values per iteration, and change the string in-place, doing
-- so strictly only if there indeed is a change. This is important for LUA
-- where the in-place write access must be emulated by means of a less
-- efficient function.

local function lfucaserest (strinco6cs, booup6cas, boodo6all, strsel6set)

  local numlong6den = 0 -- actual length of input string
  local numokt6index = 0
  local numlong6bor = 0 -- expected length of single char

  local numdel6ta = 0 -- quasi-signed +32 or -32 or +1 or -1 or ZERO

  local numcha6r = 0 -- UINT8 beginning char
  local numcha6s = 0 -- UINT8 later char (BIG ENDIAN, lower value here above)
  local numcxa6rel = 0 -- UINT8 code relative to beginning of block $00...$FF

  local numtem6p = 0

  local boowan6tlowr = false
  local boois6uppr = false
  local boois6lowr = false

  local boodo6adj = true -- preASSume innocence -- continue changing
  local boobotch6d = false -- preASSume innocence -- NOT yet botched

  booup6cas = not (not booup6cas)
  boowan6tlowr = (not booup6cas)
  numlong6den = string.len (strinco6cs)

  while true do -- genuine loop over incoming string (this is REST)

    if (numokt6index>=numlong6den) then
      break -- done complete string
    end--if
    if ((not boodo6all) and (numokt6index~=0)) then -- loop can skip index ONE
      boodo6adj = false
    end--if
    boois6uppr  = false -- preASSume on every iteration
    boois6lowr  = false -- preASSume on every iteration
    numdel6ta   = 0 -- preASSume on every iteration
    numlong6bor = 1 -- preASSume on every iteration

    while true do -- fake loop (this is REST)

      numcha6r = string.byte (strinco6cs,(numokt6index+1),(numokt6index+1))
      if (boobotch6d) then
        numdel6ta = 90 - numcha6r -- "Z" -- delta must be non-ZERO to write
        break -- fill with "Z" char:s
      end--if
      if (not boodo6adj) then
        break -- copy octet after octet
      end--if
      numlong6bor = lfulnutf8char(numcha6r)
      if ((numlong6bor==0) or ((numokt6index+numlong6bor)>numlong6den)) then
        numlong6bor = 1 -- reassign to ONE !!!
        numdel6ta = 90 - numcha6r -- "Z" -- delta must be non-ZERO to write
        boobotch6d = true
        break -- truncated char or broken stream
      end--if
      if (numlong6bor>=3) then
        break -- copy UTF8 char, no chance for adjustment
      end--if

      if (numlong6bor==1) then
        boois6uppr = lfgtestuc(numcha6r)
        boois6lowr = lfgtestlc(numcha6r)
        if (boois6uppr and boowan6tlowr) then
          numdel6ta = 32 -- ASCII UPPER->lower
        end--if
        if (boois6lowr and booup6cas) then
          numdel6ta = -32 -- ASCII lower->UPPER
        end--if
        break -- success with ASCII and one char almost done
      end--if

      numcha6s = string.byte (strinco6cs,(numokt6index+2),(numokt6index+2)) -- only $80 to $BF
      numcxa6rel = (mathmod(numcha6r,4)*64) + (numcha6s-128) -- 4 times 64

    if ((strsel6set=='eo') and ((numcha6r==196) or (numcha6r==197))) then
      numtem6p = mathbitwrit (numcxa6rel,0,false) -- bad way to do AND $FE
      if ((numtem6p==8) or (numtem6p==28) or (numtem6p==36) or (numtem6p==52) or (numtem6p==92) or (numtem6p==108)) then
        boois6uppr = (numtem6p==numcxa6rel) -- UC below, block of 1
        boois6lowr = not boois6uppr
        if (boois6uppr and boowan6tlowr) then
          numdel6ta = 1 -- UPPER->lower
        end--if
        if (boois6lowr and booup6cas) then
          numdel6ta = -1 -- lower->UPPER
        end--if
        break -- success with -eo- and one char almost done
      end--if
    end--if ((strsel6set=='eo') and ...

    if ((strsel6set=='sv') and (numcha6r==195)) then
      numtem6p = mathbitwrit (numcxa6rel,5,false) -- bad way to do AND $DF
      if ((numtem6p==196) or (numtem6p==197) or (numtem6p==201) or (numtem6p==214)) then
        boois6uppr = (numtem6p==numcxa6rel) -- UC below, block of 32
        boois6lowr = not boois6uppr
        if (boois6uppr and boowan6tlowr) then
          numdel6ta = 32 -- UPPER->lower
        end--if
        if (boois6lowr and booup6cas) then
          numdel6ta = -32 -- lower->UPPER
        end--if
        break -- success with -sv- and one char almost done
      end--if
    end--if ((strsel6set=='sv') and ...

      break -- finally to join mark -- unknown non-ASCII char is a fact :-(
    end--while -- fake loop -- join mark (this is REST)

    if ((numlong6bor==1) and (numdel6ta~=0)) then -- no risk of carry here
      strinco6cs = lfgpokestring (strinco6cs,numokt6index,(numcha6r+numdel6ta))
    end--if
    if ((numlong6bor==2) and (numdel6ta~=0)) then -- no risk of carry here
      strinco6cs = lfgpokestring (strinco6cs,(numokt6index+1),(numcha6s+numdel6ta))
    end--if
    numokt6index = numokt6index + numlong6bor -- advance in incoming string

  end--while -- genuine loop over incoming string (this is REST)

  return strinco6cs

end--function lfucaserest

------------------------------------------------------------------------

---- HIGH LEVEL STRING FUNCTIONS [I] ----

------------------------------------------------------------------------

-- Local function LFIKATALDIGU

-- Brew cat insertion (no extra colon ":") or link to  !!!FIXME!!! DEPRECATED
-- appendix from 3 elements.

local function lfikataldigu (strprefixx, strkataldnomo, strhintvisi)
  local strrbkma = ''
  if (type(strhintvisi)=='string') then
    strrbkma = '[[' .. strprefixx .. ':' .. strkataldnomo .. '|' .. strhintvisi .. ']]'
  else
    strrbkma = '[[' .. strprefixx .. ':' .. strkataldnomo .. ']]'
  end--if
  return strrbkma
end--function lfikataldigu

------------------------------------------------------------------------

-- Local function LFIKATPALDIGU

-- Brew cat insertion (no extra colon ":") or link to cat (with extra
-- colon ":") or link to page (appendix, other ns, even ns ZERO) from
-- 3 elements with optimization.

-- Input  : * strprephyx -- ns prefix without colon, empty or
--                          non-string if not desired ie ns ZERO
--          * strkataldnomo
--          * strhintvisi -- right part, empty or non-string if not desired
--          * numkattxtrakol -- ZERO for non-cat, ONE for cat insertion
--                              (needed for optimization), TWO for extra
--                              colon ie "colon rule" link to cat

local function lfikatpaldigu (strprephyx, strkataldnomo, strhintvisi, numkattxtrakol)
  local strtigatipwiki = ''
  if (type(strprephyx)~='string') then -- optional
    strprephyx = ''
  end--if
  if (type(strhintvisi)~='string') then -- optional
    strhintvisi = ''
  end--if
  if ((numkattxtrakol==1) and (strhintvisi==strkataldnomo)) then
    strhintvisi = '' -- optimize: default is without ns prefix for cat:s
  end--if
  if (strprephyx~='') then
    strkataldnomo = strprephyx .. ':' .. strkataldnomo -- now prefix plus name
  end--if
  if ((numkattxtrakol~=1) and (strhintvisi==strkataldnomo)) then
    strhintvisi = '' -- optimize: default is with ns prefix if such is present
  end--if
  if (numkattxtrakol==2) then
    strkataldnomo = ':' .. strkataldnomo -- ":Category"... apply "colon rule"
  end--if
  if (strhintvisi=='') then
    strtigatipwiki = '[[' .. strkataldnomo .. ']]'
  else
    strtigatipwiki = '[[' .. strkataldnomo .. '|' .. strhintvisi .. ']]'
  end--if
  return strtigatipwiki
end--function lfikatpaldigu

------------------------------------------------------------------------

-- Local function LFIBREWCATHINT

-- Brew sorting hint/key for wiki category by lowering all letters and
-- removing junk chars other than known letters and numbers. All ASCII and
-- selected non-ASCII letters do count as such. Particularly ban spaces
-- and dashes. Controllably UTF8-aware.

-- Input  : * strhinthink -- empty is useless but cannot
--                           cause major harm
--          * strsignaro  -- "ASCII" (default, empty string or type "nil"
--                           will do too) "eo" "sv" NOPE "GENE"
--          * bookeepuk   -- keep unknown non-ASCII (by default dropped
--                           for sets other than "GENE", for NOPE "GENE"
--                           always kept)

-- Output : * strhasiil -- risk of empty

-- Depends on functions : (restricted LFUCASEREST)
-- [U] lfulnutf8char lfutristletr lfucaserest
-- [G] lfgpokestring lfgtestnum lfgtestuc lfgtestlc
-- [E] mathdiv mathmod mathbitwrit

-- Simplified strategy:
-- * numbers unchanged
-- * ASCII lowercase unchanged
-- * ASCII uppercase lowered
-- * unknown non-ASCII dropped for sets other than "GENE" unless bookeepuk
-- * non-ASCII sent to case sub with attempt to lower
-- * everything else dropped
-- * broken stream aborts and gives empty result

local function lfibrewcathint (strhinthink, strsignaro, bookeepuk)

  local strhasiil = ''
  local strnew7char = ''
  local numstrleon = 0
  local numeindx = 1 -- ONE-based
  local numczaar = 0
  local numczanx = 0 -- pre-picked next char
  local numettfyra = 0

  numstrleon = string.len (strhinthink)

  while true do -- outer genuine loop over source string

    if (numeindx>numstrleon) then
      break -- empty input is useless but cannot cause major harm
    end--if

    numczaar = string.byte (strhinthink,numeindx,numeindx)
    numeindx = numeindx + 1 -- do INC here
    numettfyra = lfulnutf8char (numczaar) -- 1...4 or ZERO on error
    if (numettfyra==0) then
      strhasiil = ''
      break -- broken stream -> bugger all -- exit outer loop
    end--if
    numczanx = 0 -- preASSume none
    if (numeindx<=numstrleon) then -- pick but do NOT INC
      numczanx = string.byte (strhinthink,numeindx,numeindx)
    end--if

    while true do -- inner fake loop
      if (numettfyra==1) then
        if (lfgtestnum(numczaar) or lfgtestlc(numczaar)) then
          strnew7char = string.char (numczaar)
          break -- numbers and ASCII lowercase pass unchanged
        end--if
        if (lfgtestuc(numczaar)) then
          strnew7char = string.char (numczaar+32) -- lower ASCII letter
          break -- lower it
        end--if
      end--if (numettfyra==1) then
      if ((numettfyra==2) and ((strsignaro=='eo') or (strsignaro=='sv') or (strsignaro=='GENE'))) then
        strnew7char = string.char(numczaar,numczanx) -- preASSume unchanged
        if ((not bookeepuk) and (strsignaro~='GENE')) then -- drop unknown
          if (lfutristletr(strnew7char,strsignaro)==0) then -- no known letter
            strnew7char = '' -- discard char
            break
          end--if
        end--if
        -- if (strsignaro=='GENE') then -- below: want lower, do ONE only
          -- strnew7char = lfucasegene (strnew7char,false,false)
        -- else
          strnew7char = lfucaserest (strnew7char,false,false,strsignaro)
        -- end--if
        break -- done with lowercased or unchanged char
      end--if ((numettfyra==2) and ...
      strnew7char = '' -- anything else -> discard char
      break -- finally to join mark
    end--while -- inner fake loop -- join mark

    strhasiil = strhasiil .. strnew7char -- ASCII char or UTF8 char or ""
    numeindx = numeindx + numettfyra - 1 -- do ADD here

  end--while -- outer genuine loop over source string

  return strhasiil

end--function lfibrewcathint

------------------------------------------------------------------------

-- Local function LFISEPBRACKET

-- Separate bracketed part of a string and return the inner and outer
-- part, the outer one with the brackets. There must be exactly ONE "("
-- and exactly ONE ")" in correct order.

-- Input  : * strsep33br
--          * numxmin33len -- minimal length of inner part, must be >= 1

-- Output : * boosaxes, strinner, strouter

-- Note that for length of hit ZERO ie "()" we would have "begg" + 1 = "endd"
-- and for length of hit ONE ie "(x)" we have "begg" + 2 = "endd".

-- Example: "crap (NO)" -> len = 9
--           123456789
-- "begg" = 6 and "endd" = 9
-- Expected result: "NO" and "crap ()"

-- Example: "(XX) YES" -> len = 8
--           12345678
-- "begg" = 1 and "endd" = 4
-- Expected result: "XX" and "() YES"

local function lfisepbracket (strsep33br, numxmin33len)

  local strinner = ''
  local strouter = ''
  local num33idx = 1 -- ONE-based
  local numdlong = 0
  local num33wesel = 0
  local numbegg = 0 -- ONE-based, ZERO invalid
  local numendd = 0 -- ONE-based, ZERO invalid
  local boosaxes = false -- preASSume guilt

  numdlong = string.len (strsep33br)
  while true do
    if (num33idx>numdlong) then
      break -- ONE-based -- if both "numbegg" "numendd" non-ZERO then maybe
    end--if
    num33wesel = string.byte(strsep33br,num33idx,num33idx)
    if (num33wesel==40) then -- "("
      if (numbegg==0) then
        numbegg = num33idx -- pos of "("
      else
        numbegg = 0
        break -- damn: more than 1 "(" present
      end--if
    end--if
    if (num33wesel==41) then -- ")"
      if ((numendd==0) and (numbegg~=0) and ((numbegg+numxmin33len)<num33idx)) then
        numendd = num33idx -- pos of ")"
      else
        numendd = 0
        break -- damn: more than 1 ")" present or ")" precedes "("
      end--if
    end--if
    num33idx = num33idx + 1
  end--while

  if ((numbegg~=0) and (numendd~=0)) then
    boosaxes = true
    strouter = string.sub(strsep33br,1,numbegg) .. string.sub(strsep33br,numendd,-1)
    strinner = string.sub(strsep33br,(numbegg+1),(numendd-1))
  end--if

  return boosaxes, strinner, strouter

end--function lfisepbracket

------------------------------------------------------------------------

-- Local function LFIFILLINX

-- Replace placeholders "\@" "\\@" or "\~" "\\~" by given substitute string.

-- Input  : * strbeforfill -- request string with placeholders to be filled
--                            in, no placeholders or empty input is useless
--                            but cannot cause major harm
--          * numaskikodo  -- ASCII code of placeholder, 64 for "@" or
--                            126 for "~"
--          * varsupstitu  -- substitute, either string (same content reused
--                            if multiple placeholders), or ZERO-based table
--                            (with one element per placeholder such as
--                            {[0]="none","neniu"}), length 1...60

-- Output : * strafterfill

-- Depends on functions :
-- [G] lfgstringrange

local function lfifillinx (strbeforfill, numaskikodo, varsupstitu)

  local varpfiller    = 0  -- risky picking
  local strufiller    = '' -- final validated filler
  local strafterfill  = ''
  local numlenbigtext = 0  -- len of strbeforfill
  local numsfrcindex  = 0  -- char index ZERO-based
  local numinsrtinde  = 0  -- index in table ZERO-based
  local numtecken0d   = 0
  local numtecken1d   = 0

  numlenbigtext = string.len (strbeforfill)

  while true do
    if (numsfrcindex>=numlenbigtext) then
      break -- empty input is useless but cannot cause major harm
    end--if
    numtecken0d = string.byte(strbeforfill,(numsfrcindex+1),(numsfrcindex+1))
    numsfrcindex = numsfrcindex + 1 -- INC here
    numtecken1d = 0 -- preASSume none
    if (numsfrcindex<numlenbigtext) then -- pick but do NOT INC
      numtecken1d = string.byte(strbeforfill,(numsfrcindex+1),(numsfrcindex+1))
    end--if
    if ((numtecken0d==92) and (numtecken1d==numaskikodo)) then -- "\@" "\~"
      numsfrcindex = numsfrcindex + 1 -- INC more, now totally + 2
      varpfiller = 0 -- preASSume nothing available
      strufiller = '??' -- preASSume nothing available
      if (type(varsupstitu)=='string') then
        varpfiller = varsupstitu -- take it as-is (length check below)
      end--if
      if (type(varsupstitu)=='table') then
        varpfiller = varsupstitu [numinsrtinde] -- risk of type "nil"
        numinsrtinde = numinsrtinde + 1 -- INC tab index on every placeholder
      end--if
      if (lfgstringrange(varpfiller,1,60)) then -- !!!FIXME!!! nowiki and other sanitization
        strufiller = varpfiller -- now the substitute is finally accepted
      end--if
    else
      strufiller = string.char (numtecken0d) -- no placeholder -> copy octet
    end--if
    strafterfill = strafterfill .. strufiller -- add one of 4 possible cases
  end--while

  return strafterfill

end--function lfifillinx

------------------------------------------------------------------------

-- Local function LFIKODEOSG

-- Transcode eo X-surrogates to cxapeloj in a single string (eo only).

-- Input  : * streosurr -- ANSI string (empty is useless but cannot
--                                      cause major harm)

-- Output : * strutf8eo -- UTF8 string

-- Depends on functions :
-- [E] mathdiv mathmod

-- Depends on constants :
-- * table "contabtransluteo" inherently holy

-- To be called ONLY from "lfhfillsurrstrtab".

-- * the "x" in a surr pair is case insensitive,
--   for example both "kacxo" and "kacXo" give same result
-- * avoid "\", thus for example "ka\cxo" would get converted but the "\" kept
-- * double "x" (both case insensitive) prevents conversion and becomes
--   reduced to single "x", for example "kacxxo" becomes "kacxo"

local function lfikodeosg (streosurr)

  local vareopeek = 0
  local strutf8eo = ''
  local numeoinplen = 0
  local numinpinx = 0 -- ZERO-based source index
  local numknar0k = 0 -- current char
  local numknaf1x = 0 -- next char (ZERO is NOT valid)
  local numknaf2x = 0 -- post next char (ZERO is NOT valid)
  local boonext1x = false
  local boonext2x = false
  local boosudahdone = false

  numeoinplen = string.len(streosurr)

  while true do

    if (numinpinx>=numeoinplen) then
      break
    end--if

    numknar0k = string.byte(streosurr,(numinpinx+1),(numinpinx+1))
    numknaf1x = 0 -- preASSume no char
    numknaf2x = 0 -- preASSume no char
    if ((numinpinx+1)<numeoinplen) then
      numknaf1x = string.byte(streosurr,(numinpinx+2),(numinpinx+2))
    end--if
    if ((numinpinx+2)<numeoinplen) then
      numknaf2x = string.byte(streosurr,(numinpinx+3),(numinpinx+3))
    end--if

    boonext1x = ((numknaf1x==88) or (numknaf1x==120)) -- case insensitive
    boonext2x = ((numknaf2x==88) or (numknaf2x==120)) -- case insensitive
    boosudahdone = false
    if (boonext1x and boonext2x) then -- got "xx"
      strutf8eo = strutf8eo .. string.char(numknar0k,numknaf1x) -- keep one "x" only
      numinpinx = numinpinx + 3 -- eaten 3 written 2
      boosudahdone = true
    end--if
    if (boonext1x and (not boonext2x)) then -- got yes-"x" and no-"x"
      vareopeek = contabtransluteo[numknar0k] -- UINT16 or type "nil"
      if (type(vareopeek)=='number') then
        strutf8eo = strutf8eo .. string.char(mathdiv(vareopeek,256),mathmod(vareopeek,256)) -- add UTF8 char
        numinpinx = numinpinx + 2 -- eaten 2 written 2
        boosudahdone = true
      end--if
    end--if
    if (not boosudahdone) then
      strutf8eo = strutf8eo .. string.char(numknar0k) -- copy char
      numinpinx = numinpinx + 1 -- eaten 1 written 1
    end--if

  end--while

  return strutf8eo

end--function lfikodeosg

------------------------------------------------------------------------

-- Local function LFIVARILINGVONOMO

-- Input  : * strlang29name : such as "Ido" or "dana" or "samea suda"
--          * numtip29mon   : 0 native -- 1 la (AJ SB) -- 2 aj -- 3 sf (root)
--                            4 av (AV real or surrogate) -- 5 pl (AJ and PL)
--          * boomaju

-- Depends on functions :
-- [U] lfulnutf8char lfucaserest
-- [G] lfgpokestring lfgtestuc lfgtestlc
-- [E] mathdiv mathmod mathbitwrit

-- incoming multiword SB such as "Malnova Volapuko" is bad, we
-- can't process such

-- note that for "numtip29mon" 1 ie "la" we will add the article to
-- native AJ only, never to native SB (but type 4 ie "av" can force AJ
-- and subsequently add "la")

-- note that we MUST NOT change the word class to AJ
-- for "numtip29mon" 4 ie "av" if multiword

-- for "numtip29mon" 5 ie "pl" we change the word class to AJ too

local function lfivarilingvonomo (strlang29name, numtip29mon, boomaju)

  local strpluralizator = ''
  local num29lon     = 0
  local num29plindex = 0
  local nummychar    = 0
  local nummyches    = 0
  local booisnoun    = false
  local boomulwords  = false
  local booaddprepen = false
  local booaddartla  = false

  if ((numtip29mon>=1) and (numtip29mon<=5)) then

    num29lon = string.len (strlang29name)
    nummychar = string.byte (strlang29name,num29lon,num29lon) -- last

    booisnoun = (nummychar==111) -- "o"
    boomulwords = (string.find (strlang29name, ' ', 1, true)~=nil) -- plain tx
    booaddprepen = (numtip29mon==4) and boomulwords -- surrogate AV with "en"
    booaddartla = (booisnoun==false) and ((numtip29mon==1) or booaddprepen)

    if ((numtip29mon>=2) and (booaddprepen==false)) then
      strlang29name = string.sub (strlang29name,1,-2) -- cut off last letter
      strlang29name = lfucaserest (strlang29name,false,false,'eo') -- lower it
    end--if
    if (booaddartla) then
      strlang29name = 'la ' .. strlang29name -- we will NOT pluralize this
    end--if
    if ((numtip29mon==2) or (numtip29mon==5)) then
      strlang29name = strlang29name .. "a" -- AJ (pluralize later if needed)
    end--if

    if (numtip29mon==4) then
      if (boomulwords) then
        strlang29name = "en " .. strlang29name -- surrog AV from PP "en" + ...
      else
        strlang29name = strlang29name .. "e" -- AV
      end--if
    end--if

    if (numtip29mon==5) then
      if (boomulwords) then
        strpluralizator = strlang29name
        strlang29name = '' -- we will rebuild it
        num29lon = string.len (strpluralizator)
        num29plindex = 0 -- ZERO-based
        while true do -- pluralize all words except the last one
          if (num29plindex==num29lon) then
            break
          end--if
          nummychar = string.byte (strpluralizator,(num29plindex+1),(num29plindex+1))
          num29plindex = num29plindex + 1 -- ZERO-based
          nummyches = 0
          if (num29plindex~=num29lon) then
            nummyches = string.byte (strpluralizator,(num29plindex+1),(num29plindex+1))
          end--if
          if ((nummychar==97) and (nummyches==32)) then
            strlang29name = strlang29name .. 'aj '
            num29plindex = num29plindex + 1 -- eaten 2 char:s, written 3
          else
            strlang29name = strlang29name .. string.char(nummychar) -- copy ch
          end--if
        end--while
      end--if (boomulwords) then
      strlang29name = strlang29name .. "j" -- pluralize last or only one AJ
    end--if (numtip29mon==5) then

  end--if ((numtip29mon>=1) and (numtip29mon<=5)) then

  if (boomaju) then
    strlang29name = lfucaserest (strlang29name,true,false,'eo') -- upper, one, eo
  end--if

  return strlang29name

end--function lfivarilingvonomo

------------------------------------------------------------------------

---- HIGH LEVEL FUNCTIONS [H] ----

------------------------------------------------------------------------

-- Local function LFHVALI1STATUS99CODE

-- Depends on functions :
-- [E] mathisintrange

local function lfhvali1status99code (varvalue)
  local boovalid = false -- preASSume guilt
  while true do -- fake loop
    if (varvalue==0) then
      break -- success thus keep false since no valid error code ;-)
    end--if
    if (mathisintrange(varvalue,1,99)) then
      boovalid = true -- got an error and valid error code returned
    else
      varvalue = 255 -- failed to return valid status code
    end--if
    break -- finally to join mark
  end--while -- fake loop -- join mark
  return varvalue, boovalid
end--function lfhvali1status99code

------------------------------------------------------------------------

-- Local function LFHCONSTRUCTERAR

-- Input  : * numerar5code -- 1 ... 99 or 2 ... 99 (resistent against invalid
--                            data type, giving "??" on such)
--          * boopeek5it -- do peek description #E02...#E99 from table

-- Depends on functions :
-- [N] lfnumto2digit
-- [E] mathisintrange mathdiv mathmod

-- Depends on constants :
-- * maybe table contaberaroj TWO-based (holes permitted)

-- To be called ONLY from lfhbrewerror, lfhbrewerrsm,
-- lfhbrewerrsvr, lfhbrewerrinsi.

local function lfhconstructerar (numerar5code, boopeek5it)
  local vardes4krip = 0
  local numbottom6limit = 1
  local stryt5sux = '#E'
  if (boopeek5it) then
    numbottom6limit = 2 -- #E01 is a valid code for submodule only
  end--if
  if (mathisintrange(numerar5code,numbottom6limit,99)) then
    stryt5sux = stryt5sux .. lfnumto2digit(numerar5code)
    if (boopeek5it) then
      vardes4krip = contaberaroj[numerar5code] -- risk of type "nil"
      if (type(vardes4krip)=='string') then
        stryt5sux = stryt5sux .. ' ' .. vardes4krip
      else
        stryt5sux = stryt5sux .. ' ??' -- no text found
      end--if
    end--if (boopeek5it) then
  else
    stryt5sux = stryt5sux .. '??' -- no valid error code
  end--if
  return stryt5sux

end--function lfhconstructerar

------------------------------------------------------------------------

-- Local function LFHBREWERROR

-- Input  : * numerar7code -- 2 ... 99

-- Depends on functions :
-- [H] lfhconstructerar
-- [N] lfnumto2digit
-- [E] mathisintrange mathdiv mathmod

-- Depends on constants :
-- * 3 strings constrelabg constrelaen constrlaxhu
-- * table contaberaroj TWO-based (holes permitted)

-- #E02...#E99, note that #E00 and #E01 are NOT supposed to be included here.

local function lfhbrewerror (numerar7code)
  local stryt7sux = ''
  stryt7sux = constrlaxhu .. constrelabg .. lfhconstructerar (numerar7code,true) .. constrelaen .. constrlaxhu
  return stryt7sux
end--function lfhbrewerror
------------------------------------------------------------------------

-- Local function LFHFILLSURRSTRTAB

-- Process (fill in, transcode) either single string, or all string
-- items in a table (even nested) using any type of keys/indexes (such as
-- a holey number sequence and non-numeric). Items with a non-string
-- value are kept as-is. Optional filling in own name, and optional
-- transcoding of eo and NOPE sv surrogates (via 3 separate sub:s).
-- Optionally even string keys/indexes are transcoded but NOT
-- filled in.

-- Input  : * varinkommen -- type "string" or "table"
--          * varfyllo -- string, or type "nil" if no filling-in desired
--          * strlingkod -- "eo" or NOPE "sv" to transcode surrogates,
--                          anything else (preferably type "nil") to skip this
--          * bookeys -- transcode keys too (preferably "true" or type "nil")

-- Depends on functions :
-- [I] lfifillinx (only if filling-in desired)
-- [I] lfikodeosg (only if conv of eo X-surrogates desired)
-- NOPE [I] lfikodsvsg (only if conv of sv blackslash-surrogates desired)
-- [G] lfgstringrange (via "lfifillinx")
-- [E] mathdiv mathmod (via "lfikodeosg" and NOPE "lfikodsvsg")

-- Depends on constants :
-- * table "contabtransluteo" inherently holey (via "lfikodeosg")
-- NOPE * table "contabtranslutsv" inherently holey (via "lfikodsvsg")

local function lfhfillsurrstrtab (varinkommen, varfyllo, strlingkod, bookeys)

  local varkey = 0 -- &
  local varnky = 0 -- & variable without type
  local varele = 0 -- &
  local varutmatning = 0
  local boodone = false

  if (type(varinkommen)=='string') then
    if (type(varfyllo)=='string') then
      varinkommen = lfifillinx (varinkommen,64,varfyllo) -- fill-in "\@"
    end--if
    if (strlingkod=='eo') then
      varinkommen = lfikodeosg (varinkommen) -- surr
    end--if
    -- if (strlingkod=='sv') then
      -- varinkommen = lfikodsvsg (varinkommen) -- surr
    -- end--if
    varutmatning = varinkommen -- copy, risk for no change
    boodone = true
  end--if

  if (type(varinkommen)=='table') then
    varutmatning = {} -- brew new table from scratch
    for varkey,varele in pairs(varinkommen) do -- nothing done if table empty
      if ((bookeys==true) and (type(varkey)=='string')) then
        varnky = lfhfillsurrstrtab (varkey, false, strlingkod, nil) -- RECURSION
      else
        varnky = varkey
      end--if
      if ((type(varele)=='string') or (type(varele)=='table')) then
        varele = lfhfillsurrstrtab (varele, varfyllo, strlingkod, bookeys) -- RECURSION
      end--if
      varutmatning[varnky] = varele -- write same or diff place in dest table
    end--for
    boodone = true
  end--if

  if (not boodone) then
    varutmatning = varinkommen -- copy as-is whatever it is, useless
  end--if

  return varutmatning

end--function lfhfillsurrstrtab

------------------------------------------------------------------------

-- Local function LFHTHREE3STEPS

-- Perform three steps on a string and return a table with 7 results
-- plus status code.

-- Input  : * vstrkjng

-- Output : * table
--            * [0] ZERO success | 13 . :: // -- (( )) | 14 brackets
--            * [1] number of slashes
--            * [2] number of colons
--            * [3] number of pairs of brackets 0...2
--            * [4] content of zero:th pair of brackets (can be empty)
--            * [5] content of first pair of brackets (can be empty)
--            * [6] extra final stuff (can be empty)
--            * [7] remaining content (cannot be empty)

-- Depends on functions :
-- [I] lfisepbracket

-- * preliminary check:
--   * count slashes and colons
--   * reject the string with code 13 if it contains:
--     * dot
--     * double colon
--     * double slash
--     * double dash
--     * double arc bracket "((" or "))"
-- * double bracket separation:
--   * count pairs of arc brackets "("...")" with at least one char in between
--   * reject the string with code 14 if more than two pairs, or bracketing
--     broken in any way
--   * dissect the string into following elements:
--     * content of zero:th pair of brackets (leave emty "()" behind)
--     * content of first pair of brackets (leave emty "()" behind)
--     * remaining content (reject with code 14 if empty string here)
-- * extra final letter separation:
--   * if the last char is an ASCII uppercase letter and preceded by ") "
--     bracket and space then cut of the space and the letter keeping
--     the bracket
--   * if the last char is an uppercase letter and preceded by dash
--     in turn preceded by ASCII letter then cut of the dash and the letter
--     keeping the letter

local function lfhthree3steps (strkjng)

  local numertko = 0
  local numislashes = 0
  local numicolons = 0
  local numipairs = 0
  local stribrazero = ''
  local stribraone = ''
  local stribraone = ''
  local strifinal = ''

  return {[0]=numertko,numislashes,numicolons,numipairs,stribrazero,stribraone,stribraone,strifinal}

end--function lfhthree3steps


------------------------------------------------------------------------

---- VARIABLES [R] ----

------------------------------------------------------------------------

function exporttable.ek (arxframent)

  -- general unknown type

  local vartymp = 0      -- variable without type multipurpose

  -- special type "args" AKA "arx"

  local arxsomons = 0    -- metaized "args" from our own or caller's "frame"

  -- general tab

  local newtabtypesofkat = {} -- converted from contabtypesofcats
  local tablg78ysubt = {}
  local tablg80lefty = {}
  local tabonelang = {} -- subtable for one language

  -- peeked stuff

  local strpiklangcode = '' -- "en" privileged site language
  local strpikkatns    = '' -- "Category"
  local strpikapxns    = '' -- "Appendix"
  local strpikparent   = ''

  -- general str

  local strboxtext = ''
  local strtump = ''

  local strpagenam  = '' -- "{{PAGENAME}}" o "pagenameoverridetestonly"
  local strruangna  = '' -- "{{NAMESPACENUMBER}}" o "nsnumberoverridetestonly"
  local strkodbah   = '' -- directly picked or translated from "strnambah"
  local strnambah   = '' -- language name (short)
  local strnambauc  = '' -- language name with uppercased begin letter
  local strnambalc  = '' -- language name with lowercased begin letter
  local strnambala  = '' -- language name (long) with "la " if needed
  local strnambaaj  = '' -- language name (force AJ)
  local strlauxcatip = '' -- N K L
  local strlauxcatnm = '' -- name of extra cat (exp or brewed from parent cat)
  local strcol6q     = '' -- subdomain, "-" same, "??" stolen
  local strcol7q     = '' -- status 2 digits
  local straliawk    = ''
  local strenkonduko = '' -- begin of text with type by content
  local straldonsh   = '' -- link to appendix page (short)
  local straldonlg   = '' -- link to appendix page (long)
  local striconbc    = '' -- picked based on "G" or "H" or "U"
  local strdescbc    = '' -- picked based on "G" or "H" or "U"
  local strtypeof    = '' -- type of cat

  local strvisgud   = '' -- visible output on success
  local strinvkat   = '' -- invisible category part on success
  local strviserr   = '' -- visible error message on error
  local strtrakat   = '' -- invisible tracking categories on success or error
  local strret      = '' -- final result string

  -- general num

  local numerr       = 0 -- 1 internal
  local num2statcode = 0
  local numlevel     = 0 -- ASCII thus 48...52 or 69 for "D"
  local numtamp      = 0

  -- general boo

  local boohidden     = false -- whether to hide the cat
  local boolangcat    = false
  local bootaroexists = false
  local boocodestolen = false
  local bootimp       = false

------------------------------------------------------------------------

---- MAIN [Z] ----

------------------------------------------------------------------------

  ---- GUARD AGAINST INTERNAL ERROR AGAIN ----

  -- later reporting of #E01 may NOT depend on uncommentable strings

  lfdtracemsg ('This is "kat", requested "detrc" report')

  if (qbooguard) then
    numerr = 1 -- #E01 internal
  end--if

  ---- PEEK STUFF THAT IS NOT OVERRIDDEN ----  !!!FIXME!!! INCOMPLETE

  -- this depends on "arxframent" if parent requested, but NEVER on "arx"

  -- "strpikkatns" and "strpikindns" and "strpikapxns" do
  -- NOT include a trailing ":" colon, and are intended for
  -- "lfykattlaenk" and "lfyapxindlaenk" and "lfikatpaldigu"

  strpiklangcode = constrpriv
  strpikkatns    = constrkatq
  strpikapxns    = constrapxq
  strpikparent   = constrkoll

    if ((type(strpiklangcode)~='string') or (type(strpikkatns)~='string') or (type(strpikapxns)~='string')) then
      numerr = 1 -- #E01 internal
    end--if

  lfdshowvar (strpiklangcode,'strpiklangcode','@Peeking from MW done')
  lfdshowvar (strpikkatns,'strpikkatns')
  lfdshowvar (strpikapxns,'strpikapxns')
  lfdshowvar (strpikparent,'strpikparent')
  lfdshowvar (numerr,'numerr','should be ZERO')

  ---- PROCESS MESSAGES, FILL IN ALWAYS, SURR ONLY IF NEEDED ----

  -- placeholder "\@" "\\@" is replaced by augmented name of the caller
  -- from "strpikparent" in any case, for example 'sxablono "test"' or
  -- 'templat "test"'

  -- only for some languages the surr-transcoding is subsequently performed

  if (numerr==0) then
    contaberaroj = lfhfillsurrstrtab (contaberaroj, strpikparent, strpiklangcode, nil)
    contabboasting = lfhfillsurrstrtab (contabboasting, nil, strpiklangcode, nil) -- no filling
    contabtypesofcats = lfhfillsurrstrtab (contabtypesofcats, nil, strpiklangcode, nil) -- nested, no filling
    contabtracking = lfhfillsurrstrtab (contabtracking, nil, strpiklangcode, nil) -- no filling
    contabdesc = lfhfillsurrstrtab (contabdesc, nil, strpiklangcode, nil) -- no filling
  end--if

  lfdshowvar (numerr,'numerr','@Messages processed')

  ---- CONVERT AND SORT TABLE ----

  -- copy from contabtypesofcats to newtabtypesofkat
  -- sortorder is from "ri" (earliest) -> "mi" -> "dr" -> to "sr" (last)

  if (numerr==0) then

    strtump = 'ri' -- source group
    numtamp = 1 -- dest index
    while true do
      for k7k,v7v in pairs(contabtypesofcats) do
        if (v7v[1]==strtump) then
          v7v[1] = k7k -- replace
          newtabtypesofkat[numtamp] = lfhfillsurrstrtab (v7v, nil, strpiklangcode) -- store modified subtable
          numtamp = numtamp + 1

            lfdshowvar (k7k,'k7k','stored')

         end--if
      end--for
      if (strtump=='sr') then
        break -- 4 iterations in outer loop done
      end--if
      if (strtump=='dr') then
        strtump = 'sr'
      end--if
      if (strtump=='mi') then
        strtump = 'dr'
      end--if
      if (strtump=='ri') then
        strtump = 'mi'
      end--if
    end--while

    lfdshowvar (numtamp,'numtamp','ONE too much, sorting done')

  end--if

  ---- PICK TWO SUBTABLES T78 T80 FROM ONE IMPORT ----

  -- here risk of #E02 #E03

  -- on error we assign "numerr" and maybe "num2statcode" both used far below

  while true do -- fake loop

    if (numerr~=0) then -- #E01 possible
      break -- to join mark
    end--if

    num2statcode, bootimp = lfhvali1status99code (qldingvoj[2]) -- from "loaddata-tbllingvoj"
    if (num2statcode~=0) then
      if (bootimp) then
        numerr = 3 -- #E03 nombrigita
      else
        numerr = 2 -- #E02 malica
      end--if
      break -- to join mark
    end--if

    vartymp = qldingvoj['T78']
    if (type(vartymp)~='table') then -- important check
      numerr = 2 -- #E02 malica
      break -- to join mark
    end--if
    tablg78ysubt = vartymp -- y-index -> subtable (one for every langcode)

    vartymp = qldingvoj['T80']
    if (type(vartymp)~='table') then -- important check
      numerr = 2 -- #E02 malica
      break -- to join mark
    end--if
    tablg80lefty = vartymp -- left-most column -> y-index (langname to langcode)

    break -- finally to join mark
  end--while -- fake loop -- join mark

  lfdshowvar (numerr,'numerr','@After attempt to seize tables T78 T80')
  lfdshowvar (num2statcode,'num2statcode')

  ---- GET THE ARX (ONE OF TWO) ----

  -- must be seized independently on "numerr" even if we already suck

  -- give a f**k in possible params other than "caller=true"

  arxsomons = arxframent.args -- "args" from our own "frame"
  if (type(arxsomons)~='table') then
    arxsomons = {} -- guard against indexing error from our own
    numerr = 1 -- #E01 internal
  end--if
  if (arxsomons['caller']=='true') then
    arxsomons = arxframent:getParent().args -- "args" from caller's "frame"
  end--if
  if (type(arxsomons)~='table') then
    arxsomons = {} -- guard against indexing error again
    numerr = 1 -- #E01 internal
  end--if

  ---- PROCESS 3 HIDDEN NAMED PARAMS ----

  -- this may override "mw.title.getCurrentTitle().text" and
  -- stipulate content in "strpagenam", empty is NOT valid

  -- bad "pagenameoverridetestonly=" can give #E01
  -- no error is possible from other hidden parameters

  -- "detrc=" must be seized independently on "numerr"
  -- even if we already suck, but type "table" must be ensured above !!!

  strpagenam = ''
  if (numerr==0) then
    vartymp = arxsomons['pagenameoverridetestonly']
    if (type(vartymp)=='string') then
      numtamp = string.len(vartymp)
      if ((numtamp>=1) and (numtamp<=120)) then
        strpagenam = vartymp -- empty is not legal
      else
        numerr = 1 -- #E01 internal
      end--if
    end--if
  end--if

  strruangna = ''
  if (numerr==0) then
    vartymp = arxsomons['nsnumberoverridetestonly']
    if (type(vartymp)=='string') then
      numtamp = string.len(vartymp)
      if ((numtamp>=1) and (numtamp<=4)) then
        strruangna = vartymp -- empty is not legal but ignore crime
      end--if
    end--if
  end--if

  if (arxsomons['detrc']=='true') then
    lfdtracemsg ('Param "detrc=true" seized')
  else
    qboodetrc = false -- was preassigned to "true"
    qstrtrace = '' -- shut up now
  end--if

  lfdshowvar (numerr,'numerr','done with hidden params')

  ---- SEIZE THE PAGENAME FROM MW ----

  -- later reporting of #E01 may NOT depend on uncommentable strings

  -- must be 1...120 octet:s keep consistent with "pagenameoverridetestonly="

  if ((numerr==0) and (strpagenam=='')) then
    vartymp = mw.title.getCurrentTitle().text -- without namespace prefix
    if (type(vartymp)=='string') then -- this can leave bhd "strpagenam" empty
      numtamp = string.len(vartymp)
      if ((numtamp>=1) and (numtamp<=120)) then
        strpagenam = vartymp -- pagename here (empty is NOT legal)
      else
        numerr = 1 -- #E01 internal
      end--if
    end--if
  end--if

  if (numerr==0) then
    if (strpagenam=='') then
      numerr = 1 -- #E01 internal
    end--if
  end--if

  lfdshowvar (numerr,'numerr','after seizure of pagename')
  lfdshowvar (strpagenam,'strpagenam')

  ---- SEIZE THE NAMESPACE FROM MW AND CHECK IT ----

  if ((numerr==0) and (strruangna=='')) then -- get namespace (silent if bad)
    vartymp = mw.title.getCurrentTitle().namespace -- type is "number"
    if (mathisintrange(vartymp,0,9999)) then -- negative NOT legal but silent
      strruangna = tostring(vartymp) -- can be left empty, check below required
    end--if
  end--if

  if ((numerr==0) and (strruangna~='14')) then
    numerr = 10 -- #E10 ns
  end--if

  lfdshowvar (numerr,'numerr','after seizure of namespace')
  lfdshowvar (strruangna,'strruangna')

  ---- DISSECT THE PAGENAME ----  !!!FIXME!!! DEPRECATED

  -- the pagename comes in "strpagenam"

  -- "contabtypesofcats" (string keys) has subtables (ONE-based keys)
  -- * [1] parsing method (3 -> sepbracket | 4,5,6)
  -- * [2] pattern for parsing method
  -- * [3] reserved
  -- * [4] (char) type by content G H U
  -- * [5] (boo) categorize in lang
  -- * [6] (char) categorize lang N K L (empty string to deactive)
  -- * [7] name of extra cat

  -- here we do NOT validate the language name in any way beyond length >= 2

  -- things like "Tradukoj (**)" will pass here, will get caught below

  -- "Tradukoj (Esperanto)" will pass here and will pass the validation
  -- of language name too, this must be caught even later

  -- things like "El la **" will pass here, will get caught below

  -- things like "El la Ido" will pass here and will pass the validation
  -- of language name too, this must be caught even later

  -- output from here (risk for #E01 and #E06):
  -- * strnambah or strkodbah   (from pagename)
  -- * numlevel                 (from pagename)
  -- * strtypeof                (from table "key", string with 4 char:s)
  -- * boolangcat               (from [5])
  -- * boohidden                (indirectly from [4])
  -- * striconbc and strdescbc  (indirectly from [4])
  -- * strlauxcatip             (from [6] N K L can be empty if none)
  -- * strlauxcatnm             (from [7] can be empty if none)

  if (numerr==0) then

    strtypeof = ''

    do -- scope
      local strdebin = '' -- from "lfisepbracket" can be needed
      local strdebut = '' -- from "lfisepbracket" can be needed
      local strau2tr = '' -- pattern from [2]
      local strby4content = '' -- from [4] "G" or "H" or "U"
      local numpanalength = 0
      local numpars1met = 0
      local numverlastch = 0
      local numprelastch = 0
      local boodebrako = false
      local booparsdan = false

      numpanalength = string.len(strpagenam)
      numverlastch = string.byte(strpagenam,-1,-1)
      if (numpanalength>=2) then
        numprelastch = string.byte(strpagenam,-2,-2)
      end--if
      boodebrako, strdebin, strdebut = lfisepbracket (strpagenam, 2)

      for k7k,v7v in pairs(contabtypesofcats) do
        if ((type(k7k)~='string') or (type(v7v)~='table')) then
          lfdtracemsg ('Aborting "for in pairs" due to broken internal table (k,v)')
          numerr = 1 -- #E01 internal
          break
        end--if
        lfdshowvar (k7k,'k7k','iterating over possible patterns')
        booparsdan = false -- reset on every iter
        numpars1met = v7v[1]
        strau2tr = v7v[2] -- empty if not used
        strby4content = v7v[4] -- G H U
        if ((type(strau2tr)~='string') or (type(strby4content)~='string')) then
          lfdtracemsg ('Aborting "for in pairs" due to broken internal table (pos 2,4)')
          numerr = 1 -- #E01 internal
          break
        end--if
        boohidden = (strby4content=='H')
        striconbc = contabicon [strby4content]
        strdescbc = contabdesc [strby4content]
        if ((type(striconbc)~='string') or (type(strdescbc)~='string')) then
          lfdtracemsg ('Aborting "for in pairs" due to broken table "GHU-icon-desc"')
          numerr = 1 -- #E01 internal
          break
        end--if
        boolangcat = v7v[5]
        strlauxcatip = v7v[6] -- N K L empty if not desired
        strlauxcatnm = v7v[7] -- empty if not used or brewed from parent cat
        if (numpars1met==3) then -- based on lfisepbracket
          booparsdan = true
          lfdtracemsg ('Trying parsing method 3')
          if (boodebrako and ((strau2tr..' ()')==strdebut)) then
            strtypeof = k7k
            strnambah = strdebin
            lfdshowvar (strtypeof,'strtypeof','L&G we found h*m by method 3')
            break
          end--if
        end--if
        if (numpars1met==4) then -- "el"-type
          booparsdan = true
          lfdtracemsg ('Trying parsing method 4')
          if ((numpanalength>=8) and (string.sub(strpagenam,1,6)=='El la ')) then
            strtypeof = k7k
            strnambah = string.sub(strpagenam,7,-1)
            lfdshowvar (strtypeof,'strtypeof','L&G we found h*m by method 4 with "la"')
            break
          end--if
          if ((numpanalength>=5) and (string.sub(strpagenam,1,3)=='El ')) then
            strtypeof = k7k
            strnambah = string.sub(strpagenam,4,-1)
            lfdshowvar (strtypeof,'strtypeof','L&G we found h*m by method 4 without "la"')
            break
          end--if
        end--if
        if (numpars1met==5) then -- isto with level "Vikivortaristo mi-D"
          booparsdan = true
          lfdtracemsg ('Trying parsing method 5')
          if (((numpanalength==19) or (numpanalength==20)) and (string.sub(strpagenam,1,15)=='Vikivortaristo ') and (numprelastch==45)) then
            if (((numverlastch>=48) and (numverlastch<=52)) or (numverlastch==68)) then
              strtypeof = k7k
              if (numpanalength==19) then
                strkodbah = string.sub(strpagenam,16,17) -- 2-letter code
              else
                strkodbah = string.sub(strpagenam,16,18) -- 3-letter code
              end--if
              numlevel = numverlastch -- ASCII
              lfdshowvar (strtypeof,'strtypeof','L&G we found h*m by method 5')
              break
            end--if
          end--if
        end--if
        if (numpars1met==6) then -- isto without level
          booparsdan = true
          lfdtracemsg ('Trying parsing method 6')
          if (((numpanalength==17) or (numpanalength==18)) and (string.sub(strpagenam,1,15)=='Vikivortaristo ')) then
            strtypeof = k7k
            if (numpanalength==17) then
              strkodbah = string.sub(strpagenam,16,17) -- 2-letter code
            else
              strkodbah = string.sub(strpagenam,16,18) -- 3-letter code
            end--if
            lfdshowvar (strtypeof,'strtypeof','L&G we found h*m by method 6')
            break
          end--if
        end--if
        if (not booparsdan) then
          lfdtracemsg ('Aborting "for in pairs" due to unknown parsing method')
          numerr = 1 -- #E01 internal
          break
        end--if
      end--for

      if (strtypeof=='') then -- NOT found
        numerr = 6 -- #E06 no valid pattern
        lfdtracemsg ('Exited "for in pairs" with pattern NOT found')
      end--if

    end--do scope

  end--if

  lfdshowvar (numerr,'numerr','after dissection')
  lfdshowvar (boohidden,'boohidden')
  lfdshowvar (strkodbah,'strkodbah','maybe lang code is here')
  lfdshowvar (strnambah,'strnambah','maybe lang name is here')

  ---- REVERSE-QUERY NAME -> CODE IF NEEDED ----

  if ((numerr==0) and (strkodbah=='')) then
    strkodbah = tablg80lefty[strnambah]
    if (type(strkodbah)~='string') then
      numerr = 7 -- #E07 valid pattern but invalid language
    end--if
  end--if

  lfdshowvar (numerr,'numerr','after reverse query via T80')
  lfdshowvar (strkodbah,'strkodbah','maybe picked here')

  ---- ALWAYS PREPARE FOR FORWARD QUERIES ----

  -- error when picking tabonelang should be impossible
  -- if strkodbah comes from tablg80lefty

  if (numerr==0) then
    tabonelang = tablg78ysubt[strkodbah] -- get subtable from T78
    if (type(tabonelang)~='table') then
      numerr = 7 -- #E07 valid pattern but invalid language
      tabonelang = {} -- guard against indexing error
    end--if
  end--if

  ---- PERFORM LAST STEP OF FORWARD QUERY IF NEEDED ----

  if ((numerr==0) and (strnambah=='')) then
    strnambah = tabonelang[0] -- /c0/
    if (type(strnambah)~='string') then
      numerr = 1 -- #E01 internal (should be impossible)
    end--if
  end--if

  lfdshowvar (numerr,'numerr','after forward query via "tabonelang"')
  lfdshowvar (strnambah,'strnambah','maybe picked here')

  ---- REASSIGN WORD CLASS AND LETTER CASE ----

  if (numerr==0) then
    strnambauc = lfucaserest (strnambah,true,false,'eo') -- uppercase
    strnambalc = lfucaserest (strnambah,false,false,'eo') -- lowecase for the hint
    strnambala = lfivarilingvonomo (strnambah,1,false) -- long with "la "
    strnambaaj = lfivarilingvonomo (strnambah,2,false) -- adjective yes we can
  end--if

  lfdshowvar (strnambauc,'strnambauc')
  lfdshowvar (strnambalc,'strnambalc')
  lfdshowvar (strnambala,'strnambala')
  lfdshowvar (strnambaaj,'strnambaaj')

  ---- CATCH SOME FAULTY PAGENAMES ----

  -- incoming "strtypeof" and "strpagenam"

  -- "Tradukoj (Esperanto)" is illegal

  -- things like "El la Ido" or "El hispana" are illegal

  if (numerr==0) then
    while true do -- fake loop
      if (strpagenam=='Tradukoj (Esperanto)') then
        lfdtracemsg ('rejecting "Tradukoj (Esperanto)"')
        numerr = 6 -- #E06 no valid pattern
        break
      end--if
      strtump = "El " .. strnambala
      if ((strtypeof=='elel') and (strpagenam~=strtump)) then
        lfdtracemsg ('rejecting malformed "el"-type due to "' .. strpagenam .. '" <> "'.. strtump .. '"')
        numerr = 6 -- #E06 no valid pattern
        break
      end--if
      break -- finally to join mark
    end--while -- fake loop -- join mark
  end--if

  ---- PICK COLUMNS 6 AND 7 AND BREW LINK IF NEEDED ----

  -- this gives "straliawk" raw link and "bootaroexists" and "boocodestolen"

  if ((numerr==0) and (strtypeof=='varo')) then

    strcol6q = tabonelang[6] -- subdomain ie non-standard code /c6/
    if ((type(strcol6q)~='string') or (strcol6q=='-')) then
      strcol6q = strkodbah -- then ASSume same
    end--if
    strcol7q = tabonelang[7] -- status 2 digits /c7/
    if (type(strcol7q)~='string') then
      strcol7q = '00' -- ASSume nope
    end--if
    boocodestolen = (strcol6q=='??')
    if (not boocodestolen) then
      bootaroexists = ((string.byte(strcol7q,2,2))==50) -- got a "2" there ??
      straliawk = 'http://' .. strcol6q .. '.wiktionary.org' -- even if inexis
    end--if

    lfdtracemsg ('2 queries via T78 done')
    lfdshowvar (straliawk,'straliawk')
    lfdshowvar (bootaroexists,'bootaroexists')
    lfdshowvar (boocodestolen,'boocodestolen')

  end--if ((numerr==0) and (strtypeof=='varo')) then

  ---- PREBREW INTRO AND LINK TO APPENDIX PAGE ----

  -- incoming "strdescbc" "strkodbah" "strnambah" "strnambauc" "strnambala"

  -- string "strpikapxns" is appendix prefix and excludes the colon ":"

  -- result "strenkonduko" will look like (indeed space at end)
  -- "En aux sub cxi tiu kategorio trovigxas "
  -- or
  -- "En aux sub cxi tiu uzanta kategorio trovigxas "

  -- result "straldonsh" will look like (no space at end)
  -- "<b>[[Aldono:Dana|dana]]</b> (lingvokodo <code>-da-</code>)"

  -- result "straldonlg" will look like (no space at end)
  -- "<b>[[Aldono:Dana|la dana]]</b> (lingvokodo <code>-da-</code>)"

  if (numerr==0) then
    if (strdescbc~='') then
      strdescbc = strdescbc .. ' ' -- below insert extra word incl space after
    end--if
    strenkonduko = contabboasting['g0'] .. ' ' .. strdescbc .. contabboasting['g1'] .. ' '
    strtump = '</b> (' .. contabboasting['g2'] .. ' <code>-' .. strkodbah .. '-</code>)'
    straldonsh = '<b>' .. lfikatpaldigu(strpikapxns,strnambauc,strnambah,0) .. strtump -- (short)
    straldonlg = '<b>' .. lfikatpaldigu(strpikapxns,strnambauc,strnambala,0) .. strtump -- (long)
  end--if (numerr==0) then

  ---- PREBREW TEXT ----

  -- this is controlled by "strtypeof"
  -- incoming also "striconbc" "strdescbc"
  -- further "numlevel"

  -- this is the latest occasion where #E01 can arise

  if (numerr==0) then

    bootimp = false

    if (strtypeof=='elel') then -- "el"-type
      strtump = lfikatpaldigu(strpikkatns,'Deveno ('..strnambah..')','',2) -- colon
      strboxtext = strenkonduko .. contabboasting['elel0'] .. ' ' .. straldonlg .. '. ' .. contabboasting['elel1'] .. ' ' .. strtump .. '.'
      bootimp = true
    end--if

  if (strtypeof=='stil') then -- stilo
    strboxtext = strenkonduko .. contabboasting['stil0'] .. ' ' .. straldonsh .. ' ' .. contabboasting['stil1'] .. '.'
    bootimp = true
  end--if

  if (strtypeof=='trad') then -- tradukoj
    strboxtext = strenkonduko .. contabboasting['trad'] .. ' ' .. straldonsh .. '.'
    bootimp = true
  end--if

  if (strtypeof=='varo') then -- vortaro
    strboxtext = strenkonduko .. contabboasting[30] .. ' ' .. straldonsh .. '.'
    if (strkodbah=='eo') then
      strtump = contabboasting[31] .. '.'
    else
      if (bootaroexists) then
        strtump = '[' .. straliawk .. ' ' .. contabboasting[32] .. ' ' .. strnambaaj .. ' ' .. contabboasting[34] .. ']'
      else
        strtump = contabboasting[33] .. ' ' .. strnambaaj .. ' ' .. contabboasting[34]
        if (boocodestolen) then
          strtump = strtump .. ', ' .. contabboasting[36] .. '.'
        else
          strtump = strtump .. '. ([' .. straliawk .. ' ' .. contabboasting[35] ..'])'
        end--if
      end--if (bootaroexists) else
    end--if
    strboxtext = strboxtext .. '<br><br><div style="text-align:center;">' .. strtump .. '</div>'
    bootimp = true
  end--if (strtypeof=='varo') then

  if (strtypeof=='isnl') then
    strboxtext = strenkonduko .. contabboasting['isnl'] .. ' ' .. straldonlg .. '.'
    bootimp = true
  end--if

  if (strtypeof=='islv') then
    strboxtext = strenkonduko .. contabboasting['islv0'] .. ' ' .. straldonlg .. ' ' .. contabboasting['islv1'] .. ' "' .. string.char(numlevel) .. '".'
    strlauxcatnm = string.sub(strpagenam,1,-3) -- cut off 2 letters
    bootimp = true -- "strlauxcatnm" is generated from parent cat
  end--if

    if (not bootimp) then
      numerr = 1 -- #E01 internal
      lfdshowvar (strtypeof,'strtypeof','inconsistent, failed to brew box text, #E01')
    end--if

  end--if (numerr==0) then

  ---- WHINE IF YOU MUST #E01 ----

  -- reporting of this error #E01 must NOT depend on
  -- uncommentable stuff such as "strpikparent" and "contaberaroj"

  -- do NOT use sub "lfhbrewerror", report our name (NOT of template), in EN

  if (numerr==1) then
    strtump = '#E01 Internal error in module "kat".'
    strviserr = constrlaxhu .. constrelabg .. strtump .. constrelaen .. constrlaxhu
  end--if

  ---- WHINE IF YOU MUST #E02...#E99 ----

  -- reporting of errors #E02...#E99 depends on uncommentable strings
  -- and name of the caller filled in from "strpikparent"

  if (numerr>1) then
    strviserr = lfhbrewerror(numerr)
  end--if

  ---- BREW THE VISIBLE BOX PART AROUND THE TEXT ----

  -- incoming "striconbc" and "strboxtext"

  if (numerr==0) then
    strvisgud = contabhtml[0] .. contabhtml[3] .. striconbc .. contabhtml[4] .. strboxtext .. contabhtml[5]
  end--if

  ---- BREW THE INVISIBLE CATEGORY PART ----

  -- incoming:
  -- * "boolangcat" and "strlauxcatip" and "strlauxcatnm"
  -- * "strnambah" and "strnambauc" and "strnambalc"
  -- * "numlevel"
  -- * "boohidden"

  -- string "strpikkatns" is cat prefix and excludes the colon ":"

  -- brew "__HIDDENCAT__" if needed as well as up to 2 category insertions

  if (numerr==0) then
    do -- scope
      local strkeysorthint = ''
      local boobrewthatone = false
      if (boolangcat) then -- cat insertion no hint
        strinvkat = lfikatpaldigu(strpikkatns,strnambauc,'',1)
      end--if
      if (strlauxcatip=='N') then -- lang name
       strkeysorthint = lfibrewcathint(strnambah,'eo',false) -- must clean up
       boobrewthatone = true
      end--if
      if (strlauxcatip=='K') then -- lang code
       strkeysorthint = strkodbah -- no cleanup needed
       boobrewthatone = true
      end--if
      if (strlauxcatip=='L') then -- level
       strkeysorthint = string.char(numlevel) -- cleanup needed for "D" only
       boobrewthatone = true
      end--if
      if (boobrewthatone) then -- cat insertion custom hint
        strinvkat = strinvkat .. lfikatpaldigu(strpikkatns,strlauxcatnm,strkeysorthint,1)
      end--if
      if (boohidden) then
        strinvkat = '__HIDDENCAT__' .. strinvkat
      end--if
    end--do scope
  end--if (numerr==0) then

  ---- BREW THE TRACKING CATEGORY PART ----

  if (numerr==6) then
    strtrakat = lfikataldigu(strpikkatns,contabtracking[0]) -- #E06
  end--if
  if (numerr==7) then
    strtrakat = lfikataldigu(strpikkatns,contabtracking[1]) -- #E07
  end--if
  if ((numerr==5) or (numerr==10)) then
    strtrakat = lfikataldigu(strpikkatns,contabtracking[2]) .. lfikataldigu(strpikkatns,contabtracking[3]) -- #E05 #E10
  end--if

  ---- RETURN THE JUNK STRING ----

  -- on #E02 and higher we risk partial results in "strvisgud" and "strinvkat"

  lfdtracemsg ('Ready to return string glued together from 1 + 4 parts')
  lfdshowvar (strvisgud,'strvisgud')
  lfdshowvar (strinvkat,'strinvkat')
  lfdshowvar (strviserr,'strviserr')
  lfdshowvar (strtrakat,'strtrakat')

  if (numerr==0) then
    strret = strvisgud .. strinvkat
  else
    strret = strviserr .. strtrakat
  end--if
  if (qboodetrc) then -- "qstrtrace" declared separately outside main function
    strret = '<br>' .. qstrtrace .. '<br><br>' .. strret
  end--if
  return strret

end--function

  ---- RETURN THE JUNK LUA TABLE ----

return exporttable