Modulo:mchklngcode
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--[===[
MODULE "MCHKLNGCODE" (check language code)
"eo.wiktionary.org/wiki/Modulo:mchklngcode" <!--2019-Dec-31-->
"id.wiktionary.org/wiki/Modul:mchklngcode"
Purpose: checks validity of 1 or 2 parameters that are supposed to
contain language code in 2 stages: by testing whether they
are obviously invalid, and if this does not apply whether
they are known
Utilo: kontrolas validecon de 1 aux 2 parametroj kiuj enhavu
lingvokodon en 2 pasxoj: testante cxu ili estas evidente
nevalidaj, kaj se tio ne veras cxu ili estas konataj
Manfaat: mengontrol validitas 1 atau 2 parameter yang ...
Syfte: kontrollerar giltighet av 1 eller 2 parametrar ...
Used by templates / Uzata far sxablonoj:
- deveno3 elpropra Lingvo t
Required submodules / Bezonataj submoduloj / Submodul yang diperlukan:
- "mpiktbllki" in turn requiring "mtmplloaddata" in turn requiring
template "tbllingvoj" (EO) or "tblbahasa" (ID)
This module is special in that it takes parameters both those sent
to itself (own frame) and those sent to the caller (caller's frame).
Incoming: - 1 or 2 anonymous parameters
- 1 or 2 parameters forwarded from the caller using "{{{1}}}"
or "{{{ling}}}" or similarly, wall "|" is not needed,
maybe "{{{ling|eo}}}" for an optional parameter,
conversely "{{{ling|}}}" is bad
- 1 optional named parameter
- "xx=" tuning string with 5 char:s (one tristate letter
and 4 bool digits "0" or "1")
- letter : desired type of result (default is "b"):
- "b" -- bool (0 invalid -- 1 good) for conditional logic
in classic templates
- "t" -- tristate (0 invalid -- 1 unknown -- 2 known)
- "k" -- category (2 categories without EOL between them
if applicable, or empty string if known, see below)
- bool: do check 2 codes (by default only 1 code is checked)
- bool: allow "??" (default false ie NOT allowed)
- bool: allow digit in middle position of 3-letter codes
("t8i") (default false ie NOT allowed)
- bool: do NOT disallow some common bad codes ("epo",
"por", ...) by ban table (default false ie NOT allowed)
Returned: - "b" : string "1" if the parameters are accepted (known or
unknown code), string "0" if the parameters are bad
(obviously invalid), or this module itself becomes
victim of misuse
- "t" : string "2" if the parameters are accepted (known code or
codes), string "1" if the parameters are unknown but not
obviously invalid, string "0" if the parameters are bad
(at least one is obviously invalid), or this module itself
becomes victim of misuse
- "k" : 2 categories (of 2 possible types) without EOL between
them, or empty string if the parameters are accepted,
no junk categories if this module itself becomes
victim of misuse
For "b" and "t" the principle is "the worst result counts", but for "k"
the 2 categories are based on separate evaluations of the 2 codes.
Parameters seized from the caller's frame:
- 1 named optional parameter
- "nocat" (value "true" to suppress categorization in "k" mode,
anything else is ignored)
The validity check for obviously invalid code
requires in order to return result "good":
- must be 2 or 3 ASCII char:s long
- must consist of lowercase letters only (optionally,
digit in the middle position can be allowed)
- must not be on the ban list (this check can optionally be deactivated)
- optionally string "??" (but not "???") can be allowed as
valid (but not as known)
La kontrolo pri evidente nevalida kode postulas
por redoni rezulton "bona":
- longo estu 2 aux 3 ASCII signoj
- enhavu nur minusklajn literojn (opcie, cifero povas
esti permesita en la meza pozicio)
- ne trovigxu sur la forbara listo (cxi tiu kontrolo povas opcie
esti senaktivigita)
- opcie signocxeno "??" (sed ne "???") povas esti permesita kiel
valida (sed ne kiel konata)
Note that the operation modes "b" or "t" and on the other side "k" are
separated and it is NOT possible to merge them. Result from "b" is fed into
"#ifeq" and possible categories would be ignored. Thus this module will be
usually called several times from one template, even with same language code.
Note that the result in bool mode "b" is either "1" "accepted" or "0" "bad"
after this module has succeeded to run. But there is a third option "module
failed to run" due to not found or timeout for example. The conditional logic
in the calling template must be aware of this.
In the category mode "k" the format of the categories is:
- obviously invalid
- "[[Kategorio:Evidente nevalida lingvokodo (Deutsch)]]"
- "[[Kategorio:Evidente nevalida lingvokodo]]"
the reported string is sanitized:
- replaced with "e-m-p-t-y" if empty
- otherwise truncated to max 14 octet:s and unsafe char:s are
replaced with dot:s (safe are "0"..."9" "A"..."Z" "a"..."z"
"(" ")" "," "-")
or
- uknown
- "[[Kategorio:Nekonata lingvokodo (haw)]]"
- "[[Kategorio:Nekonata lingvokodo]]"
there is no need to filter any unsafe char:s here
If two codes are tested then two separate pairs of categories can be created
of same type or of different types (one invalid and one unknown).
This module allows to mostly separate cases of "obviously invalid language
code" (for example "" (empty), "...", "Deutsch", "De", "FR", "taja", ...)
from "unknown language code" (for example "haw" that is valid according to
"ISO 639-3:2007" but might lack in the list of languages)
: ---------------------------------------
* #00 (no params, bad)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek}}"
* #01 ("eo")
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|eo}}"
* #02 ("eo|crap", only 1 code is tested)
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|eo|crap}}"
* #03 ("eo|sv|id", 3 anon params, bad)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|eo|sv|id}}"
* #04 ("eo|xx=b0000", all 5 defaults explicitely confirmed)
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|eo|xx=b0000}}"
* #05 ("eo|xx=b00000", parameter too long)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|eo|xx=b00000}}"
* #06 ("eo|xx=b0020", invalid digit "2")
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|eo|xx=b0020}}"
* #07 ("eo|crap|xx=b1000", both codes are tested)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|eo|crap|xx=b1000}}"
: ---------------------------------------
* #10 ("eo|haw|xx=b1000", both codes are tested)
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|eo|haw|xx=b1000}}"
* #11 ("eo|??|xx=b1000", both codes are tested, "??" prohibited)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|eo|??|xx=b1000}}"
* #12 ("eo|??|xx=b1100", both codes are tested, "??" allowed)
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|eo|??|xx=b1100}}"
* #13 ("por|xx=b0000", "por" prohibited)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|por|xx=b0000}}"
* #14 ("por|xx=b0001", "por" allowed)
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|por|xx=b0001}}"
* #15 ("eo|z|xx=b1101", both codes are tested, right "z" is bad)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|eo|z|xx=b1101}}"
* #16 ("z|eo|xx=b1101", both codes are tested, left "z" is bad)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|z|eo|xx=b1101}}"
* #17 ("epo|eo|xx=b1101", both codes are tested, "epo" allowed)
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|epo|eo|xx=b1101}}"
: ---------------------------------------
* #20 ("|ek|id||xx=b1101", both codes are tested, empty is bad)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|id||xx=b1101}}"
* #21 ("|ek|id||xx=b0101", only one code is tested, empty is bad but ignored)
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|id||xx=b0101}}"
* #22 ("|ek||id|xx=b0101", only one code is tested, empty is bad)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek||id|xx=b0101}}"
* #23 ("|ek|t8i|xx=b0000", digits prohibited as default)
* expected result: "0" (bad)
* actual result: "{{#invoke:mchklngcode|ek|t8i|xx=b0000}}"
* #24 ("|ek|t8i|xx=b0010", digits permitted)
* expected result: "1" (good)
* actual result: "{{#invoke:mchklngcode|ek|t8i|xx=b0010}}"
: ---------------------------------------
* #30 ("grc|xx=t0000", tristate)
* expected result: "2" (good and known)
* actual result: "{{#invoke:mchklngcode|ek|grc|xx=t0000}}"
* #31 ("t8i|xx=t0010", tristate, digits permitted)
* expected result: "2" (good and known) or "1" (valid but unknown)
* actual result: "{{#invoke:mchklngcode|ek|t8i|xx=t0010}}"
* #32 ("??|xx=t0100", tristate, "??" is allowed)
* expected result: "1" (valid but unknown)
* actual result: "{{#invoke:mchklngcode|ek|??|xx=t0100}}"
* #33 ("???|xx=t0100", tristate, "??" is allowed but "???" is NOT)
* expected result: "0" (obviously invalid)
* actual result: "{{#invoke:mchklngcode|ek|???|xx=t0100}}"
* #34 ("fri|xx=t0000", tristate, this code is officially banned)
* expected result: "1" (valid but unknown)
* actual result: "{{#invoke:mchklngcode|ek|fri|xx=t0000}}"
: ---------------------------------------
* #40 ("f3i|xx=t0000", tristate, digits prohibited by default)
* expected result: "0" (obviously invalid)
* actual result: "{{#invoke:mchklngcode|ek|f3i|xx=t0000}}"
* #41 ("f3i|xx=t0010", tristate, digits permitted)
* expected result: "1" (valid but unknown)
* actual result: "{{#invoke:mchklngcode|ek|f3i|xx=t0010}}"
* #42 ("fi3|xx=t0010", tristate, digits permitted but only in middle position)
* expected result: "0" (obviously invalid)
* actual result: "{{#invoke:mchklngcode|ek|fi3|xx=t0010}}"
* #43 ("3fi|xx=t0010", tristate, digits permitted but only in middle position)
* expected result: "0" (obviously invalid)
* actual result: "{{#invoke:mchklngcode|ek|3fi|xx=t0010}}"
: ---------------------------------------
* #50 ("grc|xx=k0000", 4 defaults explicitely confirmed, category mode)
* expected result: "" (empty string, good)
* actual result: "{{#invoke:mchklngcode|ek|grc|xx=k0000}}"
<pre>
* #51 ("fri|xx=k0000", 4 defaults explicitely confirmed, category mode)
* expected result: N/A (valid but unknown, categories)
* actual result: "{{#invoke:mchklngcode|ek|fri|xx=k0000}}"
* #52 ("fori|xx=k0000", 4 defaults explicitely confirmed, category mode)
* expected result: N/A (obviously invalid, categories)
* actual result: "{{#invoke:mchklngcode|ek|fori|xx=k0000}}"
</pre>
* note that tests #51 and #52 cannot be executed on the docs subpage
: ---------------------------------------
]===]
local chklngcode = {}
------------------------------------------------------------------------
---- CONSTANTS ----
------------------------------------------------------------------------
-- ban list (only 3-letter codes, maybe also bad 2-letter codes)
-- length of the list is NOT stored anywhere, the processing stops when "nil" comes
local contabisbanned = {}
contabisbanned = {'deu','eng','epo','fra','lat','por','rus','spa','swe'} -- 1...9
-- constant strings EO vs ID
local constrplki = "Modulo:mpiktbllki" -- EO
-- local constrplki = "Modul:mpiktbllki" -- ID
local constrneva = "Kategorio:Evidente nevalida lingvokodo" -- EO -- no brackets ("[[","]]") here
-- local constrneva = "Kategori:Kode bahasa jelas-jelas tidak valid" -- ID -- no brackets ("[[","]]") here
local constrneko = "Kategorio:Nekonata lingvokodo" -- EO -- no brackets ("[[","]]") here
-- local constrneko = "Kategori:Kode bahasa tidak diketahui" -- ID -- no brackets ("[[","]]") here
-- emergency brake (4 binary digits: nevaspec,nevagene,nekospec,nekogene)
local constrfilter = "0101" -- change one or several digits to ZERO to prevent categorization
------------------------------------------------------------------------
---- IMPORTS ----
------------------------------------------------------------------------
local piktbllki = require(constrplki) -- can crash here
------------------------------------------------------------------------
---- ORDINARY LOCAL HIGH LEVEL FUNCTIONS ----
------------------------------------------------------------------------
-- Local function LFFIXUNSAFE
-- Fix obviously invalid language code so that it can at least be used
-- inside name of a tracking category
-- # empty string replaced with "e-m-p-t-y"
-- # truncated to 14 octet:s if longer
-- # unsafe char:s are replaced with dot:s (safe are only "0"..."9" and
-- "A"..."Z" and "a"..."z" and "(" and ")" and "," and "-" and maybe ".")
-- Input : - strbahaya
-- Output : - strfixed
local function lffixunsafe (strbahaya)
local strfixed = ""
local numlencx = 0
local numcxaar = 0
local numuindex = 1 -- ONE-based
local boogood = false
if (strbahaya=="") then
strfixed = "e-m-p-t-y"
else
numlencx = string.len (strbahaya)
if (numlencx>14) then
strbahaya = string.sub (strbahaya,1,14)
numlencx = 14
end--if
while (true) do
if (numuindex>numlencx) then
break
end--if
numcxaar = string.byte (strbahaya,numuindex,numuindex)
boogood = false
if ((numcxaar>=48) and (numcxaar<=57)) then
boogood = true
end--if
if ((numcxaar>=65) and (numcxaar<=90)) then
boogood = true
end--if
if ((numcxaar>=97) and (numcxaar<=122)) then
boogood = true
end--if
if ((numcxaar==40) or (numcxaar==41)) then
boogood = true -- "()"
end--if
if ((numcxaar>=44) and (numcxaar<=46)) then
boogood = true -- ",-" maybe ."
end--if
if (boogood==false) then
numcxaar = 46 -- replace by dot "."
end--if
strfixed = strfixed .. string.char (numcxaar)
numuindex = numuindex + 1
end--while
end--if
return strfixed
end--function lffixunsafe
------------------------------------------------------------------------
-- Local function LFCHKKODIV
-- Check whether a string contains only 2 or 3 lowercase letters
-- or maybe digit in middle position or maybe equals "??" or maybe
-- additionally is not included on the ban list
-- Input : - strqooq -- string (empty is useless and returns
-- "true" ie "bad" but can't cause any harm)
-- - booquest -- "true" if special code "??" should pass
-- - boodigit -- "true" to allow digit in middle position
-- - boonoban -- "true" to skip test against ban table
-- Output : - booisbadlk -- bool "true" if the string is bad
-- needs const table "contabisbanned"
local function lfchkkodiv (strqooq, booquest, boodigit, boonoban)
local varomongkosong = "" -- for check against the ban list
local booisbadlk = false
local numchiiar = 0
local numukurran = 0
local numindeex = 0 -- ZERO-based
while (true) do -- fake (outer) loop
numukurran = string.len (strqooq)
if ((numukurran<2) or (numukurran>3)) then
booisbadlk = true
break -- to join mark
end--if
if ((booquest==false) or (strqooq~="??")) then
numchiiar = string.byte (strqooq,1,1)
if ((numchiiar<97) or (numchiiar>122)) then
booisbadlk = true
break -- to join mark
end--if
numchiiar = string.byte (strqooq,numukurran,numukurran)
if ((numchiiar<97) or (numchiiar>122)) then
booisbadlk = true
break -- to join mark
end--if
if (numukurran==3) then
numchiiar = string.byte (strqooq,2,2)
if ((boodigit==false) or ((numchiiar<48) or (numchiiar>57))) then
if ((numchiiar<97) or (numchiiar>122)) then
booisbadlk = true
break -- to join mark
end--if
end--if ((boodigit==false) or ((numchiiar<48) or (numchiiar>57))) then
end--if
end--if ((booquest==false) or (strqooq~="??")) then
if (boonoban==false) then
while (true) do -- ordinary inner loop
varomongkosong = contabisbanned[numindeex+1] -- amount of elem unknown
if (type(varomongkosong)~="string") then
break -- abort inner loop (then fake outer loop) due to end of table
end--if
numukurran = string.len (varomongkosong)
if ((numukurran<2) or (numukurran>3)) then
break -- abort inner loop (then fake outer loop) due to faulty table
end--if
if (strqooq==varomongkosong) then
booisbadlk = true
break -- abort inner loop (then fake outer loop) due to violation
end--if
numindeex = numindeex + 1
end--while -- ordinary inner loop
end--if (boonoban==false) then
break -- finally to join mark
end--while -- fake loop -- join mark
return booisbadlk
end--function lfchkkodiv
------------------------------------------------------------------------
-- Local function LFCHKKODKN
-- Check whether the code is known
-- invoked module "mpiktbllki" with parameter "-" returns
-- bool string "0" or "1" (known)
-- Input : - strqoqoq
-- Output : - booisunknown
-- needs imported module "piktbllki"
local function lfchkkodkn (strqoqoq)
local varfrominvo = ""
local booisunknown = false
varfrominvo = piktbllki.ek { args = { strqoqoq , "-" } }
if (varfrominvo~="1") then
booisunknown = true
end--if
return booisunknown
end--function lfchkkodkn
------------------------------------------------------------------------
-- Local function LFBREW2KAT
-- Brew 2 categories from the bad code (specific and generic)
-- Input : - strkatbase (kategory name with namespace prefix)
-- - strhintname (the bad code already sanitized)
-- - booxspec, booxgene
-- Output : - strduakucing (can be empty)
local function lfbrew2kat (strkatbase, strhintname, booxspec, booxgene)
local strduakucing = ""
if (booxspec) then
strduakucing = "[[" .. strkatbase .. " (" .. strhintname .. ")|" .. strhintname .. "]]"
end--if
if (booxgene) then
strduakucing = strduakucing .. "[[" .. strkatbase .. "]]"
end--if
return strduakucing
end--function lfbrew2kat
------------------------------------------------------------------------
---- MAIN EXPORTED FUNCTION ----
------------------------------------------------------------------------
function chklngcode.ek (arxframent)
-- general unknown type
local vartmp = 0 -- variable without type
-- special type "args" AKA "arx"
local arxourown = 0 -- metaized "args" from our own "frame"
local arxcaller = 0 -- metaized "args" from caller's "frame"
-- general "str"
local strkodo3 = "" -- code (obligatory)
local strkodo4 = "" -- code (optional)
local strret = "" -- output string
-- general "num"
local numbtkmo = 98 -- operation mode / type of result: "b" or "t" or "k"
local num012st3k = 2 -- tri-state sta "strkodo3"
local num012st4k = 2 -- tri-state sta "strkodo4" (remains 2 if only 1 code)
local num012stzz = 2 -- tri-state combo = min (num012st3k,num012st4k)
local numlong = 0 -- temp
local numchar = 0 -- temp
-- general "boo"
local boochktwo = false
local booalloqu = false -- "true" if "??" should pass
local booallodg = false -- "true" to allow digit in middle position
local booskipbt = false -- "true" to skip test against ban table
local boonocat = false -- from "nocat=true" from "arxcaller"
local boointer = false -- "true" on internal error (blocks categorization)
local boodoccek = false -- temp: do the check at all (maybe can be skipped)
local boonevaspec = true -- @
local boonevagene = true -- @ for "constrfilter", default is "true"
local boonekospec = true -- @
local boonekogene = true -- @
---- GUARD AGAINST INTERNAL ERROR ----
-- "constrneva" and "constrneko" must be assigned and non-empty
if ((type(constrneva)~="string") or (type(constrneko)~="string")) then
boointer = true -- internal error -- was preassigned to "false"
else
if ((constrneva=="") or (constrneko=="")) then
boointer = true -- internal error -- was preassigned to "false"
end--if
end--if
---- GET THE ARX:ES ----
if (boointer==false) then
arxourown = arxframent.args -- "args" from our own "frame"
arxcaller = arxframent:getParent().args -- "args" from caller's "frame"
end--if
---- SEIZE 1 OR 2 ANONYMOUS PARAMETERS AND "XX=" SENT BY CALLER TO US ----
while (true) do -- fake loop
if (boointer) then
break -- to join mark
end--if
if (arxourown[3]) then
boointer = true -- internal error -- was preassigned to "false"
break -- to join mark -- 3 anon params are not appreciated
end--if
vartmp = arxourown[1] -- can be "nil"
if (type(vartmp)=="string") then
strkodo3 = vartmp -- give a f**k about risk of empty string
end--if
vartmp = arxourown[2] -- can be "nil"
if (type(vartmp)=="string") then
strkodo4 = vartmp -- give a f**k about risk of empty string
end--if
vartmp = arxourown["xx"] -- can be "nil" -- optional named
if (type(vartmp)=="string") then
numlong = string.len (vartmp)
if (numlong~=5) then
boointer = true -- internal error -- was preassigned to "false"
break -- to join mark -- need 5 digits
end--if
numchar = string.byte (vartmp,1,1) -- need "b" (default) or "t" "k"
if (numchar==116) then
numbtkmo = 116 -- requested "t" -- was preassigned to 98 ie "b"
else
if (numchar==107) then
numbtkmo = 107 -- requested "k" -- was preassigned to 98 ie "b"
else
if (numchar~=98) then
boointer = true -- internal error -- was preassigned to "false"
break -- to join mark
end--if
end--if
end--if (numchar==116) else
numchar = string.byte (vartmp,2,2)
if (numchar==49) then
boochktwo = true -- was preassigned to "false" -- check 2 codes
else
if (numchar~=48) then
boointer = true -- internal error -- was preassigned to "false"
break -- to join mark
end--if
end--if (numchar==49) else
numchar = string.byte (vartmp,3,3)
if (numchar==49) then
booalloqu = true -- was preassigned to "false" -- allow "??"
else
if (numchar~=48) then
boointer = true -- internal error -- was preassigned to "false"
break -- to join mark
end--if
end--if (numchar==49) else
numchar = string.byte (vartmp,4,4)
if (numchar==49) then
booallodg = true -- was preassigned to "false" -- allow digit
else
if (numchar~=48) then
boointer = true -- internal error -- was preassigned to "false"
break -- to join mark
end--if
end--if (numchar==49) else
numchar = string.byte (vartmp,5,5)
if (numchar==49) then
booskipbt = true -- was preassigned to "false" -- skip the extra ban test
else
if (numchar~=48) then
boointer = true -- internal error -- was preassigned to "false"
break -- to join mark
end--if
end--if (numchar==49) else
end--if (type(vartmp)=="string") then
break -- finally to join mark
end--while -- fake loop -- join mark
---- SEIZE 1 OPTIONAL NAMED PARAMETER SENT BY SOMEONE TO CALLER ----
if (boointer==false) then
vartmp = arxcaller["nocat"] -- can be "nil"
if (type(vartmp)=="string") then
if (vartmp=="true") then
boonocat = true
end--if
end--if
end--if
---- CARRY OUT THE HARD WORK -- TEST FOR OBVIOUS INVALIDITY ----
-- this is NOT needed if:
-- # we already have an internal error
-- or
-- # result mode is "k" category and we have "nocat=true"
boodoccek = true
if (boointer) then
boodoccek = false
end--if
if ((numbtkmo==107) and boonocat) then -- "k" and "nocat=true"
boodoccek = false
end--if
if (boodoccek) then
if (lfchkkodiv(strkodo3,booalloqu,booallodg,booskipbt)) then
num012st3k = 0
end--if
end--if
if (boodoccek and boochktwo) then
if (lfchkkodiv(strkodo4,booalloqu,booallodg,booskipbt)) then
num012st4k = 0
end--if
end--if
---- CHECK WHETHER THE CODES ARE KNOWN ----
-- this is NOT needed if:
-- # we already have an internal error
-- or
-- # result mode is "b" binary (then we do not distinguish "1" from "2")
-- or
-- # result mode is "k" category and we have "nocat=true"
boodoccek = true
if (boointer) then
boodoccek = false
end--if
if (numbtkmo==98) then -- "b" bool / binary mode
boodoccek = false
end--if
if ((numbtkmo==107) and boonocat) then -- "k" and "nocat=true"
boodoccek = false
end--if
if ((num012st3k==2) and boodoccek) then
if (lfchkkodkn(strkodo3)) then
num012st3k = 1
end--if
end--if
if ((num012st4k==2) and boodoccek and boochktwo) then
if (lfchkkodkn(strkodo4)) then
num012st4k = 1
end--if
end--if
---- BREW MIN ----
-- we have 2 separate tristate results "num012st3k" and "num012st4k"
-- "num012st4k" preassigned to 2 and remains 2 all the time if
-- only one code is tested
-- an internal error ie "boointer" = "true" results in "num012stzz"
-- assigned to ZERO
if (boointer) then
num012stzz = 0 -- jaevlar
else
num012stzz = num012st3k
if (num012st4k<num012stzz) then
num012stzz = num012st4k -- combo num012stzz = min (num012st3k,num012st4k)
end--if
end--if
---- ASSIGN "STRRET" TO BOOL OR TRISTATE ----
-- possible modes in "numbtkmo" are 98 "b" (default) or 116 "t" or 107 "k"
if (numbtkmo==116) then -- "t" tristate
strret = string.char(num012stzz+48) -- this was rocket science
end--if
if (numbtkmo==98) then -- "b" bool
strret = "1" -- preassigned output string to report "accepted"
if (num012stzz==0) then
strret = "0" -- set output string to report "bad"
end--if
end--if
---- BREW CATEGORIES ----
-- here we process the "k" mode
-- we use the 2 separate tristate results "num012st3k" and "num012st4k"
-- 0 invalid -- 1 unknown -- 2 known
-- the strings are "constrneva" and "constrneko" and include the category
-- prefix and the name, but not "[[","]]" nor space before "(",")"
-- for obviously invalid codes we use "constrneva" and
-- include the bad string (sanitized)
-- for unknown codes we use "constrneko" and include the bad string
-- categorization can be blocked by several conditions:
-- # totally by "num012stzz" = 2 (code is or both codes are
-- known, no need to whine)
-- # totally by "nocat=true"
-- # totally by "boointer=true" (junk categories on
-- internal error NOT appreciated)
-- # selectively by "num012st.." = 2 (code is known, no need to whine)
-- # selectively by ZERO:s in "constrfilter", length must be
-- 4 char:s, default for 4 bool values is true
-- "strret" was preassigned to empty "" and is so
-- far untouched in the "k" mode
if ((num012stzz~=2) and (numbtkmo==107) and (boointer==false) and (boonocat==false)) then
if (string.len(constrfilter)==4) then
if (string.byte(constrfilter,1,1)==48) then
boonevaspec = false
end--if
if (string.byte(constrfilter,2,2)==48) then
boonevagene = false
end--if
if (string.byte(constrfilter,3,3)==48) then
boonekospec = false
end--if
if (string.byte(constrfilter,4,4)==48) then
boonekogene = false
end--if
end--if
strkodo3 = lffixunsafe (strkodo3) -- sanitize
if (num012st3k==0) then -- 2 possib in 1 of "num012st3k" & "num012st4k"
strret = strret .. lfbrew2kat (constrneva, strkodo3, boonevaspec, boonevagene)
end--if
if (num012st3k==1) then
strret = strret .. lfbrew2kat (constrneko, strkodo3, boonekospec, boonekogene)
end--if
if (boochktwo) then
strkodo4 = lffixunsafe (strkodo4) -- sanitize
if (num012st4k==0) then -- 2 possib in 1 of "num012st3k" & "num012st4k"
strret = strret .. lfbrew2kat (constrneva, strkodo4, boonevaspec, boonevagene)
end--if
if (num012st4k==1) then
strret = strret .. lfbrew2kat (constrneko, strkodo4, boonekospec, boonekogene)
end--if
end--if
end--if ((num012stzz~=2) ... (boonocat==false)) then
---- RETURN THE JUNK STRING ----
return strret -- can vary depending on result type, even be empty
end--function
---- RETURN THE JUNK LUA TABLE ----
return chklngcode
