Mô đun:Internet Archive

--

For functions related to Internet Archive

Notes:

1. Internet Archive runs Elasticsearch search engine as of 4 Nov 2015

2. Program flowchart:

Break name down into number of words
Build a base URL based on number of words (1,2,3,4,5+), use of sopt=t switch, and availability of birth-death dates
If any words contain extended-ascii characters
append extra code for wildcards based on sopt=t or w
return finished URL

3. URL length should not exceed 2000 characters or it will break certain popular browsers

4. Wildcard () replacements should be avoided in the first letter of the first word, and with any single-letter words

5. Changing search formulations will have impacts on existing uses of the template and off-line tools which are optimized for these search recipes.


local p = {}

--

Đối với Bản mẫu:Internet Archive author

function p.author(frame)

local pframe = frame:getParent()
local args = pframe.args

local tname = "Internet Archive author" -- name of calling template. Change if template rename.

local name = nil -- article name (default: current page name)
dname = nil -- display name (default: current page name)
local sname = nil -- search name (default: current page name)
local sopt = nil -- search options (default: nil)
byabout = "Các tác phẩm của hoặc nói về"
tagline = "tại Internet Archive"
urlhead = "//archive.org/search.php?query="
mydate = "" -- birth-death date

--- Determine name
name = trimArg(args.name) -- When using template outside main article space, the 'name' parameter is required (not optional)
if not name then
name = mw.title.getCurrentTitle().text
end
dname = mw.ustring.gsub(name,'%s+%([^%(]-%)$', ) -- Remove the final disambig parentheses
sname = dname
if trimArg(args.sname) then
sname = trimArg(args.sname)
end
if trimArg(args.dname) then
dname = trimArg(args.dname)
end

--- Determine search option
sopt = trimArg(args.sopt)
if sopt then
sopt = mw.ustring.lower(sopt)
if sopt == "tight" then sopt = "t" end
if sopt == "tightx" then sopt = "tx" end
if sopt == "wild" then sopt = "w" end
if sopt ~= "t" and sopt ~= "tx" and sopt ~= "w" then sopt = "unknown" end
end

--- Determine tagline
if trimArg(args.coda) then
tagline = tagline .. " " .. trimArg(args.coda)
end

--- Custom search. Do early to avoid unnecessary processing.
if trimArg(args.search) then
local search = p.ia_url_encode(trimArg(args.search))
return "[" .. urlhead .. search .. " " .. byabout .. " " .. dname .. "] " .. tagline
end

-- Determine media string
media = p.mediaTypes(args.media)
if media == "" then
mediaopen = "%28" -- added a default mediatype Dec 2015 see p.mediaTypes()
else
mediaopen = "%28"
end

-- Determine date of birth and death
local temp = mw.text.split(p.bdDate(args.birth, args.death, name), " ")
local birth = temp[1]
local death = temp[2]
if birth "Error" or death "Error" then
return "Lỗi trong :Bản mẫu:"..tname..": " ..name.. " không tồn tại."
end

--- Split sname into words and count words
local N = mw.text.split(sname, " ")
local l, count = mw.ustring.gsub(sname, "%S+", "")
if count == 0 then
return "Lỗi trong :Bản mẫu:"..tname..": Tên không có ký tự."
end

--- Date string
if birth ~= "none" and death ~= "none" then
if p.ia_extendedascii(N[count]) == 1 then
mydate = "%20OR%20%28%22"..birth.."-"..death.."%22%20AND%20%28%22"..p.urlX(N[count]).."%22%20OR%20"..p.urlX(p.ia_deaccent(N[count])).."%29%29"
else
mydate = "%20OR%20%28%22"..birth.."-"..death.."%22%20AND%20"..p.urlX(N[count]).."%29"
end
end

--- wild string
wild = "%29"
if sopt "w" and p.ia_extendedascii(sname) 1 then
if p.wildcheck(N, count) == 1 then
myurl = p.wildfix(N, count)
return p.IArender()
end
if count 3 then
-- (first last)
wild = "%20OR%20%28" .. p.ia_url_encode(p.ia_extendedascii2wildcard(sname)) .. "%29%29"
end
if count == 3 then
-- (first last)
wild = "%20OR%20%28" .. p.ia_url_encode(p.ia_extendedascii2wildcard(N[1])) .. "%20" .. p.ia_url_encode(p.ia_extendedascii2wildcard(N[3])) .. "%29%29"
end
end

--

Format URL



if count == 1 then

myurl = p.oneWord(sname)

if sopt "t" and p.ia_extendedascii(sname) 1 then
local plainname = p.ia_deaccent(sname)
local A1 = "%20OR%20%22"..p.urlX(plainname)
myurl = myurl .. A1 .. "%22"
return p.IArender()
end

return p.IArender()

end

if count == 2 then

myurl = p.twoWords(N, sopt)

if sopt "t" and p.ia_extendedascii(sname) 1 then
local plainname = p.ia_deaccent(sname)
local PN = mw.text.split(plainname, " ")
-- Last, First
local A1 = "%20OR%20%22"..p.urlX(PN[2]).."%2C%20"..p.urlX(PN[1])
-- First Last
local A2 = "%22%20OR%20%22"..p.urlX(PN[1]).."%20"..p.urlX(PN[2])
myurl = myurl .. A1 .. A2 .. "%22"
return p.IArender()
end

return p.IArender()

end

if count == 3 then

myurl = p.threeWords(N, sopt)

if sopt "t" and p.ia_extendedascii(sname) 1 then
local plainname = p.ia_deaccent(sname)
local PN = mw.text.split(plainname, " ")
local FIRST = p.urlX(PN[1])
local MIDDLE = p.urlX(PN[2])
local LAST = p.urlX(PN[3])
local firstinitialp = p.urlX( p.firstLetter(PN[1]) )
local middleinitialp = p.urlX( p.firstLetter(PN[2]) )
-- First Middle Last
local A1 = "%20OR%20%22"..FIRST.."%20"..MIDDLE.."%20"..LAST
-- Last, First Middle
local A2 = "%22%20OR%20%22"..LAST.."%2C%20"..FIRST.."%20"..MIDDLE
-- Last, First M.
local A3 = "%22%20OR%20%22"..LAST.."%2C%20"..FIRST.."%20"..middleinitialp.."%2E"
-- Last, F. M.
local A4 = "%22%20OR%20%22"..LAST.."%2C%20"..firstinitialp..".%20"..middleinitialp.."%2E"
local ALL = A1 .. A2 .. A3 .. A4 .. "%22"
myurl = myurl .. ALL
return p.IArender()
end

return p.IArender()

end

if count == 4 then

myurl = p.fourWords(N, sopt)

if sopt "t" and p.ia_extendedascii(sname) 1 then
local plainname = p.ia_deaccent(sname)
local PN = mw.text.split(plainname, " ")
local FIRST = p.urlX(PN[1])
local SECOND = p.urlX(PN[2])
local THIRD = p.urlX(PN[3])
local LAST = p.urlX(PN[4])
local firstinitialp = p.urlX( p.firstLetter(PN[1]) )
local secondinitialp = p.urlX( p.firstLetter(PN[2]) )
local thirdinitialp = p.urlX( p.firstLetter(PN[3]) )
-- Last, First Second Third
local A1 = "%20OR%20%22"..LAST.."%2C%20"..FIRST.."%20"..SECOND.."%20"..THIRD
-- First Second Third Last
local A2 = "%22%20OR%20%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST
-- Last, F. S. T.
local A3 = "%22%20OR%20%22"..LAST.."%2C%20"..firstinitialp.."%2E%20"..secondinitialp.."%2E%20"..thirdinitialp.."%2E"
local ALL = A1 .. A2 .. A3 .. "%22"
myurl = myurl .. ALL
return p.IArender()
end

return p.IArender()

end

if count > 4 then

myurl = ""

if sopt "w" and p.ia_extendedascii(sname) 1 then
myurl = "%28"
end

myurl = myurl .. "%28" .. p.ia_url_encode(sname)

if sopt "w" and p.ia_extendedascii(sname) 1 then
myurl = myurl .. "%29"
end

if sopt "t" and p.ia_extendedascii(sname) 1 then
local plainname = p.ia_deaccent(sname)
local A1 = "%29%20OR%20%28"..p.ia_url_encode(plainname)
myurl = myurl .. A1
return p.IArender()
end

return p.IArender()

end

return "Unknown error (1). Please check documentation for Template:"..tname..""

end

-- Build final output and render
function p.IArender()

return "[" .. urlhead .. mediaopen .. myurl .. wild .. mydate .. media .. " " .. byabout .. " " .. dname .. "] " .. tagline

end

function p.oneWord(sname)

local nameurl = p.ia_url_encode(sname)
local A1 = "%28subject%3A%22"..nameurl
local A2 = "%22%20OR%20creator%3A%22"..nameurl
local A3 = "%22%20OR%20description%3A%22"..nameurl
local A4 = "%22%20OR%20title%3A%22"..nameurl
return A1 .. A2 .. A3 .. A4 .. "%22"
end

function p.twoWords(N, sopt)
local FIRST = p.urlX(N[1])
local LAST = p.urlX(N[2])
local firstinitial = p.urlX( p.firstLetter(N[1]) )

-- Last, First
local S1 = "%28subject%3A%22"..LAST.."%2C%20"..FIRST
-- First Last
local S2 = "%22%20OR%20subject%3A%22"..FIRST.."%20"..LAST
local SALL = S1..S2
-- Last, First
local C1 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..FIRST
-- First Last
local C2 = "%22%20OR%20creator%3A%22"..FIRST.."%20"..LAST
local CALL = C1..C2
-- First Last
local T1 = "%22%20OR%20title%3A%22"..FIRST.."%20"..LAST
local TALL = T1
-- Last, First
local D1 = "%22%20OR%20description%3A%22"..LAST.."%2C%20"..FIRST
-- First Last
local D2 = "%22%20OR%20description%3A%22"..FIRST.."%20"..LAST
local DALL = D1..D2

if sopt "t" or sopt "tx" then
return SALL .. CALL .. TALL .. DALL .. "%22"
else
-- Last, F.
local C3 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..firstinitial.."%2E"
local CALL = CALL..C3
return SALL .. CALL .. TALL .. DALL .. "%22"
end

end

function p.threeWords(N, sopt)
-- CAUTION: The following is near the max 2000 character URL limit for most browsers when using long names
-- such as "René-Nicolas Dufriche Desgenettes".

local FIRST = p.urlX(N[1])
local MIDDLE = p.urlX(N[2])
local LAST = p.urlX(N[3])
local firstinitial = p.urlX( p.firstLetter(N[1]) )
local middleinitial = p.urlX( p.firstLetter(N[2]) )

-- Last, First Middle
local S1 = "%28subject%3A%22"..LAST.."%2C%20"..FIRST.."%20"..MIDDLE
-- Last, First M.
local S2 = "%22%20OR%20subject%3A%22"..LAST.."%2C%20"..FIRST.."%20"..middleinitial.."%2E"
-- Last, F. M.
local S3 = "%22%20OR%20subject%3A%22"..LAST.."%2C%20"..firstinitial.."%2E%20"..middleinitial.."%2E"
-- First Middle Last
local S4 = "%22%20OR%20subject%3A%22"..FIRST.."%20"..MIDDLE.."%20"..LAST
-- First M. Last
local S5 = "%22%20OR%20subject%3A%22"..FIRST.."%20"..middleinitial.."%2E%20"..LAST
-- F. M. Last
local S6 = "%22%20OR%20subject%3A%22"..firstinitial.."%2E%20"..middleinitial.."%2E%20"..LAST
local SALL = S1..S2..S3..S4..S5..S6
-- First Middle Last
local C1 = "%22%20OR%20creator%3A%22"..FIRST.."%20"..MIDDLE.."%20"..LAST
-- First M. Last
local C2 = "%22%20OR%20creator%3A%22"..FIRST.."%20"..middleinitial.."%2E%20"..LAST
-- F. M. Last
local C3 = "%22%20OR%20creator%3A%22"..firstinitial.."%2E%20"..middleinitial.."%2E%20"..LAST
-- F. Middle Last
local C4 = "%22%20OR%20creator%3A%22"..firstinitial.."%2E%20"..MIDDLE.."%20"..LAST
-- Last, First Middle
local C5 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..FIRST.."%20"..MIDDLE
-- Last, First M.
local C6 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..FIRST.."%20"..middleinitial.."%2E"
-- Last, F. M.
local C7 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..firstinitial.."%2E%20"..middleinitial.."%2E"
-- Last, F. M.
local C8 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..firstinitial.."%2E%20"..MIDDLE
local CALL = C1..C2..C3..C4..C5..C6..C7..C8
-- First Middle Last
local T1 = "%22%20OR%20title%3A%22"..FIRST.."%20"..MIDDLE.."%20"..LAST
-- First M. Last
local T2 = "%22%20OR%20title%3A%22"..FIRST.."%20"..middleinitial.."%2E%20"..LAST
-- F. M. Last
local T3 = "%22%20OR%20title%3A%22"..firstinitial.."%2E%20"..middleinitial.."%2E%20"..LAST
local TALL = T1..T2..T3
-- First Middle Last
local D1 = "%22%20OR%20description%3A%22"..FIRST.."%20"..MIDDLE.."%20"..LAST
-- First M. Last
local D2 = "%22%20OR%20description%3A%22"..FIRST.."%20"..middleinitial.."%2E%20"..LAST
-- F. M. Last
local D3 = "%22%20OR%20description%3A%22"..firstinitial.."%2E%20"..middleinitial.."%2E%20"..LAST
-- Last, First Middle
local D4 = "%22%20OR%20description%3A%22"..LAST.."%2C%20"..FIRST.."%20"..MIDDLE
-- Last, First M.
local D5 = "%22%20OR%20description%3A%22"..LAST.."%2C%20"..FIRST.."%20"..middleinitial.."%2E"
local DALL = D1..D2..D3..D4..D5

if sopt "t" or sopt "tx" then
return SALL .. CALL .. TALL .. DALL .. "%22"
else
-- Last, First
local S7 = "%22%20OR%20subject%3A%22"..LAST.."%2C%20"..FIRST
-- First Last
local S8 = "%22%20OR%20subject%3A%22"..FIRST.."%20"..LAST
local SALL = SALL..S7..S8
-- First Last
local C9 = "%22%20OR%20creator%3A%22"..FIRST.."%20"..LAST
-- Last, First
local C10 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..FIRST
local CALL = CALL..C9..C10
-- First Last
local T4 = "%22%20OR%20title%3A%22"..FIRST.."%20"..LAST
local TALL = TALL..T4
-- First Last
local D6 = "%22%20OR%20description%3A%22"..FIRST.."%20"..LAST
-- Last, First
local D7 = "%22%20OR%20description%3A%22"..LAST.."%2C%20"..FIRST
local DALL = DALL..D6..D7

return SALL .. CALL .. TALL .. DALL .. "%22"
end
end

function p.fourWords(N, sopt)

local FIRST = p.urlX(N[1])
local SECOND = p.urlX(N[2])
local THIRD = p.urlX(N[3])
local LAST = p.urlX(N[4])

local firstinitial = p.firstLetter(N[1])
local secondinitial = p.firstLetter(N[2])
local thirdinitial = p.firstLetter(N[3])

if sopt "t" or sopt "tx" then
-- Last, First Second Third
local S1 = "%28subject%3A%22"..LAST.."%2C%20"..FIRST.."%20"..SECOND.."%20"..THIRD
-- First Second Third Last
local S2 = "%22%20OR%20subject%3A%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST
-- Last, First Second Third
local C1 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..FIRST.."%20"..SECOND.."%20"..THIRD
-- First Second Third Last
local C2 = "%22%20OR%20creator%3A%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST
-- First Second Third Last
local T1 = "%22%20OR%20title%3A%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST
-- First Second Third Last
local D1 = "%22%20OR%20description%3A%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST

return S1..S2..C1..C2..T1..D1.."%22"
end

-- Last, First Second Third
local S1 = "%28subject%3A%22"..LAST.."%2C%20"..FIRST.."%20"..SECOND.."%20"..THIRD
-- First Second Third Last
local S2 = "%22%20OR%20subject%3A%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST
-- Last, First Second Third
local C1 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..FIRST.."%20"..SECOND.."%20"..THIRD
-- First Second Third Last
local C2 = "%22%20OR%20creator%3A%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST
-- Last, F. S. T.
local C3 = "%22%20OR%20creator%3A%22"..LAST.."%2C%20"..firstinitial.."%2E%20"..secondinitial.."%2E%20"..thirdinitial.."%2E"
-- First Second Third Last
local T1 = "%22%20OR%20title%3A%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST
-- First Second Third Last
local D1 = "%22%20OR%20description%3A%22"..FIRST.."%20"..SECOND.."%20"..THIRD.."%20"..LAST

return S1..S2..C1..C2..C3..T1..D1.."%22"

end

-- ElasticSearch speed/resource problems if first letter of first word is "" wildcard ie. accented letter
-- Build special search in these cases.
-- https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html_wildcards
function p.wildfix(N, count)

--- Split along "-" and use only first word ie. John-Taylor-Smith becomes John
local NF = mw.text.split(N[1], "-")
local NL = mw.text.split(N[count], "-")

-- ..but use full name for 1-word names
if count == 1 then
NF[1] = N[1]
NL[1] = N[1]
end

-- ((Fïrst OR First) AND (Lást OR Last))
return "%28%28%22" .. NF[1] .. "%22%20OR%20" .. p.ia_deaccent(NF[1]) .. "%29%20AND%20%28%22" .. NL[1] .. "%22%20OR%20" .. p.ia_deaccent(NL[1]) .. "%29"

end

-- Return 1 if the first letter of first word, or any single-letter word, is extended ascii
function p.wildcheck(N, count)
local i = 0

-- first letter of first word is extended ascii
if N[1]:byte(1) 126 then return 1 end

-- any single-letter word that is composed of only extended ascii
while i 126 then return 1 end
end
end
return 0
end

function trimArg(arg)
if arg "" or arg nil then
return nil
else
return mw.text.trim(arg)
end
end

function p.mediaTypes(argsmedia)

-- Added a default mediatype Dec 2015 due to too many false positives in the software mediatype, caused by birth-death dates catching numbers in source codes
local media = "-mediatype:software"

if argsmedia ~="" and argsmedia ~=nil then
local medialist = mw.text.split(mw.text.trim(argsmedia), " ")
local al, acount = mw.ustring.gsub(mw.text.trim(argsmedia), "%S+", "")
local i = 0
repeat -- the following could be condensed but repetitive for clarity
i = i + 1
if(mw.ustring.lower(medialist[i]) "text" or mw.ustring.lower(medialist[i]) "texts") then
media = media .. p.ia_url_encode(" OR mediatype:texts")
end
if(mw.ustring.lower(medialist[i]) == "audio") then
media = media .. p.ia_url_encode(" OR mediatype:audio")
end
if(mw.ustring.lower(medialist[i]) == "video") then
media = media .. p.ia_url_encode(" OR mediatype:video")
end
until i == acount
end

media = "%29%20AND%20%28" .. media .. "%29"

return media

end

-- Alt way to get b/d dates via getContent()
function p.bdDateAlt(argsbirth, argsdeath, name)

local pagetext = nil
local birth = "none"
local death = "none"

-- Load the page
local t = mw.title.new(name)
if(t.exists) then
pagetext = t:getContent()
end
if pagetext == nil then
return "Error"
end

-- Remove false positives
pagetext = mw.ustring.gsub( mw.ustring.gsub(pagetext, "", ""), ".-", "")

-- "Category:1900 births"
if argsbirth "" or argsbirth nil then
local birthcheck = mw.ustring.match(pagetext, "%[%[%s-[Tt]hể loại:%s-%d+%.?%d%s-births%s-%]%]" )
if birthcheck ~= nil then
birth = mw.ustring.match(birthcheck, "%d+%.?%d")
else
birth = "none"
end
else
birth = mw.text.trim(argsbirth)
end

-- "Category:2000 deaths"
if argsdeath "" or argsdeath nil then
local deathcheck = mw.ustring.match(pagetext, "%[%[%s-[Tt]hể loại:%s-%d+%.?%d%s-deaths%s-%]%]" )
if deathcheck ~= nil then
death = mw.ustring.match(deathcheck, "%d+%.?%d")
else
death = "none"
end
else
death = mw.text.trim(argsdeath)
end

return birth .. " " .. death

end

-- Get b/d dates via Wikidata.
--
function p.bdDate(argsbirth, argsdeath, name)

local pagetext = nil
local birth = "none"
local death = "none"


entity = mw.wikibase.getEntityObject()
if not entity or not entity.claims then
-- Alternative if template not on a page in mainspace. This is needed since Wikidata can only be retrieved
-- for the article where the template is located.
return p.bdDateAlt(argsbirth, argsdeath, name)
end

-- Note: The below uses formatPropertyValues() to get and format the date from Wikidata.
-- For an alternative method, see sandbox revision dated 5:58 am, 15 October 2014
if argsbirth "" or argsbirth nil then
local birthtable = entity:formatPropertyValues( 'P569' )
local birthsplit = mw.text.split(birthtable["value"], " ")
local l, count = mw.ustring.gsub(birthtable["value"], "%S+", "")
if count > 0 then
if string.find(birthsplit[count], "^%d") then
birth = birthsplit[count]
elseif string.find(birthsplit[count], "BCE") then
birth = birthsplit[count - 1]
elseif string.find(birthsplit[count], "BC") then
birth = birthsplit[count - 1]
elseif string.find(birthsplit[count], "AD") then
birth = birthsplit[count - 1]
end
end
else
birth = mw.text.trim(argsbirth)
end

if argsdeath "" or argsdeath nil then
local deathtable = entity:formatPropertyValues( 'P570' )
local deathsplit = mw.text.split(deathtable["value"], " ")
local l, count = mw.ustring.gsub(deathtable["value"], "%S+", "")
if count > 0 then
if string.find(deathsplit[count], "^%d") then
death = deathsplit[count]
elseif string.find(deathsplit[count], "BCE") then
death = deathsplit[count - 1]
elseif string.find(deathsplit[count], "BC") then
death = deathsplit[count - 1]
elseif string.find(deathsplit[count], "AD") then
death = deathsplit[count - 1]
end
end
else
death = mw.text.trim(argsdeath)
end

if birth "none" and death "none" then
-- Alternative if Wikidata is missing data
-- return p.bdDateAlt(name)
return birth .. " " .. death
else
return birth .. " " .. death
end

end

--- URL-encode special characters
--- Note: this function was added later to deal with "&" characters instead of using p.ia_url_encode since
--- that may break existing instances of the template.
function p.urlX(str)
if (str) then
str = mw.ustring.gsub (str, "&", "%%26")
end
return str
end

--- URL-encode a string
--- http://lua-users.org/wiki/StringRecipes
---
function p.ia_url_encode(str)
if (str) then
str = mw.ustring.gsub (str, "\n", "\r\n")
str = mw.ustring.gsub (str, "([^%w %-%_%.%~])",
function (c) return mw.ustring.format ("%%%02X", string.byte(c)) end)
str = mw.ustring.gsub (str, " ", "+")
end
return str
end

-- Does str contain extended ascii? 1 = yes
function p.ia_extendedascii(str)
for i = 1, str:len() do
if (str:byte(i) >= 32 and str:byte(i) eg. Pierre-Jean -> Pierre Jean
function p.ia_extendedascii2wildcard(str)
local s = ""
local j = 0
local k = 0
for i = 1, str:len() do
k = str:byte(i)
if k >= 32 and k <= 126 then
-- For list of Lucene special characters needing to be escaped:
-- http://lucene.apache.org/core/4_10_0/queryparser/org/apache/lucene/queryparser/classic/package-summary.htmlEscaping_Special_Characters
-- We only worry about - (45) and " (34) since the others are unlikely to appear in a proper name.
-- Also ' (39) since it is sometimes the extended character ’
if k 34 or k 39 then
s = s .. ""
elseif k == 45 then
s = s .. " "
else
s = s .. str:sub(i,i)
end
else
if j == 1 then
s = s .. ""
j = 2
end
if j == 0 then j = 1 end
if j == 2 then j = 0 end
end
end
return s
end

-- Replace accented letters with non-accented equivalent letters
-- Note: this is not a complete list of all possible accented letters. It is
-- all of the accented letters found in the first 10,000 names using
-- the Internet Archive author template.
function p.ia_deaccent(str)
local s = str

s = mw.ustring.gsub(s, "á", "a")
s = mw.ustring.gsub(s, "a︡", "a")
s = mw.ustring.gsub(s, "Á", "A")
s = mw.ustring.gsub(s, "ă", "a")
s = mw.ustring.gsub(s, "â", "a")
s = mw.ustring.gsub(s, "æ", "ae")
s = mw.ustring.gsub(s, "Æ", "AE")
s = mw.ustring.gsub(s, "à", "a")
s = mw.ustring.gsub(s, "ā", "a")
s = mw.ustring.gsub(s, "Ā", "A")
s = mw.ustring.gsub(s, "ą", "a")
s = mw.ustring.gsub(s, "å", "a")
s = mw.ustring.gsub(s, "Å", "A")
s = mw.ustring.gsub(s, "ã", "a")
s = mw.ustring.gsub(s, "ä", "a")
s = mw.ustring.gsub(s, "Ä", "A")
s = mw.ustring.gsub(s, "β", "B")
s = mw.ustring.gsub(s, "ć", "c")
s = mw.ustring.gsub(s, "č", "c")
s = mw.ustring.gsub(s, "Č", "C")
s = mw.ustring.gsub(s, "ç", "c")
s = mw.ustring.gsub(s, "Ç", "C")
s = mw.ustring.gsub(s, "ĉ", "c")
s = mw.ustring.gsub(s, "ď", "d")
s = mw.ustring.gsub(s, "đ", "d")
s = mw.ustring.gsub(s, "é", "e")
s = mw.ustring.gsub(s, "É", "E")
s = mw.ustring.gsub(s, "ě", "e")
s = mw.ustring.gsub(s, "ê", "e")
s = mw.ustring.gsub(s, "è", "e")
s = mw.ustring.gsub(s, "È", "E")
s = mw.ustring.gsub(s, "ε", "e")
s = mw.ustring.gsub(s, "ē", "e")
s = mw.ustring.gsub(s, "Ē", "E")
s = mw.ustring.gsub(s, "ę", "e")
s = mw.ustring.gsub(s, "ð", "e")
s = mw.ustring.gsub(s, "ë", "e")
s = mw.ustring.gsub(s, "Ë", "E")
s = mw.ustring.gsub(s, "γ", "Y")
s = mw.ustring.gsub(s, "ħ", "h")
s = mw.ustring.gsub(s, "i︠a︡", "ia")
s = mw.ustring.gsub(s, "í", "i")
s = mw.ustring.gsub(s, "i︠", "i")
s = mw.ustring.gsub(s, "ĭ", "i")
s = mw.ustring.gsub(s, "Í", "I")
s = mw.ustring.gsub(s, "î", "i")
s = mw.ustring.gsub(s, "Î", "I")
s = mw.ustring.gsub(s, "ì", "i")
s = mw.ustring.gsub(s, "ī", "i")
s = mw.ustring.gsub(s, "ł", "i")
s = mw.ustring.gsub(s, "ï", "i")
s = mw.ustring.gsub(s, "Ï", "I")
s = mw.ustring.gsub(s, "ĺ", "I")
s = mw.ustring.gsub(s, "Ĺ", "L")
s = mw.ustring.gsub(s, "μ", "u")
s = mw.ustring.gsub(s, "µ", "u")
s = mw.ustring.gsub(s, "ń", "n")
s = mw.ustring.gsub(s, "ň", "n")
s = mw.ustring.gsub(s, "ņ", "n")
s = mw.ustring.gsub(s, "ñ", "n")
s = mw.ustring.gsub(s, "Ñ", "N")
s = mw.ustring.gsub(s, "ó", "o")
s = mw.ustring.gsub(s, "Ó", "O")
s = mw.ustring.gsub(s, "ô", "o")
s = mw.ustring.gsub(s, "œ", "oe")
s = mw.ustring.gsub(s, "ò", "o")
s = mw.ustring.gsub(s, "ō", "o")
s = mw.ustring.gsub(s, "ø", "o")
s = mw.ustring.gsub(s, "Ø", "o")
s = mw.ustring.gsub(s, "õ", "o")
s = mw.ustring.gsub(s, "ö", "o")
s = mw.ustring.gsub(s, "ő", "o")
s = mw.ustring.gsub(s, "Ö", "O")
s = mw.ustring.gsub(s, "φ", "o")
s = mw.ustring.gsub(s, "ŕ", "r")
s = mw.ustring.gsub(s, "ř", "r")
s = mw.ustring.gsub(s, "Ř", "R")
s = mw.ustring.gsub(s, "ß", "ss")
s = mw.ustring.gsub(s, "ś", "s")
s = mw.ustring.gsub(s, "Ś", "S")
s = mw.ustring.gsub(s, "š", "s")
s = mw.ustring.gsub(s, "ṣ", "s")
s = mw.ustring.gsub(s, "Š", "S")
s = mw.ustring.gsub(s, "ş", "s")
s = mw.ustring.gsub(s, "Ş", "S")
s = mw.ustring.gsub(s, "ŝ", "s")
s = mw.ustring.gsub(s, "σ", "s")
s = mw.ustring.gsub(s, "ť", "t")
s = mw.ustring.gsub(s, "ţ", "t")
s = mw.ustring.gsub(s, "τ", "t")
s = mw.ustring.gsub(s, "þ", "p")
s = mw.ustring.gsub(s, "Þ", "p")
s = mw.ustring.gsub(s, "ú", "u")
s = mw.ustring.gsub(s, "Ú", "U")
s = mw.ustring.gsub(s, "û", "u")
s = mw.ustring.gsub(s, "ù", "u")
s = mw.ustring.gsub(s, "ū", "u")
s = mw.ustring.gsub(s, "ů", "u")
s = mw.ustring.gsub(s, "ü", "u")
s = mw.ustring.gsub(s, "Ü", "U")
s = mw.ustring.gsub(s, "ŵ", "w")
s = mw.ustring.gsub(s, "ý", "y")
s = mw.ustring.gsub(s, "ŷ", "y")
s = mw.ustring.gsub(s, "¥", "y")
s = mw.ustring.gsub(s, "ÿ", "y")
s = mw.ustring.gsub(s, "Ÿ", "Y")
s = mw.ustring.gsub(s, "ź", "z")
s = mw.ustring.gsub(s, "Ž", "Z")
s = mw.ustring.gsub(s, "ž", "z")
s = mw.ustring.gsub(s, "ż", "z")
s = mw.ustring.gsub(s, "Ż", "Z")

return s

end

return p