Module: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 = {}

--[[

For Template: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 = "Works by or about"

tagline = "at the Internet Archive"

urlhead = "https://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 "Error in :Template:"..tname..": " ..name.. " doesn't exist."

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 "Error in :Template:"..tname..": Zero-word name."

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

--- 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 or 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

--[[

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

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

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) < 32 or N[1]:byte(1) > 126 then return 1 end

-- any single-letter word that is composed of only extended ascii

while i < count do

i = i + 1

if N[i]:len() == 1 then

if N[i]:byte(1) < 32 or N[i]:byte(1) > 126 then return 1 end

end

return 0

end

function trimArg(arg)

if arg == "" or arg == nil then

return nil

else

return mw.text.trim(arg)

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-[Cc]ategory:%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-[Cc]ategory:%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

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

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

--- 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) <= 126) and str:byte(i) ~= 39 then -- 39 = "'"

--do nothing

else

return 1

end

return 0

end

-- UTF-8 aware replacement for string.sub() which doesn't support UTF-8.

-- Note: Using instead of mw.ustring.sub() which I suspect(?) might be cause of intermittent error, and faster here for first-letter job.

-- Source: prapin @ Stack Overflow http://stackoverflow.com/questions/13235091/extract-the-first-letter-of-a-utf-8-string-with-lua

function p.firstLetter(str)

return str:match("[%z\1-\127\194-\244][\128-\191]*")

end

-- Replace all extended ascii characters with wildcard '*'

-- Replace "-" with 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.html#Escaping_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

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