Module:a or an
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This module implements Template:a or an. Exception words are stored at /words.
External links[edit source]
- Module:A or an at Wikipedia, the free Terran-based encyclopedia that anyone can edit.
local p = {}
local getArgs = require('Module:Arguments').getArgs
local words = mw.loadData('Module:A or an/words')
local find = mw.ustring.find
local gsub = mw.ustring.gsub
local lower = mw.ustring.lower
local match = mw.ustring.match
local lcVChars = 'aeiouà-æè-ïò-öø-üāăąēĕėęěĩīĭįıijōŏőœũūŭůűų'
local ucVvChars = 'AEFHILMNORSXÀ-ÆÈ-ÏÒ-ÖØĀĂĄĒĔĖĘĚĨĪĬĮıIJŌŎŐŒÑĤĦĹĻĽĿŁŃŅŇŊŔŖŘŚŜŞ'
local function findWord(s, t)
for i, v in ipairs(t) do
if find(s, '^' .. v .. '$') then
return true
end
end
end
function p._main(args)
local s = args[1]
local pron = 'a'
local ret = ''
if s and s ~= '' then
s = gsub(s, '<%/?[A-Za-z]+[^>]*>', '') -- Remove HTML tags
s = gsub(s, '%[%[[^%|]+%|(.-)%]%]', '%1') -- Remove wikilinks
s = gsub(gsub(s, '%[%[', ''), '%]%]', '')
s = gsub(s, '^["%$\'%(<%[%{¢-¥₠-₿]+', '') -- Strip some symbols at the beginning
s = match(s, '^%.?[0-9%u%l]+') or s -- Extract the first word
if find(s, '^[0-9]') then -- It begins with a number
s = match(s, '^[0-9]*') -- Extract the number
if findWord(s, words['vNums']) then -- '18' etc.
pron = 'an'
end
elseif match(s, '^[0-9%u]*$') then -- It looks like an acronym
if find(s, '^[' .. ucVvChars .. ']')
and not findWord(s, words['cvAcronyms']) -- Exclude 'NASA' etc.
then
pron = 'an'
end
else
s = lower(s) -- Uncapitalize
if find(s, '^['.. lcVChars .. ']') then -- It begins with a vowel
if not findWord(s, words['vcWords']) -- Exclude 'euro' etc.
or findWord(s, words['vvWords']) -- But not 'Euler' etc.
then
pron = 'an'
end
elseif args.variety and lower(args.variety) == 'us' -- 'herb' etc.
and findWord(s, words['cvWordsUS'])
or findWord(s, words['cvWords']) -- 'hour' etc.
then
pron = 'an'
end
end
ret = pron .. ' ' .. args[1]
end
return ret
end
function p.main(frame)
local args = getArgs(frame)
return p._main(args)
end
return p