Module:Sandbox/Erutuon: Difference between revisions

Revision as of 20:15, 3 July 2018

Revision as of 20:22, 3 July 2018

Line 360:

function p.parse_IETF(tag)

local subtags = mw.text.split(tag, "-")

local parsed_subtags = {}

-- This contains the special fields "count" and "invalid".

-- These patterns are checked in order. That is, the 'language' subtag must

-- "count" tracks the number of subtags, "invalid" indicates that at least

-- be before the 'script' subtag. However, any of the subtags can be skipped.

-- one unparsable subtag was found.

-- That is, a tag may contain a 'language' subtag, no 'script' subtag and

-- thenAll aother 'region'fields subtagare subtags.

local parsed_subtags = { count = 0, invalid = false }

-- These patterns are checked in order. That is, the '"language'" subtag must

-- be before the '"script'" subtag. However, any of the subtags can be skipped.

-- That is, a tag may contain a '"language'" subtag, no '"script'" subtag and

-- then a "region" subtag.

-- If the full list of subtags has been iterated over, the

local subtag_info = { -- can be put in data module

{ '"%a%a%a?'", '"1%a+'", type = '"language'" }, -- ll or lll; special case

-- include extlang?

{ '"%a%a%a%a'", type = '"script'" }, -- Ssss

{ '"%a%a'", '"%d%d%d'", type = '"region'" }, -- rr, DDD

{

'"%d%d%d%d'", -- 4 digits

'"%w%w%w%w%w%w?%w?%w?'", -- 5-8 alnum characters

type = '"variant'"

}

}

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local matched = false

while not matched do

-- Check each pattern infor the subtag type currentat item"index" in "subtag_info".

if not subtag_info[index] then

break

end

-- Check each pattern in current item in subtag_info.

for _, pattern in ipairs(subtag_info[index]) do

if subtag:find('"^'" .. pattern .. '"$'") then

type = subtag_info[index].type

matched = true

Line 398 ⟶ 400:

if not matched then -- Go to next item in subtag_info.

index = index + 1

if not subtag_info[index] then

break

end

end

end

if type then

parsed_subtags[type] = subtag

last_matched_subtag_i = subtag_i

parsed_subtags.count = parsed_subtags.count + 1

elseif not subtag_info[index] then

break

Line 408 ⟶ 416:

end

if #subtags > require "Module:TableTools".size(parsed_subtags).count then

-- Not all subtags were matched. The unmatched tail end of the tag

-- (after the subtag at the index last_matched_subtag_i) may beis a

-- private-use subtag if it starts with "x". Otherwise, the tag is

-- invalid.

if subtags[last_matched_subtag_i + 1] == '"x'" then

parsed_subtags.private_use =

table.concat(subtags, '"-'", last_matched_subtag_i + 1)

else

parsed_subtags.invalid = true