Module:Hangul

local p = {}

local data = require 'Module:Hangul/data'

From [[wikt:Module:ko-hangul] -- Given the "syllable index" of a precomposed Hangul syllable (see -- above), returns "indices" representing the three constituent jamo -- ("lead", i.e. initial consonant; "vowel"; and "tail", i.e. final -- consonant, except that zero denotes the absence of a final consonant). local function syllableIndex2JamoIndices(syllableIndex)   local lIndex = math.floor(syllableIndex / 588)    local vIndex = math.floor((syllableIndex % 588) / 28)    local tIndex = syllableIndex % 28    return lIndex, vIndex, tIndex end

local tocodepoint = mw.ustring.codepoint

local function indexof(arr, val) for i, v in ipairs(arr) do		if v == val then return i		end end return -1 end

local function get_name(char) local codepoint = tocodepoint(char) -- Hangul Compatibility Jamo block if 0x3130 <= codepoint and codepoint <= 0x318F then return ('U+%X: HANGUL LETTER %s'):format(codepoint, data.names[codepoint - 0x3130]) -- Hangul Syllables block -- From wikt:Module:Unicode data. -- Cheaper to derive names from decomposed form of syllable? elseif 0xAC00 <= codepoint and codepoint <= 0xD7A3 then local li, vi, ti = syllableIndex2JamoIndices(codepoint - 0xAC00) return ("U+%X: HANGUL SYLLABLE %s%s%s"):format(			codepoint, data.leads[li], data.vowels[vi], data.trails[ti]) else error(('No name for U+%X found.'):format(codepoint)) end end

local function get_anchor(index) return string.char(('a'):byte + index - 1):rep(2) end

local function diag_split_header(column_text, row_text) return mw.getCurrentFrame:expandTemplate{ title = 'diagonal_split_header', args = { column_text, row_text }, } end

local function syllables_by_initial(initial) local codepoint = mw.ustring.codepoint(initial) if not (0x1100 <= codepoint and codepoint <= 0x1112) then error('Incorrect initial ' .. initial .. '. Should be between U+1100 and U+1112.') end local initial_index = indexof(data.initials, initial) local output = {} local i = 0 local function push(text) i = i + 1 output[i] = text end push( ( class="wikitable collapsible collapsed nowrap" ! %s):format( get_anchor(initial_index), data.independent_initials[initial_index], diag_split_header('Medial', 'Final'))) -- initial jamo
 * + id="%s" | Initial %s

for _, final in ipairs(data.independent_finals) do push(('! title="%s" | %s ')			:format(final ~=  and get_name(final) or , final)) end for i, medial in ipairs(data.medials) do		push('|- lang="ko"') local independent_medial = data.independent_medials[i] push(('! scope="row" title="%s" | %s')			:format(get_name(independent_medial), independent_medial)) for _, final in ipairs(data.finals) do			push(('| %s%s%s'):format(initial, medial, final)) end end push('|}') output = table.concat(output, '\n') output = mw.ustring.toNFC(output) output = mw.ustring.gsub( -- Add names of syllable codepoints.		output,		'[가-힣]', -- Hangul Syllables block (U+AC00-D7AF)		function (syllable)			return ('title="%s" | %s'):format(get_name(syllable), syllable)		end) -- Check for consecutive span tags. -- output:gsub(']+>[^<]* ]+>[^<]* ', mw.log) return output end

function p.syllables_by_initial(frame) local initial = frame.args[1] or 'ᄀ' return syllables_by_initial(initial) end

function p.all_syllables(frame) local tables = {} for i, initial in ipairs(data.initials) do		tables[i] = syllables_by_initial(initial) end return table.concat(tables, '\n') end

function p.TOC(frame) local output = {} for i, initial in ipairs(data.independent_initials) do		table.insert(output, ('| %s'):format(get_anchor(i), initial)) end table.insert(output, 1, '{| class="wikitable" lang="ko" style="width: 96px; height: 10px;"') table.insert(output, '|}') return table.concat(output, '\n') end

return p