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| Line 2: |
Line 2: |
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| local ustring = mw.ustring | | local ustring = mw.ustring |
| | local is_combining = require "Module:Unicode data".is_combining |
| local UTF8_char = '[\1-\127\194-\244][\128-\191]*' | | local UTF8_char = '[\1-\127\194-\244][\128-\191]*' |
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| local function memo_lookup(data_module_subpage, match_func, ...)
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| local dots = { ... }
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| local cache = {}
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| local singles, ranges
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|
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| return function (codepoint)
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| if not singles then
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| local data_module = loader[data_module_subpage]
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| singles, ranges = data_module.singles, data_module.ranges
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| end
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|
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| if singles[codepoint] then
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| return match_func(codepoint, singles[codepoint])
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| end
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|
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| local range = binary_range_search(codepoint, cache)
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| if range then
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| return match_func(codepoint, manual_unpack(range, 3))
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| end
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|
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| local range, index = binary_range_search(codepoint, ranges)
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| if range then
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| table.insert(cache, range)
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| table.sort(cache, compare_ranges)
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| return match_func(codepoint, manual_unpack(range, 3))
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| end
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|
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| if ranges[index] then
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| local dots_range
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| if codepoint > ranges[index][2] then
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| dots_range = {
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| ranges[index][2] + 1,
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| ranges[index + 1] and ranges[index + 1][1] - 1 or 0x10FFFF,
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| unpack(dots)
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| }
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| else -- codepoint < range[index][1]
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| dots_range = {
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| ranges[index - 1] and ranges[index - 1][2] + 1 or 0,
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| ranges[index][1] - 1,
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| unpack(dots)
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| }
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| end
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| table.sort(cache, compare_ranges)
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| end
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|
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| return match_func(codepoint, unpack(dots))
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| end
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| end
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|
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| local is_combining= memo_lookup(
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| "combining",
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| function (codepoint, combining_class)
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| return combining_class and combining_class ~= 0 or false
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| end,
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| 0)
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| local sorted_pairs = require('Module:table').sortedPairs | | local sorted_pairs = require('Module:table').sortedPairs |