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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| -- 将要被返回的過濾器對象 | ||
| local embeded_cands_filter = {} | ||
|
|
||
| --[[ | ||
| # xxx.schema.yaml | ||
| switches: | ||
| - name: embeded_cands | ||
| states: [ 普通, 嵌入 ] | ||
| reset: 1 | ||
| engine: | ||
| filters: | ||
| - lua_filter@*smyh.embeded_cands | ||
| key_binder: | ||
| bindings: | ||
| - { when: always, accept: "Control+Shift+E", toggle: embeded_cands } | ||
| --]] | ||
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||
| -- 讀取 schema.yaml 開關設置: | ||
| local option_name = "embeded_cands" | ||
| local embeded_cands = nil | ||
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| function embeded_cands_filter.init(env) | ||
| local handler = function(ctx, name) | ||
| -- 通知回調, 當改變選項值時更新暫存的值 | ||
| if name == option_name then | ||
| embeded_cands = ctx:get_option(name) | ||
| if embeded_cands == nil then | ||
| -- 當選項不存在時默認爲啟用狀態 | ||
| embeded_cands = true | ||
| end | ||
| end | ||
| end | ||
| -- 初始化爲選項實際值, 如果設置了 reset, 則會再次觸發 handler | ||
| handler(env.engine.context, option_name) | ||
| -- 注册通知回調 | ||
| env.engine.context.option_update_notifier:connect(handler) | ||
| end | ||
|
|
||
| -- 過濾器 | ||
| function embeded_cands_filter.func(input, env) | ||
| if not embeded_cands then | ||
| for cand in input:iter() do | ||
| yield(cand) | ||
| end | ||
| return | ||
| end | ||
|
|
||
| -- 要顯示的候選數量 | ||
| local page_size = env.engine.schema.page_size | ||
| -- 暫存當前頁候選, 然后批次送出 | ||
| local page_cands = {} | ||
| -- 暫存索引, 首選和預編輯文本 | ||
| local index, first_cand, preedit = 0, nil, "" | ||
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||
| -- 迭代器 | ||
| local iter, obj = input:iter() | ||
| -- 迭代由翻譯器輸入的候選列表 | ||
| local next = iter(obj) | ||
| while next do | ||
| -- 頁索引自增, 滿足 1 <= index <= page_size | ||
| index = index + 1 | ||
| -- 當前遍歷候選項 | ||
| local cand = next | ||
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||
| if index == 1 then | ||
| -- 把首選捉出來 | ||
| first_cand = cand:get_genuine() | ||
| end | ||
|
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||
| -- 修改首選的預编輯文本, 這会作爲内嵌編碼顯示到輸入處 | ||
| if index == 1 then | ||
| -- 首選和編碼 | ||
| -- 這裏的if块可以直接改成一個 preedit = preedit..cand.text | ||
| if string.len(cand.text) <= string.len("四個漢字") then | ||
| -- 四字以内, "漢字code" | ||
| preedit = cand.text..first_cand.preedit | ||
| else | ||
| -- 四字以上, "code四字以上詞" | ||
| preedit = first_cand.preedit..cand.text | ||
| end | ||
| elseif index <= page_size then | ||
| -- 當前頁余下候選項, 形如 "2.漢字" | ||
| -- 組合顯示爲 "首選code 2.次選 3.三選 ..." | ||
| preedit = preedit.." "..tostring(index).."."..cand.text | ||
| end | ||
|
|
||
| -- 如果候選有提示且不以 "~" 開頭(补全提示), 識别爲反查提示 | ||
| if string.len(cand.comment) ~= 0 and string.sub(cand.comment, 1, 1) ~= "~" then | ||
| if index == 1 then | ||
| -- 首選後額外增加一空格, 以将輸入編碼與反查分隔 | ||
| preedit = preedit.." " | ||
| end | ||
| preedit = preedit..cand.comment | ||
| end | ||
| -- 存入首選 | ||
| table.insert(page_cands, cand) | ||
|
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||
| -- 遍歷完一頁候選後, 刷新預編輯文本 | ||
| if index == page_size then | ||
| first_cand.preedit = preedit | ||
| -- 将暫存的一頁候選批次送出 | ||
| for _, c in ipairs(page_cands) do | ||
| yield(c) | ||
| end | ||
| -- 清空暫存 | ||
| first_cand, preedit = nil, "" | ||
| page_cands = {} | ||
| end | ||
|
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||
| -- 當前候選處理完畢, 查詢下一個 | ||
| next = iter(obj) | ||
|
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| -- 如果當前暫存候選不足page_size但没有更多候選, 則需要刷新預編輯並送出 | ||
| if not next and index < page_size then | ||
| first_cand.preedit = preedit | ||
| -- 将暫存的前三候選批次送出 | ||
| for _, c in ipairs(page_cands) do | ||
| yield(c) | ||
| end | ||
| -- 清空暫存 | ||
| first_cand, preedit = nil, "" | ||
| page_cands = {} | ||
| end | ||
|
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| -- 下一頁, index歸零 | ||
| index = index % page_size | ||
| end | ||
| end | ||
|
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| function embeded_cands_filter.fini(env) | ||
| end | ||
|
|
||
| return embeded_cands_filter |
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