2024-01-29 11:51:45 +01:00
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-- Copyright (C) Mirtle <mirtle.cn@outlook.com>
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2024-02-04 16:27:50 +01:00
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-- [CC BY 3.0 DEED](https://creativecommons.org/licenses/by/3.0/deed)
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2024-01-29 11:51:45 +01:00
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2024-02-04 16:27:50 +01:00
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-- 使用说明:<https://github.com/mirtlecn/rime-radical-pinyin/blob/master/search.lua.md>
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-- 感谢 [AuxFilter](https://github.com/HowcanoeWang/rime-lua-aux-code/blob/main/lua/aux_code.lua) 提供参考
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2024-01-29 11:51:45 +01:00
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local function alt_lua_punc(s)
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if s then
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return s:gsub("([%.%+%-%*%?%[%]%^%$%(%)%%])", "%%%1")
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else
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return ''
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end
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end
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local f = {}
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-- 逻辑
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-- 当在 engine 出直接指定了 namespace 则使用该 namespace 进行 schema 匹配
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-- 当在 search_in_cand 节点下指定了 schema 和 db 则进行相应匹配
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-- 当该节点下 schema 为 0 或者 false,或者不存在时,不进行相应匹配
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function f.init(env)
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local config = env.engine.schema.config
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local ns = 'search'
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-- f.mem_main = Memory(env.engine, env.engine.schema)
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-- local rules = config:get_list('preedit_rules')
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-- if rules then
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-- f.projection = Projection()
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-- f.projection:load(rules)
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-- end
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f.schema = config:get_string(ns .. '/schema')
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if f.schema == 'false' or f.schema == '0' then
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goto checkdb
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end
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if not env.name_space:find('^%*') then
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f.schema = env.name_space
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end
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if f.schema then
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f.mem = Memory(env.engine, Schema(f.schema))
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end
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f.schema_search_limit = config:get_int(ns .. "/schema_search_limit") or 1000
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::checkdb::
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f.db = config:get_list(ns .. '/db')
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f.if_schema_lookup = false
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f.if_reverse_lookup = false
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if f.schema and f.mem then
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f.if_schema_lookup = true
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-- log.error('if_schema_lookup: ' .. 'true')
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end
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if f.db then
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f.wildcard = config:get_string(ns .. "/wildcard") or "'"
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f.if_reverse_lookup = true
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-- log.error('if_reverse_lookup: ' .. 'true')
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end
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f.sort = config:get_bool(ns .. "/show_other_cands")
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-- 反引号作为查找的引导符号,需要加入 speller 的字母表当中
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f.search_key = config:get_string("key_binder/search") or config:get_string(ns .. "/key") or '`'
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-- 处理一下输入码,如果还有没有上屏的词,保留辅助码,否则,清除上屏码
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f.search_key_string = alt_lua_punc(f.search_key)
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-- 如果不使用任何反查手段,则不接管选词逻辑
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if not f.if_reverse_lookup and not f.if_schema_lookup then
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return
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end
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-- 接管选词逻辑,是词组则始终保留引导码,否则直接上屏
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env.notifier = env.engine.context.select_notifier:connect(function(ctx)
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if not ctx.input:find("^[a-z;]+" .. f.search_key_string) then
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return
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end
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local preedit = ctx:get_preedit()
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local no_search_string = ctx.input:match("^(.-)" .. f.search_key_string)
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-- log.warning('[no_search_string]: '..no_search_string)
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local edit = preedit.text:match('^(.-)' .. f.search_key_string)
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-- log.warning('[edit]: ' .. edit)
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ctx.input = no_search_string
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if edit and edit:match('[a-z;]') then
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ctx.input = ctx.input .. f.search_key
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else
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ctx:commit()
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-- local t = f.entry()
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-- log.warning(edit .. '|' .. no_search_string)
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-- 手动推入历史记录
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-- ctx.commit_history:push("user_phrase", edit)
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-- 手动写入用户词库
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-- f.update_dict_entry(edit, no_search_string)
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end
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end)
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end
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-- function f.update_dict_entry(s, code)
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-- local codeLen = #code
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-- if s == '' or (#code % 2 ~= 0) then
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-- log.warning('Ignored!' .. s)
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-- return 0
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-- end
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-- local e = DictEntry()
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-- e.text = s
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-- local custom_code = {}
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-- for i = 1, #code, 2 do
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-- local s = code:sub(i, i + 1)
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-- local c = f.projection:apply(s, true)
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-- table.insert(custom_code, c)
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-- end
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-- e.custom_code = table.concat(custom_code, " ") .. ' '
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-- log.info("[search.lua]: " .. e.text .. ' ' .. e.custom_code)
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-- f.mem_main:update_userdict(e, 1, "")
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-- end
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-- 查询反查词典当中的匹配项,并且返回字表
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function f.dict_init(search_string)
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local dict_table = {}
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if f.mem:dict_lookup(search_string, true, f.schema_search_limit) then
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for entry in f.mem:iter_dict() do
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-- log.error('text: ' .. entry.text .. ' code: ' .. entry.comment)
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-- table.insert(dict_table, entry.text)
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dict_table[entry.text] = true
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-- dict_table[entry.text] = entry.comment
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end
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end
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return dict_table
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end
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-- 通过 schema 的方式查询(以码查字,然后轮询匹配,非常慢,但能够匹配到算法转换过的码)
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function f.dict_match(table, text)
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-- for i, dict in ipairs(table) do
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-- if text == dict then
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-- return true
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-- end
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-- end
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if table[text] == true then
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return true
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end
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return false
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end
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-- 通过 reverse db 查询(以字查码,然后比对辅码是否相同,比校快,但只能匹配未经算法转换的码)
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function f.reverse_lookup(text, s)
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local list = f.db
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s = s:gsub(f.wildcard, '.*')
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-- log.error(s)
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for i = 0, list.size - 1 do
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local code = ReverseLookup(list:get_value_at(i).value):lookup(text)
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if code:find(' ' .. s) or code:find('^' .. s) then
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return true
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end
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end
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return false
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end
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function f.func(input, env)
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local input_code = env.engine.context.input
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-- 当且仅当当输入码中含有辅码引导符号,并有有辅码存在,进入匹配逻辑
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-- 当无任何查询方式存在,直接上屏
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if (input_code:find("^[a-z;]+" .. f.search_key_string .. '.+$')) and (f.if_reverse_lookup or f.if_schema_lookup) then
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f.search_string = input_code:match("^.*" .. f.search_key_string .. "(.*)$")
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else
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for cand in input:iter() do
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yield(cand)
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end
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return
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end
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-- 查字时是否单字优先
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2024-02-04 16:27:50 +01:00
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local if_single_char_first = env.engine.context:get_option("search_single_char")
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2024-01-29 11:51:45 +01:00
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local dict_table
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if f.if_schema_lookup then
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dict_table = f.dict_init(f.search_string)
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end
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local other_cand = {}
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local long_word_cands = {}
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for cand in input:iter() do
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local type = cand.type -- 类型
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local text = cand.text -- 候选文字
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local comment = cand.comment
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-- if utf8.len(text) > 1 and if_single_char_first then
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-- table.insert(other_cand_last, cand)
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-- goto skip
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-- end
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-- 处理经过 simplify 转化过的候选,使之能够正确匹配
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if cand:get_dynamic_type() == "Shadow" then
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local originalCand = cand:get_genuine()
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cand = ShadowCandidate(originalCand, originalCand.type, cand.text, cand.comment)
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type = cand.type
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text = cand.text
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end
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-- 只有 script_translator 下的用户词和词才去匹配
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if (type == 'phrase' or type == 'user_phrase') then
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-- 当候选多于一个汉字,则取第一个匹配
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if utf8.len(text) > 1 then
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text = text:sub(1, utf8.offset(text, 2) - 1)
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end
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else
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table.insert(other_cand, cand)
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goto skip
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end
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-- 匹配逻辑
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if (f.if_reverse_lookup and f.reverse_lookup(text, f.search_string)) or
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(f.if_schema_lookup and f.dict_match(dict_table, text)) then
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if if_single_char_first and utf8.len(cand.text) > 1 then
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table.insert(long_word_cands, cand)
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else
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yield(cand)
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end
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else
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table.insert(other_cand, cand)
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end
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::skip::
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end
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-- 上屏其余的候选
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for i, cand in ipairs(long_word_cands) do
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yield(cand)
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end
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if f.sort then
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for i, cand in ipairs(other_cand) do
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yield(cand)
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end
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end
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end
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function f.fini(env)
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if not f.if_reverse_lookup and not f.if_schema_lookup then
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return
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end
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env.notifier:disconnect()
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-- env.commit_notifier:disconnect()
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end
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return f
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