chore：新的根节点

lua/key_binder.lua

@@ -0,0 +1,92 @@
+-- 正则按键绑定处理器
+-- 本处理器在 Rime 标准库的按键绑定处理器（key_binder）的基础上增加了用正则表达式判断当前输入的编码的功能
+-- 也即，在输入编码不同时，可以将按键绑定到不同的功能
+
+-- RIME_PROCESS_RESULTS 定义在 wanxiang.lua 中，这里需要引入才能使用
+local wanxiang = require("wanxiang")
+
+local this = {}
+
+---@class KeyBinderEnv: Env
+---@field redirecting boolean
+---@field bindings Binding[]
+
+---@class Binding
+---element
+---@field match string
+---@field accept KeyEvent
+---@field send_sequence KeySequence
+
+---解析配置文件中的按键绑定配置
+---@param value ConfigMap
+---@return Binding | nil
+local function parse(value)
+    local match = value:get_value("match")
+    local accept = value:get_value("accept")
+    local send_sequence = value:get_value("send_sequence")
+    if not match or not accept or not send_sequence then
+        return nil
+    end
+    local key_event = KeyEvent(accept:get_string())
+    local sequence = KeySequence(send_sequence:get_string())
+    local binding = { match = match:get_string(), accept = key_event, send_sequence = sequence }
+    return binding
+end
+
+---@param env KeyBinderEnv
+function this.init(env)
+    env.redirecting = false
+    ---@type Binding[]
+    env.bindings = {}
+    local bindings = env.engine.schema.config:get_list("key_binder/bindings")
+    if not bindings then
+        return
+    end
+    for i = 1, bindings.size do
+        local item = bindings:get_at(i - 1)
+        if not item then goto continue end
+        local value = item:get_map()
+        if not value then goto continue end
+        local binding = parse(value)
+        if not binding then goto continue end
+        table.insert(env.bindings, binding)
+        ::continue::
+    end
+end
+
+---@param key_event KeyEvent
+---@param env KeyBinderEnv
+---@return ProcessResult
+function this.func(key_event, env)
+    -- local input = rime.current(env.engine.context)
+    local input = env.engine.context.input
+    -- log.info("key_binder"..input)
+    if env.redirecting then
+        return wanxiang.RIME_PROCESS_RESULTS.kNoop
+    end
+
+
+    if not input then
+        return wanxiang.RIME_PROCESS_RESULTS.kNoop
+    end
+    if env.engine.context == nil or env.engine.context.composition == nil or env.engine.context.composition:back() == nil then
+        return wanxiang.RIME_PROCESS_RESULTS.kNoop
+    end
+    if not env.engine.context.composition:back():has_tag("abc") then
+        return wanxiang.RIME_PROCESS_RESULTS.kNoop
+    end
+    for _, binding in ipairs(env.bindings) do
+        -- 只有当按键和当前输入的模式都匹配的时候，才起作用
+        if key_event:eq(binding.accept) and rime_api.regex_match(input, binding.match) then
+            env.redirecting = true
+            for _, event in ipairs(binding.send_sequence:toKeyEvent()) do
+                env.engine:process_key(event)
+            end
+            env.redirecting = false
+            return wanxiang.RIME_PROCESS_RESULTS.kAccepted
+        end
+    end
+    return wanxiang.RIME_PROCESS_RESULTS.kNoop
+end
+
+return this