Add Hammerspoon: banjiao

Author: rexzhang

hammerspoon/README.md

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+# Hammerspoon
+
+## 键盘输入全角符号转半角`modules.banjiao`
+
+> 在撰写MarkDown文档时,需要在中文输入法模式下键入大量的MarkDown控制符;但这些控制符需要使用半角
+
+- 通过修改`app_map``replace_map`这两个字典调整脚本的行为
+
+## Install
+
+- 复制 `modules` 目录到目录 `~/.hammerspoon` 下
+- 修改 `~/.hammerspoon/init.lua` 文件激活对应模块

hammerspoon/init.lua

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+require("modules.banjiao")

hammerspoon/modules/banjiao.lua

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+-- 键盘输入自动全角符号转半角符号
+
+-- 事件的API https://www.hammerspoon.org/docs/hs.eventtap.event.html
+-- 按键(delete)定义表 https://github.com/Hammerspoon/hammerspoon/blob/master/extensions/keycodes/keycodes.lua
+
+
+-- 预定义生效的应用清单
+local app_map = {
+    ["Code"] = true,
+    ["Drafts"] = true,
+    ["Joplin"] = true,
+    ["Sublime Text"] = true
+}
+-- 预定义替换映射表
+local replace_map = {
+    ["·"] = "`",
+    ["“"] = '"',
+    ["”"] = '"',
+    ["》"] = '>',
+    ["《"] = '<',
+}
+
+local function keyboardReplaceListener(event)
+    -- print("-----")
+    -- print(hs.inspect.inspect(event:asData()))
+    -- print(event:getButtonState(0))
+    -- print(hs.inspect.inspect(event:getCharacters()))
+    -- print(hs.inspect.inspect(event:getFlags()))
+    -- print(event:getKeyCode())
+    -- print(event:getProperty(hs.eventtap.event.properties.eventSourceUserData))
+    -- print(event:getRawEventData())
+    -- print(event:getTouchDetails())
+    -- print(event:getTouches())
+    -- print(event:getType())
+    -- print(event:getUnicodeString())
+
+    -- 只在指定的应用中生效
+    local app_name = hs.application.frontmostApplication():name()
+    -- print(app_name)
+    if not app_map[app_name] then
+        return
+    end
+
+    -- 安装替换表执行替换
+    local new_char = replace_map[event:getCharacters()]
+    if new_char then
+        local delete_event = require("hs.eventtap")
+        delete_event.keyStroke({}, "delete")
+        hs.eventtap.keyStrokes(new_char)
+    end
+end
+
+tap = hs.eventtap.new({ hs.eventtap.event.types.keyUp }, keyboardReplaceListener)
+tap:start()