AppleScript的on message received块报错，请求排查解决

错误原因 #

你遇到的错误是因为Messages应用的message received事件处理程序的参数语法不符合AppleScript规范。AppleScript中，应用事件的自定义参数需要通过given关键字声明命名参数，不能直接用from、for这类标识符作为参数前缀。另外代码里的False需要改为AppleScript标准的小写false。

修正后的完整代码 #

on write_to_file(this_data, target_file, append_data) -- (string, file path as string, boolean)
    try
        set the target_file to the target_file as text
        set the open_target_file to ¬
            open for access file target_file with write permission
        if append_data is false then ¬
            set eof of the open_target_file to 0
        write this_data to the open_target_file starting at eof
        close access the open_target_file
        return true
    on error
        try
            close access file target_file
        end try
        return false
    end try
end write_to_file

using terms from application "Messages"
    on message received theMessage given sender:theBuddy, chat:theChat
        write_to_file(theMessage, "message.txt", false)
        write_to_file(theBuddy, "person.txt", false)
        return
    end message received
end using terms from application "Messages"

关键修改点 #

• 将on message received theMessage from theBuddy for theChat改为on message received theMessage given sender:theBuddy, chat:theChat，符合AppleScript应用事件的参数声明规则
• 将False改为小写的false，匹配AppleScript的布尔值语法规范

内容的提问来源于stack exchange，提问作者A random person