在Mac中用快捷鍵快速插入日期時間

在Windows中有AutoHotkey這個好東東幫我快速插入日期時間，輸入[mm而後敲空格就能夠了。在Mac中就沒有這麼好的事了，雖然可以實現，可是沒有AutoHotkey方便。仍是要藉助於AppleScript，可是並不能適用於Mac中任何文本輸入的地方，好比DayOne的彈出窗口就不能用，另外還有一個限制：只能對選中的文字進行操做。

我使用的是這個文章裏面的方案：

http://www.sixhat.net/applescript-insert-date-and-time-into-your-documents.html 

代碼是：

-- Insert Date and Time into your documents
-- @2012 David Rodrigues
set date_ to ((current date) as string)
set the clipboard to the date_
tell application "System Events"
    set frontmostApplication to name of the first process whose frontmost is true
end tell
tell application frontmostApplication
    activate
    tell application "System Events"
        keystroke "v" using {command down}
    end tell
end tell

注意它會改變粘貼板的內容。我爲它定義了一個快捷鍵：Cmd+Alt+Shift+F。使用以前，能夠先敲一個字母，而後選中字母，按這個快捷鍵，就會顯示出來日期時間了。好比如今的時間是：  2014-12-22 19:39:03 +0800。

下面的英文描述是下面參考第一個連接文章的內容，有時間再翻譯。

Below is a very simple AppleScript that inserts the date, time and timezone in the format that Jekyll requires.

do shell script "date +%Y-%m-%d\\ %H:%M:%S\\ %z"

To make inserting it simple, it’s possible to assign a keyboard shortcut, by turning it into a Service in Automator.

1. Open Automator.app

2. Create a new Service

3. Set it to receive selected text in any application

4. Check the ‘Output replaces selected text’ tick-box

5. Insert the ‘Run AppleScript’ action

6. Copy and paste the above AppleScript

7. Press run to make sure it works

8. Save the .workflow file to ~/Library/Services

9. Open the Keyboard > Keyboard Shortcuts system preference pane, select Services in the left column, then find the Service you just created.

10. Assign a keyboard shortcut. I use Command + Option + d

There is one pitfall: it only works on selected text.

When saving a post for Jekyll, the file-name also requires a date—but not a time. For this, you can follow the same process as above with a modified AppleScript:

do shell script "date +%Y-%m-%d"

For this, I use the keyboard shortcut Command + Option + Shift + d.

I would love it if the Service created the entire file name. So if the post title ‘This is a Post Title’ was on the clipboard, it would create a file called 2012-11-10-this-is-a-post-title.md; replacing spaces with hyphens and converting it to lowercase. However, that’s well beyond my very limited AppleScript knowledge.

參考：

http://andytaylor.me/2012/11/10/creating-an-osx-service-to-insert-the-current-date-and-time/

http://www.question-defense.com/2013/01/28/title-osx-keyboard-shortcut-for-insert-date-and-time-insert-datetime-in-textmate