Found this code in my personal site, made it into a plugin
This plugin will override all excerpt functionality currently in a theme and allow the site admin to change the excerpt settings directly from the admin side of the site, without knowing code.
The admin page allows the administrator to manage excerpt options:
- Excerpt Length
- Read More Text
- Text Before Read More
- Text After Read More
- Link Read More text to the post
We also add a menu item to the Settings Menu, to make it easy to find and use.
Wherever you use excerpts in your theme, the plugin will build the excerpt just as you set it up. The length and Read More functionality will all be there.
This plugin will completely override excerpt settings that your theme or other plugin have placed into your site.
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