TextMate Bundle to integrate with Dash
The Open in Dash command will search for the current selected text or word.
It is bound to ⌃⌥H for all source files.
You can filter the search results by setting TM_DASH_PREFIX to the appropriate prefix.
For example, in your ~.tm_properties you could have:
[source.python]
TM_DASH_PREFIX = 'python:'
[source.ruby]
TM_DASH_PREFIX = 'ruby:'