[TxMt] Re: Suggestions for implementing incremental-search like functionality

Allan Odgaard mailinglist at textmate.org
Fri Mar 14 00:59:29 UTC 2014

On 13 Mar 2014, at 19:47, Chriztian Steinmeier wrote:

> […] An alternative way would be to just open a $DIALOG, asking for 
> the XPath expression and then do the processing - but I can't see a 
> $DIALOG command that lets me do that (read input)...

Using the ruby UI wrapper (for DIALOG), such command could take the 
following form:

	require "#{ENV['TM_SUPPORT_PATH']}/lib/exit_codes"
	require "#{ENV['TM_SUPPORT_PATH']}/lib/ui"

	query = TextMate::UI.request_string(:prompt => "XPath Query:")
	TextMate.exit_discard if query.to_s.empty?

	# output HTML based on stdin and query…

You can mix this with the suggestion by Hans-Jörg, i.e. let the 
generated HTML include a text field prepopulated with the query string, 
allowing the user to change the query.

If so, you may want to allow an initial empty query string, for that, 
change ‘query.to_s.empty?’ → ‘query.nil?’ in the above. This 
will still allow the user to abort the command (and never see the HTML 
output window) via the Cancel button (or ⌘,) but if they just press 
return, the window will appear.
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