expand_selection_to_delims.py

import sublime, sublime_plugin, os

class ExpandSelectionToDelimsCommand(sublime_plugin.TextCommand):
	def run(self, edit):
		begindelims = ["\"", "\'", "(", "<", "[", "{"]
		enddelims = ["\"", "\'", ")", ">", "]", "}"]
		view = self.view
		oldSelRegions = list(view.sel())
		for thisregion in oldSelRegions:
			thisRegionBegin = thisregion.begin() - 1
			thisRegionEnd = thisregion.end()
			if( (thisregion.begin() != thisRegionEnd) and (view.substr(thisRegionBegin) in begindelims) ):
				thisRegionBegin -= 1
			while ((view.substr(thisRegionBegin) not in begindelims) and (thisRegionBegin >= 0)):
				thisRegionBegin -= 1
			thisRegionBegin += 1

			if( (thisregion.begin() != thisRegionEnd) and (view.substr(thisRegionEnd) in enddelims) ):
				thisRegionEnd += 1
			while((view.substr(thisRegionEnd) not in enddelims) and (thisRegionEnd < view.size())):
				thisRegionEnd += 1

			view.sel().add(sublime.Region(thisRegionBegin, thisRegionEnd))