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import sublime, sublime_plugin

class AddFindCommand(sublime_plugin.TextCommand):
	def run(self, edit):
		self._orig_sel = list(self.view.sel())
		self.view.window().show_input_panel('find', '',
			self.on_done, self.on_change, self.on_cancel)

	def on_done(self, s):
		self.view.erase_regions('addfind')
		self.expand_sel(s)

	def on_change(self, s):
		if s != '':
		#print(repr(s))
			self.show_regions(s)

	def on_cancel(self):
		pass

	def show_regions(self, s):
		regs = []
		for r in self._orig_sel:
			new_begin = r.end()
			new_end = self.view.find(s, r.end(), sublime.LITERAL).end()
			if not r.empty():
				new_begin -= 1
			regs.append(sublime.Region(new_begin, new_end))

		for r in regs:
			self.view.add_regions('addfind', regs, 'comment', flags=sublime.DRAW_OUTLINED)

	def expand_sel(self, s):
		regs = []
		for r in self._orig_sel:
			new_begin = r.end()
			new_end = self.view.find(s, r.end(), sublime.LITERAL).end()
			if not r.empty():
				new_begin -= 1
			regs.append(sublime.Region(new_begin, new_end))

		for r in regs:
			self.view.sel().add(r)