upstream/ipython Files · IPython/quarantine/ext_rescapture.py

Multiple improvements to tab completion....

Multiple improvements to tab completion. I refactored the API quite a bit, to retain readline compatibility but make it more independent of readline. There's still more to do in cleaning up our init_readline() method, but now the completer objects have separate rlcomplete() and complete() methods. The former uses the quirky readline API with a state flag, while the latter is stateless, takes only text information, and is more suitable for GUIs and other frontends to call programatically. Made other minor fixes to ensure the test suite passes in full. While all this code is a bit messy, we're getting in the direction of the APIs we need in the long run.

Brian Granger - - Load All Authors

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      # -*- coding: utf-8 -*-

      """ IPython extension: new prefilters for output grabbing 

      Provides 

      var = %magic blah blah

      var = !ls

      """

      from IPython.core import ipapi

      from IPython.core.error import TryNext

      from IPython.utils.text import make_quoted_expr

      from IPython.utils.genutils import *

      ip = ipapi.get()

      import re

      def hnd_magic(line,mo):

          """ Handle a = %mymagic blah blah """

          var = mo.group('varname')

          cmd = mo.group('cmd')

          expr = make_quoted_expr(cmd)

          return itpl('$var = get_ipython().magic($expr)')

      def hnd_syscmd(line,mo):

          """ Handle a = !ls """

          var = mo.group('varname')

          cmd = mo.group('cmd')

          expr = make_quoted_expr(itpl("sc -l =$cmd"))

          return itpl('$var = get_ipython().magic($expr)')

      def install_re_handler(pat, hnd):

          ip.meta.re_prefilters.append((re.compile(pat), hnd))

      def init_handlers():

          ip.meta.re_prefilters = []

          install_re_handler('(?P<varname>[\w\.]+)\s*=\s*%(?P<cmd>.*)',

                             hnd_magic

                             )

          install_re_handler('(?P<varname>[\w\.]+)\s*=\s*!(?P<cmd>.*)',

                             hnd_syscmd

                             )

      init_handlers()

      def regex_prefilter_f(self,line):

          for pat, handler in ip.meta.re_prefilters:

              mo = pat.match(line)

              if mo:

                  return handler(line,mo)

          raise TryNext

      ip.set_hook('input_prefilter', regex_prefilter_f)

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				# -- coding: utf-8 --
				""" IPython extension: new prefilters for output grabbing

				Provides

				var = %magic blah blah

				var = !ls
				"""

				from IPython.core import ipapi
				from IPython.core.error import TryNext
				from IPython.utils.text import make_quoted_expr
				from IPython.utils.genutils import *

				ip = ipapi.get()

				import re

				def hnd_magic(line,mo):
				""" Handle a = %mymagic blah blah """
				var = mo.group('varname')
				cmd = mo.group('cmd')
				expr = make_quoted_expr(cmd)
				return itpl('$var = get_ipython().magic($expr)')

				def hnd_syscmd(line,mo):
				""" Handle a = !ls """
				var = mo.group('varname')
				cmd = mo.group('cmd')
				expr = make_quoted_expr(itpl("sc -l =$cmd"))
				return itpl('$var = get_ipython().magic($expr)')

				def install_re_handler(pat, hnd):
				ip.meta.re_prefilters.append((re.compile(pat), hnd))

				def init_handlers():

				ip.meta.re_prefilters = []

				install_re_handler('(?P<varname>[\w\.]+)\s=\s%(?P<cmd>.*)',
				hnd_magic
				)

				install_re_handler('(?P<varname>[\w\.]+)\s=\s!(?P<cmd>.*)',
				hnd_syscmd
				)

				init_handlers()

				def regex_prefilter_f(self,line):
				for pat, handler in ip.meta.re_prefilters:
				mo = pat.match(line)
				if mo:
				return handler(line,mo)

				raise TryNext

				ip.set_hook('input_prefilter', regex_prefilter_f)