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

Fix paste/cpaste bug and refactor/cleanup that code a lot....

Fix paste/cpaste bug and refactor/cleanup that code a lot. In fixing a pasting bug (mishandling of whitespace when input had prompts) it became clear the pasting code hadn't been updated when the new prefiltering machinery was added. Furthermore, the pasting magics are only for the terminal, but the code was in the base classes. This refactors and simplifies the pasting code, moving it to the terminal shell only, and removing unnecessary methods from the main class (using small utility functions instead). The tests were simplified because the previous regexp supported some odd edge cases that are not valid in the normal prefiltering code. We want to have a single location and set of rules for input prefiltering, so I changed some of the test cases to be consistent with what prefilter allows.

Bernardo B. Marques - - Load All Authors

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      """ IPython extension: Render templates from variables and paste to clipbard """

      from IPython.core import ipapi

      ip = ipapi.get()

      from string import Template

      import sys,os

      from IPython.external.Itpl import itplns

      def toclip_w32(s):

          """ Places contents of s to clipboard

          Needs pyvin32 to work:

          http://sourceforge.net/projects/pywin32/

          """

          import win32clipboard as cl

          import win32con

          cl.OpenClipboard()

          cl.EmptyClipboard()

          cl.SetClipboardText( s.replace('\n','\r\n' ))

          cl.CloseClipboard()

      try:

          import win32clipboard

          toclip = toclip_w32

      except ImportError:

          def toclip(s): pass

      def render(tmpl):

          """ Render a template (Itpl format) from ipython variables

          Example:

          $ import ipy_render

          $ my_name = 'Bob'  # %store this for convenience

          $ t_submission_form = "Submission report, author: $my_name"  # %store also

          $ render t_submission_form

          => returns "Submission report, author: Bob" and copies to clipboard on win32

          # if template exist as a file, read it. Note: ;f hei vaan => f("hei vaan")

          $ ;render c:/templates/greeting.txt

          Template examples (Ka-Ping Yee's Itpl library):

          Here is a $string.

          Here is a $module.member.

          Here is an $object.member.

          Here is a $functioncall(with, arguments).

          Here is an ${arbitrary + expression}.

          Here is an $array[3] member.

          Here is a $dictionary['member'].

          """

          if os.path.isfile(tmpl):

              tmpl = open(tmpl).read()

          res = itplns(tmpl, ip.user_ns)

          toclip(res)

          return res

      ip.push('render')

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				""" IPython extension: Render templates from variables and paste to clipbard """

				from IPython.core import ipapi

				ip = ipapi.get()

				from string import Template
				import sys,os

				from IPython.external.Itpl import itplns

				def toclip_w32(s):
				""" Places contents of s to clipboard

				Needs pyvin32 to work:
				http://sourceforge.net/projects/pywin32/
				"""
				import win32clipboard as cl
				import win32con
				cl.OpenClipboard()
				cl.EmptyClipboard()
				cl.SetClipboardText( s.replace('\n','\r\n' ))
				cl.CloseClipboard()

				try:
				import win32clipboard
				toclip = toclip_w32
				except ImportError:
				def toclip(s): pass


				def render(tmpl):
				""" Render a template (Itpl format) from ipython variables

				Example:

				$ import ipy_render
				$ my_name = 'Bob' # %store this for convenience
				$ t_submission_form = "Submission report, author: $my_name" # %store also
				$ render t_submission_form

				=> returns "Submission report, author: Bob" and copies to clipboard on win32

				# if template exist as a file, read it. Note: ;f hei vaan => f("hei vaan")
				$ ;render c:/templates/greeting.txt

				Template examples (Ka-Ping Yee's Itpl library):

				Here is a $string.
				Here is a $module.member.
				Here is an $object.member.
				Here is a $functioncall(with, arguments).
				Here is an ${arbitrary + expression}.
				Here is an $array[3] member.
				Here is a $dictionary['member'].
				"""

				if os.path.isfile(tmpl):
				tmpl = open(tmpl).read()

				res = itplns(tmpl, ip.user_ns)
				toclip(res)
				return res

				ip.push('render')