upstream/ipython Files · IPython/quarantine/ipy_which.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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      r""" %which magic command

      %which <cmd> => search PATH for files matching PATH. Also scans aliases

      """

      from IPython.core import ipapi

      ip = ipapi.get()

      import os,sys

      from fnmatch import fnmatch

      def which(fname):

          fullpath = filter(os.path.isdir,os.environ['PATH'].split(os.pathsep))

          if '.' not in fullpath:

              fullpath = ['.'] + fullpath

          fn = fname

          for p in fullpath:

              for f in os.listdir(p):

                  head, ext = os.path.splitext(f)

                  if f == fn or fnmatch(head, fn):

                      yield os.path.join(p,f)

          return

      def which_alias(fname):

          for al, tgt in ip.alias_table.items():

              if not (al == fname or fnmatch(al, fname)):

                  continue

              if callable(tgt):

                  print "Callable alias",tgt

                  d = tgt.__doc__

                  if d:

                      print "Docstring:\n",d

                      continue

              trg = tgt[1]

              trans = ip.expand_alias(trg)

              cmd = trans.split(None,1)[0]

              print al,"->",trans

              for realcmd in which(cmd):

                  print "  ==",realcmd

      def which_f(self, arg):

          r""" %which <cmd> => search PATH for files matching cmd. Also scans aliases.

          Traverses PATH and prints all files (not just executables!) that match the

          pattern on command line. Probably more useful in finding stuff

          interactively than 'which', which only prints the first matching item.

          Also discovers and expands aliases, so you'll see what will be executed

          when you call an alias.

          Example:

          [~]|62> %which d

          d -> ls -F --color=auto

            == c:\cygwin\bin\ls.exe

          c:\cygwin\bin\d.exe

          [~]|64> %which diff*

          diff3 -> diff3

            == c:\cygwin\bin\diff3.exe

          diff -> diff

            == c:\cygwin\bin\diff.exe

          c:\cygwin\bin\diff.exe

          c:\cygwin\bin\diff3.exe

          """

          which_alias(arg)

          for e in which(arg):

              print e

      ip.define_magic("which",which_f)

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				r""" %which magic command

				%which <cmd> => search PATH for files matching PATH. Also scans aliases

				"""

				from IPython.core import ipapi
				ip = ipapi.get()

				import os,sys
				from fnmatch import fnmatch
				def which(fname):
				fullpath = filter(os.path.isdir,os.environ['PATH'].split(os.pathsep))

				if '.' not in fullpath:
				fullpath = ['.'] + fullpath
				fn = fname
				for p in fullpath:
				for f in os.listdir(p):
				head, ext = os.path.splitext(f)
				if f == fn or fnmatch(head, fn):
				yield os.path.join(p,f)
				return

				def which_alias(fname):
				for al, tgt in ip.alias_table.items():
				if not (al == fname or fnmatch(al, fname)):
				continue
				if callable(tgt):
				print "Callable alias",tgt
				d = tgt.__doc__
				if d:
				print "Docstring:\n",d
				continue
				trg = tgt[1]

				trans = ip.expand_alias(trg)
				cmd = trans.split(None,1)[0]
				print al,"->",trans
				for realcmd in which(cmd):
				print " ==",realcmd

				def which_f(self, arg):
				r""" %which <cmd> => search PATH for files matching cmd. Also scans aliases.

				Traverses PATH and prints all files (not just executables!) that match the
				pattern on command line. Probably more useful in finding stuff
				interactively than 'which', which only prints the first matching item.

				Also discovers and expands aliases, so you'll see what will be executed
				when you call an alias.

				Example:

				[~]\|62> %which d
				d -> ls -F --color=auto
				== c:\cygwin\bin\ls.exe
				c:\cygwin\bin\d.exe

				[~]\|64> %which diff*
				diff3 -> diff3
				== c:\cygwin\bin\diff3.exe
				diff -> diff
				== c:\cygwin\bin\diff.exe
				c:\cygwin\bin\diff.exe
				c:\cygwin\bin\diff3.exe

				"""

				which_alias(arg)

				for e in which(arg):
				print e

				ip.define_magic("which",which_f)