Add jobctrl.py extension

IPython/Extensions/jobctrl.py

@@ -0,0 +1,44 b''
+""" Preliminary "job control" extensions for IPython 
+
+requires python 2.4 (or separate 'subprocess' module
+
+At the moment this is in a very "unhelpful" form, will be extended in the future.
+
+Usage:
+
+[ipython]|2> import jobctrl
+[ipython]|3> &ls
+         <3> <jobctrl.IpyPopen object at 0x00D87FD0>
+[ipython]|4> _3.go
+-----------> _3.go()
+ChangeLog
+IPython
+MANIFEST.in
+README
+README_Windows.txt
+
+...                     
+"""                     
+
+from subprocess import Popen,PIPE
+
+from IPython import genutils
+
+class IpyPopen(Popen):
+    def go(self):
+        print self.communicate()[0]
+
+def job(job):
+    #p = Popen(r"q:\opt\vlc\vlc.exe http://di.fm/mp3/djmixes.pls")
+    p = IpyPopen(job, stdout=PIPE)
+    p.line = job
+    return p
+
+def jobctrl_prefilter_f(self,line):    
+    if line.startswith('&'):
+        return 'jobctrl.job(%s)' % genutils.make_quoted_expr(line[1:])
+
+    raise IPython.ipapi.TryNext
+
+import IPython.ipapi
+IPython.ipapi.get().set_hook('input_prefilter', jobctrl_prefilter_f)     

doc/ChangeLog

@@ -1,3 +1,9 b''
[phone]  Ville Vainio  <[e-mail]>
+
+	* jobctrl.py: Add new "jobctrl" extension for spawning background
+	processes with "&find /". 'import jobctrl' to try it out. Requires
+	'subprocess' module, standard in python 2.4+.
+
 2006-10-09  Fernando Perez  <[e-mail]>
 
 	* IPython/Magic.py (Magic.parse_options): add a new posix option