# HG changeset patch
# User catherine@dellzilla
# Date 1264779160 18000
# Node ID 1941e54cb7764bd2ce996ee4ee7f24296296b0a9
# Parent  4e9011c3f732850246d0fdac500653fb2e453b01
added bash-style SELECT

diff -r 4e9011c3f732 -r 1941e54cb776 cmd2.py
--- a/cmd2.py	Thu Jan 28 08:52:04 2010 -0500
+++ b/cmd2.py	Fri Jan 29 10:32:40 2010 -0500
@@ -38,7 +38,11 @@
 from code import InteractiveConsole, InteractiveInterpreter, softspace
 from optparse import make_option
 
-import pyparsing
+if sys.version_info[0] > 2:
+    import pyparsing_py3 as pyparsing
+else:
+    import pyparsing
+    
 __version__ = '0.5.6'
 
 class OptionParser(optparse.OptionParser):
@@ -830,6 +834,23 @@
     do_exit = do_quit
     do_q = do_quit
     
+    def select(self, options, prompt='Your choice? '):
+        '''Presents a numbered menu to the user.  Modelled after
+           the bash shell's SELECT.  Returns the item chosen.'''
+        if isinstance(options, basestring):
+            options = options.split()
+        for (idx, opt) in enumerate(options):
+            self.poutput('  %2d. %s\n' % (idx+1, opt))
+        while True:
+            response = raw_input(prompt)
+            try:
+                response = int(response)
+                result = options[response - 1]
+                break
+            except ValueError:
+                pass # loop and ask again
+        return result
+    
     @options([make_option('-l', '--long', action="store_true",
                  help="describe function of parameter")])    
     def do_show(self, arg, opts):
diff -r 4e9011c3f732 -r 1941e54cb776 example/example.py
--- a/example/example.py	Thu Jan 28 08:52:04 2010 -0500
+++ b/example/example.py	Fri Jan 29 10:32:40 2010 -0500
@@ -26,6 +26,10 @@
             self.stdout.write('\n')
             # self.stdout.write is better than "print", because Cmd can be
             # initialized with a non-standard output destination
+    def do_sel(self, arg):
+        opts = arg.split()
+        result = self.select(opts)
+        self.poutput('yay for %s' % result)
 
     do_say = do_speak     # now "say" is a synonym for "speak"
     do_orate = do_speak   # another synonym, but this one takes multi-line input