1fed7edaa7
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33055 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
127 lines
4.7 KiB
Python
127 lines
4.7 KiB
Python
"""Interpreter executes Python commands."""
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__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
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__cvsid__ = "$Id$"
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__revision__ = "$Revision$"[11:-2]
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import os
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import sys
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from code import InteractiveInterpreter
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import dispatcher
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import introspect
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import wx
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class Interpreter(InteractiveInterpreter):
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"""Interpreter based on code.InteractiveInterpreter."""
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revision = __revision__
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def __init__(self, locals=None, rawin=None,
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stdin=sys.stdin, stdout=sys.stdout, stderr=sys.stderr):
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"""Create an interactive interpreter object."""
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InteractiveInterpreter.__init__(self, locals=locals)
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self.stdin = stdin
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self.stdout = stdout
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self.stderr = stderr
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if rawin:
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import __builtin__
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__builtin__.raw_input = rawin
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del __builtin__
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copyright = 'Type "help", "copyright", "credits" or "license"'
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copyright += ' for more information.'
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self.introText = 'Python %s on %s%s%s' % \
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(sys.version, sys.platform, os.linesep, copyright)
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try:
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sys.ps1
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except AttributeError:
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sys.ps1 = '>>> '
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try:
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sys.ps2
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except AttributeError:
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sys.ps2 = '... '
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self.more = 0
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# List of lists to support recursive push().
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self.commandBuffer = []
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self.startupScript = os.environ.get('PYTHONSTARTUP')
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def push(self, command):
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"""Send command to the interpreter to be executed.
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Because this may be called recursively, we append a new list
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onto the commandBuffer list and then append commands into
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that. If the passed in command is part of a multi-line
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command we keep appending the pieces to the last list in
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commandBuffer until we have a complete command. If not, we
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delete that last list."""
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# In case the command is unicode try encoding it
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if type(command) == unicode:
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try:
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command = command.encode(wx.GetDefaultPyEncoding())
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except UnicodeEncodeError:
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pass # otherwise leave it alone
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if not self.more:
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try: del self.commandBuffer[-1]
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except IndexError: pass
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if not self.more: self.commandBuffer.append([])
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self.commandBuffer[-1].append(command)
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source = '\n'.join(self.commandBuffer[-1])
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more = self.more = self.runsource(source)
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dispatcher.send(signal='Interpreter.push', sender=self,
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command=command, more=more, source=source)
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return more
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def runsource(self, source):
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"""Compile and run source code in the interpreter."""
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stdin, stdout, stderr = sys.stdin, sys.stdout, sys.stderr
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sys.stdin, sys.stdout, sys.stderr = \
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self.stdin, self.stdout, self.stderr
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more = InteractiveInterpreter.runsource(self, source)
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# If sys.std* is still what we set it to, then restore it.
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# But, if the executed source changed sys.std*, assume it was
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# meant to be changed and leave it. Power to the people.
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if sys.stdin == self.stdin:
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sys.stdin = stdin
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if sys.stdout == self.stdout:
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sys.stdout = stdout
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if sys.stderr == self.stderr:
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sys.stderr = stderr
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return more
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def getAutoCompleteKeys(self):
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"""Return list of auto-completion keycodes."""
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return [ord('.')]
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def getAutoCompleteList(self, command='', *args, **kwds):
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"""Return list of auto-completion options for a command.
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The list of options will be based on the locals namespace."""
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stdin, stdout, stderr = sys.stdin, sys.stdout, sys.stderr
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sys.stdin, sys.stdout, sys.stderr = \
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self.stdin, self.stdout, self.stderr
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l = introspect.getAutoCompleteList(command, self.locals,
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*args, **kwds)
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sys.stdin, sys.stdout, sys.stderr = stdin, stdout, stderr
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return l
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def getCallTip(self, command='', *args, **kwds):
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"""Return call tip text for a command.
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Call tip information will be based on the locals namespace."""
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return introspect.getCallTip(command, self.locals, *args, **kwds)
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class InterpreterAlaCarte(Interpreter):
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"""Demo Interpreter."""
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def __init__(self, locals, rawin, stdin, stdout, stderr,
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ps1='main prompt', ps2='continuation prompt'):
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"""Create an interactive interpreter object."""
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Interpreter.__init__(self, locals=locals, rawin=rawin,
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stdin=stdin, stdout=stdout, stderr=stderr)
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sys.ps1 = ps1
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sys.ps2 = ps2
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