566 lines
18 KiB
Python
566 lines
18 KiB
Python
#! /usr/bin/env python
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import os
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import sys
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import string
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import re
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import linecache
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from code import InteractiveInterpreter
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from Tkinter import *
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import tkMessageBox
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from EditorWindow import fixwordbreaks
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from FileList import FileList, MultiEditorWindow, MultiIOBinding
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from ColorDelegator import ColorDelegator
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class PyShellEditorWindow(MultiEditorWindow):
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def fixedwindowsmenu(self, wmenu):
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wmenu.add_command(label="Python Shell", command=self.flist.open_shell)
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class PyShellFileList(FileList):
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EditorWindow = PyShellEditorWindow
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pyshell = None
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def open_shell(self):
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if self.pyshell:
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self.pyshell.wakeup()
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else:
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self.pyshell = PyShell(self)
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self.pyshell.begin()
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return self.pyshell
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class ModifiedIOBinding(MultiIOBinding):
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def defaultfilename(self, mode="open"):
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if self.filename:
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return MultiIOBinding.defaultfilename(self, mode)
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else:
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try:
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pwd = os.getcwd()
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except os.error:
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pwd = ""
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return pwd, ""
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def open(self, event):
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# Override base class method -- don't allow reusing this window
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filename = self.askopenfile()
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if filename:
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self.flist.open(filename)
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return "break"
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def maybesave(self):
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# Override base class method -- don't ask any questions
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if self.text.get_saved():
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return "yes"
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else:
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return "no"
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class ModifiedColorDelegator(ColorDelegator):
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def recolorize_main(self):
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self.tag_remove("TODO", "1.0", "iomark")
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self.tag_add("SYNC", "1.0", "iomark")
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ColorDelegator.recolorize_main(self)
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class ModifiedInterpreter(InteractiveInterpreter):
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def __init__(self, tkconsole):
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self.tkconsole = tkconsole
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InteractiveInterpreter.__init__(self)
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gid = 0
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def runsource(self, source):
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# Extend base class to stuff the source in the line cache
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filename = "<console#%d>" % self.gid
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self.gid = self.gid + 1
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lines = string.split(source, "\n")
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linecache.cache[filename] = len(source)+1, 0, lines, filename
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self.more = 0
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return InteractiveInterpreter.runsource(self, source, filename)
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def showsyntaxerror(self, filename=None):
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# Extend base class to color the offending position
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# (instead of printing it and pointing at it with a caret)
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text = self.tkconsole.text
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stuff = self.unpackerror()
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if not stuff:
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self.tkconsole.resetoutput()
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InteractiveInterpreter.showsyntaxerror(self, filename)
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return
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msg, lineno, offset, line = stuff
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if lineno == 1:
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pos = "iomark + %d chars" % (offset-1)
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else:
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pos = "iomark linestart + %d lines + %d chars" % (lineno-1,
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offset-1)
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text.tag_add("ERROR", pos)
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text.see(pos)
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char = text.get(pos)
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if char in string.letters + string.digits + "_":
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text.tag_add("ERROR", pos + " wordstart", pos)
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self.tkconsole.resetoutput()
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self.write("SyntaxError: %s\n" % str(msg))
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def unpackerror(self):
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type, value, tb = sys.exc_info()
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ok = type == SyntaxError
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if ok:
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try:
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msg, (dummy_filename, lineno, offset, line) = value
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except:
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ok = 0
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if ok:
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return msg, lineno, offset, line
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else:
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return None
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def showtraceback(self):
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# Extend base class method to reset output properly
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text = self.tkconsole.text
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self.tkconsole.resetoutput()
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InteractiveInterpreter.showtraceback(self)
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def runcode(self, code):
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# Override base class method
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try:
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self.tkconsole.beginexecuting()
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try:
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exec code in self.locals
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except SystemExit:
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if tkMessageBox.askyesno(
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"Exit?",
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"Do you want to exit altogether?",
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default="yes",
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master=self.tkconsole.text):
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raise
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else:
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self.showtraceback()
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except:
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self.showtraceback()
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finally:
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self.tkconsole.endexecuting()
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def write(self, s):
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# Override base class write
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self.tkconsole.console.write(s)
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class PyShell(PyShellEditorWindow):
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# Override classes
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ColorDelegator = ModifiedColorDelegator
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IOBinding = ModifiedIOBinding
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# Override menu bar specs
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menu_specs = PyShellEditorWindow.menu_specs[:]
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menu_specs.insert(len(menu_specs)-1, ("debug", "Debug"))
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# New class
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from History import History
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def __init__(self, flist=None):
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self.interp = ModifiedInterpreter(self)
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if flist is None:
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root = Tk()
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fixwordbreaks(root)
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root.withdraw()
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flist = PyShellFileList(root)
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PyShellEditorWindow.__init__(self, flist, None, None)
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self.config_colors()
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import __builtin__
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__builtin__.quit = __builtin__.exit = "To exit, type Ctrl-D."
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self.auto.config(prefertabs=1)
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text = self.text
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text.bind("<<newline-and-indent>>", self.enter_callback)
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text.bind("<<plain-newline-and-indent>>", self.linefeed_callback)
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text.bind("<<interrupt-execution>>", self.cancel_callback)
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text.bind("<<beginning-of-line>>", self.home_callback)
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text.bind("<<end-of-file>>", self.eof_callback)
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text.bind("<<goto-traceback-line>>", self.goto_traceback_line)
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text.bind("<<open-stack-viewer>>", self.open_stack_viewer)
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sys.stdout = PseudoFile(self, "stdout")
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sys.stderr = PseudoFile(self, "stderr")
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sys.stdin = self
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self.console = PseudoFile(self, "console")
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self.history = self.History(self.text)
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tagdefs = {
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##"stdin": {"background": "yellow"},
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"stdout": {"foreground": "blue"},
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"stderr": {"foreground": "#007700"},
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"console": {"foreground": "red"},
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"ERROR": {"background": "#FF7777"},
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None: {"foreground": "purple"}, # default
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}
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def config_colors(self):
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for tag, cnf in self.tagdefs.items():
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if cnf:
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if not tag:
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apply(self.text.configure, (), cnf)
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else:
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apply(self.text.tag_configure, (tag,), cnf)
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reading = 0
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executing = 0
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canceled = 0
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endoffile = 0
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def beginexecuting(self):
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# Helper for ModifiedInterpreter
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self.resetoutput()
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self.executing = 1
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self._cancel_check = self.cancel_check
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##sys.settrace(self._cancel_check)
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def endexecuting(self):
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# Helper for ModifiedInterpreter
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sys.settrace(None)
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self.executing = 0
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self.canceled = 0
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def close(self):
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# Extend base class method
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if self.executing:
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# XXX Need to ask a question here
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if not tkMessageBox.askokcancel(
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"Cancel?",
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"The program is still running; do you want to cancel it?",
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default="ok",
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master=self.text):
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return "cancel"
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self.canceled = 1
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if self.reading:
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self.top.quit()
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return "cancel"
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reply = PyShellEditorWindow.close(self)
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if reply != "cancel":
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self.flist.pyshell = None
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# Restore std streams
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sys.stdout = sys.__stdout__
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sys.stderr = sys.__stderr__
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sys.stdin = sys.__stdin__
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# Break cycles
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self.interp = None
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self.console = None
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return reply
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def ispythonsource(self, filename):
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# Override this so EditorWindow never removes the colorizer
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return 1
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def saved_change_hook(self):
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# Override this to get the title right
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title = "Python Shell"
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if self.io.filename:
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title = title + ": " + self.io.filename
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if not self.undo.get_saved():
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title = title + " *"
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self.top.wm_title(title)
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def begin(self):
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self.resetoutput()
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self.write("Python %s on %s\n%s\n" %
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(sys.version, sys.platform, sys.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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self.showprompt()
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import Tkinter
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Tkinter._default_root = None
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def interact(self):
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self.begin()
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self.top.mainloop()
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def readline(self):
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save = self.reading
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try:
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self.reading = 1
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self.top.mainloop()
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finally:
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self.reading = save
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line = self.text.get("iomark", "end-1c")
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self.resetoutput()
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if self.canceled:
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self.canceled = 0
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raise KeyboardInterrupt
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if self.endoffile:
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self.endoffile = 0
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return ""
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return line
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def cancel_callback(self, event):
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try:
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if self.text.compare("sel.first", "!=", "sel.last"):
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return # Active selection -- always use default binding
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except:
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pass
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if not (self.executing or self.reading):
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self.resetoutput()
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self.write("KeyboardInterrupt\n")
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self.showprompt()
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return "break"
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self.endoffile = 0
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self.canceled = 1
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if self.reading:
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self.top.quit()
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return "break"
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def eof_callback(self, event):
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if self.executing and not self.reading:
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return # Let the default binding (delete next char) take over
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if not (self.text.compare("iomark", "==", "insert") and
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self.text.compare("insert", "==", "end-1c")):
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return # Let the default binding (delete next char) take over
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if not self.executing:
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## if not tkMessageBox.askokcancel(
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## "Exit?",
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## "Are you sure you want to exit?",
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## default="ok", master=self.text):
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## return "break"
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self.resetoutput()
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self.close()
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else:
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self.canceled = 0
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self.endoffile = 1
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self.top.quit()
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return "break"
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def home_callback(self, event):
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if event.state != 0 and event.keysym == "Home":
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return # <Modifier-Home>; fall back to class binding
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if self.text.compare("iomark", "<=", "insert") and \
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self.text.compare("insert linestart", "<=", "iomark"):
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self.text.mark_set("insert", "iomark")
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self.text.tag_remove("sel", "1.0", "end")
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self.text.see("insert")
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return "break"
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def linefeed_callback(self, event):
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# Insert a linefeed without entering anything (still autoindented)
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if self.reading:
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self.text.insert("insert", "\n")
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self.text.see("insert")
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else:
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self.auto.autoindent(event)
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return "break"
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def enter_callback(self, event):
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if self.executing and not self.reading:
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return # Let the default binding (insert '\n') take over
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# If some text is selected, recall the selection
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# (but only if this before the I/O mark)
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try:
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sel = self.text.get("sel.first", "sel.last")
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if sel:
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if self.text.compare("self.last", "<=", "iomark"):
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self.recall(sel)
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return "break"
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except:
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pass
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# If we're strictly before the line containing iomark, recall
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# the current line, less a leading prompt, less leading or
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# trailing whitespace
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if self.text.compare("insert", "<", "iomark linestart"):
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# Check if there's a relevant stdin range -- if so, use it
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prev = self.text.tag_prevrange("stdin", "insert")
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if prev and self.text.compare("insert", "<", prev[1]):
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self.recall(self.text.get(prev[0], prev[1]))
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return "break"
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next = self.text.tag_nextrange("stdin", "insert")
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if next and self.text.compare("insert lineend", ">=", next[0]):
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self.recall(self.text.get(next[0], next[1]))
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return "break"
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# No stdin mark -- just get the current line
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self.recall(self.text.get("insert linestart", "insert lineend"))
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return "break"
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# If we're in the current input before its last line,
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# insert a newline right at the insert point
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if self.text.compare("insert", "<", "end-1c linestart"):
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self.auto.autoindent(event)
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return "break"
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# We're in the last line; append a newline and submit it
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self.text.mark_set("insert", "end-1c")
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if self.reading:
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self.text.insert("insert", "\n")
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self.text.see("insert")
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else:
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self.auto.autoindent(event)
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self.text.tag_add("stdin", "iomark", "end-1c")
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self.text.update_idletasks()
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if self.reading:
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self.top.quit() # Break out of recursive mainloop() in raw_input()
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else:
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self.runit()
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return "break"
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def recall(self, s):
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if self.history:
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self.history.recall(s)
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def runit(self):
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line = self.text.get("iomark", "end-1c")
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# Strip off last newline and surrounding whitespace.
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# (To allow you to hit return twice to end a statement.)
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i = len(line)
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while i > 0 and line[i-1] in " \t":
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i = i-1
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if i > 0 and line[i-1] == "\n":
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i = i-1
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while i > 0 and line[i-1] in " \t":
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i = i-1
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line = line[:i]
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more = self.interp.runsource(line)
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if not more:
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self.showprompt()
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def cancel_check(self, frame, what, args,
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dooneevent=tkinter.dooneevent,
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dontwait=tkinter.DONT_WAIT):
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# Hack -- use the debugger hooks to be able to handle events
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# and interrupt execution at any time.
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# This slows execution down quite a bit, so you may want to
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# disable this (by not calling settrace() in runcode() above)
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# for full-bore (uninterruptable) speed.
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# XXX This should become a user option.
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if self.canceled:
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return
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dooneevent(dontwait)
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if self.canceled:
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self.canceled = 0
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raise KeyboardInterrupt
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return self._cancel_check
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file_line_pats = [
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r'File "([^"]*)", line (\d+)',
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r'([^\s]+)\((\d+)\)',
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r'([^\s]+):\s*(\d+):',
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]
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file_line_progs = None
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def goto_traceback_line(self, event=None):
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if self.file_line_progs is None:
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l = []
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for pat in self.file_line_pats:
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l.append(re.compile(pat))
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self.file_line_progs = l
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# x, y = self.event.x, self.event.y
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# self.text.mark_set("insert", "@%d,%d" % (x, y))
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line = self.text.get("insert linestart", "insert lineend")
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for prog in self.file_line_progs:
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m = prog.search(line)
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if m:
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break
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else:
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tkMessageBox.showerror("No traceback line",
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"The line you point at doesn't look "
|
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"like an error message.",
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master=self.text)
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return
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filename, lineno = m.group(1, 2)
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try:
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f = open(filename, "r")
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f.close()
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except IOError, msg:
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self.text.bell()
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return
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edit = self.flist.open(filename)
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try:
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lineno = int(lineno)
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except ValueError, msg:
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self.text.bell()
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return
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edit.gotoline(lineno)
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def open_stack_viewer(self, event=None):
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try:
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sys.last_traceback
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except:
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tkMessageBox.showerror("No stack trace",
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"There is no stack trace yet.\n"
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"(sys.last_traceback is not defined)",
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master=self.text)
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return
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from StackViewer import StackViewer
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sv = StackViewer(self.root, self.flist)
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|
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def showprompt(self):
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self.resetoutput()
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try:
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s = str(sys.ps1)
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except:
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s = ""
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self.console.write(s)
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self.text.mark_set("insert", "end-1c")
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def resetoutput(self):
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source = self.text.get("iomark", "end-1c")
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if self.history:
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self.history.history_store(source)
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if self.text.get("end-2c") != "\n":
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self.text.insert("end-1c", "\n")
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self.text.mark_set("iomark", "end-1c")
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sys.stdout.softspace = 0
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def write(self, s):
|
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# Overrides base class write
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self.console.write(s)
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|
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class PseudoFile:
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def __init__(self, interp, tags):
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self.interp = interp
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self.text = interp.text
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self.tags = tags
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def write(self, s):
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self.text.mark_gravity("iomark", "right")
|
|
self.text.insert("iomark", str(s), self.tags)
|
|
self.text.mark_gravity("iomark", "left")
|
|
self.text.see("iomark")
|
|
self.text.update()
|
|
if self.interp.canceled:
|
|
self.interp.canceled = 0
|
|
raise KeyboardInterrupt
|
|
|
|
def writelines(self, l):
|
|
map(self.write, l)
|
|
|
|
|
|
def main():
|
|
global flist, root
|
|
root = Tk()
|
|
fixwordbreaks(root)
|
|
root.withdraw()
|
|
flist = PyShellFileList(root)
|
|
if sys.argv[1:]:
|
|
for filename in sys.argv[1:]:
|
|
flist.open(filename)
|
|
t = PyShell(flist)
|
|
flist.pyshell = t
|
|
t.begin()
|
|
root.mainloop()
|
|
|
|
if __name__ == "__main__":
|
|
main()
|