155 lines
5.0 KiB
Python
155 lines
5.0 KiB
Python
"""Extension to execute code outside the Python shell window.
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This adds the following commands:
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- Check module does a full syntax check of the current module.
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It also runs the tabnanny to catch any inconsistent tabs.
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- Run module executes the module's code in the __main__ namespace. The window
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must have been saved previously. The module is added to sys.modules, and is
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also added to the __main__ namespace.
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XXX Redesign this interface (yet again) as follows:
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- Present a dialog box for ``Run script''
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- Allow specify command line arguments in the dialog box
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"""
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import sys
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import os
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import imp
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import tkMessageBox
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indent_message = """Error: Inconsistent indentation detected!
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This means that either:
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1) your indentation is outright incorrect (easy to fix), or
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2) your indentation mixes tabs and spaces in a way that depends on \
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how many spaces a tab is worth.
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To fix case 2, change all tabs to spaces by using Select All followed \
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by Untabify Region (both in the Edit menu)."""
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# XXX TBD Implement stop-execution KBK 11Jun02
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class ScriptBinding:
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menudefs = [
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('run', [None,
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# ('Check module', '<<check-module>>'),
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('Run script', '<<run-script>>'),
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]
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),
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]
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def __init__(self, editwin):
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self.editwin = editwin
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# Provide instance variables referenced by Debugger
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# XXX This should be done differently
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self.flist = self.editwin.flist
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self.root = self.flist.root
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def check_module_event(self, event):
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filename = self.getfilename()
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if not filename:
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return
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if not self.tabnanny(filename):
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return
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if not self.checksyntax(filename):
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return
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def tabnanny(self, filename):
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import tabnanny
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import tokenize
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f = open(filename, 'r')
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try:
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tabnanny.process_tokens(tokenize.generate_tokens(f.readline))
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except tokenize.TokenError, msg:
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self.errorbox("Token error",
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"Token error:\n%s" % str(msg))
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return 0
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except tabnanny.NannyNag, nag:
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# The error messages from tabnanny are too confusing...
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self.editwin.gotoline(nag.get_lineno())
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self.errorbox("Tab/space error", indent_message)
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return 0
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return 1
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def checksyntax(self, filename):
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f = open(filename, 'r')
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source = f.read()
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f.close()
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if '\r' in source:
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import re
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source = re.sub(r"\r\n", "\n", source)
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if source and source[-1] != '\n':
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source = source + '\n'
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try:
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compile(source, filename, "exec")
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except (SyntaxError, OverflowError), err:
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try:
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msg, (errorfilename, lineno, offset, line) = err
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if not errorfilename:
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err.args = msg, (filename, lineno, offset, line)
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err.filename = filename
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except:
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lineno = None
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msg = "*** " + str(err)
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if lineno:
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self.editwin.gotoline(lineno)
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self.errorbox("Syntax error",
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"There's an error in your program:\n" + msg)
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return 1
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def run_script_event(self, event):
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filename = self.getfilename()
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if not filename:
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return
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flist = self.editwin.flist
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shell = flist.open_shell()
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interp = shell.interp
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if interp.tkconsole.executing:
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interp.display_executing_dialog()
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return
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interp.restart_subprocess()
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# XXX Too often this discards arguments the user just set...
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interp.runcommand("""if 1:
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_filename = %s
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import sys as _sys
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from os.path import basename as _basename
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if (not _sys.argv or
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_basename(_sys.argv[0]) != _basename(_filename)):
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# XXX 25 July 2002 KBK should this be sys.argv not _sys.argv?
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_sys.argv = [_filename]
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del _filename, _sys, _basename
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\n""" % `filename`)
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interp.execfile(filename)
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def getfilename(self):
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# Logic to make sure we have a saved filename
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# XXX Better logic would offer to save!
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if not self.editwin.get_saved():
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name = (self.editwin.short_title() or
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self.editwin.long_title() or
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"Untitled")
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self.errorbox("Not saved",
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"The buffer for %s is not saved.\n" % name +
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"Please save it first!")
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self.editwin.text.focus_set()
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return
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filename = self.editwin.io.filename
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if not filename:
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self.errorbox("No file name",
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"This window has no file name")
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return
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return filename
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def errorbox(self, title, message):
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# XXX This should really be a function of EditorWindow...
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tkMessageBox.showerror(title, message, master=self.editwin.text)
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self.editwin.text.focus_set()
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