| """Extension to execute code outside the Python shell window. |
| |
| This adds the following commands: |
| |
| - Check module does a full syntax check of the current module. |
| It also runs the tabnanny to catch any inconsistent tabs. |
| |
| - Run module executes the module's code in the __main__ namespace. The window |
| must have been saved previously. The module is added to sys.modules, and is |
| also added to the __main__ namespace. |
| |
| XXX GvR Redesign this interface (yet again) as follows: |
| |
| - Present a dialog box for ``Run Module'' |
| |
| - Allow specify command line arguments in the dialog box |
| |
| """ |
| |
| import re |
| import string |
| import tabnanny |
| import tokenize |
| import tkMessageBox |
| import PyShell |
| |
| from configHandler import idleConf |
| |
| IDENTCHARS = string.ascii_letters + string.digits + "_" |
| |
| indent_message = """Error: Inconsistent indentation detected! |
| |
| This means that either: |
| |
| 1) your indentation is outright incorrect (easy to fix), or |
| |
| 2) your indentation mixes tabs and spaces in a way that depends on \ |
| how many spaces a tab is worth. |
| |
| To fix case 2, change all tabs to spaces by using Select All followed \ |
| by Untabify Region (both in the Edit menu).""" |
| |
| |
| class ScriptBinding: |
| |
| menudefs = [ |
| ('run', [None, |
| ('Check Module', '<<check-module>>'), |
| ('Run Module', '<<run-module>>'), ]), ] |
| |
| def __init__(self, editwin): |
| self.editwin = editwin |
| # Provide instance variables referenced by Debugger |
| # XXX This should be done differently |
| self.flist = self.editwin.flist |
| self.root = self.flist.root |
| |
| def check_module_event(self, event): |
| filename = self.getfilename() |
| if not filename: |
| return |
| if not self.tabnanny(filename): |
| return |
| self.checksyntax(filename) |
| |
| def tabnanny(self, filename): |
| f = open(filename, 'r') |
| try: |
| tabnanny.process_tokens(tokenize.generate_tokens(f.readline)) |
| except tokenize.TokenError, msg: |
| self.errorbox("Token error", "Token error:\n%s" % msg) |
| return False |
| except tabnanny.NannyNag, nag: |
| # The error messages from tabnanny are too confusing... |
| self.editwin.gotoline(nag.get_lineno()) |
| self.errorbox("Tab/space error", indent_message) |
| return False |
| return True |
| |
| def checksyntax(self, filename): |
| f = open(filename, 'r') |
| source = f.read() |
| f.close() |
| if '\r' in source: |
| source = re.sub(r"\r\n", "\n", source) |
| if source and source[-1] != '\n': |
| source = source + '\n' |
| try: |
| # If successful, return the compiled code |
| return compile(source, filename, "exec") |
| except (SyntaxError, OverflowError), err: |
| try: |
| msg, (errorfilename, lineno, offset, line) = err |
| if not errorfilename: |
| err.args = msg, (filename, lineno, offset, line) |
| err.filename = filename |
| self.colorize_syntax_error(msg, lineno, offset) |
| except: |
| msg = "*** " + str(err) |
| self.errorbox("Syntax error", |
| "There's an error in your program:\n" + msg) |
| return False |
| |
| def colorize_syntax_error(self, msg, lineno, offset): |
| text = self.editwin.text |
| pos = "0.0 + %d lines + %d chars" % (lineno-1, offset-1) |
| text.tag_add("ERROR", pos) |
| char = text.get(pos) |
| if char and char in IDENTCHARS: |
| text.tag_add("ERROR", pos + " wordstart", pos) |
| if '\n' == text.get(pos): # error at line end |
| text.mark_set("insert", pos) |
| else: |
| text.mark_set("insert", pos + "+1c") |
| text.see(pos) |
| |
| def run_module_event(self, event): |
| "Check syntax, if ok run the module in the shell top level" |
| filename = self.getfilename() |
| if not filename: |
| return |
| code = self.checksyntax(filename) |
| if not code: |
| return |
| flist = self.editwin.flist |
| shell = flist.open_shell() |
| interp = shell.interp |
| if PyShell.use_subprocess: |
| shell.restart_shell() |
| # XXX Too often this discards arguments the user just set... |
| interp.runcommand("""if 1: |
| _filename = %s |
| import sys as _sys |
| from os.path import basename as _basename |
| if (not _sys.argv or |
| _basename(_sys.argv[0]) != _basename(_filename)): |
| _sys.argv = [_filename] |
| del _filename, _sys, _basename |
| \n""" % `filename`) |
| interp.prepend_syspath(filename) |
| interp.runcode(code) |
| |
| def getfilename(self): |
| """Get source filename. If not saved, offer to save (or create) file |
| |
| The debugger requires a source file. Make sure there is one, and that |
| the current version of the source buffer has been saved. If the user |
| declines to save or cancels the Save As dialog, return None. |
| |
| If the user has configured IDLE for Autosave, the file will be |
| silently saved if it already exists and is dirty. |
| |
| """ |
| filename = self.editwin.io.filename |
| if not self.editwin.get_saved(): |
| autosave = idleConf.GetOption('main', 'General', |
| 'autosave', type='bool') |
| if autosave and filename: |
| self.editwin.io.save(None) |
| else: |
| reply = self.ask_save_dialog() |
| self.editwin.text.focus_set() |
| if reply == "ok": |
| self.editwin.io.save(None) |
| filename = self.editwin.io.filename |
| else: |
| filename = None |
| return filename |
| |
| def ask_save_dialog(self): |
| msg = "Source Must Be Saved\n" + 5*' ' + "OK to Save?" |
| mb = tkMessageBox.Message(title="Save Before Run or Check", |
| message=msg, |
| icon=tkMessageBox.QUESTION, |
| type=tkMessageBox.OKCANCEL, |
| default=tkMessageBox.OK, |
| master=self.editwin.text) |
| return mb.show() |
| |
| def errorbox(self, title, message): |
| # XXX This should really be a function of EditorWindow... |
| tkMessageBox.showerror(title, message, master=self.editwin.text) |
| self.editwin.text.focus_set() |