from Tkinter import *

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from idlelib.EditorWindow import EditorWindow

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import re

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import tkMessageBox

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from idlelib import IOBinding

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class OutputWindow(EditorWindow):

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"""An editor window that can serve as an output file.

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Also the future base class for the Python shell window.

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This class has no input facilities.

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"""

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def __init__(self, *args):

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EditorWindow.__init__(self, *args)

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self.text.bind("<<goto-file-line>>", self.goto_file_line)

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# Customize EditorWindow

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def ispythonsource(self, filename):

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# No colorization needed

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return 0

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def short_title(self):

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return "Output"

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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.get_saved():

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return "yes"

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else:

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return "no"

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# Act as output file

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def write(self, s, tags=(), mark="insert"):

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# Tk assumes that byte strings are Latin-1;

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# we assume that they are in the locale's encoding

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if isinstance(s, str):

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try:

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s = unicode(s, IOBinding.encoding)

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except UnicodeError:

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# some other encoding; let Tcl deal with it

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pass

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self.text.insert(mark, s, tags)

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self.text.see(mark)

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self.text.update()

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def writelines(self, lines):

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for line in lines:

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self.write(line)

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def flush(self):

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pass

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# Our own right-button menu

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rmenu_specs = [

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("Cut", "<<cut>>", "rmenu_check_cut"),

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("Copy", "<<copy>>", "rmenu_check_copy"),

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("Paste", "<<paste>>", "rmenu_check_paste"),

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(None, None, None),

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("Go to file/line", "<<goto-file-line>>", None),

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]

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file_line_pats = [

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# order of patterns matters

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r'file "([^"]*)", line (\d+)',

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r'([^\s]+)\((\d+)\)',

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r'^(\s*\S.*?):\s*(\d+):', # Win filename, maybe starting with spaces

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r'([^\s]+):\s*(\d+):', # filename or path, ltrim

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r'^\s*(\S.*?):\s*(\d+):', # Win abs path with embedded spaces, ltrim

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]

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file_line_progs = None

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def goto_file_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, re.IGNORECASE))

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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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result = self._file_line_helper(line)

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if not result:

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# Try the previous line. This is handy e.g. in tracebacks,

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# where you tend to right-click on the displayed source line

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line = self.text.get("insert -1line linestart",

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"insert -1line lineend")

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result = self._file_line_helper(line)

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if not result:

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tkMessageBox.showerror(

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"No special line",

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"The line you point at doesn't look like "

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"a valid file name followed by a line number.",

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parent=self.text)

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return

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filename, lineno = result

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edit = self.flist.open(filename)

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edit.gotoline(lineno)

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def _file_line_helper(self, line):

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for prog in self.file_line_progs:

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match = prog.search(line)

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if match:

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filename, lineno = match.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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break

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except IOError:

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continue

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else:

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return None

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try:

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return filename, int(lineno)

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except TypeError:

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return None

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# These classes are currently not used but might come in handy

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class OnDemandOutputWindow:

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tagdefs = {

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# XXX Should use IdlePrefs.ColorPrefs

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"stdout": {"foreground": "blue"},

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"stderr": {"foreground": "#007700"},

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}

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def __init__(self, flist):

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self.flist = flist

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self.owin = None

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def write(self, s, tags, mark):

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if not self.owin:

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self.setup()

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self.owin.write(s, tags, mark)

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def setup(self):

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self.owin = owin = OutputWindow(self.flist)

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text = owin.text

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for tag, cnf in self.tagdefs.items():

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if cnf:

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text.tag_configure(tag, **cnf)

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text.tag_raise('sel')

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self.write = self.owin.write

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