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Poodletooth-iLand/panda/python/Lib/site-packages/wx/py/editor.py
Zach 10cf2f553e added wx, setuptools, and pip
2015-03-06 06:11:40 -06:00

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#----------------------------------------------------------------------
# Name: editor.py
# Author: Patrick K. O'Brien <pobrien@orbtech.com>
# Tags: phoenix-port
#----------------------------------------------------------------------
"""PyAlaCarte and PyAlaMode editors."""
__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
import wx
from .buffer import Buffer
from . import crust
from . import dispatcher
from . import editwindow
from . import frame
from .shell import Shell
from . import version
class EditorFrame(frame.Frame):
"""Frame containing one editor."""
def __init__(self, parent=None, id=-1, title='PyAlaCarte',
pos=wx.DefaultPosition, size=(800, 600),
style=wx.DEFAULT_FRAME_STYLE | wx.NO_FULL_REPAINT_ON_RESIZE,
filename=None):
"""Create EditorFrame instance."""
frame.Frame.__init__(self, parent, id, title, pos, size, style)
self.buffers = {}
self.buffer = None # Current buffer.
self.editor = None
self._defaultText = title + ' - the tastiest Python editor.'
self._statusText = self._defaultText
self.SetStatusText(self._statusText)
self.Bind(wx.EVT_IDLE, self.OnIdle)
self._setup()
if filename:
self.bufferCreate(filename)
def _setup(self):
"""Setup prior to first buffer creation.
Useful for subclasses."""
pass
def setEditor(self, editor):
self.editor = editor
self.buffer = self.editor.buffer
self.buffers[self.buffer.id] = self.buffer
def OnAbout(self, event):
"""Display an About window."""
title = 'About PyAlaCarte'
text = 'Another fine, flaky program.'
dialog = wx.MessageDialog(self, text, title,
wx.OK | wx.ICON_INFORMATION)
dialog.ShowModal()
dialog.Destroy()
def OnClose(self, event):
"""Event handler for closing."""
for buffer in self.buffers.values():
self.buffer = buffer
if buffer.hasChanged():
cancel = self.bufferSuggestSave()
if cancel and event.CanVeto():
event.Veto()
return
self.Destroy()
def OnIdle(self, event):
"""Event handler for idle time."""
self._updateStatus()
if hasattr(self, 'notebook'):
self._updateTabText()
self._updateTitle()
event.Skip()
def _updateStatus(self):
"""Show current status information."""
if self.editor and hasattr(self.editor, 'getStatus'):
status = self.editor.getStatus()
text = 'File: %s | Line: %d | Column: %d' % status
else:
text = self._defaultText
if text != self._statusText:
self.SetStatusText(text)
self._statusText = text
def _updateTabText(self):
"""Show current buffer information on notebook tab."""
## suffix = ' **'
## notebook = self.notebook
## selection = notebook.GetSelection()
## if selection == -1:
## return
## text = notebook.GetPageText(selection)
## window = notebook.GetPage(selection)
## if window.editor and window.editor.buffer.hasChanged():
## if text.endswith(suffix):
## pass
## else:
## notebook.SetPageText(selection, text + suffix)
## else:
## if text.endswith(suffix):
## notebook.SetPageText(selection, text[:len(suffix)])
def _updateTitle(self):
"""Show current title information."""
title = self.GetTitle()
if self.bufferHasChanged():
if title.startswith('* '):
pass
else:
self.SetTitle('* ' + title)
else:
if title.startswith('* '):
self.SetTitle(title[2:])
def hasBuffer(self):
"""Return True if there is a current buffer."""
if self.buffer:
return True
else:
return False
def bufferClose(self):
"""Close buffer."""
if self.bufferHasChanged():
cancel = self.bufferSuggestSave()
if cancel:
return cancel
self.bufferDestroy()
cancel = False
return cancel
def bufferCreate(self, filename=None):
"""Create new buffer."""
self.bufferDestroy()
buffer = Buffer()
self.panel = panel = wx.Panel(parent=self, id=-1)
panel.Bind (wx.EVT_ERASE_BACKGROUND, lambda x: x)
editor = Editor(parent=panel)
panel.editor = editor
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(editor.window, 1, wx.EXPAND)
panel.SetSizer(sizer)
panel.SetAutoLayout(True)
sizer.Layout()
buffer.addEditor(editor)
buffer.open(filename)
self.setEditor(editor)
self.editor.setFocus()
self.SendSizeEvent()
def bufferDestroy(self):
"""Destroy the current buffer."""
if self.buffer:
for editor in self.buffer.editors.values():
editor.destroy()
self.editor = None
del self.buffers[self.buffer.id]
self.buffer = None
self.panel.Destroy()
def bufferHasChanged(self):
"""Return True if buffer has changed since last save."""
if self.buffer:
return self.buffer.hasChanged()
else:
return False
def bufferNew(self):
"""Create new buffer."""
if self.bufferHasChanged():
cancel = self.bufferSuggestSave()
if cancel:
return cancel
self.bufferCreate()
cancel = False
return cancel
def bufferOpen(self):
"""Open file in buffer."""
if self.bufferHasChanged():
cancel = self.bufferSuggestSave()
if cancel:
return cancel
filedir = ''
if self.buffer and self.buffer.doc.filedir:
filedir = self.buffer.doc.filedir
result = openSingle(directory=filedir)
if result.path:
self.bufferCreate(result.path)
cancel = False
return cancel
## def bufferPrint(self):
## """Print buffer."""
## pass
## def bufferRevert(self):
## """Revert buffer to version of file on disk."""
## pass
def bufferSave(self):
"""Save buffer to its file."""
if self.buffer.doc.filepath:
self.buffer.save()
cancel = False
else:
cancel = self.bufferSaveAs()
return cancel
def bufferSaveAs(self):
"""Save buffer to a new filename."""
if self.bufferHasChanged() and self.buffer.doc.filepath:
cancel = self.bufferSuggestSave()
if cancel:
return cancel
filedir = ''
if self.buffer and self.buffer.doc.filedir:
filedir = self.buffer.doc.filedir
result = saveSingle(directory=filedir)
if result.path:
self.buffer.saveAs(result.path)
cancel = False
else:
cancel = True
return cancel
def bufferSuggestSave(self):
"""Suggest saving changes. Return True if user selected Cancel."""
result = messageDialog(parent=None,
message='%s has changed.\n'
'Would you like to save it first'
'?' % self.buffer.name,
title='Save current file?')
if result.positive:
cancel = self.bufferSave()
else:
cancel = result.text == 'Cancel'
return cancel
def updateNamespace(self):
"""Update the buffer namespace for autocompletion and calltips."""
if self.buffer.updateNamespace():
self.SetStatusText('Namespace updated')
else:
self.SetStatusText('Error executing, unable to update namespace')
class EditorNotebookFrame(EditorFrame):
"""Frame containing one or more editors in a notebook."""
def __init__(self, parent=None, id=-1, title='PyAlaMode',
pos=wx.DefaultPosition, size=(800, 600),
style=wx.DEFAULT_FRAME_STYLE | wx.NO_FULL_REPAINT_ON_RESIZE,
filename=None):
"""Create EditorNotebookFrame instance."""
self.notebook = None
EditorFrame.__init__(self, parent, id, title, pos,
size, style, filename)
if self.notebook:
dispatcher.connect(receiver=self._editorChange,
signal='EditorChange', sender=self.notebook)
def _setup(self):
"""Setup prior to first buffer creation.
Called automatically by base class during init."""
self.notebook = EditorNotebook(parent=self)
intro = 'Py %s' % version.VERSION
import imp
module = imp.new_module('__main__')
module.__dict__['__builtins__'] = __builtins__
namespace = module.__dict__.copy()
self.crust = crust.Crust(parent=self.notebook, intro=intro, locals=namespace)
self.shell = self.crust.shell
# Override the filling so that status messages go to the status bar.
self.crust.filling.tree.setStatusText = self.SetStatusText
# Override the shell so that status messages go to the status bar.
self.shell.setStatusText = self.SetStatusText
# Fix a problem with the sash shrinking to nothing.
self.crust.filling.SetSashPosition(200)
self.notebook.AddPage(page=self.crust, text='*Shell*', select=True)
self.setEditor(self.crust.editor)
self.crust.editor.SetFocus()
def _editorChange(self, editor):
"""Editor change signal receiver."""
self.setEditor(editor)
def OnAbout(self, event):
"""Display an About window."""
title = 'About PyAlaMode'
text = 'Another fine, flaky program.'
dialog = wx.MessageDialog(self, text, title,
wx.OK | wx.ICON_INFORMATION)
dialog.ShowModal()
dialog.Destroy()
def _updateTitle(self):
"""Show current title information."""
pass
## title = self.GetTitle()
## if self.bufferHasChanged():
## if title.startswith('* '):
## pass
## else:
## self.SetTitle('* ' + title)
## else:
## if title.startswith('* '):
## self.SetTitle(title[2:])
def bufferCreate(self, filename=None):
"""Create new buffer."""
buffer = Buffer()
panel = wx.Panel(parent=self.notebook, id=-1)
panel.Bind(wx.EVT_ERASE_BACKGROUND, lambda x: x)
editor = Editor(parent=panel)
panel.editor = editor
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(editor.window, 1, wx.EXPAND)
panel.SetSizer(sizer)
panel.SetAutoLayout(True)
sizer.Layout()
buffer.addEditor(editor)
buffer.open(filename)
self.setEditor(editor)
self.notebook.AddPage(page=panel, text=self.buffer.name, select=True)
self.editor.setFocus()
def bufferDestroy(self):
"""Destroy the current buffer."""
selection = self.notebook.GetSelection()
## print("Destroy Selection:", selection)
if selection > 0: # Don't destroy the PyCrust tab.
if self.buffer:
del self.buffers[self.buffer.id]
self.buffer = None # Do this before DeletePage().
self.notebook.DeletePage(selection)
def bufferNew(self):
"""Create new buffer."""
self.bufferCreate()
cancel = False
return cancel
def bufferOpen(self):
"""Open file in buffer."""
filedir = ''
if self.buffer and self.buffer.doc.filedir:
filedir = self.buffer.doc.filedir
result = openMultiple(directory=filedir)
for path in result.paths:
self.bufferCreate(path)
cancel = False
return cancel
class EditorNotebook(wx.Notebook):
"""A notebook containing a page for each editor."""
def __init__(self, parent):
"""Create EditorNotebook instance."""
wx.Notebook.__init__(self, parent, id=-1, style=wx.CLIP_CHILDREN)
self.Bind(wx.EVT_NOTEBOOK_PAGE_CHANGING, self.OnPageChanging, id=self.GetId())
self.Bind(wx.EVT_NOTEBOOK_PAGE_CHANGED, self.OnPageChanged, id=self.GetId())
self.Bind(wx.EVT_IDLE, self.OnIdle)
def OnIdle(self, event):
"""Event handler for idle time."""
self._updateTabText()
event.Skip()
def _updateTabText(self):
"""Show current buffer display name on all but first tab."""
size = 3
changed = ' **'
unchanged = ' --'
selection = self.GetSelection()
if selection < 1:
return
text = self.GetPageText(selection)
window = self.GetPage(selection)
if not window.editor:
return
if text.endswith(changed) or text.endswith(unchanged):
name = text[:-size]
else:
name = text
if name != window.editor.buffer.name:
text = window.editor.buffer.name
if window.editor.buffer.hasChanged():
if text.endswith(changed):
text = None
elif text.endswith(unchanged):
text = text[:-size] + changed
else:
text += changed
else:
if text.endswith(changed):
text = text[:-size] + unchanged
elif text.endswith(unchanged):
text = None
else:
text += unchanged
if text is not None:
self.SetPageText(selection, text)
self.Refresh() # Needed on Win98.
def OnPageChanging(self, event):
"""Page changing event handler."""
event.Skip()
def OnPageChanged(self, event):
"""Page changed event handler."""
new = event.GetSelection()
window = self.GetPage(new)
dispatcher.send(signal='EditorChange', sender=self,
editor=window.editor)
window.SetFocus()
event.Skip()
class EditorShellNotebookFrame(EditorNotebookFrame):
"""Frame containing a notebook containing EditorShellNotebooks."""
def __init__(self, parent=None, id=-1, title='PyAlaModeTest',
pos=wx.DefaultPosition, size=(600, 400),
style=wx.DEFAULT_FRAME_STYLE,
filename=None, singlefile=False):
"""Create EditorShellNotebookFrame instance."""
self._singlefile = singlefile
EditorNotebookFrame.__init__(self, parent, id, title, pos,
size, style, filename)
def _setup(self):
"""Setup prior to first buffer creation.
Called automatically by base class during init."""
if not self._singlefile:
self.notebook = EditorNotebook(parent=self)
def OnAbout(self, event):
"""Display an About window."""
title = 'About PyAlaModePlus'
text = 'Another fine, flaky program.'
dialog = wx.MessageDialog(self, text, title,
wx.OK | wx.ICON_INFORMATION)
dialog.ShowModal()
dialog.Destroy()
def bufferCreate(self, filename=None):
"""Create new buffer."""
if self._singlefile:
self.bufferDestroy()
notebook = EditorShellNotebook(parent=self,
filename=filename)
self.notebook = notebook
else:
notebook = EditorShellNotebook(parent=self.notebook,
filename=filename)
self.setEditor(notebook.editor)
if not self._singlefile:
self.notebook.AddPage(page=notebook, text=self.buffer.name,
select=True)
self.editor.setFocus()
def bufferDestroy(self):
"""Destroy the current buffer."""
if self.buffer:
self.editor = None
del self.buffers[self.buffer.id]
self.buffer = None # Do this before DeletePage().
if self._singlefile:
self.notebook.Destroy()
self.notebook = None
else:
selection = self.notebook.GetSelection()
## print("Destroy Selection:", selection)
self.notebook.DeletePage(selection)
def bufferNew(self):
"""Create new buffer."""
if self._singlefile and self.bufferHasChanged():
cancel = self.bufferSuggestSave()
if cancel:
return cancel
self.bufferCreate()
cancel = False
return cancel
def bufferOpen(self):
"""Open file in buffer."""
if self._singlefile and self.bufferHasChanged():
cancel = self.bufferSuggestSave()
if cancel:
return cancel
filedir = ''
if self.buffer and self.buffer.doc.filedir:
filedir = self.buffer.doc.filedir
if self._singlefile:
result = openSingle(directory=filedir)
if result.path:
self.bufferCreate(result.path)
else:
result = openMultiple(directory=filedir)
for path in result.paths:
self.bufferCreate(path)
cancel = False
return cancel
class EditorShellNotebook(wx.Notebook):
"""A notebook containing an editor page and a shell page."""
def __init__(self, parent, filename=None):
"""Create EditorShellNotebook instance."""
wx.Notebook.__init__(self, parent, id=-1)
usePanels = True
if usePanels:
editorparent = editorpanel = wx.Panel(self, -1)
shellparent = shellpanel = wx.Panel(self, -1)
else:
editorparent = self
shellparent = self
self.buffer = Buffer()
self.editor = Editor(parent=editorparent)
self.buffer.addEditor(self.editor)
self.buffer.open(filename)
self.shell = Shell(parent=shellparent, locals=self.buffer.interp.locals,
style=wx.CLIP_CHILDREN | wx.SUNKEN_BORDER)
self.buffer.interp.locals.clear()
if usePanels:
self.AddPage(page=editorpanel, text='Editor', select=True)
self.AddPage(page=shellpanel, text='Shell')
# Setup sizers
editorsizer = wx.BoxSizer(wx.VERTICAL)
editorsizer.Add(self.editor.window, 1, wx.EXPAND)
editorpanel.SetSizer(editorsizer)
editorpanel.SetAutoLayout(True)
shellsizer = wx.BoxSizer(wx.VERTICAL)
shellsizer.Add(self.shell, 1, wx.EXPAND)
shellpanel.SetSizer(shellsizer)
shellpanel.SetAutoLayout(True)
else:
self.AddPage(page=self.editor.window, text='Editor', select=True)
self.AddPage(page=self.shell, text='Shell')
self.editor.setFocus()
self.Bind(wx.EVT_NOTEBOOK_PAGE_CHANGED, self.OnPageChanged, id=self.GetId())
def OnPageChanged(self, event):
"""Page changed event handler."""
selection = event.GetSelection()
if selection == 0:
self.editor.setFocus()
else:
self.shell.SetFocus()
event.Skip()
def SetFocus(self):
wx.Notebook.SetFocus(self)
selection = self.GetSelection()
if selection == 0:
self.editor.setFocus()
else:
self.shell.SetFocus()
class Editor:
"""Editor having an EditWindow."""
def __init__(self, parent, id=-1, pos=wx.DefaultPosition,
size=wx.DefaultSize,
style=wx.CLIP_CHILDREN | wx.SUNKEN_BORDER):
"""Create Editor instance."""
self.window = EditWindow(self, parent, id, pos, size, style)
self.id = self.window.GetId()
self.buffer = None
# Assign handlers for keyboard events.
self.window.Bind(wx.EVT_CHAR, self.OnChar)
self.window.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown)
def _setBuffer(self, buffer, text):
"""Set the editor to a buffer. Private callback called by buffer."""
self.buffer = buffer
self.autoCompleteKeys = buffer.interp.getAutoCompleteKeys()
self.clearAll()
self.setText(text)
self.emptyUndoBuffer()
self.setSavePoint()
def destroy(self):
"""Destroy all editor objects."""
self.window.Destroy()
def clearAll(self):
self.window.ClearAll()
def emptyUndoBuffer(self):
self.window.EmptyUndoBuffer()
def getStatus(self):
"""Return (filepath, line, column) status tuple."""
if self.window:
pos = self.window.GetCurrentPos()
line = self.window.LineFromPosition(pos) + 1
col = self.window.GetColumn(pos)
if self.buffer:
name = self.buffer.doc.filepath or self.buffer.name
else:
name = ''
status = (name, line, col)
return status
else:
return ('', 0, 0)
def getText(self):
"""Return contents of editor."""
return self.window.GetText()
def hasChanged(self):
"""Return True if contents have changed."""
return self.window.GetModify()
def setFocus(self):
"""Set the input focus to the editor window."""
self.window.SetFocus()
def setSavePoint(self):
self.window.SetSavePoint()
def setText(self, text):
"""Set contents of editor."""
self.window.SetText(text)
def OnChar(self, event):
"""Keypress event handler.
Only receives an event if OnKeyDown calls event.Skip() for the
corresponding event."""
key = event.GetKeyCode()
if key in self.autoCompleteKeys:
# Usually the dot (period) key activates auto completion.
if self.window.AutoCompActive():
self.window.AutoCompCancel()
self.window.ReplaceSelection('')
self.window.AddText(chr(key))
text, pos = self.window.GetCurLine()
text = text[:pos]
if self.window.autoComplete:
self.autoCompleteShow(text)
elif key == ord('('):
# The left paren activates a call tip and cancels an
# active auto completion.
if self.window.AutoCompActive():
self.window.AutoCompCancel()
self.window.ReplaceSelection('')
self.window.AddText('(')
text, pos = self.window.GetCurLine()
text = text[:pos]
self.autoCallTipShow(text)
else:
# Allow the normal event handling to take place.
event.Skip()
def OnKeyDown(self, event):
"""Key down event handler."""
key = event.GetKeyCode()
# If the auto-complete window is up let it do its thing.
if self.window.AutoCompActive():
event.Skip()
return
controlDown = event.ControlDown()
altDown = event.AltDown()
shiftDown = event.ShiftDown()
# Let Ctrl-Alt-* get handled normally.
if controlDown and altDown:
event.Skip()
# Increase font size.
elif controlDown and key in (ord(']'),):
dispatcher.send(signal='FontIncrease')
# Decrease font size.
elif controlDown and key in (ord('['),):
dispatcher.send(signal='FontDecrease')
# Default font size.
elif controlDown and key in (ord('='),):
dispatcher.send(signal='FontDefault')
else:
event.Skip()
def autoCompleteShow(self, command):
"""Display auto-completion popup list."""
list = self.buffer.interp.getAutoCompleteList(command,
includeMagic=self.window.autoCompleteIncludeMagic,
includeSingle=self.window.autoCompleteIncludeSingle,
includeDouble=self.window.autoCompleteIncludeDouble)
if list:
options = ' '.join(list)
offset = 0
self.window.AutoCompShow(offset, options)
def autoCallTipShow(self, command):
"""Display argument spec and docstring in a popup window."""
if self.window.CallTipActive():
self.window.CallTipCancel()
(name, argspec, tip) = self.buffer.interp.getCallTip(command)
if tip:
dispatcher.send(signal='Shell.calltip', sender=self, calltip=tip)
if not self.window.autoCallTip:
return
startpos = self.window.GetCurrentPos()
if argspec:
self.window.AddText(argspec + ')')
endpos = self.window.GetCurrentPos()
self.window.SetSelection(startpos, endpos)
if tip:
tippos = startpos - (len(name) + 1)
fallback = startpos - self.GetColumn(startpos)
# In case there isn't enough room, only go back to the
# fallback.
tippos = max(tippos, fallback)
self.CallTipShow(tippos, tip)
class EditWindow(editwindow.EditWindow):
"""EditWindow based on StyledTextCtrl."""
def __init__(self, editor, parent, id=-1, pos=wx.DefaultPosition,
size=wx.DefaultSize,
style=wx.CLIP_CHILDREN | wx.SUNKEN_BORDER):
"""Create EditWindow instance."""
editwindow.EditWindow.__init__(self, parent, id, pos, size, style)
self.editor = editor
class DialogResults:
"""DialogResults class."""
def __init__(self, returned):
"""Create wrapper for results returned by dialog."""
self.returned = returned
self.positive = returned in (wx.ID_OK, wx.ID_YES)
self.text = self._asString()
def __repr__(self):
return str(self.__dict__)
def _asString(self):
returned = self.returned
if returned == wx.ID_OK:
return "Ok"
elif returned == wx.ID_CANCEL:
return "Cancel"
elif returned == wx.ID_YES:
return "Yes"
elif returned == wx.ID_NO:
return "No"
def fileDialog(parent=None, title='Open', directory='', filename='',
wildcard='All Files (*.*)|*.*',
style=wx.FD_OPEN | wx.FD_MULTIPLE):
"""File dialog wrapper function."""
dialog = wx.FileDialog(parent, title, directory, filename,
wildcard, style)
result = DialogResults(dialog.ShowModal())
if result.positive:
result.paths = dialog.GetPaths()
else:
result.paths = []
dialog.Destroy()
return result
def openSingle(parent=None, title='Open', directory='', filename='',
wildcard='All Files (*.*)|*.*', style=wx.FD_OPEN):
"""File dialog wrapper function."""
dialog = wx.FileDialog(parent, title, directory, filename,
wildcard, style)
result = DialogResults(dialog.ShowModal())
if result.positive:
result.path = dialog.GetPath()
else:
result.path = None
dialog.Destroy()
return result
def openMultiple(parent=None, title='Open', directory='', filename='',
wildcard='All Files (*.*)|*.*',
style=wx.FD_OPEN | wx.FD_MULTIPLE):
"""File dialog wrapper function."""
return fileDialog(parent, title, directory, filename, wildcard, style)
def saveSingle(parent=None, title='Save', directory='', filename='',
wildcard='All Files (*.*)|*.*',
style=wx.FD_SAVE | wx.FD_OVERWRITE_PROMPT):
"""File dialog wrapper function."""
dialog = wx.FileDialog(parent, title, directory, filename,
wildcard, style)
result = DialogResults(dialog.ShowModal())
if result.positive:
result.path = dialog.GetPath()
else:
result.path = None
dialog.Destroy()
return result
def directory(parent=None, message='Choose a directory', path='', style=0,
pos=wx.DefaultPosition, size=wx.DefaultSize):
"""Dir dialog wrapper function."""
dialog = wx.DirDialog(parent, message, path, style, pos, size)
result = DialogResults(dialog.ShowModal())
if result.positive:
result.path = dialog.GetPath()
else:
result.path = None
dialog.Destroy()
return result
def messageDialog(parent=None, message='', title='Message box',
style=wx.YES_NO | wx.CANCEL | wx.CENTRE | wx.ICON_QUESTION,
pos=wx.DefaultPosition):
"""Message dialog wrapper function."""
dialog = wx.MessageDialog(parent, message, title, style, pos)
result = DialogResults(dialog.ShowModal())
dialog.Destroy()
return result
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