599 lines
19 KiB
Python
599 lines
19 KiB
Python
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# Code that allows Pythonwin to pretend it is IDLE
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# (at least as far as most IDLE extensions are concerned)
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import string
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import sys
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import win32api
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import win32con
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import win32ui
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from pywin import default_scintilla_encoding
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from pywin.mfc.dialog import GetSimpleInput
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wordchars = string.ascii_uppercase + string.ascii_lowercase + string.digits
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class TextError(Exception): # When a TclError would normally be raised.
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pass
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class EmptyRange(Exception): # Internally raised.
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pass
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def GetIDLEModule(module):
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try:
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# First get it from Pythonwin it is exists.
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modname = "pywin.idle." + module
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__import__(modname)
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except ImportError as details:
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msg = (
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"The IDLE extension '%s' can not be located.\r\n\r\n"
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"Please correct the installation and restart the"
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" application.\r\n\r\n%s" % (module, details)
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)
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win32ui.MessageBox(msg)
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return None
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mod = sys.modules[modname]
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mod.TclError = TextError # A hack that can go soon!
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return mod
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# A class that is injected into the IDLE auto-indent extension.
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# It allows for decent performance when opening a new file,
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# as auto-indent uses the tokenizer module to determine indents.
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# The default AutoIndent readline method works OK, but it goes through
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# this layer of Tk index indirection for every single line. For large files
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# without indents (and even small files with indents :-) it was pretty slow!
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def fast_readline(self):
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if self.finished:
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val = ""
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else:
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if "_scint_lines" not in self.__dict__:
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# XXX - note - assumes this is only called once the file is loaded!
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self._scint_lines = self.text.edit.GetTextRange().split("\n")
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sl = self._scint_lines
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i = self.i = self.i + 1
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if i >= len(sl):
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val = ""
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else:
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val = sl[i] + "\n"
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return val.encode(default_scintilla_encoding)
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try:
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GetIDLEModule("AutoIndent").IndentSearcher.readline = fast_readline
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except AttributeError: # GetIDLEModule may return None
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pass
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# A class that attempts to emulate an IDLE editor window.
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# Construct with a Pythonwin view.
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class IDLEEditorWindow:
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def __init__(self, edit):
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self.edit = edit
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self.text = TkText(edit)
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self.extensions = {}
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self.extension_menus = {}
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def close(self):
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self.edit = self.text = None
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self.extension_menus = None
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try:
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for ext in self.extensions.values():
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closer = getattr(ext, "close", None)
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if closer is not None:
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closer()
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finally:
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self.extensions = {}
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def IDLEExtension(self, extension):
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ext = self.extensions.get(extension)
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if ext is not None:
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return ext
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mod = GetIDLEModule(extension)
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if mod is None:
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return None
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klass = getattr(mod, extension)
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ext = self.extensions[extension] = klass(self)
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# Find and bind all the events defined in the extension.
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events = [item for item in dir(klass) if item[-6:] == "_event"]
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for event in events:
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name = "<<%s>>" % (event[:-6].replace("_", "-"),)
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self.edit.bindings.bind(name, getattr(ext, event))
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return ext
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def GetMenuItems(self, menu_name):
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# Get all menu items for the menu name (eg, "edit")
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bindings = self.edit.bindings
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ret = []
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for ext in self.extensions.values():
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menudefs = getattr(ext, "menudefs", [])
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for name, items in menudefs:
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if name == menu_name:
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for text, event in [item for item in items if item is not None]:
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text = text.replace("&", "&&")
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text = text.replace("_", "&")
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ret.append((text, event))
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return ret
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######################################################################
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# The IDLE "Virtual UI" methods that are exposed to the IDLE extensions.
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#
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def askinteger(
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self, caption, prompt, parent=None, initialvalue=0, minvalue=None, maxvalue=None
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):
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while 1:
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rc = GetSimpleInput(prompt, str(initialvalue), caption)
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if rc is None:
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return 0 # Correct "cancel" semantics?
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err = None
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try:
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rc = int(rc)
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except ValueError:
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err = "Please enter an integer"
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if not err and minvalue is not None and rc < minvalue:
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err = "Please enter an integer greater then or equal to %s" % (
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minvalue,
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)
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if not err and maxvalue is not None and rc > maxvalue:
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err = "Please enter an integer less then or equal to %s" % (maxvalue,)
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if err:
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win32ui.MessageBox(err, caption, win32con.MB_OK)
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continue
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return rc
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def askyesno(self, caption, prompt, parent=None):
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return win32ui.MessageBox(prompt, caption, win32con.MB_YESNO) == win32con.IDYES
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######################################################################
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# The IDLE "Virtual Text Widget" methods that are exposed to the IDLE extensions.
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#
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# Is character at text_index in a Python string? Return 0 for
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# "guaranteed no", true for anything else.
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def is_char_in_string(self, text_index):
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# A helper for the code analyser - we need internal knowledge of
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# the colorizer to get this information
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# This assumes the colorizer has got to this point!
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text_index = self.text._getoffset(text_index)
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c = self.text.edit._GetColorizer()
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if c and c.GetStringStyle(text_index) is None:
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return 0
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return 1
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# If a selection is defined in the text widget, return
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# (start, end) as Tkinter text indices, otherwise return
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# (None, None)
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def get_selection_indices(self):
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try:
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first = self.text.index("sel.first")
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last = self.text.index("sel.last")
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return first, last
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except TextError:
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return None, None
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def set_tabwidth(self, width):
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self.edit.SCISetTabWidth(width)
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def get_tabwidth(self):
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return self.edit.GetTabWidth()
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# A class providing the generic "Call Tips" interface
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class CallTips:
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def __init__(self, edit):
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self.edit = edit
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def showtip(self, tip_text):
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self.edit.SCICallTipShow(tip_text)
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def hidetip(self):
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self.edit.SCICallTipCancel()
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########################################
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#
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# Helpers for the TkText emulation.
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def TkOffsetToIndex(offset, edit):
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lineoff = 0
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# May be 1 > actual end if we pretended there was a trailing '\n'
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offset = min(offset, edit.GetTextLength())
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line = edit.LineFromChar(offset)
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lineIndex = edit.LineIndex(line)
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return "%d.%d" % (line + 1, offset - lineIndex)
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def _NextTok(str, pos):
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# Returns (token, endPos)
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end = len(str)
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if pos >= end:
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return None, 0
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while pos < end and str[pos] in string.whitespace:
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pos = pos + 1
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# Special case for +-
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if str[pos] in "+-":
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return str[pos], pos + 1
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# Digits also a special case.
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endPos = pos
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while endPos < end and str[endPos] in string.digits + ".":
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endPos = endPos + 1
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if pos != endPos:
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return str[pos:endPos], endPos
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endPos = pos
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while endPos < end and str[endPos] not in string.whitespace + string.digits + "+-":
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endPos = endPos + 1
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if pos != endPos:
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return str[pos:endPos], endPos
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return None, 0
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def TkIndexToOffset(bm, edit, marks):
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base, nextTokPos = _NextTok(bm, 0)
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if base is None:
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raise ValueError("Empty bookmark ID!")
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if base.find(".") > 0:
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try:
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line, col = base.split(".", 2)
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if col == "first" or col == "last":
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# Tag name
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if line != "sel":
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raise ValueError("Tags arent here!")
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sel = edit.GetSel()
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if sel[0] == sel[1]:
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raise EmptyRange
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if col == "first":
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pos = sel[0]
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else:
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pos = sel[1]
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else:
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# Lines are 1 based for tkinter
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line = int(line) - 1
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if line > edit.GetLineCount():
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pos = edit.GetTextLength() + 1
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else:
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pos = edit.LineIndex(line)
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if pos == -1:
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pos = edit.GetTextLength()
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pos = pos + int(col)
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except (ValueError, IndexError):
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raise ValueError("Unexpected literal in '%s'" % base)
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elif base == "insert":
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pos = edit.GetSel()[0]
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elif base == "end":
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pos = edit.GetTextLength()
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# Pretend there is a trailing '\n' if necessary
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if pos and edit.SCIGetCharAt(pos - 1) != "\n":
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pos = pos + 1
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else:
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try:
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pos = marks[base]
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except KeyError:
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raise ValueError("Unsupported base offset or undefined mark '%s'" % base)
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while 1:
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word, nextTokPos = _NextTok(bm, nextTokPos)
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if word is None:
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break
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if word in ("+", "-"):
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num, nextTokPos = _NextTok(bm, nextTokPos)
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if num is None:
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raise ValueError("+/- operator needs 2 args")
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what, nextTokPos = _NextTok(bm, nextTokPos)
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if what is None:
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raise ValueError("+/- operator needs 2 args")
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if what[0] != "c":
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raise ValueError("+/- only supports chars")
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if word == "+":
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pos = pos + int(num)
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else:
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pos = pos - int(num)
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elif word == "wordstart":
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while pos > 0 and edit.SCIGetCharAt(pos - 1) in wordchars:
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pos = pos - 1
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elif word == "wordend":
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end = edit.GetTextLength()
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while pos < end and edit.SCIGetCharAt(pos) in wordchars:
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pos = pos + 1
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elif word == "linestart":
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while pos > 0 and edit.SCIGetCharAt(pos - 1) not in "\n\r":
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pos = pos - 1
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elif word == "lineend":
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end = edit.GetTextLength()
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while pos < end and edit.SCIGetCharAt(pos) not in "\n\r":
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pos = pos + 1
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else:
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raise ValueError("Unsupported relative offset '%s'" % word)
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return max(pos, 0) # Tkinter is tollerant of -ve indexes - we aren't
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# A class that resembles an IDLE (ie, a Tk) text widget.
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# Construct with an edit object (eg, an editor view)
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class TkText:
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def __init__(self, edit):
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self.calltips = None
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self.edit = edit
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self.marks = {}
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## def __getattr__(self, attr):
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## if attr=="tk": return self # So text.tk.call works.
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## if attr=="master": return None # ditto!
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## raise AttributeError, attr
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## def __getitem__(self, item):
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## if item=="tabs":
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## size = self.edit.GetTabWidth()
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## if size==8: return "" # Tk default
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## return size # correct semantics?
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## elif item=="font": # Used for measurements we dont need to do!
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## return "Dont know the font"
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## raise IndexError, "Invalid index '%s'" % item
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def make_calltip_window(self):
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if self.calltips is None:
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self.calltips = CallTips(self.edit)
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return self.calltips
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def _getoffset(self, index):
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return TkIndexToOffset(index, self.edit, self.marks)
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def _getindex(self, off):
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return TkOffsetToIndex(off, self.edit)
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def _fix_indexes(self, start, end):
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# first some magic to handle skipping over utf8 extended chars.
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while start > 0 and ord(self.edit.SCIGetCharAt(start)) & 0xC0 == 0x80:
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start -= 1
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while (
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end < self.edit.GetTextLength()
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and ord(self.edit.SCIGetCharAt(end)) & 0xC0 == 0x80
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):
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end += 1
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# now handling fixing \r\n->\n disparities...
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if (
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start > 0
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and self.edit.SCIGetCharAt(start) == "\n"
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and self.edit.SCIGetCharAt(start - 1) == "\r"
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):
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start = start - 1
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if (
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end < self.edit.GetTextLength()
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and self.edit.SCIGetCharAt(end - 1) == "\r"
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and self.edit.SCIGetCharAt(end) == "\n"
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):
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end = end + 1
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return start, end
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## def get_tab_width(self):
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## return self.edit.GetTabWidth()
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## def call(self, *rest):
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## # Crap to support Tk measurement hacks for tab widths
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## if rest[0] != "font" or rest[1] != "measure":
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## raise ValueError, "Unsupport call type"
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## return len(rest[5])
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## def configure(self, **kw):
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## for name, val in kw.items():
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## if name=="tabs":
|
||
|
|
## self.edit.SCISetTabWidth(int(val))
|
||
|
|
## else:
|
||
|
|
## raise ValueError, "Unsupported configuration item %s" % kw
|
||
|
|
def bind(self, binding, handler):
|
||
|
|
self.edit.bindings.bind(binding, handler)
|
||
|
|
|
||
|
|
def get(self, start, end=None):
|
||
|
|
try:
|
||
|
|
start = self._getoffset(start)
|
||
|
|
if end is None:
|
||
|
|
end = start + 1
|
||
|
|
else:
|
||
|
|
end = self._getoffset(end)
|
||
|
|
except EmptyRange:
|
||
|
|
return ""
|
||
|
|
# Simple semantic checks to conform to the Tk text interface
|
||
|
|
if end <= start:
|
||
|
|
return ""
|
||
|
|
max = self.edit.GetTextLength()
|
||
|
|
checkEnd = 0
|
||
|
|
if end > max:
|
||
|
|
end = max
|
||
|
|
checkEnd = 1
|
||
|
|
start, end = self._fix_indexes(start, end)
|
||
|
|
ret = self.edit.GetTextRange(start, end)
|
||
|
|
# pretend a trailing '\n' exists if necessary.
|
||
|
|
if checkEnd and (not ret or ret[-1] != "\n"):
|
||
|
|
ret = ret + "\n"
|
||
|
|
return ret.replace("\r", "")
|
||
|
|
|
||
|
|
def index(self, spec):
|
||
|
|
try:
|
||
|
|
return self._getindex(self._getoffset(spec))
|
||
|
|
except EmptyRange:
|
||
|
|
return ""
|
||
|
|
|
||
|
|
def insert(self, pos, text):
|
||
|
|
try:
|
||
|
|
pos = self._getoffset(pos)
|
||
|
|
except EmptyRange:
|
||
|
|
raise TextError("Empty range")
|
||
|
|
self.edit.SetSel((pos, pos))
|
||
|
|
# IDLE only deals with "\n" - we will be nicer
|
||
|
|
|
||
|
|
bits = text.split("\n")
|
||
|
|
self.edit.SCIAddText(bits[0])
|
||
|
|
for bit in bits[1:]:
|
||
|
|
self.edit.SCINewline()
|
||
|
|
self.edit.SCIAddText(bit)
|
||
|
|
|
||
|
|
def delete(self, start, end=None):
|
||
|
|
try:
|
||
|
|
start = self._getoffset(start)
|
||
|
|
if end is not None:
|
||
|
|
end = self._getoffset(end)
|
||
|
|
except EmptyRange:
|
||
|
|
raise TextError("Empty range")
|
||
|
|
# If end is specified and == start, then we must delete nothing.
|
||
|
|
if start == end:
|
||
|
|
return
|
||
|
|
# If end is not specified, delete one char
|
||
|
|
if end is None:
|
||
|
|
end = start + 1
|
||
|
|
else:
|
||
|
|
# Tk says not to delete in this case, but our control would.
|
||
|
|
if end < start:
|
||
|
|
return
|
||
|
|
if start == self.edit.GetTextLength():
|
||
|
|
return # Nothing to delete.
|
||
|
|
old = self.edit.GetSel()[0] # Lose a selection
|
||
|
|
# Hack for partial '\r\n' and UTF-8 char removal
|
||
|
|
start, end = self._fix_indexes(start, end)
|
||
|
|
self.edit.SetSel((start, end))
|
||
|
|
self.edit.Clear()
|
||
|
|
if old >= start and old < end:
|
||
|
|
old = start
|
||
|
|
elif old >= end:
|
||
|
|
old = old - (end - start)
|
||
|
|
self.edit.SetSel(old)
|
||
|
|
|
||
|
|
def bell(self):
|
||
|
|
win32api.MessageBeep()
|
||
|
|
|
||
|
|
def see(self, pos):
|
||
|
|
# Most commands we use in Scintilla actually force the selection
|
||
|
|
# to be seen, making this unnecessary.
|
||
|
|
pass
|
||
|
|
|
||
|
|
def mark_set(self, name, pos):
|
||
|
|
try:
|
||
|
|
pos = self._getoffset(pos)
|
||
|
|
except EmptyRange:
|
||
|
|
raise TextError("Empty range '%s'" % pos)
|
||
|
|
if name == "insert":
|
||
|
|
self.edit.SetSel(pos)
|
||
|
|
else:
|
||
|
|
self.marks[name] = pos
|
||
|
|
|
||
|
|
def tag_add(self, name, start, end):
|
||
|
|
if name != "sel":
|
||
|
|
raise ValueError("Only sel tag is supported")
|
||
|
|
try:
|
||
|
|
start = self._getoffset(start)
|
||
|
|
end = self._getoffset(end)
|
||
|
|
except EmptyRange:
|
||
|
|
raise TextError("Empty range")
|
||
|
|
self.edit.SetSel(start, end)
|
||
|
|
|
||
|
|
def tag_remove(self, name, start, end):
|
||
|
|
if name != "sel" or start != "1.0" or end != "end":
|
||
|
|
raise ValueError("Cant remove this tag")
|
||
|
|
# Turn the sel into a cursor
|
||
|
|
self.edit.SetSel(self.edit.GetSel()[0])
|
||
|
|
|
||
|
|
def compare(self, i1, op, i2):
|
||
|
|
try:
|
||
|
|
i1 = self._getoffset(i1)
|
||
|
|
except EmptyRange:
|
||
|
|
i1 = ""
|
||
|
|
try:
|
||
|
|
i2 = self._getoffset(i2)
|
||
|
|
except EmptyRange:
|
||
|
|
i2 = ""
|
||
|
|
return eval("%d%s%d" % (i1, op, i2))
|
||
|
|
|
||
|
|
def undo_block_start(self):
|
||
|
|
self.edit.SCIBeginUndoAction()
|
||
|
|
|
||
|
|
def undo_block_stop(self):
|
||
|
|
self.edit.SCIEndUndoAction()
|
||
|
|
|
||
|
|
|
||
|
|
######################################################################
|
||
|
|
#
|
||
|
|
# Test related code.
|
||
|
|
#
|
||
|
|
######################################################################
|
||
|
|
def TestCheck(index, edit, expected=None):
|
||
|
|
rc = TkIndexToOffset(index, edit, {})
|
||
|
|
if rc != expected:
|
||
|
|
print("ERROR: Index", index, ", expected", expected, "but got", rc)
|
||
|
|
|
||
|
|
|
||
|
|
def TestGet(fr, to, t, expected):
|
||
|
|
got = t.get(fr, to)
|
||
|
|
if got != expected:
|
||
|
|
print(
|
||
|
|
"ERROR: get(%s, %s) expected %s, but got %s"
|
||
|
|
% (repr(fr), repr(to), repr(expected), repr(got))
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def test():
|
||
|
|
import pywin.framework.editor
|
||
|
|
|
||
|
|
d = pywin.framework.editor.editorTemplate.OpenDocumentFile(None)
|
||
|
|
e = d.GetFirstView()
|
||
|
|
t = TkText(e)
|
||
|
|
e.SCIAddText("hi there how\nare you today\r\nI hope you are well")
|
||
|
|
e.SetSel((4, 4))
|
||
|
|
|
||
|
|
skip = """
|
||
|
|
TestCheck("insert", e, 4)
|
||
|
|
TestCheck("insert wordstart", e, 3)
|
||
|
|
TestCheck("insert wordend", e, 8)
|
||
|
|
TestCheck("insert linestart", e, 0)
|
||
|
|
TestCheck("insert lineend", e, 12)
|
||
|
|
TestCheck("insert + 4 chars", e, 8)
|
||
|
|
TestCheck("insert +4c", e, 8)
|
||
|
|
TestCheck("insert - 2 chars", e, 2)
|
||
|
|
TestCheck("insert -2c", e, 2)
|
||
|
|
TestCheck("insert-2c", e, 2)
|
||
|
|
TestCheck("insert-2 c", e, 2)
|
||
|
|
TestCheck("insert- 2c", e, 2)
|
||
|
|
TestCheck("1.1", e, 1)
|
||
|
|
TestCheck("1.0", e, 0)
|
||
|
|
TestCheck("2.0", e, 13)
|
||
|
|
try:
|
||
|
|
TestCheck("sel.first", e, 0)
|
||
|
|
print "*** sel.first worked with an empty selection"
|
||
|
|
except TextError:
|
||
|
|
pass
|
||
|
|
e.SetSel((4,5))
|
||
|
|
TestCheck("sel.first- 2c", e, 2)
|
||
|
|
TestCheck("sel.last- 2c", e, 3)
|
||
|
|
"""
|
||
|
|
# Check EOL semantics
|
||
|
|
e.SetSel((4, 4))
|
||
|
|
TestGet("insert lineend", "insert lineend +1c", t, "\n")
|
||
|
|
e.SetSel((20, 20))
|
||
|
|
TestGet("insert lineend", "insert lineend +1c", t, "\n")
|
||
|
|
e.SetSel((35, 35))
|
||
|
|
TestGet("insert lineend", "insert lineend +1c", t, "\n")
|
||
|
|
|
||
|
|
|
||
|
|
class IDLEWrapper:
|
||
|
|
def __init__(self, control):
|
||
|
|
self.text = control
|
||
|
|
|
||
|
|
|
||
|
|
def IDLETest(extension):
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
|
||
|
|
modname = "pywin.idle." + extension
|
||
|
|
__import__(modname)
|
||
|
|
mod = sys.modules[modname]
|
||
|
|
mod.TclError = TextError
|
||
|
|
klass = getattr(mod, extension)
|
||
|
|
|
||
|
|
# Create a new Scintilla Window.
|
||
|
|
import pywin.framework.editor
|
||
|
|
|
||
|
|
d = pywin.framework.editor.editorTemplate.OpenDocumentFile(None)
|
||
|
|
v = d.GetFirstView()
|
||
|
|
fname = os.path.splitext(__file__)[0] + ".py"
|
||
|
|
v.SCIAddText(open(fname).read())
|
||
|
|
d.SetModifiedFlag(0)
|
||
|
|
r = klass(IDLEWrapper(TkText(v)))
|
||
|
|
return r
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
test()
|