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import wx

def OnUpdateUI(evt,text_id):

    # check for matching braces

    CurrentWidget = wx.FindWindowById(text_id)



    braceAtCaret = -1

    braceOpposite = -1

    charBefore = None

    caretPos = CurrentWidget.GetCurrentPos()



    if caretPos > 0:

        charBefore = CurrentWidget.GetCharAt(caretPos - 1)

        styleBefore = CurrentWidget.GetStyleAt(caretPos - 1)



    # check before

    if charBefore and chr(charBefore) in "[]{}()" and styleBefore == wx.stc.STC_P_OPERATOR:

        braceAtCaret = caretPos - 1



    # check after

    if braceAtCaret < 0:

        charAfter = CurrentWidget.GetCharAt(caretPos)

        styleAfter = CurrentWidget.GetStyleAt(caretPos)



        if charAfter and chr(charAfter) in "[]{}()" and styleAfter == wx.stc.STC_P_OPERATOR:

            braceAtCaret = caretPos



    if braceAtCaret >= 0:

        braceOpposite = CurrentWidget.BraceMatch(braceAtCaret)



    if braceAtCaret != -1  and braceOpposite == -1:

        CurrentWidget.BraceBadLight(braceAtCaret)

    else:

        CurrentWidget.BraceHighlight(braceAtCaret, braceOpposite)

        #pt = CurrentWidget.PointFromPosition(braceOpposite)

        #CurrentWidget.Refresh(True, wx.Rect(pt.x, pt.y, 5,5))

        #print pt

        #CurrentWidget.Refresh(True)



    evt.Skip()