Eliminate exess spacings in many doc pages

49 files changed, 296 insertions, 296 deletions

diff --git a/doc/ConfigWidg.3 b/doc/ConfigWidg.3
index ddc1030..92be073 100644
--- a/doc/ConfigWidg.3
+++ b/doc/ConfigWidg.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_ConfigureWidget 3 4.1 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -174,7 +174,7 @@ legal values for \fItype\fR, and the corresponding actions, are:
 \fBTK_CONFIG_ACTIVE_CURSOR\fR
 The value
 must be an ASCII string identifying a cursor in a form
-suitable for passing to \fBTk_GetCursor\fR. 
+suitable for passing to \fBTk_GetCursor\fR.
 The value is converted to a \fBTk_Cursor\fR by calling
 \fBTk_GetCursor\fR and the result is stored in the target.
 In addition, the resulting cursor is made the active cursor
diff --git a/doc/CrtSelHdlr.3 b/doc/CrtSelHdlr.3
index 2aeffa9..2292ccc 100644
--- a/doc/CrtSelHdlr.3
+++ b/doc/CrtSelHdlr.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_CreateSelHandler 3 4.0 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -44,7 +44,7 @@ requestor.
 \fBTk_CreateSelHandler\fR arranges for a particular procedure
 (\fIproc\fR) to be called whenever \fIselection\fR is owned by
 \fItkwin\fR and the selection contents are requested in the
-form given by \fItarget\fR. 
+form given by \fItarget\fR.
 \fITarget\fR should be one of
 the entries defined in the left column of Table 2 of the
 X Inter-Client Communication Conventions Manual (ICCCM) or
diff --git a/doc/CrtWindow.3 b/doc/CrtWindow.3
index 8f44545..b254460 100644
--- a/doc/CrtWindow.3
+++ b/doc/CrtWindow.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_CreateWindow 3 4.2 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -52,7 +52,7 @@ Name of new window, specified as path name within application
 .BE
 .SH DESCRIPTION
 .PP
-The procedures \fBTk_CreateWindow\fR, 
+The procedures \fBTk_CreateWindow\fR,
 \fBTk_CreateAnonymousWindow\fR, and \fBTk_CreateWindowFromPath\fR
 are used to create new windows for
 use in Tk-based applications.  Each of the procedures returns a token
diff --git a/doc/FontId.3 b/doc/FontId.3
index c79b89f..9d35ae6 100644
--- a/doc/FontId.3
+++ b/doc/FontId.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_FontId 3 8.0 Tk "Tk Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tk_FontId, Tk_GetFontMetrics, Tk_PostscriptFontName \- accessor functions for 
+Tk_FontId, Tk_GetFontMetrics, Tk_PostscriptFontName \- accessor functions for
 fonts
 .SH SYNOPSIS
 .nf
@@ -37,7 +37,7 @@ Postscript font that corresponds to \fItkfont\fR will be appended.
 .PP
 Given a \fItkfont\fR, \fBTk_FontId\fR returns the token that should be
 selected into an XGCValues structure in order to construct a graphics
-context that can be used to draw text in the specified font.  
+context that can be used to draw text in the specified font.
 .PP
 \fBTk_GetFontMetrics\fR computes the ascent, descent, and linespace of the
 \fItkfont\fR in pixels and stores those values in the structure pointer to by
@@ -45,7 +45,7 @@ context that can be used to draw text in the specified font.
 multiple lines of text, to align the baselines of text in different
 fonts, and to vertically align text in a given region.  See the
 documentation for the \fBfont\fR command for definitions of the terms
-ascent, descent, and linespace, used in font metrics.  
+ascent, descent, and linespace, used in font metrics.
 .PP
 \fBTk_PostscriptFontName\fR maps a \fItkfont\fR to the corresponding
 Postscript font name that should be used when printing.  The return value
@@ -56,10 +56,10 @@ appended to \fIdsPtr\fR.  \fIDsPtr\fR must refer to an initialized
 Postscript printer, the
 following screen font families should print correctly:
 .IP
-\fBAvant Garde\fR, \fBArial\fR, \fBBookman\fR, \fBCourier\fR, 
+\fBAvant Garde\fR, \fBArial\fR, \fBBookman\fR, \fBCourier\fR,
 \fBCourier New\fR, \fBGeneva\fR, \fBHelvetica\fR, \fBMonaco\fR,
 \fBNew Century Schoolbook\fR, \fBNew York\fR, \fBPalatino\fR, \fBSymbol\fR,
-\fBTimes\fR, \fBTimes New Roman\fR, \fBZapf Chancery\fR, and 
+\fBTimes\fR, \fBTimes New Roman\fR, \fBZapf Chancery\fR, and
 \fBZapf Dingbats\fR.
 .PP
 Any other font families may not print correctly because the computed
diff --git a/doc/GetColor.3 b/doc/GetColor.3
index 9d07d95..15254aa 100644
--- a/doc/GetColor.3
+++ b/doc/GetColor.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_AllocColorFromObj 3 8.1 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -127,7 +127,7 @@ This package maintains a database
 of all the colors currently in use.
 If the same color is requested multiple times from
 \fBTk_GetColor\fR or \fBTk_AllocColorFromObj\fR (e.g. by different
-windows), or if the 
+windows), or if the
 same intensities are requested multiple times from
 \fBTk_GetColorByValue\fR, then existing pixel values will
 be re-used.  Re-using an existing pixel avoids any interaction
diff --git a/doc/GetCursor.3 b/doc/GetCursor.3
index 8526a47..403c05e 100644
--- a/doc/GetCursor.3
+++ b/doc/GetCursor.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_AllocCursorFromObj 3 8.1 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -118,7 +118,7 @@ in preference to black and white cursors.
 In this form, \fIsourceName\fR and \fImaskName\fR are the names of
 files describing cursors for the cursor's source bits and mask.
 Each file must be in standard X11 cursor format.
-\fIFgColor\fR and \fIbgColor\fR 
+\fIFgColor\fR and \fIbgColor\fR
 indicate the colors to use for the
 cursor, in any of the forms acceptable to \fBTk_GetColor\fR.  This
 form of the command will not work on Macintosh or Windows computers.
diff --git a/doc/GetFont.3 b/doc/GetFont.3
index cf02f00..0504916 100644
--- a/doc/GetFont.3
+++ b/doc/GetFont.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_AllocFontFromObj 3 8.1 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -14,19 +14,19 @@ Tk_AllocFontFromObj, Tk_GetFont, Tk_GetFontFromObj, Tk_NameOfFont, Tk_FreeFontFr
 .nf
 \fB#include <tk.h>\fR
 .sp
-Tk_Font 
+Tk_Font
 \fBTk_AllocFontFromObj(\fIinterp, tkwin, objPtr\fB)\fR
 .sp
-Tk_Font 
-\fBTk_GetFont(\fIinterp, tkwin, string\fB)\fR 
+Tk_Font
+\fBTk_GetFont(\fIinterp, tkwin, string\fB)\fR
 .sp
-Tk_Font 
+Tk_Font
 \fBTk_GetFontFromObj(\fItkwin, objPtr\fB)\fR
 .sp
 const char *
 \fBTk_NameOfFont(\fItkfont\fB)\fR
 .sp
-Tk_Font 
+Tk_Font
 \fBTk_FreeFontFromObj(\fItkwin, objPtr\fB)\fR
 .sp
 void
@@ -55,7 +55,7 @@ returns a token that represents the font.  The return value can be used
 in subsequent calls to procedures such as \fBTk_GetFontMetrics\fR,
 \fBTk_MeasureChars\fR, and \fBTk_FreeFont\fR.  The Tk_Font token
 will remain valid until
-\fBTk_FreeFontFromObj\fR or \fBTk_FreeFont\fR is called to release it. 
+\fBTk_FreeFontFromObj\fR or \fBTk_FreeFont\fR is called to release it.
 \fIObjPtr\fR can contain either a symbolic name or a font description; see
 the documentation for the \fBfont\fR command for a description of the
 valid formats.  If \fBTk_AllocFontFromObj\fR is unsuccessful (because,
diff --git a/doc/MapWindow.3 b/doc/MapWindow.3
index 8abce64..a3c6296 100644
--- a/doc/MapWindow.3
+++ b/doc/MapWindow.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_MapWindow 3 "" Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -35,9 +35,9 @@ deferred window creation.
 from the screen.
 .PP
 If \fItkwin\fR is a child window (i.e. \fBTk_CreateWindow\fR was
-used to create a child window), then event handlers interested in map 
-and unmap events are invoked immediately.  If \fItkwin\fR is not an 
-internal window, then the event handlers will be invoked later, after 
+used to create a child window), then event handlers interested in map
+and unmap events are invoked immediately.  If \fItkwin\fR is not an
+internal window, then the event handlers will be invoked later, after
 X has seen the request and returned an event for it.
 .PP
 These procedures should be used in place of the X procedures
diff --git a/doc/MeasureChar.3 b/doc/MeasureChar.3
index 7433451..3959978 100644
--- a/doc/MeasureChar.3
+++ b/doc/MeasureChar.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_MeasureChars 3 8.1 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -32,7 +32,7 @@ returned by a previous call to \fBTk_GetFont\fR.
 Text to be measured or displayed.  Need not be null terminated.  Any
 non-printing meta-characters in the string (such as tabs, newlines, and
 other control characters) will be measured or displayed in a
-platform-dependent manner.  
+platform-dependent manner.
 .AP int numBytes in
 The maximum number of bytes to consider when measuring or drawing
 \fIstring\fR.  Must be greater than or equal to 0.
@@ -60,11 +60,11 @@ Display on which to draw.
 .AP Drawable drawable in
 Window or pixmap in which to draw.
 .AP GC gc in
-Graphics context for drawing characters.  The font selected into this GC 
+Graphics context for drawing characters.  The font selected into this GC
 must be the same as the \fItkfont\fR.
 .AP int "x, y" in
 Coordinates at which to place the left edge of the baseline when displaying
-\fIstring\fR.  
+\fIstring\fR.
 .AP int firstByte in
 The index of the first byte of the first character to underline in the
 \fIstring\fR.  Underlining begins at the left edge of this character.
@@ -80,7 +80,7 @@ single-line strings.  To measure and display single-font, multi-line,
 justified text, refer to the documentation for \fBTk_ComputeTextLayout\fR.
 There is no programming interface in the core of Tk that supports
 multi-font, multi-line text; support for that behavior must be built on
-top of simpler layers.  
+top of simpler layers.
 Note that the interfaces described here are
 byte-oriented not character-oriented, so index values coming from Tcl
 scripts need to be converted to byte offsets using the
@@ -95,7 +95,7 @@ escape sequences, while under Windows and Macintosh hollow or solid boxes
 may be substituted.  Refer to the documentation for
 \fBTk_ComputeTextLayout\fR for a programming interface that supports the
 platform-independent expansion of tab characters into columns and
-newlines/returns into multi-line text.  
+newlines/returns into multi-line text.
 .PP
 \fBTk_MeasureChars\fR is used both to compute the length of a given
 string and to compute how many characters from a string fit in a given
@@ -106,12 +106,12 @@ value will be \fInumBytes\fR.  \fI*lengthPtr\fR is filled with the computed
 width, in pixels, of the portion of the string that was measured.  For
 example, if the return value is 5, then \fI*lengthPtr\fR is filled with the
 distance between the left edge of \fIstring\fR[0] and the right edge of
-\fIstring\fR[4]. 
+\fIstring\fR[4].
 .PP
 \fBTk_TextWidth\fR is a wrapper function that provides a simpler interface
 to the \fBTk_MeasureChars\fR function.  The return value is how much
 space in pixels the given \fIstring\fR needs.
-.PP 
+.PP
 \fBTk_DrawChars\fR draws the \fIstring\fR at the given location in the
 given \fIdrawable\fR.
 .PP
@@ -120,7 +120,7 @@ given \fIstring\fR.  It does not draw the characters (which are assumed to
 have been displayed previously by \fBTk_DrawChars\fR); it just draws the
 underline.  This procedure is used to underline a few characters without
 having to construct an underlined font.  To produce natively underlined
-text, the appropriate underlined font should be constructed and used. 
+text, the appropriate underlined font should be constructed and used.
 .SH "SEE ALSO"
 font(n), FontId(3)
 .SH KEYWORDS
diff --git a/doc/TextLayout.3 b/doc/TextLayout.3
index 3863ee7..5729a44 100644
--- a/doc/TextLayout.3
+++ b/doc/TextLayout.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_ComputeTextLayout 3 8.1 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -48,7 +48,7 @@ have been returned by a previous call to \fBTk_GetFont\fR.
 .AP "const char" *string in
 Potentially multi-line string whose dimensions are to be computed and
 stored in the text layout.  The \fIstring\fR must remain valid for the
-lifetime of the text layout.  
+lifetime of the text layout.
 .AP int numChars in
 The number of characters to consider from \fIstring\fR.  If
 \fInumChars\fR is less than 0, then assumes \fIstring\fR is null
@@ -77,7 +77,7 @@ measured and displayed in a platform-dependent manner as described in
 \fBTk_MeasureChars\fR, and will not have any special behaviors.
 .AP int *widthPtr out
 If non-NULL, filled with either the width, in pixels, of the widest
-line in the text layout, or the width, in pixels, of the bounding box for the 
+line in the text layout, or the width, in pixels, of the bounding box for the
 character specified by \fIindex\fR.
 .AP int *heightPtr out
 If non-NULL, filled with either the total height, in pixels, of all
@@ -101,7 +101,7 @@ text layout when it is being drawn, or the coordinates of a point (with
 respect to the upper-left hand corner of the text layout) to check
 against the text layout.
 .AP int firstChar in
-The index of the first character to draw from the given text layout.  
+The index of the first character to draw from the given text layout.
 The number 0 means to draw from the beginning.
 .AP int lastChar in
 The index of the last character up to which to draw.  The character
@@ -119,7 +119,7 @@ for the character specified by \fIindex\fR.  Either or both \fIxPtr\fR
 and \fIyPtr\fR may be NULL, in which case the corresponding value
 is not calculated.
 .AP int "width, height" in
-Specifies the width and height, in pixels, of the rectangular area to 
+Specifies the width and height, in pixels, of the rectangular area to
 compare for intersection against the text layout.
 .AP Tcl_Interp *interp out
 Postscript code that will print the text layout is appended to
@@ -132,7 +132,7 @@ justified text.  To measure and display simple single-font, single-line
 strings, refer to the documentation for \fBTk_MeasureChars\fR.  There is
 no programming interface in the core of Tk that supports multi-font,
 multi-line text; support for that behavior must be built on top of
-simpler layers.  
+simpler layers.
 Note that unlike the lower level text display routines, the functions
 described here all operate on character-oriented lengths and indices
 rather than byte-oriented values.  See the description of
@@ -150,11 +150,11 @@ returns a Tk_TextLayout token that holds this information.  This token is
 used in subsequent calls to procedures such as \fBTk_DrawTextLayout\fR,
 \fBTk_DistanceToTextLayout\fR, and \fBTk_FreeTextLayout\fR.  The
 \fIstring\fR and \fItkfont\fR used when computing the layout must remain
-valid for the lifetime of this token.  
+valid for the lifetime of this token.
 .PP
 \fBTk_FreeTextLayout\fR is called to release the storage associated with
 \fIlayout\fR when it is no longer needed.  A \fIlayout\fR should not be used
-in any other text layout procedures once it has been released. 
+in any other text layout procedures once it has been released.
 .PP
 \fBTk_DrawTextLayout\fR uses the information in \fIlayout\fR to display a
 single-font, multi-line, justified string of text at the specified location.
@@ -191,7 +191,7 @@ placeholder character.
 \fBTk_CharBbox\fR uses the information in \fIlayout\fR to return the
 bounding box for the character specified by \fIindex\fR.  The width of the
 bounding box is the advance width of the character, and does not include any
-left or right bearing.  Any character that extends partially outside of 
+left or right bearing.  Any character that extends partially outside of
 \fIlayout\fR is considered to be truncated at the edge.  Any character
 that would be located completely outside of \fIlayout\fR is considered to
 be zero-width and pegged against the edge.  The height of the bounding
@@ -264,13 +264,13 @@ much as fits placed on the line and the rest on subsequent line(s).  If
 \fIwrapLength\fR is so small that not even one character can fit on a
 given line, the \fIwrapLength\fR is ignored for that line and one
 character will be placed on the line anyhow.  When wrapping is turned
-off, only newline/return characters may cause a line break.  
+off, only newline/return characters may cause a line break.
 .PP
 When a text layout has been created using an underlined \fItkfont\fR,
 then any space characters that occur at the end of individual lines,
-newlines/returns, and tabs will not be displayed underlined when 
+newlines/returns, and tabs will not be displayed underlined when
 \fBTk_DrawTextLayout\fR is called, because those characters are never
 actually drawn \- they are merely placeholders maintained in the
-\fIlayout\fR.  
+\fIlayout\fR.
 .SH KEYWORDS
 font
diff --git a/doc/Tk_Main.3 b/doc/Tk_Main.3
index a1bb149..ea5f771 100644
--- a/doc/Tk_Main.3
+++ b/doc/Tk_Main.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_Main 3 4.0 Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -29,7 +29,7 @@ The value for this argument is usually \fBTcl_AppInit\fR.
 .SH DESCRIPTION
 .PP
 \fBTk_Main\fR acts as the main program for most Tk-based applications.
-Starting with Tk 4.0 it is not called \fBmain\fR anymore because it 
+Starting with Tk 4.0 it is not called \fBmain\fR anymore because it
 is part of the Tk library and having a function \fBmain\fR
 in a library (particularly a shared library) causes problems on many
 systems.
diff --git a/doc/WindowId.3 b/doc/WindowId.3
index 6d55dc0..f937963 100644
--- a/doc/WindowId.3
+++ b/doc/WindowId.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tk_WindowId 3 "8.4" Tk "Tk Library Procedures"
 .so man.macros
 .BS
@@ -168,7 +168,7 @@ the window's minimum requested size.  These values correspond to the last
 call to \fBTk_SetMinimumRequestSize\fR for \fItkwin\fR.
 .PP
 \fBTk_InternalBorderLeft\fR, \fBTk_InternalBorderRight\fR,
-\fBTk_InternalBorderTop\fR and \fBTk_InternalBorderBottom\fR 
+\fBTk_InternalBorderTop\fR and \fBTk_InternalBorderBottom\fR
 return the width of one side of the internal border
 that has been requested for \fItkwin\fR, or 0 if no internal border was
 requested.  The return value is simply the last value passed to
diff --git a/doc/button.n b/doc/button.n
index e9a45a3..233feb6 100644
--- a/doc/button.n
+++ b/doc/button.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH button n 4.4 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -69,7 +69,7 @@ In this state the \fB\-disabledforeground\fR and
 Specifies a desired width for the button.
 If an image or bitmap is being displayed in the button then the value is in
 screen units (i.e. any of the forms acceptable to \fBTk_GetPixels\fR).
-For a text button (no image or with \fB\-compound none\fR) then the width 
+For a text button (no image or with \fB\-compound none\fR) then the width
 specifies how much space in characters to allocate for the text label.
 If the width is negative then this specifies a minimum width.
 If this option is not specified, the button's desired width is computed
@@ -96,7 +96,7 @@ one of the characters may optionally be underlined using the
 \fB\-underline\fR option.
 It can display itself in either of three different ways, according
 to
-the \fB\-state\fR option; 
+the \fB\-state\fR option;
 it can be made to appear raised, sunken, or flat;
 and it can be made to flash.  When a user invokes the
 button (by pressing mouse button 1 with the cursor over the
diff --git a/doc/checkbutton.n b/doc/checkbutton.n
index 2e6f840..bfefca4 100644
--- a/doc/checkbutton.n
+++ b/doc/checkbutton.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH checkbutton n 4.4 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -52,7 +52,7 @@ and setting \fB\-indicatoron\fR to false and \fB\-overrelief\fR to
 the effect is achieved
 of having a flat button that raises on mouse-over and which is
 depressed when activated.  This is the behavior typically exhibited by
-the Bold, Italic, and Underline checkbuttons on the toolbar of a 
+the Bold, Italic, and Underline checkbuttons on the toolbar of a
 word-processor, for example.
 .OP \-offvalue offValue Value
 Specifies value to store in the button's associated variable whenever
diff --git a/doc/chooseDirectory.n b/doc/chooseDirectory.n
index 86c593d..8528ddb 100644
--- a/doc/chooseDirectory.n
+++ b/doc/chooseDirectory.n
@@ -1,7 +1,7 @@
 '\"
 '\" Copyright (c) 1998-2000 by Scriptics Corporation.
 '\" All rights reserved.
-'\" 
+'\"
 .TH tk_chooseDirectory n 8.3 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -20,7 +20,7 @@ possible as command line arguments:
 \fB\-initialdir\fR \fIdirname\fR
 Specifies that the directories in \fIdirectory\fR should be displayed
 when the dialog pops up. If this parameter is not specified,
-the initial directory defaults to the current working directory 
+the initial directory defaults to the current working directory
 on non-Windows systems and on Windows systems prior to Vista.
 On Vista and later systems, the initial directory defaults to the last
 user-selected directory for the application. If the
diff --git a/doc/clipboard.n b/doc/clipboard.n
index 374cbd1..6f047dd 100644
--- a/doc/clipboard.n
+++ b/doc/clipboard.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH clipboard n 8.4 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -17,7 +17,7 @@ clipboard \- Manipulate Tk clipboard
 .SH DESCRIPTION
 .PP
 This command provides a Tcl interface to the Tk clipboard,
-which stores data for later retrieval using the selection mechanism 
+which stores data for later retrieval using the selection mechanism
 (via the \fB\-selection CLIPBOARD\fR option).
 In order to copy data into the clipboard, \fBclipboard clear\fR must
 be called, followed by a sequence of one or more calls to \fBclipboard
@@ -52,7 +52,7 @@ Table 2 of the ICCCM), and defaults to \fBSTRING\fR.  If \fIformat\fR is
 divided into fields separated by white space; each field is converted
 to its atom value, and the 32-bit atom value is transmitted instead of
 the atom name.  For any other \fIformat\fR,  \fIdata\fR is divided
-into fields separated by white space and each 
+into fields separated by white space and each
 field is converted to a 32-bit integer; an array of integers is
 transmitted to the selection requester.  Note that strings passed to
 \fBclipboard append\fR are concatenated before conversion, so the
diff --git a/doc/event.n b/doc/event.n
index 7a3cfca..12433cb 100644
--- a/doc/event.n
+++ b/doc/event.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH event n 8.3 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -172,7 +172,7 @@ one of \fBNotifyNormal\fR, \fBNotifyGrab\fR, \fBNotifyUngrab\fR, or
 \fBNotifyWhileGrabbed\fR.
 Valid for \fBEnter\fR, \fBLeave\fR, \fBFocusIn\fR, and
 \fBFocusOut\fR events.
-Corresponds to the \fB%m\fR substitution for binding scripts.  
+Corresponds to the \fB%m\fR substitution for binding scripts.
 .TP
 \fB\-override\fI boolean\fR
 \fIBoolean\fR must be a boolean value;  it specifies the
@@ -224,7 +224,7 @@ Corresponds to the \fB%#\fR substitution for binding scripts.
 For \fBKeyPress\fR, \fBKeyRelease\fR, \fBButtonPress\fR,
 \fBButtonRelease\fR, \fBEnter\fR, \fBLeave\fR, and \fBMotion\fR events
 it must be an integer value.
-For \fBVisibility\fR events it must be one of \fBVisibilityUnobscured\fR, 
+For \fBVisibility\fR events it must be one of \fBVisibilityUnobscured\fR,
 \fBVisibilityPartiallyObscured\fR, or \fBVisibilityFullyObscured\fR.
 This option overrides any modifiers such as \fBMeta\fR or \fBControl\fR
 specified in the base \fIevent\fR.
@@ -302,9 +302,9 @@ If \fIWindow\fR is empty the coordinate is relative to the
 screen, and this option corresponds to the \fB%Y\fR substitution
 for binding scripts.
 .PP
-Any options that are not specified when generating an event are filled 
-with the value 0, except for \fIserial\fR, which is filled with the 
-next X event serial number.  
+Any options that are not specified when generating an event are filled
+with the value 0, except for \fIserial\fR, which is filled with the
+next X event serial number.
 .SH "PREDEFINED VIRTUAL EVENTS"
 .PP
 Tk defines the following virtual events for the purposes of
@@ -540,7 +540,7 @@ will be invoked, because a physical event is considered
 more specific than a virtual event, all other things being equal.
 However, when the user types Meta-Control-y the
 \fB<<Paste>>\fR binding will be invoked, because the
-\fBMeta\fR modifier in the physical pattern associated with the 
+\fBMeta\fR modifier in the physical pattern associated with the
 virtual binding is more specific than the \fB<Control-y\fR> sequence for
 the physical event.
 .PP
@@ -560,7 +560,7 @@ bind Entry <Control-y> {}
 .PP
 the behavior will change such in two ways.  First, the shadowed
 \fB<<Paste>>\fR binding will emerge.
-Typing Control-y will no longer invoke the \fB<Control-y>\fR binding, 
+Typing Control-y will no longer invoke the \fB<Control-y>\fR binding,
 but instead invoke the virtual event \fB<<Paste>>\fR.  Second,
 pressing the F6 key will now also invoke the \fB<<Paste>>\fR binding.
 .SS "MOVING THE MOUSE POINTER"
diff --git a/doc/font.n b/doc/font.n
index 49d8aad..72f9270 100644
--- a/doc/font.n
+++ b/doc/font.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH font n 8.0 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -38,7 +38,7 @@ that character, which will be different from the base font if the base
 font does not contain the given character.  If \fIchar\fR may be a hyphen, it
 should be preceded by \fB\-\|\-\fR to distinguish it from a misspelled
 \fIoption\fR.
-.TP 
+.TP
 \fBfont configure \fIfontname\fR ?\fIoption\fR? ?\fIvalue option value ...\fR?
 .
 Query or modify the desired attributes for the named font called
@@ -88,7 +88,7 @@ omitted, it defaults to the main window.
 Measures the amount of space the string \fItext\fR would use in the given
 \fIfont\fR when displayed in \fIwindow\fR.  \fIfont\fR is a font description;
 see \fBFONT DESCRIPTIONS\fR below.  If the \fIwindow\fR argument is
-omitted, it 
+omitted, it
 defaults to the main window.  The return value is the total width in pixels
 of \fItext\fR, not including the extra pixels used by highly exaggerated
 characters such as cursive
diff --git a/doc/getOpenFile.n b/doc/getOpenFile.n
index f5e92ff..39bce41 100644
--- a/doc/getOpenFile.n
+++ b/doc/getOpenFile.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH tk_getOpenFile n 4.2 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -65,8 +65,8 @@ discussion on the contents of \fIfilePatternList\fR.
 \fB\-initialdir\fR \fIdirectory\fR
 .
 Specifies that the files in \fIdirectory\fR should be displayed
-when the dialog pops up. If this parameter is not specified, 
-the initial directory defaults to the current working directory 
+when the dialog pops up. If this parameter is not specified,
+the initial directory defaults to the current working directory
 on non-Windows systems and on Windows systems prior to Vista.
 On Vista and later systems, the initial directory defaults to the last
 user-selected directory for the application. If the
@@ -95,7 +95,7 @@ turns the file dialog into a sheet attached to the parent window.
 \fB\-title\fR \fItitleString\fR
 .
 Specifies a string to display as the title of the dialog box. If this
-option is not specified, then a default title is displayed. 
+option is not specified, then a default title is displayed.
 .TP
 \fB\-typevariable\fR \fIvariableName\fR
 .
diff --git a/doc/listbox.n b/doc/listbox.n
index 0f263b4..66b75b9 100644
--- a/doc/listbox.n
+++ b/doc/listbox.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH listbox n 8.4 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -229,7 +229,7 @@ list.  Returns an empty string.
 \fIpathName \fBitemcget \fIindex option\fR
 .
 Returns the current value of the item configuration option given
-by \fIoption\fR. \fIOption\fR may have any of the values accepted 
+by \fIoption\fR. \fIOption\fR may have any of the values accepted
 by the \fBitemconfigure\fR command.
 .TP
 \fIpathName \fBitemconfigure \fIindex\fR ?\fIoption\fR? ?\fIvalue\fR? ?\fIoption value ...\fR?
@@ -249,7 +249,7 @@ are currently supported for items:
 .TP
 \fB\-background \fIcolor\fR
 .
-\fIColor\fR specifies the background color to use when displaying the 
+\fIColor\fR specifies the background color to use when displaying the
 item. It may have any of the forms accepted by \fBTk_GetColor\fR.
 .TP
 \fB\-foreground \fIcolor\fR
diff --git a/doc/loadTk.n b/doc/loadTk.n
index d4ec51e..3673e98 100644
--- a/doc/loadTk.n
+++ b/doc/loadTk.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH "Safe Tk" n 8.0 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -11,7 +11,7 @@
 .SH NAME
 safe::loadTk \- Load Tk into a safe interpreter.
 .SH SYNOPSIS
-\fBsafe::loadTk \fIslave\fR ?\fB\-use\fR \fIwindowId\fR? ?\fB\-display\fR \fIdisplayName\fR? 
+\fBsafe::loadTk \fIslave\fR ?\fB\-use\fR \fIwindowId\fR? ?\fB\-display\fR \fIdisplayName\fR?
 .BE
 .SH DESCRIPTION
 .PP
diff --git a/doc/menu.n b/doc/menu.n
index 1067f38..ed1bb33 100644
--- a/doc/menu.n
+++ b/doc/menu.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH menu n 4.1 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -269,8 +269,8 @@ are appended to the standard Help menu of the user's menubar whenever
 the window's menubar is in front. The first items in the menu
 are provided by Mac OS X.
 .PP
-When Tk sees a System menu on Windows, its items are appended to the 
-system menu that the menubar is attached to. This menu is tied to the 
+When Tk sees a System menu on Windows, its items are appended to the
+system menu that the menubar is attached to. This menu is tied to the
 application icon and can be invoked with the mouse or by typing
 Alt+Spacebar.  Due to limitations in the Windows API, any font changes,
 colors, images, bitmaps, or tearoff images will not appear in the
@@ -676,7 +676,7 @@ option for the menu along with the \fB\-activebackground\fR option from
 the entry.  Disabled state means that the entry
 should be insensitive:  the default bindings will refuse to activate
 or invoke the entry.
-In this state the entry is displayed according to the 
+In this state the entry is displayed according to the
 \fB\-disabledforeground\fR option for the menu and the
 \fB\-background\fR option from the entry.
 This option is not available for separator entries.
diff --git a/doc/options.n b/doc/options.n
index 36937b1..738a1c6 100644
--- a/doc/options.n
+++ b/doc/options.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH options n 4.4 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -268,7 +268,7 @@ traversal (e.g., Tab and Shift-Tab).
 Before setting the focus to a window, the traversal scripts
 consult the value of the \fB\-takefocus\fR option.
 A value of \fB0\fR means that the window should be skipped entirely
-during keyboard traversal. 
+during keyboard traversal.
 \fB1\fR means that the window should receive the input
 focus as long as it is viewable (it and all of its ancestors are mapped).
 An empty value for the option means that the traversal scripts make
@@ -278,7 +278,7 @@ disabled, if it has no key bindings, or if it is not viewable.
 If the value has any other form, then the traversal scripts take
 the value, append the name of the window to it (with a separator space),
 and evaluate the resulting string as a Tcl script.
-The script must return \fB0\fR, \fB1\fR, or an empty string:  a 
+The script must return \fB0\fR, \fB1\fR, or an empty string:  a
 \fB0\fR or \fB1\fR value specifies whether the window will receive
 the input focus, and an empty string results in the default decision
 described above.
diff --git a/doc/panedwindow.n b/doc/panedwindow.n
index e2c954a..fcfebf4 100644
--- a/doc/panedwindow.n
+++ b/doc/panedwindow.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH panedwindow n 8.4 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -151,7 +151,7 @@ Remove the proxy from the display.
 .TP
 \fIpathName \fBproxy place \fIx y\fR
 .
-Place the proxy at the given \fIx\fR and \fIy\fR coordinates.  
+Place the proxy at the given \fIx\fR and \fIy\fR coordinates.
 .RE
 .TP
 \fIpathName \fBsash \fR?\fIargs\fR?
@@ -239,13 +239,13 @@ dimension for vertical panedwindows.  May be any value accepted by
 \fB\-padx \fIn\fR
 .
 Specifies a non-negative value indicating how much extra space to
-leave on each side of the window in the X-direction.  The value may 
+leave on each side of the window in the X-direction.  The value may
 have any of the forms accepted by \fBTk_GetPixels\fR.
 .TP
 \fB\-pady \fIn\fR
 .
 Specifies a non-negative value indicating how much extra space to
-leave on each side of the window in the Y-direction.  The value may 
+leave on each side of the window in the Y-direction.  The value may
 have any of the forms accepted by \fBTk_GetPixels\fR.
 .TP
 \fB\-sticky \fIstyle\fR
diff --git a/doc/radiobutton.n b/doc/radiobutton.n
index 557b42c..c79aa23 100644
--- a/doc/radiobutton.n
+++ b/doc/radiobutton.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH radiobutton n 4.4 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -59,10 +59,10 @@ By setting this option to
 .QW flat
 and setting \fB\-indicatoron\fR to false and \fB\-overrelief\fR to
 .QW raised ,
-the effect is achieved 
+the effect is achieved
 of having a flat button that raises on mouse-over and which is
 depressed when activated.  This is the behavior typically exhibited by
-the Align-Left, Align-Right, and Center radiobuttons on the toolbar of a 
+the Align-Left, Align-Right, and Center radiobuttons on the toolbar of a
 word-processor, for example.
 .OP \-overrelief overRelief OverRelief
 Specifies an alternative relief for the radiobutton, to be used when the
diff --git a/doc/scale.n b/doc/scale.n
index 7bc5c59..0504b4b 100644
--- a/doc/scale.n
+++ b/doc/scale.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH scale n 4.1 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -209,7 +209,7 @@ the horizontal behavior is described in parentheses.
 .IP [1]
 If button 1 is pressed in the trough, the scale's value will
 be incremented or decremented by the value of the \fB\-resolution\fR
-option so that the slider moves in the direction of the cursor. 
+option so that the slider moves in the direction of the cursor.
 If the button is held down, the action auto-repeats.
 .IP [2]
 If button 1 is pressed over the slider, the slider can be dragged
diff --git a/doc/selection.n b/doc/selection.n
index e06a716..f5bb660 100644
--- a/doc/selection.n
+++ b/doc/selection.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH selection n 8.1 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -36,7 +36,7 @@ atom name such as \fBPRIMARY\fR or \fBCLIPBOARD\fR; see the Inter-Client
 Communication Conventions Manual for complete details.
 \fISelection\fR defaults to \fBPRIMARY\fR and \fIwindow\fR defaults to
 .QW . .
-Returns an empty string. 
+Returns an empty string.
 .TP
 \fBselection get\fR ?\fB\-displayof\fR \fIwindow\fR? ?\fB\-selection\fR \fIselection\fR? ?\fB\-type\fR \fItype\fR?
 .
@@ -79,7 +79,7 @@ automatically handled as type \fBUTF8_STRING\fR as well.
 When \fIselection\fR is requested, \fIwindow\fR is the selection owner,
 and \fItype\fR is the requested type, \fIcommand\fR will be executed
 as a Tcl command with two additional numbers appended to it
-(with space separators).  
+(with space separators).
 The two additional numbers
 are \fIoffset\fR and \fImaxChars\fR:  \fIoffset\fR specifies a starting
 character position in the selection and \fImaxChars\fR gives the maximum
diff --git a/doc/tkerror.n b/doc/tkerror.n
index 0780901..53cb0d1 100644
--- a/doc/tkerror.n
+++ b/doc/tkerror.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH tkerror n 4.1 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -20,11 +20,11 @@ Note: as of Tk 4.1 the \fBtkerror\fR command has been renamed to
 \fBbgerror\fR because the event loop (which is what usually invokes
 it) is now part of Tcl.  For backward compatibility
 the \fBbgerror\fR provided by the current Tk version still
-tries to call \fBtkerror\fR if there is one (or an auto loadable one), 
+tries to call \fBtkerror\fR if there is one (or an auto loadable one),
 so old script defining that error handler should still work, but you
-should anyhow modify your scripts to use \fBbgerror\fR instead 
+should anyhow modify your scripts to use \fBbgerror\fR instead
 of \fBtkerror\fR because that support for the old name might vanish
-in the near future. If that call fails, \fBbgerror\fR 
+in the near future. If that call fails, \fBbgerror\fR
 posts a dialog showing the error and offering to see the stack trace
 to the user. If you want your own error management you should
 directly override \fBbgerror\fR instead of \fBtkerror\fR.
diff --git a/doc/ttk_Geometry.3 b/doc/ttk_Geometry.3
index 8dfae37..61015c5 100644
--- a/doc/ttk_Geometry.3
+++ b/doc/ttk_Geometry.3
@@ -75,7 +75,7 @@ Used to store error messages.
 .AP int left in
 Extra padding (in pixels) to add to the left side of a region.
 .AP "Tcl_Obj *" objPtr in
-String value contains a symbolic name 
+String value contains a symbolic name
 to be converted to an enumerated value or bitmask.
 Internal rep may be be modified to cache corresponding value.
 .AP Ttk_Padding padding in
@@ -84,18 +84,18 @@ Extra padding to add on the inside of a region.
 .AP Ttk_Box parcel in
 A rectangular region, allocated from a cavity.
 .AP int relief in
-One of the standard Tk relief options 
-(TK_RELIEF_RAISED, TK_RELIEF_SUNKEN, etc.).  
+One of the standard Tk relief options
+(TK_RELIEF_RAISED, TK_RELIEF_SUNKEN, etc.).
 See \fBTk_GetReliefFromObj\fR.
 .AP short right in
 Extra padding (in pixels) to add to the right side of a region.
 .AP Ttk_Side side in
-One of \fBTTK_SIDE_LEFT\fR, \fBTTK_SIDE_TOP\fR, 
+One of \fBTTK_SIDE_LEFT\fR, \fBTTK_SIDE_TOP\fR,
 \fBTTK_SIDE_RIGHT\fR, or \fBTTK_SIDE_BOTTOM\fR.
 .AP unsigned sticky in
 A bitmask containing one or more of the bits
-\fBTTK_STICK_W\fR (west, or left), 
-\fBTTK_STICK_E\fR (east, or right, 
+\fBTTK_STICK_W\fR (west, or left),
+\fBTTK_STICK_E\fR (east, or right,
 \fBTTK_STICK_N\fR (north, or top), and
 \fBTTK_STICK_S\fR (south, or bottom).
 \fBTTK_FILL_X\fR is defined as a synonym for (TTK_STICK_W|TTK_STICK_E),
@@ -104,7 +104,7 @@ and  \fBTTK_FILL_BOTH\fR and \fBTTK_STICK_ALL\fR
 are synonyms for (TTK_FILL_X|TTK_FILL_Y).
 See also: \fIgrid(n)\fR.
 .AP Tk_Window tkwin in
-Window whose screen geometry determines 
+Window whose screen geometry determines
 the conversion between absolute units and pixels.
 .AP short top in
 Extra padding at the top of a region.
@@ -184,14 +184,14 @@ with all components equal to the specified \fIborder\fR.
 and returns a combined padding containing the sum of the
 individual padding components.
 .PP
-\fBTtk_RelievePadding\fR 
+\fBTtk_RelievePadding\fR
 adds an extra 2 pixels of padding to \fIpadding\fR
 according to the specified \fIrelief\fR.
-If \fIrelief\fR is \fBTK_RELIEF_SUNKEN\fR, 
+If \fIrelief\fR is \fBTK_RELIEF_SUNKEN\fR,
 adds two pixels at the top and left
 so the inner region is shifted down and to the left.
 If it is \fBTK_RELIEF_RAISED\fR, adds two pixels
-at the bottom and right so 
+at the bottom and right so
 the inner region is shifted up and to the right.
 Otherwise, adds 1 pixel on all sides.
 This is typically used in element geometry procedures to simulate a
@@ -201,17 +201,17 @@ look for pushbuttons.
 .PP
 \fBTtk_GetPaddingFromObj\fR converts the string in \fIobjPtr\fR
 to a \fBTtk_Padding\fR structure.
-The string representation is a list of 
-up to four length specifications 
+The string representation is a list of
+up to four length specifications
 .QW "\fIleft top right bottom\fR" .
-If fewer than four elements are specified, 
+If fewer than four elements are specified,
 \fIbottom\fR defaults to \fItop\fR,
-\fIright\fR defaults to \fIleft\fR, and 
+\fIright\fR defaults to \fIleft\fR, and
 \fItop\fR defaults to \fIleft\fR.
 See \fBTk_GetPixelsFromObj(3)\fR for the syntax of length specifications.
 .PP
 \fBTtk_GetBorderFromObj\fR is the same as \fBTtk_GetPaddingFromObj\fR
-except that the lengths are specified as integers 
+except that the lengths are specified as integers
 (i.e., resolution-dependant values like \fI3m\fR are not allowed).
 .PP
 \fBTtk_GetStickyFromObj\fR converts the string in \fIobjPtr\fR
diff --git a/doc/ttk_button.n b/doc/ttk_button.n
index 2f3c845..62ebe47 100644
--- a/doc/ttk_button.n
+++ b/doc/ttk_button.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::button n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -36,12 +36,12 @@ button (meaning, roughly,
 The default is \fBnormal\fR.
 .RS
 .PP
-Depending on the theme, the default button may be displayed 
+Depending on the theme, the default button may be displayed
 with an extra highlight ring, or with a different border color.
 .RE
 .OP \-width width Width
-If greater than zero, specifies how much space, in character widths, 
-to allocate for the text label.  
+If greater than zero, specifies how much space, in character widths,
+to allocate for the text label.
 If less than zero, specifies a minimum width.
 If zero or unspecified, the natural width of the text label is used.
 Note that some themes may specify a non-zero \fB\-width\fR
@@ -55,8 +55,8 @@ in the style.
 .\" .OP \-relief relief Relief
 .SH "WIDGET COMMAND"
 .PP
-In addition to the standard 
-\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR 
+In addition to the standard
+\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR
 commands, buttons support the following additional widget commands:
 .TP
 \fIpathName \fBinvoke\fR
diff --git a/doc/ttk_checkbutton.n b/doc/ttk_checkbutton.n
index 6236503..ed79f5a 100644
--- a/doc/ttk_checkbutton.n
+++ b/doc/ttk_checkbutton.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::checkbutton n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -14,7 +14,7 @@ ttk::checkbutton \- On/off widget
 .BE
 .SH DESCRIPTION
 A \fBttk::checkbutton\fR widget is used to show or change a setting.
-It has two states, selected and deselected.  
+It has two states, selected and deselected.
 The state of the checkbutton may be linked to a Tcl variable.
 .SO ttk_widget
 \-class	\-compound	\-cursor
@@ -26,18 +26,18 @@ The state of the checkbutton may be linked to a Tcl variable.
 .OP \-command command Command
 A Tcl script to execute whenever the widget is invoked.
 .OP \-offvalue offValue OffValue
-The value to store in the associated \fB\-variable\fR 
+The value to store in the associated \fB\-variable\fR
 when the widget is deselected.  Defaults to \fB0\fR.
 .OP \-onvalue onValue OnValue
-The value to store in the associated \fB\-variable\fR 
+The value to store in the associated \fB\-variable\fR
 when the widget is selected.  Defaults to \fB1\fR.
 .OP \-variable variable Variable
 The name of a global variable whose value is linked to the widget.
 Defaults to the widget pathname if not specified.
 .SH "WIDGET COMMAND"
 .PP
-In addition to the standard 
-\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR 
+In addition to the standard
+\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR
 commands, checkbuttons support the following additional
 widget commands:
 .TP
@@ -48,17 +48,17 @@ If the widget is currently selected, sets the \fB\-variable\fR
 to the \fB\-offvalue\fR and deselects the widget;
 otherwise, sets the \fB\-variable\fR to the \fB\-onvalue\fR
 Returns the result of the \fB\-command\fR.
-.\" Missing: select, deselect, toggle 
+.\" Missing: select, deselect, toggle
 .\" Are these useful?  They don't invoke the -command
 .\" Missing: flash.  This is definitely not useful.
 .SH "WIDGET STATES"
 .PP
 The widget does not respond to user input if the \fBdisabled\fR state is set.
-The widget sets the \fBselected\fR state whenever 
+The widget sets the \fBselected\fR state whenever
 the linked \fB\-variable\fR is set to the widget's \fB\-onvalue\fR,
 and clears it otherwise.
-The widget sets the \fBalternate\fR state whenever the 
-linked \fB\-variable\fR is unset.  
+The widget sets the \fBalternate\fR state whenever the
+linked \fB\-variable\fR is unset.
 (The \fBalternate\fR state may be used to indicate a
 .QW tri-state
 or
diff --git a/doc/ttk_combobox.n b/doc/ttk_combobox.n
index dc1c7d1..5e5b3fc 100644
--- a/doc/ttk_combobox.n
+++ b/doc/ttk_combobox.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::combobox n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -15,7 +15,7 @@ ttk::combobox \- text field with popdown selection list
 .SH DESCRIPTION
 .PP
 A \fBttk::combobox\fR combines a text field with a pop-down list of values;
-the user may select the value of the text field from among the 
+the user may select the value of the text field from among the
 values in the list.
 .SO ttk_widget
 \-class	\-cursor	\-takefocus
@@ -37,14 +37,14 @@ The \fB\-postcommand\fR script may specify the \fB\-values\fR to display.
 .OP \-state state State
 One of \fBnormal\fR, \fBreadonly\fR, or \fBdisabled\fR.
 In the \fBreadonly\fR state,
-the value may not be edited directly, and 
+the value may not be edited directly, and
 the user can only select one of the \fB\-values\fR from the
 dropdown list.
-In the \fBnormal\fR state, 
+In the \fBnormal\fR state,
 the text field is directly editable.
 In the \fBdisabled\fR state, no interaction is possible.
 .OP \-textvariable textVariable TextVariable
-Specifies the name of a global variable whose value is linked 
+Specifies the name of a global variable whose value is linked
 to the widget value.
 Whenever the variable changes value the widget value is updated,
 and vice versa.
@@ -66,7 +66,7 @@ The following subcommands are possible for combobox widgets:
 '\"See \fIttk::widget(n)\fR.
 .TP
 \fIpathName \fBcurrent\fR ?\fInewIndex\fR?
-If \fInewIndex\fR is supplied, sets the combobox value 
+If \fInewIndex\fR is supplied, sets the combobox value
 to the element at position \fInewIndex\fR in the list of \fB\-values\fR.
 Otherwise, returns the index of the current value in the list of
 \fB\-values\fR or \fB\-1\fR if the current value does not appear in the list.
diff --git a/doc/ttk_entry.n b/doc/ttk_entry.n
index 34779a6..984e957 100644
--- a/doc/ttk_entry.n
+++ b/doc/ttk_entry.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::entry n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -18,9 +18,9 @@ ttk::entry \- Editable text field widget
 .PP
 An \fBttk::entry\fR widget displays a one-line text string and
 allows that string to be edited by the user.
-The value of the string may be linked to a Tcl variable 
+The value of the string may be linked to a Tcl variable
 with the \fB\-textvariable\fR option.
-Entry widgets support horizontal scrolling with the 
+Entry widgets support horizontal scrolling with the
 standard \fB\-xscrollcommand\fR option and \fBxview\fR widget command.
 .SO ttk_widget
 \-class	\-cursor	\-style
@@ -28,7 +28,7 @@ standard \fB\-xscrollcommand\fR option and \fBxview\fR widget command.
 .SE
 .SH "WIDGET-SPECIFIC OPTIONS"
 .OP \-exportselection exportSelection ExportSelection
-A boolean value specifying whether or not 
+A boolean value specifying whether or not
 a selection in the widget should be linked to the X selection.
 If the selection is exported, then selecting in the widget deselects
 the current X selection, selecting outside the widget deselects any
@@ -65,7 +65,7 @@ Specifies one of three states for the entry,
 \fBnormal\fR, \fBdisabled\fR, or \fBreadonly\fR.
 See \fBWIDGET STATES\fR, below.
 .OP \-textvariable textVariable Variable
-Specifies the name of a global variable whose value is linked 
+Specifies the name of a global variable whose value is linked
 to the entry widget's contents.
 Whenever the variable changes value, the widget's contents are updated,
 and vice versa.
@@ -217,7 +217,7 @@ earlier one, then the entry's selection is cleared.
 '\"See \fIttk::widget(n)\fR.
 .TP
 \fIpathName \fBvalidate\fR
-Force revalidation, independent of the conditions specified 
+Force revalidation, independent of the conditions specified
 by the \fB\-validate\fR option.
 Returns 0 if validation fails, 1 if it succeeds.
 Sets or clears the \fBinvalid\fR state accordingly.
@@ -277,20 +277,20 @@ options are used to enable entry widget validation.
 .PP
 There are two main validation modes: \fIprevalidation\fR,
 in which the \fB\-validatecommand\fR is evaluated prior to each edit
-and the return value is used to determine whether to accept 
+and the return value is used to determine whether to accept
 or reject the change;
-and \fIrevalidation\fR, in which the \fB\-validatecommand\fR is 
+and \fIrevalidation\fR, in which the \fB\-validatecommand\fR is
 evaluated to determine whether the current value is valid.
 .PP
 The \fB\-validate\fR option determines when validation occurs;
 it may be set to any of the following values:
 .RS
 .IP \fBnone\fR
-Default.  This means validation will only occur when 
+Default.  This means validation will only occur when
 specifically requested by the \fBvalidate\fR widget command.
 .IP \fBkey\fR
 The entry will be prevalidated prior to each edit
-(specifically, whenever the \fBinsert\fR or \fBdelete\fR 
+(specifically, whenever the \fBinsert\fR or \fBdelete\fR
 widget commands are called).
 If prevalidation fails, the edit is rejected.
 .IP \fBfocus\fR
@@ -311,20 +311,20 @@ may modify the entry widget's value
 via the widget \fBinsert\fR or \fBdelete\fR commands,
 or by setting the linked \fB\-textvariable\fR.
 If either does so during prevalidation,
-then the edit is rejected 
+then the edit is rejected
 regardless of the value returned by the \fB\-validatecommand\fR.
 .PP
-If \fB\-validatecommand\fR is empty (the default), 
+If \fB\-validatecommand\fR is empty (the default),
 validation always succeeds.
 .SS "VALIDATION SCRIPT SUBSTITUTIONS"
 .PP
-It is possible to perform percent substitutions on the 
+It is possible to perform percent substitutions on the
 \fB\-validatecommand\fR and \fB\-invalidcommand\fR,
 just as in a \fBbind\fR script.
 The following substitutions are recognized:
 .RS
 .IP \fB%d\fR
-Type of action: 1 for \fBinsert\fR prevalidation, 
+Type of action: 1 for \fBinsert\fR prevalidation,
 0 for \fBdelete\fR prevalidation,
 or \-1 for revalidation.
 .IP \fB%i\fR
@@ -348,19 +348,19 @@ The name of the entry widget.
 .PP
 The standard Tk entry widget automatically disables validation
 (by setting \fB\-validate\fR to \fBnone\fR)
-if the \fB\-validatecommand\fR or \fB\-invalidcommand\fR modifies 
+if the \fB\-validatecommand\fR or \fB\-invalidcommand\fR modifies
 the entry's value.
 The Tk themed entry widget only disables validation if one
 of the validation scripts raises an error, or if \fB\-validatecommand\fR
 does not return a valid boolean value.
-(Thus, it is not necessary to re-enable validation after 
+(Thus, it is not necessary to re-enable validation after
 modifying the entry value in a validation script).
 .PP
 In addition, the standard entry widget invokes validation whenever the linked
 \fB\-textvariable\fR is modified; the Tk themed entry widget does not.
 .SH "DEFAULT BINDINGS"
 .PP
-The entry widget's default bindings enable the following behavior.  
+The entry widget's default bindings enable the following behavior.
 In the descriptions below,
 .QW word
 refers to a contiguous group of letters, digits, or
@@ -442,22 +442,22 @@ Control-k deletes all the characters to the right of the insertion
 cursor.
 .SH "WIDGET STATES"
 .PP
-In the \fBdisabled\fR state, 
+In the \fBdisabled\fR state,
 the entry cannot be edited and the text cannot be selected.
 In the \fBreadonly\fR state,
-no insert cursor is displayed and 
-the entry cannot be edited 
+no insert cursor is displayed and
+the entry cannot be edited
 (specifically: the \fBinsert\fR and \fBdelete\fR commands have no effect).
-The \fBdisabled\fR state is the same as \fBreadonly\fR, 
+The \fBdisabled\fR state is the same as \fBreadonly\fR,
 and in addition text cannot be selected.
 .PP
-Note that changes to the linked \fB\-textvariable\fR will 
+Note that changes to the linked \fB\-textvariable\fR will
 still be reflected in the entry, even if it is disabled or readonly.
 .PP
 Typically, the text is
 .QW grayed-out
 in the \fBdisabled\fR state,
-and a different background is used in the \fBreadonly\fR state. 
+and a different background is used in the \fBreadonly\fR state.
 .PP
 The entry widget sets the \fBinvalid\fR state if revalidation fails,
 and clears it whenever validation succeeds.
diff --git a/doc/ttk_frame.n b/doc/ttk_frame.n
index 3b885e0..b54ce96 100644
--- a/doc/ttk_frame.n
+++ b/doc/ttk_frame.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::frame n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -22,9 +22,9 @@ together.
 .SE
 .SH "WIDGET-SPECIFIC OPTIONS"
 .OP \-borderwidth borderWidth BorderWidth
-The desired width of the widget border.  Defaults to 0. 
+The desired width of the widget border.  Defaults to 0.
 .OP \-relief relief Relief
-One of the standard Tk border styles: 
+One of the standard Tk border styles:
 \fBflat\fR, \fBgroove\fR, \fBraised\fR, \fBridge\fR,
 \fBsolid\fR, or \fBsunken\fR.
 Defaults to \fBflat\fR.
diff --git a/doc/ttk_image.n b/doc/ttk_image.n
index 99d38c6..4985c20 100644
--- a/doc/ttk_image.n
+++ b/doc/ttk_image.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk_image n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -16,7 +16,7 @@ ttk_image \- Define an element based on an image
 .PP
 The \fIimage\fR element factory creates a new element
 in the current theme whose visual appearance is determined
-by Tk images. 
+by Tk images.
 \fIimageSpec\fP is a list of one or more elements.
 The first element is the default image name.
 The rest of the list is a sequence of \fIstatespec / value\fR
@@ -36,7 +36,7 @@ Specifies a minimum height for the element.
 If less than zero, the base image's height is used as a default.
 .TP
 \fB\-padding\fR \fIpadding\fR
-Specifies the element's interior padding.  Defaults to 
+Specifies the element's interior padding.  Defaults to
 \fB\-border\fR if not specified.
 .TP
 \fB\-sticky\fR \fIspec\fR
@@ -53,13 +53,13 @@ Specifies a minimum width for the element.
 If less than zero, the base image's width is used as a default.
 .SH "IMAGE STRETCHING"
 .PP
-If the element's allocated parcel is larger than the image, 
+If the element's allocated parcel is larger than the image,
 the image will be placed in the parcel based on the \fB\-sticky\fR option.
 If the image needs to stretch horizontally (i.e., \fB\-sticky ew\fR)
 or vertically (\fB\-sticky ns\fR),
 subregions of the image are replicated to fill the parcel
 based on the \fB\-border\fR option.
-The \fB\-border\fR divides the image into 9 regions: 
+The \fB\-border\fR divides the image into 9 regions:
 four fixed corners, top and left edges (which may be tiled horizontally),
 left and right edges (which may be tiled vertically),
 and the central area (which may be tiled in both directions).
diff --git a/doc/ttk_intro.n b/doc/ttk_intro.n
index baef34d..bc3cd69 100644
--- a/doc/ttk_intro.n
+++ b/doc/ttk_intro.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::intro n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -24,7 +24,7 @@ all aspects of the widget's appearance are controlled by the style of
 the widget (i.e. the style of the elements of the widget).
 .SH "THEMES"
 .PP
-A \fItheme\fR is a collection of elements and styles 
+A \fItheme\fR is a collection of elements and styles
 that determine the look and feel of the widget set.
 Themes can be used to:
 .IP \(bu
@@ -47,7 +47,7 @@ For example, a vertical scrollbar widget contains \fBuparrow\fR,
 .PP
 Element names use a recursive dotted notation.
 For example, \fBuparrow\fR identifies a generic arrow element,
-and \fBScrollbar.uparrow\fR and \fBCombobox.uparrow\fR identify 
+and \fBScrollbar.uparrow\fR and \fBCombobox.uparrow\fR identify
 widget-specific elements.
 When looking for an element, the style engine looks for
 the specific name first, and if an element of that name is
@@ -56,9 +56,9 @@ successive leading components of the element name.
 .PP
 Like widgets, elements have \fIoptions\fR which
 specify what to display and how to display it.
-For example, the \fBtext\fR element 
+For example, the \fBtext\fR element
 (which displays a text string) has
-\fB\-text\fR, \fB\-font\fR, \fB\-foreground\fR, \fB\-background\fR, 
+\fB\-text\fR, \fB\-font\fR, \fB\-foreground\fR, \fB\-background\fR,
 \fB\-underline\fR, and \fB\-width\fR options.
 The value of an element option is taken from:
 .IP \(bu
@@ -105,14 +105,14 @@ and the various flavors of buttons which have \fBactive\fR state.
 The themed Tk widgets generalizes this idea:
 every widget has a bitmap of independent state flags.
 Widget state flags include \fBactive\fR, \fBdisabled\fR,
-\fBpressed\fR, \fBfocus\fR, etc., 
+\fBpressed\fR, \fBfocus\fR, etc.,
 (see \fIttk::widget(n)\fR for the full list of state flags).
 .PP
-Instead of a \fB\-state\fR option, every widget now has 
+Instead of a \fB\-state\fR option, every widget now has
 a \fBstate\fR widget command which is used to set or query
 the state.
 A \fIstate specification\fR is a list of symbolic state names
-indicating which bits are set, each optionally prefixed with an 
+indicating which bits are set, each optionally prefixed with an
 exclamation point indicating that the bit is cleared instead.
 .PP
 For example, the class bindings for the \fBttk::button\fR
@@ -132,7 +132,7 @@ This specifies that the widget becomes \fBactive\fR when
 the pointer enters the widget, and inactive when it leaves.
 Similarly it becomes \fBpressed\fR when the mouse button is pressed,
 and \fB!pressed\fR on the ButtonRelease event.
-In addition, the button unpresses if 
+In addition, the button unpresses if
 pointer is dragged outside the widget while Button-1 is held down,
 and represses if it's dragged back in.
 Finally, when the mouse button is released, the widget's
@@ -143,7 +143,7 @@ but not by much).
 '\" Note to self: rewrite that paragraph.  It's horrible.
 .SH "STYLES"
 .PP
-Each widget is associated with a \fIstyle\fR, 
+Each widget is associated with a \fIstyle\fR,
 which specifies values for element options.
 Style names use a recursive dotted notation like layouts and elements;
 by default, widgets use the class name to look up a style in the current theme.
@@ -157,7 +157,7 @@ ttk::\fBstyle configure\fR TButton \e
 	;
 .CE
 .PP
-Many elements are displayed differently depending on the widget state.  
+Many elements are displayed differently depending on the widget state.
 For example, buttons have a different background when they are active,
 a different foreground when disabled, and a different relief when pressed.
 The \fBstyle map\fR command specifies dynamic option settings
diff --git a/doc/ttk_label.n b/doc/ttk_label.n
index ff93adf..6781b47 100644
--- a/doc/ttk_label.n
+++ b/doc/ttk_label.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::label n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -15,7 +15,7 @@ ttk::label \- Display a text string and/or image
 .SH DESCRIPTION
 .PP
 A \fBttk::label\fR widget displays a textual label and/or image.
-The label may be linked to a Tcl variable 
+The label may be linked to a Tcl variable
 to automatically change the displayed text.
 .SO ttk_widget
 \-class	\-compound	\-cursor
@@ -31,7 +31,7 @@ relative to the inner margins.  Legal values are
 \fBs\fR, \fBsw\fR, \fBw\fR, \fBnw\fR, and \fBcenter\fR.
 See also \fB\-justify\fR.
 .OP \-background frameColor FrameColor
-The widget's background color.  
+The widget's background color.
 If unspecified, the theme default is used.
 .OP \-font font Font
 Font to use for label text.
@@ -45,17 +45,17 @@ One of \fBleft\fR, \fBcenter\fR, or \fBright\fR.
 See also \fB\-anchor\fR.
 .OP \-padding padding Padding
 Specifies the amount of extra space to allocate for the widget.
-The padding is a list of up to four length specifications 
+The padding is a list of up to four length specifications
 \fIleft top right bottom\fR.
-If fewer than four elements are specified, 
+If fewer than four elements are specified,
 \fIbottom\fR defaults to \fItop\fR,
-\fIright\fR defaults to \fIleft\fR, and 
+\fIright\fR defaults to \fIleft\fR, and
 \fItop\fR defaults to \fIleft\fR.
 .OP \-relief relief Relief
 .\" Rewrite this:
 Specifies the 3-D effect desired for the widget border.
 Valid values are
-\fBflat\fR, \fBgroove\fR, \fBraised\fR, \fBridge\fR, \fBsolid\fR, 
+\fBflat\fR, \fBgroove\fR, \fBraised\fR, \fBridge\fR, \fBsolid\fR,
 and \fBsunken\fR.
 .OP \-text text Text
 Specifies a text string to be displayed inside the widget
diff --git a/doc/ttk_labelframe.n b/doc/ttk_labelframe.n
index 2dae91f..64edf6a 100644
--- a/doc/ttk_labelframe.n
+++ b/doc/ttk_labelframe.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::labelframe n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -22,7 +22,7 @@ another widget.
 \-style
 .SE
 .SH "WIDGET-SPECIFIC OPTIONS"
-.\" XXX: Currently included, but may go away: 
+.\" XXX: Currently included, but may go away:
 .\" XXX: .OP -borderwidth borderWidth BorderWidth
 .\" XXX: The desired width of the widget border.  Default is theme-dependent.
 .\" XXX: .OP -relief relief Relief
@@ -31,7 +31,7 @@ another widget.
 .\" XXX: \fBsolid\fR, or \fBsunken\fR.
 .\" XXX: Default is theme-dependent.
 .OP \-labelanchor labelAnchor LabelAnchor
-Specifies where to place the label.  
+Specifies where to place the label.
 Allowed values are (clockwise from the top upper left corner):
 \fBnw\fR, \fBn\fR, \fBne\fR, \fBen\fR, \fBe\fR, \fBes\fR,
 \fBse\fR, \fBs\fR,\fBsw\fR, \fBws\fR, \fBw\fR and \fBwn\fR.
@@ -43,10 +43,10 @@ The default value is theme-dependent.
 .OP \-text text Text
 Specifies the text of the label.
 .OP \-underline underline Underline
-If set, specifies the integer index (0-based) of a character to 
+If set, specifies the integer index (0-based) of a character to
 underline in the text string.
-The underlined character is used for mnemonic activation.  
-Mnemonic activation for a \fBttk::labelframe\fR 
+The underlined character is used for mnemonic activation.
+Mnemonic activation for a \fBttk::labelframe\fR
 sets the keyboard focus to the first child of the \fBttk::labelframe\fR widget.
 .OP \-padding padding Padding
 Additional padding to include inside the border.
diff --git a/doc/ttk_menubutton.n b/doc/ttk_menubutton.n
index 33189e8..698bd0c 100644
--- a/doc/ttk_menubutton.n
+++ b/doc/ttk_menubutton.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::menubutton n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -24,10 +24,10 @@ and displays a menu when pressed.
 .SE
 .SH "WIDGET-SPECIFIC OPTIONS"
 .OP \-direction direction Direction
-Specifies where the menu is to be popped up relative 
-to the menubutton.  
+Specifies where the menu is to be popped up relative
+to the menubutton.
 One of: \fBabove\fR, \fBbelow\fR, \fBleft\fR, \fBright\fR,
-or \fBflush\fR.  The default is \fBbelow\fR.  
+or \fBflush\fR.  The default is \fBbelow\fR.
 \fBflush\fR pops the menu up directly over the menubutton.
 .OP \-menu menu Menu
 Specifies the path name of the menu associated with the menubutton.
@@ -38,8 +38,8 @@ menubutton.
 .\" .OP \-padding padding Pad
 .SH "WIDGET COMMAND"
 .PP
-Menubutton widgets support the standard 
-\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR 
+Menubutton widgets support the standard
+\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR
 methods.  No other widget methods are used.
 .SH "STANDARD STYLES"
 .PP
diff --git a/doc/ttk_notebook.n b/doc/ttk_notebook.n
index cecae48..4d1b789 100644
--- a/doc/ttk_notebook.n
+++ b/doc/ttk_notebook.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::notebook n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -18,7 +18,7 @@ ttk::notebook \- Multi-paned container widget
 .fi
 .BE
 .SH DESCRIPTION
-A \fBttk::notebook\fR widget manages a collection of windows 
+A \fBttk::notebook\fR widget manages a collection of windows
 and displays a single one at a time.
 Each slave window is associated with a \fItab\fR,
 which the user may select to change the currently-displayed window.
@@ -28,35 +28,35 @@ which the user may select to change the currently-displayed window.
 .SE
 .SH "WIDGET-SPECIFIC OPTIONS"
 .OP \-height height Height
-If present and greater than zero, 
+If present and greater than zero,
 specifies the desired height of the pane area
 (not including internal padding or tabs).
 Otherwise, the maximum height of all panes is used.
 .OP \-padding padding Padding
 Specifies the amount of extra space to add around the outside
 of the notebook.
-The padding is a list of up to four length specifications 
+The padding is a list of up to four length specifications
 \fIleft top right bottom\fR.
-If fewer than four elements are specified, 
+If fewer than four elements are specified,
 \fIbottom\fR defaults to \fItop\fR,
-\fIright\fR defaults to \fIleft\fR, and 
+\fIright\fR defaults to \fIleft\fR, and
 \fItop\fR defaults to \fIleft\fR.
 .OP \-width width Width
-If present and greater than zero, 
+If present and greater than zero,
 specifies the desired width of the pane area
 (not including internal padding).
 Otherwise, the maximum width of all panes is used.
 .SH "TAB OPTIONS"
 The following options may be specified for individual notebook panes:
 .OP \-state state State
-Either \fBnormal\fR, \fBdisabled\fR or \fBhidden\fR.  
+Either \fBnormal\fR, \fBdisabled\fR or \fBhidden\fR.
 If \fBdisabled\fR, then the tab is not selectable.
 If \fBhidden\fR, then the tab is not shown.
 .OP \-sticky sticky Sticky
 Specifies how the slave window is positioned within the pane area.
 Value is a string containing zero or more of the characters
 \fBn, s, e,\fR or \fBw\fR.
-Each letter refers to a side (north, south, east, or west) 
+Each letter refers to a side (north, south, east, or west)
 that the slave window will
 .QW stick
 to, as per the \fBgrid\fR geometry manager.
@@ -73,7 +73,7 @@ Specifies how to display the image relative to the text,
 in the case both \fB\-text\fR and \fB\-image\fR are present.
 See \fIlabel(n)\fR for legal values.
 .OP \-underline underline Underline
-Specifies the integer index (0-based) of a character to underline 
+Specifies the integer index (0-based) of a character to underline
 in the text string.
 The underlined character is used for mnemonic activation
 if \fBttk::notebook::enableTraversal\fR is called.
@@ -87,7 +87,7 @@ The name of a slave window;
 .IP \(bu
 A positional specification of the form
 .QW @\fIx\fR,\fIy\fR ,
-which identifies the tab 
+which identifies the tab
 .IP \(bu
 The literal string
 .QW \fBcurrent\fR ,
@@ -95,7 +95,7 @@ which identifies the currently-selected tab; or:
 .IP \(bu
 The literal string
 .QW \fBend\fR ,
-which returns the number of tabs 
+which returns the number of tabs
 (only valid for
 .QW "\fIpathname \fBindex\fR" ).
 .SH "WIDGET COMMAND"
@@ -142,9 +142,9 @@ or the total number of tabs if \fItabid\fR is the string
 .TP
 \fIpathname \fBinsert \fIpos subwindow options...\fR
 Inserts a pane at the specified position.
-\fIpos\fR is either the string \fBend\fR, an integer index, 
+\fIpos\fR is either the string \fBend\fR, an integer index,
 or the name of a managed subwindow.
-If \fIsubwindow\fR is already managed by the notebook, 
+If \fIsubwindow\fR is already managed by the notebook,
 moves it to the specified position.
 See \fBTAB OPTIONS\fR for the list of available options.
 .TP
@@ -190,7 +190,7 @@ containing the notebook as follows:
 of any tab, will select that tab.
 .PP
 Multiple notebooks in a single toplevel may be enabled for traversal,
-including nested notebooks.  
+including nested notebooks.
 However, notebook traversal only works properly if all panes
 are direct children of the notebook.
 .SH "VIRTUAL EVENTS"
diff --git a/doc/ttk_progressbar.n b/doc/ttk_progressbar.n
index 6306450..1945f70 100644
--- a/doc/ttk_progressbar.n
+++ b/doc/ttk_progressbar.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::progressbar n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -44,15 +44,15 @@ that is, the progress bar completes one
 when the \fB\-value\fR increases by \fB\-maximum\fR.
 .OP \-variable variable Variable
 The name of a global Tcl variable which is linked to the \fB\-value\fR.
-If specified, the \fB\-value\fR of the progress bar is 
-automatically set to the value of the variable whenever 
+If specified, the \fB\-value\fR of the progress bar is
+automatically set to the value of the variable whenever
 the latter is modified.
 .OP \-phase phase Phase
 Read-only option.
-The widget periodically increments the value of this option 
+The widget periodically increments the value of this option
 whenever the \fB\-value\fR is greater than 0 and,
 in \fIdeterminate\fR mode, less than \fB\-maximum\fR.
-This option may be used by the current theme 
+This option may be used by the current theme
 to provide additional animation effects.
 .SH "WIDGET COMMAND"
 .PP
@@ -72,7 +72,7 @@ Test the widget state; see \fIttk::widget(n)\fR.
 .TP
 \fIpathName \fBstart\fR ?\fIinterval\fR?
 Begin autoincrement mode:
-schedules a recurring timer event that calls \fBstep\fR 
+schedules a recurring timer event that calls \fBstep\fR
 every \fIinterval\fR milliseconds.
 If omitted, \fIinterval\fR defaults to 50 milliseconds (20 steps/second).
 .TP
@@ -80,7 +80,7 @@ If omitted, \fIinterval\fR defaults to 50 milliseconds (20 steps/second).
 Modify or query the widget state; see \fIttk::widget(n)\fR.
 .TP
 \fIpathName \fBstep\fR ?\fIamount\fR?
-Increments the \fB\-value\fR by \fIamount\fR.  
+Increments the \fB\-value\fR by \fIamount\fR.
 \fIamount\fR defaults to 1.0 if omitted.
 .TP
 \fIpathName \fBstop\fR
diff --git a/doc/ttk_radiobutton.n b/doc/ttk_radiobutton.n
index c16f2cd..5b4dcce 100644
--- a/doc/ttk_radiobutton.n
+++ b/doc/ttk_radiobutton.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::radiobutton n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -29,21 +29,21 @@ it sets the variable to its associated value.
 .OP \-command command Command
 A Tcl script to evaluate whenever the widget is invoked.
 .OP \-value Value Value
-The value to store in the associated \fB\-variable\fR 
-when the widget is selected. 
+The value to store in the associated \fB\-variable\fR
+when the widget is selected.
 .OP \-variable variable Variable
 The name of a global variable whose value is linked to the widget.
 Default value is \fB::selectedButton\fR.
 .SH "WIDGET COMMAND"
 .PP
-In addition to the standard 
-\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR 
+In addition to the standard
+\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR
 commands, radiobuttons support the following additional
 widget commands:
 .TP
 \fIpathname\fB invoke\fR
 Sets the \fB\-variable\fR to the \fB\-value\fR, selects the widget,
-and evaluates the associated \fB\-command\fR.  
+and evaluates the associated \fB\-command\fR.
 Returns the result of the \fB\-command\fR, or the empty
 string if no \fB\-command\fR is specified.
 .\" Missing: select, deselect.  Useful?
@@ -51,11 +51,11 @@ string if no \fB\-command\fR is specified.
 .SH "WIDGET STATES"
 .PP
 The widget does not respond to user input if the \fBdisabled\fR state is set.
-The widget sets the \fBselected\fR state whenever 
+The widget sets the \fBselected\fR state whenever
 the linked \fB\-variable\fR is set to the widget's \fB\-value\fR,
 and clears it otherwise.
-The widget sets the \fBalternate\fR state whenever the 
-linked \fB\-variable\fR is unset.  
+The widget sets the \fBalternate\fR state whenever the
+linked \fB\-variable\fR is unset.
 (The \fBalternate\fR state may be used to indicate a
 .QW tri-state
 or
diff --git a/doc/ttk_scrollbar.n b/doc/ttk_scrollbar.n
index 56df214..03d09f2 100644
--- a/doc/ttk_scrollbar.n
+++ b/doc/ttk_scrollbar.n
@@ -4,12 +4,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::scrollbar n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
 .SH NAME
-ttk::scrollbar \- Control the viewport of a scrollable widget 
+ttk::scrollbar \- Control the viewport of a scrollable widget
 .SH SYNOPSIS
 \fBttk::scrollbar\fR \fIpathName \fR?\fIoptions...\fR?
 .BE
@@ -30,7 +30,7 @@ these are used to scroll the visible region in discrete units.
 .SE
 .SH "WIDGET-SPECIFIC OPTIONS"
 .OP \-command command Command
-A Tcl script prefix to evaluate 
+A Tcl script prefix to evaluate
 to change the view in the widget associated with the scrollbar.
 Additional arguments are appended to the value of this option,
 as described in \fBSCROLLING COMMANDS\fR below,
@@ -66,7 +66,7 @@ See \fIttk::widget(n)\fR.
 Test the widget state; see \fIttk::widget(n)\fR.
 .TP
 \fIpathName \fBset \fIfirst last\fR
-This command is normally invoked by the scrollbar's associated widget 
+This command is normally invoked by the scrollbar's associated widget
 from an \fB\-xscrollcommand\fR or \fB\-yscrollcommand\fR callback.
 Specifies the visible range to be displayed.
 \fIfirst\fR and \fIlast\fR are real fractions between 0 and 1.
@@ -147,7 +147,7 @@ of individual elements, based on the position and state of the mouse pointer.
 set f [frame .f]
 ttk::scrollbar $f.hsb \-orient horizontal \-command [list $f.t xview]
 ttk::scrollbar $f.vsb \-orient vertical \-command [list $f.t yview]
-text $f.t \-xscrollcommand [list $f.hsb set] \-yscrollcommand [list $f.vsb set] 
+text $f.t \-xscrollcommand [list $f.hsb set] \-yscrollcommand [list $f.vsb set]
 grid $f.t \-row 0 \-column 0 \-sticky nsew
 grid $f.vsb \-row 0 \-column 1 \-sticky nsew
 grid $f.hsb \-row 1 \-column 0 \-sticky nsew
diff --git a/doc/ttk_separator.n b/doc/ttk_separator.n
index d955fc4..fea2701 100644
--- a/doc/ttk_separator.n
+++ b/doc/ttk_separator.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::separator n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -26,8 +26,8 @@ One of \fBhorizontal\fR or \fBvertical\fR.
 Specifies the orientation of the separator.
 .SH "WIDGET COMMAND"
 .PP
-Separator widgets support the standard 
-\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR 
+Separator widgets support the standard
+\fBcget\fR, \fBconfigure\fR, \fBidentify\fR, \fBinstate\fR, and \fBstate\fR
 methods.  No other widget methods are used.
 .SH "SEE ALSO"
 ttk::widget(n)
diff --git a/doc/ttk_spinbox.n b/doc/ttk_spinbox.n
index f10af3d..7ae586f 100644
--- a/doc/ttk_spinbox.n
+++ b/doc/ttk_spinbox.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::spinbox n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -42,7 +42,7 @@ time one of the widget spin buttons is pressed. The up button applies a
 positive increment, the down button applies a negative increment.
 .OP \-values values Values
 This must be a Tcl list of values. If this option is set then this will
-override any range set using the \fB\-from\fR, \fB\-to\fR and 
+override any range set using the \fB\-from\fR, \fB\-to\fR and
 \fB\-increment\fR options. The widget will instead use the values
 specified beginning with the first value.
 .OP \-wrap wrap Wrap
@@ -60,7 +60,7 @@ Specifies a Tcl command to be invoked whenever a spinbutton is invoked.
 See the \fBttk::entry\fR manual for information about indexing characters.
 .SH "VALIDATION"
 .PP
-See the \fBttk::entry\fR manual for information about using the 
+See the \fBttk::entry\fR manual for information about using the
 \fB\-validate\fR and \fB\-validatecommand\fR options.
 .SH "WIDGET COMMAND"
 .PP
diff --git a/doc/ttk_style.n b/doc/ttk_style.n
index dc3bade..985e3cd 100644
--- a/doc/ttk_style.n
+++ b/doc/ttk_style.n
@@ -1,9 +1,9 @@
 '\"
 '\" Copyright (c) 2004 Joe English
-'\" 
+'\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::style n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -23,9 +23,9 @@ which specifies the set of elements making up the widget
 and how they are arranged, along with dynamic and default
 settings for element options.
 By default, the style name is the same as the widget's class;
-this may be overridden by the \fB\-style\fR option. 
+this may be overridden by the \fB\-style\fR option.
 .PP
-A \fItheme\fR is a collection of elements and styles 
+A \fItheme\fR is a collection of elements and styles
 which controls the overall look and feel of an application.
 .SH DESCRIPTION
 .PP
@@ -43,31 +43,31 @@ is used.
 \fBttk::style lookup \fIstyle\fR \fI\-option \fR?\fIstate \fR?\fIdefault\fR??
 Returns the value specified for \fI\-option\fR in style \fIstyle\fR
 in state \fIstate\fR, using the standard lookup rules for element options.
-\fIstate\fR is a list of state names; if omitted, 
+\fIstate\fR is a list of state names; if omitted,
 it defaults to all bits off (the
 .QW normal
 state).
 If the \fIdefault\fR argument is present, it is used as a fallback
 value in case no specification for \fI\-option\fR is found.
-.\" Otherwise -- signal error? return empty string? Leave unspecified for now. 
+.\" Otherwise -- signal error? return empty string? Leave unspecified for now.
 .TP
 \fBttk::style layout \fIstyle\fR ?\fIlayoutSpec\fR?
-Define the widget layout for style \fIstyle\fR.  
+Define the widget layout for style \fIstyle\fR.
 See \fBLAYOUTS\fR below for the format of \fIlayoutSpec\fR.
 If \fIlayoutSpec\fR is omitted, return the layout specification
 for style \fIstyle\fR.
-.TP 
+.TP
 \fBttk::style element create\fR \fIelementName\fR \fItype\fR ?\fIargs...\fR?
 Creates a new element in the current theme of type \fItype\fR.
-The only cross-platform built-in element type is \fIimage\fR 
-(see \fBttk_image\fR(n)) but themes may define other element types 
+The only cross-platform built-in element type is \fIimage\fR
+(see \fBttk_image\fR(n)) but themes may define other element types
 (see \fBTtk_RegisterElementFactory\fR). On suitable versions of Windows
 an element factory is registered to create Windows theme elements
 (see \fBttk_vsapi\fR(n)).
-.TP 
+.TP
 \fBttk::style element names\fR
 Returns the list of elements defined in the current theme.
-.TP 
+.TP
 \fBttk::style element options \fIelement\fR
 Returns the list of \fIelement\fR's options.
 .TP
@@ -79,7 +79,7 @@ If \fB\-settings\fR is present, \fIscript\fR is evaluated in the
 context of the new theme as per \fBttk::style theme settings\fR.
 .TP
 \fBttk::style theme settings \fIthemeName\fR \fIscript\fR
-Temporarily sets the current theme to \fIthemeName\fR, 
+Temporarily sets the current theme to \fIthemeName\fR,
 evaluate \fIscript\fR, then restore the previous theme.
 Typically \fIscript\fR simply defines styles and elements,
 though arbitrary Tcl code may appear.
@@ -99,7 +99,7 @@ The layout mechanism uses a simplified version of the \fBpack\fR
 geometry manager: given an initial cavity,
 each element is allocated a parcel.
 Valid options are:
-.TP 
+.TP
 \fB\-side \fIside\fR
 Specifies which side of the cavity to place the element;
 one of \fBleft\fR, \fBright\fR, \fBtop\fR, or \fBbottom\fR.
diff --git a/doc/ttk_treeview.n b/doc/ttk_treeview.n
index dd83c20..660b076 100644
--- a/doc/ttk_treeview.n
+++ b/doc/ttk_treeview.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk::treeview n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -15,15 +15,15 @@ ttk::treeview \- hierarchical multicolumn data display widget
 .SH DESCRIPTION
 .PP
 The \fBttk::treeview\fR widget displays a hierarchical collection of items.
-Each item has a textual label, an optional image, 
+Each item has a textual label, an optional image,
 and an optional list of data values.
 The data values are displayed in successive columns after
 the tree label.
 .PP
 The order in which data values are displayed may be controlled
-by setting the \fB\-displaycolumns\fR widget option.  
+by setting the \fB\-displaycolumns\fR widget option.
 The tree widget can also display column headings.
-Columns may be accessed by number or by symbolic names 
+Columns may be accessed by number or by symbolic names
 listed in the \fB\-columns\fR widget option;
 see \fBCOLUMN IDENTIFIERS\fR.
 .PP
@@ -40,7 +40,7 @@ and control the appearance of the item.
 .\" @@@HERE: describe selection, focus item
 .PP
 Treeview widgets support horizontal and vertical scrolling with the
-standard \fB\-\fR[\fBxy\fR]\fBscrollcommand\fR options 
+standard \fB\-\fR[\fBxy\fR]\fBscrollcommand\fR options
 and [\fBxy\fR]\fBview\fR widget commands.
 .SO ttk_widget
 \-class	\-cursor	\-takefocus
@@ -48,14 +48,14 @@ and [\fBxy\fR]\fBview\fR widget commands.
 .SE
 .SH "WIDGET-SPECIFIC OPTIONS"
 .OP \-columns columns Columns
-A list of column identifiers, 
+A list of column identifiers,
 specifying the number of columns and their names.
 .\"X: This is a read-only option; it may only be set when the widget is created.
 .OP \-displaycolumns displayColumns DisplayColumns
-A list of column identifiers 
+A list of column identifiers
 (either symbolic names or integer indices)
-specifying which data columns are displayed 
-and the order in which they appear, 
+specifying which data columns are displayed
+and the order in which they appear,
 or the string \fB#all\fP.
 If set to \fB#all\fP (the default),
 all columns are shown in the order given.
@@ -76,7 +76,7 @@ If set to \fBextended\fR (the default), multiple items may be selected.
 If \fBbrowse\fR, only a single item will be selected at a time.
 If \fBnone\fR, the selection will not be changed.
 .PP
-Note that application code and tag bindings can set the selection 
+Note that application code and tag bindings can set the selection
 however they wish, regardless of the value of \fB\-selectmode\fR.
 .RE
 .OP \-show show Show
@@ -84,7 +84,7 @@ A list containing zero or more of the following values, specifying
 which elements of the tree to display.
 .RS
 .IP \fBtree\fR
-Display tree labels in column #0.  
+Display tree labels in column #0.
 .IP \fBheadings\fR
 Display the heading row.
 .PP
@@ -114,7 +114,7 @@ returns the list of children belonging to \fIitem\fR.
 .RS
 .PP
 If \fInewchildren\fR is specified, replaces \fIitem\fR's child list
-with \fInewchildren\fR.  
+with \fInewchildren\fR.
 Items in the old child list not present in the new child list
 are detached from the tree.
 None of the items in \fInewchildren\fR may be an ancestor
@@ -125,7 +125,7 @@ of \fIitem\fR.
 Query or modify the options for the specified \fIcolumn\fR.
 If no \fI\-option\fR is specified,
 returns a dictionary of option/value pairs.
-If a single \fI\-option\fR is specified, 
+If a single \fI\-option\fR is specified,
 returns the value of that option.
 Otherwise, the options are updated with the specified values.
 The following options may be set on each column:
@@ -134,7 +134,7 @@ The following options may be set on each column:
 \fB\-id \fIname\fR
 The column name.  This is a read-only option.
 For example, [\fI$pathname \fBcolumn #\fIn \fB\-id\fR]
-returns the data column associated with display column #\fIn\fR. 
+returns the data column associated with display column #\fIn\fR.
 .TP
 \fB\-anchor\fR
 Specifies how the text in this column should be aligned
@@ -145,7 +145,7 @@ with respect to the cell. One of
 \fB\-minwidth\fR
 The minimum width of the column in pixels.
 The treeview widget will not make the column any smaller than
-\fB\-minwidth\fR when the widget is resized or the user drags a 
+\fB\-minwidth\fR when the widget is resized or the user drags a
 column separator.
 .TP
 \fB\-stretch\fR
@@ -184,7 +184,7 @@ Returns 1 if the specified \fIitem\fR is present in the tree,
 If \fIitem\fR is specified, sets the focus item to \fIitem\fR.
 Otherwise, returns the current focus item, or \fB{}\fR if there is none.
 .\" Need: way to clear the focus item.  {} works for this...
-.TP 
+.TP
 \fIpathname \fBheading \fIcolumn\fR ?\fI\-option \fR?\fIvalue \-option value...\fR?
 Query or modify the heading options for the specified \fIcolumn\fR.
 Valid options are:
@@ -251,13 +251,13 @@ and data columns.
 Returns the integer index of \fIitem\fR within its parent's list of children.
 .TP
 \fIpathname \fBinsert \fIparent index\fR ?\fB\-id \fIid\fR? \fIoptions...\fR
-Creates a new item.  
+Creates a new item.
 \fIparent\fR is the item ID of the parent item,
 or the empty string \fB{}\fR
 to create a new top-level item.
 \fIindex\fR is an integer, or the value \fBend\fR, specifying where in the
 list of \fIparent\fR's children to insert the new item.
-If \fIindex\fR is less than or equal to zero, 
+If \fIindex\fR is less than or equal to zero,
 the new node is inserted at the beginning;
 if \fIindex\fR is greater than or equal to the current number of children,
 it is inserted at the end.
@@ -276,9 +276,9 @@ Test the widget state; see \fIttk::widget(n)\fR.
 .TP
 \fIpathname \fBitem \fIitem\fR ?\fI\-option \fR?\fIvalue \-option value...\fR?
 Query or modify the options for the specified \fIitem\fR.
-If no \fI\-option\fR is specified, 
+If no \fI\-option\fR is specified,
 returns a dictionary of option/value pairs.
-If a single \fI\-option\fR is specified, 
+If a single \fI\-option\fR is specified,
 returns the value of that option.
 Otherwise, the item's options are updated with the specified values.
 See \fBITEM OPTIONS\fR for the list of available options.
@@ -292,7 +292,7 @@ If \fIindex\fR is less than or equal to zero, \fIitem\fR is moved
 to the beginning; if greater than or equal to the number of children,
 it is moved to the end.
 .RE
-.TP 
+.TP
 \fIpathname \fBnext \fIitem\fR
 Returns the identifier of \fIitem\fR's next sibling,
 or \fB{}\fR if \fIitem\fR is the last child of its parent.
@@ -300,7 +300,7 @@ or \fB{}\fR if \fIitem\fR is the last child of its parent.
 \fIpathname \fBparent \fIitem\fR
 Returns the ID of the parent of \fIitem\fR,
 or \fB{}\fR if \fIitem\fR is at the top level of the hierarchy.
-.TP 
+.TP
 \fIpathname \fBprev \fIitem\fR
 Returns the identifier of \fIitem\fR's previous sibling,
 or \fB{}\fR if \fIitem\fR is the first child of its parent.
@@ -308,7 +308,7 @@ or \fB{}\fR if \fIitem\fR is the first child of its parent.
 \fIpathname \fBsee \fIitem\fR
 Ensure that \fIitem\fR is visible:
 sets all of \fIitem\fR's ancestors to \fB\-open true\fR,
-and scrolls the widget if necessary so that \fIitem\fR is 
+and scrolls the widget if necessary so that \fIitem\fR is
 within the visible portion of the tree.
 .TP
 \fIpathname \fBselection\fR ?\fIselop itemList\fR?
@@ -344,7 +344,7 @@ Modify or query the widget state; see \fIttk::widget(n)\fR.
 .RS
 .TP
 \fIpathName \fBtag bind \fItagName \fR?\fIsequence\fR? ?\fIscript\fR?
-Add a Tk binding script for the event sequence \fIsequence\fR 
+Add a Tk binding script for the event sequence \fIsequence\fR
 to the tag \fItagName\fR.  When an X event is delivered to an item,
 binding scripts for each of the item's \fB\-tags\fR are evaluated
 in order as per \fIbindtags(n)\fR.
@@ -353,10 +353,10 @@ in order as per \fIbindtags(n)\fR.
 \fB<KeyPress>\fR, \fB<KeyRelease>\fR, and virtual events
 are sent to the focus item.
 \fB<ButtonPress>\fR, \fB<ButtonRelease>\fR, and \fB<Motion>\fR events
-are sent to the item under the mouse pointer.  
+are sent to the item under the mouse pointer.
 No other event types are supported.
 .PP
-The binding \fIscript\fR undergoes \fB%\fR-substitutions before 
+The binding \fIscript\fR undergoes \fB%\fR-substitutions before
 evaluation; see \fBbind(n)\fR for details.
 .RE
 .TP
@@ -364,10 +364,10 @@ evaluation; see \fBbind(n)\fR for details.
 Query or modify the options for the specified \fItagName\fR.
 If one or more \fIoption/value\fR pairs are specified,
 sets the value of those options for the specified tag.
-If a single \fIoption\fR is specified, 
-returns the value of that option 
+If a single \fIoption\fR is specified,
+returns the value of that option
 (or the empty string if the option has not been specified for \fItagName\fR).
-With no additional arguments, 
+With no additional arguments,
 returns a dictionary of the option settings for \fItagName\fR.
 See \fBTAG OPTIONS\fR for the list of available options.
 .TP
@@ -420,7 +420,7 @@ the extra values are ignored.
 A boolean value indicating whether the item's children
 should be displayed (\fB\-open true\fR) or hidden (\fB\-open false\fR).
 .OP \-tags tags Tags
-A list of tags associated with this item.  
+A list of tags associated with this item.
 .SH "TAG OPTIONS"
 .PP
 The following options may be specified on tags:
@@ -448,8 +448,8 @@ An integer \fIn\fR, specifying the \fIn\fRth data column.
 A string of the form \fB#\fIn\fR, where \fIn\fR is an integer,
 specifying the \fIn\fRth display column.
 .PP
-\fBNOTE:\fR 
-Item \fB\-values\fR may be displayed in a different order than 
+\fBNOTE:\fR
+Item \fB\-values\fR may be displayed in a different order than
 the order in which they are stored.
 .PP
 \fBNOTE:\fR Column #0 always refers to the tree column,
@@ -457,7 +457,7 @@ even if \fB\-show tree\fR is not specified.
 .PP
 A \fIdata column number\fR is an index into an item's \fB\-values\fR list;
 a \fIdisplay column number\fR is the column number in the tree
-where the values are displayed.  
+where the values are displayed.
 Tree labels are displayed in column #0.
 If \fB\-displaycolumns\fR is not set,
 then data column \fIn\fR is displayed in display column \fB#\fIn+1\fR.
diff --git a/doc/ttk_vsapi.n b/doc/ttk_vsapi.n
index 34145fb..334836c 100644
--- a/doc/ttk_vsapi.n
+++ b/doc/ttk_vsapi.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH ttk_vsapi n 8.5 Tk "Tk Themed Widget"
 .so man.macros
 .BS
@@ -72,7 +72,7 @@ If no \fIstateMap\fR parameter is given there is an implicit default
 map of {{} 1}
 .SH "EXAMPLE"
 .PP
-Create a correctly themed close button by changing the layout of 
+Create a correctly themed close button by changing the layout of
 a \fBttk::button\fR(n). This uses the WINDOW part WP_SMALLCLOSEBUTTON
 and as documented the states CBS_DISABLED, CBS_HOT, CBS_NORMAL and
 CBS_PUSHED are mapped from ttk states.
diff --git a/doc/wm.n b/doc/wm.n
index c44ab9b..b1a9fea 100644
--- a/doc/wm.n
+++ b/doc/wm.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH wm n 8.5 Tk "Tk Built-In Commands"
 .so man.macros
 .BS
@@ -796,7 +796,7 @@ Gridded geometry management is typically invoked by turning on
 the \fBsetGrid\fR option for a widget;  it can also be invoked
 with the \fBwm grid\fR command or by calling \fBTk_SetGrid\fR.
 In each of these approaches the particular widget (or sometimes
-code in the application as a whole) specifies the relationship between 
+code in the application as a whole) specifies the relationship between
 integral grid sizes for the window and pixel sizes.
 To return to non-gridded geometry management, invoke
 \fBwm grid\fR with empty argument strings.