>># 
>># Copyright 1990, 1991 by the Massachusetts Institute of Technology and
>># UniSoft Group Limited.
>># 
>># Permission to use, copy, modify, distribute, and sell this software and
>># its documentation for any purpose is hereby granted without fee,
>># provided that the above copyright notice appear in all copies and that
>># both that copyright notice and this permission notice appear in
>># supporting documentation, and that the names of MIT and UniSoft not be
>># used in advertising or publicity pertaining to distribution of the
>># software without specific, written prior permission.  MIT and UniSoft
>># make no representations about the suitability of this software for any
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>># 
>># $XConsortium: prsgmtry.m,v 1.8 92/06/11 17:38:29 rws Exp $
>># 
>>#
>>TITLE XParseGeometry CH10
>>ASSERTION A XParseGeometry-1
When the parsestring argument is a string of the form
[=][<width>x<height>][{+-}<xoffset>{+-}<yoffset>] then a
call to XParseGeometry returns a bitwise OR of WidthValue|
HeightValue, XValue|YValue, XNegative or YNegative
depending on whether the height and width are specified,
whether the offsets are specified and on the sign of the
specified offsets respectively.
>>STRATEGY
For geometry strings covering each case of interest
  Parse string with XParseGeometry.
  Verify that correct flags are set.
  For each value
	If corresponding flag is set
	  Verify that value is set correctly.
	else
	  Verify that value is unchanged.
>>ASSERTION A XParseGeometry-2
When the parsestring argument contains just xoffset and
yoffset specifications, then a call to XParseGeometry
returns these values in the x_return and y_return arguments
respectively and the width_return and height_return
arguments are not altered.
>>STRATEGY
Parse the string  "+32768-32768" using XParseGeometry.
Verify that the call returns XValue | YValue | YNegative.
Verify that the x_return argument is set to 32768.
Verify that the y_return argument is set to -32768.
Verify that the width_return argument is unaltered.
Verify that the height_return argument is unaltered.
>>ASSERTION A XParseGeometry-3
When the parsestring argument contains just width and
height specifications, then a call to XParseGeometry returns
these values in the width_return and height_return arguments
respectively and the x_return and y_return arguments are not
altered.
>>STRATEGY
Parse the string  "16385x33768" using XParseGeometry.
Verify that the call returns WidthValue | HeightValue.
Verify that the width_return argument is set to 16385.
Verify that the height_return argument is set to 33768.
Verify that the x_return argument is unaltered.
Verify that the y_return argument is unaltered.
