My instances contain information about displayed characters. They are used to return the results of methods:
Paragraph characterBlockAtPoint: aPoint and
Paragraph characterBlockForIndex: stringIndex.
Any recomposition or movement of a Paragraph can make the instance obsolete.

	comparing
	< <= = > >=

	printing
	printOn:

	private
	moveBy: stringIndex:text:topLeft:extent:

	accessing	top
	copy Overridden because Rectangle does a deepCopy, which goes nuts with the text
	stringIndex Answer the position of the receiver in the string it indexes.
	textLine
	textLine:

	comparing	top
	< Answer whether the string index of the receiver precedes that of aCharacterBlock.
	<= Answer whether the string index of the receiver does not come after that of aCharacterBlock.
	= Answer true if the receiver's species, origin and corner match aRectangle's.
	> Answer whether the string index of the receiver comes after that of aCharacterBlock.
	>= Answer whether the string index of the receiver does not precede that of aCharacterBlock.

	printing	top
	printOn: Refer to the comment in Object|printOn:.

	private	top
	moveBy: Change the corner positions of the receiver so that its area translates by the amount defined by the argument, aPoint.
	stringIndex:text:topLeft:extent: