Object <- ForwardSortOrder |
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CompareCharacters CompareTextBySortOrder |
Class ForwardSortOrder defines no new attributes.
Fields
No fields are defined by ForwardSortOrder or any of its superclasses.
Instance template
Class ForwardSortOrder cannot be instantiated.
Class definition
Define Class ForwardSortOrder;
abstract;
inherits from Object, HasLocale, HasSortOrder;
operation CompareCharacters(aText: CharactersPointer; var aLength: Unsigned; aFinalPart: Boolean;
bText: CharactersPointer; var bLength: Unsigned; bFinalPart: Boolean;
var currentResult: SignedShort), noMethod;
// Called by CompareTextBySortOrder to compare substrings of a and b.
// On entry:
// aText: substring of a to be compared
// aLength: length of substring of a to be compared
// aFinalPart: whether this is the final substring of a
// bText, bLength, bFinalPart: dito for b
// currentResult: the result of previous calls (initially 0)
// On exit:
// aLength, bLength: the number of characters actually used
// for comparison. If you need to group characters into
// chunks for comparison (such as including combining
// marks or forming "ch" for pre-94 Spanish), you may
// decide to defer comparison of the last characters to
// the next call.
// You should not defer characters if both aFinalPart and
// bFinalPart are set. You must not defer all characters.
// currentResult: the most relevant change found so far.
// If the value on entry was 0, you can set it to any value.
// If the value on entry was anything else, its absolute
// value can only move towards 1.
overrides CompareTextBySortOrder;
end class;