CodeSnip Old Code (SVN)

Changed code that accessed _Database.SnippetCount to use Database.SnippetCount instead.
Deleted SnippetCount method from IDatabase and _TDatabase.

Extracted nested TTitleComparer and TTitleEqualityComparer from within TSnippet and made classes in their own right, named TSnippetTitleComparer and TSnippetTitleEqualityComparer.
Modified using code re this renaming.

Removed support for ICategoryView from TDetailPageHTML and removed the now unused TCategoryPageHTML class.

Modified TTagsPageHTML to take account of possible null tag which is used to indicate a list of snippets with no tag.

Added support for HTML page that displays a list of snippets that have a certain tag.

Renamed various interface, class and factory method names in UView.pas to correct the spelling of "Null" in their names.
Modified affected code accordingly.

Renamed IDatabase and Database function, along with internal TDatabase class and PvtDatabase varibale by placing underscore in front of their names. This is to flag the items as "legacy" and to avoid name clashes with new database code being developed.
Modified all code that calls Database to use _Database instead.

Removed assertions that test for nil snippet after calls to Database.Lookup: this method now raises an exception when the lookup fails (see revision 3984).

Changed IQuery.Selection property and its associated getter function to return a ISnippetIDList object instead of a TSnippetList.
Provided a minimal implementation of those changes in TQuery: further work needed to rationalise the change.
Modified code that uses IQuery.Selection as necessary.

Renamed TCategory.Snippets property as SnippetIDs and changed its type to ISnippetIDList.
Made appropriate changes to affected code.