CodeSnip Old Code (SVN)

* Changed syntax highlighters to return highlighted code in TEncodedData instead of string. Various encodings are used: RTF uses ASCII, HTML uses UTF8 and nul uses Unicode.
* Made minimum possible changes to affected units - simply convert encoded data back to strings. (Later we'll need to change this).

Changed TRTFBuilder to generate code as TRTF instead of ASCIIString. Modified using units accordingly.

* Corrected URTFUtils unit's RTFMakeSafeText routine to convert Unicode text to correct code page before writing it. Also corrected bug in code that generated Unicode characters.
* Updated TRTFBuilder to take code page parameter to constructor and to use it when writing code page to document and when writing text. Updated TRTFDocProperties similarly.
* Modified all using units to pass code page to TRTFBuilder constructor.

Changed TParsedHiliter to use TStringBuilder to build output string instead of a writer object that wraps a string stream.

* Renamed UTextStreamReader unit as UStringReader and TTextStreamReader class as TStringReader. Changed TStringReader to read its data from a string instead of a stream.
* Updated using Hiliter.UPasLexer unit to use revised unit and class names.
* Updated chain of Hiliter classes that use Hiliter.UPasLexer to pass source code as a string instead of a stream. When streams were used they had to contain Unicode text, so it is safer and easier just to use strings instead.

Removed the ISyntaxHiliter.Hilite method overload that read source and wrote highlighted source using streams. Also removed it from interface implementations, refactoring code as required.

Development branch for CodeSnip release 4.

Initial source is a copy of v3.8.4 (r1075).