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Dick Hollenbeck <dick@...>
Tue, 02 Mar 2010 13:21:14 -0600
Thunderbird 22.214.171.124 (X11/20090817)
Switch the LINE_READER being used by DSN_LEXER as owned, and accessible
This paves the way for other kinds of LINE_READERs, such as one which
reads from a
multiline string which comes from the clipboard.
Will still need to:
1) add new additional DSN_LEXER constructor,
2) virtualize the LINE_READER's ReadLine() function
3) create derived class from LINE_READER.
Attractive, self documenting, and human readable text clipboard formats
then become possible using the richio stack.
DSNLEXER assumes 8 bit character data, since the our DSN format is a mix
ASCII and UTF8, but always 8 bits. keywords must be ASCII, symbols can
be UTF8. (More folk lore here.)
So the upcoming mult-line string LINE_READER will have to return 8 bit
characters. This does not tie down the clipboard format as needing to
be 8 bit however. That is still a degree of freedom.