NOTEPAD TO .RTF FILE CONVERTER
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Mark Ray, 13 Dec 1996, released under GPL.
Translation of the work of Maksim Lin.

This BBC BASIC version has preserved the algorithm of the original:
	Open input and output files
1	Output header block
	Repeat:
		Read a character
2		If &05 then output a code
		If &0A then output linefeed string
		If &8A then ignore
3		If {, \ or } then prefix with a \
		Else output character
		Until end of input file
	Send footer block
	Close files

2: Output a code reads the next character to determine which formatting (bold/italic/etc.) is being toggled and toggles an array of flags accordingly.  The resulting control string is then output.

1: The header block now credits the program as the document author.

3: This has been added, from my understanding of the RTF syntax.


IMPLEMENTATION NOTES:

Works faster on text which isn't right justified.  Beeps when done.

Leaves some Notepad formatting codes, beginning with a >, lying around.  Probably could translate these too, but text is normally reformatted on the PC, anyway.

The bits of the integer variable F% are used as flags and stand for (LSB first): nothing, bold, italic, underline, subscript, superscript and enlarged.  The characters for these effects are held in the variable F$ in the same order: bold, italic ... enlarged.

Occasionally, BPUT# is used, as PRINT# insists on putting a carriage return at the end of the output string.  The "hack" in the original C code does not appear to be necessary here.  Who said C's better than BASIC?  This program took 2 hours total development, while watching TV and with a system crash blanking the memory near the end! 


At the time of writing, my email address (for bug reports, comments, etc.) is M.Ray@UEA.ac.uk - if you develop this code further, I'd like to hear about it.