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- 20 ' Program to strip all non-printing characters from a file'
- 30 '-
- 40 '
- 50 input% = 1
- 60 output% = 2
- 70 legalchars$ = chr$(9) + chr$(10) + chr$(13)
- 100 input "Input file> "; infile$
- 110 input "Output file> "; outfile$
- 120 open "i", #input%, infile$
- 130 open "o", #output%, outfile$
- 200 if eof(input%) then goto 990
- 210 get #input%, char$
- 215 if ( instr (legalchars$,char$) > 0 ) then goto 220
- 216 if ( (char$ > "~") or (char$ < " ") ) then goto 200
- 220 print #output%, using "&"; char$;
- 500 goto 200
- 990 close #input%
- 991 close #output%
- 999 end
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