Bwrite » History » Revision 5
Revision 4 (Per Amundsen, 11/02/2018 03:42 AM) → Revision 5/7 (Per Amundsen, 11/02/2018 03:45 AM)
_Added in 1.9.0_ */bwrite [-tac] <filename> <S> [N] <text|%var|&binvar>* Writes [N] bytes from <text|%var|&binvar> to the file starting at byte position <S> or 0, any existing information at this position is overwritten. *Switches* -t - Treat <text|%var|&binvar> as plain text. -a - Disables UTF-8 encoding of characters in the range 0-255, as long as the text contains no characters > 255. TODO -c - Chops the file at the end of the copied bytes. *Parameters* <filename> - File to modify. <S> - Byte position in the file to start writing to. [N] - Byte count from <text|%var|&binvar> to write. <text|%var|&binvar> - Text/%variable/&binvar to write to file. *Example* <pre> alias example { ;Write some text to a file at beginning of the file /bwrite file.txt 0 hello there! ;Read the binary data into binary variable &tempfile /bread $qt(file.txt) 0 $file(file.txt).size &tempfile ;Print the binary variable data as text, outputs 'Hello there!' echo -ag $bvar(&tempfile, 1-).text ;Replace "there!" with "world!" /bwrite file.txt 6 world! ;Read the binary data into binary variable &tempfile /bread $qt(file.txt) 0 $file(file.txt).size &tempfile ;Print the binary variable data as text, outputs 'Hello world!' echo -ag $bvar(&tempfile, 1-).text } </pre>