05-30-2011
Buy faster disks, perhaps?
Seriously, I am not aware of an efficient general solution for this kind of problem... Does anybody know one? ...
How is this binary produced? Perhaps you can avoid to write the file twice using e.g. pipe or redirection and appending first the EBCDIC stream. But this assumes that you have somehow access to the program that generates this binary.
My guess is that all bet are lost if you're trying to append the string at the beginning of the file
after it has been created.
Just my 2c,
Loïc
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LEARN ABOUT PHP
xdiff_string_rabdiff
XDIFF_STRING_RABDIFF(3) 1 XDIFF_STRING_RABDIFF(3)
xdiff_string_rabdiff - Make binary diff of two strings using the Rabin's polynomial fingerprinting algorithm
SYNOPSIS
string xdiff_string_bdiff (string $old_data, string $new_data)
DESCRIPTION
Makes a binary diff of two strings and returns the result. The difference between this function and xdiff_string_bdiff(3) is different
algorithm used which should result in faster execution and smaller diff produced. This function works with both text and binary data.
Resulting patch can be later applied using xdiff_string_bpatch(3)/xdiff_file_bpatch(3).
For more details about differences between algorithm used please check libxdiff website.
PARAMETERS
o $old_data
- First string with binary data. It acts as "old" data.
o $new_data
- Second string with binary data. It acts as "new" data.
RETURN VALUES
Returns string with binary diff containing differences between "old" and "new" data or FALSE if an internal error occurred.
SEE ALSO
xdiff_string_bpatch(3).
PHP Documentation Group XDIFF_STRING_RABDIFF(3)