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Source code changes of the file "README" between
foomatic-filters-4.0.17.tar.gz and foomatic-filters-4.0-20160212.tar.gz

About: Foomatic - The XML-based printer/driver database integrates free software printer drivers with all common spoolers (CUPS, LPRng, LPD, GNUlpr, PPR, PDQ, CPS, etc.) in UNIX. Development version.

README  (foomatic-filters-4.0.17):README  (foomatic-filters-4.0-20160212)
skipping to change at line 327 skipping to change at line 327
here and so we can apply the printer/driver features described in the here and so we can apply the printer/driver features described in the
PPD file. For the file conversion filter two subprocesses are started, PPD file. For the file conversion filter two subprocesses are started,
the task of the first one is to pass the already buffered lines into the task of the first one is to pass the already buffered lines into
the filter and then to continue reading standard input (without the filter and then to continue reading standard input (without
parsing the data) to pass the rest of the job to the filter. The parsing the data) to pass the rest of the job to the filter. The
second subprocess is the filter itself, getting its standard input second subprocess is the filter itself, getting its standard input
from the first subprocess and the giving its standard output to the from the first subprocess and the giving its standard output to the
main process. This way the main process has again PostScript as its main process. This way the main process has again PostScript as its
standard input. standard input.
Supported file conversion filters are "a2ps", "enscript", "mpage", and Supported file conversion filters are "a2ps", "enscript", "mpage",
spooler-specific filters. All filters convert plain text to "paps", and spooler-specific filters. All filters convert plain text to
PostScript, "a2ps" also other formats. The conversion filter is always PostScript, "a2ps" also other formats. The conversion filter is always
used when one prints the documentation pages, as they are created as used when one prints the documentation pages, as they are created
plain text, when CUPS is the spooler "pstops" is executed after the as plain text, when CUPS is the spooler "pstops" is executed after
filter so that the default option settings from the PPD file and the filter so that the default option settings from the PPD file and
CUPS-specific options as N-up get applied. On regular printouts one CUPS-specific options as N-up get applied. On regular printouts one
gets always PostScript or PDF when CUPS is the spooler and PostScript gets always PostScript or PDF when CUPS is the spooler and PostScript
in the case of PPR, so the filter is only used for regular printouts in the case of PPR, so the filter is only used for regular printouts
under LPD, LPRng, GNUlpr, PDQ, or without spooler. under LPD, LPRng, GNUlpr, PDQ, or without spooler.
The main process keeps always parsing the PostScript input or feeding The main process keeps always parsing the PostScript input or feeding
through the PDF input, it launches the renderer in one subprocess and through the PDF input, it launches the renderer in one subprocess and
launches an additional subprocess for bracketing the renderer's output launches an additional subprocess for bracketing the renderer's output
with the JCL commands and putting the resulting data to standard with the JCL commands and putting the resulting data to standard
output or to the postpipe. output or to the postpipe.
 End of changes. 2 change blocks. 
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