README (foomatic-filters-4.0.17) | : | README (foomatic-filters-4.0-20160212) | ||
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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. | ||||
5 lines changed or deleted | 5 lines changed or added |