This is VERY clever... and Lars found a 'mis speak' or a 'mis doc'
or a 'mis bug'... See the end for details.
> From [EMAIL PROTECTED] Thu Jul 20 21:05:31 2000
> Date: Thu, 20 Jul 2000 23:03:29 -0400 (EDT)
> From: Lars Kellogg-Stedman <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: LPRng: IFHP: common filters and '+='
>
> Hello again,
>
> I'm fiddling with the ifhp.conf on my system, and I'm getting an
> (apparently nonfatal) error from ifhp that I haven't been able to figure
> out.
>
> What I'd like is for the default ifhp entry to contain the following
> file_output_match:
>
> file_output_match = [
> *gif* filter \%s{gif_converter}
> *jpeg* filter \%s{jpeg_converter}
> *tiff* filter \%s{tiff_converter}
>
> *gzip_compressed* filter \%s{gzip_decompress}
> ]
>
> (The image converters all convert from some image format to pnm, which is
> then converted to something else [e.g., postscript] for individual
> printers).
>
> Then, for another printer entry, I'd like to supplement the default
> converters with printer specific ones, like this:
>
> [ apple postscript ps ]
>
>
> Now, this *seems* to be working -- for instance, if I try to print a gzip
> compressed JPEG image, this is what I get:
>
> Filter_status: started FILE_UTIL- '/usr/bin/file -' at 22:55:04.300
> Filter_status: file information =
>'gzip_compressed_data,_deflated,_original_filename,_last_modified:_mon_apr_24_16:05:11_2000,_os:_unix'
> at 22:55:04.583
> Filter_status: initial job type
>'gzip_compressed_data,_deflated,_original_filename,_last_modified:_mon_apr_24_16:05:11_2000,_os:_unix'
> at 22:55:04.584
> Filter_status: decoded job type 'FILTER' at 22:55:04.585
> Filter_status: job type 'FILTER', converter '/usr/bin/gzip -c -d ' at 22:55:04.585
> Filter_status: started CONVERTER- '/usr/bin/gzip -c -d ' at 22:55:04.588
> Filter_status: converter done, output 2559 bytes at 22:55:04.605
> Filter_status: file program = '/usr/bin/file -' at 22:55:04.606
> Filter_status: started FILE_UTIL- '/usr/bin/file -' at 22:55:04.609
> Filter_status: file information = 'jpeg/jfif_compressed_image' at 22:55:04.848
> Filter_status: initial job type 'jpeg/jfif_compressed_image' at 22:55:04.848
> Filter_status: decoded job type 'FILTER' at 22:55:04.849
> Filter_status: job type 'FILTER', converter '/usr/bin/jpegtopnm ' at 22:55:04.849
> Filter_status: started CONVERTER- '/usr/bin/jpegtopnm ' at 22:55:04.852
> Filter_status: 'CONVERTER' error msg 'jpegtopnm: WRITING PPM FILE' at 22:55:05.222
> Filter_status: converter done, output 781 bytes at 22:55:05.229
> Filter_status: file program = '/usr/bin/file -' at 22:55:05.230
> Filter_status: started FILE_UTIL- '/usr/bin/file -' at 22:55:05.233
> Filter_status: file information = 'ppm_"rawbits"_image_data' at 22:55:05.627
> Filter_status: initial job type 'ppm_"rawbits"_image_data' at 22:55:05.627
>
> Filter_status: bad pattern in 'file_output_match' - ']' at 22:55:05.628
>
> Filter_status: decoded job type 'POSTSCRIPT' at 22:55:05.629
> Filter_status: job type 'POSTSCRIPT', converter '/usr/bin/pnmtops ' at 22:55:05.629
> Filter_status: started CONVERTER- '/usr/bin/pnmtops ' at 22:55:05.632
> Filter_status: 'CONVERTER' error msg 'pnmtops: writing color PostScript...' at
>22:55:05.821
> Filter_status: converter done, output 2026 bytes at 22:55:05.826
> Filter_status: transferring 2026 bytes at 22:55:05.845
> Filter_status: 100 percent done at 22:55:05.846
> Filter_status: data sent at 22:55:05.847
> Filter_status: sent job file at 22:55:05.847
> Filter_status: pagecounter 0, pages 0 at 22:55:05.847
> Filter_status: done at 22:55:05.848
>
> What concerns me is the "bad pattern" error:
>
> Filter_status: bad pattern in 'file_output_match' - ']' at 22:55:05.628
>
> This *only* occurs if I use '+=' in the above file_output_match...if I manually
> include the common filters, it works just fine. Is there an obvious
> syntax error that I'm missing?
Nothing. Here is what is happening:
When the first 'file_output_match' was found it was stored as the string:
"[\n\t*gif*\tfilter \%s{gif_converter}\n\t*jpeg*\tfilter \ <- line break added for
formatting
\%s{jpeg_converter}... \n]
Now you hit the second one. This gets appended to the line:
"[\n\t*gif*\tfilter \%s{gif_converter}\n\t*jpeg*\tfilter \ <- line break added for
formatting
\%s{jpeg_converter}... \n] [\n\t*postscript* ps ...
^^^ note the "] [" line.
The "] [" line is what is being complained about.
You can apply the following patch and get a better message:
*** ifhp.c 2000/07/17 02:35:46 1.60
--- ifhp.c 2000/07/21 19:57:52
***************
*** 3213,3219 ****
s = l.list[0];
if( !strcmp(s,"]") || !strcmp(s,"[") ){
if( l.count != 1 ){
! LOGMSG( "Send_job: bad pattern in
'file_output_match' - '%s'", s );
}
continue;
}
--- 3213,3219 ----
s = l.list[0];
if( !strcmp(s,"]") || !strcmp(s,"[") ){
if( l.count != 1 ){
! LOGMSG( "Send_job: bad pattern in
'file_output_match' - '%s'", match.list[i] );
}
continue;
}
You can avoid this problem by using:
file_output_match +=
[
*postscript* ps
*roff* ps \%s{troff_converter}
*text* ps \%s{a2ps_converter}
*pdf* ps \%s{pdf_converter}
*dvi* ps \%s{dvi_converter}
*pnm* ps \%s{pnm_converter}
*ppm* ps \%s{pnm_converter}
]
>
> Thanks,
>
> -- Lars
>
> --
> Lars Kellogg-Stedman <[EMAIL PROTECTED]> --> http://www.larsshack.org/
>
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