Error converting RTF files

[organicveggie]

I have a collection of RTF files that just won't convert to MOBI under Calibre 0.7.13. I'm running Kubuntu Linux 10.04 (2.6.32-24). Here's the error from Calibre:

Convert book 3 of 3 (Sacrifice of the Widow)
Resolved conversion options
calibre version: 0.7.13
...
InputFormatPlugin: RTF Input running
on /home/myuser/Documents/books/calibre/Lisa Smedman/Sacrifice of the Widow (1665)/Sacrifice of the Widow - Lisa Smedman.rtf
Converting RTF to XML...
	Preprocessing to convert unicode characters
Traceback (most recent call last):
  File "/tmp/init.py", line 48, in <module>
  File "/home/kovid/build/calibre/src/calibre/utils/ipc/worker.py", line 99, in main
  File "/home/kovid/build/calibre/src/calibre/gui2/convert/gui_conversion.py", line 24, in gui_convert
  File "/home/kovid/build/calibre/src/calibre/ebooks/conversion/plumber.py", line 815, in run
  File "/home/kovid/build/calibre/src/calibre/customize/conversion.py", line 207, in __call__
  File "/home/kovid/build/calibre/src/calibre/ebooks/rtf/input.py", line 195, in convert
ValueError: This RTF file has a feature calibre does not support. Convert it to HTML first and then try it.
no map found
map is "ansicpg874"

Other than manually converting the file to HTML or PDF first, is there anything I can do?

[kovidgoyal]

no, there isn't.

[DoctorOhh]

Originally Posted by organicveggie

Other than manually converting the file to HTML or PDF first, is there anything I can do?

No, but since you have a bunch of RTF files this thread explains how to do batch conversions with free tools. Specifically check out posts 23, 49 and 56. Just substitute RTF every time you see DOC and it should work fine. Any questions ask them in the referenced thread and hopefully some of the folks are still around.

[organicveggie]

Originally Posted by kovidgoyal

no, there isn't.

There error implies that this particular RTF file (and bunch of others I have) have a feature that Calibre does yet support. I'd be happy to contribute a patch, but even looking at the stack trace I'm not sure where to begin.

Any suggestions?

Thanks.

-Veggie

[kovidgoyal]

All the RTF conversion code is in the calibre.ebooks.rtf2xml package (in the directory src/calibre/ebooks/rtf2xml)