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Posted to dev@tika.apache.org by "Gregory Lepore (Jira)" <ji...@apache.org> on 2023/06/13 13:57:00 UTC
[jira] [Updated] (TIKA-4074) Add magic for TeX Virtual Font format
[ https://issues.apache.org/jira/browse/TIKA-4074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gregory Lepore updated TIKA-4074:
---------------------------------
Description:
The TeX Virtual Font format occurs 6,047 times in the second most recent Common Crawl dataset (and over 3000 in the latest set). No known mime type. The magic is:
F7CA\{9}F300\{4}0010 at offset 0.
The above signature will catch most TeX vf files, however some will be missed. However, there were no false positives so I think it's a good compromise to catch the majority of sample files.
It would be nice to see the results of additional testing.
was:
The TeX Virtual Font format occurs 6,047 times in the second most recent Common Crawl dataset. No known mime type. The magic is:
F7CA\{9}F300\{4}0010 at offset 0.
The above signature will catch most TeX vf files, however some will be missed. However, there were no false positives so I think it's a good compromise to catch the majority of sample files.
It would be nice to see the results of additional testing.
> Add magic for TeX Virtual Font format
> -------------------------------------
>
> Key: TIKA-4074
> URL: https://issues.apache.org/jira/browse/TIKA-4074
> Project: Tika
> Issue Type: Sub-task
> Reporter: Gregory Lepore
> Priority: Minor
> Attachments: aebx10.vf, aebx12.vf, aebxsl10.vf
>
>
> The TeX Virtual Font format occurs 6,047 times in the second most recent Common Crawl dataset (and over 3000 in the latest set). No known mime type. The magic is:
>
> F7CA\{9}F300\{4}0010 at offset 0.
>
> The above signature will catch most TeX vf files, however some will be missed. However, there were no false positives so I think it's a good compromise to catch the majority of sample files.
>
> It would be nice to see the results of additional testing.
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