gedit/gtksourceview: Updating types for syntax highlighting?

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Old 09-17-2009
gedit/gtksourceview: Updating types for syntax highlighting?

I wrote a new .lang file for syntax highlighting a language I use frequently. It works fine, except that it doesn't glob onto the files automatically. Is there a utility I need to run to update a gtksourceview database?

Here's the relevant portion of the code.
<language id="pari" _name="Pari/GP" version="2.0" _section="Scientific">
		<property name="mimetypes">text/x-pari-gp</property>
		<property name="globs">*.gp</property>
		<property name="line-comment-start">\\</property>
		<property name="block-comment-start">/*</property>
		<property name="block-comment-end">*/</property>

---------- Post updated at 09:34 PM ---------- Previous update was at 04:23 AM ----------

The good news is that I've discovered the /usr/share/mime/packages directory and the associated command update-mime-database:
sudo gedit /usr/share/mime/packages/
sudo update-mime-database /usr/share/mime

I've tried inserting code into as well as writing my own pari.xml file:
<?xml version="1.0" encoding="UTF-8"?>

<mime-info xmlns="">

  <mime-type type="text/x-pari-gp">
    <comment>Pari/GP script!</comment>
    <comment xml:lang="en_GB">Pari/GP script</comment>
    <comment xml:lang="fr">script Pari/GP</comment>
    <generic-icon name="text-x-script"/>
    <glob pattern="*.gp" weight="100"/><!-- Must beat out PGP/MIME-encrypted message header -->
    <glob pattern="*.GP"/>
    <glob pattern="*.pari"/>


But even with the frightfully controlling weight of 100, I can't get gnomevfs-info to acknowledge the correct MIME-type for the file. Admittedly, the manual talks about the weight attribute but nothing seems to use it, so maybe that's not implemented. I tried adding in a too-strong magic section that would make some text documents identify as this type:
    <magic priority="100"><!-- Must beat out PGP/MIME-encrypted message header -->
      <match value="default" type="string" offset="1:256"/>
      <match value="forprime" type="string" offset="1:256"/>
      <match value="my" type="string" offset="1:256"/>
      <match value="binomial" type="string" offset="1:256"/>

but to no avail.

The funny part is that when I tested a file with the (otherwise unused) mock extension *.pari, gnomevfs-info and gedit play along nicely. So I know it's not just malformed xml syntax or a bad location or something like that.
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