Textpreview for any file using Spotlight

The plugins 10.0pr9 have a new function built in: folderitem.SpotLightTextContentMBS as string. If you call this function, you basicly run the metadata importer for the given file type and get the text content result. On the first call it builts an internal list of the importers and the document types based on the importes in /Library/Spotlight, /System/Library/Spotlight and ~/Library/Spotlight.
This way you can get a text preview from all kinds of file types:

Application Sniffer
- Application
Archives
- Zip archive
- CPIO archive
- BOM-generated compressed CPIO archive
- PKZip archive
- gzip tar archive
- tar archive
Audio
- MP3 audio
- AIFF-C audio
- AIFF audio
- Sound Designer II audio
- Waveform audio
- µLaw audio
- AU audio
- Apple CoreAudio format
Automator
- Automator Workflow Document
Bookmarks Importer
- Safari bookmark
- Safari history item
iChatImporter
- Chat transcript
CoreMedia
- QuickTime movie
- MPEG-4 movie
- protected MPEG-4 audio
- protected MPEG-4 movie
- MPEG-4 audio
- 3GPP movie
- 3GPP2 movie
- MPEG movie
FontImporter
- font
- TrueType® font
- PostScript® font
- TrueType® datafork font
- PostScript® OpenType® font
- TrueType® OpenType® font
- TrueType® collection font
- font suitcase
- PostScript® Type 1 outline font
iCalImporter
- ICS File
Image
- Adobe Photoshop document
- Apple icon image
- MacPaint image
- QuickDraw picture
- QuickTime image
- Graphics Interchange Format (GIF)
- OpenEXR image
- FlashPix image
- Windows bitmap image
- Windows icon image
- Silicon Graphics image
- TGA image
- JPEG image
- JPEG 2000 image
- Portable Network Graphics image
- Radiance
- TIFF image
- X bitmap image
- camera raw image
iPhoto
- iPhoto Spotlight Document
Mail Importer
- Mail Message
- Mail Message Part
MIDI
- MIDI audio
PDF
- Portable Document Format (PDF)
PS
- PostScript
- Encapsulated PostScript
QuartzComposer
- Quartz Composer compostion
Rich Text Sniffer
- rich text (RTF)
- HTML text
- XML text
- text
- text
- rich text with attachments (RTFD)
- web archive
- Open Document text
- Office Open XML word processing document
SystemPrefs Importer
- System Preference pane
vCard
- electronic business card
- Address Book Group Data
- Address Book Person Data
AppleWorks Importer for Spotlight
- AppleWorks Document
GBSpotlightImporter
- GarageBand Project
- Magic GarageBand Template
- MagicMentor GarageBand Template
iWork Importer for Spotlight
- Numbers document
- Numbers Template
- Pages document
- Pages Template
- Keynote document
- Keynote Theme
Microsoft Office
- Microsoft Word 97-2004 document
- Microsoft Word 97-2004 template
- Microsoft Word document
- Microsoft PowerPoint 97-2004 presentation
- Microsoft PowerPoint 97-2004 template
- Microsoft PowerPoint 97-2004 slide show
- Microsoft Excel 97-2004 worksheet
- Microsoft Excel 97-2004 template
- Microsoft Excel Workbook
- Microsoft Excel 97-2004 workspace
- Microsoft PowerPoint document
- Microsoft Excel 2007 spreadsheet (macros enabled)
- Office Open XML word processing document
- Office Open XML word processing template
- Office Open XML spreadsheet
- Office Open XML spreadsheet template
- Office Open XML presentation
- Office Open XML presentation template
- Office Open XML slide show