Finding stacks with spotlight

[David Bovill]

This function finds all your stacks on the hard disk, and optionally
searches for text or words in the file name. It's OSX only and can be done
in transcript but thats slower and avoids problems such as loading all the
stacks into memory:

function spotlight_FindStack fileBit, inFolder
    /*

http://blog.clawpaws.net/post/2007/02/11/Making-OS-X-Fat-Binaries-with-Traditional-Tools

http://developer.apple.com/documentation/Carbon/Conceptual/SpotlightQuery/Concepts/QueryFormat.html
    */

    put "(kMDItemKind = 'Revolution Stack')" into queryExpression

    if fileBit is not empty then
        replace (quote & "'") with empty in fileBit
        get merge("(kMDItemDisplayName = '[[fileBit]]')")
        put space & "&&" && it after queryExpression
    end if

    put "mdfind" && kwote(queryExpression) into someShell
    -- put someShell

    if inFolder is not empty then
        shell_BashParamEscape inFolder
        put space & "-onlyin" && inFolder after someShell
    end if
    return shell(someShell)
end spotlight_FindStack


--> Dependencies | spotlight_FindStack
-
function kwote string
    return quote & string & quote
end kwote

on shell_BashParamEscape @someParam
    replace space with ("\" & space) in someParam
    replace "|" with ("\" & "|") in someParam
end shell_BashParamEscape


It's not fully tested - so feedback is welcome. Also I am trying to search
the contents of the stacks, scripts and or text. Originally Rev scripts
searchable with Spotliht but don't think this is the case any more?

kMDItemTextContent
Contains a text representation of the content of the document. Data in
multiple fields should be combined using a whitespace character as a
separator. An application's Spotlight importer provides the content of this
attribute.

Applications can create queries using this attribute, but are not able to
read the value of this attribute directly.

Value Type:  CFString
Framework:  CoreServices/CoreServices.h
Header:  MDItem.h
Availability:  Available in Mac OS X v10.4 and later.