nsICommandLineHandler in Firefox 3.0

Implemented by

 Handles arguments on the command line of an XUL application.

 Each handler is registered in the category "command-line-handler".
 The entries in this category are read in alphabetical order, and each
 category value is treated as a service contractid implementing this
 interface.

 By convention, handler with ordinary priority should begin with "m".

 Example:
 Category             Entry          Value
 command-line-handler b-jsdebug      @mozilla.org/venkman/clh;1
 command-line-handler c-extensions   @mozilla.org/extension-manager/clh;1
 command-line-hanlder m-edit         @mozilla.org/composer/clh;1
 command-line-handler m-irc          @mozilla.org/chatzilla/clh;1
 command-line-handler y-final        @mozilla.org/browser/clh-final;1

 @status UNDER_REVIEW This interface is intended to be frozen, but it isn't
                      frozen yet. Be careful!
 @note What do we do about localizing helpInfo? Do we make each handler do it,
       or provide a generic solution of some sort? Don't freeze this interface
       without thinking about this!

[scriptable, uuid(d4b123df-51ee-48b1-a663-002180e60d3b)]

Attributes

 When the app is launched with the -help argument, this attribute
 is retrieved and displayed to the user (on stdout). The text should
 have embedded newlines which wrap at 76 columns, and should include
 a newline at the end. By convention, the right column which contains flag
 descriptions begins at the 24th character.

readonly attribute AUTF8String helpInfo

Methods

 Process a command line. If this handler finds arguments that it
 understands, it should perform the appropriate actions (such as opening
 a window), and remove the arguments from the command-line array.

 @throw NS_ERROR_ABORT to immediately cease command-line handling
        (if this is STATE_INITIAL_LAUNCH, quits the app).
        All other exceptions are silently ignored.

void handle(in nsICommandLine aCommandLine)