Uninitialized constant

Kapoue

Hello,

I'm trying to use rexml to read an XML file so I have downloaded rexml
and I use this:
require 'rexml/parsers/pullparser.rb'

if I doing a mistake in the file name sketchup throw an error and with
this line I don't have an error so I suppose that the file is loaded
and my $PATH is ok.

But when I try this:
@xml = REXML::Parsers::PullParser.new( f )

He said: uninitialized constant REXML::Parsers

How can I resolve that?

Thanks in advance

Benjamin

Here is my code
` require 'sketchup.rb'
path=Sketchup.find_support_file("Plugins")
Sketchup::require path+'/rexml/parsers/pullparser.rb'

puts(path+'/rexml/parsers/pullparser.rb')

class LDDFileImport

    # Initialize variables 
    @model = Sketchup.active_model 

    # function to  debug easilly 
    def DebugPuts(message) 
      if $show_debug_LDD_messages == true 
            puts(message) 
      end 
    end 

    #load XML 
    def ParseFile( filename ) 
            DebugPuts("Begin ParseFile") 
            if (filename == nil) then return nil; end 

            model = Sketchup.active_model 
            model.start_operation "Import LDD File" 
            begin 
              DebugPuts "Parsing: "+ filename 
              entities = model.active_entities 

              f = File.new( filename, 'r' ) 
              begin 
                    @xml = REXML::Parsers::PullParser.new( f ) 
                    model.selection.clear 
                    #model.selection.add TopLevel(entities) 
              ensure 
                    f.close 
              end 

              model.commit_operation 

            rescue => bang 
              if (model) 
                    model.abort_operation 
              end 
              UI.messagebox( "Error (in script) while reading \"" + filename +

"":\n" + bang )
end
end
end

Quick Debug Code, can be called by the ruby console

def lddParserTest()
was = $svgImportScriptDebug
begin
$show_debug_LDD_messages = true
f = LDDFileImport.new()
f.ParseFile( 'C:/Users/Admin/Desktop/Lego/3pcslxfml.lxfml' )
ensure
$show_debug_LDD_messages = was
end
end

def DoLDDImport
filename = UI.openpanel "Import lxfml File",nil,"*.lxfml"
if (filename)
f = LDDFileImport.new()
f.ParseFile( filename )
end
end

#--------------------------------------------------------------------------

Register within Sketchup

if(file_loaded("ldd.rb"))
menu = UI.menu("Plugins");
menu.add_item("Import lxfml File...") { DoLDDImport() }
end

#--------------------------------------------------------------------------
file_loaded("ldd.rb")`

thomthom

It's possible you haven't required all the correct files.

On a sidenote, REXML isn't the fastest XML parser as it turns out. Check out this thread: http://forums.sketchucation.com/viewtopic.php?f=180&t=20297

TIG

Try adding:
Dir[path+'/rexml/parsers/'].each{|file|Sketchup::require file}
This will load everything in that directory in case something else is missing...

thomthom

@tig said:

Try adding:
Dir[path+'/rexml/parsers/'].each{|file|Sketchup::require file}
This will load everything in that directory in case something else is missing...

Or use the require_all call.

TIG

Duh!
Something like...
Sketchup::require_all 'path+"/rexml/*/*.rb"'
Which would load all '.rb' rubies in the '/parsers/' folder AND those in any othersub-folders too...

thomthom

Don't think you need to prefix it with Sketchup::... I've only used it once, but I think I just used require_all.

@tig said:

AND those in any other sub-folders too...

Really? I haven't found any other info on the method than this page: http://code.google.com/intl/nb/apis/sketchup/docs/loading.html

TIG

I assumed the Sketchup:: was because it might get scrambled later ?
The * wildcards .../*/*.rb process all folders in the path, and require the .rb files found ?

thomthom

Ah,.. I don't know anything about scrambled files.

I found this though on the sub folder topic: http://forums.sketchucation.com/viewtopic.php?f=15&t=16029&p=124772#p125137
Maybe it does include subfolders.
If so I need to check CityGen's code as we use it there. I thought it only took the rb and rbs files in that folder - not going deeper. I actually think that for CG we don't want it doing that either.

Would have been nice is sub-folders where an optional argument...

TIG

We talk at cross-purposes - I didn't know Jim had made a require_all version...
I thought you meant this one that takes wildcards...tarcieri-require_all-ce01fef7205f87ade3c1e7bd626f0610f01cc013.zip the require_all.rb is in the /lib/ folder...

Since others might not have these perhaps the
Dir[path+'/rexml/parsers/'].each{|file|Sketchup::require file}
based version is safest ?

thomthom

But require_all is a function bundled with SU: http://code.google.com/intl/nb/apis/sketchup/docs/loading.html

@unknownuser said:

The sketchup.rb file defines a require_all function which requires all files with the extension .rb in a given folder.

Another good option for automatically loading Ruby scripts is to create your own folder of Ruby scripts (outside of the Plugins directory) and add that directory to the sketchup.rb file. For example, to load all scripts in the myrubyscriptsdirectory:

Question is, does these third-party solutions override the native method?

thomthom

That's a nice snippet.
Though, I have to see if this other version overwrites the built-in method. I think it can cause problems for CG if suddenly loads sub-folders.

TIG

Never knew require_all was built in...
require_all("C:\myrubyscriptsdirectory\")
You then could easily use it to do subfolders thus:
Dir.foreach("C:\myrubyscriptsdirectory\"){|entry|require_all(entry)if FileTest.directory?(entry)}