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Brightscript array of objects

Marino, Tony

November 21, 2016 16:43

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Hi,

I know enough object oriented programming to be dangerous but that's all.  I'm trying to programmatically write to multiple files using Brightscript.  What I'd like to do is open multiple files and write several strings to each one.  Something like this:

 

file[index] = CreateObject(roCreateFile, "filename[index]")

fileWriter[index] = CreateObject(roReadWriteFile, "filename[index]")

and then use the fileWriter objects to write various strings to each of the files using .SendLine.

How do I do that in Brightscript?

Thanks,

Tony

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8 comments

• 0
  
  ^UD\_$ November 21, 2016 17:08

  Looks like you figured it out more or less.

  Assuming that files are 1.txt, 2.txt,... <n>.txt

  Pseudo code:

   

  Files = CreateObject("roArray")

  http://docs.brightsign.biz/display/DOC/roArray

   

  ' Creating files

  for index 1 to NumberOfFiles

  Files.Push(CreateObject(roCreateFile, index.ToStr()+".txt")

  Next 

   

   

  To reference file 3.txt for example, you would use object Files[3]

   

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• 0
  
  Marino, Tony November 21, 2016 18:00

  Thank you Udi that was helpful.

• 0
  
  Marino, Tony November 21, 2016 20:52

  Hi Udi,

  Still having issues.  Here's the simple script:

  sub main()
   outfile = CreateObject("roArray")

   print "Starting up..."
   for ind = 1 to 5
    outfile.Push(CreateObject("roCreateFile", "File_" + strI(ind) + ".txt")
    print "Index ", ind
   end for
   
  end sub

  It hangs up on the outfile.Push statement.  Any ideas what could be wrong?

• 0
  
  ^UD\_$ November 21, 2016 21:34

  Try this

   

   for ind% = 1 to 5 ' define ind% as integer

  FileName$ = "File_" + strI(ind%) + ".txt"  ' Make sure it is strI (with a capital i, and not lower case L)

  Print "File Name: " + FileName$
    outfile.Push(CreateObject("roCreateFile", FileName$)
    print "Index ", ind%
   end for ' This may need to be next, instead of end for...

   

  Are you coding a BrightAuthor plugin, or is it a custom autorun?

  You should become familiar with the serial port console, which gives you access to the debugger.

  The debugger can save you some time when experimenting with brightscript.

• 0
  
  Marino, Tony November 22, 2016 16:07

  Hi Udi,

  I'm doing a custom autorun.

  Still no luck.  Debugger says outfile is invalid:

  BrightScript Debugger> outfile.Push(CreateObject("roCreateFile", "File_1.txt"))
  'Dot' Operator attempted with invalid BrightScript Component or interface reference. (runtime error &hec) in $LIVECOMPILE(14)

• 0
  
  ^UD\_$ November 22, 2016 16:16

  Hi Tony,

   

  How have you defined outfile.

  It doesn't seem to be a roArray.

  http://docs.brightsign.biz/display/DOC/roArray

   

  Can you share the entire code here?

• 0
  
  Marino, Tony November 22, 2016 16:18

  I found it.  outfile needs to be defined as:

   outfile = CreateObject("roArray", 5, 1)

  Thanks for your help!

• 0
  
  ^UD\_$ November 22, 2016 16:21

  Your'e welcome.

   

  Does this work too?

  outfile = []