Re: [Flashcoders] Simplify XML Call
From: Henrik Andersson he...@henke37.cjb.net
To: Flash Coders List flashcoders@chattyfig.figleaf.com
Sent: Friday, August 12, 2011 1:43 PM
Subject: Re: [Flashcoders] Simplify XML Call
ActionScript 3 is a compiled language. There is no such thing as an eval
function in as 3.
Well, that's the crux of my problem, Henrik. How do I get around writing code
that adds just the right number of item units without doing it as a string to
evaluate or writing a switch statement that's obviously limited? Again, here's
my pseudo-code:
var j:String = xml.menu.item[whichItems[0]];
var k:String = new String();
var l:int = level; // I don't know this value in advance: it's
passed to the class
while (l--)
{
k += .item[whichItems[ + String(l) + ]];
}
totalItems = eval(j + k); // eval() doesn't work in AS3, concept
from Python
TIA,
John
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Re: [Flashcoders] Simplify XML Call
Maybe Try
var evalJ = eval(j);
var evalK = eval(k);
totalItems = evalJ + evalK;
Evaluate the strings before you combine them?
Karl
On Aug 13, 2011, at 1:52 PM, John Polk wrote:
From: Henrik Andersson he...@henke37.cjb.net
To: Flash Coders List flashcoders@chattyfig.figleaf.com
Sent: Friday, August 12, 2011 1:43 PM
Subject: Re: [Flashcoders] Simplify XML Call
ActionScript 3 is a compiled language. There is no such thing as an
eval function in as 3.
Well, that's the crux of my problem, Henrik. How do I get around
writing code that adds just the right number of item units without
doing it as a string to evaluate or writing a switch statement
that's obviously limited? Again, here's my pseudo-code:
var j:String = xml.menu.item[whichItems[0]];
var k:String = new String();
var l:int = level; // I don't know this value in
advance: it's passed to the class
while (l--)
{
k += .item[whichItems[ + String(l) + ]];
}
totalItems = eval(j + k); // eval() doesn't work in
AS3, concept from Python
TIA,
John
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Karl DeSaulniers
Design Drumm
http://designdrumm.com
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Re: [Flashcoders] Simplify XML Call
There is still no eval function. ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Simplify XML Call
From: Henrik Andersson he...@henke37.cjb.net
To: Flash Coders List flashcoders@chattyfig.figleaf.com
Sent: Saturday, August 13, 2011 3:37 PM
Subject: Re: [Flashcoders] Simplify XML Call
There is still no eval function.
I know there is no eval fn. Jason Merrill earlier wrote: You just need a
recursive loop to do this. So I would write a function
that handles each node level individually, adding to a class-level
private property called something like, _totalItems. I tried googling [as3
recursive loop xml node] without much luck. Then I think I hit on what Jason
was suggesting:
var x:*;
x = xml.menu.item[whichItems[0]];
var levelsLeft:int = level - 2;
var q:int = 4;
while(levelsLeft--)
{
x = x.item[whichItems[q]];
q--;
}
trace('xxx', x.item.length());
The problem is that for reasons that don't bear explaining I'm not ready to
test this beyond the first level today :-} But I think it (or some tweak)
should work (and I'll clean out that wildcard var).
Thanks,
John
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RE: [Flashcoders] Simplify XML Call
Then I think I hit on what Jason was suggesting:
Not really. :) I think you're over complicating this. This is all I was
suggesting you do from my original suggestion, it's pretty straightforward
(this is a test case you could copy paste and run):
//DUMMY DATA:
var myXML:XML = data
functionalarea type=amountKeying
backgroundImage=images/background.png
exercises
exercise type=NoviceRDS
keyingItems
keyingItem
fileURL=assets/images/simulations/ATC/atc_701201045.png
invertedFileURL=myImages/myFileInverted1.png legible=true amount=78400 /
keyingItem
fileURL=myImages/myFile2.png invertedFileURL=myImages/myFileInverted2.png
legible=false amount=743600 /
keyingItem
fileURL=myImages/myFile3.png invertedFileURL=myImages/myFileInverted3.png
legible=true amount=3213212 /
keyingItem
fileURL=myImages/amountkeying/myFile4.png
invertedFileURL=myImages/myFileInverted4.png legible=true amount=43242323
/
keyingItem
fileURL=myImages/myFile5.png invertedFileURL=myImages/myFileInverted5.png
legible=true amount=78400 /
keyingItem
fileURL=myImages/myFile6.png invertedFileURL=myImages/myFileInverted6.png
legible=false amount=342132 /
keyingItem
fileURL=myImages/myFile7.png invertedFileURL=myImages/myFileInverted7.png
legible=true amount=78400 /
/keyingItems
/exercise
exercise type=ExpertRDS
keyingItems
keyingItem
fileURL=assets/images/simulations/ATC/atc_701201045.png
invertedFileURL=myImages/myFileInverted1.png legible=true amount=78400 /
keyingItem
fileURL=myImages/myFile2.png invertedFileURL=myImages/myFileInverted2.png
legible=false amount=743600 /
keyingItem
fileURL=myImages/myFile3.png invertedFileURL=myImages/myFileInverted3.png
legible=true amount=3213212 /
keyingItem
fileURL=myImages/amountkeying/myFile4.png
invertedFileURL=myImages/myFileInverted4.png legible=true amount=43242323
/
keyingItem
fileURL=myImages/myFile5.png invertedFileURL=myImages/myFileInverted5.png
legible=true amount=78400 /
keyingItem
fileURL=myImages/myFile6.png invertedFileURL=myImages/myFileInverted6.png
legible=false amount=342132 /
keyingItem
fileURL=myImages/myFile7.png invertedFileURL=myImages/myFileInverted7.png
legible=true amount=78400 /
/keyingItems
/exercise
/exercises
/functionalarea
/data
//RECURSIVE FUNCTION:
var totalItems:uint = 0;
function countItems(xmlNode:XML):void
{
var xmlChildren:XMLList = xmlNode.children();
if(xmlChildren.length() 0)
{
for each (var xmlNode:XML in xmlChildren)
{
totalItems++;
countItems(xmlNode); //The recursive call
}
}
}
countItems(myXML);
//RESULT:
trace(totalItems);//Traces 20 - there are 20 nodes in the given XML from the
root down.
Instead of the root, you could start farther in too if you wanted, i.e.:
var exercisesXML:XML = myXML.functionalarea[0].exercises[0];
countItems(exercisesXML);
trace(totalItems); //traces 18 - there are 18 nodes from that level down.
If that's not exactly what you need, it would seem the general concept could be
modified to fit your needs. Hope that helps,
Jason Merrill
Instructional Technology Architect II
Bank of America Global Learning
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-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of John Polk
Sent: Saturday, August 13, 2011 5:58 PM
To: Flash Coders List
Subject: Re: [Flashcoders] Simplify XML Call
From: Henrik Andersson he...@henke37.cjb.net
To: Flash Coders List flashcoders@chattyfig.figleaf.com
Sent: Saturday, August 13, 2011 3:37 PM
Subject: Re: [Flashcoders] Simplify XML Call
There is still no eval function.
I know there is no eval fn. Jason Merrill earlier wrote: You just need a
recursive loop to do this. So I would write a function that handles each node
level individually, adding to a class-level private property called something
like, _totalItems. I tried googling [as3 recursive loop xml node] without
much luck. Then I think I hit on what Jason was suggesting:
var x:*;
x = xml.menu.item[whichItems[0]];
RE: [Flashcoders] Simplify XML Call
And here's another recursive function example for XML, slightly different, with
a more complex structure, showing how to get all values from some attributes in
an XML file (in this case, firstName and lastName), no matter where or how deep
they lie:
var peopleXML:XML =
people
person firstName=Bob lastName=Smith
person firstName=Timmy lastName=Smith /
person firstName=Jenny lastName=Jones
person firstName=Sal lastName=Stephens /
/person
person firstName=Marcia lastName=Marquez
person firstName=Julio lastName=Rogers/
/person
/person
person firstName=Tom lastName=Williams
person firstName=Mary lastName=Jones /
person firstName=Albert lastName=Denniston
person firstName=Barney lastName=Elmington /
person firstName=Campo lastName=Fatigua
person firstName=Harpo lastName=Oprah/
/person
person firstName=Hugo lastName=Boss
person firstName=Benny lastName=Elkins/
person firstName=Sheri lastName=Downing/
/person
/person
/person
person firstName=Marcia lastName=Marquez
person firstName=Manny lastName=Peterson/
/person
person firstName=Joe lastName=Merritt/
/people;
function recurseXML(xml:*):void
{
var xmlList:XMLList = xml.children();
for each (var currentNode:* in xmlList)
{
trace(currentNode.@firstName+ +currentNode.@lastName);
if(currentNode.children()) recurseXML(currentNode);
}
}
recurseXML(peopleXML);
//Traces:
Bob Smith
Timmy Smith
Jenny Jones
Sal Stephens
Marcia Marquez
Julio Rogers
Tom Williams
Mary Jones
Albert Denniston
Barney Elmington
Campo Fatigua
Harpo Oprah
Hugo Boss
Benny Elkins
Sheri Downing
Marcia Marquez
Manny Peterson
Joe Merritt
Jason Merrill
Instructional Technology Architect II
Bank of America Global Learning
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-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill, Jason
Sent: Saturday, August 13, 2011 9:58 PM
To: Flash Coders List
Subject: RE: [Flashcoders] Simplify XML Call
Then I think I hit on what Jason was suggesting:
Not really. :) I think you're over complicating this. This is all I was
suggesting you do from my original suggestion, it's pretty straightforward
(this is a test case you could copy paste and run):
//DUMMY DATA:
var myXML:XML = data
functionalarea type=amountKeying
backgroundImage=images/background.png
exercises
exercise type=NoviceRDS
keyingItems
keyingItem
fileURL=assets/images/simulations/ATC/atc_701201045.png
invertedFileURL=myImages/myFileInverted1.png legible=true amount=78400 /
keyingItem
fileURL=myImages/myFile2.png invertedFileURL=myImages/myFileInverted2.png
legible=false amount=743600 /
keyingItem
fileURL=myImages/myFile3.png invertedFileURL=myImages/myFileInverted3.png
legible=true amount=3213212 /
keyingItem
fileURL=myImages/amountkeying/myFile4.png
invertedFileURL=myImages/myFileInverted4.png legible=true amount=43242323
/
keyingItem
fileURL=myImages/myFile5.png invertedFileURL=myImages/myFileInverted5.png
legible=true amount=78400 /
keyingItem
fileURL=myImages/myFile6.png invertedFileURL=myImages/myFileInverted6.png
legible=false amount=342132 /
keyingItem
fileURL=myImages/myFile7.png invertedFileURL=myImages/myFileInverted7.png
legible=true amount=78400 /
/keyingItems
/exercise
exercise type=ExpertRDS
keyingItems
keyingItem
fileURL=assets/images/simulations/ATC/atc_701201045.png
invertedFileURL=myImages/myFileInverted1.png legible=true amount=78400 /
keyingItem
fileURL=myImages/myFile2.png invertedFileURL=myImages/myFileInverted2.png
legible=false amount=743600 /
keyingItem
fileURL=myImages/myFile3.png invertedFileURL=myImages/myFileInverted3.png
legible=true amount=3213212 /
keyingItem
fileURL=myImages/amountkeying/myFile4.png
invertedFileURL=myImages/myFileInverted4.png legible=true amount=43242323
/
keyingItem
