Using methods of ParagraphElement to count the words and determine the average length of them in TextFlow
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<!-- sparktextcontrols/FindWords.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:s="library://ns.adobe.com/flex/spark">
<s:layout>
<s:VerticalLayout />
</s:layout>
<fx:Script>
import flashx.textLayout.elements.*;
private function countWords():void {
var leaf:SpanElement = new SpanElement();
leaf = SpanElement(richTxt1.textFlow.getFirstLeaf());
var p:ParagraphElement = new ParagraphElement();
p = leaf.getParagraph();
doSomething(p);
while (leaf = SpanElement(leaf.getNextLeaf())) {
p = leaf.getParagraph();
doSomething(p);
}
wcLabel.text += "# Words: " + wordCount;
lenLabel.text += "Avg length of each word: " + lenTotal/wordCount + " chars";
}
private var wordCount:int = 0;
private var lenTotal:int = 0;
private function doSomething(p:ParagraphElement):void {
var wordBoundary:int = 0;
var prevBoundary:int = 0;
// If these are equal, then there are no more words.
while (wordBoundary != p.findNextWordBoundary(wordBoundary)) {
if (p.findNextWordBoundary(wordBoundary) - wordBoundary > 1) {
wordCount += 1;
}
prevBoundary = wordBoundary;
wordBoundary = p.findNextWordBoundary(wordBoundary);
// If the value is greater than 1, then it's a word, otherwise it's a space.
if (wordBoundary - prevBoundary > 1) {
var s:String = p.getText().substring(prevBoundary, wordBoundary);
lenTotal += s.length;
}
}
}
</fx:Script>
<s:Panel>
<s:RichEditableText id="richTxt1" selectable="true" editable="true"
textAlign="justify" percentWidth="100">
<s:textFlow>
<s:TextFlow>
<s:p>
<s:span>
Lorem ipsum dolor sit amet, consectetur adipiscing
elit.
</s:span>
</s:p>
<s:p>
<s:span>
Cras posuere posuere sem, eu congue orci mattis
quis.
</s:span>
</s:p>
<s:p>
<s:span>
Curabitur pulvinar tellus venenatis ipsum tempus
lobortis.
</s:span>
</s:p>
</s:TextFlow>
</s:textFlow>
</s:RichEditableText>
</s:Panel>
<s:VGroup>
<s:Button label="Count" click="countWords()" />
<s:Label id="wcLabel" />
<s:Label id="lenLabel" />
</s:VGroup>
</s:Application>
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