в 09:19, 26 мая 2010

2010-05-26T09:19:12Z

Admin: 1 версия

2010-05-26T08:14:35Z

1 версия

Новая страница

==Create a global regex to match multiple times in a string==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:RegExp = /abc/g;

var result:Array = example.exec( "abc abc" );
trace( result.index );
trace( example.lastIndex );
}
}
}
</source>

==Create a global regular expression that matches three-letter words==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var regex:RegExp = /\b[a-z]{3}\b/g;
var sentence:String = "This string has two three letter words.";
trace( sentence.search( regex ) );
trace( regex.lastIndex );
trace( sentence.search( regex ) );
}
}
}
</source>

==Create a pattern to match against a string==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:RegExp = /abc/;
trace( example.test( "A string with abc in it" ) );
trace( example.test( "abc" ) );
trace( example.test( "Another string to test against..." ) );
}
}
}
</source>

==Create a regular expression that matches three-letter words==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:RegExp = /\b[a-z]{3}\b/g;
var target:String = "This string has two three letter words";

var result:Array;
while ( ( result = example.exec( target ) ) != null ) {
trace( result );
}
}
}
}
</source>

==Creating a Nongreedy Pattern==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:String = "<b>hello</b>, world!";
trace( example.match( /<.*>/g ) );
}
}
}
</source>

==Force the last index to be past the first matching position==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var regex:RegExp = /\b[a-z]{3}\b/g;
var sentence:String = "This string has two three letter words.";

trace( sentence.search( regex ) );
trace( regex.lastIndex );
trace( sentence.search( regex ) );
regex.lastIndex = 13;
trace( sentence.search( regex ) );
trace( regex.lastIndex );
}
}
}
</source>

==Looking for Pattern Matches==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:String = "ActionScript 3 Cookbook";
trace( example.search( /script/i ) );
trace( example.search( /script/ ) );
}
}
}
</source>

==Return simply whether the string matches the pattern at all.==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var phoneNumberPattern:RegExp = /\d\d\d-\d\d\d-\d\d\d\d/;
trace(phoneNumberPattern.test("347-222-2225")); //true
trace(phoneNumberPattern.test("Call 800-123-4567 now!")); //true
trace(phoneNumberPattern.test("Call now!")); //false
}
}
}
</source>

==Trace the index==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:RegExp = /abc/;
var result:Array = example.exec( "A string with abc in it" );

trace( result );
trace( result.index );

result = example.exec( "A string with no match" );

trace( result );
}
}
}
</source>

← Предыдущая	Версия 09:19, 26 мая 2010
(нет различий)

Flash / Flex / ActionScript/Regular Expressions/Match - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия