Retrieve the SRC from IMG using regular expressions

See the following HTML example.Code

< Div >
< IMG ALT ='' SRC = "/Upload/image/111.jpg"   /> < IMG ALT ='' SRC = '/Upload/image/222.jpg' /> < IMG
SRC = './Upload/image/333.jpg' ALT ='' /> </ Div >
< Div >
< IMG ALT ='' SRC = '/Upload/image/444.jpg' />
< IMG SRC = '../SA/upload/image/333.jpg' ALT ='' />
</ Div >

Now we need to retrieve the SRC from IMG. The regular expression is as follows:

< IMG [ ^> ] * SRC \ s * = \ S * [ ' "] ([\ W/\-\.] *) [ '" ] [^>] *

 

Explanation:

 <IMG [^>]*: Search for the content starting with .

SRC \ s* =\ S*['"] ([\ W/\-\.] *) ['"] [^>] *: Search for the content starting with SRC, ending with>, and taking the content in SRC.

\ S *: 0 or multiple Spaces

 ['"]:Take a 'or'.

 ([\ W/\-\.] *):Take the word character, including _/-. And other characters. (), Indicating to useGroupsMethod to obtain the value.

 

Usage:

Private   Void Findimageinxmlmethod ()
{
String Imgxml =   " <Div> " / Upload / Image / 111 . Jpg \ " /> </div> "
+   @" <Div>

</Div> " ;

String RegEx =   " ] * SRC \ s * = \ s *['\ " ] ([\ W / \\ - \.] * )[ ' \ "] [^>] *";
RegEx imgregex =   New RegEx (RegEx, regexoptions. ignorecase );

Matchcollection = Imgregex. Matches (imgxml );
Foreach (Match matchitem In Matchcollection)
{
String Val = Matchitem. value;
Val = Matchitem. Groups [ 1 ]. Value;
Response. Write (Val +   " <Br/> " );
}
}

Result:

/ Upload / Image / 111 . Jpg
/ Upload / Image / 222 . Jpg
. / Upload / Image / 333 . Jpg
/ Upload / Image / 444 . Jpg
.. / SA / Upload / Image / 333 . Jpg