pattern matching

[neerajmurali]

how we can perform a pattern matching using xsl.i want to check the format of a string(eg: email address) and i also want to check wther a substring is contained in a string

[boen_robot]

You can check whether a certain substring is contained within a string with the contains() function.Regular expression functions however are not a standart part of XSLT 1.0. They are part of XSLT 2.0, and for XSLT 1.0, there are EXSLT regex functions which however are only natively supported in the 4XSLT processor. For MSXML and other Microsoft XSLT processors, you can use the MSXSL implementation by including it in that stylesheet in your own and using calling the function as normal.