Markloigc：在fn：replace中转义正则表达式

Question

Can anyone help me how to escape regular expression in fn:replace()

My actual code look like,

Request

let $x := "/SLR/[2009] 3 SLR(R) 0327.xml"
return
(
  fn:replace( $x, $x, "Expected Value")
)

Response : Unexpected response since it has regular expression terms in.

/SLR/[2009] 3 SLR(R) 0327.xml

If i escape regular expression manually, i got the result as expected.

like,

Request

let $x := "/SLR/[2009] 3 SLR(R) 0327.xml"
return
(
  fn:replace( $x, "/SLR/\[2009\] 3 SLR\(R\) 0327.xml", "Expected Value")
)

Response :

Expected Value

My problem is i cant do manually for 1000 of files i had.

Can any one please help me how to make it easier?

Answer 1

The functx library provides a method to do this:

functx:escape-for-regex('[abc]') \[abc\]

http://www.xqueryfunctions.com/xq/functx_escape-for-regex.html