functx:index-of-string-first
The first position of a substring
Description
The functx:index-of-string-first function returns an integer representing the first position of $substring within $arg. If $arg does not contain $substring, the empty sequence is returned.
Parameters |
Description |
|---|---|
arg:string() |
the string |
substring:string() |
the substring to find |
Examples
XPath |
Results |
|---|---|
functx:index-of-string-first(‘abcdabcdabcd’,’abc’) |
1 |
functx:index-of-string-first(‘abcd’,’abc’) |
1 |
functx:index-of-string-first(‘xxx’,’abc’) |
() |