Substring functions in XSLT
1 2 substring("ready1234",2,4) 3 => eady 4 substring("ready1234", 4) 5 => dy1234 6 7 substring-after("ready1234","y") 8 => 1234 9 10 substring-before("ready1234","1") 11 => ready
reference: X Lab: String functions [zvong.org]