1string(5) 2string(0.5) 3string(-0.5) 4string(true()) 5string(false()) 6string(12345678901234567890) 7string(-12345678901234567890) 8concat("titi","toto") 9concat("titi","toto","tata") 10concat("titi",'toto') 11concat("titi",'toto',"tata","last") 12starts-with("tititoto","titi") 13starts-with("tititoto","to") 14contains("tititototata","titi") 15contains("tititototata","toto") 16contains("tititototata","tata") 17contains("tititototata","tita") 18substring("12345",2,3) 19substring("12345",2) 20substring("12345",-4) 21substring("12345",3.4) 22substring("12345",3.6) 23substring("12345",1.5,2.6) 24substring("12345",2.2,2.2) 25substring("12345",0,3) 26substring("12345",-8,10) 27substring("12345",4,-10) 28substring("12345",0 div 0, 3) 29substring("12345",1, 0 div 0) 30substring("12345",1 div 0, 3) 31substring("12345",3,-1 div 0) 32substring("12345",-42, 1 div 0) 33substring("12345",-1 div 0, 1 div 0) 34substring("12345",-1 div 0,5) 35substring("12345",-0.7,4) 36substring("12345",-5000000000,5000000004) 37substring-after("12345678","345") 38substring-after("12345678","999") 39substring-before("12345678","345") 40substring-before("12345678","999") 41string-length("") 42string-length("titi") 43normalize-space(" abc def ") 44normalize-space(" abc def") 45normalize-space("abc def ") 46normalize-space(" abcdef ") 47normalize-space(" abcdef") 48normalize-space("abcdef ") 49 50 51