1string(5)
2string(0.5)
3string(-0.5)
4string(true())
5string(false())
6concat("titi","toto")
7concat("titi","toto","tata")
8concat("titi",'toto')
9concat("titi",'toto',"tata","last")
10starts-with("tititoto","titi")
11starts-with("tititoto","to")
12contains("tititototata","titi")
13contains("tititototata","toto")
14contains("tititototata","tata")
15contains("tititototata","tita")
16substring("12345",2,3)
17substring("12345",2)
18substring("12345",-4)
19substring("12345",3.4)
20substring("12345",3.6)
21substring("12345",1.5,2.6)
22substring("12345",2.2,2.2)
23substring("12345",0,3)
24substring("12345",-8,10)
25substring("12345",4,-10)
26substring("12345",0 div 0, 3)
27substring("12345",1, 0 div 0)
28substring("12345",1 div 0, 3)
29substring("12345",3,-1 div 0)
30substring("12345",-42, 1 div 0)
31substring("12345",-1 div 0, 1 div 0)
32substring("12345",-1 div 0,5)
33string-length("")
34string-length("titi")
35