github.com/hirochachacha/plua@v0.0.0-20170217012138-c82f520cc725/stdlib/string/testdata/sub.lua (about)

     1  assert(string.sub("abc", 1) == "abc")
     2  assert(string.sub("abc", 2) == "bc")
     3  assert(string.sub("abc", -1) == "c")
     4  assert(string.sub("abc", 1, 2) == "ab")