+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# This file is free software, which comes along with NIT. This software is
+# distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE. You can modify it is you want, provided this header
+# is kept unaltered, and a notification of the changes is added.
+# You are allowed to redistribute it and sell it, alone or is a part of
+# another product.
+
+# Benches for iteration on variants of Text
+module utf_iteration_bench
+
+import opts
+import string_experimentations::utf8_noindex
+
+fun bench_flatstr_iter(nb_cct: Int, loops: Int, strlen: Int)
+do
+ var a = "a" * strlen
+ var x = a.as(FlatString)
+ for i in [0 .. nb_cct] do x = (x + a).as(FlatString)
+ var cnt = 0
+ var c: UnicodeChar
+ while cnt != loops do
+ var it = new FlatStringIter(x)
+ for i in it do
+ c = i
+ end
+ cnt += 1
+ end
+end
+
+fun bench_flatstr_index(nb_cct: Int, loops: Int, strlen: Int)
+do
+ var a = "a" * strlen
+ var x = a.as(FlatString)
+ for i in [0 .. nb_cct] do x = (x + a).as(FlatString)
+ var cnt = 0
+ var c: UnicodeChar
+ var pos = 0
+ while cnt != loops do
+ pos = 0
+ while pos < x.length do
+ c = x.char_at(pos)
+ pos += 1
+ end
+ cnt += 1
+ end
+end
+
+var opts = new OptionContext
+var access_mode = new OptionEnum(["iterator", "index"], "Iteration mode", -1, "--iter-mode")
+var nb_ccts = new OptionInt("Number of concatenations done to the string (in the case of the rope, this will increase its depth)", -1, "--ccts")
+var loops = new OptionInt("Number of loops to be done", -1, "--loops")
+var strlen = new OptionInt("Length of the base string", -1, "--strlen")
+opts.add_option(nb_ccts, loops, strlen, access_mode)
+
+opts.parse(args)
+
+if nb_ccts.value == -1 or loops.value == -1 or strlen.value == -1 then
+ opts.usage
+ exit(-1)
+end
+
+var iterval = access_mode.value
+
+if iterval == 0 then
+ bench_flatstr_iter(nb_ccts.value, loops.value, strlen.value)
+else if iterval == 1 then
+ bench_flatstr_index(nb_ccts.value, loops.value, strlen.value)
+else
+ opts.usage
+ exit(-1)
+end