4 files changed, 976 insertions, 0 deletions

diff --git a/tests/Makefile b/tests/Makefile
index ecf5557b..03e37e4b 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -28,3 +28,5 @@ simple::
 	./driver.sh fact
 	./driver.sh filter
 	./driver.sh jsbspace
+	./driver.sh utf8
+
diff --git a/tests/utf8.py b/tests/utf8.py
new file mode 100644
index 00000000..6036fa12
--- /dev/null
+++ b/tests/utf8.py
@@ -0,0 +1,174 @@
+import unittest
+import base
+
+class Suite(base.Base):
+    
+    def no_falses(self, name):
+        self.start('Utf8/' + name)
+
+        elems = self.driver.find_elements_by_xpath('//pre')
+
+        self.assertNotEqual(0, len(elems))        
+        for e in elems:
+            self.assertEqual("True", e.text)
+    
+    def test_1(self):
+        """Test case: substring (1)"""
+        self.no_falses('substrings')
+
+    def test_2(self):
+        """Test case: strlen (2)"""
+        self.no_falses('strlens')
+        
+    def test_3(self):
+        """Test case: strlenGe (3)"""
+        self.no_falses('strlenGens')
+
+    def test_4(self):
+        """Test case: strcat (4)"""
+        self.no_falses('strcats')
+
+    def test_5(self):
+        """Test case: strsub (5)"""
+        self.no_falses('strsubs')
+
+    def test_6(self):
+        """Test case: strsuffix (6)"""
+        self.no_falses('strsuffixs')
+
+    def test_7(self):
+        """Test case: strchr (7)"""
+        self.no_falses('strchrs')
+        
+    def test_8(self):
+        """Test case: strindex (8)"""
+        self.no_falses('strindexs')
+
+    def test_9(self):
+        """Test case: strindex (9)"""
+        self.no_falses('strsindexs')
+
+    def test_10(self):
+        """Test case: strcspn (10)"""
+        self.no_falses('strcspns')
+
+    def test_11(self):
+        """Test case: str1 (11)"""
+        self.no_falses('str1s')
+
+    def test_12(self):
+        """Test case: isalnum (12)"""
+        self.no_falses('isalnums')
+        
+    def test_13(self):
+        """Test case: isalpha (13)"""
+        self.no_falses('isalphas')
+        
+    def test_14(self):
+        """Test case: isblank (14)"""
+        self.no_falses('isblanks')
+
+    def test_15(self):
+        """Test case: iscntrl (15)"""
+        self.no_falses('iscntrls')
+
+    def test_16(self):
+        """Test case: isdigit (16)"""
+        self.no_falses('isdigits')
+        
+    def test_17(self):
+        """Test case: isgraph (17)"""
+        self.no_falses('isgraphs')
+        
+    def test_18(self):
+        """Test case: islower (18)"""
+        self.no_falses('islowers')
+        
+    def test_19(self):
+        """Test case: isprint (19)"""
+        self.no_falses('isprints')
+
+    def test_20(self):
+        """Test case: ispunct (20)"""
+        self.no_falses('ispuncts')
+
+    def test_21(self):
+        """Test case: isspace (21)"""
+        self.no_falses('isspaces')
+
+    def test_22(self):
+        """Test case: isupper (22)"""
+        self.no_falses('isuppers')
+
+    def test_23(self):
+        """Test case: isxdigit (23)"""
+        self.no_falses('isxdigits')
+
+    def test_24(self):
+        """Test case: toupper (24)"""
+        self.no_falses('touppers')
+
+    def test_25(self):
+        """Test case: ord (25)"""
+        self.no_falses('ord_and_chrs')
+
+    def test_26 (self):
+        """Test case: test_db (26) """
+        self.no_falses('test_db')
+        
+    def full_test (self, name):
+
+        gap = 1000
+        i = 0
+        while (i + gap < 130000):        
+            self.start('Utf8/' + name + '/' + str(i) + '/' + str(i + gap))
+            errors = self.body_text()
+            self.assertEqual("", errors, errors)
+            i = i + gap
+
+
+    def test_89 (self):
+        """Test case: ftTolower """
+        self.full_test("ftTolower")
+
+    def test_90 (self):
+        """Test case: ftToupper """
+        self.full_test("ftToupper")
+
+    def test_91 (self):
+        """Test case: ftIsalpha """
+        self.full_test("ftIsalpha")
+
+    def test_92 (self):
+        """Test case: ftIsdigit """
+        self.full_test("ftIsdigit")
+    
+    def test_93 (self):
+        """Test case: ftIsalnum """
+        self.full_test("ftIsalnum")
+
+    def test_94 (self):
+        """Test case: ftIsspace """
+        self.full_test("ftIsspace")
+
+    def test_95 (self):
+        """Test case: ftIsblank """
+        self.full_test("ftIsblank")
+        
+    def test_96 (self):
+        """Test case: ftIsprint """
+        self.full_test("ftIsprint")
+
+    def test_97 (self):
+        """Test case: ftIsxdigit """
+        self.full_test("ftIsxdigit")
+
+    def test_98 (self):
+        """Test case: ftIsupper """
+        self.full_test("ftIsupper")
+        
+    def test_99 (self):
+        """Test case: ftIslower """
+        self.full_test("ftIslower")
+    '''
+    '''
diff --git a/tests/utf8.ur b/tests/utf8.ur
new file mode 100644
index 00000000..4a89c22b
--- /dev/null
+++ b/tests/utf8.ur
@@ -0,0 +1,794 @@
+
+fun from_m_upto_n f m n =
+    if m < n then
+	<xml>
+	  { f m }
+	  { from_m_upto_n f (m + 1) n }
+	</xml>
+    else
+	<xml></xml>
+
+fun test_fn_both_sides [a ::: Type] (_ : eq a) (_ : show a) (f : unit -> a) (expected : a) (testname : string) : xbody =
+<xml>
+  <p>Server side test: {[testname]}</p>
+  <pre>{[show (f () = expected)]}</pre>	
+  <active code={return <xml><p>Client side test: {[testname]}</p><pre>{[show (f () = expected)]}</pre></xml>}>
+</active>
+</xml>
+
+fun test_fn_sside [a ::: Type] (_ : eq a) (_ : show a) (f : unit -> a) (expected : a) (testname : string) : xbody =
+    <xml>
+      <p>Server side test: {[testname]}</p>
+      <pre>{[show (f () = expected)]}</pre>
+    </xml>
+
+fun test_fn_cside [a ::: Type] (_ : eq a) (_ : show a) (f : unit -> a) (expected : a) (testname : string) : xbody =
+    <xml>
+      <active code={return <xml><p>Client side test: {[testname]}</p><pre>{[show (f () = expected)]}</pre></xml>}>
+      </active>
+    </xml>
+
+
+fun test_fn_cside_ch (f : unit -> char) (expected : char) (testname : string) : xbody =
+    <xml>
+      <active code={let
+		    val computed = f ()
+		    val msgErr = "Expected (S) " ^ (show expected) ^ " [" ^ (show (ord expected)) ^ "] but is (C) " ^
+				 (show computed) ^ "[" ^ (show (ord computed)) ^ "]."
+		    in
+			if computed = expected then
+			    return <xml></xml>
+			else
+			    return <xml><p>ERROR {[testname]}: {[msgErr]}</p></xml>
+		    end}>
+      </active>
+	</xml>
+
+fun test_fn_cside_b (f : unit -> bool) (expected : bool) (testname : string) : xbody =
+    <xml>
+      <active code={let
+		    val computed = f ()
+		    val msgErr = "Expected (S) " ^ (show expected) ^ " but is (C) " ^
+				 (show computed) ^ "."
+		    in
+			if computed = expected then
+			    return <xml></xml>
+			else
+			    return <xml><p>ERROR {[testname]}: {[msgErr]}</p></xml>
+		    end}>
+      </active>
+</xml>
+
+
+fun highencode () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_cside (fn _ => strlen "𝌆𝌇𝌈𝌉") (strlen "𝌆𝌇𝌈𝌉") "high encode - strlen 1"}
+	{test_fn_cside (fn _ => strlen "𝌇𝌈𝌉") (strlen "𝌇𝌈𝌉") "high encode - strlen 2"}
+	{test_fn_cside (fn _ => strlen "𝌈𝌉") (strlen "𝌈𝌉") "high encode - strlen 3"}
+	{test_fn_cside (fn _ => strlen "𝌉") (strlen "𝌉") "high encode - strlen 4"}
+	
+	{test_fn_cside (fn _ => substring "𝌆𝌇𝌈𝌉" 1 3) (substring "𝌆𝌇𝌈𝌉" 1 3) "high encode - substring 1"}
+	{test_fn_cside (fn _ => substring "𝌆𝌇𝌈𝌉" 2 2) (substring "𝌆𝌇𝌈𝌉" 2 2) "high encode - substring 2"}
+	{test_fn_cside (fn _ => substring "𝌆𝌇𝌈𝌉" 3 1) (substring "𝌆𝌇𝌈𝌉" 3 1) "high encode - substring 3"}
+
+	{test_fn_cside (fn _ => strlen (substring "𝌆𝌇𝌈𝌉" 1 3)) (strlen (substring "𝌆𝌇𝌈𝌉" 1 3)) "high encode - strlen of substring 1"}
+	{test_fn_cside (fn _ => strlen (substring "𝌆𝌇𝌈𝌉" 2 2)) (strlen (substring "𝌆𝌇𝌈𝌉" 2 2)) "high encode - strlen of substring 2"}
+	{test_fn_cside (fn _ => strlen (substring "𝌆𝌇𝌈𝌉" 3 1)) (strlen (substring "𝌆𝌇𝌈𝌉" 3 1)) "high encode - strlen of substring 3"}
+
+	{test_fn_cside (fn _ => strsub "𝌆𝌇𝌈𝌉" 0) (strsub "𝌆𝌇𝌈𝌉" 0) "high encode - strsub 1"}
+	{test_fn_cside (fn _ => strsub "𝌆𝌇𝌈𝌉" 1) (strsub "𝌆𝌇𝌈𝌉" 1) "high encode - strsub 2"}
+	{test_fn_cside (fn _ => strsub "𝌆𝌇𝌈𝌉" 2) (strsub "𝌆𝌇𝌈𝌉" 2) "high encode - strsub 3"}
+	{test_fn_cside (fn _ => strsub "𝌆𝌇𝌈𝌉" 3) (strsub "𝌆𝌇𝌈𝌉" 3) "high encode - strsub 4"}
+
+	{test_fn_cside (fn _ => strsuffix "𝌆𝌇𝌈𝌉" 0) (strsuffix "𝌆𝌇𝌈𝌉" 0) "high encode - strsuffix 1"}
+	{test_fn_cside (fn _ => strsuffix "𝌆𝌇𝌈𝌉" 1) (strsuffix "𝌆𝌇𝌈𝌉" 1) "high encode - strsuffix 2"}
+	{test_fn_cside (fn _ => strsuffix "𝌆𝌇𝌈𝌉" 2) (strsuffix "𝌆𝌇𝌈𝌉" 2) "high encode - strsuffix 3"}
+	{test_fn_cside (fn _ => strsuffix "𝌆𝌇𝌈𝌉" 3) (strsuffix "𝌆𝌇𝌈𝌉" 3) "high encode - strsuffix 4"}
+
+	{test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" #"c") (strchr "𝌆𝌇𝌈𝌉" #"c") "high encode - strchr 1"}
+	{test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" (strsub "𝌆" 0)) (strchr "𝌆𝌇𝌈𝌉" (strsub "𝌆" 0)) "high encode - strchr 2"}
+	{test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" (strsub "𝌇" 0)) (strchr "𝌆𝌇𝌈𝌉" (strsub "𝌇" 0)) "high encode - strchr 3"}
+	{test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" (strsub "𝌈" 0)) (strchr "𝌆𝌇𝌈𝌉" (strsub "𝌈" 0)) "high encode - strchr 4"}
+	{test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" (strsub "𝌉" 0)) (strchr "𝌆𝌇𝌈𝌉" (strsub "𝌉" 0)) "high encode - strchr 5"}
+
+	{test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" #"c") (strindex "𝌆𝌇𝌈𝌉" #"c") "high encode - strindex 1"}
+	{test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" (strsub "𝌆" 0)) (strindex "𝌆𝌇𝌈𝌉" (strsub "𝌆" 0)) "high encode - strindex 2"}
+	{test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" (strsub "𝌇" 0)) (strindex "𝌆𝌇𝌈𝌉" (strsub "𝌇" 0)) "high encode - strindex 3"}
+	{test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" (strsub "𝌈" 0)) (strindex "𝌆𝌇𝌈𝌉" (strsub "𝌈" 0)) "high encode - strindex 4"}
+	{test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" (strsub "𝌉" 0)) (strindex "𝌆𝌇𝌈𝌉" (strsub "𝌉" 0)) "high encode - strindex 5"}
+
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "") (strsindex "𝌆𝌇𝌈𝌉" "") "high encode - strsindex 1"}
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "𝌆𝌇𝌈𝌉") (strsindex "𝌆𝌇𝌈𝌉" "𝌆𝌇𝌈𝌉") "high encode - strsindex 2"}
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "𝌆𝌇𝌈c") (strsindex "𝌆𝌇𝌈𝌉" "𝌆𝌇𝌈c") "high encode - strsindex 3"}
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "𝌇𝌈𝌉") (strsindex "𝌆𝌇𝌈𝌉" "𝌇𝌈𝌉") "high encode - strsindex 4"}
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "𝌇𝌈c") (strsindex "𝌆𝌇𝌈𝌉" "𝌇𝌈c") "high encode - strsindex 5"}
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "𝌈𝌉") (strsindex "𝌆𝌇𝌈𝌉" "𝌈𝌉") "high encode - strsindex 6"}
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "𝌈c") (strsindex "𝌆𝌇𝌈𝌉" "𝌈c") "high encode - strsindex 7"}
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "𝌉") (strsindex "𝌆𝌇𝌈𝌉" "𝌉") "high encode - strsindex 8"}
+	{test_fn_cside (fn _ => strsindex "𝌆𝌇𝌈𝌉" "c") (strsindex "𝌆𝌇𝌈𝌉" "c") "high encode - strsindex 9"}
+
+	{test_fn_cside (fn _ => strcspn "𝌆𝌇𝌈𝌉" "") (strcspn "𝌆𝌇𝌈𝌉" "") "high encode - strcspn 1"}
+	{test_fn_cside (fn _ => strcspn "𝌆𝌇𝌈𝌉" "𝌆𝌇𝌈𝌉") (strcspn "𝌆𝌇𝌈𝌉" "𝌆𝌇𝌈𝌉") "high encode - strcspn 2"}
+	{test_fn_cside (fn _ => strcspn "𝌆𝌇𝌈𝌉" "𝌆") (strcspn "𝌆𝌇𝌈𝌉" "𝌆") "high encode - strcspn 3"}
+	{test_fn_cside (fn _ => strcspn "𝌆𝌇𝌈𝌉" "𝌇𝌈𝌉") (strcspn "𝌆𝌇𝌈𝌉" "𝌇𝌈𝌉") "high encode - strcspn 4"}
+	{test_fn_cside (fn _ => strcspn "𝌆𝌇𝌈𝌉" "𝌈𝌉") (strcspn "𝌆𝌇𝌈𝌉" "𝌈𝌉") "high encode - strcspn 5"}
+	{test_fn_cside (fn _ => strcspn "𝌆𝌇𝌈𝌉" "𝌉") (strcspn "𝌆𝌇𝌈𝌉" "𝌉") "high encode - strcspn 6"}
+	
+	{test_fn_cside (fn _ => ord (strsub "𝌆𝌇𝌈𝌉" 0)) (ord (strsub "𝌆𝌇𝌈𝌉" 0)) "high encode - ord 1"}
+	{test_fn_cside (fn _ => ord (strsub "𝌆𝌇𝌈𝌉" 1)) (ord (strsub "𝌆𝌇𝌈𝌉" 1)) "high encode - ord 2"}
+	{test_fn_cside (fn _ => ord (strsub "𝌆𝌇𝌈𝌉" 2)) (ord (strsub "𝌆𝌇𝌈𝌉" 2)) "high encode - ord 3"}
+	{test_fn_cside (fn _ => ord (strsub "𝌆𝌇𝌈𝌉" 3)) (ord (strsub "𝌆𝌇𝌈𝌉" 3)) "high encode - ord 4"}
+
+	{test_fn_cside (fn _ => show (strsub "𝌆𝌇𝌈𝌉" 0)) (show (strsub "𝌆𝌇𝌈𝌉" 0)) "high encode - show 1"}
+	{test_fn_cside (fn _ => show (strsub "𝌆𝌇𝌈𝌉" 1)) (show (strsub "𝌆𝌇𝌈𝌉" 1)) "high encode - show 2"}
+	{test_fn_cside (fn _ => show (strsub "𝌆𝌇𝌈𝌉" 2)) (show (strsub "𝌆𝌇𝌈𝌉" 2)) "high encode - show 3"}
+	{test_fn_cside (fn _ => show (strsub "𝌆𝌇𝌈𝌉" 3)) (show (strsub "𝌆𝌇𝌈𝌉" 3)) "high encode - show 4"}
+
+	</body>
+      </xml>
+
+fun substrings () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => substring "abc" 0 3) "abc" "substrings 1"}
+	{test_fn_both_sides (fn _ => substring "abc" 1 2) "bc" "substrings 2"}
+	{test_fn_both_sides (fn _ => substring "abc" 2 1) "c" "substrings 3"}
+	{test_fn_both_sides (fn _ => substring "ábó" 0 3) "ábó" "substrings 4"}
+	{test_fn_both_sides (fn _ => substring "ábó" 1 2) "bó" "substrings 5"}
+	{test_fn_both_sides (fn _ => substring "ábó" 2 1) "ó" "substrings 6"}
+	{test_fn_both_sides (fn _ => substring "ábó" 0 2) "áb" "substrings 7"}
+	{test_fn_both_sides (fn _ => substring "ábó" 0 1) "á" "substrings 8"}
+	{test_fn_both_sides (fn _ => substring "" 0 0) "" "substrings 9"}
+      </body>
+    </xml>
+
+
+fun strlens () : transaction page = return <xml>
+  <body> 
+    {test_fn_both_sides (fn _ => strlen "abc") 3 "strlen 1"}
+    {test_fn_both_sides (fn _ => strlen "çbc") 3 "strlen 2"}
+    {test_fn_both_sides (fn _ => strlen "çãc") 3 "strlen 3"}
+    {test_fn_both_sides (fn _ => strlen "çãó") 3 "strlen 4"}
+    {test_fn_both_sides (fn _ => strlen "ç") 1 "strlen 5"}
+    {test_fn_both_sides (fn _ => strlen "c") 1 "strlen 6"}
+    {test_fn_both_sides (fn _ => strlen "") 0 "strlen 7"}
+    {test_fn_both_sides (fn _ => strlen "が") 1 "strlen 8"}
+    {test_fn_both_sides (fn _ => strlen "漢") 1 "strlen 9"}
+    {test_fn_both_sides (fn _ => strlen "カ") 1 "strlen 10"}
+    {test_fn_both_sides (fn _ => strlen "وظيفية") 6 "strlen 11"}
+    {test_fn_both_sides (fn _ => strlen "函數") 2 "strlen 12"}
+    {test_fn_both_sides (fn _ => strlen "Функциональное") 14 "strlen 13"}    
+  </body>
+  </xml>
+				       
+fun strlenGens () : transaction page = return <xml>
+  <body>
+    {test_fn_both_sides (fn _ => strlenGe "" 1) False "strlenGe 1"}
+    {test_fn_both_sides (fn _ => strlenGe "" 0) True "strlenGe 2"}
+    {test_fn_both_sides (fn _ => strlenGe "aba" 4) False "strlenGe 3"}
+    {test_fn_both_sides (fn _ => strlenGe "aba" 3) True "strlenGe 4"}
+    {test_fn_both_sides (fn _ => strlenGe "aba" 2) True "strlenGe 5"}
+    {test_fn_both_sides (fn _ => strlenGe "àçá" 4) False "strlenGe 6"}
+    {test_fn_both_sides (fn _ => strlenGe "àçá" 3) True "strlenGe 7"}
+    {test_fn_both_sides (fn _ => strlenGe "àçá" 2) True "strlenGe 8"}    
+  </body>
+  </xml>
+
+type clen = { S : string, L : int }
+
+val clen_eq : eq clen = mkEq (fn a b =>
+			      a.S = b.S && a.L = b.L)
+
+val clen_show : show clen = mkShow (fn a =>
+				   "{S = " ^ a.S ^ ", L = " ^ (show a.L) ^ "}")
+
+fun strcats () : transaction page =
+    let
+	fun test_cat_and_len n a b expS expL =
+	    test_fn_both_sides (fn _ => let val c = strcat a b in {S = c, L = strlen c} end) {S=expS, L=expL} ("strcat " ^ (show n))
+    in
+	return <xml>
+	  <body>
+	    {test_cat_and_len 1 "" "" "" 0}	    
+	    {test_cat_and_len 2 "aa" "bb" "aabb" 4}
+	    {test_cat_and_len 3 "" "bb" "bb" 2}
+	    {test_cat_and_len 4 "aa" "" "aa" 2}
+	    {test_cat_and_len 5 "àà" "áá" "ààáá" 4}
+	    {test_cat_and_len 6 "" "áá" "áá" 2}
+	    {test_cat_and_len 7 "àà" "" "àà" 2}
+	    {test_cat_and_len 8 "函數" "ãã" "函數ãã" 4}
+	    {test_cat_and_len 9 "ç" "ã" "çã" 2}
+	    {test_cat_and_len 10 (show (strsub "ç" 0)) (show (strsub "ã" 0)) "çã" 2}
+	    {test_cat_and_len 11 (show (chr 231)) (show (chr 227)) "çã" 2}
+	  </body>
+	</xml>
+end
+
+fun strsubs () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => strsub "abàç" 0) #"a" "strsub 1"}
+	{test_fn_both_sides (fn _ => strsub "abàç" 1) #"b" "strsub 2"}
+	{test_fn_both_sides (fn _ => strsub "àb" 0) (strsub "à" 0) "strsub 3"}
+	{test_fn_both_sides (fn _ => strsub "abàç" 2) (strsub "à" 0) "strsub 4"}
+	{test_fn_both_sides (fn _ => strsub "abàç" 3) (strsub "ç" 0) "strsub 5"}
+      </body>
+      </xml>
+
+fun strsuffixs () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => strsuffix "abàç" 0) "abàç" "strsuffix 1"}
+	{test_fn_both_sides (fn _ => strsuffix "abàç" 1) "bàç" "strsuffix 2"}
+	{test_fn_both_sides (fn _ => strsuffix "abàç" 2) "àç" "strsuffix 3"}
+	{test_fn_both_sides (fn _ => strsuffix "abàç" 3) "ç" "strsuffix 4"}
+      </body>
+    </xml>
+
+fun strchrs () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => strchr "abàç" #"c") None "strchr 1"}
+	{test_fn_both_sides (fn _ => strchr "abàç" #"a") (Some "abàç") "strchr 2"}
+	{test_fn_both_sides (fn _ => strchr "abàç" #"b") (Some "bàç") "strchr 3"}
+	{test_fn_both_sides (fn _ => strchr "abàç" (strsub "à" 0)) (Some "àç") "strchr 4"}
+	{test_fn_both_sides (fn _ => strchr "abàç" (strsub "ç" 0)) (Some "ç") "strchr 5"}	    
+      </body>
+    </xml>
+
+fun strindexs () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => strindex "abàç" #"c") None "strindex 1"}
+	{test_fn_both_sides (fn _ => strindex "abàç" #"a") (Some 0) "strindex 2"}
+	{test_fn_both_sides (fn _ => strindex "abàç" #"b") (Some 1) "strindex 3"}
+	{test_fn_both_sides (fn _ => strindex "abàç" (strsub "à" 0)) (Some 2) "strindex 4"}
+	{test_fn_both_sides (fn _ => strindex "abàç" (strsub "ç" 0)) (Some 3) "strindex 5"}	
+      </body>
+    </xml>
+
+fun strsindexs () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => strsindex "abàç" "") (Some 0) "strsindex 1"}
+	{test_fn_both_sides (fn _ => strsindex "abàç" "abàç") (Some 0) "strsindex 2"}
+	{test_fn_both_sides (fn _ => strsindex "abàç" "abàc") None "strsindex 3"}
+	{test_fn_both_sides (fn _ => strsindex "abàç" "bàç") (Some 1) "strsindex 4"}
+	{test_fn_both_sides (fn _ => strsindex "abàç" "bàc") None "strsindex 5"}
+	{test_fn_both_sides (fn _ => strsindex "abàç" "àç") (Some 2) "strsindex 6"}
+	{test_fn_both_sides (fn _ => strsindex "abàç" "àc") None "strsindex 7"}
+	{test_fn_both_sides (fn _ => strsindex "abàç" "ç") (Some 3) "strsindex 8"}
+	{test_fn_both_sides (fn _ => strsindex "abàç" "c") None "strsindex 9"}
+      </body>
+    </xml>
+	
+fun strcspns () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => strcspn "abàç" "") 4 "strcspn 1"}
+	{test_fn_both_sides (fn _ => strcspn "abàç" "abàç") 0 "strcspn 2"}
+	{test_fn_both_sides (fn _ => strcspn "abàç" "a") 0 "strcspn 3"}
+	{test_fn_both_sides (fn _ => strcspn "abàç" "bàç") 1 "strcspn 4"}
+	{test_fn_both_sides (fn _ => strcspn "abàç" "àç") 2 "strcspn 5"}
+	{test_fn_both_sides (fn _ => strcspn "abàç" "ç") 3 "strcspn 6"}	
+      </body>
+      </xml>
+
+fun str1s () : transaction page = return <xml>
+  <body>
+    {test_fn_both_sides (fn _ => str1 #"a") "a" "str1 1"}
+    {test_fn_both_sides (fn _ => str1 (strsub "à" 0)) "à" "str1 2"}
+    {test_fn_both_sides (fn _ => str1 (strsub "aá" 1)) "á" "str1 3"}    
+  </body>
+  </xml>
+
+fun isalnums () : transaction page = return <xml>
+  <body>
+    {test_fn_both_sides (fn _ => isalnum #"a") True "isalnum 1"}
+    {test_fn_both_sides (fn _ => isalnum #"a") True "isalnum 2"}
+    {test_fn_both_sides (fn _ => isalnum (strsub "à" 0)) True "isalnum 3"}
+    {test_fn_both_sides (fn _ => isalnum #"A") True "isalnum 4"}
+    {test_fn_both_sides (fn _ => isalnum (strsub "À" 0)) True "isalnum 5"}
+    {test_fn_both_sides (fn _ => isalnum #"1") True "isalnum 6"}
+    {test_fn_both_sides (fn _ => not (isalnum #"!")) True "isalnum 7"}
+    {test_fn_both_sides (fn _ => not (isalnum #"#")) True "isalnum 8"}
+    {test_fn_both_sides (fn _ => not (isalnum #" ")) True "isalnum 9"}
+  </body>
+</xml>
+
+fun isalphas () : transaction page = return <xml>
+  <body>
+    {test_fn_both_sides (fn _ => isalpha #"a") True "isalpha 1"}
+    {test_fn_both_sides (fn _ => isalpha (strsub "à" 0)) True "isalpha 2"}
+    {test_fn_both_sides (fn _ => isalpha #"A") True "isalpha 3"}
+    {test_fn_both_sides (fn _ => isalpha (strsub "À" 0)) True "isalpha 4"}
+    {test_fn_both_sides (fn _ => not (isalpha #"1")) True "isalpha 5"}
+    {test_fn_both_sides (fn _ => not (isalpha #"!")) True "isalpha 6"}
+    {test_fn_both_sides (fn _ => not (isalpha #"#")) True "isalpha 7"}
+    {test_fn_both_sides (fn _ => not (isalpha #" ")) True "isalpha 8"}
+  </body>
+</xml>
+
+fun isblanks () : transaction page = 
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => not (isblank #"a")) True "isblank 1"}
+	{test_fn_both_sides (fn _ => not (isblank (strsub "à" 0))) True "isblank 2"}
+	{test_fn_both_sides (fn _ => not (isblank #"A")) True "isblank 3"}
+	{test_fn_both_sides (fn _ => not (isblank (strsub "À" 0))) True "isblank 4"}
+	{test_fn_both_sides (fn _ => not (isblank #"1")) True "isblank 5"}
+	{test_fn_both_sides (fn _ => not (isblank #"!")) True "isblank 6"}
+	{test_fn_both_sides (fn _ => not (isblank #"#")) True "isblank 7"}
+	{test_fn_both_sides (fn _ => isblank #" ") True "isblank 8"}
+	{test_fn_both_sides (fn _ => isblank #"\t") True "isblank 9"}
+	{test_fn_both_sides (fn _ => not (isblank #"\n")) True "isblank 10"}
+      </body>
+    </xml>
+
+fun iscntrls () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_sside (fn _ => not (iscntrl #"a")) True "iscntrl 1"}
+	{test_fn_sside (fn _ => not (iscntrl (strsub "à" 0))) True "iscntrl 2"}
+	{test_fn_sside (fn _ => not (iscntrl #"A")) True "iscntrl 3"}
+	{test_fn_sside (fn _ => not (iscntrl (strsub "À" 0))) True "iscntrl 4"}
+	{test_fn_sside (fn _ => not (iscntrl #"1")) True "iscntrl 5"}
+	{test_fn_sside (fn _ => not (iscntrl #"!")) True "iscntrl 6"}
+	{test_fn_sside (fn _ => not (iscntrl #"#")) True "iscntrl 7"}
+	{test_fn_sside (fn _ => not (iscntrl #" ")) True "iscntrl 8"}
+	{test_fn_sside (fn _ => iscntrl #"\t") True "iscntrl 9"}
+	{test_fn_sside (fn _ => iscntrl #"\n") True "iscntrl 10"}
+      </body>
+      </xml>
+
+fun isdigits () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => not (isdigit #"a")) True "isdigit 1"}
+	{test_fn_both_sides (fn _ => not (isdigit (strsub "à" 0))) True "isdigit 2"}
+	{test_fn_both_sides (fn _ => not (isdigit #"A")) True "isdigit 3"}
+	{test_fn_both_sides (fn _ => not (isdigit (strsub "À" 0))) True "isdigit 4"}
+	{test_fn_both_sides (fn _ => isdigit #"1") True "isdigit 5"}
+	{test_fn_both_sides (fn _ => not (isdigit #"!")) True "isdigit 6"}
+	{test_fn_both_sides (fn _ => not (isdigit #"#")) True "isdigit 7"}
+	{test_fn_both_sides (fn _ => not (isdigit #" ")) True "isdigit 8"}
+	{test_fn_both_sides (fn _ => not (isdigit #"\t")) True "isdigit 9"}
+	{test_fn_both_sides (fn _ => not (isdigit #"\n")) True "isdigit 10"}
+      </body>
+    </xml>
+
+fun isgraphs () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_sside (fn _ => isgraph #"a") True "isgraph 1"}
+	{test_fn_sside (fn _ => isgraph (strsub "à" 0)) True "isgraph 2"}
+	{test_fn_sside (fn _ => isgraph #"A") True "isgraph 3"}
+	{test_fn_sside (fn _ => isgraph (strsub "À" 0)) True "isgraph 4"}
+	{test_fn_sside (fn _ => isgraph #"1") True "isgraph 5"}
+	{test_fn_sside (fn _ => isgraph #"!") True "isgraph 6"}
+	{test_fn_sside (fn _ => isgraph #"#") True "isgraph 7"}
+	{test_fn_sside (fn _ => not (isgraph #" ")) True "isgraph 8"}
+	{test_fn_sside (fn _ => not (isgraph #"\t")) True "isgraph 9"}
+	{test_fn_sside (fn _ => not (isdigit #"\n")) True "isgraph 10"}
+      </body>
+    </xml>
+
+fun islowers () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => islower #"a") True "islower 1"}
+	{test_fn_both_sides (fn _ => islower (strsub "à" 0)) True "islower 2"}
+	{test_fn_both_sides (fn _ => not (islower #"A")) True "islower 3"}
+	{test_fn_both_sides (fn _ => not (islower (strsub "À" 0))) True "islower 4"}
+	{test_fn_both_sides (fn _ => not (islower #"1")) True "islower 5"}
+	{test_fn_both_sides (fn _ => not (islower #"!")) True "islower 6"}
+	{test_fn_both_sides (fn _ => not (islower #"#")) True "islower 7"}
+	{test_fn_both_sides (fn _ => not (islower #" ")) True "islower 8"}
+	{test_fn_both_sides (fn _ => not (islower #"\t")) True "islower 9"}
+	{test_fn_both_sides (fn _ => not (islower #"\n")) True "islower 10"}
+      </body>
+      </xml>
+
+fun isprints () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => isprint #"a") True "isprint 1"}
+	{test_fn_both_sides (fn _ => isprint (strsub "à" 0)) True "isprint 2"}
+	{test_fn_both_sides (fn _ => isprint #"A") True "isprint 3"}
+	{test_fn_both_sides (fn _ => isprint (strsub "À" 0)) True "isprint 4"}
+	{test_fn_both_sides (fn _ => isprint #"1") True "isprint 5"}
+	{test_fn_both_sides (fn _ => isprint #"!") True "isprint 6"}
+	{test_fn_both_sides (fn _ => isprint #"#") True "isprint 7"}
+	{test_fn_both_sides (fn _ => isprint #" ") True "isprint 8"}
+	{test_fn_both_sides (fn _ => not (isprint #"\t")) True "isprint 9"}
+	{test_fn_both_sides (fn _ => not (isprint #"\n")) True "isprint 10"}
+      </body>
+      </xml>
+
+fun ispuncts () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_sside (fn _ => not (ispunct #"a")) True "ispunct 1"}
+	{test_fn_sside (fn _ => not (ispunct (strsub "à" 0))) True "ispunct 2"}
+	{test_fn_sside (fn _ => not (ispunct #"A")) True "ispunct 3"}
+	{test_fn_sside (fn _ => not (ispunct (strsub "À" 0))) True "ispunct 4"}
+	{test_fn_sside (fn _ => not (ispunct #"1")) True "ispunct 5"}
+	{test_fn_sside (fn _ => ispunct #"!") True "ispunct 6"}
+	{test_fn_sside (fn _ => ispunct #"#") True "ispunct 7"}
+	{test_fn_sside (fn _ => not (ispunct #" ")) True "ispunct 8"}
+	{test_fn_sside (fn _ => not (isprint #"\t")) True "ispunct 9"}
+	{test_fn_sside (fn _ => not (isprint #"\n")) True "ispunct 10"}
+      </body>
+      </xml>
+
+fun isspaces () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => not (isspace #"a")) True "isspace 1"}
+	{test_fn_both_sides (fn _ => not (isspace (strsub "à" 0))) True "isspace 2"}
+	{test_fn_both_sides (fn _ => not (isspace #"A")) True "isspace 3"}
+	{test_fn_both_sides (fn _ => not (isspace (strsub "À" 0))) True "isspace 4"}
+	{test_fn_both_sides (fn _ => not (isspace #"1")) True "isspace 5"}
+	{test_fn_both_sides (fn _ => not (isspace #"!")) True "isspace 6"}
+	{test_fn_both_sides (fn _ => not (isspace #"#")) True "isspace 7"}
+	{test_fn_both_sides (fn _ => isspace #" ") True "isspace 8"}
+	{test_fn_both_sides (fn _ => isspace #"\t") True "isspace 9"}
+	{test_fn_both_sides (fn _ => isspace #"\n") True "isspace 10"}
+      </body>
+    </xml>
+    
+fun isuppers () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => not (isupper #"a")) True "isupper 1"}
+	{test_fn_both_sides (fn _ => not (isupper (strsub "à" 0))) True "isupper 2"}
+	{test_fn_both_sides (fn _ => isupper #"A") True "isupper 3"}
+	{test_fn_both_sides (fn _ => isupper (strsub "À" 0)) True "isupper 4"}
+	{test_fn_both_sides (fn _ => not (isupper #"1")) True "isupper 5"}
+	{test_fn_both_sides (fn _ => not (isupper #"!")) True "isupper 6"}
+	{test_fn_both_sides (fn _ => not (isupper #"#")) True "isupper 7"}
+	{test_fn_both_sides (fn _ => not (isupper #" ")) True "isupper 8"}
+	{test_fn_both_sides (fn _ => not (isupper #"\t")) True "isupper 9"}
+	{test_fn_both_sides (fn _ => not (isupper #"\n")) True "isupper 10"}
+      </body>
+      </xml>
+
+fun isxdigits () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => isxdigit #"a") True "isxdigit 1"}
+	{test_fn_both_sides (fn _ => not (isxdigit (strsub "à" 0))) True "isxdigit 2"}
+	{test_fn_both_sides (fn _ => isxdigit #"A") True "isxdigit 3"}
+	{test_fn_both_sides (fn _ => not (isxdigit (strsub "À" 0))) True "isxdigit 4"}
+	{test_fn_both_sides (fn _ => isxdigit #"1") True "isxdigit 5"}
+	{test_fn_both_sides (fn _ => not (isxdigit #"!")) True "isxdigit 6"}
+	{test_fn_both_sides (fn _ => not (isxdigit #"#")) True "isxdigit 7"}
+	{test_fn_both_sides (fn _ => not (isxdigit #" ")) True "isxdigit 8"}
+	{test_fn_both_sides (fn _ => not (isxdigit #"\t")) True "isxdigit 9"}
+	{test_fn_both_sides (fn _ => not (isxdigit #"\n")) True "isxdigit 10"}
+      </body>
+      </xml>
+
+fun tolowers () : transaction page =
+    let
+	fun lower_of a _ =
+	    tolower a
+    in
+	return <xml>
+	  <body>
+	    {test_fn_both_sides (lower_of #"A") #"a" "tolower 1"}
+	    {test_fn_both_sides (lower_of #"a") #"a" "tolower 2"}
+	    {test_fn_both_sides (lower_of (strsub "á" 0)) (strsub "á" 0) "tolower 3"}
+	    {test_fn_both_sides (lower_of (strsub "Á" 0)) (strsub "á" 0) "tolower 4"}
+	    {test_fn_both_sides (lower_of #"1") #"1" "tolower 5"}
+	    {test_fn_cside (lower_of (strsub "ß" 0)) (lower_of (strsub "ß" 0) ()) "tolower 6"}
+	  </body>
+	</xml>
+    end
+    
+fun touppers () : transaction page =
+    let
+	fun upper_of a _ =
+	    toupper a
+    in
+	return <xml>
+	  <body>
+	    {test_fn_both_sides (upper_of #"A") #"A" "toupper 1"}
+	    {test_fn_both_sides (upper_of #"a") #"A" "toupper 2"}
+	    {test_fn_both_sides (upper_of (strsub "á" 0)) (strsub "Á" 0) "toupper 3"}
+	    {test_fn_both_sides (upper_of (strsub "Á" 0)) (strsub "Á" 0) "toupper 4"}
+	    {test_fn_both_sides (upper_of #"1") #"1" "toupper 5"}
+	    
+	    {test_fn_cside (upper_of (strsub "ß" 0)) (upper_of (strsub "ß" 0) ()) "toupper 6"}
+	  </body>
+	</xml>
+    end
+    
+fun ord_and_chrs () : transaction page =
+    return <xml>
+      <body>
+	{test_fn_both_sides (fn _ => chr (ord #"A")) #"A" "ord => chr 1"}
+	{test_fn_both_sides (fn _ => chr (ord #"a")) #"a" "ord => chr 2"}
+	{test_fn_both_sides (fn _ => chr (ord (strsub "á" 0))) (strsub "á" 0) "ord => chr 3"}
+	{test_fn_both_sides (fn _ => chr (ord (strsub "Á" 0))) (strsub "Á" 0) "ord => chr 4"}
+	{test_fn_both_sides (fn _ => chr (ord #"1")) #"1" "ord => chr 5"}
+	{test_fn_both_sides (fn _ => chr (ord #"\n")) #"\n" "ord => chr 6"}
+	{test_fn_both_sides (fn _ => chr (ord (strsub "が" 0))) (strsub "が" 0) "ord => chr 7"}
+	{test_fn_both_sides (fn _ => chr (ord (strsub "漢" 0))) (strsub "漢" 0) "ord => chr 8"}
+	{test_fn_both_sides (fn _ => chr (ord (strsub "カ" 0))) (strsub "カ" 0) "ord => chr 9"}	
+      </body>
+    </xml>
+
+fun test_ords () : transaction page =
+    let
+	fun ord_of c _ =
+	    ord c
+    in
+	return <xml>
+	  <body>
+	    {test_fn_cside (ord_of (strsub "a" 0)) (ord_of (strsub "a" 0) ()) "test ord 1"}
+	    {test_fn_cside (ord_of (strsub "á" 0)) (ord_of (strsub "á" 0) ()) "test ord 2"}
+	    {test_fn_cside (ord_of (strsub "5" 0)) (ord_of (strsub "5" 0) ()) "test ord 3"}
+	    {test_fn_cside (ord_of (strsub "が" 0)) (ord_of (strsub "が" 0) ()) "test ord 4"}
+	    {test_fn_cside (ord_of (strsub "漢" 0)) (ord_of (strsub "漢" 0) ()) "test ord 5"}
+	    {test_fn_cside (ord_of (strsub "カ" 0)) (ord_of (strsub "カ" 0) ()) "test ord 6"}
+	  </body>
+	</xml>
+    end
+    
+table t : { Id : int, Text : string }
+
+fun test_db () : transaction page =
+    let
+	val s1 = "abc"
+	val s2 = "çãó"
+	val s3 = "が"
+	val s4 = "漢"
+	val s5 = "カ"
+	val s6 = "وظيفية"
+
+	fun test_str_and_len n c expS expL =
+	    test_fn_both_sides (fn _ => {S = c, L = strlen c}) {S=expS, L=expL} ("test_db " ^ (show n))
+		 
+    in
+    dml (INSERT INTO t (Id, Text) VALUES({[1]}, {[s1]}));
+    t1 <- oneRow (SELECT t.Text FROM t WHERE t.Id = 1);
+
+    dml (INSERT INTO t (Id, Text) VALUES({[2]}, {[s2]}));
+    t2 <- oneRow (SELECT t.Text FROM t WHERE t.Id = 2);
+
+    dml (INSERT INTO t (Id, Text) VALUES({[3]}, {[s3]}));
+    t3 <- oneRow (SELECT t.Text FROM t WHERE t.Id = 3);
+
+    dml (INSERT INTO t (Id, Text) VALUES({[4]}, {[s4]}));
+    t4 <- oneRow (SELECT t.Text FROM t WHERE t.Id = 4);
+
+    dml (INSERT INTO t (Id, Text) VALUES({[5]}, {[s5]}));
+    t5 <- oneRow (SELECT t.Text FROM t WHERE t.Id = 5);
+
+    dml (INSERT INTO t (Id, Text) VALUES({[6]}, {[s6]}));
+    t6 <- oneRow (SELECT t.Text FROM t WHERE t.Id = 6);
+
+    return <xml>
+      <body>
+	{test_str_and_len 1 t1.T.Text s1 (strlen s1)}
+	{test_str_and_len 2 t2.T.Text s2 (strlen s2)}
+	{test_str_and_len 3 t3.T.Text s3 (strlen s3)}
+	{test_str_and_len 4 t4.T.Text s4 (strlen s4)}
+	{test_str_and_len 5 t5.T.Text s5 (strlen s5)}
+	{test_str_and_len 6 t6.T.Text s6 (strlen s6)}
+      </body>
+      </xml>
+    end
+
+and ftTolower (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_ch (fn _ => tolower (chr n)) (tolower (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+
+and ftToupper (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_ch (fn _ => toupper (chr n)) (toupper (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+
+and ftIsalpha (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => isalpha (chr n)) (isalpha (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+
+and ftIsdigit (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => isdigit (chr n)) (isdigit (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+    
+and ftIsalnum (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => isalnum (chr n)) (isalnum (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+
+and ftIsspace (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => isspace (chr n)) (isspace (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+
+and ftIsblank (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => isblank (chr n)) (isblank (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+    
+and ftIsprint (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => isprint (chr n)) (isprint (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+    
+and ftIsxdigit (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => isxdigit (chr n)) (isxdigit (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+
+and ftIsupper (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => isupper (chr n)) (isupper (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+
+and ftIslower (minCh : int) (maxCh : int) : transaction page =
+    let
+	fun test_chr (n : int) : xbody =
+	    if iscodepoint n then
+		test_fn_cside_b (fn _ => islower (chr n)) (islower (chr n))
+				 ("test chr " ^ (show n) ^ " : " ^ (show (chr n)))
+	    else
+		<xml></xml>
+    in
+	return <xml>
+	  <body>
+	    { from_m_upto_n (fn n => test_chr n) minCh maxCh }
+	  </body>
+	</xml>
+    end
+    
+fun index () : transaction page =
+    return <xml>
+      <body>
+	<a link={substrings ()}>substrings</a>
+	<a link={strlens ()}>strlens</a>
+	<a link={strlenGens ()}>strlenGens</a>
+	<a link={strcats ()}>strcats</a>
+	<a link={strsubs ()}>strsubs</a>
+	<a link={strsuffixs ()}>strsuffixs</a>
+	<a link={strchrs ()}>strchrs</a>
+	<a link={strindexs ()}>strindexs</a>
+	<a link={strsindexs ()}>strsindexs</a>
+	<a link={strcspns ()}>strcspns</a>
+	<a link={str1s ()}>str1s</a>
+	<a link={isalnums ()}>isalnums</a>
+	<a link={isalphas ()}>isalphas</a>
+	<a link={isblanks ()}>isblanks</a>
+	<a link={iscntrls ()}>iscntrls</a>
+	<a link={isdigits ()}>isdigits</a>
+	<a link={isgraphs ()}>isgraphs</a>
+	<a link={islowers ()}>islowers</a>
+	<a link={isprints ()}>isprints</a>
+	<a link={ispuncts ()}>ispuncts</a>
+	<a link={isspaces ()}>isspaces</a>
+	<a link={isuppers ()}>isuppers</a>
+	<a link={isxdigits ()}>isxdigits</a>
+	<a link={tolowers ()}>tolowers</a>
+	<a link={touppers ()}>touppers</a>
+	<a link={ord_and_chrs ()}>ord_and_chrs</a>
+	<a link={test_ords ()}>test ord</a>
+	<a link={highencode ()}>highencode</a>
+	<a link={test_db ()}>test_db</a>
+      </body>
+      </xml>
diff --git a/tests/utf8.urp b/tests/utf8.urp
new file mode 100644
index 00000000..25288aa8
--- /dev/null
+++ b/tests/utf8.urp
@@ -0,0 +1,6 @@
+database dbname=utf8
+sql utf8.sql
+safeGet Utf8/test_db
+
+$/option
+utf8
\ No newline at end of file