Improve toLowerCase and toUpperCase functions. (#1575)

Language-sensitive mappings are not processed now.

Fixes #323

JerryScript-DCO-1.0-Signed-off-by: Robert Sipka rsipka.uszeged@partner.samsung.com

tests/jerry/string-upper-lower-case-conversion.js

@@ -12,7 +12,72 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// Conversion
+// LATIN SMALL LIGATURES
+// LATIN SMALL LIGATURE FF
+assert ("\ufb00".toLowerCase() == "\ufb00");
+assert ("\ufb00".toUpperCase() == "\u0046\u0046");
+// LATIN SMALL LIGATURE FI
+assert ("\ufb01".toLowerCase() == "\ufb01");
+assert ("\ufb01".toUpperCase() == "\u0046\u0049");
+// LATIN SMALL LIGATURE FL
+assert ("\ufb02".toLowerCase() == "\ufb02");
+assert ("\ufb02".toUpperCase() == "\u0046\u004c");
+// LATIN SMALL LIGATURE FFI
+assert ("\ufb03".toLowerCase() == "\ufb03");
+assert ("\ufb03".toUpperCase() == "\u0046\u0046\u0049");
+// LATIN SMALL LIGATURE FFL
+assert ("\ufb04".toLowerCase() == "\ufb04");
+assert ("\ufb04".toUpperCase() == "\u0046\u0046\u004c");
+// LATIN SMALL LIGATURE LONG S T
+assert ("\ufb05".toLowerCase() == "\ufb05");
+assert ("\ufb05".toUpperCase() == "\u0053\u0054");
+// LATIN SMALL LIGATURE ST
+assert ("\ufb06".toLowerCase() == "\ufb06");
+assert ("\ufb06".toUpperCase() == "\u0053\u0054");
+
+// LATIN CAPITAL LETTER I WITH DOT ABOVE
+assert ("\u0130".toLowerCase() == "\u0069\u0307");
+assert ("\u0130".toUpperCase() == "\u0130");
+
+// LATIN SMALL LETTER SHARP S
+assert ("\u00df".toLowerCase() == "\u00df");
+assert ("\u00df".toUpperCase() == "\u0053\u0053");
+
+// LATIN CAPITAL LETTER I WITH BREVE
+assert ("\u012c".toLowerCase() == "\u012d");
+assert ("\u012c".toUpperCase() == "\u012c");
+// LATIN SMALL LETTER I WITH BREVE
+assert ("\u012d".toLowerCase() == "\u012d")
+assert ("\u012d".toUpperCase() == "\u012c");
+
+// Check randomly selected characters from conversion tables
+
+// lower-case conversions
+assert ("\u01c5\u01c8\u01cb\u212b".toLowerCase() == "\u01c6\u01c9\u01cc\u00e5");
+assert ("\u0130".toLowerCase() == "\u0069\u0307");
+
+// upper-case conversions
+assert ("\u00b5\u017f".toUpperCase() == "\u039c\u0053");
+assert ("\ufb17\u00df\u1fbc".toUpperCase() == "\u0544\u053D\u0053\u0053\u0391\u0399");
+assert ("\ufb03\ufb04".toUpperCase() == "\u0046\u0046\u0049\u0046\u0046\u004c");
+
+// character case ranges
+assert ("\u0100\u0101\u0139\u03fa\ua7b4".toLowerCase() == "\u0101\u0101\u013a\u03fb\ua7b5");
+assert ("\u0101\u0100\u013a\u03fb\ua7b5".toUpperCase() == "\u0100\u0100\u0139\u03fa\ua7b4");
+
+// character pairs
+assert ("\u0178\ua7b1\u0287\ua7b3".toLowerCase() == "\u00ff\u0287\u0287\uab53");
+assert ("\u00ff\u0287\ua7b1\uab53".toUpperCase() == "\u0178\ua7b1\ua7b1\ua7b3");
+
+// character case ranges
+assert ("\u00e0\u00c0\u00c1\u00c2\uff21".toLowerCase() == "\u00e0\u00e0\u00e1\u00e2\uff41");
+assert ("\u00e0\u00c0\u00e1\u00e2\uff41".toUpperCase() == "\u00c0\u00c0\u00c1\u00c2\uff21");
+
+// lower-case ranges
+assert ("\u1f88\u1f98\u1fa8\u1f8b\u1faf".toLowerCase() == "\u1f80\u1f90\u1fa0\u1f83\u1fa7");
+
+// upper-case special ranges
+assert ("\u1f80\u1f81\u1fa7".toUpperCase() == "\u1f08\u0399\u1f09\u0399\u1f6f\u0399");
 
 assert ("0123456789abcdefghijklmnopqrstuvwxzyABCDEFGHIJKLMNOPQRSTUVWXYZ".toLowerCase()
         == "0123456789abcdefghijklmnopqrstuvwxzyabcdefghijklmnopqrstuvwxyz");