1228 int n2 = s2.length();
1229 int min = Math.min(n1, n2);
1230 for (int i = 0; i < min; i++) {
1231 char c1 = s1.charAt(i);
1232 char c2 = s2.charAt(i);
1233 if (c1 != c2) {
1234 c1 = Character.toUpperCase(c1);
1235 c2 = Character.toUpperCase(c2);
1236 if (c1 != c2) {
1237 c1 = Character.toLowerCase(c1);
1238 c2 = Character.toLowerCase(c2);
1239 if (c1 != c2) {
1240 // No overflow because of numeric promotion
1241 return c1 - c2;
1242 }
1243 }
1244 }
1245 }
1246 return n1 - n2;
1247 }
1248 }
1249
1250 /**
1251 * Compares two strings lexicographically, ignoring case
1252 * differences. This method returns an integer whose sign is that of
1253 * calling <code>compareTo</code> with normalized versions of the strings
1254 * where case differences have been eliminated by calling
1255 * <code>Character.toLowerCase(Character.toUpperCase(character))</code> on
1256 * each character.
1257 * <p>
1258 * Note that this method does <em>not</em> take locale into account,
1259 * and will result in an unsatisfactory ordering for certain locales.
1260 * The java.text package provides <em>collators</em> to allow
1261 * locale-sensitive ordering.
1262 *
1263 * @param str the <code>String</code> to be compared.
1264 * @return a negative integer, zero, or a positive integer as the
1265 * specified String is greater than, equal to, or less
1266 * than this String, ignoring case considerations.
1267 * @see java.text.Collator#compare(String, String)
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1228 int n2 = s2.length();
1229 int min = Math.min(n1, n2);
1230 for (int i = 0; i < min; i++) {
1231 char c1 = s1.charAt(i);
1232 char c2 = s2.charAt(i);
1233 if (c1 != c2) {
1234 c1 = Character.toUpperCase(c1);
1235 c2 = Character.toUpperCase(c2);
1236 if (c1 != c2) {
1237 c1 = Character.toLowerCase(c1);
1238 c2 = Character.toLowerCase(c2);
1239 if (c1 != c2) {
1240 // No overflow because of numeric promotion
1241 return c1 - c2;
1242 }
1243 }
1244 }
1245 }
1246 return n1 - n2;
1247 }
1248
1249 private Object readResolve() { return CASE_INSENSITIVE_ORDER; }
1250 }
1251
1252 /**
1253 * Compares two strings lexicographically, ignoring case
1254 * differences. This method returns an integer whose sign is that of
1255 * calling <code>compareTo</code> with normalized versions of the strings
1256 * where case differences have been eliminated by calling
1257 * <code>Character.toLowerCase(Character.toUpperCase(character))</code> on
1258 * each character.
1259 * <p>
1260 * Note that this method does <em>not</em> take locale into account,
1261 * and will result in an unsatisfactory ordering for certain locales.
1262 * The java.text package provides <em>collators</em> to allow
1263 * locale-sensitive ordering.
1264 *
1265 * @param str the <code>String</code> to be compared.
1266 * @return a negative integer, zero, or a positive integer as the
1267 * specified String is greater than, equal to, or less
1268 * than this String, ignoring case considerations.
1269 * @see java.text.Collator#compare(String, String)
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