2 * Copyright (c) 2009 Nicira Networks.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
22 /* Returns true if 'c' is a Unicode code point, otherwise false. */
24 uc_is_code_point(int c)
26 return c >= 0 && c <= 0x10ffff;
29 /* Returns true if 'c' is a Unicode code point for a leading surrogate. */
31 uc_is_leading_surrogate(int c)
33 return c >= 0xd800 && c <= 0xdbff;
36 /* Returns true if 'c' is a Unicode code point for a trailing surrogate. */
38 uc_is_trailing_surrogate(int c)
40 return c >= 0xdc00 && c <= 0xdfff;
43 /* Returns true if 'c' is a Unicode code point for a leading or trailing
46 uc_is_surrogate(int c)
48 return c >= 0xd800 && c <= 0xdfff;
51 int utf16_decode_surrogate_pair(int leading, int trailing);
53 #endif /* unicode.h */