2 Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization
3 dedicated to making software imaging solutions freely available.
5 You may not use this file except in compliance with the License.
6 obtain a copy of the License at
8 http://www.imagemagick.org/script/license.php
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.
16 MagickCore private token methods.
18 #ifndef _MAGICKCORE_TOKEN_PRIVATE_H
19 #define _MAGICKCORE_TOKEN_PRIVATE_H
21 #if defined(__cplusplus) || defined(c_plusplus)
29 #define MaxMultibyteCodes 6
41 utf_info[MaxMultibyteCodes] =
43 { 0x80, 0x00, 0x000007f, 0x0000000 }, /* 1 byte sequence */
44 { 0xE0, 0xC0, 0x00007ff, 0x0000080 }, /* 2 byte sequence */
45 { 0xF0, 0xE0, 0x000ffff, 0x0000800 }, /* 3 byte sequence */
46 { 0xF8, 0xF0, 0x01fffff, 0x0010000 }, /* 4 byte sequence */
47 { 0xFC, 0xF8, 0x03fffff, 0x0200000 }, /* 5 byte sequence */
48 { 0xFE, 0xFC, 0x7ffffff, 0x4000000 }, /* 6 byte sequence */
51 static inline long GetNextUTFCode(const char *text,size_t *octets)
64 if (text == (const char *) NULL)
69 code=(long) (*text++) & 0xff;
71 for (i=0; i < MaxMultibyteCodes; i++)
73 if ((code & utf_info[i].code_mask) == utf_info[i].code_value)
75 unicode&=utf_info[i].utf_mask;
76 if (unicode < utf_info[i].utf_value)
81 *octets=(size_t) (i+1);
84 c=(long) (*text++ ^ 0x80) & 0xff;
90 unicode=(unicode << 6) | c;
96 static long GetUTFCode(const char *text)
101 return(GetNextUTFCode(text,&octets));
104 static size_t GetUTFOctets(const char *text)
109 (void) GetNextUTFCode(text,&octets);
113 static inline MagickBooleanType IsUTFSpace(long code)
115 if (((code >= 0x0009) && (code <= 0x000d)) || (code == 0x0020) ||
116 (code == 0x0085) || (code == 0x00a0) || (code == 0x1680) ||
117 (code == 0x180e) || ((code >= 0x2000) && (code <= 0x200a)) ||
118 (code == 0x2028) || (code == 0x2029) || (code == 0x202f) ||
119 (code == 0x205f) || (code == 0x3000))
124 static inline MagickBooleanType IsUTFValid(long code)
129 mask=(long) 0x7fffffff;
130 if (((code & ~mask) != 0) && ((code < 0xd800) || (code > 0xdfff)) &&
131 (code != 0xfffe) && (code != 0xffff))
136 static inline MagickBooleanType IsUTFAscii(long code)
142 if ((code & ~mask) != 0)
147 #if defined(__cplusplus) || defined(c_plusplus)