155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
-
-
+
+
-
+
|
if( n==0 ) return 0; /* Empty file -> OK */
c = *z;
while( --n>0 ){
c2 = c;
c = *++z;
if( c2>=0x80 ){
if( ((c&0xc0)!=0x80) || ((c2<0xc2) || (c2>=0xf4)) &&
(((c2!=0xf4) || (c>=0x90)) && ((c2!=0xc0) || (c!=0x80))) ){
if( ((c&0xc0)!=0x80) || (((c2<0xc2) || (c2>=0xf4)) &&
(((c2!=0xf4) || (c>=0x90)) && ((c2!=0xc0) || (c!=0x80)))) ){
return LOOK_INVALID; /* Invalid UTF-8 */
}
if( c2>=0xe0 ){
if ((c2==0xf0 && c<0x90)||(c2==0xe0 && c<0xa0)){
if ((c2==0xf0 && c<0x90)||(c2==0xe0 && c<0xa0) ){
return LOOK_INVALID; /* Invalid UTF-8, too short */
}
c = (c2<<1)|3;
}else{
c = ' ';
}
}
|