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/* Test Output of UTF8 Strings
Not for use inside foobillard++
ONLY FOR TESTING PURPOSES
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/*
Char. number range | UTF-8 octet sequence
(hexadecimal) | (binary)
--------------------+---------------------------------------------
0000 0000-0000 007F | 0xxxxxxx
0000 0080-0000 07FF | 110xxxxx 10xxxxxx
0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
*/
int main( int argc, char *argv[] )
{
char versuch[100] = "abcdefghijklmnopqrstuvwxyzäöüßÄÖÜ";
unsigned char lb;
int n;
int realcount = 0;
for ( n = 0; versuch[n]!=0; n++ ) {
lb = versuch[n];
realcount++;
if (( lb & 0x80 ) == 0 ) { // lead bit is zero, must be a single ascii
printf( "1 octet\n" );
} else if (( lb & 0xE0 ) == 0xC0 ) { // 110x xxxx
fprintf(stderr,"2 octets\n" );
if(versuch[n+1] == 0) {
printf("Error in 1 Octet. End of String reached\n");
} else {
n++;
}
} else if (( lb & 0xF0 ) == 0xE0 ) { // 1110 xxxx
fprintf(stderr,"3 octets\n" );
if(versuch[n+1] == 0 || versuch[n+2] == 0) {
printf("Error in 2 Octet. End of String reached\n");
} else {
n+=2;
}
} else if (( lb & 0xF8 ) == 0xF0 ) { // 1111 0xxx
fprintf(stderr,"4 octets\n" );
if(versuch[n+1] == 0 || versuch[n+2] == 0 || versuch[n+3] == 0) {
printf("Error in 3 Octet. End of String reached\n");
} else {
n+=3;
}
} else {
fprintf(stderr,"Unrecognized lead byte (%02x)\n", lb );
}
}
printf("Output length with strlen: %i\n",strlen(versuch));
printf("The real count is: %i\n",realcount);
printf("String is: %s\n",versuch);
}
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