[Dev-C++] urlencode for UTF8 chars

[Goran <go...@de...>]

I need to send some data with HTTP POST query to web server, but i am havin=
g=20
problems with urlencode algorithm.

I am using following code:
(g_strconcat is Glib function that does calloc and than strcat to new point=
er)

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
#define hex(ch) ( (char) ( ((ch) >=3D 10) ? ((ch) - 10) + 'A' : ((ch) + '0'=
) ) )

#ifndef is_alnum
#define is_alnum(ch) ( ((ch) >=3D '0' && (ch) <=3D '9') || \
                        ((ch) >=3D 'A' && (ch) <=3D 'Z') || \
                        ((ch) >=3D 'a' && (ch) <=3D 'z') )
 #endif

char *=20
urlencode(char *input) {

 char *dest;
 int len,i;
 int j=3D0;

 len =3D strlen(input);
 dest =3D calloc(len+1,sizeof(char));

 for(i =3D 0; i < len; i++ )
 {

      if( is_alnum(input[i]) || input[i] =3D=3D '_' || input[i] =3D=3D '-')=
=20
      {
          dest[j] =3D input[i];  j++; =20
      }
      else if( input[i] =3D=3D ' ')=20
      {=20
          dest[j] =3D '+'; j++; =20
      }
      else
       {
	   dest =3D realloc(dest, strlen(dest)+2);
	   dest[j] =3D '%';
           dest[j+1] =3D hex(input[i] >> 4);
           dest[j+2] =3D hex(input[i] & 0xF);
	   j=3Dj+3;
       }

 }

  printf("Len: %i\nString: %s\n", strlen(dest), dest);
  input =3D g_strconcat(dest,NULL);
  g_free(dest);
  return input;
}
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Code is based on function that I found in DsURL library on the web.

But I am having troubles with Latin1 (=C3=9F, =C3=A0,...) and Latin2 (=C4=
=8D, =C4=87, =C5=BE,...) =20
chars. I have UTF8 representation of that chars, and for example web server=
=20
translate "=C3=9F" as "%DF" and my function doesnt - I am getting "%,3%)F".=
 It is=20
becouse my string is in UTF8 and this function expects ASCII string. But I=
=20
donot know how to do this for multibyte.

Thanx,
Goran