/*
* $Log$
+ * Revision 1.9 2008/02/27 01:31:14 james
+ * *** empty log message ***
+ *
+ * Revision 1.8 2008/02/27 00:54:16 james
+ * *** empty log message ***
+ *
+ * Revision 1.7 2008/02/26 23:56:12 james
+ * *** empty log message ***
+ *
+ * Revision 1.6 2008/02/26 23:23:17 james
+ * *** empty log message ***
+ *
* Revision 1.5 2008/02/24 00:42:53 james
* *** empty log message ***
*
}
-
-
-void
-utf8_emit (TTY * t, int ch)
+int
+utf8_encode (char *ptr, int ch)
{
- uint8_t buf[4];
if (ch < 0x80)
{
- buf[0] = ch;
- t->xmit (t, buf, 1);
+ ptr[0] = ch;
+ return 1;
}
else if (ch < 0x800)
{
- buf[0] = 0xc0 | (ch >> 6);
- buf[1] = 0x80 | (ch & 0x3f);
-
- t->xmit (t, buf, 2);
+ ptr[0] = 0xc0 | (ch >> 6);
+ ptr[1] = 0x80 | (ch & 0x3f);
+ return 2;
}
else if (ch < 0x10000)
{
- buf[0] = 0xe0 | (ch >> 12);
- buf[1] = 0x80 | ((ch >> 6) & 0x3f);
- buf[2] = 0x80 | (ch & 0x3f);
- t->xmit (t, buf, 3);
+ ptr[0] = 0xe0 | (ch >> 12);
+ ptr[1] = 0x80 | ((ch >> 6) & 0x3f);
+ ptr[2] = 0x80 | (ch & 0x3f);
+ return 3;
}
else if (ch < 0x1fffff)
{
- buf[0] = 0xf0 | (ch >> 18);
- buf[1] = 0x80 | ((ch >> 12) & 0x3f);
- buf[2] = 0x80 | ((ch >> 6) & 0x3f);
- buf[3] = 0x80 | (ch & 0x3f);
- t->xmit (t, buf, 4);
+ ptr[0] = 0xf0 | (ch >> 18);
+ ptr[1] = 0x80 | ((ch >> 12) & 0x3f);
+ ptr[2] = 0x80 | ((ch >> 6) & 0x3f);
+ ptr[3] = 0x80 | (ch & 0x3f);
+ return 4;
}
+ return 0;
+}
+
+void
+utf8_emit (TTY * t, int ch)
+{
+ uint8_t buf[4];
+ int i;
+ i = utf8_encode (buf, ch);
+ if (!i)
+ return;
+
+ t->xmit (t, buf, i);
}