/* --------------------------------------------------------------
From InputCode To OutputCode Convertion Routine
First find a key in Sorted Section of 2Byte table by bisection search
And then look up UnSorted Section of the table by siquential search
Hanbuf[ 1:Hanbuf[0] ] will be filled with OutputCode
F,T : Input and Output 2 Byte code Number in h2Bcode.h
--------------------------------------------------------------- */
void code2conv(Hanbuf, F, T)
int Hanbuf[], F, T;
{
int i,l,m,u,test,find=0;
for ( i=1; i<=Hanbuf[0]; i++ ) {
l = NoUnSorted; u = NoKSC-1;
while ( l<=u ) {
test = TwoConvert[(m=(l+u)/2)][F];
if ( test < Hanbuf[i] ) l=m+1;
else if ( test > Hanbuf[i] ) u=m-1;
else {
find = 1;
break;
}
}
if ( find == 0 ) {
for (m=0; m<NoUnSorted; m++)
if ( TwoConvert[m][F] == Hanbuf[i] ) {
find=1;
break;
}
}
if ( find == 1 ) {
Hanbuf[i] = TwoConvert[m][T];
find = 0;
} else {
fprintf(stderr,"%x is unknown %d Code\n",Hanbuf[i],F);
}
}
}
/* --------------------------------------------------------------
Hangul Char in Multibyte is defined like
(C* V+ C*) (C V+ C*) * (C {V+|EOF} )
Pointer p0 p1 p2 p3
Next_Step p0 p1 p2 p3
--------------------------------------------------------------
This section consists of Three routines and one aux routine.
void m2code(buf,IC,HanMode,Hanbuf)
int getOne(buf, IC, p0, p1)
int HanCode(buf,IC, p0,p1,p2,p3)
int strNcmp(test,table,size)
--------------------------------------------------------------- */
int strNcmp(test,table,size)
unsigned char test[], table[];
int size;
{ int i;
for ( i=0; i<size; i++ )
if ( test[i] > table[i] ) return(1);
else if ( test[i] < table[i] ) return(-1);
if ( table[size] != '\0' ) return(-1);
return(0);
}
/* ------------------------------------------------
ChoSung and JungSung and Jongsung is already
separated by p0,p1,p2,p3 in buf
convert each portion by 3B table look up method
And then join three of them into one Integer Code
If any of them is missing, then
correspoding code will be the lower limit (01,02,01).
------------------------------------------------ */
int HanCode(buf,IC, p0,p1,p2,p3)
unsigned char buf[];
int IC, p0,p1,p2,p3;
{
int ch,ju,jo, l,t,u,order;
l=01; u=20;
while ( l<= u ) {
ch = (l+u) / 2;
order=strNcmp(buf+p0,ChoSung[ch][IC],p1-p0);
if ( order > 0 ) l=ch+1;
else if ( order < 0 ) u=ch-1;
else break;
}
l=02; u=29;
while ( l<= u ) {
ju = t = (l+u) / 2;
if ( (ju&6) == 0 ) {
ju = (ju&0x00f8) - 1;
t = ju+2;
}
order = strNcmp(buf+p1,JungSung[ju][IC],p2-p1);
if ( order > 0 ) l=t+1;
else if ( order < 0 ) u=ju-1;
else break;
}
l=02; u=29;
if ( p3 == p2 ) jo = 1;
else if (strNcmp(buf+p2,JongSung[3][IC],p3-p2)==0) jo=3;
else
while ( l<= u ) {
jo = t = (l+u) / 2;
if ( jo == 18 ) {
jo=17;
}
order = strNcmp(buf+p2,JongSung[jo][IC],p3-p2);
if ( order > 0 ) l=t+1;
else if ( order < 0 ) u=jo-1;
else break;
}
int getOne(buf, IC, p0, p1)
unsigned char buf[];
int IC, *p0, *p1;
{
int p2, p3, np, result;
if ( *p1 == *p0 )
for ( ; IsConso(buf[*p1],IC); (*p1)++ )
if ( *p1 == buf[0] ) {
result=HanCode(buf,IC,*p0,*p1+1,*p1+1,*p1+1);
*p1 = buf[0] + 1;
return(result);
}
for ( p2= (*p1); IsVowel(buf[p2],IC); p2++ )
if ( p2 == buf[0] ) {
result=HanCode(buf,IC,*p0,*p1,p2+1,p2+1);
*p1 = buf[0] + 1;
return(result);
}
for ( p3= p2; IsConso(buf[p3],IC); p3++ )
if ( p3 == buf[0] ) {
result=HanCode(buf,IC,*p0,*p1,p2,p3+1);
*p1 = buf[0] + 1;
return(result);
}
result = HanCode(buf,IC,*p0,*p1,p2,p3-1);
*p0 = p3 - 1;
*p1 = p3;
return(result);
}
/* ------------------------------------------------
MultiByte inputs in buf to Hanbuf with Trigem Code
If Hangul_input_Mode is not ENDHAN, then
undo last one code conversion.
------------------------------------------------ */
