#include <stdio.h>
#include <signal.h>

void catch()
{
        printf("error=yes\n");
        exit(1);
}

main()
{
char *buf;
char *final;
char addon[100];
short i;
short j;
short k;
short hex1;
short hex2;
void catch();
int f;
int g;
char *tmp_char, *last_amp;
int thesize = 0;

        tmp_char = (char *) getenv ( "CONTENT_LENGTH" );
        if ( tmp_char != (char *)NULL ) thesize = atoi ( tmp_char );
        if ( thesize == 0 ) thesize = 8190;
        buf = (char *)malloc(thesize+1);
        final = (char *)malloc(2 * (thesize+1));
        if ( buf == (char *)NULL || final == (char *)NULL ) {
                printf ("ERROR=\"Can not malloc\"\n");
                exit (1);
        }

        memset ( final, 0, 2*(thesize+1) );
        memset ( buf, 0, thesize+1 );

        signal(SIGALRM,catch);
        alarm(5);
        f=fileno(stdin);
        g=readn(f,buf,thesize);

        if(g<1){
                exit(1);
        }
        for(g=0;g<thesize;g++)
                if(buf[g]<32){
                        buf[g]=0;
                        break;
                }

        /* -- Look for special x and y variables -- */
        memset (addon, 0, sizeof addon);
        last_amp = buf;
        while (last_amp != (char *)NULL)
        {
                tmp_char = (char *) strpbrk ((last_amp+1), "&.=");
                if (tmp_char == (char *) NULL)
                        break;
                else
                if ((*tmp_char) == '=') /* -- Regular Variable -- */
                {
                        last_amp = (char *) strchr (tmp_char, '&');
                        continue;
                }
                if ((*tmp_char) == '&') /* -- Regular Variable -- */
                {
                        last_amp = tmp_char;
                        continue;
                }
                else /* -- This is an image variable to be translated -- */
                {
                        (*tmp_char) = 0; tmp_char++;
                        (*last_amp) = 0; last_amp++;
                        sprintf (addon, "SelectedButton=\"%s\"\0", last_amp);
                        tmp_char = (char *) strchr (tmp_char, '&');
                        if (tmp_char == (char *) NULL)
                                tmp_char = &buf[g];

                        /* -- Erase the image variable -- */
                        while (last_amp != tmp_char)
                        {
                                (*last_amp) = 0; last_amp++;
                        }
                }
        }

        /* -- Start Main Parsing -- */
        for(i=0,j=0;i<g;i++){
                k = buf[i];
                switch(k){
                        case 0:
                                break;
                        case '+':
                        case '`':
                                final[j++]=' ';
                                break;
                        case '&':
                                if (!j) break;
                                final[j++]='\"';
                                final[j++]=';';
                                break;
                        case '\"':
                                if (!j) break;
                                final[j++]='\\';
                                final[j++]='\"';
                                break;
                        case '%':
                                hex1=buf[++i];
                                hex2=buf[++i];
                                if(!isxdigit(hex1)||!isxdigit(hex2)) break;
                                hex1=toupper(hex1);
                                hex2=toupper(hex2);
                                if(isalpha(hex1)){
                                        k=16*(hex1-'A'+10);
                                }else{
                                        k=16*(hex1-'0');
                                }
                                if(isalpha(hex2)){
                                        k+=(hex2-'A'+10);
                                }else{
                                        k+=(hex2-'0');
                                }
                                if(k=='*'){
                                        if(j==0||!isalnum(final[j-1]))
                                                k=32;
                                }
                                if(k=='\\'){
                                        final[j++]=k;
                                        final[j++]=k;
                                        final[j++]=k;
                                }
                                if(k=='\"'){
                                        final[j++]='\\';
                                }
                                if ( k == '`' ) {
                                        k = ' ';
                                }
                                final[j++]=k;
                                break;
                        case '=':
                                final[j++]='=';
                                final[j++]='\"';
                                break;
                        default:
                                if(k=='*'){
                                        if(j==0||(!isalnum(final[j-1])&&final[j-1]!='*'))
                                                k=32;
                                }
                                final[j++]=k;
                                break;
                }
        }
        if (j)
                final[j++]='\"';
        if (j && addon[0])
                final[j++]=';';
        strcat (final, addon);
        printf("%s\n",final);                   /* output piece */
        fflush(stdout);
}