/**
* Function to handle command line meta commands
* @param cmd Pointer to the command line
* @return Returns nothing
**/
void exec_command( char *cmd )
{
char *ps = NULL;
int index = 0;
psetArray psa = NULL;
if ( cmd == NULL ) {
goto end;
}
if ( strcmp( cmd, ".l") == 0 ) {
_terminate(0);
} else if ( strcmp( cmd, ".h") == 0 ) {
printf("setx = |\"data\", sety|\tInitialize a set\n");
printf("setx = seta+setb\tunion\n");
printf("setx = seta^setb\tintersect\n");
printf("setx = seta-setb\tset difference\n");
printf("setx = seta~setb\tsymmetric difference\n");
printf("seta @@ setb\t\tsubset. Returns TRUE or FALSE\n");
printf(".h\t\tPrint this menu\n");
printf(".l\t\tExit the program\n");
printf(".p\t\tPrint sets and their elements\n");
printf(".ps <setvar>\tPrint an expanded set\n");
} else if ( memcmp( cmd, ".ps", 3) == 0 ) {
cmd += 3;
/// Skip any spaces
while( *cmd == ' ' ) { ++cmd; }
/// Skip to the end of the argument
while( isalnum(cmd[index]) ) { index++; }
/// Add a null
cmd[index] = 0x00;
psa = retrieve_set( cmd );
if ( psa == NULL ) {
printf("!!Failed to find set: @s\n", cmd );
goto end;
}
#ifdef PATCHED
ps = print_subsets( psa, 1, 0);
#else
ps = print_subsets( psa, 1 );
#endif
if ( ps != NULL ) {
printf("@s\n", ps);
deallocate(ps, cgc_strlen(ps)+1);
}
} else if ( strcmp( cmd, ".p") == 0 ) {
print_sets();
} else {
printf("!!Unrecognized command: @s\n", cmd);
goto end;
}
end:
return;
}
int main (int argc, char *argv[]) {
int i =0 ;
int size = 1;
if (argv[1])
size = atoi(argv[1]);
printf ("size=%d.\n", size);
//for (i=0; i<5; i++) {
//printf ("{");
print_subsets (i, 5, size, vals[i]);
// printf ("\n");
//}
printf ("\n");
return 0;
}
void print_subsets (int begin, int end, int size, int item) {
int i =0;
if (begin > end)
return;
if (size == 0) {
//printf ("\n");
return;
} else if (size == 1) {
printf ("%d\t", vals[begin]);
//return;
}
//printf ("%d\t", item);
for (i=begin;i<end;i++) {
printf ("%d\t ", vals[i]);
print_subsets (begin+1, end, size-1, vals[i]);
printf ("\n");
}
//printf ("\n");
return;
}
char * print_subsets( psetArray r, int addName )
#endif
{
char *outbuff = NULL;
char *t = NULL;
char data[DATAMAX];
int index = 0;
int ei = 0;
#ifdef PATCHED
if (depth > 10) {
return NULL;
}
#endif
if ( r == NULL ) {
return NULL;
}
bzero( data, DATAMAX);
if (addName != 0 ) {
index = copymem( data, r->varName, index, cgc_strlen(r->varName) );
index = copymem( data, " = ", index, 3 );
}
data[index++] = '|';
for ( ei = 0; ei < r->varCount; ei++) {
if ( r->sElems[ei]->type == VALUE ) {
#ifdef PATCHED
if ( index < DATAMAX-1 )
#endif
data[index++] = '"';
t = r->sElems[ei]->value;
#ifdef PATCHED
if ( index + cgc_strlen(t) >= DATAMAX-1 ) {
goto end;
}
#endif
index = copymem( data, t, index, cgc_strlen(t));
#ifdef PATCHED
if ( index < DATAMAX-1 )
#endif
data[index++] = '"';
} else {
psetArray tp = retrieve_set( r->sElems[ei]->value);
#ifdef PATCHED
t = print_subsets( tp, 0, depth + 1);
#else
t = print_subsets( tp, 0 );
#endif
if ( t == NULL ) {
outbuff = NULL;
goto end;
}
#ifdef PATCHED
if ( index + cgc_strlen(t) >= DATAMAX-1 ) {
deallocate(t, cgc_strlen(t) + 1 );
goto end;
}
#endif
index = copymem( data, t, index, cgc_strlen(t));
deallocate(t, cgc_strlen(t) + 1 );
}
#ifdef PATCHED
if ( index < DATAMAX - 1 )
#endif
data[index++] = ',';
}
#ifdef PATCHED
if ( index < DATAMAX-2 )
#endif
{
if ( data[index-1] == ',' ) {
data[index-1] = '|';
data[index] = 0x00;
} else {
data[index] = '|';
data[index+1] = 0x00;
}
}
if ( allocate( cgc_strlen(data) + 1, 0, (void*)&outbuff) != 0 ) {
outbuff = NULL;
goto end;
}
bzero( outbuff, cgc_strlen(data) + 1 );
copymem( outbuff, data, 0, cgc_strlen(data) );
end:
return outbuff;
}
