static void _PrintHelp(DecisionTreePtr dt, FILE *out, int indent) {
int i;
_PrintSpaces(out, indent);
if(dt->nodeType == dtnLeaf) {
//fprintf(out, "(leaf: %d)\n", dt->myclass);
fprintf(out, "(leaf: %s)\n",
ExampleSpecGetClassValueName(dt->spec, dt->myclass));
} else if(dt->nodeType == dtnDiscrete) {
fprintf(out, "(split on %s:\n",
ExampleSpecGetAttributeName(dt->spec, dt->splitAttribute));
for(i = 0 ; i < VALLength(dt->children) ; i++) {
_PrintSpaces(out, indent + 1);
fprintf(out, "%s\n",
ExampleSpecGetAttributeValueName(dt->spec, dt->splitAttribute, i));
_PrintHelp(VALIndex(dt->children, i), out, indent + 2);
}
_PrintSpaces(out, indent);
fprintf(out, ")\n");
} else if(dt->nodeType == dtnContinuous) {
fprintf(out, "(split on %s:\n",
ExampleSpecGetAttributeName(dt->spec, dt->splitAttribute));
/* left child */
_PrintSpaces(out, indent + 1);
fprintf(out, "< %f\n", dt->splitThreshold);
_PrintHelp(VALIndex(dt->children, 0), out, indent + 2);
/* right child */
_PrintSpaces(out, indent + 1);
fprintf(out, ">= %f\n", dt->splitThreshold);
_PrintHelp(VALIndex(dt->children, 1), out, indent + 2);
_PrintSpaces(out, indent);
fprintf(out, ")\n");
} else if(dt->nodeType == dtnGrowing) {
fprintf(out, "(growing)\n");
}
}
void Run()
{
// prepare device modifications
if (fDevice->IsReadOnly()) {
printf("Device is read-only. Can't change anything.\n");
} else {
status_t error = fDevice->PrepareModifications();
fPrepared = (error == B_OK);
if (error != B_OK) {
printf("Error: Failed to prepare device for modifications: "
"%s\n", strerror(error));
}
}
// main input loop
while (true) {
BString line;
if (!_ReadLine("party> ", line))
return;
if (line == "") {
// do nothing
} else if (line == "h" || line == "help") {
_PrintHelp();
} else if (line == "i") {
_InitializePartition();
} else if (line == "l") {
_PrintPartitionsShort();
} else if (line == "ll") {
_PrintPartitionsLong();
} else if (line == "n") {
_NewPartition();
} else if (line == "q" || line == "quit") {
return;
} else if (line == "w") {
_WriteChanges();
} else {
printf("Invalid command \"%s\", type \"help\" for help\n",
line.String());
}
}
}
int cConsoleApplication::Run()
{
bool bIsSuccessfulRun = true;
bool bIsHandledAlready = false;
const size_t n = GetArgumentCount();
if (n == 1) {
const string_t sArgument0 = GetArgument(0);
if ((sArgument0 == TEXT("-help")) || (sArgument0 == TEXT("--help"))) {
bIsHandledAlready = true;
_PrintHelp();
} else if ((sArgument0 == TEXT("-version")) || (sArgument0 == TEXT("--version"))) {
bIsHandledAlready = true;
PrintVersion();
}
}
if (!bIsHandledAlready) bIsSuccessfulRun = _Run();
return (bIsSuccessfulRun) ? EXIT_SUCCESS : EXIT_FAILURE;
}
void DecisionTreePrint(DecisionTreePtr dt, FILE *out) {
_PrintHelp(dt, out, 0);
}