jAnsi library not working with Processing problem.

el_dippo

jAnsi library not working with Processing problem.

in Contributed Library Questions • 4 months ago

Hello all,

(difficult question)
I was wondering if somebody knows to get jAnsi library working with Processing. I am running out of options.
I made this example:

//import org.fusesource.jansi.internal.*;
//import org.fusesource.jansi.*;
import org.fusesource.jansi.Ansi;
//import org.fusesource.hawtjni.runtime.*;
import org.fusesource.jansi.AnsiConsole;
String ANSI_CLS = "\u001b[2J";
String ANSI_HOME = "\u001b[H";
String ANSI_BOLD = "\u001b[1m";
String ANSI_AT55 = "\u001b[10;10H";
public static final String ANSI_REVERSEON = "\u001b[7m";
String ANSI_NORMAL = "\u001b[0m";
String ANSI_WHITEONBLUE = "\u001b[37;44m";
void setup() {
AnsiConsole.out.println("Hello World (clear screen after this)");
AnsiConsole.systemInstall();
AnsiConsole.out.println(ANSI_CLS);
AnsiConsole.out.println
(ANSI_AT55 + ANSI_REVERSEON + "Hello world (reverse)" + ANSI_NORMAL);
AnsiConsole.out.println
(ANSI_HOME + ANSI_WHITEONBLUE + "Hello world (white on blue)" + ANSI_NORMAL);
AnsiConsole.out.print
(ANSI_BOLD + "Hello world (bold)" + ANSI_NORMAL);
Ansi.Color coolor = Ansi.Color.RED;
Ansi a = Ansi.ansi(80).restorCursorPosition().saveCursorPosition().a(" ").bold().fg(coolor).a("[");
a.bold().a("] ").fg(Ansi.Color.WHITE).a("percentage").a("%").boldOff();
AnsiConsole.out().println(a);
AnsiConsole.out.println(ANSI_CLS);
AnsiConsole.systemInstall();
exit();
}

But it still shows the normal text. Even when i try to export, it gives an error that it can't find the virtual machine.

Greetings,Dippo.

Replies(4)

PhiLho

Re: jAnsi library not working with Processing problem.

4 months ago

Isn't jAnsi made to allow color output to a simple system terminal?
If so, what do you expect Processing to do with it? It is not a command line utility, so I fail to see how you want to use both.

You might have a better success by making a simple Java console program.
Or perhaps I am just clueless.

el_dippo

Re: Re: jAnsi library not working with Processing problem.

4 months ago

If only it would be so easy as you say so. :) I believe Ben Fry likes ASCII art, but ASCII in Java is dull, we need ANSI. So we get color and controll over the cursor. These are the 2 things i really miss in Java. And yes, it would mean that we don't use the canvas, only the console.
After some searching i found this library. So far i can tell, it should work in traditional Java, but not in Processing. And i rather use Processing than traditional Java.
Do you mean i must use traditional Java in this case?

PhiLho

Re: jAnsi library not working with Processing problem.

4 months ago

" Do you mean i must use traditional Java in this case?"
Yes. Processing won't output anything on a system console, so it won't work with it.
"Traditional Java" is dead simple to use, if a JDK (and its JRE) is in the path:

javac AnsiTest.java
java AnsiTest

and you see the result on the command line terminal where you type these commands.
You just need a simple Java class:

public class AnsiTest
{
public static void main(String... args)
{
// Your code here
}
}

No need to install a full IDE for such simple tests. I do that all the time: faster and simpler than making a specific project in Eclipse...

[EDIT] If you use a library, it needs a little more ceremony...
From memory, something like:

javac -cp .;path/to/jAnsi.jar AnsiTest.java
java -cp .;path/to/jAnsi.jar AnsiTest

Replace ; with : on Unix-like systems.

el_dippo

Re: jAnsi library not working with Processing problem.

4 months ago

Thank you, it works. Here is a preview. The front window shows the Java version, in the back is the preview from a website.

Greetings, Dippo.

Top Reply