Any options for better interactive terminal-style I/O?

[Dave Britten]

Right now, the Prime just has PRINT(), which can clear the screen, or print a line of text. There's also the INPUT() function, but that displays full-screen input forms, much like INFORM on the 48.

Are there any libraries floating around that provide more traditional interactive terminal I/O? Like the sort of thing you'd get with Disp/Input on a TI, or Write/WriteLn/ReadLn in Turbo Pascal, or PRINT/INPUT in just about any old version of BASIC.

[compsystems]

Hello, this is a very requested requirement, I do not know what is the difficulty of incorporating it, hardware?

The first step is to include xcas printf cmd

An example of code between HP-PRIME_XCAS and XCAS, notice how difficult and ugly/primitive it is to read mathematical expressions in 1D

XCAS HPPRIME CODE

PHP Code:

#cas
    terminalViewTest():=
    begin
        local x, y;
        assume( x, symbol ); 
        assume( y, symbol );
        autosimplify(nop);
        DispG; 
        ClrIO; 
        print( "Terminal View, 2D printing" );
        
        print( "" );      
        print( "Expr0:" );
        print( (x^3-6*x^2+11*x-6 | x=y) + (x^4-x^3-6*x^2+11*x-6)/x^6);
        
        print( "" );
        print( "Expr1:" ); print( "" ); f(x):=x^3-2*x^2+1*x-1;
        print( 'f(x)' ); print( "" );
        print( f(x) );print( "" );
        
        print( "" );
        print( "Expr2:" ); print( "" );
        print( 'f(x) | x=y' ); print( "" );
        print( 'x^3-2*x^2+1*x-1 | x=y' ); print( "" );
        print( f(x) | x=y ); print( "" );
        print( 'f(y)' ); print( "" );
        print( f(y) ); print( "" );
        
        print( "" );
        print( "Expr3:" ); g(x):=1/(x+3);
        print( 'g(x)' ); print( "" );; 
        print( g(x) );  print( "" );
   
        print( "" );     
        print( "Expr4:" );
        print( 'f(g(x))' ); print( "" ); 
        print( f(g(x)) ); print( "" );

        print( "" );     
        print( "Expr5:" );        
        print( 'g(f(x))' ); print( "" );
        print( g(f(x)) ); print( "" );
        
        return "Done";
    end;
#end 


XCAS CODE

PHP Code:

terminalViewTest():={
        local x, y;
        assume( x, symbol ); 
        assume( y, symbol );
        autosimplify( nop) ;
        DispG; 
        ClrIO; 
        printf( "Terminal View, 2D printing" );
        
        printf( "" );      
        printf( "Expr0:" );
        printf( (x^3-6*x^2+11*x-6 | x=y) + (x^4-x^3-6*x^2+11*x-6)/x^6);
        
        printf( "" );
        printf( "Expr1:" ); printf( "" ); f(x):=x^3-2*x^2+1*x-1;
        printf( 'f(x)' ); printf( "" );
        printf( f(x) );printf( "" );
        
        printf( "" );
        printf( "Expr2:" ); printf( "" );
        printf( 'f(x) | x=y' ); printf( "" );
        printf( 'x^3-2*x^2+1*x-1 | x=y' ); printf( "" );
        printf( f(x) | x=y ); printf( "" );
        printf( 'f(y)' ); printf( "" );
        printf( f(y) ); printf( "" );
        
        printf( "" );
        printf( "Expr3:" ); g(x):=1/(x+3);
        printf( 'g(x)' ); printf( "" );; 
        printf( g(x) );  printf( "" );
   
        printf( "" );     
        printf( "Expr4:" );
        printf( 'f(g(x))' ); printf( "" ); 
        printf( f(g(x)) ); printf( "" );

        printf( "" );     
        printf( "Expr5:" );        
        printf( 'g(f(x))' ); printf( "" );
        printf( g(f(x)) ); printf( "" );
        
        return "Done";
}:; 


poll
Is anyone else interested in having a better terminal view?

.

[ijabbott]

(07-26-2018 03:56 PM)compsystems Wrote:  The first step is to include xcas printf cmd

That's a great idea, although I guess the Terminal widget will only support the current plain text output, like a traditional terminal. Displaying textbook-formatted output would require a different sort of widget more like the notebook format used for interactive calculations.