String Formatting in OpenSCAD

// OpenSCAD doesn't have built-in string formatting capabilities like Go's fmt package.
// However, we can demonstrate some basic string operations and printing.

// Define a simple point structure
point = [1, 2];

// Basic string concatenation and printing
echo("struct1: ", point);

// OpenSCAD doesn't have a direct equivalent to Go's %+v or %#v formats
// We can create a custom function to format the point
function format_point(p) = str("x:", p[0], " y:", p[1]);
echo("struct2: ", format_point(point));

// Print the type (limited in OpenSCAD)
echo("type: vector");

// Boolean printing
echo("bool: ", true);

// Integer printing
echo("int: ", 123);

// OpenSCAD doesn't have built-in binary or hex formatting
// We can create custom functions for these
function to_binary(n) = 
    n == 0 ? "0" :
    str(to_binary(floor(n/2)), n%2);
echo("bin: ", to_binary(14));

// Character printing (limited in OpenSCAD)
echo("char: !");

function to_hex(n) =
    n < 16 ? ["0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F"][n] :
    str(to_hex(floor(n/16)), to_hex(n%16));
echo("hex: ", to_hex(456));

// Float printing
echo("float1: ", 78.9);

// OpenSCAD doesn't have scientific notation printing built-in

// String printing
echo("str1: ", "\"string\"");

// OpenSCAD doesn't have pointer printing

// Width formatting is not available in OpenSCAD echo statements

// OpenSCAD doesn't have an equivalent to Sprintf or Fprintf

// This is how we might format a more complex string in OpenSCAD
complex_string = str("A point: ", format_point(point), " and a number: ", 42);
echo("Complex string: ", complex_string);

// Note: OpenSCAD's echo statements always print to the console
// There's no direct equivalent to printing to different outputs like os.Stderr

In OpenSCAD, string formatting capabilities are more limited compared to Go. The language doesn’t have a dedicated string formatting library like Go’s fmt package. Instead, we use the echo function for printing and the str function for string concatenation.

OpenSCAD is primarily a 3D modeling scripting language, so it lacks many features of general-purpose programming languages. However, we’ve implemented some custom functions to mimic certain formatting options, such as converting numbers to binary or hexadecimal representations.

The example demonstrates basic string operations, printing various data types, and creating a custom function to format a point structure. It also shows how to concatenate strings to create more complex output.

Remember that in OpenSCAD, all echo statements print to the console, and there’s no built-in way to print to different outputs or format strings with padding or alignment as in Go.

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String Formatting in OpenSCAD