Bantas

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Bantas is an esoteric programming language developed by Jon Velasco and inspired by Blank. The word Bantas is a Filipino/Tagalog term for punctuation mark.

Commands

Cmd	Description
@	Sets the pointer position or stack number.
?	Prints or displays output to the console.
>	Receives user input from the console.
<	Pushes a value onto the stack.
~	A debugging tool that displays the current values of the stack and outputs them to a file.
x	A loop that iterates through the stack and displays its values horizontally.
X	A loop that iterates through the stack and displays its values vertically.
%	Sets the title of the console window.
+	Addition: Adds a specified value or another stack's value to a stack.
-	Subtraction: Subtracts a specified value or another stack's value from a stack.
*	Multiplication: Multiplies a stack's value by a specified value or another stack's value.
/	Division: Divides a stack's value by a specified value or another stack's value.
^	Exponentiation: Raises a value to a power.
&	Concatenation: Joins two strings together.
|	Loads or initializes values in the stack.
[]	Defines a block of code for repetition or looping. (See sample codes for examples).
()	Used for string manipulation.
_	Returns the length of a string.
{	Calculates the sine of a value.
}	Calculates the cosine of a value.
\	Calculates the tangent of a value.

Examples

Hello World

?,Hello World!

99 bottles of beer

%,PROGRAM : 99 Bottles of Beer
@,1
<,99
[,1
   @,2
   <,@1
   @,3
   <,@1
   &, 
   &,bottles of beer on the wall, 
   &,@1
   &, bottles of beer
   ?,@3
   @,2
   -,1
   @,4
   <,Take one down, pass it around, 
   &,@2
   &, bottles of beer
   ?,@4
   ?,
   @,1
   -,1
],1

Fibonacci sequence

%,PROGRAM : Fibonacci Sequence
@,1
<,1
@,2
<,1
@,3
<,
@,4
<,1
[,4
   @,3
   &,@1
   &, 
   &,@2
   &, 
   @,1
   +,@2
   @,2
   +,@1
   @,4
   +,1
],10
?,@3

Factorial of a Number

@,1
>,Enter a number:
@,2
<,1
[,1
   @,2
   *,@1
   @,1
   -,1
],1
?,@2

Reverse

%,PROGRAM : REVERSE A STRING
@,1
<,1
@,2
>,Enter a string:
@,4
<,
@,5
_,@2
[,1
   @,3
   <,@2
   ),@1
   (,1
   @,4
   &,@3
   @,1
   +,1
],@5
?,@4

Radians to degrees

%,PROGRAM : RADIANS TO DEGREES
@,1
>,Enter angle value in radians:
@,2
<,180
/,3.1416
*,@1
@,3
<,The value in degrees is 
&,@2
?,@3

External resources

• Website