Examine individual changes

''''MAWP''' is a stack-based [[esoteric programming language]] that was made in 2020. ==Language Overview== ===Version 0.0=== '''MAWP''' works on an integer stack, starting with an initial value of 1. The base operators are: Any single-digit integer pushes that integer to stack. M takes top two values of the stack and sums them. [3,2,1] ==> [3,3] A takes top two values of the stack and subtracts the first from the other. [3,2,1] ==> [3,1] W takes top two values of the stack and multiplies them. [3,2,1] ==> [3,2] P takes top two values of the stack and floor divides the second by the other. [3,2,1] ==> [3,2] % pops top of stack. [3,2,1] ==> [3,2] ! duplicates top of stack. [3,2,1] ==> [3,2,1,1] : prints top of stack without newline, removing it. [3,2,1] ==> [3,2] (STDOUT:1) ; prints top of stack as ascii char without newline, popping it. [3,2,72]==> [3,2] (STDOUT:H) . terminates program [ start of loop ] end of loop. If top of stack doesn't equal to 0, then moves back to start of loop. (inspired by [[brainfuck]]) ? conditional. If top of stack doesn't equal to 0, skips next operator. | reads a character off STDIN and pushes its ascii value. NOTE:integers still get pushed according to ascii value, not actual integer value. ===Version 0.1=== '''MAWP 0.1''' introduces several new features, and changes a couple old ones: ~ reverses stack [3,2,1] ==> [1,2,3] [ now also jumps to its ] if top of stack equals to 0 ( start of inverted [] loop. Jumps to its ) if top of stack doesn't equal to 0 ) end of inverted [] loop. Jumps to its ( if top of stack equals to 0 < long conditional. If top of stack doesn't equal to 0, jumps to its > > end of long conditional A now gives the absolute value of the difference | now pushes whole input byte by byte, not only the first one _ pushes length of stack [3,2,1] ==> [3,2,1,3] ==Interpreter== Currently, the only online interpreter available for '''MAWP 0.1''' is hosted on [https://8dion8.github.io/ This page] However, this is an offline script written in python 3.8: #Ver 0.1 from time import sleep def buildsquarebracemap(code): temp_bracestack, bracemap = [], {} for position, command in enumerate(code): if command == "[": temp_bracestack.append(position) if command == "]": start = temp_bracestack.pop() bracemap[start] = position bracemap[position] = start return bracemap def buildcurlybracemap(code): temp_bracestack, bracemap = [], {} for position, command in enumerate(code): if command == "(": temp_bracestack.append(position) if command == ")": start = temp_bracestack.pop() bracemap[start] = position bracemap[position] = start return bracemap def buildlongcondmap(code): temp_bracestack, bracemap = [], {} for position, command in enumerate(code): if command == "<": temp_bracestack.append(position) if command == ">": start = temp_bracestack.pop() bracemap[start] = position bracemap[position] = start return bracemap def run_mawp(code,input_,debug=False, delay=0.1): formatted_input = list(input_) pos = 0 stack = [1] squarebracemap = buildsquarebracemap(code) curlybracemap = buildcurlybracemap(code) longcondmap = buildlongcondmap(code) while True: char = code[pos] if debug:print(stack, char) if char == 'M': top = int(stack[-1]) stack.pop(-1) sec = int(stack[-1]) stack.pop(-1) stack.append(top+sec) elif char == 'A': top = int(stack[-1]) stack.pop(-1) sec = int(stack[-1]) stack.pop(-1) stack.append(abs(sec-top)) elif char == 'W': top = int(stack[-1]) stack.pop(-1) sec = int(stack[-1]) stack.pop(-1) stack.append(top*sec) elif char == 'P': top = int(stack[-1]) stack.pop(-1) sec = int(stack[-1]) stack.pop(-1) stack.append(int(sec//top)) elif char in ['0','1','2','3','4','5','6','7','8','9']: stack.append(char) elif char == '%': stack.pop(-1) elif char == '!': stack.append(stack[-1]) elif char == ':': top = int(stack[-1]) stack.pop(-1) print(str(top),end='') elif char == ';': top = int(stack[-1]) stack.pop(-1) print(str(chr(top)),end='') elif char == '.': return 0 elif char == ']': if stack[-1] != 0: pos = squarebracemap[pos] elif char == '[': if stack[-1] == 0: pos = squarebracemap[pos] elif char == ')': if stack[-1] == 0: pos = curlybracemap[pos] elif char == '(': if stack[-1] != 0: pos = curlybracemap[pos] elif char == '?': if stack[-1] != 0: pos += 1 elif char == '|': stack.extend(ord(x) for x in formatted_input) elif char == '~': stack = list(reversed(stack)) elif char == '<': if stack[-1] != 0: pos = longcondmap[pos] elif char == '_': stack.append(len(stack)) pos += 1 sleep(delay) Which is run by calling run_mawp() with code and STDIN passed into it. ==Example Programs== ===Hello, World!=== The following program produces the classic Hello, World! 98W;55W4W1M;93W4W;93W4W;94W1M3W;58W4M;84W;98M5W2M;94W1M3W;99M1M6W;93W4W;55W4W;92M3W;. ===All integers=== This program will output each integer from 1 to infinity in order until it is terminated 1[!:1M] ===Truth Machine=== |68WA!~M1A?:?.[!:] ==Computational class== MAWP 0.0 is a [[push-down automaton]], as it can be translated from [[BFStack]] (but nothing more powerful): {| class="wikitable sortable" ! BFStack !! MAWP |- | <code>&gt;</code> || <code>0</code> |- | <code>&lt;</code> || <code>%</code> |- | <code>.</code> || <code>!;</code> |- | <code>,</code> || <code>|</code> |- | <code>+</code> || <code>1M</code> |- | <code>-</code> || <code>1A</code> |- | <code>[</code> || <code>[</code> |- | <code>]</code> || <code>]</code> |} [[Category:Languages]] [[Category:2020]] [[Category:Stack-based]] [[Category:Implemented]] [[Category:Push-down automata]]'