The official Path interpreter.

path.py

# └┐┌┘├┴─┬┤│┼█×÷± #

import random as r

out=''
file=open(input('.path: ')+'.path','r').readlines();import time;import os;cls=lambda:os.system('cls'if os.name in ('nt','dos')else'clear')
row=0
column=0
loopstartrow=0
loopstartcolumn=0
pointer=''
directions=['up','down','left','right']
direction='right'
datatype='lit'
stroutput=''
intoutput=''
strsymbol=''
file2=''
stack=[0]

def move(d):
    global row, column
    if d=='up':row-=1
    if d=='down':row+=1
    if d=='left':column-=1
    if d=='right':column+=1

cls()

while not pointer=='@':
    if column+1>len(file[row]):
        print("Error: Where did the line go?? (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()
        
    pointer=file[row][column]
    if pointer=='─' and (direction=='up' or direction=='down'):
        print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column+1)+")");time.sleep(1.3);exit()
    if pointer=='│' and (direction=='left' or direction=='right'):
        print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column+1)+")");time.sleep(1.3);exit()

    if pointer=='┐':
        if direction=='left' or direction=='down':
            print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column+1)+")");time.sleep(1.3);exit()
        if direction=='up':
            direction='left'
        if direction=='right':
            direction='down'

    if pointer=='┘':
        if direction=='down':
            direction='left'
        elif direction=='right':
            direction='up'
        else:
            print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column+1)+")");time.sleep(1.3);exit()

    if pointer=='┌':
        if direction=='up':
            direction='right'
        elif direction=='left':
            direction='down'
        else:
            print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()

    if pointer=='└':
        if direction=='down':
            direction='right'
        elif direction=='left':
            direction='up'
        else:
            print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()

    if pointer=='┴':
        if not direction=='up':
            direction='up'
        else: print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()

    if pointer=='┬':
        if not direction=='down':
            direction='down'
        else: print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()
    
    if pointer=='┤':
        if not direction=='left':
            direction='left'
        else: print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()

    if pointer=='├':
        if not direction=='right':
            direction='right'
        else: print("Error: That's not how lines work. (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()

    if pointer=='█':
        if direction=='down':    
            direction='u'
        if direction=='up':    
            direction='down'
        if direction=='u':
            direction='up'
        if direction=='right':    
            direction='l'
        if direction=='left':    
            direction='right'
        if direction=='l':
            direction='left'


    if pointer=='&':
        stack+=[0]

    if pointer=='+':
        stack[-1]+=1

    if pointer=='-':
        stack[-1]-=1

    if pointer==',':
        out+=chr(stack[-1])
        stack.pop()

    if pointer=='.':
        out+=str(stack[-1])
        stack.pop()
    
    if pointer==':':
        stack+=[stack[-1]]
        
    if pointer=='$':
        stack.pop()

    if pointer=='~':
        stack+=[ord(input('" ')[0])]

    if pointer=='#':
        stack+=[int(input('# '))]
        
    if pointer=='j':
        stack+=[int(str(stack[-1])+str(stack[-2]))]
        stack.pop(-2)
        stack.pop(-2)
    if pointer=='J':
        stack+=[int(str(stack[-2])+str(stack[-1]))]
        stack.pop(-2)
        stack.pop(-2)

    if pointer in '^v<>' and stack[-1]>stack[-2]:
        if pointer=='^':
            direction='up'
        if pointer=='v':
            direction='down'
        if pointer=='<':
            direction='left'
        if pointer=='>':
            direction='right'

    if pointer in '0123456789':
        stack+=[int(pointer)]
    
    if pointer=='×':
        stack+=[stack[-1]*stack[-2]]
        stack.pop(-2)
        stack.pop(-2)

    if pointer=='÷':
        stack+=[round(stack[-1]/stack[-2])]
        stack.pop(-2)
        stack.pop(-2)
    
    if pointer=='=':
        if stack[-1]==stack[-2]:
            stack+=[1]
        else: stack+=[0]
    
    if pointer=='p':
        print(out)
        out=''
    
    if pointer=='%':
        stack+=[stack[-2]]
        stack.insert(-3,stack[-2])
        stack.pop()
        stack.pop()

    if pointer=='g':
        stack+=[stack[stack[-1]]]
        stack.pop(-2)

    if pointer=='r':
        stack.pop(stack[-1])
        stack.insert(stack[-1],stack[-2])


    if pointer=='±':
        move(direction)
        pointer=file[row][column]
        if pointer=='+':
            stack+=[stack[-1]+stack[-2]]
        elif pointer=='-':
            stack+=[stack[-1]-stack[-2]]
        else:print("Error: That's not how you proceed the '±' instruction. (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()


    if pointer=='w':
        time.sleep(stack[-1]/10)
        stack.pop()

    if pointer=='q':
        ln=stack[-1]
        stack.pop()
        if '\n' in file[ln]:
            out+=file[ln][:-1]
        else: out+=file[ln]
    
    if pointer == '?':
        direction=directions[r.randrange(1,4)]

    if not pointer in '?^v<>Jjqpgrw#~$:.,-+&└┐┌┘%├┴┬┤─│┼█@0123456789×÷±=':
            print("Error: Where did the line go?? (Line "+str(row+1)+", Column "+str(column)+")");time.sleep(1.3);exit()

    move(direction)
    if '*' in file:
        print(stack)

print(out)

time.sleep(.5)