#!/usr/bin/python3
# -*- coding: utf-8 -*-
"""
Created on Sat Dec 3 18:16:57 2016
@author: taylor@mst.edu
"""

# Basic iterable reversal:
"astr"[::-1]

# reversed function
"".join(list(reversed("astr")))

# reversed with list comp
"".join([char for char in reversed("astr")])

# Manually with a loop:
mystr = "astr"
accumstring = ""
for ichar in range(len(mystr) - 1, -1, -1):
    accumstring += mystr[ichar]


# %% Simple string reversal
def reverse_me(s: str) -> str:
    """
    Reverses a string, and returns nothing.
    """
    if s == "":
        return s
    else:
        return reverse_me(s[1:]) + s[0]


print("Enter something you'd like backwards:")
print(reverse_me("taxes"))


# %% Simple string reversal with tab trick
def reverse_me_indent(s: str, indent: str = "    ") -> str:
    """
    Reverses a string, and returns nothing.
    """
    print(indent, "Starting another call with:", s)
    if s == "":
        return s
    else:
        return reverse_me_indent(s[1:], indent + "    ") + s[0]


print("Enter something you'd like backwards:")
print(reverse_me_indent("evil"))