# Module for operating system calls
import os
# Module for working with regular expressions
import re

'''
Example usage of ways to interact with files
'''

new_text = ""

# Clears terminal based on OS
def clear():
    if os.name == 'nt':
        os.system('cls')
    else:
        os.system('clear')

# open file as read
def f_open_read(x):
    file_name = (x)
    r = open( file_name , 'r' )
    if r.mode == 'r':
        contents = r.read()
        r.close()
    print("%s" % str(contents))
    
# open file to write to
def f_open_write(x, content):
    file_name = (x)
    text = (content)
    f = open( file_name , 'w+' )
    f.write(str(text))
    f.close()

# open file to append to (with a new line char)
def f_open_append(x, content):
    file_name = (x)
    text = ("\n" + str(content))
    f = open( file_name , 'a' )
    f.write(str(text))
    f.close()

'''
# example usage cases:

new_text = input("What text do you want to add? \n")
f_open_write('text.txt', str(new_text))
f_open_append('text.txt', str(new_text))
f_open_read('text.txt')
'''

# using "with" automatically closes file after working with it and is preferable:
with open("text.txt", "r") as log:
    data = log.read()
    print(data)

# Can read and act on individual lines of a doc:
with open("text.txt", "r") as log:  
    data = log.readlines() 
    for line in data:
        print(line)

# line.split can be used as field separator:
with open("text.txt", "r") as log:  
    data = log.readlines()
    for line in data:
        fields = line.split("|")
        print(fields)