#! /usr/bin/python

'''
lect07.py
contains examples of functions making use of file input/output
'''

# by: Sharon Tuttle
# last modified: 10-17-06

# assumes that hw4.py is in the same directory as lect07py...!
#    (or in the sys.path...)

import hw4

def pig_latin_file(input_name, output_name):
    '''
    write pig-latin versions of all the lines of file <input_name>
    into file <output_name> - nukes any previous contents of
    <output_name>!
    '''
    input_file = open(input_name, 'r')
    output_file = open(output_name, 'w')

    # pig-latinize each line from input_file

    next_line = input_file.readline()
    while next_line != "":
        next_pig_line = hw4.pig_string(next_line)

        #   (pig_string removes the newline at end of line...)

        output_file.write(next_pig_line + '\n')

        next_line = input_file.readline()

    input_file.close()
    output_file.close()

# assumes that hw5.py is in the same directory as lect07py...!
#    (or in the sys.path...)

import hw5


def letter_freq_file(input_name):
    '''
    shows to the screen a simple ASCII horizontal "bar chart" of
    all of the letters within file <input_name>
    '''
    input_file = open(input_name, 'r')

    # read entire file into a string?!

    input_string = input_file.read()

    hw5.show_counts( hw5.letter_freq(input_string) )