Re: [libreoffice-users] testing out 2 new large word list English dictionaries.

On 11/06/2011 07:55 AM, webmaster for Kracked Press Productions wrote:
> I would like to see a "simple" working code in Python though.  If I 
> ever decided to try to retrain the programming part of my brain, I was 
> told to try Python.
>
>
> On 11/05/2011 11:05 PM, Winston C. Yang wrote:
> > webmaster:
> >
> > Possibly a convenient language for comparing the word lists would be 
> > Python.
> >
> > --- Python has a data structure "dict" (dictionary, hashtable, 
> > associative array).
> >
> > --- Python has a data structure "set".
> >
> > If you wish, I can email you short, working, example code.
> >
> > Winston
> >
> > On 11/05/2011 10:08 PM, webmaster for Kracked Press Productions wrote:
> > > If I still could remember my basic C programming, I would write a 
> > > program comparing the different word lists to see which words are 
> > > not common, but after 3 strokes I have not programmed such a package 
> > > in many years.  Actually a few months after the last stroke.


webmaster:

Below is some example, elementary Python code that reads two files, with 
one word per line, and writes an output file with the words that are in 
exactly one of the files.

If you wish, you can use the code in LibreOffice.

If you have any comments or questions, email me.

Winston



Possibly it is good that you see the results first. Then, if you are 
interested, then you can read about how to generate the results.

On a command line, you will type the following:

    python3.2 find_nonshared_words.py

(You can also type "python2.7" instead of "python3.2". But realize that 
Python 3.2 is not always backwards-compatible with Python 2.7.)

This command will generate the following output file:

output_file.txt:
a1
a2
a3
a4
a5
a6
b1
b2
b3
b4

Below, I show you how to create the results:

Create the following two input files. (Words starting with "a" appear in 
only file 1. Words starting with "b" appear in only file 2. Words 
starting with "c" appear in both files, and should be ignored by the code.)

input_file1.txt:
a1
a2
c1
a3
a4
c2
a5
c3
a6

input_file2.txt:
c1
b1
b2
b3
c2
c3
b4

Then create a file called find_nonshared_words.py:

def create_set_from_file(input_file_name):

    input_file = open(input_file_name)

    s = set()
    for line in input_file:
        # Delete any leading or trailing whitespace.
        s.add(line.strip())

    input_file.close()

    return s

set1 = create_set_from_file("input_file1.txt")
set2 = create_set_from_file("input_file2.txt")
set_of_words_in_exactly_one_file = set1.symmetric_difference(set2)

output_file_name = "output_file.txt"
output_file = open(output_file_name, "w+")
for word in sorted(set_of_words_in_exactly_one_file):
    output_file.write(word + "\n")

output_file.close()

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