Use GLib to write a command-line utility to count the frequency of words in a text file.
A word is any substring separated by whitespace. Before counting the words, strip punctuation and convert the string to lowercase.
Output should contain each word in the text file followed by the number of times the word occurs, sorted in alphabetical order:
$ cat > file.txt <<EOF
> Output should contain each word in the text file followed by the
> number of times the word occurs, sorted in alphabetical order:
>
> The quick brown fox jumped over the lazy dog.
> EOF
$ ./freq file.txt
alphabetical 1
brown 1
by 1
contain 1
dog 1
each 1
file 1
followed 1
fox 1
in 2
jumped 1
lazy 1
number 1
occurs 1
of 1
order 1
output 1
over 1
quick 1
should 1
sorted 1
text 1
the 5
times 1
word 2
Consider using at least the following GLib features:
- I/O Channels (to read the text file)
- Balanced Binary Trees (to store the words and their counts)
- String Utility Functions
Hint: other features may be useful as well; the GLib documentation repays close study.
Provide a Makefile to link your program with GLib.