Category: character

Send empty message in whatsapp

Before starting this, you need to open web.whatsapp.com in your computer and sync your account with your mobile. Then go to the following website.

https://coolsymbol.com/zero-width-space-joiner-non-joiner-ltr-rtl-lrm-rlm-characters-symbols.html

Here click on either zero width joiner or zero width non joiner. Choose copy and paste in the web.whatsapp.com under any chat to whom you wish to send the empty message. In ubuntu or linux we can type this character by holding Ctrl+Shift+U and press 200C

Here is how it looks.

In the above message you can cleary see at top right corner the empty message.

Finding character frequency using Python – Dictionary

Similar to word frequency there is sometimes a need to find the character frequency in a text file containing corpora. So using below script we can just do that.

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#open a file and find its character frequency
with open('raw_corpus.txt') as fp:
    lines = fp.read().split("n")   #here lines contains entire file contents

#incremental variable
i=1;

#dictionary to save characters as keys and values as fruquency
charcount={}


#to access file contents line by line
for line in lines:

    #convert to lowercase
    lower_line = line.lower()

    chars = lower_line

    #for loop to access current line characters 
    for char in chars:
        if char not in charcount:
            charcount[char] = 1
        else:
            charcount[char] += 1
    
    #print (i,"t",lower_line)
    
    i = i + 1                 #increment i 


#print the dictionary with sorted keys(tokens) and values
for k in sorted(charcount):
    print (k, charcount[k])

This script will open the file ‘raw_corpus.txt’ read its contents line by line, then find each character frequency and store in dictionary.

Dictionary in Python is similar to hashes in Perl. It stores a values for each corresponding key, duplicate keys are overridden when a same key is encountered while storing.