Change language

A program to check if a string contains any special character

|

Examples:

 Input: Geeks $ For $ Geeks Output: String is not accepted. Input: Geeks For Geeks Output: String is accepted 

Approach: create a regex object from all the special characters we don’t need, then pass the string to the search method. If any one character in the string matches a regex object, then the search method returns a match object, otherwise None is returned.

Below is the implementation:

python3

# Python program to check for line presence
# contains any special character

 
# import required package

import re

 
# The function checks if the string is
# contains any special character

def run (string): < / p>

 

# Make your own character set and pass

# this is an argument in the compilation method

regex = re. compile ( ’[@_! # $% ^ & amp ; * () "& gt;? / |} {~:] ’ )

  

# Pass string in search

# method of the regex object.

if (regex.search (string) = = None ):

  print ( " String is accepted " )

 

else :

print ( "String is not accepted." )

  

  
Driver code

if __ name__ = = ’__main__’ :

  

  # Enter a string

string = "Geeks $ For $ Geeks "

  

  # call the run function

run (string)

PHP

& lt;? Php
// PHP program to check for line presence
// contains any special character

 
// The function checks if the string is
// contains any battle special character

function run ( $ string )

{

  $ regex = preg_match ( ’ [@_! # $% ^ & amp; * () "& gt;? / |} {~:] ’

$ string ); 

if ( $ regex

print ( "String is accepted" ); 

 

else

  print ( "String is not accepted." ); 

 
// Driver code

 
// Enter a string

$ string = ’Geeks $ For $ Geeks’

 
// call the launch function

run ( $ string ); 

 
// This code is provided by Aman ojha
?" 

Output:

 String is not accepted. 

Shop

Learn programming in R: courses

$

Best Python online courses for 2022

$

Best laptop for Fortnite

$

Best laptop for Excel

$

Best laptop for Solidworks

$

Best laptop for Roblox

$

Best computer for crypto mining

$

Best laptop for Sims 4

$

Latest questions

NUMPYNUMPY

Common xlabel/ylabel for matplotlib subplots

12 answers

NUMPYNUMPY

How to specify multiple return types using type-hints

12 answers

NUMPYNUMPY

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

12 answers

NUMPYNUMPY

Flake8: Ignore specific warning for entire file

12 answers

NUMPYNUMPY

glob exclude pattern

12 answers

NUMPYNUMPY

How to avoid HTTP error 429 (Too Many Requests) python

12 answers

NUMPYNUMPY

Python CSV error: line contains NULL byte

12 answers

NUMPYNUMPY

csv.Error: iterator should return strings, not bytes

12 answers

News


Wiki

Python | How to copy data from one Excel sheet to another

Common xlabel/ylabel for matplotlib subplots

Check if one list is a subset of another in Python

sin

How to specify multiple return types using type-hints

exp

Printing words vertically in Python

exp

Python Extract words from a given string

Cyclic redundancy check in Python

Finding mean, median, mode in Python without libraries

cos

Python add suffix / add prefix to strings in a list

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

Python - Move item to the end of the list

Python - Print list vertically