C++ || How To Remove All Whitespace From A String Using C++

December 05, 2020 admin No comments

The following is a module with functions which demonstrates how to remove all whitespace from a string using C++.

1. Remove All Whitespace

The example below demonstrates the use of ‘Utils::RemoveWhitespace‘ to remove all whitespace from a string.





		
		
			1. Remove All Whitespace
			
C++
			
			// Remove All Whitespace

// Declare word
std::string word = "This   document uses 3 other documents ";

// Remove whitespace from the string
auto result = Utils::removeAllWhitespace(word);

std::cout << result;

/*
 expected output:
    Thisdocumentuses3otherdocuments
*/
			
				
					
				
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						// Remove All Whitespace
 
// Declare word
std::string word = "This   document uses 3 other documents ";
 
// Remove whitespace from the string
auto result = Utils::removeAllWhitespace(word);
 
std::cout << result;
 
/*
 expected output:
    Thisdocumentuses3otherdocuments
*/

2. Utils Namespace

The following is the Utils Namespace. Include this in your project to start using!





		
		
			Utils Namespace
			
C++
			
			// ============================================================================
//    Author: Kenneth Perkins
//    Date:   Dec 5, 2020
//    Taken From: http://programmingnotes.org/
//    File:  Utils.h
//    Description: Handles general utility functions
// ============================================================================
#pragma once
#include <string> 
#include <cctype>
#include <algorithm>

namespace Utils {
    /**
    * FUNCTION: removeAllWhitespace 
    * USE: Removes all whitespace from a string
    * @param source: The source string
    * @return: The modified source string
    */
    std::string removeAllWhitespace(std::string source) {
        source.erase(std::remove_if(source.begin(), source.end(), [](char c) { 
            return std::isspace(static_cast<unsigned char>(c)); 
        }), source.end());
        return source;
    }
}// http://programmingnotes.org/
			
				
					
				
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						// ============================================================================
//    Author: Kenneth Perkins
//    Date:   Dec 5, 2020
//    Taken From: http://programmingnotes.org/
//    File:  Utils.h
//    Description: Handles general utility functions
// ============================================================================
#pragma once
#include <string> 
#include <cctype>
#include <algorithm>
 
namespace Utils {
    /**
    * FUNCTION: removeAllWhitespace 
    * USE: Removes all whitespace from a string
    * @param source: The source string
    * @return: The modified source string
    */
    std::string removeAllWhitespace(std::string source) {
        source.erase(std::remove_if(source.begin(), source.end(), [](char c) { 
            return std::isspace(static_cast<unsigned char>(c)); 
        }), source.end());
        return source;
    }
}// http://programmingnotes.org/

3. More Examples

Below are more examples demonstrating the use of the ‘Utils‘ Namespace. Don’t forget to include the module when running the examples!





		
		
			More Examples
			
C++
			
			// ============================================================================
//    Author: Kenneth Perkins
//    Date:   Dec 5, 2020
//    Taken From: http://programmingnotes.org/
//    File:  program.cpp
//    Description: The following demonstrates the use of the Utils Namespace
// ============================================================================
#include <iostream>
#include <string>
#include <exception>
#include "Utils.h"

void display(const std::string& message);

int main() {
    try {
        // Declare word
        std::string word = "This   document uses 3 other documents ";

        // Remove whitespace from the string
        auto result = Utils::removeAllWhitespace(word);

        display(result);
    } catch (std::exception& e) {
        display("\nAn error occurred: " + std::string(e.what()));
    }

    std::cin.get();
    return 0;
}

void display(const std::string& message) {
    std::cout << message << std::endl;
}// http://programmingnotes.org/
			
				
					
				
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						// ============================================================================
//    Author: Kenneth Perkins
//    Date:   Dec 5, 2020
//    Taken From: http://programmingnotes.org/
//    File:  program.cpp
//    Description: The following demonstrates the use of the Utils Namespace
// ============================================================================
#include <iostream>
#include <string>
#include <exception>
#include "Utils.h"
 
void display(const std::string& message);
 
int main() {
    try {
        // Declare word
        std::string word = "This   document uses 3 other documents ";
 
        // Remove whitespace from the string
        auto result = Utils::removeAllWhitespace(word);
 
        display(result);
    } catch (std::exception& e) {
        display("\nAn error occurred: " + std::string(e.what()));
    }
 
    std::cin.get();
    return 0;
}
 
void display(const std::string& message) {
    std::cout << message << std::endl;
}// http://programmingnotes.org/

QUICK NOTES:
The highlighted lines are sections of interest to look out for.

The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.

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Posted in: Basic, C++ Tags: c++

C++ || How To Remove All Whitespace From A String Using C++

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