How Can I Find A Word From Text File Without Case-Sensitivity ...

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How can I find a word from text file without case-sensitivity ...For example I have to find the word "Crow" in text file...but there exists "crow"...Then how can I find that word.???
I don't know that user will enter CROW , Crow , crow, croW , crOW , etc. but I want that user enter it and answer will be same (Same word from text file should be printed)
For Example I have a code to find any word from the starting of line :

C++

void meaning()
        {
            ifstream input( "all.txt" );
            for(string line; getline( input, line ); )
                {
                    if (line.find("crow") == 0)
                    {
                        cout<<line<<endl;
                    }
                }
        }

Here "word" is any word given by user...Please help me to solve problem....

Posted 22-May-14 16:56pm

Crack-Mind-Coder

Updated 23-May-14 18:47pm

v5

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Manikandan10 · Answer 1 · 2014-05-24T04:15:00

The following function compares two strings without any case sensitivity:

C#

bool CompareWithoutCaseSensitivity(string s1, string s2)
{
    bool r = false;
    string tmp = "", tmp2 = "";
    int i;
    for (i = 0; i < s1.length(); i++)
    {
        tmp = tmp + (char)toupper(s1.at(i));
    }
    for (i = 0; i < s2.length(); i++)
    {
        tmp2 = tmp2 + (char)toupper(s2.at(i));
    }
    return (tmp == tmp2);
}

You can improve this code if you find any defects. I wrote it just now and I can't assure you this is the best method.

Manikandan10 · Answer 2 · 2014-05-22T17:10:00

Solution 1

To find a word without case sensitivity, change both what you read from the file and word to all caps. Then check the equality with strcmp.

Posted 22-May-14 17:10pm

Manikandan10

Comments

Crack-Mind-Coder 24-May-14 0:36am

please give example...