c++

[factfinder]

i have a text file like this
<start>user data<end><start>userdata<start>userdata<end><start >userdata

i have to start reading from <start> and if i find corresponding <end >,then i have to delete that line from file i.e.from <start> to <end> including strings <start> and <end>.If for a given <start>, i dont find <end> then i have to keep that line in file .Here, user data can be any thing like int,char,string whatever.

These are some details
platform:redhatlinux
compiler:g++
language:c++

regards
factfinder

[gpraghuram]

i have a text file like this
<start>user data<end><start>userdata<start>userdata<end><start >userdata

i have to start reading from <start> and if i find corresponding <end >,then i have to delete that line from file i.e.from <start> to <end> including strings <start> and <end>.If for a given <start>, i dont find <end> then i have to keep that line in file .Here, user data can be any thing like int,char,string whatever.

These are some details
platform:redhatlinux
compiler:g++
language:c++

regards
factfinder

R u trying to write a XML validator or a html validator?

Raghu

[questionit]

i have a text file like this
<start>user data<end><start>userdata<start>userdata<end><start >userdata

i have to start reading from <start> and if i find corresponding <end >,then i have to delete that line from file i.e.from <start> to <end> including strings <start> and <end>.If for a given <start>, i dont find <end> then i have to keep that line in file .Here, user data can be any thing like int,char,string whatever.

These are some details
platform:redhatlinux
compiler:g++
language:c++

regards
factfinder

Hi

Welcome to Bytes!

Please post your work you have done so far and the experts here will be more than happy to assist you with your specific problem/query.

Regards
Qi

[factfinder]

R u trying to write a XML validator or a html validator?

Raghu

Thanku for considering request.

This is not Xml/html validator.i am creating a logfile and a function that do some cleaning job (space efficency).These(<start>) are simple string inserted in file to recognise a start of user record.Actually, i have to start reading from <start> and if i find corresponding <end> ,it means that record(userdata) is complete and i have to delete line.In case i do not find <end> coresponding to <start> i have to keep that line.please help me to write a function that could do this.

regards
factfinder .

[sicarie]

The experts on this site are more than happy to help you with your problems but they cannot do your assignment/program for you. Attempt the assignment/program yourself first and post questions regarding any difficulties you have or about a particular function of the code that you don't know how to achieve.

Please read the Posting Guidelines and particularly the Coursework Posting Guidelines.

Then when you are ready post a new question in this thread.

MODERATOR

[factfinder]

Hi

Welcome to Bytes!

Please post your work you have done so far and the experts here will be more than happy to assist you with your specific problem/query.

Regards
Qi

I have the text file (in1.text)

<<<start>20>>everything going fine or not<start>i do not know but I am trying<end><start>Trying is but we can do<startabcdefghijklmnopqrstuvwxyz<end>
<<<start>20>>Trying to do things<end><<<start>20>>well try try and try again<end>


I have to extract tag <<<start>20>> from file.My code is

 
    std::ifstream fin;
    fin.open("in1.txt");
    static int pos;
    int array[10];
        if (fin) {
         std::stringstream ss;
         ss << fin.rdbuf();
         std::string contents = ss.str(); 
 
 
 for(int i =0,search;(search= contents.find("<<<start>", i))!= string::npos;i= search + 1)                       
 
    {
 
    start[search] = "<<<start>";
    array[pos]=search;
    pos++;
 
    }//end for
 
    for(int itr=0;itr<=pos;itr++)
     {
     int number=array[itr];
     string substring=contents.substr(number,number+13);
     cout<<substring<<"\n";
     number=0;
 

The code is giving output

[replyfast@localhost NEW]$ ./a.out
<<<start>20>>
<<<start>20>>i am all right ,just trying to do things<end><<<start>20>>well try try and try again<end>

<<<start>20>>well try try and try again<end>

Aborted



The first output is ok,but subsequent output gives some additional lines.How to rectify code so that it gives only <<<start>20>>
I working on redhat linux(g++ compiler)




Regards
replyfast

[sicarie]

factfinder-

I have already asked you to read the Posting Guidelines, so your lack of code tags and double-posting of the same question is unacceptable. Please read through the links I posted above and follow them in the future or we will have to take action against your account.

Thanks,

sicarie