String search

[nganglove]

C++ string search
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Hello, please can any one help me? I am given an assigment in C++ to read a text file and search for certain words.If those stated words are found, then I should print the enire them including the entire line. Below is an example of such a text file


Example text file:

Possible failures:
-> Member=1, FSce=1, MP=13.16%, [M]atching (5/5)=100%, [P]rediction (5/38)=13.16%,
input SA0 at port S0 of
instance=ip_ins t.pip_kau_i.ins t_pip_kau_dp.in st_ka sumi.dp.keysche duler.i_17
(num=82723)
x=3134600 y=2549120 x=3136840 y=2553040 orientation=FS,
module=mx21i1x1 v net=ip_inst.pip _kau_i.s_cikey_ reg[16] (num=58177),
layer=M2 (x1=3137540 y1=2551360 x2=3137540 y2=2552200),
layer=M2 (x1=3140340 y1=2552200 x2=3140340 y2=2554440),
layer=M2 (x1=3140340 y1=2554440 x2=3140340 y2=2559200),
layer=M3 (x1=3136140 y1=2559200 x2=3140340 y2=2559200),
layer=M3 (x1=3137540 y1=2552200 x2=3140340 y2=2552200),
layer=M3 (x1=3140340 y1=2559200 x2=3145100 y2=2559200)
ToggleLowPat=<n one> ToggleHighPat=7 0 (FailureSet=171 745);


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Possible failures:
-> Member=1, FSce=2, MP=4.76%, [M]atching (5/5)=100%, [P]rediction (5/105)=4.76%,
output SA0 at port Q of instance=ip_ins t.pip_kau_i.ins t_reg.ucc_key0_ reg_r eg_16
(num=96536)
x=3130120 y=2556960 x=3136280 y=2560880 orientation=FS,
module=df7sqx1v net=ip_inst.pip _kau_i.s_cikey_ reg[16] (num=58177),
layer=M2 (x1=3137540 y1=2551360 x2=3137540 y2=2552200),
layer=M2 (x1=3140340 y1=2552200 x2=3140340 y2=2554440),
layer=M2 (x1=3140340 y1=2554440 x2=3140340 y2=2559200),
layer=M3 (x1=3136140 y1=2559200 x2=3140340 y2=2559200),
layer=M3 (x1=3137540 y1=2552200 x2=3140340 y2=2552200),
layer=M3 (x1=3140340 y1=2559200 x2=3145100 y2=2559200)
ToggleLowPat=2 ToggleHighPat=7 0,
Internal Fault at instance=ip_ins t.pip_kau_i.ins t_reg.ucc_key0_ reg_r eg_16,
module=df7sqx1v
x=3130120 y=2556960 x=3136280 y=2560880 orientation=FS (FailureSet=250 955);


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So my question is how can I read each paragraph separately for example, in paragraph 1, I want to search for "Member=1, FSce=1" and later "instance=" . For each of these words found, I want to print the entire line where each lies.
Below is the C++ code I started but get stock midway.I can only search for "Member=1, FSce=1" but the other.
I'm interestted on how to read and stop within paragraphs or read until a specified delimiter is met, and do the search.

My code

#include <algorithm>
#include <sstream>
#include <fstream>
#include <string>
#include <cstring>
#include <iostream>
using namespace std;
 
int linecount;
int happencount;
 
 
unsigned int findtheword (string token, string line, int drill)
{
   unsigned int gristle = line.find(token, drill);
   if (gristle == string::npos)
   {
      return gristle;
   }
   happencount++;
   findtheword (token, line, (gristle + 1));
   return gristle;
}
 
 
int main(int argc, char *argv[])
 
// argc tells us how many arguments were passed in th array
// argv is effectively an array of pointers to the arguments
// Each argument is passed as a seperate character array,
//so argv[1] points to the first argument text,ie the word to look for
//argv[2] points to the second argument text,ie the file to be open, etc.
//(argv[0] gives you the name of the executable file for the program itself)
 
{
   argv[1] = "Member=1, FSce=1";
 
   argv[2] = "listings/NB0264.00_NB0264-22B6_X2_Y48_dp_bf_X3_plat_max_20070110081127_dp_bf _faloc.lis";
 
   // argv[3] = "instance=";
   if (argc!= 3)
   {
      cout << "Proper usage: findWord <word> <file>\n";
      cout << "where\n";
      cout << " <word> is a sequence of non-whitespace characters\n";
      cout << " <file> is the file in which to search for the word\n";
      cout << "example: findWord the test.txt\n";
      return 0;
   }
 
   ifstream myFile(argv[2]);
   if (myFile)
   { // if the file was successfully opened
      cout << "Searching for 'argv[1]' in file 'argv[2]'\n";
      cout << endl;
 
      string line;
      while (getline(myFile, line))
      {
         linecount ++;
         unsigned int grip = findtheword(argv[1],line,0);
         if (grip != string::npos)
         {
            cout << "argv[1] Found on line"<< ' ' << linecount <<endl;
            cout << line <<endl;
            cout << setfill(';');
         }
     }
 
      cout << "The # of occurrences of ' ";
      cout << argv[1];
      cout << "' = ";
      cout << happencount;
      cout << endl << endl;
 
      cout << "Now searching for 'argv[3]' up to the specified delimiter:\n";
      cout << endl;
 
      while (argv[2] && (getline (myFile, line, ';'))){}
 
      myFile.close(); // close the file now that we're done with it
   }
   else
   {
      cout << "File '";
      cout << argv[2];
      cout << "' could not be opened\n";
   }
   return 0;
}

[sicarie]

Looks like you are already using getline() to pull the lines in, have you looked into strtok() or any of the other string.h functions to manipulate what is returned by getline()?