Searching for a set of chars a string

[JaybOt]

Hi all,

I have written some code to open a file and check for a tag (string) within that file.

No matter how it is coded, the result does not appear to be correct. The code should return 'found' if the string was in the file, and 'not found' otherwise, but it does not appear to work correctly. Here is a pesudo snippit...

pos = 0;
tag = argv[2];

infile.open(file);
while(infile.get(Ch))
{ // read and store the data in array 'data'
data[pos] = Ch;
outfile << Ch;
pos++;
}
infile.close();

if(strcmp(data,tag) == 0)
{ // check if 'tag' is in the array
printf(&quot;found\n&quot;
}
else
{
printf(&quot;not found\n&quot;
}

Essentially, i need to find a small string within a much larger one (that is the file).

Im sure im looking at this too simply, so if anyone can point me in the right direction it would be much appriciated. Thanks in advance.

Regards,
J@yb0t

&quot;Always know what you say, but don't always say what you know!&quot;

 

[dlkfjdlkfjdlfkd]

Replace strcmp with strstr.

 

[JaybOt]

Thanks m8,

Tried that, but get the same result - any substring searched for returns 'found'.

Doesn't strstr() require all the chars of the main string and substring to be of the same CaSe?

This would not work for me as i have no way of knowing what case the main string (file) will be in (mixed).

What i realy need is a way to do a regexp of some kind.

Regards,
j@yb0t

&quot;Always know what you say, but don't always say what you know!&quot;

 

[JaybOt]

Sorry mate,

got it working now! Another error was the reason it did not work!

Regards,
J@yb0t

&quot;Always know what you say, but don't always say what you know!&quot;

 

[newmangj]

Re your mixed-case problem, why don't you just convert both the string to be searched and the search phrase to the same case for the purpose of the strstr - if keeping the case is important fpr subsequent processing then just make a copy of it to be converted.

Cheers - Gavin

 

[ArkM]

No input string null terminator - that's all...