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#1
July 29th, 2002, 07:21 AM
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The Gentle Art of File Data Extraction
I'm trying to find and extract data from a file with C, but I can't seem to find a good way to do so. I almost thought I had it there with strncmp() for a while, but that road only led to dissapointment.
Here's what I'm trying to do: Given a file like this; --start of fake.db-- Harry$555-3489$Lake Worth Peter$555-8230$Paris Simone$555-3903$Kiev Fred$555-9308$Chile Gulliver$555-0376$Paris Stephanie$555-0903$Monterrey --end of fake.db-- I want to be able to input a location, a phone number, or a name and return the entire line for my parsing. Anyone have any ideas? Perhaps a new function to explore?
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#2
July 29th, 2002, 02:19 PM
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Ever thought of exploring the strstr() function
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#3
August 6th, 2002, 09:25 AM
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thanks... I looked up some info (http://www.opengroup.org/onlinepubs...xsh/strstr.html) on that function and I'm not sure I see how it can help me...
perhaps you have deeper examples of how this works?
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#4
August 6th, 2002, 09:30 AM
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Code:
if (strstr(searchstr, filestr) != null)
//this line contains the data
else
//this line does not contain the data
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