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Help with grep
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Have to write a program that mimikes a grep. It has to search thru a given file for a certain pattern. I have no idea where to start. Help please.
grep stands for global / regular expression / print. First try a search on a way of performing regular expressions in C. Then find a good tutorial on how those work.
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Join Date: Dec 2005
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> I have no idea where to start.
Read a file, and print it out unmodified.
Then add code to find a fixed string.
Then add code to implement each feature of a regexp in turn.
Each is a small-ish step, built on the success of the previous step.
Read a file, and print it out unmodified.
Then add code to find a fixed string.
Then add code to implement each feature of a regexp in turn.
Each is a small-ish step, built on the success of the previous step.
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