Thread: assigning different values to the underscore char

I have tried to find an answer to this for a couple of hours with no luck. It's probably something really simple but here it goes.

I am building a search program which searches a file (which is supplied as one of the arguments) for a word/pattern I imput as one of the other arguments.

The problem I have is that the pattern or search word can include the '_' character and that that character represents all the characters a - z as well as A - Z.

Now I just don't know how i can define that underscore character to be all those letters, so that when for example I search for a_e, that it finds words are, ate and so on.

I don't need help with anything else in coding (so far), just a simple example or hint on how I can accomplish the above.

thanx in advance!

If the current match character is underscore, then test the input character is isalpha()
See ctype.h

Or you could just grab the source code for say regex and see how it's managed there.

Unless you're specifically setting out to do it yourself, just re-using an existing library would be the way to go IMO.