Thread: Reading text file in c

Well, if user inputs "222", you copy that in temp string with extra space on end (with sprintf() or strcpy()/strcat()), so you have "222 " string .Then you scan each line in file and compare that line with temp string (with strncmp(), n=strlen(temp_string)). If there's a match, print it with last space replaced with 0 (find it with strrchr() and put there '\0').

EDIT: or just strcat(" ") to inputted string if char array is large enough (i presume it is), so no need for temp string.

Is this duplicate of some post discussed some time ago?

fgets line

sscanf(line, "%d %[^0-9]%d", ...)

something like that?

Originally Posted by vart

Is this duplicate of some post discussed some time ago?

fgets line

sscanf(line, "%d %[^0-9]%d", ...)

something like that?

I think it's a different poster.

What confuses me is that some of the names in the list has First and Last name, the last line however contains only a first name [presumably first name at least]. In general, we would like to see the same content on each line. Assuming the content is incorrect in the sample, the simple solution is to read the first number, first name, last name and last number into variables using fscanf(). If the first number matches the user input, then print the data for that line. If the lines are indeed containing either one or two names, the problem becomes much harder. As I expect this to be a beginner task in file handling, I think I'm right in saying that the file should ALWAYS have first and last name.

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Mats

I'm wrong - it is the same user who posted both threads - obviously couldn't find his/her way back to the original thread, so just posted again. Not to mention that there is a complete and as far as I can tell correct solution posted here, to the same questio by as far as I can tell, the same person (or two people with very similar names are posting the same question on different forums):
http://www.daniweb.com/forums/thread139622.html

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Mats