How many time the string matches
Clash Royale CLAN TAG#URR8PPPHow many time the string matches
I have a pattern like this one here *b* and a string like this one "abcdb" witch is matches twice.
*b*
I want to calculate the number of time string matches, but I have no clue how to achieve this in C language since I'm just a beginner.
Is there any hints of how can make this function in c?
strstr
Yes, I know but I need way out with the asterisk, sorry that It didn't show up earlier, I 've modified my question.
– 카림 사부
5 mins ago
1 Answer
1
For a simple pattern like *b*, you can use strstr defined in <string.h>:
*b*
strstr
<string.h>
const char *p = "abcdb";
p = strstr(p, "b");
p
For more complex regular expressions, there is no standard function to match generic patterns. You can try a install a regex library or write your own engine, a non trivial task, so say the least.
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In plain simple standard C? You can't, since C doesn't have any regular expression functions. There are other ways to do it than regular expressions though. I suggest you read a little about the
strstrfunction.– Some programmer dude
8 mins ago