find content in a string

[MeteriX]

I have website source code in a string.

There are many menu content in a string like as

"<a class=\"menucontent\".... "

I want to find and show above lines from a string, how i will do that?

I don't want save a string to file and find it with with strstr (i know how i will do that), i want just find a content directly from a string.

[Athar]

Using find(): http://www.cplusplus.com/reference/string/string/find/