How to extract licenses from headers

Sometimes there is no license file, and you will need to extract the license from a header file, as in the following example:

def package():
    # Extract the License/s from the header to a file
    tmp = tools.load("header.h")
    license_contents = tmp[2:tmp.find("*/", 1)] # The license begins with a C comment /* and ends with */"LICENSE", license_contents)

    # Package it
    self.copy("license*", dst="licenses",  ignore_case=True, keep_path=False)