def search(text,pattern):
    """Given two strings, a "text" and a "pattern", return a boolean indicating
    whether or not the pattern matches exactly against part of the text."""

    for i in range(len(text)-len(pattern)+1):
        if compareAtPositionI(text,pattern,i):
            return True

    return False

def compareAtPositionI(text,pattern,i):
    """Compare pattern against text starting at position i and return
    a boolean indicating whether or not there was a match."""

    #if len(text)-i < len(pattern):
    #    return False

    for j in range(len(pattern)):
        if pattern[j] != text[i+j]:
            return False

    return True



# A shorter version using slicing.
def compareAtPositionI2(text,pattern,i):
    """Compare pattern against text starting at position i and return
    a boolean indicating whether or not there was a match."""
    return pattern == text[i:i+len(pattern)]