| 摘要 |
Apparatus having corresponding methods and computer programs, to detect a pattern in a string, comprises a memory circuit to store W-character segments of the pattern, where each segment comprises a fragment of the pattern; a key circuit to generate W-character keys each including a fragment of the string; a comparison circuit to compare the keys and the segments; where, when a segment matches a key, the comparison circuit indicates an initial match between the pattern and the string; and where, when one of the segments matches only a L-character fragment of one of the keys, wherein L<W, the key circuit generates a new key including the L-character fragment and a K-character fragment of the string including K=W−L consecutive characters from the string that are adjacent to the L matching characters in the string.
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