Java uses Unicode as its text storage model. In general, this is a good thing; it allows the simultaneous manipulation of text from many different languages and scripts. However, searching through Unicode text can be difficult, because most of the well-known, efficient search algorithms don't work very well in Unicode. The combining characters, accents, and multi-character collation elements in many languages make matters even worse.

This talk will discuss each of these problems and discuss how to solve them using the features available in the Java class libraries. Using successively more complete examples, we will work up to a complete solution that performs efficient, Boyer-Moore searches on multilingual text.

This talk is based on a paper that was published in "Java Report" in February, 1999.

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29 January 1999, Webmaster