info.debatty.java.stringsimilarity.CharacterInsDelInterface Maven / Gradle / Ivy

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Implementation of various string similarity and distance algorithms: Levenshtein, Jaro-winkler, n-Gram, Q-Gram, Jaccard index, Longest Common Subsequence edit distance, cosine similarity...

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package info.debatty.java.stringsimilarity;


/**
 * As an adjunct to CharacterSubstitutionInterface, this interface
 * allows you to specify the cost of deletion or insertion of a
 * character.
 */
public interface CharacterInsDelInterface {
    /**
     * @param c The character being deleted.
     * @return The cost to be allocated to deleting the given character,
     * in the range [0, 1].
     */
    double deletionCost(char c);

    /**
     * @param c The character being inserted.
     * @return The cost to be allocated to inserting the given character,
     * in the range [0, 1].
     */
    double insertionCost(char c);
}