How to use Snake class of org.assertj.core.util.diff.myers package

Best Assertj code snippet using org.assertj.core.util.diff.myers.Snake

Source:MyersDiff.java

...81    final int MAX = N + M + 1;82    final int size = 1 + 2 * MAX;83    final int middle = size / 2;84    final PathNode[] diagonal = new PathNode[size];85    diagonal[middle + 1] = new Snake(0, -1, null);86    for (int d = 0; d < MAX; d++) {87      for (int k = -d; k <= d; k += 2) {88        final int kmiddle = middle + k;89        final int kplus = kmiddle + 1;90        final int kminus = kmiddle - 1;91        PathNode prev;92        int i;93        if ((k == -d) || (k != d && diagonal[kminus].i < diagonal[kplus].i)) {94          i = diagonal[kplus].i;95          prev = diagonal[kplus];96        } else {97          i = diagonal[kminus].i + 1;98          prev = diagonal[kminus];99        }100        diagonal[kminus] = null; // no longer used101        int j = i - k;102        PathNode node = new DiffNode(i, j, prev);103        // orig and rev are zero-based104        // but the algorithm is one-based105        // that's why there's no +1 when indexing the sequences106        while (i < N && j < M && equals(orig.get(i), rev.get(j))) {107          i++;108          j++;109        }110        if (i > node.i) node = new Snake(i, j, node);111        diagonal[kmiddle] = node;112        if (i >= N && j >= M) return diagonal[kmiddle];113      }114      diagonal[middle + d - 1] = null;115    }116    // According to Myers, this cannot happen117    throw new IllegalStateException("could not find a diff path");118  }119  private boolean equals(T orig, T rev) {120    return equalizer.equals(orig, rev);121  }122  /**123   * Constructs a {@link Patch} from a difference path.124   *125   * @param path The path.126   * @param orig The original sequence.127   * @param rev The revised sequence.128   * @return A {@link Patch} script corresponding to the path.129   */130  public Patch<T> buildRevision(PathNode path, List<T> orig, List<T> rev) {131    checkArgument(path != null, "path is null");132    checkArgument(orig != null, "original sequence is null");133    checkArgument(rev != null, "revised sequence is null");134    Patch<T> patch = new Patch<>();135    if (path.isSnake())136      path = path.prev;137    while (path != null && path.prev != null && path.prev.j >= 0) {138      checkState(!path.isSnake(), "bad diffpath: found snake when looking for diff");139      int i = path.i;140      int j = path.j;141      path = path.prev;142      int ianchor = path.i;143      int janchor = path.j;144      Chunk<T> original = new Chunk<>(ianchor, copyOfRange(orig, ianchor, i));145      Chunk<T> revised = new Chunk<>(janchor, copyOfRange(rev, janchor, j));146      Delta<T> delta;147      if (original.size() == 0 && revised.size() != 0) {148        delta = new InsertDelta<>(original, revised);149      } else if (original.size() > 0 && revised.size() == 0) {150        delta = new DeleteDelta<>(original, revised);151      } else {152        delta = new ChangeDelta<>(original, revised);153      }154      patch.addDelta(delta);155      if (path.isSnake()) path = path.prev;156    }157    return patch;158  }159  /**160   * Creates a new list containing the elements returned by {@link List#subList(int, int)}.161   * @param original The original sequence. Must not be {@code null}.162   * @param fromIndex low endpoint (inclusive) of the subList.163   * @param to high endpoint (exclusive) of the subList.164   * @return A new list of the specified range within the original list.165  166   */167  private List<T> copyOfRange(final List<T> original, final int fromIndex, final int to) {168    return new ArrayList<>(original.subList(fromIndex, to));169  }...

Snake

Using AI Code Generation

1import org.assertj.core.util.diff.myers.*;2import org.assertj.core.util.diff.*;3import org.assertj.core.util.diff.DiffRowGenerator.*;4import org.assertj.core.util.diff.DiffRow.Tag;5import org.assertj.core.util.diff.DiffRowGenerator.*;6import org.assertj.core.util.diff.DiffRow.Tag;7import org.assertj.core.util.diff.DiffRowGenerator.*;8import org.assertj.core.util.diff.DiffRow.Tag;9import org.assertj.core.util.diff.DiffRowGenerator.*;10import org.assertj.core.util.diff.DiffRow.Tag;11import org.assertj.core.util.diff.DiffRowGenerator.*;12import org.assertj.core.util.diff.DiffRow.Tag;13import org.assertj.core.util.diff.DiffRowGenerator.*;14import org.assertj.core.util.diff.DiffRow.Tag;15import org.assertj.core.util.diff.DiffRowGenerator.*;16import org.assertj.core.util.diff.DiffRow.Tag;17import org.assertj.core.util.diff.DiffRowGenerator.*;18import org.assertj.core.util.diff.DiffRow.Tag;19import org.assertj.core.util.diff.DiffRowGenerator.*;20import org.assertj.core.util.diff.DiffRow.Tag

Snake

Using AI Code Generation

1import org.assertj.core.util.diff.myers.*;2public class DiffExample {3   public static void main(String[] args) {4      String str1 = "ABC";5      String str2 = "ABD";6      Snake snake = new Snake(str1, str2);7      snake.diff();8      snake.printDiff();9   }10}11Recommended Posts: Java | String substring() with example12Java | String replace() with example13Java | String replaceFirst() with example14Java | String toLowerCase() with example15Java | String toUpperCase() with example16Java | String trim() with example17Java | String valueOf() with example18Java | String intern() with example19Java | String hashCode() with example20Java | String getBytes() with example21Java | String equals() with example22Java | String join() with example23Java | String split() with example24Java | String charAt() with example25Java | String concat() with example26Java | String contains() with example27Java | String format() with example28Java | String length() with example29Java | String isEmpty() with example30Java | String startsWith() with example31Java | String endsWith() with example32Java | String compareTo() with example33Java | String compareToIgnoreCase() with example34Java | String copyValueOf() with example35Java | String matches() with example36Java | String lastIndexOf() with example37Java | String indexOf() with example38Java | String substring() with example39Java | String replace() with example40Java | String replaceFirst() with example41Java | String toLowerCase() with example42Java | String toUpperCase() with example43Java | String trim() with example44Java | String valueOf() with example45Java | String intern() with example46Java | String hashCode() with example47Java | String getBytes() with example48Java | String equals() with example49Java | String join() with example50Java | String split() with example51Java | String charAt() with example52Java | String concat() with example53Java | String contains() with example54Java | String format() with example55Java | String length() with example

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