Class UnifiedDiffUtils

java.lang.Object
com.github.difflib.UnifiedDiffUtils

public final class UnifiedDiffUtils extends Object
  • Field Details

    • UNIFIED_DIFF_CHUNK_REGEXP

      private static final Pattern UNIFIED_DIFF_CHUNK_REGEXP
    • NULL_FILE_INDICATOR

      private static final String NULL_FILE_INDICATOR
      See Also:
  • Constructor Details

    • UnifiedDiffUtils

      private UnifiedDiffUtils()
  • Method Details

    • parseUnifiedDiff

      public static Patch<String> parseUnifiedDiff(List<String> diff)
      Parse the given text in unified format and creates the list of deltas for it.
      Parameters:
      diff - the text in unified format
      Returns:
      the patch with deltas.
    • processLinesInPrevChunk

      private static void processLinesInPrevChunk(List<String[]> rawChunk, Patch<String> patch, int old_ln, int new_ln)
    • generateUnifiedDiff

      public static List<String> generateUnifiedDiff(String originalFileName, String revisedFileName, List<String> originalLines, Patch<String> patch, int contextSize)
      generateUnifiedDiff takes a Patch and some other arguments, returning the Unified Diff format text representing the Patch. Author: Bill James (tankerbay@gmail.com).
      Parameters:
      originalFileName - - Filename of the original (unrevised file)
      revisedFileName - - Filename of the revised file
      originalLines - - Lines of the original file
      patch - - Patch created by the diff() function
      contextSize - - number of lines of context output around each difference in the file.
      Returns:
      List of strings representing the Unified Diff representation of the Patch argument.
    • processDeltas

      private static List<String> processDeltas(List<String> origLines, List<AbstractDelta<String>> deltas, int contextSize, boolean newFile)
      processDeltas takes a list of Deltas and outputs them together in a single block of Unified-Diff-format text. Author: Bill James (tankerbay@gmail.com).
      Parameters:
      origLines - - the lines of the original file
      deltas - - the Deltas to be output as a single block
      contextSize - - the number of lines of context to place around block
      Returns:
    • getDeltaText

      private static List<String> getDeltaText(AbstractDelta<String> delta)
      getDeltaText returns the lines to be added to the Unified Diff text from the Delta parameter. Author: Bill James (tankerbay@gmail.com).
      Parameters:
      delta - - the Delta to output
      Returns:
      list of String lines of code.