com.github.difflib

Class UnifiedDiffUtils

java.lang.Object

com.github.difflib.UnifiedDiffUtils

public final class UnifiedDiffUtils
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.String	NULL_FILE_INDICATOR
private static java.util.regex.Pattern	UNIFIED_DIFF_CHUNK_REGEXP

Constructor Summary

Constructors

Modifier	Constructor and Description
private	UnifiedDiffUtils()

Method Summary

Modifier and Type	Method and Description
static java.util.List<java.lang.String>	generateUnifiedDiff(java.lang.String originalFileName, java.lang.String revisedFileName, java.util.List<java.lang.String> originalLines, Patch<java.lang.String> patch, int contextSize) generateUnifiedDiff takes a Patch and some other arguments, returning the Unified Diff format text representing the Patch.
private static java.util.List<java.lang.String>	getDeltaText(AbstractDelta<java.lang.String> delta) getDeltaText returns the lines to be added to the Unified Diff text from the Delta parameter.
static Patch<java.lang.String>	parseUnifiedDiff(java.util.List<java.lang.String> diff) Parse the given text in unified format and creates the list of deltas for it.
private static java.util.List<java.lang.String>	processDeltas(java.util.List<java.lang.String> origLines, java.util.List<AbstractDelta<java.lang.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.
private static void	processLinesInPrevChunk(java.util.List<java.lang.String[]> rawChunk, Patch<java.lang.String> patch, int old_ln, int new_ln)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

UNIFIED_DIFF_CHUNK_REGEXP

private static final java.util.regex.Pattern UNIFIED_DIFF_CHUNK_REGEXP

NULL_FILE_INDICATOR

private static final java.lang.String NULL_FILE_INDICATOR

See Also:

Constant Field Values

Constructor Detail

UnifiedDiffUtils

private UnifiedDiffUtils()

Method Detail

parseUnifiedDiff

public static Patch<java.lang.String> parseUnifiedDiff(java.util.List<java.lang.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(java.util.List<java.lang.String[]> rawChunk,
                                            Patch<java.lang.String> patch,
                                            int old_ln,
                                            int new_ln)

generateUnifiedDiff

public static java.util.List<java.lang.String> generateUnifiedDiff(java.lang.String originalFileName,
                                                                   java.lang.String revisedFileName,
                                                                   java.util.List<java.lang.String> originalLines,
                                                                   Patch<java.lang.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 java.util.List<java.lang.String> processDeltas(java.util.List<java.lang.String> origLines,
                                                              java.util.List<AbstractDelta<java.lang.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 java.util.List<java.lang.String> getDeltaText(AbstractDelta<java.lang.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.