Class UnifiedDiffText

java.lang.Object

org.eclipse.compare.unifieddiff.internal.UnifiedDiffText

public final class UnifiedDiffText
extends Object

Side-effect free text and style-range helpers used to lay out the unified diff code minings.

Method Summary

Modifier and Type	Method	Description
static int	countLines(String str)	Returns the number of lines of the given string, counting a trailing line delimiter as starting a new (empty) line.
static int	countLines(String str, int end)	Returns the number of lines of the first end characters of the given string, like countLines(String) on that prefix.
static int	mapOffsetToTabExpanded(String originalStr, int offset, int tabWidth)	Maps an offset in originalStr to the corresponding offset in replaceTabWithSpaces(String, int) of the same string.
static List<StyleRange>	mergeStyleRanges(List<StyleRange> backgrounds, List<StyleRange> foregrounds)	Overlays the detailed-diff background ranges onto the syntax coloring ranges.
static String	removeLeadingNewLines(String str)
static String	removeTrailingNewLines(String str)
static String	replaceTabWithSpaces(String str, int tabWidth)	Expands every tab into tabWidth spaces.

Methods inherited from class Object

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

Method Details

countLines

public static int countLines(String str)

Returns the number of lines of the given string, counting a trailing line delimiter as starting a new (empty) line. An empty string is one line.

countLines

public static int countLines(String str,
 int end)

Returns the number of lines of the first end characters of the given string, like countLines(String) on that prefix.

removeTrailingNewLines

public static String removeTrailingNewLines(String str)

removeLeadingNewLines

public static String removeLeadingNewLines(String str)

replaceTabWithSpaces

public static String replaceTabWithSpaces(String str,
 int tabWidth)

Expands every tab into tabWidth spaces. GC#stringExtent does not account for tabs, so widths are always measured on the expanded string.

mapOffsetToTabExpanded

public static int mapOffsetToTabExpanded(String originalStr,
 int offset,
 int tabWidth)

Maps an offset in originalStr to the corresponding offset in replaceTabWithSpaces(String, int) of the same string.

mergeStyleRanges

public static List<StyleRange> mergeStyleRanges(List<StyleRange> backgrounds,
 List<StyleRange> foregrounds)

Overlays the detailed-diff background ranges onto the syntax coloring ranges. Both lists must be sorted by offset and must not overlap within themselves. The returned ranges keep the foreground styling and cover exactly the extent of foregrounds.