org.eclipse.jgit.ignore.internal

Class Strings

java.lang.Object

org.eclipse.jgit.ignore.internal.Strings

public class Strings
extends java.lang.Object

Various String related utility methods, written mostly to avoid generation of new String objects (e.g. via splitting Strings etc).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	Strings.PatternState

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.String	DL
(package private) static java.util.List<java.lang.String>	JAVA_CHAR_CLASSES
(package private) static java.util.List<java.lang.String>	POSIX_CHAR_CLASSES
(package private) static java.util.regex.Pattern	UNSUPPORTED

Constructor Summary

Constructors

Constructor and Description
Strings()

Method Summary

Modifier and Type	Method and Description
private static java.lang.String	checkPosixCharClass(char[] buffer)
(package private) static Strings.PatternState	checkWildCards(java.lang.String pattern)
(package private) static java.util.regex.Pattern	convertGlob(java.lang.String pattern) Conversion from glob to Java regex following two sources: http://man7.org/linux/man-pages/man7/glob.7.html org.eclipse.jgit.fnmatch.FileNameMatcher.java Seems that there are various ways to define what "glob" can be.
(package private) static int	count(java.lang.String s, char c, boolean ignoreFirstLast)
(package private) static java.lang.String	deleteBackslash(java.lang.String s)
private static boolean	escapedByBackslash(char nextChar)
(package private) static char	getPathSeparator(java.lang.Character pathSeparator)
private static boolean	isComplexWildcard(java.lang.String pattern)
static boolean	isDirectoryPattern(java.lang.String pattern) Check if pattern is a directory pattern ending with a path separator
(package private) static boolean	isWildCard(java.lang.String pattern)
private static char	lookAhead(java.lang.String pattern, int i)
private static char	lookBehind(java.lang.StringBuilder buffer)
private static void	reset(char[] buffer)
private static void	setNext(char[] buffer, char c)
static java.util.List<java.lang.String>	split(java.lang.String pattern, char slash) Splits given string to substrings by given separator
static java.lang.String	stripTrailing(java.lang.String pattern, char c) Strip trailing characters
static java.lang.String	stripTrailingWhitespace(java.lang.String pattern) Strip trailing whitespace characters

Methods inherited from class java.lang.Object

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

Field Detail

POSIX_CHAR_CLASSES

static final java.util.List<java.lang.String> POSIX_CHAR_CLASSES

DL

private static final java.lang.String DL

See Also:

Constant Field Values

JAVA_CHAR_CLASSES

static final java.util.List<java.lang.String> JAVA_CHAR_CLASSES

UNSUPPORTED

static final java.util.regex.Pattern UNSUPPORTED

Constructor Detail

Strings

public Strings()

Method Detail

getPathSeparator

static char getPathSeparator(java.lang.Character pathSeparator)

stripTrailing

public static java.lang.String stripTrailing(java.lang.String pattern,
                                             char c)

Strip trailing characters

Parameters:

pattern - non null

c - character to remove

Returns:

new string with all trailing characters removed

stripTrailingWhitespace

public static java.lang.String stripTrailingWhitespace(java.lang.String pattern)

Strip trailing whitespace characters

Parameters:

pattern - non null

Returns:

new string with all trailing whitespace removed

isDirectoryPattern

public static boolean isDirectoryPattern(java.lang.String pattern)

Check if pattern is a directory pattern ending with a path separator

Parameters:

pattern - non null

Returns:

true if the last character, which is not whitespace, is a path separator

count

static int count(java.lang.String s,
                 char c,
                 boolean ignoreFirstLast)

split

public static java.util.List<java.lang.String> split(java.lang.String pattern,
                                                     char slash)

Splits given string to substrings by given separator

Parameters:

pattern - non null

slash - separator char

Returns:

list of substrings

isWildCard

static boolean isWildCard(java.lang.String pattern)

isComplexWildcard

private static boolean isComplexWildcard(java.lang.String pattern)

escapedByBackslash

private static boolean escapedByBackslash(char nextChar)

checkWildCards

static Strings.PatternState checkWildCards(java.lang.String pattern)

convertGlob

static java.util.regex.Pattern convertGlob(java.lang.String pattern)
                                    throws InvalidPatternException

Conversion from glob to Java regex following two sources:

http://man7.org/linux/man-pages/man7/glob.7.html org.eclipse.jgit.fnmatch.FileNameMatcher.java Seems that there are various ways to define what "glob" can be.

Parameters:

pattern - non null pattern

Returns:

Java regex pattern corresponding to given glob pattern

Throws:

InvalidPatternException

lookBehind

private static char lookBehind(java.lang.StringBuilder buffer)

Parameters:

buffer -

Returns:

zero of the buffer is empty, otherwise the last character from buffer

lookAhead

private static char lookAhead(java.lang.String pattern,
                              int i)

Parameters:

pattern -

i - current pointer in the pattern

Returns:

zero of the index is out of range, otherwise the next character from given position

setNext

private static void setNext(char[] buffer,
                            char c)

reset

private static void reset(char[] buffer)

checkPosixCharClass

private static java.lang.String checkPosixCharClass(char[] buffer)

deleteBackslash

static java.lang.String deleteBackslash(java.lang.String s)