org.apache.groovy.parser.antlr4.util

Class StringUtils

java.lang.Object

org.apache.groovy.parser.antlr4.util.StringUtils

public class StringUtils
extends java.lang.Object

Utilities for handling strings

Author:

Daniel.Sun Created on 2016/08/20

Field Summary

Fields

Modifier and Type	Field and Description
static int	DOLLAR_SLASHY
static int	NONE_SLASHY
static int	SLASHY

Constructor Summary

Constructors

Constructor and Description
StringUtils()

Method Summary

Modifier and Type	Method and Description
static long	countChar(java.lang.String text, char c)
static boolean	isEmpty(java.lang.CharSequence cs) Copied from Apache commons-lang3-3.6
static java.lang.String	removeCR(java.lang.String text)
static java.lang.String	replace(java.lang.String text, java.lang.String searchString, java.lang.String replacement) The modified implementation is based on StringUtils#replace(String text, String searchString, String replacement, int max), Apache commons-lang3-3.6
static java.lang.String	replaceEscapes(java.lang.String text, int slashyType)
static java.lang.String	replaceHexEscapes(java.lang.String text)
static java.lang.String	replaceOctalEscapes(java.lang.String text)
static java.lang.String	replaceStandardEscapes(java.lang.String text)
static java.lang.String	trimQuotations(java.lang.String text, int quotationLength)

Methods inherited from class java.lang.Object

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

Field Detail

NONE_SLASHY

public static final int NONE_SLASHY

See Also:

Constant Field Values

SLASHY

public static final int SLASHY

See Also:

Constant Field Values

DOLLAR_SLASHY

public static final int DOLLAR_SLASHY

See Also:

Constant Field Values

Constructor Detail

StringUtils

public StringUtils()

Method Detail

replaceHexEscapes

public static java.lang.String replaceHexEscapes(java.lang.String text)

replaceOctalEscapes

public static java.lang.String replaceOctalEscapes(java.lang.String text)

replaceStandardEscapes

public static java.lang.String replaceStandardEscapes(java.lang.String text)

replaceEscapes

public static java.lang.String replaceEscapes(java.lang.String text,
                                              int slashyType)

removeCR

public static java.lang.String removeCR(java.lang.String text)

countChar

public static long countChar(java.lang.String text,
                             char c)

trimQuotations

public static java.lang.String trimQuotations(java.lang.String text,
                                              int quotationLength)

replace

public static java.lang.String replace(java.lang.String text,
                                       java.lang.String searchString,
                                       java.lang.String replacement)

The modified implementation is based on StringUtils#replace(String text, String searchString, String replacement, int max), Apache commons-lang3-3.6

Replaces all occurrences of a String within another String.

A null reference passed to this method is a no-op.

 StringUtils.replace(null, *, *)        = null
 StringUtils.replace("", *, *)          = ""
 StringUtils.replace("any", null, *)    = "any"
 StringUtils.replace("any", *, null)    = "any"
 StringUtils.replace("any", "", *)      = "any"
 StringUtils.replace("aba", "a", null)  = "aba"
 StringUtils.replace("aba", "a", "")    = "b"
 StringUtils.replace("aba", "a", "z")   = "zbz"
 

Parameters:

text - text to search and replace in, may be null

searchString - the String to search for, may be null

replacement - the String to replace it with, may be null

Returns:

the text with any replacements processed, null if null String input

isEmpty

public static boolean isEmpty(java.lang.CharSequence cs)

Copied from Apache commons-lang3-3.6

Checks if a CharSequence is empty ("") or null.

 StringUtils.isEmpty(null)      = true
 StringUtils.isEmpty("")        = true
 StringUtils.isEmpty(" ")       = false
 StringUtils.isEmpty("bob")     = false
 StringUtils.isEmpty("  bob  ") = false
 

NOTE: This method changed in Lang version 2.0. It no longer trims the CharSequence. That functionality is available in isBlank().

Parameters:

cs - the CharSequence to check, may be null

Returns:

true if the CharSequence is empty or null

Since:

3.0 Changed signature from isEmpty(String) to isEmpty(CharSequence)