Java Utililty Methods String Whitespace Normalize

List of utility methods to do String Whitespace Normalize

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Description

The list of methods to do String Whitespace Normalize are organized into topic(s).

Method

StringnormaliseWhitespace(String string)
normalise Whitespace 
StringBuilder sb = new StringBuilder(string.length());
boolean lastWasWhite = false;
boolean modified = false;
int l = string.length();
for (int i = 0; i < l; i++) {
    int c = string.codePointAt(i);
    if (Character.isWhitespace(c)) {
        if (lastWasWhite) {
...
StringnormaliseWhitespace(String string)
normalise Whitespace 
return string == null ? "" : string.replaceAll("\\s+", " ");
StringnormaliseWhitespace(String string)
Normalise the whitespace within this string; multiple spaces collapse to a single, and all whitespace characters (e.g. 
StringBuilder sb = new StringBuilder(string.length());
appendNormalisedWhitespace(sb, string, false);
return sb.toString();
StringnormalizeIndentationFromWhitespace(String str, int tabSize, boolean insertSpaces)
normalize Indentation From Whitespace 
int spacesCnt = 0;
for (int i = 0; i < str.length(); i++) {
    if (str.charAt(i) == '\t') {
        spacesCnt += tabSize;
    } else {
        spacesCnt++;
StringBuilder result = new StringBuilder();
if (!insertSpaces) {
    long tabsCnt = Math.round(Math.floor(spacesCnt / tabSize));
    spacesCnt = spacesCnt % tabSize;
    for (int i = 0; i < tabsCnt; i++) {
        result.append('\t');
for (int i = 0; i < spacesCnt; i++) {
    result.append(' ');
return result.toString();
StringnormalizeWhitespace(final String str)
Substitutes all whitespace with " " 
if (str != null) {
    return str.replaceAll("\\s+", " ");
return "";
StringnormalizeWhitespace(String dirtyString)
Trim string and convert all multi whitespace regions to a single space. 
if (dirtyString == null) {
    return null;
if (dirtyString.length() < 1) {
    return dirtyString;
StringBuffer buff = new StringBuffer();
int dsl = dirtyString.length();
...
StringnormalizeWhiteSpace(String input)
normalize White Space 
return input.replaceAll("\\s+", " ").replaceAll("([^\\w])\\s+", "$1");
StringnormalizeWhiteSpace(String input)
normalize White Space 
if (input == null) {
    return null;
StringBuffer result = new StringBuffer();
boolean atStart = true;
boolean whitespaceToInsert = false;
for (int i = 0; i < input.length(); i++) {
    char next = input.charAt(i);
...
StringnormalizeWhitespace(String orig)
Replace any string of whitespace characters with a single space, and remove whitespace from the beginning and end of the string. 
return orig.replaceAll("\\s+", " ").trim();
StringnormalizeWhitespace(String s)
Removes all leading and trailing whitespace from a string, and replaces all internal whitespace with a single space character. 
String normalized = "";
if (s != null) {
    s = s.trim();
    boolean prevIsWhitespace = false;
    for (int i = 0; i < s.length(); i++) {
        char c = s.charAt(i);
        boolean thisIsWhitespace = (c <= 0x20);
        if (!(thisIsWhitespace && prevIsWhitespace)) {
...