Java Utililty Methods String Whitespace Normalize

List of utility methods to do String Whitespace Normalize

  1. HOME
  2. Java
  3. S
  4. String Whitespace Normalize

Description

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

Method

StringnormalizeWhitespace(String source)
INTERNAL: Replaces sequences of one or more ' ', \t, \n, \r by a single space, returning the new string. 
char[] string = source.toCharArray();
int pos = 0;
boolean previousWasWS = false;
for (int ix = 0; ix < string.length; ix++) {
    switch (string[ix]) {
    case ' ':
    case '\t':
    case '\n':
...
StringnormalizeWhiteSpace(String src)
Replace all blocks of white space by a single space character, just used for creating test cases. 
StringBuilder result = new StringBuilder(src.length());
boolean inWhitespaceBlock = false;
for (int i = 0; i < src.length(); i++) {
    char c = src.charAt(i);
    if (Character.isWhitespace(c)) {
        if (!inWhitespaceBlock) {
            result.append(" ");
            inWhitespaceBlock = true;
...
StringnormalizeWhitespace(String text)
Translates multiple whitespace into single space character. 
text = text.replaceAll("(\r\n|\r)", "\n");
text = text.replaceAll("(?:(?![\n])\\s+)", " "); 
text = text.replaceAll("<br>", ""); 
return text;
StringnormalizeWhitespaces(String s)
Replaces all duplicated whitespace characters with single space. 
int length = s.length();
StringBuffer normalized = new StringBuffer(length);
boolean needSpace = false;
for (int index = 0; index < length; index++) {
    char c = s.charAt(index);
    if (Character.isWhitespace(c)) {
        needSpace = true;
    } else {
...
StringnormalizeWhitespaces(String text)
normalize Whitespaces 
return compressWhitespaces(text).trim();