Example usage for java.lang Character isWhitespace

Introduction

In this page you can find the example usage for java.lang Character isWhitespace.

Prototype

public static boolean isWhitespace(int codePoint)

Source Link

Document

Determines if the specified character (Unicode code point) is white space according to Java.

Usage

From source file:Main.java

/**
 * Remove all duplicate whitespace characters and line terminators are replaced with a single space.
 *
 * @param s a not null String/*from  ww  w  . j  a  v a 2 s  .c om*/
 * @return a string with unique whitespace.
 * @since 1.5.7
 */
public static String removeDuplicateWhitespace(String s) {
    StringBuilder result = new StringBuilder();
    int length = s.length();
    boolean isPreviousWhiteSpace = false;
    for (int i = 0; i < length; i++) {
        char c = s.charAt(i);
        boolean thisCharWhiteSpace = Character.isWhitespace(c);
        if (!(isPreviousWhiteSpace && thisCharWhiteSpace)) {
            result.append(c);
        }
        isPreviousWhiteSpace = thisCharWhiteSpace;
    }
    return result.toString();
}

From source file:Main.java

public static boolean containsOnlyWhiteSpaces(final Collection<String> values) {
    if (values == null) {
        return true;
    }//from  w  w w  . j av a 2  s  . c o  m
    for (final String str : values) {
        if (TextUtils.isEmpty(str)) {
            continue;
        }
        final int length = str.length();
        for (int i = 0; i < length; i = str.offsetByCodePoints(i, 1)) {
            if (!Character.isWhitespace(str.codePointAt(i))) {
                return false;
            }
        }
    }
    return true;
}

From source file:Main.java

/**
 * @since 4.4/*from   w w w .  j a  v  a  2s.  com*/
 */
public static boolean containsBlanks(final CharSequence s) {
    if (s == null) {
        return false;
    }
    for (int i = 0; i < s.length(); i++) {
        if (Character.isWhitespace(s.charAt(i))) {
            return true;
        }
    }
    return false;
}

From source file:Main.java

public static byte[] fromHex(String s) {
    if (s != null) {
        try {/*from   www . j  a  v  a2s .co m*/
            StringBuilder sb = new StringBuilder(s.length());
            for (int i = 0; i < s.length(); i++) {
                char ch = s.charAt(i);
                if (!Character.isWhitespace(ch)) {
                    sb.append(ch);
                }
            }
            s = sb.toString();
            int len = s.length();
            byte[] data = new byte[len / 2];
            for (int i = 0; i < len; i += 2) {
                int hi = (Character.digit(s.charAt(i), 16) << 4);
                int low = Character.digit(s.charAt(i + 1), 16);
                if (hi >= 256 || low < 0 || low >= 16) {
                    return null;
                }
                data[i / 2] = (byte) (hi | low);
            }
            return data;
        } catch (Exception ignored) {
        }
    }
    return null;
}

From source file:codes.thischwa.c5c.util.StringUtils.java

public static final boolean isNullOrEmptyOrBlank(final String str) {
    if (_isNullOrEmpty(str))
        return true;
    for (int i = 0; i < str.length(); i++) {
        if (!Character.isWhitespace(str.charAt(i)))
            return false;
    }/*from   w  ww  .  j a  v a  2s  .c  o  m*/
    return true;
}

From source file:Main.java

public static boolean isEmptyOrWhitespaceOnly(String str) {
    if (TextUtils.isEmpty(str)) {
        return true;
    }//from   w  w w  .  j  a  v a2 s  . c o  m
    for (int i = 0; i < str.length(); i++) {
        if (!Character.isWhitespace(str.charAt(i))) {
            return false;
        }
    }
    return true;
}

From source file:Main.java

/**
 * Returns true if the parameter is null or contains only whitespace
 *///from  ww  w . j ava2 s  . c  o m
public static boolean isBlank(final CharSequence s) {
    if (s == null) {
        return true;
    }
    for (int i = 0; i < s.length(); i++) {
        if (!Character.isWhitespace(s.charAt(i))) {
            return false;
        }
    }
    return true;
}

From source file:Main.java

/**
 * <p>/*from  w ww.  j  a v  a2  s .  c  o  m*/
 * Strip any of a supplied String from the end of a String.
 * </p>
 * <p/>
 * <p>
 * If the strip String is <code>null</code>, whitespace is stripped.
 * </p>
 *
 * @param str the String to remove characters from
 * @param strip the String to remove
 * @return the stripped String
 */
public static String stripEnd(String str, String strip) {
    if (str == null) {
        return null;
    }
    int end = str.length();

    if (strip == null) {
        while ((end != 0) && Character.isWhitespace(str.charAt(end - 1))) {
            end--;
        }
    } else {
        while ((end != 0) && (strip.indexOf(str.charAt(end - 1)) != -1)) {
            end--;
        }
    }
    return str.substring(0, end);
}

From source file:com.google.flightmap.parsing.util.StringUtils.java

/**
 * Returns mixed-case version of {@code text}.
 * <p>//from  ww  w . j a v a2s.  c o  m
 * The first letter of each word is capitalized, the rest are lower case.
 * Words are delimited by spaces and special characters (except single-quote).
 * "REID-HILLVIEW" becomes "Reid-Hillview".
 * 
 * @return mixed-case version of {@code text} with each word capitalized.
 */
public static String capitalize(final String text) {
    final StringBuilder sb = new StringBuilder(WordUtils.capitalize(text.toLowerCase()));
    boolean makeNextLetterUpper = false;
    for (int i = 0; i < sb.length(); ++i) {
        final char cur = sb.charAt(i);
        if (Character.isWhitespace(cur)) {
            continue; // Skip whitespace
        } else if (Character.isLetterOrDigit(cur)) {
            if (makeNextLetterUpper) {
                sb.setCharAt(i, Character.toUpperCase(cur));
                makeNextLetterUpper = false;
            } else {
                continue; // Skip character if no change is neded
            }
        } else { // Not whitespace, letter or digit:  we assume punctuation.
            makeNextLetterUpper = cur != '\''; // Ignore single quote (John'S, Susie'S, ...)
        }
    }
    return sb.toString();
}

From source file:Main.java

/**
 * <p>//from   w w  w . j  av  a 2 s.  c o m
 * Strip any of a supplied String from the start of a String.
 * </p>
 * <p/>
 * <p>
 * If the strip String is <code>null</code>, whitespace is stripped.
 * </p>
 *
 * @param str the String to remove characters from
 * @param strip the String to remove
 * @return the stripped String
 */
public static String stripStart(String str, String strip) {
    if (str == null) {
        return null;
    }

    int start = 0;

    int sz = str.length();

    if (strip == null) {
        while ((start != sz) && Character.isWhitespace(str.charAt(start))) {
            start++;
        }
    } else {
        while ((start != sz) && (strip.indexOf(str.charAt(start)) != -1)) {
            start++;
        }
    }
    return str.substring(start);
}