Example usage for java.lang String codePointAt

Introduction

In this page you can find the example usage for java.lang String codePointAt.

Prototype

public int codePointAt(int index) 

Source Link

Document

Returns the character (Unicode code point) at the specified index.

Usage

From source file:brooklyn.util.os.Os.java

/**
 * Checks whether a file system path is absolute in a platform neutral way.
 * <p>/*www  .j a v a 2  s  .  co  m*/
 * As a consequence of the platform neutrality some edge cases are
 * not handled correctly:
 * <ul>
 *  <li>On Windows relative paths starting with slash (either forward or backward) or ~ are treated as absolute.
 *  <li>On UNIX relative paths starting with X:/ are treated as absolute.
 * </ul>
 *
 * @param path A string representing a file system path.
 * @return whether the path is absolute under the above constraints.
 */
public static boolean isAbsolutish(String path) {
    return path.codePointAt(0) == SEPARATOR_UNIX || path.equals("~") || path.startsWith("~" + SEPARATOR_UNIX)
            || path.length() >= 3 && path.codePointAt(1) == ':' && isSeparator(path.codePointAt(2));
}

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From source file:jp.furplag.util.commons.StringUtils.java

/**
 * normalize a String with Japanese Kana Convert.
 *
 * <pre>/*from  w  ww .j a v  a 2  s .c  o  m*/
 * StringUtils.normalizeKana(null, {@code true}/{@code false}) = null
 * StringUtils.normalizeKana(null, true) = ""
 * StringUtils.normalizeKana("abc123???", true) = "abcdef123456"
 * StringUtils.normalize("abc123???", false) = "abcdef123456????????"
 * </pre>
 *
 * @param str the string, may be null.
 * @param hiraToKata {@code true} then Hiragana to Katakana.
 * @return Normalize a String with Japanese Kana Convert.
 */
public static String normalizeKana(final String str, final boolean hiraToKata) {
    if (isSimilarToBlank(str))
        return null;
    String temporary = normalize(str);
    Pattern pattern = Pattern.compile(hiraToKata ? "[\u3040-\u309F]" : "[\u30A0-\u30FF]");
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < temporary.length(); i++) {
        String s = temporary.substring(i, i + 1);
        sb.append(pattern.matcher(s).matches()
                ? new String(new int[] { s.codePointAt(0) + (hiraToKata ? 96 : -96) }, 0, 1)
                : s);
    }

    return sb.toString();
}

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From source file:org.apache.any23.extractor.calendar.BaseCalendarExtractor.java

private static String camelCase(String name, boolean forProperty) {
    String[] nameComponents = name.toLowerCase(Locale.ENGLISH).split("-");
    StringBuilder sb = new StringBuilder(name.length());
    int i = 0;/*from   ww w  .  j  av a2s  . co  m*/
    if (forProperty) {
        sb.append(nameComponents[i++]);
    }
    for (int len = nameComponents.length; i < len; i++) {
        String n = nameComponents[i];
        if (!n.isEmpty()) {
            int ind = Character.charCount(n.codePointAt(0));
            sb.append(n.substring(0, ind).toUpperCase(Locale.ENGLISH)).append(n.substring(ind));
        }
    }
    return sb.toString();
}

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From source file:password.pwm.util.java.StringUtil.java

public static int[] toCodePointArray(final String str) {
    if (str != null) {
        final int len = str.length();
        final int[] acp = new int[str.codePointCount(0, len)];

        for (int i = 0, j = 0; i < len; i = str.offsetByCodePoints(i, 1)) {
            acp[j++] = str.codePointAt(i);
        }//w w w  .j a  v  a  2 s . c  o m

        return acp;
    }

    return new int[0];
}

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From source file:org.web4thejob.studio.controller.impl.PropertyEditorController.java

private static boolean isEvent(String name) {
    return name.startsWith("on") && name.length() > 2 && name.codePointAt(2) >= "A".codePointAt(0);
}

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From source file:org.opendatakit.common.utils.WebUtils.java

/**
 * Return a string with utf-8 characters replaced with backslash-uxxxx codes.
 * Useful for debugging.//from   w  ww  .j a  va2 s . c  o m
 *
 * @param str
 * @return printable rendition of non-ASCII utf-8 characters.
 */
public static final String escapeUTF8String(String str) {
    StringBuilder b = new StringBuilder();
    for (int i = 0; i < str.length(); ++i) {
        int code = str.codePointAt(i);
        if (code < 127) {
            b.append(str.charAt(i));
        } else {
            String val = Integer.toHexString(code);
            while (val.length() < 4) {
                val = '0' + val;
            }
            b.append("\\u" + val);
        }
    }
    return b.toString();
}

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From source file:Main.java

/**
 * This is useful since vCard 3.0 often requires the ("X-") properties and groups
 * should contain only alphabets, digits, and hyphen.
 * //from w  w  w  .  j av a2s  .c  o  m
 * Note: It is already known some devices (wrongly) outputs properties with characters
 *       which should not be in the field. One example is "X-GOOGLE TALK". We accept
 *       such kind of input but must never output it unless the target is very specific
 *       to the device which is able to parse the malformed input. 
 */
public static boolean containsOnlyAlphaDigitHyphen(String str) {
    if (TextUtils.isEmpty(str)) {
        return true;
    }

    final int lowerAlphabetFirst = 0x41; // included ('A')
    final int lowerAlphabetLast = 0x5b; // not included ('[')
    final int upperAlphabetFirst = 0x61; // included ('a')
    final int upperAlphabetLast = 0x7b; // included ('{')
    final int digitFirst = 0x30; // included ('0')
    final int digitLast = 0x39; // included ('9')
    final int hyphen = '-';
    final int length = str.length();
    for (int i = 0; i < length; i = str.offsetByCodePoints(i, 1)) {
        int codepoint = str.codePointAt(i);
        if (!((lowerAlphabetFirst <= codepoint && codepoint < lowerAlphabetLast)
                || (upperAlphabetFirst <= codepoint && codepoint < upperAlphabetLast)
                || (digitFirst <= codepoint && codepoint < digitLast) || (codepoint == hyphen))) {
            return false;
        }
    }
    return true;
}

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From source file:net.metanotion.json.JsonPath.java

private static int read(final String cs, final int[] position) {
    try {/* w  ww  .j a va2s.  c  om*/
        final int c = cs.codePointAt(position[0]);
        position[0]++;
        return c;
    } catch (IndexOutOfBoundsException ioobe) {
        return -1;
    }
}

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From source file:Main.java

public static String $$insertWordBreaks(String value, int maxCharsBetweenWordBreaks) {

    StringBuilder result = new StringBuilder();

    // These variables keep track of important state while looping through the string below.
    boolean isInTag = false; // whether we're inside an HTML tag
    boolean isMaybeInEntity = false; // whether we might be inside an HTML entity
    int numCharsWithoutBreak = 0; // number of characters since the last word break

    for (int codePoint, i = 0; i < value.length(); i += Character.charCount(codePoint)) {
        codePoint = value.codePointAt(i);

        // If hit maxCharsBetweenWordBreaks, and next char is not a space, then add <wbr>.
        if (numCharsWithoutBreak >= maxCharsBetweenWordBreaks && codePoint != ' ') {
            result.append("<wbr>");
            numCharsWithoutBreak = 0;/*from   www  . j  av a2  s .c o  m*/
        }

        if (isInTag) {
            // If inside an HTML tag and we see '>', it's the end of the tag.
            if (codePoint == '>') {
                isInTag = false;
            }

        } else if (isMaybeInEntity) {
            switch (codePoint) {
            // If maybe inside an entity and we see ';', it's the end of the entity. The entity
            // that just ended counts as one char, so increment numCharsWithoutBreak.
            case ';':
                isMaybeInEntity = false;
                ++numCharsWithoutBreak;
                break;
            // If maybe inside an entity and we see '<', we weren't actually in an entity. But
            // now we're inside an HTML tag.
            case '<':
                isMaybeInEntity = false;
                isInTag = true;
                break;
            // If maybe inside an entity and we see ' ', we weren't actually in an entity. Just
            // correct the state and reset the numCharsWithoutBreak since we just saw a space.
            case ' ':
                isMaybeInEntity = false;
                numCharsWithoutBreak = 0;
                break;
            }

        } else { // !isInTag && !isInEntity
            switch (codePoint) {
            // When not within a tag or an entity and we see '<', we're now inside an HTML tag.
            case '<':
                isInTag = true;
                break;
            // When not within a tag or an entity and we see '&', we might be inside an entity.
            case '&':
                isMaybeInEntity = true;
                break;
            // When we see a space, reset the numCharsWithoutBreak count.
            case ' ':
                numCharsWithoutBreak = 0;
                break;
            // When we see a non-space, increment the numCharsWithoutBreak.
            default:
                ++numCharsWithoutBreak;
                break;
            }
        }

        // In addition to adding <wbr>s, we still have to add the original characters.
        result.appendCodePoint(codePoint);
    }

    return result.toString();
}

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From source file:com.careerly.utils.TextUtils.java

/**
 * ?/*w  w  w .j av a 2s . co m*/
 *
 * @param text
 * @return
 */
public static String removeDoubleByte(String text) {

    if (StringUtils.isBlank(text)) {
        return StringUtils.EMPTY;
    }

    StringBuilder stringBuilder = new StringBuilder();
    for (int i = 0; i < text.codePointCount(0, text.length()); i++) {
        char[] chars = Character.toChars(text.codePointAt(i));
        if (chars.length == 1) {
            stringBuilder.append(String.valueOf(chars));
        }
    }
    return stringBuilder.toString();
}

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