Examples of java.text.CharacterIterator.first()

java.text.CharacterIterator.first()
Sets the position to getBeginIndex() and returns the character at that position. @return the first character in the text, or DONE if the text is empty @see #getBeginIndex()

            uri = uri.substring(1);
        }


        StringBuffer sb = new StringBuffer();
        CharacterIterator iter = new StringCharacterIterator(uri);
        for (char c = iter.first(); c != CharacterIterator.DONE;
             c = iter.next()) {
            if (c == '%') {
                char c1 = iter.next();
                if (c1 != CharacterIterator.DONE) {
                    int i1 = Character.digit(c1, 16);

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     */
    public String encode( String publicName ) {
        if (publicName == null) return null;
        StringBuilder sb = new StringBuilder();
        CharacterIterator iter = new StringCharacterIterator(publicName);
        for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) {
            char mapped = c;
            if (c == '*') {
                mapped = '\uF02A';
            } else if (c == '/') {
                mapped = '\uF02F';

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     */
    public String decode( String jcrNodeName ) {
        if (jcrNodeName == null) return null;
        StringBuilder sb = new StringBuilder();
        CharacterIterator iter = new StringCharacterIterator(jcrNodeName);
        for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) {
            char mapped = c;
            if (c == '\uF02A') {
                mapped = '*';
            } else if (c == '\uF02F') {
                mapped = '/';

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        String[] parts = classname.split("[\\.]");
        if (parts.length == 0) return false;
        for (String part : parts) {
            CharacterIterator iter = new StringCharacterIterator(part);
            // Check first character (there should at least be one character for each part) ...
            char c = iter.first();
            if (c == CharacterIterator.DONE) return false;
            if (!Character.isJavaIdentifierStart(c) && !Character.isIdentifierIgnorable(c)) return false;
            c = iter.next();
            // Check the remaining characters, if there are any ...
            while (c != CharacterIterator.DONE) {

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        if (text == null) return null;
        if (text.length() == 0) return text;
        final BitSet safeChars = isSlashEncoded() ? RFC2396_UNRESERVED_CHARACTERS : RFC2396_UNRESERVED_WITH_SLASH_CHARACTERS;
        final StringBuilder result = new StringBuilder();
        final CharacterIterator iter = new StringCharacterIterator(text);
        for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) {
            if (safeChars.get(c)) {
                // Safe character, so just pass through ...
                result.append(c);
            } else {
                // The character is not a safe character, and must be escaped ...

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    public String decode( String encodedText ) {
        if (encodedText == null) return null;
        if (encodedText.length() == 0) return encodedText;
        final StringBuilder result = new StringBuilder();
        final CharacterIterator iter = new StringCharacterIterator(encodedText);
        for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) {
            if (c == ESCAPE_CHARACTER) {
                boolean foundEscapedCharacter = false;
                // Found the first character in a potential escape sequence, so grab the next two characters ...
                char hexChar1 = iter.next();
                char hexChar2 = hexChar1 != CharacterIterator.DONE ? iter.next() : CharacterIterator.DONE;

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            return encodedText;
        }
        StringBuilder sb = new StringBuilder();
        char[] digits = new char[4];
        CharacterIterator iter = new StringCharacterIterator(encodedText);
        for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) {
            if (c == '_') {
                // Read the next character, if there is one ...
                char next = iter.next();
                if (next == CharacterIterator.DONE) {
                    sb.append(c);

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        if (text == null) return null;
        if (text.length() == 0) return text;
        StringBuilder sb = new StringBuilder();
        String hex = null;
        CharacterIterator iter = new StringCharacterIterator(text);
        for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) {
            if (c == '_') {
                // Read the next character (if there is one) ...
                char next = iter.next();
                if (next == CharacterIterator.DONE) {
                    sb.append(c);

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        if (uri.indexOf('%') == -1) {
            return uri;
        }
        ByteArrayOutputStream sb = new ByteArrayOutputStream(uri.length());
        CharacterIterator iter = new StringCharacterIterator(uri);
        for (char c = iter.first(); c != CharacterIterator.DONE;
             c = iter.next()) {
            if (c == '%') {
                char c1 = iter.next();
                if (c1 != CharacterIterator.DONE) {
                    int i1 = Character.digit(c1, 16);

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     * @return The offset of the beginning of the text.
     */
    public int first() {
        CharacterIterator t = getText();


        t.first();
        return t.getIndex();
    }


    /**
     * Sets the current iteration position to the end of the text.

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