Example usage for java.lang CharSequence charAt

Introduction

In this page you can find the example usage for java.lang CharSequence charAt.

Prototype

char charAt(int index);

Source Link

Document

Returns the char value at the specified index.

Usage

From source file:eu.stratosphere.types.StringValue.java

public static final void writeString(CharSequence cs, DataOutput out) throws IOException {
    if (cs != null) {
        // the length we write is offset by one, because a length of zero indicates a null value
        int lenToWrite = cs.length() + 1;
        if (lenToWrite < 0) {
            throw new IllegalArgumentException("CharSequence is too long.");
        }// ww  w . ja v  a  2 s.c om

        // write the length, variable-length encoded
        while (lenToWrite >= HIGH_BIT) {
            out.write(lenToWrite | HIGH_BIT);
            lenToWrite >>>= 7;
        }
        out.write(lenToWrite);

        // write the char data, variable length encoded
        for (int i = 0; i < cs.length(); i++) {
            int c = cs.charAt(i);

            while (c >= HIGH_BIT) {
                out.write(c | HIGH_BIT);
                c >>>= 7;
            }
            out.write(c);
        }
    } else {
        out.write(0);
    }
}

From source file:org.exist.util.Base64Decoder.java

/**
 * Decode the base 64 string into a byte array (which can subsequently be accessed using getByteArray()
 * @param str the base 64 string/*from  w ww . j a v a2 s  . c  o m*/
 * @throws IllegalArgumentException if the base64 string is incorrectly formatted
 */

public final void translate(CharSequence str) throws IllegalArgumentException {
    if (token == null) // already saw eof marker?
    {
        return;
    }
    final int length = str.length();
    int lengthAtEOF;
    int found_eq = 0;
    for (int i = 0; i < length; i++) {
        final char c = str.charAt(i);
        if (c > 127) {
            throw new IllegalArgumentException("non-ASCII character in Base64 value (at offset " + i + ')');
        }
        byte t = map[c];
        if (t == NUL) {
            throw new IllegalArgumentException(
                    "invalid character '" + c + "' in Base64 value (at offset " + i + ')');
        }
        if (found_eq > 0 && t != EOF && t != SP) {
            throw new IllegalArgumentException("In Base64, an '=' character can appear only at the end");
        }
        if (t == EOF) {
            if (found_eq > 0) {
                found_eq++;
                if (found_eq > 2) {
                    throw new IllegalArgumentException("Base64 value can contain at most two '=' characters");
                }
                token_length = (token_length + 1) % 4;
            } else {
                found_eq = 1;
                lengthAtEOF = token_length;
                eof();
                token_length = (lengthAtEOF + 1) % 4;
            }
        } else if (t != SP) {
            token[token_length++] = t;
            if (token_length == 4) {
                if (found_eq == 0) {
                    decode_token();
                }
                token_length = 0;
            }
        }
    }
    if (token_length != 0) {
        throw new IllegalArgumentException("Base64 input must be a multiple of four characters");
    }
}

From source file:br.msf.commons.util.CharSequenceUtils.java

public static boolean hasAccents(final CharSequence sequence) {
    if (isBlankOrNull(sequence)) {
        return false;
    }// ww  w.  j ava 2 s .  co m
    for (int i = 0; i < sequence.length(); i++) {
        char c = sequence.charAt(i);
        if (LatinCharacterUtils.isDecoratedLetter(c)) {
            return true;
        }
    }
    return false;
}

From source file:org.cnc.mombot.utils.ContactsEditText.java

private void init(Context context) {
    // Set image height
    mDropdownItemHeight = 48;//from   w ww.  j  a v a2 s . com

    // Set default image
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_contact_picture_holo_light, options);
    options.inSampleSize = Utils.calculateInSampleSize(options, mDropdownItemHeight, mDropdownItemHeight);
    options.inJustDecodeBounds = false;
    mLoadingImage = BitmapFactory.decodeResource(context.getResources(),
            R.drawable.ic_contact_picture_holo_light, options);

    // Set adapter
    mAdapter = new ContactsAdapter(context);
    setAdapter(mAdapter);
    mAdapter.swapCursor(mAdapter.runQueryOnBackgroundThread(""));

    // Separate entries by commas
    setTokenizer(new Tokenizer() {

        @Override
        public CharSequence terminateToken(CharSequence text) {
            int i = text.length();

            while (i > 0 && text.charAt(i - 1) == ' ') {
                i--;
            }

            if (i > 0 && text.charAt(i - 1) == ' ') {
                return text;
            } else {
                if (text instanceof Spanned) {
                    SpannableString sp = new SpannableString(text + " ");
                    TextUtils.copySpansFrom((Spanned) text, 0, text.length(), Object.class, sp, 0);
                    return sp;
                } else {
                    return text + " ";
                }
            }
        }

        @Override
        public int findTokenStart(CharSequence text, int cursor) {
            int i = cursor;

            while (i > 0 && text.charAt(i - 1) != ' ') {
                i--;
            }
            // Check if token really started with ' ', else we don't have a valid token
            if (i < 1 || text.charAt(i - 1) != ' ') {
                return cursor;
            }

            return i;
        }

        @Override
        public int findTokenEnd(CharSequence text, int cursor) {
            int i = cursor;
            int len = text.length();

            while (i < len) {
                if (text.charAt(i) == ' ') {
                    return i;
                } else {
                    i++;
                }
            }

            return len;
        }
    });

    // Pop up suggestions after 1 character is typed.
    setThreshold(1);

    setOnClickListener(this);
    setOnFocusChangeListener(this);
}

From source file:org.multibit.crypto.KeyCrypterOpenSSL.java

/**
 * Convert a CharSequence (which are UTF16) into a char array.
 *
 * Note: a String.getBytes() is not used to avoid creating a String of the password in the JVM.
 */// w  w  w.j  a v a 2s. c  om
private char[] convertToCharArray(CharSequence charSequence) {
    if (charSequence == null) {
        return null;
    }

    char[] charArray = new char[charSequence.length()];
    for (int i = 0; i < charSequence.length(); i++) {
        charArray[i] = charSequence.charAt(i);
    }
    return charArray;
}

From source file:org.opendatakit.services.preferences.fragments.ServerSettingsFragment.java

/**
 * Disallows carriage returns from user entry
 *
 * @return// w  w  w  .j a v  a2  s  .  com
 */
private InputFilter getReturnFilter() {
    InputFilter returnFilter = new InputFilter() {
        public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart,
                int dend) {
            for (int i = start; i < end; i++) {
                if (Character.getType((source.charAt(i))) == Character.CONTROL) {
                    return "";
                }
            }
            return null;
        }
    };
    return returnFilter;
}

From source file:org.opendatakit.services.preferences.fragments.ServerSettingsFragment.java

/**
 * Disallows whitespace from user entry// w ww  .  j a v a  2  s  .com
 *
 * @return
 */
private InputFilter getWhitespaceFilter() {
    InputFilter whitespaceFilter = new InputFilter() {
        public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart,
                int dend) {
            for (int i = start; i < end; i++) {
                if (Character.isWhitespace(source.charAt(i))) {
                    return "";
                }
            }
            return null;
        }
    };
    return whitespaceFilter;
}

From source file:org.jbpm.designer.web.profile.impl.JbpmProfileImpl.java

private boolean isEmpty(final CharSequence str) {
    if (str == null || str.length() == 0) {
        return true;
    }//  w  w  w .ja  v a2s .c  om
    for (int i = 0, length = str.length(); i < length; i++) {
        if (str.charAt(i) != ' ') {
            return false;
        }
    }
    return true;
}

From source file:br.msf.commons.util.CharSequenceUtils.java

public static int countRepetitionChain(final CharSequence sequence) {
    if (length(sequence) < 2) {
        return length(sequence);
    }/*from   w w  w  .ja  v a  2  s.c o m*/
    int max = 1;
    int count = 1;
    char lookupChar = sequence.charAt(0);
    for (int i = 1; i < sequence.length(); i++) {
        if (sequence.charAt(i) == lookupChar) {
            count++;
        } else {
            lookupChar = sequence.charAt(i);
            if (count > max) {
                max = count;
            }
            count = 1;
        }
    }
    if (count > max) {
        max = count;
    }
    return max;
}

From source file:org.power.commons.lang.util.internal.IndentableStringBuilder.java

/**
 * <code>Appendable</code>?/*from   w w w.  j a va 2s .  c o  m*/
 */
public final B append(CharSequence csq, int start, int end) {
    for (int i = start; i < end; i++) {
        append(csq.charAt(i));
    }

    return thisObject();
}