Example usage for java.lang CharSequence length

Introduction

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

Prototype

int length();

Source Link

Document

Returns the length of this character sequence.

Usage

From source file:mobile.tiis.appv2.helpers.Utils.java

public static boolean isStringBlank(CharSequence str) {
    int strLen;/*from w w w .  j  a  va  2  s  . c o  m*/
    if (str == null || (strLen = str.length()) == 0) {
        return true;
    }
    for (int i = 0; i < strLen; i++) {
        if ((Character.isWhitespace(str.charAt(i)) == false)) {
            return false;
        }
    }
    return true;
}

From source file:Main.java

/**
 * Escapes a character sequence so that it is valid XML.
 * //from w  ww. j a  v  a2s .co  m
 * @param s
 *        The character sequence.
 * @return The escaped version of the character sequence.
 */
public static String escapeXML(CharSequence s) {
    // double quote -- quot
    // ampersand -- amp
    // less than -- lt
    // greater than -- gt
    // apostrophe -- apos
    StringBuilder sb = new StringBuilder(s.length() * 2);
    for (int i = 0; i < s.length();) {
        int codePoint = Character.codePointAt(s, i);
        if (codePoint == '<') {
            sb.append(LT);
        } else if (codePoint == '>') {
            sb.append(GT);
        } else if (codePoint == '\"') {
            sb.append(QUOT);
        } else if (codePoint == '&') {
            sb.append(AMP);
        } else if (codePoint == '\'') {
            sb.append(APOS);
        } else {
            sb.appendCodePoint(codePoint);
        }
        i += Character.charCount(codePoint);
    }
    return sb.toString();
}

From source file:Main.java

private static int getTextWidth(final CharSequence text, final TextPaint paint) {
    if (TextUtils.isEmpty(text)) {
        return 0;
    }/*from   ww w .j a v a  2  s  .c o m*/
    final Typeface savedTypeface = paint.getTypeface();
    paint.setTypeface(getTextTypeface(text));
    final int len = text.length();
    final float[] widths = new float[len];
    final int count = paint.getTextWidths(text, 0, len, widths);
    int width = 0;
    for (int i = 0; i < count; i++) {
        width += Math.round(widths[i] + 0.5f);
    }
    paint.setTypeface(savedTypeface);
    return width;
}

From source file:net.myrrix.common.math.MatrixUtils.java

private static void appendWithPadOrTruncate(CharSequence value, StringBuilder to) {
    int length = value.length();
    if (length >= PRINT_COLUMN_WIDTH) {
        to.append(value, 0, PRINT_COLUMN_WIDTH);
    } else {/*from w  w  w . ja  v  a  2s  .  c  o  m*/
        for (int i = length; i < PRINT_COLUMN_WIDTH; i++) {
            to.append(' ');
        }
        to.append(value);
    }
}

From source file:hrytsenko.csv.IO.java

static CsvSchema.Builder getSchema(Map<String, ?> args) {
    CharSequence separator = (CharSequence) args.get("separator");
    if (separator == null) {
        separator = ",";
    }//from   w w  w.j  ava2s . com
    if (separator.length() != 1) {
        throw new IllegalArgumentException("Use single character as separator.");
    }

    CharSequence qualifier = (CharSequence) args.get("qualifier");
    if (qualifier == null) {
        qualifier = "\"";
    }
    if (qualifier.length() != 1) {
        throw new IllegalArgumentException("Use single character as qualifier.");
    }

    CsvSchema.Builder schema = CsvSchema.builder();
    schema.setColumnSeparator(separator.charAt(0));
    schema.setQuoteChar(qualifier.charAt(0));
    return schema;
}

From source file:com.kstenschke.shifter.utils.UtilsTextual.java

/**
 * @param   text        Full text//from ww  w.j  av a 2  s  . c  om
 * @param   offset      Offset from before which to extract one character
 * @return  String      Character BEFORE word at given caret offset
 */
public static String getCharBeforeOffset(CharSequence text, int offset) {
    if (text.length() == 0 || offset == 0)
        return "";

    if (offset > 0) {
        return text.subSequence(offset - 1, offset).toString();
    }

    return "";
}

From source file:com.kstenschke.shifter.utils.UtilsTextual.java

/**
 * @param   text        Full text/*from  ww  w  .ja v  a 2s. co  m*/
 * @param   offset      Offset from after which to extract one character
 * @return  String      Character AFTER word at caret offset
 */
public static String getCharAfterOffset(CharSequence text, int offset) {
    if (text.length() < offset + 2 || offset == 0)
        return "";

    if (offset > 0) {
        return text.subSequence(offset + 1, offset + 2).toString();
    }

    return "";
}

From source file:Main.java

private static void append(StringBuilder sb, CharSequence... data) {
    for (CharSequence d : data) {
        if (d != null) {
            if (d instanceof Spanned) {
                String s = Html.toHtml((Spanned) d);
                sb.append(hexStringFromInt(FLAG_SPANNED, NUM_LEN));
                append(sb, s);/*w  w  w.  j  av a 2s . c om*/
            } else {
                int len = d.length();
                sb.append(hexStringFromInt(len, NUM_LEN)).append(d);
            }
        } else {
            sb.append(hexStringFromInt(FLAG_NULL, NUM_LEN));
        }
    }
}

From source file:Main.java

public static CharSequence addImageToText(Context context, CharSequence text, int resID, int start, int end) {
    SpannableStringBuilder builder = new SpannableStringBuilder(text);

    Drawable d = context.getResources().getDrawable(resID);
    d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
    ImageSpan span = new ImageSpan(d, ImageSpan.ALIGN_BASELINE);
    builder.setSpan(span, text.length(), 3, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);

    return builder;
}

From source file:io.mapzone.controller.vm.http.HttpForwarder.java

/**
 * Encodes characters in the query or fragment part of the URI.
 *
 * <p>/*from  w  ww  . ja  va  2s.  c om*/
 * Unfortunately, an incoming URI sometimes has characters disallowed by the
 * spec. HttpClient insists that the outgoing proxied request has a valid URI
 * because it uses Java's {@link URI}. To be more forgiving, we must escape the
 * problematic characters. See the URI class for the spec.
 *
 * @param in example: name=value&foo=bar#fragment
 */
protected static CharSequence encodeUriQuery(CharSequence in) {
    // Note that I can't simply use URI.java to encode because it will escape
    // pre-existing escaped things.
    StringBuilder outBuf = null;
    Formatter formatter = null;
    for (int i = 0; i < in.length(); i++) {
        char c = in.charAt(i);
        boolean escape = true;
        if (c < 128) {
            if (asciiQueryChars.get((int) c)) {
                escape = false;
            }
        } else if (!Character.isISOControl(c) && !Character.isSpaceChar(c)) {// not-ascii
            escape = false;
        }
        if (!escape) {
            if (outBuf != null)
                outBuf.append(c);
        } else {
            // escape
            if (outBuf == null) {
                outBuf = new StringBuilder(in.length() + 5 * 3);
                outBuf.append(in, 0, i);
                formatter = new Formatter(outBuf);
            }
            // leading %, 0 padded, width 2, capital hex
            formatter.format("%%%02X", (int) c);// TODO
        }
    }
    return outBuf != null ? outBuf : in;
}