Example usage for java.lang CharSequence length

List of usage examples for java.lang CharSequence length

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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:StringUtil.java

public static boolean isCharAtEqual(CharSequence source, int index, char match) {
    if ((index < 0) || (index >= source.length())) {
        return false;
    }/*from w  w  w  . jav a 2s.c om*/
    return source.charAt(index) == match;
}

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

/**
 * Finds any occurrence of the <code>str</code> character sequence in this StringValue.
 * The search starts at position <code>start</code>.
 * /* w w  w .  j a v a 2  s .  c  om*/
 * @return The position of the first occurrence of the search string in the string value, or <code>-1</code>, if
 *         the character sequence was not found.
 */
public int find(CharSequence str, int start) {
    final int pLen = this.len;
    final int sLen = str.length();

    if (sLen == 0) {
        throw new IllegalArgumentException("Cannot find empty string.");
    }

    int pPos = start;

    final char first = str.charAt(0);

    while (pPos < pLen) {
        if (first == this.value[pPos++]) {
            // matching first character
            final int fallBackPosition = pPos;
            int sPos = 1;
            boolean found = true;

            while (sPos < sLen) {
                if (pPos >= pLen) {
                    // no more characters in string value
                    pPos = fallBackPosition;
                    found = false;
                    break;
                }

                if (str.charAt(sPos++) != this.value[pPos++]) {
                    pPos = fallBackPosition;
                    found = false;
                    break;
                }
            }
            if (found) {
                return fallBackPosition - 1;
            }
        }
    }
    return -1;
}

From source file:net.iiit.siel.analysis.lang.LanguageIdentifier.java

/**
 * Check char sequence.//from w w  w  . java 2  s.  c  om
 *
 * @param seq the seq
 * @return the boolean
 */
private Boolean checkCharSequence(CharSequence seq) {

    Boolean isForeign = true;
    char underScore = '_';
    for (int j = 0; j < seq.length(); j++) {
        if (seq.charAt(j) == underScore) {
            continue;
        }
        UnicodeBlock currentUnicode = Character.UnicodeBlock.of(seq.charAt(j));

        if (currentUnicode == Character.UnicodeBlock.BENGALI)
            isForeign = false;
        else if (currentUnicode == Character.UnicodeBlock.TELUGU)
            isForeign = false;
        else if (currentUnicode == Character.UnicodeBlock.TAMIL)
            isForeign = false;
        else if (currentUnicode == Character.UnicodeBlock.DEVANAGARI)
            isForeign = false;
        else if (currentUnicode == Character.UnicodeBlock.GURMUKHI)
            isForeign = false;
        else if (currentUnicode == Character.UnicodeBlock.GUJARATI)
            isForeign = false;
        else if (currentUnicode == Character.UnicodeBlock.ORIYA)
            isForeign = false;
        else if (seq.charAt(j) >= 0 && seq.charAt(j) <= 127)
            isForeign = false;
        /*
        *                          * Return if it is a foreign character, because seq can be composed
        *                                                   * of indic and foreign characters.
        *                                                                            */
        else
            return isForeign;
    }
    return isForeign;
}

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

/**
 * Sets the value of the StringValue to a substring of the given string.
 * //from  ww  w.  j a  va 2 s  .  c o  m
 * @param value The new string value.
 * @param offset The position to start the substring.
 * @param len The length of the substring.
 */
public void setValue(CharSequence value, int offset, int len) {
    Validate.notNull(value);
    if (offset < 0 || len < 0 || offset > value.length() - len) {
        throw new IndexOutOfBoundsException("offset: " + offset + " len: " + len + " value.len: " + len);
    }

    ensureSize(len);
    this.len = len;
    for (int i = 0; i < len; i++) {
        this.value[i] = value.charAt(offset + i);
    }
    this.len = len;
    this.hashCode = 0;
}

From source file:com.xorcode.andtweet.TweetListActivity.java

@Override
public boolean onContextItemSelected(MenuItem item) {
    super.onContextItemSelected(item);
    AdapterView.AdapterContextMenuInfo info;
    try {//  w w w  . j a va2 s  . com
        info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
    } catch (ClassCastException e) {
        Log.e(TAG, "bad menuInfo", e);
        return false;
    }

    mCurrentId = info.id;

    Uri uri;
    Cursor c;

    switch (item.getItemId()) {
    case CONTEXT_MENU_ITEM_REPLY:
        uri = ContentUris.withAppendedId(Tweets.CONTENT_URI, info.id);
        c = getContentResolver().query(uri, new String[] { Tweets._ID, Tweets.AUTHOR_ID }, null, null, null);
        try {
            c.moveToFirst();
            String reply = "@" + c.getString(c.getColumnIndex(Tweets.AUTHOR_ID)) + " ";
            long replyId = c.getLong(c.getColumnIndex(Tweets._ID));
            mTweetEditor.startEditing(reply, replyId);
        } catch (Exception e) {
            Log.e(TAG, "onContextItemSelected: " + e.toString());
            return false;
        } finally {
            if (c != null && !c.isClosed())
                c.close();
        }
        return true;

    case CONTEXT_MENU_ITEM_RETWEET:
        uri = ContentUris.withAppendedId(Tweets.CONTENT_URI, info.id);
        c = getContentResolver().query(uri, new String[] { Tweets._ID, Tweets.AUTHOR_ID, Tweets.MESSAGE }, null,
                null, null);
        try {
            c.moveToFirst();

            StringBuilder message = new StringBuilder();
            String reply = "RT @" + c.getString(c.getColumnIndex(Tweets.AUTHOR_ID)) + " ";
            message.append(reply);
            CharSequence text = c.getString(c.getColumnIndex(Tweets.MESSAGE));
            int len = 140 - reply.length() - 3;
            if (text.length() < len) {
                len = text.length();
            }
            message.append(text, 0, len);
            if (message.length() == 137) {
                message.append("...");
            }
            mTweetEditor.startEditing(message.toString(), 0);
        } catch (Exception e) {
            Log.e(TAG, "onContextItemSelected: " + e.toString());
            return false;
        } finally {
            if (c != null && !c.isClosed())
                c.close();
        }
        return true;

    case CONTEXT_MENU_ITEM_DESTROY_STATUS:
        sendCommand(new CommandData(CommandEnum.DESTROY_STATUS, mCurrentId));
        return true;

    case CONTEXT_MENU_ITEM_FAVORITE:
        sendCommand(new CommandData(CommandEnum.CREATE_FAVORITE, mCurrentId));
        return true;

    case CONTEXT_MENU_ITEM_DESTROY_FAVORITE:
        sendCommand(new CommandData(CommandEnum.DESTROY_FAVORITE, mCurrentId));
        return true;

    case CONTEXT_MENU_ITEM_SHARE:
        uri = ContentUris.withAppendedId(Tweets.CONTENT_URI, info.id);
        c = getContentResolver().query(uri, new String[] { Tweets._ID, Tweets.AUTHOR_ID, Tweets.MESSAGE }, null,
                null, null);
        try {
            c.moveToFirst();

            StringBuilder subject = new StringBuilder();
            StringBuilder text = new StringBuilder();
            String message = c.getString(c.getColumnIndex(Tweets.MESSAGE));

            subject.append(getText(R.string.button_create_tweet));
            subject.append(" - " + message);
            int maxlength = 80;
            if (subject.length() > maxlength) {
                subject.setLength(maxlength);
                // Truncate at the last space
                subject.setLength(subject.lastIndexOf(" "));
                subject.append("...");
            }

            text.append(message);
            text.append("\n-- \n" + c.getString(c.getColumnIndex(Tweets.AUTHOR_ID)));
            text.append("\n URL: " + "http://twitter.com/" + c.getString(c.getColumnIndex(Tweets.AUTHOR_ID))
                    + "/status/" + c.getString(c.getColumnIndex(Tweets._ID)));

            Intent share = new Intent(android.content.Intent.ACTION_SEND);
            share.setType("text/plain");
            share.putExtra(Intent.EXTRA_SUBJECT, subject.toString());
            share.putExtra(Intent.EXTRA_TEXT, text.toString());
            startActivity(Intent.createChooser(share, getText(R.string.menu_item_share)));

        } catch (Exception e) {
            Log.e(TAG, "onContextItemSelected: " + e.toString());
            return false;
        } finally {
            if (c != null && !c.isClosed())
                c.close();
        }
        return true;

    case CONTEXT_MENU_ITEM_UNFOLLOW:
    case CONTEXT_MENU_ITEM_BLOCK:
    case CONTEXT_MENU_ITEM_DIRECT_MESSAGE:
    case CONTEXT_MENU_ITEM_PROFILE:
        Toast.makeText(this, R.string.unimplemented, Toast.LENGTH_SHORT).show();
        return true;
    }
    return false;
}

From source file:com.intellij.lang.jsgraphql.ide.annotator.JSGraphQLAnnotator.java

private CharSequence getWhitespacePaddedGraphQL(PsiFile psiFile, CharSequence buffer) {
    // find the template expressions in the file
    Collection<JSStringTemplateExpression> stringTemplateExpressions = PsiTreeUtil
            .collectElementsOfType(psiFile, JSStringTemplateExpression.class);
    StringBuilder sb = new StringBuilder(0);
    Integer builderPos = null;//from   w  w w.j av a 2 s.  c  o  m
    for (JSStringTemplateExpression stringTemplateExpression : stringTemplateExpressions) {
        if (JSGraphQLLanguageInjectionUtil.isJSGraphQLLanguageInjectionTarget(stringTemplateExpression)) {
            final TextRange graphQLTextRange = JSGraphQLLanguageInjectionUtil
                    .getGraphQLTextRange(stringTemplateExpression);
            if (builderPos == null) {
                sb.setLength(buffer.length());
                builderPos = 0;
            }
            // write the JS as whitespace so it'll be ignored by the GraphQL tooling, while preserving line numbers and columns.
            TextRange templateTextRange = stringTemplateExpression.getTextRange();
            int graphQLStartOffset = templateTextRange.getStartOffset() + graphQLTextRange.getStartOffset();
            int graphQLEndOffset = templateTextRange.getStartOffset() + graphQLTextRange.getEndOffset();
            applyWhiteSpace(buffer, sb, builderPos, graphQLStartOffset);
            String graphQLText = buffer.subSequence(graphQLStartOffset, graphQLEndOffset /* end is exclusive*/)
                    .toString();
            sb.replace(graphQLStartOffset, graphQLEndOffset /* end is exclusive*/, graphQLText);
            builderPos = graphQLEndOffset /* start next whitespace padding after the graph ql */;
        }
    }

    // last whitespace segment
    if (builderPos != null && builderPos < buffer.length()) {
        applyWhiteSpace(buffer, sb, builderPos, buffer.length());
    }

    return sb;
}

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

/**
 * Checks whether the substring, starting at the specified index, starts with the given prefix string.
 * //from w ww  .j  a v  a 2 s . c o  m
 * @param prefix The prefix character sequence.
 * @param startIndex The position to start checking for the prefix.
 * 
 * @return True, if this StringValue substring, starting at position <code>startIndex</code> has </code>prefix</code>
 *         as its prefix.
 */
public boolean startsWith(CharSequence prefix, int startIndex) {
    final char[] thisChars = this.value;
    final int pLen = this.len;
    final int sLen = prefix.length();

    if ((startIndex < 0) || (startIndex > pLen - sLen)) {
        return false;
    }

    int sPos = 0;
    while (sPos < sLen) {
        if (thisChars[startIndex++] != prefix.charAt(sPos++)) {
            return false;
        }
    }
    return true;
}

From source file:android.support.design.widget.CollapsingTextHelper.java

private boolean calculateIsRtl(CharSequence text) {
    final boolean defaultIsRtl = ViewCompat.getLayoutDirection(mView) == ViewCompat.LAYOUT_DIRECTION_RTL;
    return (defaultIsRtl ? TextDirectionHeuristicsCompat.FIRSTSTRONG_RTL
            : TextDirectionHeuristicsCompat.FIRSTSTRONG_LTR).isRtl(text, 0, text.length());
}

From source file:android.hqs.view.pager.indicator.TitlePageIndicator.java

/**
 * Calculate the bounds for a view's title
 *
 * @param index/*from  w w  w.ja  va2s.c o m*/
 * @param paint
 * @return
 */
private Rect calcBounds(int index, Paint paint) {
    //Calculate the text bounds
    Rect bounds = new Rect();
    CharSequence title = getTitle(index);
    bounds.right = (int) paint.measureText(title, 0, title.length());
    bounds.bottom = (int) (paint.descent() - paint.ascent());
    return bounds;
}

From source file:StringUtil.java

/**
 * Converts char sequence into byte array. Chars are truncated to byte size.
 *///from  w  w  w.  j  a v a 2s .c  om
public static byte[] toByteArray(CharSequence charSequence) {
    if (charSequence == null) {
        return null;
    }
    byte[] barr = new byte[charSequence.length()];
    for (int i = 0; i < barr.length; i++) {
        barr[i] = (byte) charSequence.charAt(i);
    }
    return barr;
}