Example usage for java.lang Character isLetterOrDigit

Introduction

In this page you can find the example usage for java.lang Character isLetterOrDigit.

Prototype

public static boolean isLetterOrDigit(int codePoint) 

Source Link

Document

Determines if the specified character (Unicode code point) is a letter or digit.

Usage

From source file:org.asqatasun.crawler.processor.module.AsqatasunTextSeedModule.java

/**
 * Announce all seeds (and nonseed possible-directive lines) from
 * the given Reader/*  ww w .j  a va2  s.co m*/
 * @param reader
 */
protected void announceSeedsFromReader(BufferedReader reader) {
    String s;
    Iterator<String> iter = new RegexLineIterator(new LineReadingIterator(reader),
            RegexLineIterator.COMMENT_LINE, RegexLineIterator.NONWHITESPACE_ENTRY_TRAILING_COMMENT,
            RegexLineIterator.ENTRY);

    while (iter.hasNext()) {
        s = iter.next();
        if (Character.isLetterOrDigit(s.charAt(0))) {
            // consider a likely URI
            seedLine(s);
        } else {
            // report just in case it's a useful directive
            nonseedLine(s);
        }
    }
    publishConcludedSeedBatch();
}

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From source file:com.reprezen.swagedit.editor.SwaggerDocument.java

/**
 * Returns position of the symbol ':' in respect to the given offset.
 * //  ww w  .ja  v a  2  s  . c  o  m
 * Will return -1 if reaches beginning of line of other symbol before finding ':'.
 * 
 * @param offset
 * @return position
 */
public int getDelimiterPosition(int offset) {
    while (true) {
        try {
            char c = getChar(--offset);
            if (Character.isLetterOrDigit(c)) {
                return -1;
            }
            if (c == ':') {
                return offset;
            }
            if (Character.isWhitespace(c)) {
                continue;
            }
            if (c != ':' && !Character.isLetterOrDigit(c)) {
                return -1;
            }
        } catch (BadLocationException e) {
            return -1;
        }
    }
}

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From source file:com.j_o.android.imdb_client.ui.MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mediaList = new ArrayList<Media>();
    mediaGrid = (GridView) findViewById(R.id.media_grid_view);
    editTxMediaSearch = (EditText) findViewById(R.id.edit_search_media);

    // Input filter that not allow special characters.
    InputFilter filter = new InputFilter() {
        @Override/*from  w w  w .  j a  v a  2 s.co  m*/
        public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart,
                int dend) {

            if (source instanceof SpannableStringBuilder) {
                SpannableStringBuilder sourceAsSpannableBuilder = (SpannableStringBuilder) source;
                for (int i = end - 1; i >= start; i--) {
                    char currentChar = source.charAt(i);
                    if (!Character.isLetterOrDigit(currentChar) && !Character.isSpaceChar(currentChar)) {
                        sourceAsSpannableBuilder.delete(i, i + 1);
                    }
                }
                return source;
            } else {
                StringBuilder filteredStringBuilder = new StringBuilder();
                for (int i = 0; i < end; i++) {
                    char currentChar = source.charAt(i);
                    if (Character.isLetterOrDigit(currentChar) || Character.isSpaceChar(currentChar)) {
                        filteredStringBuilder.append(currentChar);
                    }
                }
                return filteredStringBuilder.toString();
            }
        }
    };
    editTxMediaSearch.setFilters(new InputFilter[] { filter });

    editTxMediaSearch.setOnEditorActionListener(new TextView.OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
            if (actionId == EditorInfo.IME_ACTION_SEARCH) {
                new AskForMediaAsyncTaks().execute(editTxMediaSearch.getText().toString());
                InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(editTxMediaSearch.getWindowToken(), 0);
                return true;
            }
            return false;
        }

    });

}

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From source file:org.apache.myfaces.shared_impl.renderkit.html.util.JavascriptUtils.java

public static String getValidJavascriptName(String s, boolean checkForReservedWord) {
    if (checkForReservedWord && RESERVED_WORDS.contains(s)) {
        return s + "_";
    }//from   w  w w .  j  a v a  2 s .  com

    StringBuffer buf = null;
    for (int i = 0, len = s.length(); i < len; i++) {
        char c = s.charAt(i);

        if (Character.isLetterOrDigit(c)) {
            // allowed char
            if (buf != null)
                buf.append(c);
        } else {
            if (buf == null) {
                buf = new StringBuffer(s.length() + 10);
                buf.append(s.substring(0, i));
            }

            buf.append('_');
            if (c < 16) {
                // pad single hex digit values with '0' on the left
                buf.append('0');
            }

            if (c < 128) {
                // first 128 chars match their byte representation in UTF-8
                buf.append(Integer.toHexString(c).toUpperCase());
            } else {
                byte[] bytes;
                try {
                    bytes = Character.toString(c).getBytes("UTF-8");
                } catch (UnsupportedEncodingException e) {
                    throw new RuntimeException(e);
                }

                for (int j = 0; j < bytes.length; j++) {
                    int intVal = bytes[j];
                    if (intVal < 0) {
                        // intVal will be >= 128
                        intVal = 256 + intVal;
                    } else if (intVal < 16) {
                        // pad single hex digit values with '0' on the left
                        buf.append('0');
                    }
                    buf.append(Integer.toHexString(intVal).toUpperCase());
                }
            }
        }

    }

    return buf == null ? s : buf.toString();
}

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From source file:org.sakaiproject.nakamura.util.PathUtils.java

/**
 * @param target//from   w w  w. j  a  v  a 2 s .  c o  m
 *          the target being formed into a structured path.
 * @param b
 * @return the structured path.
 */
private static String getStructuredHash(String target, int levels, boolean absPath) {
    try {
        // take the first element as the key for the target so that subtrees end up in the
        // same place.
        String[] elements = StringUtils.split(target, '/', 1);
        String pathInfo = removeFirstElement(target);
        target = elements[0];

        target = String.valueOf(target);
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        byte[] userHash = md.digest(target.getBytes("UTF-8"));

        char[] chars = new char[(absPath ? 1 : 0) + levels * 3 + target.length() + pathInfo.length()];
        int j = 0;
        if (absPath) {
            chars[j++] = '/';
        }
        for (int i = 0; i < levels; i++) {
            byte current = userHash[i];
            int hi = (current & 0xF0) >> 4;
            int lo = current & 0x0F;
            chars[j++] = (char) (hi < 10 ? ('0' + hi) : ('a' + hi - 10));
            chars[j++] = (char) (lo < 10 ? ('0' + lo) : ('a' + lo - 10));
            chars[j++] = '/';
        }
        for (int i = 0; i < target.length(); i++) {
            char c = target.charAt(i);
            if (!Character.isLetterOrDigit(c)) {
                c = '_';
            }
            chars[j++] = c;

        }
        for (int i = 0; i < pathInfo.length(); i++) {
            chars[j++] = pathInfo.charAt(i);
        }
        return new String(chars);
    } catch (NoSuchAlgorithmException e) {
        logger.error(e.getMessage(), e);
    } catch (UnsupportedEncodingException e) {
        logger.error(e.getMessage(), e);
    }
    return null;
}

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From source file:net.rptools.maptool.client.functions.StrListFunctions.java

/** Prepares a string for use in regex operations. */
public static String fullyQuoteString(String s) {
    // We escape each non-alphanumeric character in the delimiter string
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < s.length(); i++) {
        if (!Character.isLetterOrDigit(s.charAt(i))) {
            sb.append("\\");
        }//from ww w  .  j  ava 2 s .c  o  m
        sb.append(s.charAt(i));
    }
    return sb.toString();
}

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From source file:ca.uhn.hl7v2.sourcegen.SourceGenerator.java

/**
 * Make a Java-ish accessor method name out of a field or component description
 * by removing non-letters and adding "get".  One complication is that some description
 * entries in the DB have their data types in brackets, and these should not be
 * part of the method name.  On the other hand, sometimes critical distinguishing
 * information is in brackets, so we can't omit everything in brackets.  The approach
 * taken here is to eliminate bracketed text if a it looks like a data type.
 *//* w ww .  j  a v a2s.  c  o m*/
public static String makeAccessorName(String fieldDesc, String parentName) {
    StringBuffer aName = new StringBuffer();
    char[] chars = fieldDesc.toCharArray();
    boolean lastCharWasNotLetter = true;
    int inBrackets = 0;
    StringBuffer bracketContents = new StringBuffer();
    for (int i = 0; i < chars.length; i++) {
        if (chars[i] == '(')
            inBrackets++;
        if (chars[i] == ')')
            inBrackets--;

        if (Character.isLetterOrDigit(chars[i])) {
            if (inBrackets > 0) {
                //buffer everthing in brackets
                bracketContents.append(chars[i]);
            } else {
                //add capitalized bracketed text if appropriate 
                if (bracketContents.length() > 0) {
                    aName.append(capitalize(filterBracketedText(bracketContents.toString())));
                    bracketContents = new StringBuffer();
                }
                if (lastCharWasNotLetter) {
                    //first letter of each word is upper-case
                    aName.append(Character.toUpperCase(chars[i]));
                } else {
                    aName.append(chars[i]);
                }
                lastCharWasNotLetter = false;
            }
        } else {
            lastCharWasNotLetter = true;
        }
    }
    aName.append(capitalize(filterBracketedText(bracketContents.toString())));
    String retVal = aName.toString();

    // Accessors with these two names conflict with existing superclass accessor names
    if (retVal.equals("Parent")) {
        retVal = parentName + "Parent";
    }
    if (retVal.equals("Name")) {
        retVal = parentName + "Name";
    }

    return retVal;
}

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From source file:com.manydesigns.elements.util.Util.java

public static String letterOrDigitToWords(String s) {
    if (s == null) {
        return null;
    }/*  w w  w  .  ja va 2s  .  c o  m*/
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < s.length(); i++) {
        char c = s.charAt(i);
        if (Character.isLetterOrDigit(c)) {
            sb.append(Character.toLowerCase(c));
        } else {
            sb.append(' ');
        }
    }
    return sb.toString();
}

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From source file:com.sjsu.crawler.util.RandomStringUtilsTest.java

/**
 * Test the implementation/* ww  w.  ja v  a2  s. co m*/
 */
@Test
public void testRandomStringUtils() {
    String r1 = RandomStringUtils.random(50);
    assertEquals("random(50) length", 50, r1.length());
    String r2 = RandomStringUtils.random(50);
    assertEquals("random(50) length", 50, r2.length());
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    r1 = RandomStringUtils.randomAscii(50);
    assertEquals("randomAscii(50) length", 50, r1.length());
    for (int i = 0; i < r1.length(); i++) {
        assertTrue("char between 32 and 127", r1.charAt(i) >= 32 && r1.charAt(i) <= 127);
    }
    r2 = RandomStringUtils.randomAscii(50);
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    r1 = RandomStringUtils.randomAlphabetic(50);
    assertEquals("randomAlphabetic(50)", 50, r1.length());
    for (int i = 0; i < r1.length(); i++) {
        assertTrue("r1 contains alphabetic",
                Character.isLetter(r1.charAt(i)) && !Character.isDigit(r1.charAt(i)));
    }
    r2 = RandomStringUtils.randomAlphabetic(50);
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    r1 = RandomStringUtils.randomAlphanumeric(50);
    assertEquals("randomAlphanumeric(50)", 50, r1.length());
    for (int i = 0; i < r1.length(); i++) {
        assertTrue("r1 contains alphanumeric", Character.isLetterOrDigit(r1.charAt(i)));
    }
    r2 = RandomStringUtils.randomAlphabetic(50);
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    r1 = RandomStringUtils.randomNumeric(50);
    assertEquals("randomNumeric(50)", 50, r1.length());
    for (int i = 0; i < r1.length(); i++) {
        assertTrue("r1 contains numeric", Character.isDigit(r1.charAt(i)) && !Character.isLetter(r1.charAt(i)));
    }
    r2 = RandomStringUtils.randomNumeric(50);
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    String set = "abcdefg";
    r1 = RandomStringUtils.random(50, set);
    assertEquals("random(50, \"abcdefg\")", 50, r1.length());
    for (int i = 0; i < r1.length(); i++) {
        assertTrue("random char in set", set.indexOf(r1.charAt(i)) > -1);
    }
    r2 = RandomStringUtils.random(50, set);
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    r1 = RandomStringUtils.random(50, (String) null);
    assertEquals("random(50) length", 50, r1.length());
    r2 = RandomStringUtils.random(50, (String) null);
    assertEquals("random(50) length", 50, r2.length());
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    set = "stuvwxyz";
    r1 = RandomStringUtils.random(50, set.toCharArray());
    assertEquals("random(50, \"stuvwxyz\")", 50, r1.length());
    for (int i = 0; i < r1.length(); i++) {
        assertTrue("random char in set", set.indexOf(r1.charAt(i)) > -1);
    }
    r2 = RandomStringUtils.random(50, set);
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    r1 = RandomStringUtils.random(50, (char[]) null);
    assertEquals("random(50) length", 50, r1.length());
    r2 = RandomStringUtils.random(50, (char[]) null);
    assertEquals("random(50) length", 50, r2.length());
    assertTrue("!r1.equals(r2)", !r1.equals(r2));

    final long seed = System.currentTimeMillis();
    r1 = RandomStringUtils.random(50, 0, 0, true, true, null, new Random(seed));
    r2 = RandomStringUtils.random(50, 0, 0, true, true, null, new Random(seed));
    assertEquals("r1.equals(r2)", r1, r2);

    r1 = RandomStringUtils.random(0);
    assertEquals("random(0).equals(\"\")", "", r1);
}

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From source file:org.glimpse.server.manager.orm.OrmUserManager.java

private boolean isValidConnectionId(String connectionId) {
    if (connectionId == null) {
        return false;
    }/*from  w  ww  .  j  a  v  a2s.  c o m*/

    if (connectionId.length() != CONNECTION_ID_LENGTH) {
        return false;
    }

    for (int i = 0; i < connectionId.length(); i++) {
        if (!Character.isLetterOrDigit(connectionId.charAt(i))) {
            return false;
        }
    }

    return true;
}

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