Example usage for org.apache.commons.lang3 CharUtils isAsciiAlphanumeric

Introduction

In this page you can find the example usage for org.apache.commons.lang3 CharUtils isAsciiAlphanumeric.

Prototype

public static boolean isAsciiAlphanumeric(final char ch) 

Source Link

Document

Checks whether the character is ASCII 7 bit numeric.

 CharUtils.isAsciiAlphanumeric('a')  = true CharUtils.isAsciiAlphanumeric('A')  = true CharUtils.isAsciiAlphanumeric('3')  = true CharUtils.isAsciiAlphanumeric('-')  = false CharUtils.isAsciiAlphanumeric('\n') = false CharUtils.isAsciiAlphanumeric('©') = false 

Usage

From source file:com.norconex.commons.lang.file.FileUtil.java

/**
 * Converts any String to a valid file-system file name representation. The 
 * valid file name is constructed so it can be written to virtually any 
 * operating system.//from w w w  .  j  a va2 s  .  c  o  m
 * Use {@link #fromSafeFileName(String)} to get back the original name.
 * @param unsafeFileName the file name to make safe.
 * @return valid file name
 */
public static String toSafeFileName(String unsafeFileName) {
    if (unsafeFileName == null) {
        return null;
    }
    StringBuilder b = new StringBuilder();
    for (int i = 0; i < unsafeFileName.length(); i++) {
        char ch = unsafeFileName.charAt(i);
        if (CharUtils.isAsciiAlphanumeric(ch) || ch == '-' || ch == '.') {
            b.append(ch);
        } else {
            b.append('_');
            b.append((int) ch);
            b.append('_');
        }
    }
    return b.toString();
}

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From source file:com.google.api.tools.framework.importers.swagger.MultiSwaggerParser.java

/** Replaces all non alphanumeric characters in input string with '_' */
private static String stringToAlphanumeric(String input) {
    StringBuilder alphaNumeric = new StringBuilder();
    for (char hostnameChar : input.toCharArray()) {
        if (CharUtils.isAsciiAlphanumeric(hostnameChar)) {
            alphaNumeric.append(hostnameChar);
        } else {/*from   w  w  w. ja  v  a 2 s .  co  m*/
            alphaNumeric.append(API_NAME_FILLER_CHAR);
        }
    }
    return alphaNumeric.toString();
}

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From source file:net.tachtler.browscap4j.Browscap4jFileReader.java

/**
 * Format the given String to a Java regular expression formatted String.
 * //from   w  w  w  .j  a  v  a  2 s.co  m
 * @param regexPattern
 * @return regexPattern formatted String
 */
private static String convertToRegex(String regexPattern) {

    StringBuffer stringBuffer = new StringBuffer();

    /*
     * Add the regular expression anchor at the beginning of the line.
     */
    stringBuffer.append("^");

    /*
     * Convert char by char by following rule set.
     */
    for (final char c : regexPattern.toCharArray()) {
        switch (c) {
        case '*':
            stringBuffer.append(".*?");
            break;
        case '?':
            stringBuffer.append(".");
            break;
        default:
            if (CharUtils.isAsciiAlphanumeric(c) || c == ' ') {
                stringBuffer.append(c);
            } else {
                stringBuffer.append("\\").append(c);
            }
        }
    }

    /*
     * Add the regular expression anchor at the end of the line.
     */
    stringBuffer.append("$");

    return stringBuffer.toString().toLowerCase();
}

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From source file:org.cryptomator.ui.controllers.UnlockController.java

private void filterAlphanumericKeyEvents(KeyEvent t) {
    if (t.getCharacter() == null || t.getCharacter().length() == 0) {
        return;/*ww  w .  j a va  2  s .co  m*/
    }
    char c = CharUtils.toChar(t.getCharacter());
    if (!(CharUtils.isAsciiAlphanumeric(c) || c == '_')) {
        t.consume();
    }
}

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From source file:org.cryptomator.ui.InitializeController.java

public void filterAlphanumericKeyEvents(KeyEvent t) {
    if (t.getCharacter() == null || t.getCharacter().length() == 0) {
        return;//from   www . j ava  2 s  .c o m
    }
    char c = t.getCharacter().charAt(0);
    if (!CharUtils.isAsciiAlphanumeric(c)) {
        t.consume();
    }
}

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From source file:org.xlrnet.tibaija.processor.ExecutionEnvironment.java

/**
 * Register a command as an expression function in the execution environment. All programs and other commands can
 * use the new function once it has been registered. Every command may only be associated with at most one execution
 * environment. If a command is registered as a function expression (i.e. through this function) it can be used in
 * or as an expression and must return a value.
 *
 * @param commandName/*w w w .j a v a2s .  co  m*/
 *         Name of the new command under which it can be accessed.
 * @param command
 *         An instance of the concrete command.
 */
public void registerExpressionFunction(@NotNull String commandName, @NotNull Command command)
        throws TIRuntimeException {
    checkNotNull(commandName);
    checkNotNull(command);

    checkArgument(StringUtils.isNotBlank(commandName), "Expression function name may not be blank");
    Character firstChar = commandName.charAt(0);
    checkArgument(CharUtils.isAsciiAlphaLower(firstChar) || !CharUtils.isAsciiAlphanumeric(firstChar),
            "Expression function name must begin with a lowercase letter or be non-alphanumeric");

    if (expressionFunction.get(commandName) != null)
        throw new DuplicateCommandException("Function expression name is already registered: " + commandName);

    if (command.getEnvironment() != null)
        throw new DuplicateCommandException(
                "New command instance is already registered in another environment");

    command.setEnvironment(this);
    expressionFunction.put(commandName, command);

    LOGGER.debug("Registered new expression function '{}'", commandName);
}

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