Examples with CharMatcher com.google.common.base.CharMatcher used on opensource projects

Example 1 with CharMatcher

use of com.google.common.base.CharMatcher in project binnavi by google.

the class Convert method isHexString.

/**
   * Tests whether a given string is a valid hexadecimal string.
   * 
   * @param string The string to check.
   * 
   * @return True, if the string is a valid hexadecimal string. False, otherwise.
   */
public static boolean isHexString(final String string) {
    Preconditions.checkNotNull(string, "Error: String argument can't be null");
    final CharMatcher cm = CharMatcher.inRange('0', '9').or(CharMatcher.inRange('a', 'z')).or(CharMatcher.inRange('A', 'F'));
    for (int i = 0; i < string.length(); i++) {
        if (!cm.apply(string.charAt(i))) {
            return false;
        }
    }
    return string.length() != 0;
}

Example 2 with CharMatcher

use of com.google.common.base.CharMatcher in project binnavi by google.

the class Convert method isDecString.

/**
   * Tests whether a given string is a valid decimal string.
   * 
   * @param string The string to check.
   * 
   * @return True, if the string is a valid decimal string. False, otherwise.
   */
public static boolean isDecString(final String string) {
    Preconditions.checkNotNull(string);
    final CharMatcher cm = CharMatcher.inRange('0', '9');
    for (int i = 0; i < string.length(); i++) {
        if (!cm.apply(string.charAt(i))) {
            return false;
        }
    }
    return string.length() != 0;
}

Example 3 with CharMatcher

use of com.google.common.base.CharMatcher in project presto by prestodb.

the class InvokeInstruction method checkUnqualifiedName.

private static void checkUnqualifiedName(String name) {
    // JVM Specification 4.2.2 Unqualified Names
    requireNonNull(name, "name is null");
    checkArgument(!name.isEmpty(), "name is empty");
    if (name.equals("<init>") || name.equals("<clinit>")) {
        return;
    }
    CharMatcher invalid = CharMatcher.anyOf(".;[/<>");
    checkArgument(invalid.matchesNoneOf(name), "invalid name: %s", name);
}

Example 4 with CharMatcher

use of com.google.common.base.CharMatcher in project gerrit by GerritCodeReview.

the class FieldDef method checkName.

private static String checkName(String name) {
    CharMatcher m = CharMatcher.anyOf("abcdefghijklmnopqrstuvwxyz0123456789_");
    checkArgument(name != null && m.matchesAllOf(name), "illegal field name: %s", name);
    return name;
}

Example 5 with CharMatcher

use of com.google.common.base.CharMatcher in project cdap by caskdata.

the class StreamUtils method getGeneration.

/**
   * Finds the current generation if of a stream. It scans the stream directory to look for largest generation
   * number in directory name.
   *
   * @param streamLocation location to scan for generation id
   * @return the generation id
   */
public static int getGeneration(Location streamLocation) throws IOException {
    // Default generation is 0.
    int genId = 0;
    CharMatcher numMatcher = CharMatcher.inRange('0', '9');
    List<Location> locations = streamLocation.list();
    if (locations == null) {
        return 0;
    }
    for (Location location : locations) {
        if (numMatcher.matchesAllOf(location.getName()) && location.isDirectory()) {
            int id = Integer.parseInt(location.getName());
            if (id > genId) {
                genId = id;
            }
        }
    }
    return genId;
}