Class StringUtils

java.lang.Object
org.eclipse.jgit.util.StringUtils
public final class StringUtils extends Object
Miscellaneous string comparison utility methods.

  • Field Details

    • LC

      private static final char[] LC

  • Constructor Details

    • StringUtils

      private StringUtils()

  • Method Details

    • toLowerCase

      public static char toLowerCase(char c)
      Convert the input to lowercase.

      This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale. Only characters in the range 'A' through 'Z' are converted. All other characters are left as-is, even if they otherwise would have a lowercase character equivalent.

      Parameters:
      c - the input character.
      Returns:
      lowercase version of the input.

    • toLowerCase

      public static String toLowerCase(String in)
      Convert the input string to lower case, according to the "C" locale.

      This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale. Only characters in the range 'A' through 'Z' are converted, all other characters are left as-is, even if they otherwise would have a lowercase character equivalent.

      Parameters:
      in - the input string. Must not be null.
      Returns:
      a copy of the input string, after converting characters in the range 'A'..'Z' to 'a'..'z'.

    • capitalize

      public static String capitalize(String str)
      Borrowed from commons-lang StringUtils.capitalize() method.

      Capitalizes a String changing the first letter to title case as per Character.toTitleCase(char). No other letters are changed.

      A null input String returns null.

      Parameters:
      str - the String to capitalize, may be null
      Returns:
      the capitalized String, null if null String input
      Since:
      4.0

    • equalsIgnoreCase

      public static boolean equalsIgnoreCase(String a, String b)
      Test if two strings are equal, ignoring case.

      This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale.

      Parameters:
      a - first string to compare.
      b - second string to compare.
      Returns:
      true if a equals b

    • compareIgnoreCase

      public static int compareIgnoreCase(String a, String b)
      Compare two strings, ignoring case.

      This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale.

      Parameters:
      a - first string to compare.
      b - second string to compare.
      Returns:
      an int.
      Since:
      2.0

    • compareWithCase

      public static int compareWithCase(String a, String b)
      Compare two strings, honoring case.

      This method does not honor the JVM locale, but instead always behaves as though it is in the US-ASCII locale.

      Parameters:
      a - first string to compare.
      b - second string to compare.
      Returns:
      an int.
      Since:
      2.0

    • toBoolean

      public static boolean toBoolean(String stringValue)
      Parse a string as a standard Git boolean value. See toBooleanOrNull(String).
      Parameters:
      stringValue - the string to parse.
      Returns:
      the boolean interpretation of value.
      Throws:
      IllegalArgumentException - if value is not recognized as one of the standard boolean names.

    • toBooleanOrNull

      public static Boolean toBooleanOrNull(String stringValue)
      Parse a string as a standard Git boolean value.

      The terms yes, true, 1, on can all be used to mean true.

      The terms no, false, 0, off can all be used to mean false.

      Comparisons ignore case, via equalsIgnoreCase(String, String).

      Parameters:
      stringValue - the string to parse.
      Returns:
      the boolean interpretation of value or null in case the string does not represent a boolean value

    • join

      public static String join(Collection<String> parts, String separator)
      Join a collection of Strings together using the specified separator.
      Parameters:
      parts - Strings to join
      separator - used to join
      Returns:
      a String with all the joined parts

    • join

      public static String join(Collection<String> parts, String separator, String lastSeparator)
      Join a collection of Strings together using the specified separator and a lastSeparator which is used for joining the second last and the last part.
      Parameters:
      parts - Strings to join
      separator - separator used to join all but the two last elements
      lastSeparator - separator to use for joining the last two elements
      Returns:
      a String with all the joined parts

    • isEmptyOrNull

      public static boolean isEmptyOrNull(String stringValue)
      Test if a string is empty or null.
      Parameters:
      stringValue - the string to check
      Returns:
      true if the string is null or empty

    • replaceLineBreaksWithSpace

      public static String replaceLineBreaksWithSpace(String in)
      Replace CRLF, CR or LF with a single space.
      Parameters:
      in - A string with line breaks
      Returns:
      in without line breaks
      Since:
      3.1