Package edu.umd.cs.findbugs.util

Class Strings

  • public class Strings
extends java.lang.Object
    A class for static String utility methods.

    • Field Detail

      • XML_ALLOWED_LOW_CHARACTER_BOUND

        private static final int XML_ALLOWED_LOW_CHARACTER_BOUND
        See Also:
        Constant Field Values

      • xmlLowValueEscapeStringsInitialized

        private static volatile boolean xmlLowValueEscapeStringsInitialized

      • xmlLowValueEscapeStrings

        private static final java.lang.String[] xmlLowValueEscapeStrings

      • escapeInitLockObject

        private static final java.lang.Object escapeInitLockObject

      • unicodeUnescapeMatchExpression

        private static final java.lang.String unicodeUnescapeMatchExpression
        See Also:
        Constant Field Values

      • unescapePattern

        private static java.util.regex.Pattern unescapePattern

      • paternIsInitialized

        private static volatile boolean paternIsInitialized

      • unescapeInitLockObject

        private static final java.lang.Object unescapeInitLockObject

    • Constructor Detail

      • Strings

        public Strings()

    • Method Detail

      • replace

        @Deprecated
public static java.lang.String replace​(java.lang.String source,
                                       java.lang.String find,
                                       java.lang.String repl)
        Deprecated.
        This is intended to be semantically equivalent to source.replace(find, repl) but also compatible with JDK 1.4.
        Parameters:
        source - The String on which to operate
        find - The literal substring to be replaced
        repl - The literal replacement substring
        Returns:
        The resultant String after substitution
        Throws:
        java.lang.NullPointerException - if any of the arguments are null
        java.lang.IllegalArgumentException - if find has zero length
        See Also:
        String.replace(CharSequence target, CharSequence replacement)

      • toString

        @Deprecated
public static java.lang.String toString​(java.lang.Object[] a)
        Deprecated.
        This is intended to be equivalent to Arrays.toString(a) but also compatible with JDK 1.4. This concatenates the results of calling String.valueOf() on each element of the array, so this won't work well for multi-dimensional arrays.
        See Also:
        String.valueOf(Object), Arrays.toString(Object[]), Arrays.deepToString(Object[])

      • trimComma

        public static java.lang.String trimComma​(java.lang.String s)
        Trim trailing comma from given string.
        Parameters:
        s - a string
        Returns:
        the same string with trailing comma trimmed (if any)

      • isInvalidXMLCharacter

        private static boolean isInvalidXMLCharacter​(int c)

      • initializeEscapeMap

        public static void initializeEscapeMap()
        Initializes the map of characters to be escaped and their corresponding escape sequences. This method will be invoked automatically the first time a string is escaped/unescaped.
        See Also:
        Extensible Markup Language (XML) 1.0 (Fifth Edition)

      • escapeXml

        public static java.lang.String escapeXml​(java.lang.String s)
        Escape XML entities and illegal characters in the given string. This enhances the functionality of org.apache.commons.lang.StringEscapeUtils.escapeXml by escaping low-valued unprintable characters, which are not permitted by the W3C XML 1.0 specification.
        Parameters:
        s - a string
        Returns:
        the same string with characters not permitted by the XML specification escaped
        See Also:
        Extensible Markup Language (XML) 1.0 (Fifth Edition), org.apache.commons.lang.StringEscapeUtils javadoc

      • initializeUnescapePattern

        public static boolean initializeUnescapePattern()
        Initialize regular expressions used in unescaping. This method will be invoked automatically the first time a string is unescaped.

      • unescapeXml

        public static java.lang.String unescapeXml​(java.lang.String s)
        Unescape XML entities and illegal characters in the given string. This enhances the functionality of org.apache.commons.lang.StringEscapeUtils.unescapeXml by unescaping low-valued unprintable characters, which are not permitted by the W3C XML 1.0 specification.
        Parameters:
        s - a string
        Returns:
        the same string with XML entities/escape sequences unescaped
        See Also:
        Extensible Markup Language (XML) 1.0 (Fifth Edition), org.apache.commons.lang.StringEscapeUtils javadoc

      • escapeLFCRBackSlash

        public static java.lang.String escapeLFCRBackSlash​(java.lang.String s)