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

      • patternIsInitialized

        private static volatile boolean patternIsInitialized

      • unescapeInitLockObject

        private static final java.lang.Object unescapeInitLockObject

    • Constructor Detail

      • Strings

        public Strings()

    • Method Detail

      • 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)