Package io.github.astrapi69.regex

Class RegExExtensions

  • public final class RegExExtensions
extends java.lang.Object
    Utility class for the use with regular expressions.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String VALID_CHARS_IN_FILENAME
      Regular expression class for the valid characters in a filename.
      static java.lang.String VALID_EMAIL  
      static java.lang.String VALID_PHONE  
      static java.lang.String WILDCARD_ASTERISK
      Constant for the wildcard asterisk "*".
      static java.lang.String WILDCARD_MANYCHARS_RE
      Regular expression for many characters in the filename.
      static java.lang.String WILDCARD_ONECHAR_RE
      Regular expression for exactly on character in the filename.
      static java.lang.String WILDCARD_QUESTION_MARK
      Constant for the wildcard interrogation mark "?".

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static int countMatches​(java.lang.String regexPattern, java.lang.String text)
      Count how many times the given text is matching and returns the result.
      static boolean isMatching​(java.lang.String regexPattern, java.lang.String text)
      Checks if the given regular expression pattern is matching with the given text.
      static java.lang.String replaceWildcardsWithRE​(java.lang.String queryString)
      Replaces the normal wildcards in the given String with the corresponding regular expression wildcards.
      static java.lang.String wildcardCriterionSQL​(java.lang.String query)
      Replaces the query with the wildcards asterisk "*" and interrogation mark "?"

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • VALID_CHARS_IN_FILENAME

        public static final java.lang.String VALID_CHARS_IN_FILENAME
        Regular expression class for the valid characters in a filename. Current value:"[a-zA-Z0-9._-]"
        See Also:
        Constant Field Values

      • WILDCARD_ASTERISK

        public static final java.lang.String WILDCARD_ASTERISK
        Constant for the wildcard asterisk "*". Current value:"*"
        See Also:
        Constant Field Values

      • WILDCARD_MANYCHARS_RE

        public static final java.lang.String WILDCARD_MANYCHARS_RE
        Regular expression for many characters in the filename. Current value:".*"
        See Also:
        Constant Field Values

      • WILDCARD_ONECHAR_RE

        public static final java.lang.String WILDCARD_ONECHAR_RE
        Regular expression for exactly on character in the filename. Current value:"[a-zA-Z0-9._-]{1}"
        See Also:
        Constant Field Values

      • WILDCARD_QUESTION_MARK

        public static final java.lang.String WILDCARD_QUESTION_MARK
        Constant for the wildcard interrogation mark "?". Current value:"?"
        See Also:
        Constant Field Values

    • Method Detail

      • countMatches

        public static int countMatches​(java.lang.String regexPattern,
                               java.lang.String text)
        Count how many times the given text is matching and returns the result.
        Parameters:
        regexPattern - the regular expression pattern
        text - the text to check if it matches
        Returns:
        the count of how many times the given text is matching

      • isMatching

        public static boolean isMatching​(java.lang.String regexPattern,
                                 java.lang.String text)
        Checks if the given regular expression pattern is matching with the given text.
        Parameters:
        regexPattern - the regular expression pattern
        text - the text to check if it matches
        Returns:
        true if the given text is matching otherwise false

      • replaceWildcardsWithRE

        public static java.lang.String replaceWildcardsWithRE​(java.lang.String queryString)
        Replaces the normal wildcards in the given String with the corresponding regular expression wildcards.
        Parameters:
        queryString - The String to format.
        Returns:
        Returns the formatted String as a regular expression for search.

      • wildcardCriterionSQL

        public static java.lang.String wildcardCriterionSQL​(java.lang.String query)
        Replaces the query with the wildcards asterisk "*" and interrogation mark "?" with the corresponding wildcard from SQL.
        Parameters:
        query - The String to replace the wildcards.
        Returns:
        The String with the new wildcards from SQL "%" and "_".