Package org.eclipse.nebula.widgets.xviewer.util.internal

Class StringMatcher

java.lang.Object
org.eclipse.nebula.widgets.xviewer.util.internal.StringMatcher
public class StringMatcher
extends java.lang.Object
Copied from JDT UI A string pattern matcher. Supports '*' and '?' wildcards.

  • Nested Class Summary

    Nested Classes 
    Modifier and Type Class Description
    static class  StringMatcher.Position  

  • Field Summary

    Fields 
    Modifier and Type Field Description
    protected int fBound  
    protected boolean fHasLeadingStar  
    protected boolean fHasTrailingStar  
    protected boolean fIgnoreCase  
    protected boolean fIgnoreWildCards  
    protected int fLength  
    protected java.lang.String fPattern  
    protected java.lang.String[] fSegments  
    protected static char fSingleWildCard  

  • Constructor Summary

    Constructors 
    Constructor Description
    StringMatcher​(java.lang.String pattern, boolean ignoreCase, boolean ignoreWildCards)
    StringMatcher constructor takes in a String object that is a simple pattern.

  • Method Summary

    Modifier and Type Method Description
    StringMatcher.Position find​(java.lang.String text, int start, int end)
    Find the first occurrence of the pattern between startend(exclusive).
    boolean match​(java.lang.String text)
    match the given text with the pattern
    boolean match​(java.lang.String text, int start, int end)
    Given the starting (inclusive) and the ending (exclusive) positions in the text, determine if the given substring matches with aPattern
    protected int posIn​(java.lang.String text, int start, int end)  
    protected int regExpPosIn​(java.lang.String text, int start, int end, java.lang.String p)  
    protected boolean regExpRegionMatches​(java.lang.String text, int tStart, java.lang.String p, int pStart, int plen)  
    protected int textPosIn​(java.lang.String text, int start, int end, java.lang.String p)  

    Methods inherited from class java.lang.Object

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

  • Field Details

  • Constructor Details

    • StringMatcher

      public StringMatcher​(java.lang.String pattern, boolean ignoreCase, boolean ignoreWildCards)
      StringMatcher constructor takes in a String object that is a simple pattern. The pattern may contain '*' for 0 and many characters and '?' for exactly one character. Literal '*' and '?' characters must be escaped in the pattern e.g., "\*" means literal "*", etc. Escaping any other character (including the escape character itself), just results in that character in the pattern. e.g., "\a" means "a" and "\\" means "\" If invoking the StringMatcher with string literals in Java, don't forget escape characters are represented by "\\".
      Parameters:
      pattern - the pattern to match text against
      ignoreCase - if true, case is ignored
      ignoreWildCards - if true, wild cards and their escape sequences are ignored (everything is taken literally).

  • Method Details

    • find

      public StringMatcher.Position find​(java.lang.String text, int start, int end)
      Find the first occurrence of the pattern between startend(exclusive).
      Parameters:
      text - the String object to search in
      start - the starting index of the search range, inclusive
      end - the ending index of the search range, exclusive
      Returns:
      an StringMatcher.Position object that keeps the starting (inclusive) and ending positions (exclusive) of the first occurrence of the pattern in the specified range of the text; return null if not found or subtext is empty (start==end). A pair of zeros is returned if pattern is empty string Note that for pattern like "*abc*" with leading and trailing stars, position of "abc" is returned. For a pattern like"*??*" in text "abcdf", (1,3) is returned

    • match

      public boolean match​(java.lang.String text)
      match the given text with the pattern
      Parameters:
      text - a String object
      Returns:
      true if matched eitherwise false

    • match

      public boolean match​(java.lang.String text, int start, int end)
      Given the starting (inclusive) and the ending (exclusive) positions in the text, determine if the given substring matches with aPattern
      Parameters:
      text - a String object that contains the substring to match
      start - marks the starting position (inclusive) of the substring
      end - marks the ending index (exclusive) of the substring
      Returns:
      true if the specified portion of the text matches the pattern

    • posIn

      protected int posIn​(java.lang.String text, int start, int end)
      Parameters:
      text - a string which contains no wildcard
      start - the starting index in the text for search, inclusive
      end - the stopping point of search, exclusive
      Returns:
      the starting index in the text of the pattern , or -1 if not found

    • regExpPosIn

      protected int regExpPosIn​(java.lang.String text, int start, int end, java.lang.String p)
      Parameters:
      text - a simple regular expression that may only contain '?'(s)
      start - the starting index in the text for search, inclusive
      end - the stopping point of search, exclusive
      p - a simple regular expression that may contains '?'
      Returns:
      the starting index in the text of the pattern , or -1 if not found

    • regExpRegionMatches

      protected boolean regExpRegionMatches​(java.lang.String text, int tStart, java.lang.String p, int pStart, int plen)

    • textPosIn

      protected int textPosIn​(java.lang.String text, int start, int end, java.lang.String p)
      Parameters:
      text - the string to match
      start - the starting index in the text for search, inclusive
      end - the stopping point of search, exclusive
      p - a string that has no wildcard
      Returns:
      the starting index in the text of the pattern , or -1 if not found