Examples of org.apache.oro.text.GlobCompiler

org.apache.oro.text.GlobCompiler
The GlobCompiler class will compile a glob expression into a Perl5Pattern that may be used to match patterns in conjunction with Perl5Matcher. Rather than create extra GlobMatcher and GlobPattern classes tailored to the task of matching glob expressions, we have simply reused the Perl5 regular expression classes from org.apache.oro.text.regex by making GlobCompiler translate a glob expression into a Perl5 expression that is compiled by a Perl5Compiler instance internal to the GlobCompiler.
Because there are various similar glob expression syntaxes, GlobCompiler tries to provide a small amount of customization by providing the {@link #STAR_CANNOT_MATCH_NULL_MASK}and {@link #QUESTION_MATCHES_ZERO_OR_ONE_MASK} compilation options.
The GlobCompiler expression syntax is based on Unix shell glob expressions but should be usable to simulate Win32 wildcards. The following syntax is supported:
- * - Matches zero or more instances of any character. If the STAR_CANNOT_MATCH_NULL_MASK option is used, * matches one or more instances of any character.
- ? - Matches one instance of any character. If the QUESTION_MATCHES_ZERO_OR_ONE_MASK option is used, ? matches zero or one instances of any character.
- [...] - Matches any of characters enclosed by the brackets. * and ? lose their special meanings within a character class. Additionaly if the first character following the opening bracket is a ! or a ^, then any character not in the character class is matched. A - between two characters can be used to denote a range. A - at the beginning or end of the character class matches itself rather than referring to a range. A ] immediately following the opening [ matches itself rather than indicating the end of the character class, otherwise it must be escaped with a backslash to refer to itself.
- \ - A backslash matches itself in most situations. But when a special character such as a * follows it, a backslash escapes the character, indicating that the special chracter should be interpreted as a normal character instead of its special meaning.
- All other characters match themselves.
Please remember that the when you construct a Java string in Java code, the backslash character is itself a special Java character, and it must be double backslashed to represent single backslash in a regular expression. @version @version@ @since 1.0 @see org.apache.oro.text.regex.PatternCompiler @see org.apache.oro.text.regex.Perl5Matcher

            this.urlPattern = urlPattern;
            this.pattern = null;


            try
            {
                PatternCompiler compiler = new GlobCompiler();
                this.pattern = compiler.compile(this.urlPattern);
            }
            catch (Exception e)
            {
                log.error("Invalid url pattern: " + this.urlPattern);
            }

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      }
    }
  }
  public void setGlob(String mask) {
    // would be better to get them from Avalon or so?
   PatternCompiler globCompiler = new GlobCompiler();
    if (mask != null){
      try {
        this.regexPattern = globCompiler.compile(mask);
      } catch (MalformedPatternException e){
        this.regexPattern = null;
      }
    }
  }

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        private Boolean exact;
        
        public GlobMatcher(String expression) throws PatternSyntaxException {
            this.expression = expression;
            try {
                pattern = new GlobCompiler().compile(expression);
            } catch (MalformedPatternException e) {
                throw new PatternSyntaxException(e.getMessage(), expression, 0);
            }
        }

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            if( value != null && 0 < value.length() && !STR_GLOBSTAR.equals( value ) )
            {
                try
                {
                    PatternCompiler pc = new GlobCompiler();


                    String[] ptrns = StringUtils.split( value, STR_COMMA );


                    result = new Pattern[ptrns.length];


                    for( int n = 0; n < ptrns.length; n++ )
                    {
                        result[n] = pc.compile( ptrns[n] );
                    }
                }
                catch( MalformedPatternException e )
                {
                    throw new PluginException( "Parameter " + name + " has a malformed pattern: " + e.getMessage() );

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    // FIXME: parsers should be pooled for better performance.
    @SuppressWarnings("unchecked")
    private void initialize()
    {
        PatternCompiler compiler         = new GlobCompiler();
        List<Pattern>   compiledpatterns;


        //
        //  We cache compiled patterns in the engine, since their creation is
        //  really expensive
        //
        compiledpatterns = (List<Pattern>)m_engine.getAttribute( INLINE_IMAGE_PATTERNS );


        if( compiledpatterns == null )
        {
            compiledpatterns = new ArrayList<Pattern>(20);
            Collection< String > ptrns = m_engine.getAllInlinedImagePatterns();


            //
            //  Make them into Regexp Patterns.  Unknown patterns
            //  are ignored.
            //
            for( Iterator< String > i = ptrns.iterator(); i.hasNext(); )
            {
                try
                {
                    compiledpatterns.add( compiler.compile( i.next(),
                                                            GlobCompiler.DEFAULT_MASK|GlobCompiler.READ_ONLY_MASK ) );
                }
                catch( MalformedPatternException e )
                {
                    log.error("Malformed pattern in properties: ", e );

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            this.urlPattern = urlPattern;
            this.pattern = null;


            try
            {
                PatternCompiler compiler = new GlobCompiler();
                this.pattern = compiler.compile(this.urlPattern);
            }
            catch (Exception e)
            {
                log.error("Invalid url pattern: " + this.urlPattern);
            }

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