Examples of org.apache.oro.text.perl.Perl5Util

org.apache.oro.text.perl.Perl5Util
ialization of input and output omitted while((line = input.readLine()) != null) { // First find the line with the string we want to substitute because // it is cheaper than blindly substituting each line. if(util.match("/HREF=\"description1.html\"/")) { line = util.substitute("s/description1\\.html/about1.html/", line); } output.println(line); }
A couple of things to remember when using this class are that the {@link #match match()} methods have the same meaning as{@link org.apache.oro.text.regex.Perl5Matcher#contains Perl5Matcher.contains()}and =~ m/pattern/ in Perl. The methods are named match to more closely associate them with Perl and to differentiate them from {@link org.apache.oro.text.regex.Perl5Matcher#matches Perl5Matcher.matches()}. A further thing to keep in mind is that the {@link MalformedPerl5PatternException} class is derived fromRuntimeException which means you DON'T have to catch it. The reasoning behind this is that you will detect your regular expression mistakes as you write and debug your program when a MalformedPerl5PatternException is thrown during a test run. However, we STRONGLY recommend that you ALWAYS catch MalformedPerl5PatternException whenever you deal with a DYNAMICALLY created pattern. Relying on a fatal MalformedPerl5PatternException being thrown to detect errors while debugging is only useful for dealing with static patterns, that is, actual pregenerated strings present in your program. Patterns created from user input or some other dynamic method CANNOT be relied upon to be correct and MUST be handled by catching MalformedPerl5PatternException for your programs to be robust.
Finally, as a convenience Perl5Util implements the {@link org.apache.oro.text.regex.MatchResult MatchResult} interface.The methods are merely wrappers which call the corresponding method of the last {@link org.apache.oro.text.regex.MatchResult MatchResult}found (which can be accessed with {@link #getMatch()} by a match orsubstitution (or even a split, but this isn't particularly useful). @author Daniel F. Savarese @version @version@ @since 1.0 @see MalformedPerl5PatternException @see org.apache.oro.text.PatternCache @see org.apache.oro.text.PatternCacheLRU @see org.apache.oro.text.regex.MatchResult

   protected boolean isValidPath(String path) {
        if (path == null) {
            return false;
        }


        Perl5Util pathMatcher = new Perl5Util();


        if (!pathMatcher.match(PATH_PATTERN, path)) {
            return false;
        }


        //if (path.endsWith("/")) {
        //    return false;

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     *  <tr><td>p4.user</td><td>User</td></tr>
     *  </table>
     */
    public void init() {


        util = new Perl5Util();


        //Get default P4 settings from environment - Mark would have done something cool with
        //introspection here.....:-)
        String tmpprop;
        if ((tmpprop = getProject().getProperty("p4.port")) != null) {

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     * @param fields The search fields
     * @return A string
     */
    private String buildQuery(ArrayList<SearchField> fields)
    {
      Perl5Util util = new Perl5Util();
      
      String query = "";
      
      // Loop through the fields building the search query as we go.
      for (SearchField field : fields)
      {  
        // if the field is empty, then skip it and try a later one.
        if (field.getQuery() == null)
          continue;
        
        // Add the conjunction for everything but the first field.
        if (fields.indexOf(field) > 0)
          query += " " + field.getConjunction() + " ";
            
        // Two cases, one if a specific search field is specified or if 
        // ANY is given then just a general search is performed.
            if ("ANY".equals(field.getField()))
            {
              // No field specified, 
              query += "(" + field.getQuery() + ")";
            }
            else
            {   
              // Specific search field specified, add the field specific field.
              
              // Replace singe quote's with double quotes (only if they match)
              String subquery = util.substitute("s/\'(.*)\'/\"$1\"/g", field.getQuery());
              
              // If the field is not quoted ...
              if (!util.match("/\".*\"/", subquery))
                {
                // ... then seperate each word and re-specify the search field.
                    subquery = util.substitute("s/ / " + field.getField() + ":/g", subquery);
                }
              
              // Put the subquery into the general query
              query += "("+field.getField()+":"+subquery+")";
            }

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     * regular expressions.
     * @testng.test groups = "functest", "util"
     */
    public void testFindScript()
    {
        Perl5Util util = new Perl5Util();
        String expr = "/(?:<script.*?>)((\\n|.)*?)(?:<\\/script>)/";
        
        assertTrue(util.match(expr, JAVASCRIPT_NOCOMMENT));
        
        MatchResult result = util.getMatch();
        assertNotNull(result);
        assertEquals(3, result.groups());
        assertEquals("if (document.updateObject) { document.updateObject.progressFinished('updateId');}",
                result.group(1));
    }

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     * regular expressions.
     * @testng.test groups = "functest", "util"
     */
    public void testFindMultipleScripts()
    {
        Perl5Util util = new Perl5Util();
        String expr = "/(?:<script.*?>)((\\n|.)*?)(?:<\\/script>)/";
        
        assertTrue(util.match(expr, MULTI_JAVASCRIPT_NOCOMMENT));
        
        MatchResult result = util.getMatch();
        assertNotNull(result);
        assertEquals(3, result.groups());
        assertEquals("if (document.updateObject) { document.updateObject.progressFinished('updateId');}"
                + "if (document.updateObject) { document.updateObject.progressFinished('updateId');}",
                result.group(1));

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        {
            contents += "\n";
        }


        // Convert most markup.
        Perl5Util perl = new Perl5Util();
        for (int i = 0; i < perLineREs.length; i += 2)
        {
            contents = perl.substitute(makeSubstRE(i), contents);
        }


        // Convert closing curlies.
        if (perl.match("m/javascript/i", contents))
        {
            // ASSUMPTION: JavaScript is indented, WM is not.
            contents = perl.substitute("s/\n}/\n#end/g", contents);
        }
        else
        {
            contents = perl.substitute("s/(\n\\s*)}/$1#end/g", contents);
            contents = perl.substitute("s/#end\\s*\n\\s*#else/#else/g",
                                       contents);
        }


        return contents;
    }

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    public boolean isValid(String email) {
        if (email == null) {
            return false;
        }


        Perl5Util matchAsciiPat = new Perl5Util();
        if (!matchAsciiPat.match(LEGAL_ASCII_PATTERN, email)) {
            return false;
        }


        // Check the whole email address structure
        Perl5Util emailMatcher = new Perl5Util();
        if (!emailMatcher.match(EMAIL_PATTERN, email)) {
            return false;
        }


        if (email.endsWith(".")) {
            return false;
        }


        if (!isValidUser(emailMatcher.group(1))) {
            return false;
        }


        if (!isValidDomain(emailMatcher.group(2))) {
            return false;
        }


        return true;
    }

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     * Returns true if the domain component of an email address is valid.
     * @param domain being validatied.
     */
    protected boolean isValidDomain(String domain) {
        boolean symbolic = false;
        Perl5Util ipAddressMatcher = new Perl5Util();


        if (ipAddressMatcher.match(IP_DOMAIN_PATTERN, domain)) {
            if (!isValidIpAddress(ipAddressMatcher)) {
                return false;
            }
        } else {
            // Domain is symbolic name
            Perl5Util domainMatcher = new Perl5Util();
            symbolic = domainMatcher.match(DOMAIN_PATTERN, domain);
        }


        if (symbolic) {
            if (!isValidSymbolicDomain(domain)) {
                return false;

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    /**
     * Returns true if the user component of an email address is valid.
     * @param user being validated
     */
    protected boolean isValidUser(String user) {
        Perl5Util userMatcher = new Perl5Util();
        return userMatcher.match(USER_PATTERN, user);
    }

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     */
    protected boolean isValidSymbolicDomain(String domain) {
        String[] domainSegment = new String[10];
        boolean match = true;
        int i = 0;
        Perl5Util atomMatcher = new Perl5Util();


        while (match) {
            match = atomMatcher.match(ATOM_PATTERN, domain);
            if (match) {
                domainSegment[i] = atomMatcher.group(1);
                int l = domainSegment[i].length() + 1;
                domain =
                        (l >= domain.length())
                        ? ""
                        : domain.substring(l);

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