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Help with java regex

Hey, I struggled with this regex and I have no ideas. I have these types of strings (not all of them are here, but only these 2 types), and I need to extract the part between the th tags .

<th class="tip" title='manje'>manje</th>
<th class="tip" title='ne d.'>ne d.</th>
<th class="tip" title='manje'>manje</th>
<th class="tip" title='točno'>točno</th>
<th class="tip" title='više'>više</th>
<th class="tip" title='m./t.'>m./t.</th>
<th class="tip" title='v./t.'>v./t.</th>
<th class="tip">daje</th>
<th class="tip">X2</th>
<th class="tip">12</th>

I tried some combinations of bu, I get the value only if the th tag does not have this "title" attribute.

This template retrieves content only if the th tag does not have the "title" attribute:

Pattern pattern = Pattern.compile("<th class=\"tip\"[\\s*|[.]{0,20}]>(.*?)\\s*</th>");

It's the same:

Pattern patternType = Pattern.compile("<th class=\"tip\"[\\s*|[.]{0,20}]>(.*?)\\s*</th>");

Any suggestions? Tnx

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5 answers

Try the following:

Pattern pattern = Pattern.compile("<th class=\"tip\"[^>]*>(.*)</th>");
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Regular expressions are not suitable in all cases. Use Jsoup instead:

package so6235727;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class PrintContent {

  private static final String html = //
      "<th class=\"tip\" title='manje'>manje</th>\r\n" + //
      "<th class=\"tip\" title='ne d.'>ne d.</th>\r\n" + //
      "<th class=\"tip\" title='manje'>manje</th>\r\n" + //
      "<th class=\"tip\" title='točno'>točno</th>\r\n" + //
      "<th class=\"tip\" title='više'>više</th>\r\n" + //
      "<th class=\"tip\" title='m./t.'>m./t.</th>\r\n" + //
      "<th class=\"tip\" title='v./t.'>v./t.</th>\r\n" + //
      "<th class=\"tip\">daje</th>\r\n" + //
      "<th class=\"tip\">X2</th>\r\n" + //
      "<th class=\"tip\">12</th>\r\n";

  public static void main(String[] args) {
    Document jsoup = Jsoup.parse(html);
    Elements headings = jsoup.select("th.tip");
    for (Element element : headings) {
      System.out.println(element.text());
    }
  }
}

, ?

+5

:

Pattern pattern = Pattern.compile("<th[^>]*>(.*?)\\s*</th>");
0

, , , , :

Pattern pattern = Pattern.compile("(?<=<th .{0,100}>).*(?=</th>)");

1
I tried it and it doesn't work in any case: , :

import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Foo1 {
   private static final String FOO_TXT = "Foo1.txt";

   public static void main(String[] args) {
      Pattern pattern = Pattern.compile("(?<=<th .{0,100}>).*(?=</th>)");

      Scanner scan = new Scanner(Foo1.class.getResourceAsStream(FOO_TXT));
      while (scan.hasNextLine()) {
         String line = scan.nextLine();
         System.out.println("Line: " + line);
         Matcher match = pattern.matcher(line);
         if (match.find()) {
            System.out.println("Match: " + match.group());
         } else {
            System.out.println("No match found");
         }
      }
   }
}

, Foo1.txt .

0

, , / , / .

 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

public class Regex {

public static void test(String patternString) {
    System.out.println("Test with pattern: " + patternString);
    Pattern pattern = Pattern.compile(patternString);
    String[] testStrings = {"<th class=\"tip\" title='manje'>manje</th>", "<th class=\"tip\">daje</th>"};
    for (String testString : testStrings) {
        System.out.println("> Test on " + testString);
        Matcher matcher = pattern.matcher(testString);
        if (matcher.matches()) {
            System.out.println(">> number of matches in group = " + matcher.groupCount());
            for (int i = 1; i <= matcher.groupCount(); i++) {
                System.out.println(">>group " + i + " is " + matcher.group(i));
            }
        } else {
            System.out.println(">> no match");
        }
    }
    System.out.println("");
}

/**
 * @param args the command line arguments
 */
public static void main(String[] args) {
    test("<th class=\"tip\"[\\s*|[.]{0,20}]>(.*?)\\s*</th>"); // op
    test("<th[^>]*>(.*?)\\s*</th>"); // Billy Moon
    test("<th class=\"tip\"[^>]*>(.*)</th>"); // stuken.yuri
    test("(?<=<th .{0,100}>).*(?=</th>)"); // Hovercraft full of Eels
    test("(?:<th .{0,100}>).*(?:</th>)");
}
}

, Billy Moon stuken.yuri, OP Hovercraft. , . - Java 7 Windows 7.

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