Example usage for java.util.regex Pattern matcher

Introduction

In this page you can find the example usage for java.util.regex Pattern matcher.

Prototype

public Matcher matcher(CharSequence input)

Source Link

Document

Creates a matcher that will match the given input against this pattern.

Usage

From source file:Main.java

private static void match(String REGEX, String INPUT) {
    Pattern p = Pattern.compile(REGEX);
    Matcher m = p.matcher(INPUT);
    int count = 0;

    while (m.find()) {
        count++;/*  ww w  . j  av a2  s.  c om*/
        System.out.println("\nMatch number: " + count);
        System.out.println("start() : " + m.start());
        System.out.println("end()   : " + m.end());
        System.out.println("group() : " + m.group());
    }
}

From source file:MatcherResetExample.java

public static void test() {
    Pattern p = Pattern.compile("\\d");
    Matcher m1 = p.matcher("01234");

    while (m1.find()) {
        System.out.println("\t\t" + m1.group());
    }/*from w  w  w  .  j a v a2s .  co m*/
    m1.reset();
    System.out.println("After resetting the Matcher");
    while (m1.find()) {
        System.out.println("\t\t" + m1.group());
    }
}

From source file:Main.java

private static String runSubRegex(String regex, String tag) {
    Pattern p = Pattern.compile(regex);
    Matcher matcher = p.matcher(tag);
    if (matcher.find()) {
        return matcher.group(1);
    }//www  . j ava2 s  .  c  o  m
    return null;
}

From source file:PatternMethodExample.java

public static void reusePatternMethodExample() {
    Pattern p = Pattern.compile("\\d");
    Matcher matcher = p.matcher("5");
    boolean isOk = matcher.matches();
    System.out.println("original pattern matches " + isOk);

    String tmp = p.pattern();//from w ww .j a va  2  s  . c  o m
    Pattern p2 = Pattern.compile(tmp);
    matcher = p.matcher("5");
    isOk = matcher.matches();
    System.out.println("second pattern matches " + isOk);
}

From source file:Main.java

public static CharSequence removeDuplicateWhitespace(CharSequence inputStr) {
    String patternStr = "\\s+";
    String replaceStr = " ";
    Pattern pattern = Pattern.compile(patternStr);
    Matcher matcher = pattern.matcher(inputStr);
    return matcher.replaceAll(replaceStr);
}

From source file:MatcherResetCharSequenceExample.java

public static void test() {
    String output = "";
    Pattern p = Pattern.compile("\\d");
    Matcher m1 = p.matcher("01234");

    while (m1.find()) {
        System.out.println("\t\t" + m1.group());
    }//from  w  ww  . j  a v a 2 s .  c  o m
    //now reset the matcher with new data
    m1.reset("56789");
    System.out.println("After resetting the Matcher");
    //iterate through the matcher
    while (m1.find()) {
        System.out.println("\t\t" + m1.group());
    }
}

From source file:Main.java

public static String find(String patternStr, CharSequence input) {
    Pattern pattern = Pattern.compile(patternStr);
    Matcher matcher = pattern.matcher(input);
    if (matcher.find()) {
        return matcher.group();
    }// w w w.j a  v  a 2s .  c  o m
    return null;
}

From source file:Main.java

public static String escapeRE(String str) {
    Pattern escaper = Pattern.compile("([^a-zA-z0-9])");
    return escaper.matcher(str).replaceAll("\\\\$1");
}

From source file:Main.java

public static int getNumber(String s1) throws Exception {
    Pattern pattern = Pattern.compile("([\\-0-9]*)[,]*.*");
    Matcher m = pattern.matcher(s1);
    if (m.find()) {
        return Integer.parseInt(m.group(1));
    }/*from www  .  j a v  a  2s.  c o  m*/

    throw new Exception("Not valid input");
}

From source file:Main.java

public static StringBuffer removePatternContents(String defStr, Pattern pat) {
    Matcher mat = pat.matcher(defStr);
    StringBuffer sb = new StringBuffer();
    while (mat.find()) {
        mat.appendReplacement(sb, " ");
    }//from ww w .j  av  a2s  .  c  om
    mat.appendTail(sb);
    return sb;
}