Example usage for java.util.regex Pattern compile

Introduction

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

Prototype

public static Pattern compile(String regex)

Source Link

Document

Compiles the given regular expression into a pattern.

Usage

From source file:DirList3.java

public static void main(final String[] args) {
    File path = new File(".");
    String[] list;//from  w  w w .j  ava2 s.co m
    if (args.length == 0)
        list = path.list();
    else
        list = path.list(new FilenameFilter() {
            private Pattern pattern = Pattern.compile(args[0]);

            public boolean accept(File dir, String name) {
                return pattern.matcher(new File(name).getName()).matches();
            }
        });
    Arrays.sort(list, new AlphabeticComparator());
    for (int i = 0; i < list.length; i++)
        System.out.println(list[i]);
}

From source file:Main.java

public static void main(String[] arguments) throws Exception {
    StringBuffer output = new StringBuffer();

    FileReader file = new FileReader("a.htm");
    BufferedReader buff = new BufferedReader(file);
    boolean eof = false;
    while (!eof) {
        String line = buff.readLine();
        if (line == null)
            eof = true;// w w  w. j  av  a  2  s . c  om
        else
            output.append(line + "\n");
    }
    buff.close();

    String page = output.toString();
    Pattern pattern = Pattern.compile("<a.+href=\"(.+?)\"");
    Matcher matcher = pattern.matcher(page);
    while (matcher.find()) {
        System.out.println(matcher.group(1));
    }
}

From source file:TestRegularExpression.java

public static void main(String[] args) {
    if (args.length < 2) {
        System.out.println("Usage:\n" + "java TestRegularExpression " + "characterSequence regularExpression+");
        System.exit(0);//from w  w w.  j a va  2 s.  com
    }
    System.out.println("Input: \"" + args[0] + "\"");
    for (int i = 1; i < args.length; i++) {
        System.out.println("Regular expression: \"" + args[i] + "\"");
        Pattern p = Pattern.compile(args[i]);
        Matcher m = p.matcher(args[0]);
        while (m.find()) {
            System.out.println("Match \"" + m.group() + "\" at positions " + m.start() + "-" + (m.end() - 1));
        }
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    // Create matcher on file
    Pattern pattern = Pattern.compile("pattern");
    Matcher matcher = pattern.matcher(fromFile("infile.txt"));

    // Find all matches
    while (matcher.find()) {
        // Get the matching string
        String match = matcher.group();
    }//w ww  .j  av a2s .c om
}

From source file:RegExTest.java

public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    System.out.println("Enter pattern: ");
    String patternString = in.nextLine();

    Pattern pattern = null;/*  www  . j  av  a  2 s. c  o m*/
    try {
        pattern = Pattern.compile(patternString);
    } catch (PatternSyntaxException e) {
        System.out.println("Pattern syntax error");
        System.exit(1);
    }

    while (true) {
        System.out.println("Enter string to match: ");
        String input = in.nextLine();
        if (input == null || input.equals(""))
            return;
        Matcher matcher = pattern.matcher(input);
        if (matcher.matches()) {
            System.out.println("Match");
            int g = matcher.groupCount();
            if (g > 0) {
                for (int i = 0; i < input.length(); i++) {
                    for (int j = 1; j <= g; j++)
                        if (i == matcher.start(j))
                            System.out.print('(');
                    System.out.print(input.charAt(i));
                    for (int j = 1; j <= g; j++)
                        if (i + 1 == matcher.end(j))
                            System.out.print(')');
                }
                System.out.println();
            }
        } else
            System.out.println("No match");
    }
}

From source file:SplitDemo2.java

public static void main(String[] args) {
    Pattern p = Pattern.compile(REGEX);
    String[] items = p.split(INPUT);
    for (String s : items) {
        System.out.println(s);//from  www.j ava  2 s . c  o  m
    }
}

From source file:MatcherDemo.java

public static void main(String[] args) {
    Pattern p = Pattern.compile(REGEX);
    Matcher m = p.matcher(INPUT); // get a matcher object
    int count = 0;
    while (m.find()) {
        count++;/*from   w  ww  .  j ava2s . co m*/
        System.out.println("Match number " + count);
        System.out.println("start(): " + m.start());
        System.out.println("end(): " + m.end());
    }
}

From source file:MatchesLooking.java

public static void main(String[] args) {

    // Initialize
    pattern = Pattern.compile(REGEX);
    matcher = pattern.matcher(INPUT);/* w ww  . java  2  s . com*/

    System.out.println("Current REGEX is: " + REGEX);
    System.out.println("Current INPUT is: " + INPUT);

    System.out.println("lookingAt(): " + matcher.lookingAt());
    System.out.println("matches(): " + matcher.matches());

}

From source file:SplitTest.java

public static void main(String[] argv) {
    Pattern p = Pattern.compile(REGEX);
    String[] items = p.split(INPUT);
    for (int i = 0; i < items.length; i++) {
        System.out.println(items[i]);
    }/*w  w  w  . j  ava  2 s  .co  m*/
}

From source file:GetParen0.java

public static void main(String[] args) {
    Pattern myRE = Pattern.compile("d.*ian");
    Matcher matcher = myRE.matcher("darwinian pterodactyls soared over the devonian space");
    matcher.lookingAt();//from   w w w.  j a va  2 s . c  om
    String result = matcher.group(0);
    System.out.println(result);
}