Example usage for java.util.regex Matcher group

Introduction

In this page you can find the example usage for java.util.regex Matcher group.

Prototype

public String group(String name)

Source Link

Document

Returns the input subsequence captured by the given named-capturing group during the previous match operation.

Usage

From source file:Main.java

public static String regexText(String source, String regex, int group) {
    Pattern pattern = Pattern.compile(regex);
    Matcher matcher = pattern.matcher(source);
    boolean b = matcher.find();
    if (b) {//from  w  w  w.j  a v a  2  s.  co  m
        return matcher.group(group);
    }
    return null;
}

From source file:Main.java

public static String parseOptionalStringAttr(String line, Pattern pattern) {
    Matcher matcher = pattern.matcher(line);
    if (matcher.find() && matcher.groupCount() == 1) {
        return matcher.group(1);
    }/*from w ww. j a v  a 2s  . com*/
    return null;
}

From source file:Main.java

public static String uuidToString(UUID uuid) {
    String longUUID = uuid.toString();
    Pattern pattern = Pattern.compile("0000(.{4})-0000-1000-8000-00805f9b34fb", Pattern.CASE_INSENSITIVE);
    Matcher matcher = pattern.matcher(longUUID);
    if (matcher.matches()) {
        // 16 bit UUID
        return matcher.group(1);
    } else {//from   www.java2 s .  c  o m
        return longUUID;
    }
}

From source file:Main.java

public static String getYoutubeVideoId(String youtubeUrl) {
    String video_id = "";
    if (youtubeUrl != null && youtubeUrl.trim().length() > 0 && youtubeUrl.startsWith("http")) {

        String expression = "^.*((youtu.be" + "\\/)"
                + "|(v\\/)|(\\/u\\/w\\/)|(embed\\/)|(watch\\?))\\??v?=?([^#\\&\\?]*).*"; // var regExp = /^.*((youtu.be\/)|(v\/)|(\/u\/\w\/)|(embed\/)|(watch\?))\??v?=?([^#\&\?]*).*/;
        CharSequence input = youtubeUrl;
        Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
        Matcher matcher = pattern.matcher(input);
        if (matcher.matches()) {
            String groupIndex1 = matcher.group(7);
            if (groupIndex1 != null && groupIndex1.length() == 11)
                video_id = groupIndex1;/*from  w ww .  ja v a2s.c  o m*/
        }
    }
    return video_id;
}

From source file:cn.wanghaomiao.seimi.utils.StrFormatUtil.java

public static String parseCharset(String target) {
    Matcher matcher = charsetPattern.matcher(target);
    if (matcher.find()) {
        return matcher.group(1);
    }/*  www. java 2  s  .  co m*/
    return "";
}

From source file:Main.java

/**
 * Remove version information from given objid.
 *
 * @param objid The objid.// www  .  j  a va  2s . c  om
 * @return The objid without version information.
 */
public static String getObjidWithoutVersion(final String objid) {

    String result = objid;
    final Matcher m = PATTERN_ID_WITHOUT_VERSION.matcher(objid);
    if (m.find()) {
        result = m.group(1);
    }
    return result;
}

From source file:Main.java

public static <T extends Collection<String>> T findAll(String regex, String content, int group, T collection) {
    Matcher matcher = Pattern.compile(regex, Pattern.MULTILINE).matcher(content);
    while (matcher.find()) {
        collection.add(matcher.group(group));
    }/*ww w  .ja  va2  s. c o m*/
    return collection;
}

From source file:Main.java

public static CharSequence[] parseDescription(CharSequence string) {
    Matcher matcher = PAT_ATLASQUEST.matcher(string);
    if (matcher.matches())
        return new CharSequence[] { "LB" + matcher.group(2).trim(), matcher.group(1).trim() };
    return new CharSequence[] { string, "" };
}

From source file:Main.java

/**
 * Returns local name of the root element of the XML document represented
 * by the given string, or <code>null</code>, when the given string does
 * not contain valid XML.// www .  ja  v a  2s .c  om
 * @param s
 *       XML string.
 * @return
 *       root element local name, or <code>null</code> when it could not be determined.
 */
public static String rootElementName(String s) {
    if (s == null) {
        return null;
    }
    Matcher matcher = ROOT_ELEMENT_PATTERN.matcher(s);
    return (matcher.find() && (matcher.start() == 0)) ? matcher.group(1) : null;
}

From source file:Main.java

/**
 * Swap the size of a sized image url, returning the new url.
 * //  ww  w  .j  a va  2  s . c  o m
 * Sized image urls encode the image (jpg, jpeg or png) with the image size at the suffix of the url.
 * 
 * For example: http://www.example.com/image_50.jpg With replacement 100 would return: http://www.example.com/image_100.jpg
 * 
 * @param url The sized image url.
 * @param size The new size of the image
 */
public static String swapSizedImageUrlSize(String url, int size) {
    if (url == null)
        throw new IllegalArgumentException("url cannot be null");
    Matcher matcher = SIZED_IMAGE_URL_PATTERN.matcher(url);
    if (!matcher.matches())
        return url;
    return matcher.group(1) + size + "." + matcher.group(2);
}