Java'daki URL'lerle eşleşecek normal ifade

Normal ifadelerle çalışırken RegexBuddy kullanıyorum. Kitaplığından normal ifadeyi URL'lerle eşleşecek şekilde kopyaladım. RegexBuddy'de başarıyla test ettim. Ancak, Java Stringaroması olarak kopyalayıp Java koduna yapıştırdığımda çalışmıyor. Aşağıdaki sınıf yazdırır false:

public class RegexFoo {

    public static void main(String[] args) {
        String regex = "\\b(https?|ftp|file)://[-A-Z0-9+&@#/%?=~_|!:,.;]*[-A-Z0-9+&@#/%=~_|]";
        String text = "http://google.com";
        System.out.println(IsMatch(text,regex));
}

    private static boolean IsMatch(String s, String pattern) {
        try {
            Pattern patt = Pattern.compile(pattern);
            Matcher matcher = patt.matcher(s);
            return matcher.matches();
        } catch (RuntimeException e) {
        return false;
    }       
}   
}

Neyi yanlış yaptığımı bilen var mı?

Bunun yerine aşağıdaki normal ifade dizesini deneyin. Testiniz muhtemelen büyük / küçük harfe duyarlı bir şekilde yapılmıştır. Küçük harfli alfaları ve uygun bir dize başlangıç ​​yer tutucusunu ekledim.

String regex = "^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";

Bu da işe yarar:

String regex = "\\b(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";

Not:

String regex = "<\\b(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]>"; // matches <http://google.com>

String regex = "<^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]>"; // does not match <http://google.com>

Bunu şimdi yapmanın en iyi yolu:

android.util.Patterns.WEB_URL.matcher(linkUrl).matches();

DÜZENLEME: Kodu Patternsdan https://github.com/android/platform_frameworks_base/blob/master/core/java/android/util/Patterns.java :

/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.util;

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

/**
 * Commonly used regular expression patterns.
 */
public class Patterns {
    /**
     *  Regular expression to match all IANA top-level domains.
     *  List accurate as of 2011/07/18.  List taken from:
     *  http://data.iana.org/TLD/tlds-alpha-by-domain.txt
     *  This pattern is auto-generated by frameworks/ex/common/tools/make-iana-tld-pattern.py
     *
     *  @deprecated Due to the recent profileration of gTLDs, this API is
     *  expected to become out-of-date very quickly. Therefore it is now
     *  deprecated.
     */
    @Deprecated
    public static final String TOP_LEVEL_DOMAIN_STR =
        "((aero|arpa|asia|a[cdefgilmnoqrstuwxz])"
        + "|(biz|b[abdefghijmnorstvwyz])"
        + "|(cat|com|coop|c[acdfghiklmnoruvxyz])"
        + "|d[ejkmoz]"
        + "|(edu|e[cegrstu])"
        + "|f[ijkmor]"
        + "|(gov|g[abdefghilmnpqrstuwy])"
        + "|h[kmnrtu]"
        + "|(info|int|i[delmnoqrst])"
        + "|(jobs|j[emop])"
        + "|k[eghimnprwyz]"
        + "|l[abcikrstuvy]"
        + "|(mil|mobi|museum|m[acdeghklmnopqrstuvwxyz])"
        + "|(name|net|n[acefgilopruz])"
        + "|(org|om)"
        + "|(pro|p[aefghklmnrstwy])"
        + "|qa"
        + "|r[eosuw]"
        + "|s[abcdeghijklmnortuvyz]"
        + "|(tel|travel|t[cdfghjklmnoprtvwz])"
        + "|u[agksyz]"
        + "|v[aceginu]"
        + "|w[fs]"
        + "|(\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae|\u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0435|\u0440\u0444|\u0441\u0440\u0431|\u05d8\u05e2\u05e1\u05d8|\u0622\u0632\u0645\u0627\u06cc\u0634\u06cc|\u0625\u062e\u062a\u0628\u0627\u0631|\u0627\u0644\u0627\u0631\u062f\u0646|\u0627\u0644\u062c\u0632\u0627\u0626\u0631|\u0627\u0644\u0633\u0639\u0648\u062f\u064a\u0629|\u0627\u0644\u0645\u063a\u0631\u0628|\u0627\u0645\u0627\u0631\u0627\u062a|\u0628\u06be\u0627\u0631\u062a|\u062a\u0648\u0646\u0633|\u0633\u0648\u0631\u064a\u0629|\u0641\u0644\u0633\u0637\u064a\u0646|\u0642\u0637\u0631|\u0645\u0635\u0631|\u092a\u0930\u0940\u0915\u094d\u0937\u093e|\u092d\u093e\u0930\u0924|\u09ad\u09be\u09b0\u09a4|\u0a2d\u0a3e\u0a30\u0a24|\u0aad\u0abe\u0ab0\u0aa4|\u0b87\u0ba8\u0bcd\u0ba4\u0bbf\u0baf\u0bbe|\u0b87\u0bb2\u0b99\u0bcd\u0b95\u0bc8|\u0b9a\u0bbf\u0b99\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0bc2\u0bb0\u0bcd|\u0baa\u0bb0\u0bbf\u0b9f\u0bcd\u0b9a\u0bc8|\u0c2d\u0c3e\u0c30\u0c24\u0c4d|\u0dbd\u0d82\u0d9a\u0dcf|\u0e44\u0e17\u0e22|\u30c6\u30b9\u30c8|\u4e2d\u56fd|\u4e2d\u570b|\u53f0\u6e7e|\u53f0\u7063|\u65b0\u52a0\u5761|\u6d4b\u8bd5|\u6e2c\u8a66|\u9999\u6e2f|\ud14c\uc2a4\ud2b8|\ud55c\uad6d|xn\\-\\-0zwm56d|xn\\-\\-11b5bs3a9aj6g|xn\\-\\-3e0b707e|xn\\-\\-45brj9c|xn\\-\\-80akhbyknj4f|xn\\-\\-90a3ac|xn\\-\\-9t4b11yi5a|xn\\-\\-clchc0ea0b2g2a9gcd|xn\\-\\-deba0ad|xn\\-\\-fiqs8s|xn\\-\\-fiqz9s|xn\\-\\-fpcrj9c3d|xn\\-\\-fzc2c9e2c|xn\\-\\-g6w251d|xn\\-\\-gecrj9c|xn\\-\\-h2brj9c|xn\\-\\-hgbk6aj7f53bba|xn\\-\\-hlcj6aya9esc7a|xn\\-\\-j6w193g|xn\\-\\-jxalpdlp|xn\\-\\-kgbechtv|xn\\-\\-kprw13d|xn\\-\\-kpry57d|xn\\-\\-lgbbat1ad8j|xn\\-\\-mgbaam7a8h|xn\\-\\-mgbayh7gpa|xn\\-\\-mgbbh1a71e|xn\\-\\-mgbc0a9azcg|xn\\-\\-mgberp4a5d4ar|xn\\-\\-o3cw4h|xn\\-\\-ogbpf8fl|xn\\-\\-p1ai|xn\\-\\-pgbs0dh|xn\\-\\-s9brj9c|xn\\-\\-wgbh1c|xn\\-\\-wgbl6a|xn\\-\\-xkc2al3hye2a|xn\\-\\-xkc2dl3a5ee0h|xn\\-\\-yfro4i67o|xn\\-\\-ygbi2ammx|xn\\-\\-zckzah|xxx)"
        + "|y[et]"
        + "|z[amw])";

    /**
     *  Regular expression pattern to match all IANA top-level domains.
     *  @deprecated This API is deprecated. See {@link #TOP_LEVEL_DOMAIN_STR}.
     */
    @Deprecated
    public static final Pattern TOP_LEVEL_DOMAIN =
        Pattern.compile(TOP_LEVEL_DOMAIN_STR);

    /**
     *  Regular expression to match all IANA top-level domains for WEB_URL.
     *  List accurate as of 2011/07/18.  List taken from:
     *  http://data.iana.org/TLD/tlds-alpha-by-domain.txt
     *  This pattern is auto-generated by frameworks/ex/common/tools/make-iana-tld-pattern.py
     *
     *  @deprecated This API is deprecated. See {@link #TOP_LEVEL_DOMAIN_STR}.
     */
    @Deprecated
    public static final String TOP_LEVEL_DOMAIN_STR_FOR_WEB_URL =
        "(?:"
        + "(?:aero|arpa|asia|a[cdefgilmnoqrstuwxz])"
        + "|(?:biz|b[abdefghijmnorstvwyz])"
        + "|(?:cat|com|coop|c[acdfghiklmnoruvxyz])"
        + "|d[ejkmoz]"
        + "|(?:edu|e[cegrstu])"
        + "|f[ijkmor]"
        + "|(?:gov|g[abdefghilmnpqrstuwy])"
        + "|h[kmnrtu]"
        + "|(?:info|int|i[delmnoqrst])"
        + "|(?:jobs|j[emop])"
        + "|k[eghimnprwyz]"
        + "|l[abcikrstuvy]"
        + "|(?:mil|mobi|museum|m[acdeghklmnopqrstuvwxyz])"
        + "|(?:name|net|n[acefgilopruz])"
        + "|(?:org|om)"
        + "|(?:pro|p[aefghklmnrstwy])"
        + "|qa"
        + "|r[eosuw]"
        + "|s[abcdeghijklmnortuvyz]"
        + "|(?:tel|travel|t[cdfghjklmnoprtvwz])"
        + "|u[agksyz]"
        + "|v[aceginu]"
        + "|w[fs]"
        + "|(?:\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae|\u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0435|\u0440\u0444|\u0441\u0440\u0431|\u05d8\u05e2\u05e1\u05d8|\u0622\u0632\u0645\u0627\u06cc\u0634\u06cc|\u0625\u062e\u062a\u0628\u0627\u0631|\u0627\u0644\u0627\u0631\u062f\u0646|\u0627\u0644\u062c\u0632\u0627\u0626\u0631|\u0627\u0644\u0633\u0639\u0648\u062f\u064a\u0629|\u0627\u0644\u0645\u063a\u0631\u0628|\u0627\u0645\u0627\u0631\u0627\u062a|\u0628\u06be\u0627\u0631\u062a|\u062a\u0648\u0646\u0633|\u0633\u0648\u0631\u064a\u0629|\u0641\u0644\u0633\u0637\u064a\u0646|\u0642\u0637\u0631|\u0645\u0635\u0631|\u092a\u0930\u0940\u0915\u094d\u0937\u093e|\u092d\u093e\u0930\u0924|\u09ad\u09be\u09b0\u09a4|\u0a2d\u0a3e\u0a30\u0a24|\u0aad\u0abe\u0ab0\u0aa4|\u0b87\u0ba8\u0bcd\u0ba4\u0bbf\u0baf\u0bbe|\u0b87\u0bb2\u0b99\u0bcd\u0b95\u0bc8|\u0b9a\u0bbf\u0b99\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0bc2\u0bb0\u0bcd|\u0baa\u0bb0\u0bbf\u0b9f\u0bcd\u0b9a\u0bc8|\u0c2d\u0c3e\u0c30\u0c24\u0c4d|\u0dbd\u0d82\u0d9a\u0dcf|\u0e44\u0e17\u0e22|\u30c6\u30b9\u30c8|\u4e2d\u56fd|\u4e2d\u570b|\u53f0\u6e7e|\u53f0\u7063|\u65b0\u52a0\u5761|\u6d4b\u8bd5|\u6e2c\u8a66|\u9999\u6e2f|\ud14c\uc2a4\ud2b8|\ud55c\uad6d|xn\\-\\-0zwm56d|xn\\-\\-11b5bs3a9aj6g|xn\\-\\-3e0b707e|xn\\-\\-45brj9c|xn\\-\\-80akhbyknj4f|xn\\-\\-90a3ac|xn\\-\\-9t4b11yi5a|xn\\-\\-clchc0ea0b2g2a9gcd|xn\\-\\-deba0ad|xn\\-\\-fiqs8s|xn\\-\\-fiqz9s|xn\\-\\-fpcrj9c3d|xn\\-\\-fzc2c9e2c|xn\\-\\-g6w251d|xn\\-\\-gecrj9c|xn\\-\\-h2brj9c|xn\\-\\-hgbk6aj7f53bba|xn\\-\\-hlcj6aya9esc7a|xn\\-\\-j6w193g|xn\\-\\-jxalpdlp|xn\\-\\-kgbechtv|xn\\-\\-kprw13d|xn\\-\\-kpry57d|xn\\-\\-lgbbat1ad8j|xn\\-\\-mgbaam7a8h|xn\\-\\-mgbayh7gpa|xn\\-\\-mgbbh1a71e|xn\\-\\-mgbc0a9azcg|xn\\-\\-mgberp4a5d4ar|xn\\-\\-o3cw4h|xn\\-\\-ogbpf8fl|xn\\-\\-p1ai|xn\\-\\-pgbs0dh|xn\\-\\-s9brj9c|xn\\-\\-wgbh1c|xn\\-\\-wgbl6a|xn\\-\\-xkc2al3hye2a|xn\\-\\-xkc2dl3a5ee0h|xn\\-\\-yfro4i67o|xn\\-\\-ygbi2ammx|xn\\-\\-zckzah|xxx)"
        + "|y[et]"
        + "|z[amw]))";

    /**
     * Good characters for Internationalized Resource Identifiers (IRI).
     * This comprises most common used Unicode characters allowed in IRI
     * as detailed in RFC 3987.
     * Specifically, those two byte Unicode characters are not included.
     */
    public static final String GOOD_IRI_CHAR =
        "a-zA-Z0-9\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF";

    public static final Pattern IP_ADDRESS
        = Pattern.compile(
            "((25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9])\\.(25[0-5]|2[0-4]"
            + "[0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1]"
            + "[0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}"
            + "|[1-9][0-9]|[0-9]))");

    /**
     * RFC 1035 Section 2.3.4 limits the labels to a maximum 63 octets.
     */
    private static final String IRI
        = "[" + GOOD_IRI_CHAR + "]([" + GOOD_IRI_CHAR + "\\-]{0,61}[" + GOOD_IRI_CHAR + "]){0,1}";

    private static final String GOOD_GTLD_CHAR =
        "a-zA-Z\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF";
    private static final String GTLD = "[" + GOOD_GTLD_CHAR + "]{2,63}";
    private static final String HOST_NAME = "(" + IRI + "\\.)+" + GTLD;

    public static final Pattern DOMAIN_NAME
        = Pattern.compile("(" + HOST_NAME + "|" + IP_ADDRESS + ")");

    /**
     *  Regular expression pattern to match most part of RFC 3987
     *  Internationalized URLs, aka IRIs.  Commonly used Unicode characters are
     *  added.
     */
    public static final Pattern WEB_URL = Pattern.compile(
        "((?:(http|https|Http|Https|rtsp|Rtsp):\\/\\/(?:(?:[a-zA-Z0-9\\$\\-\\_\\.\\+\\!\\*\\'\\(\\)"
        + "\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2})){1,64}(?:\\:(?:[a-zA-Z0-9\\$\\-\\_"
        + "\\.\\+\\!\\*\\'\\(\\)\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2})){1,25})?\\@)?)?"
        + "(?:" + DOMAIN_NAME + ")"
        + "(?:\\:\\d{1,5})?)" // plus option port number
        + "(\\/(?:(?:[" + GOOD_IRI_CHAR + "\\;\\/\\?\\:\\@\\&\\=\\#\\~"  // plus option query params
        + "\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])|(?:\\%[a-fA-F0-9]{2}))*)?"
        + "(?:\\b|$)"); // and finally, a word boundary or end of
                        // input.  This is to stop foo.sure from
                        // matching as foo.su

    public static final Pattern EMAIL_ADDRESS
        = Pattern.compile(
            "[a-zA-Z0-9\\+\\.\\_\\%\\-\\+]{1,256}" +
            "\\@" +
            "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}" +
            "(" +
                "\\." +
                "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,25}" +
            ")+"
        );

    /**
     * This pattern is intended for searching for things that look like they
     * might be phone numbers in arbitrary text, not for validating whether
     * something is in fact a phone number.  It will miss many things that
     * are legitimate phone numbers.
     *
     * <p> The pattern matches the following:
     * <ul>
     * <li>Optionally, a + sign followed immediately by one or more digits. Spaces, dots, or dashes
     * may follow.
     * <li>Optionally, sets of digits in parentheses, separated by spaces, dots, or dashes.
     * <li>A string starting and ending with a digit, containing digits, spaces, dots, and/or dashes.
     * </ul>
     */
    public static final Pattern PHONE
        = Pattern.compile(                      // sdd = space, dot, or dash
                "(\\+[0-9]+[\\- \\.]*)?"        // +<digits><sdd>*
                + "(\\([0-9]+\\)[\\- \\.]*)?"   // (<digits>)<sdd>*
                + "([0-9][0-9\\- \\.]+[0-9])"); // <digit><digit|sdd>+<digit>

    /**
     *  Convenience method to take all of the non-null matching groups in a
     *  regex Matcher and return them as a concatenated string.
     *
     *  @param matcher      The Matcher object from which grouped text will
     *                      be extracted
     *
     *  @return             A String comprising all of the non-null matched
     *                      groups concatenated together
     */
    public static final String concatGroups(Matcher matcher) {
        StringBuilder b = new StringBuilder();
        final int numGroups = matcher.groupCount();

        for (int i = 1; i <= numGroups; i++) {
            String s = matcher.group(i);

            if (s != null) {
                b.append(s);
            }
        }

        return b.toString();
    }

    /**
     * Convenience method to return only the digits and plus signs
     * in the matching string.
     *
     * @param matcher      The Matcher object from which digits and plus will
     *                     be extracted
     *
     * @return             A String comprising all of the digits and plus in
     *                     the match
     */
    public static final String digitsAndPlusOnly(Matcher matcher) {
        StringBuilder buffer = new StringBuilder();
        String matchingRegion = matcher.group();

        for (int i = 0, size = matchingRegion.length(); i < size; i++) {
            char character = matchingRegion.charAt(i);

            if (character == '+' || Character.isDigit(character)) {
                buffer.append(character);
            }
        }
        return buffer.toString();
    }

    /**
     * Do not create this static utility class.
     */
    private Patterns() {}
}

Standart bir "Neden bu şekilde yapıyorsun?" cevap ... biliyor musun java.net.URL?

URL url = new URL(stringURL);

Yukarıdaki MalformedURLException, URL'yi ayrıştıramazsa bir atacaktır .

Önerilen tüm yaklaşımlarla ilgili sorun: Tüm Normal İfadeler doğrulanıyor

Tüm RegEx tabanlı kodlar aşırı mühendisliğe tabi tutulmuştur: yalnızca geçerli URL'leri bulacaktır! Örnek olarak, "http: //" ile başlayan ve içinde ASCII olmayan karakterler bulunan her şeyi göz ardı edecektir.

Daha da fazlası: Çok küçük ve basit cümleler için Java RegEx paketiyle (E-posta adreslerini metinden filtreleme) 1-2 saniyelik işlem süreleriyle (tek iş parçacıklı, özel) karşılaştım, özel bir şey yok; Java 6 RegEx'te olası hata ...

En basit / En hızlı çözüm, metni belirteçlere ayırmak, "http: //" vb. İle başlayan simgeleri kaldırmak ve simgeleri tekrar metne birleştirmek için StringTokenizer kullanmaktır.

E-postaları metinden filtrelemek istiyorsanız (çünkü daha sonra NLP personeli vb. Yapacaksınız) - içinde "@" bulunan tüm simgeleri kaldırın.

Bu, Java 6'nın RegEx'inin başarısız olduğu basit bir metindir. Java'nın farklı varyantlarında deneyin. Uzun çalışan tek iş parçacıklı bir test uygulamasında RegEx çağrısı başına yaklaşık 1000 milisaniye sürer:

pattern = Pattern.compile("[A-Za-z0-9](([_\\.\\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\\.\\-]?[a-zA-Z0-9]+)*)\\.([A-Za-z]{2,})", Pattern.CASE_INSENSITIVE);

"Avalanna is such a sweet little girl! It would b heartbreaking if cancer won. She's so precious! #BeliebersPrayForAvalanna");
"@AndySamuels31 Hahahahahahahahahhaha lol, you don't look like a girl hahahahhaahaha, you are... sexy.";

Yalnızca "@", "http: //", "ftp: //", "mailto:"; içeren sözcükleri filtrelemeniz gerekiyorsa normal ifadelere güvenmeyin; büyük bir mühendislik yükü.

RegEx'i Java ile gerçekten kullanmak istiyorsanız, Automaton'ı deneyin

Bu da işe yarar:

String regex = "\\b(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";

Not:

String regex = "<\\b(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]>"; // matches <http://google.com>

String regex = "<^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]>"; // does not match <http://google.com>

Yani muhtemelen ilki genel kullanım için daha kullanışlıdır.

Billjamesdev yanıtına uygun olarak, burada bir Normal İfade kullanmadan bir URL'yi doğrulamak için başka bir yaklaşım vardır:

Gönderen Apache Commons Validator lib, sınıf bakmak UrlValidator . Bazı örnek kodlar:

Geçerli "http" ve "https" şemalarına sahip bir UrlValidator oluşturun.

String[] schemes = {"http","https"}.
UrlValidator urlValidator = new UrlValidator(schemes);
if (urlValidator.isValid("ftp://foo.bar.com/")) {
   System.out.println("url is valid");
} else {
   System.out.println("url is invalid");
}

prints "url is invalid"

Bunun yerine varsayılan kurucu kullanılır.

UrlValidator urlValidator = new UrlValidator();
if (urlValidator.isValid("ftp://foo.bar.com/")) {
   System.out.println("url is valid");
} else {
   System.out.println("url is invalid");
}

"url geçerli" yazdırır

((http?|https|ftp|file)://)?((W|w){3}.)?[a-zA-Z0-9]+\.[a-zA-Z]+

burayı kontrol edin: - https://www.freeformatter.com/java-regex-tester.html#ad-output

Bu girişleri doğru bir şekilde sıralar

• google.com
• www.google.com
• wwwgooglecom
• ft.
• Www.google.com
• .ft
• https://www.google.com
• https: //
• https: // www .
• https://google.com

RegexBuddy kütüphanesinden normal ifadeleri kullanırken, kendi kodunuzda kütüphanedeki regex ile aynı eşleştirme modlarını kullandığınızdan emin olun. Kullanım sekmesinde bir kaynak kod parçacığı oluşturursanız, RegexBuddy kaynak kod parçacığında doğru eşleme seçeneklerini otomatik olarak ayarlayacaktır. Normal ifadeyi kopyalar / yapıştırırsanız, bunu kendiniz yapmanız gerekir.

Bu durumda, diğerlerinin de belirttiği gibi, büyük / küçük harf duyarlılığı seçeneğini kaçırdınız.