Android about urls, phone numbers, regular expressions for mailboxes-most authoritative

<span id="Label3"></p>Requirements: determine if the URL is legitimate<p><p>Today when writing a project, you need to be able to identify the function of the url, the first thought is the regular expression</p></p><p><p>But the types of Web sites are diverse, the network of various expressions also a lot of search, it is difficult to know which one of the great God wrote the reliable</p></p>Discovery: Textview's Android:autolink Property<p><p>today, the first thing to discover is that Android comes with a similar function inside the TextView function</p></p><pre class="brush:java;gutter:true;"><pre class="brush:java;gutter:true;"> <textview android:id= "@+id/tv_scan_result" android:layout_width= "match_parent" android:layout_ height= "wrap_content" android:autolink= "web|email|phone|map" android:visibility= "gone"/></pre></pre><p><p>When the Autolink property is set, TextView will display the content according to the listed attribute values, special display of the url, mailbox, phone, and the event handling when Clicked.</p></p><p><p>so, textview, How did this come true?</p></p>Android.util.Patterns<p><p>Looking at a little bit of source discovery, Android provides an SDK that contains a class: android.util.Patterns;</p></p><pre class="brush:java;gutter:true;"><pre class="brush:java;gutter:true;">/** * Regular expression pattern to match the most part of the RFC 3987 * Inter Nationalized URLs, aka IRIs. Commonly used Unicode characters is * 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 Quer Y params + "\\-\\.\\+\\!\\*\\" \ \ \ \\,\\_]) | (?:\ \%[a-fa-f0-9]{2}))? " + "(?:\ \b|$) "); and finally, a word boundary or end Of//input. This was to the stop foo.sure from//matching as foo.su </pre></pre>Working with instances<p><p>My own side of the method is as Follows:</p></p><pre class="brush:java;gutter:true;"><pre class="brush:java;gutter:true;"> /** * Determine if it is a valid URL address * @param url * @return * /private boolean isvalidurl (String url) { return Textutils.isempty (url) = = False && url.matches (Patterns.WEB_URL.pattern ()); }</pre></pre><p><p>There are many other patterns, such as mobile phone number, mail, IP address. The following adds the entire class in</p></p>The entire source<pre class="brush:java;collapse:true;;gutter:true;">/* Copyright (C) The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License") ; * You are not a use this file except in compliance with the License. * Obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * unless required by appli Cable law or agreed into writing, software * Distributed under the License is distributed on a "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 Framewo rks/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 Framewo rks/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|asi A|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]) "+" | (?: o Rg|om) "+" | (?:p ro|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-byte Unicode characters is 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 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 the most part of the RFC 3987 * internationalized URLs, aka IRIs. Commonly used Unicode characters is * 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 Quer Y params + "\\-\\.\\+\\!\\*\\" \ \ \ \\,\\_]) | (?:\ \%[a-fa-f0-9]{2}))? " + "(?:\ \b|$) "); and finally, a word boundary or end Of//input. This was to the 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-z a-z0-9\\-]{0,64} "+" ("+" \ \ "+" [a-za-z0-9][a-za-z0-9\\-]{0,25} "+ ")+" ); /** * This pattern is IntenDed for searching for things it look like they * might is phone numbers in arbitrary text, not for validating whethe R * Something is in fact a phone number. It'll Miss many things that * is legitimate phone numbers. * <p> The pattern matches the following: * <ul> * <li>optionally, A + sign followed Immedi Ately 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, D ot, or Dash "(\\+[0-9]+[\\-\.) *)?" +<digits><sdd>* + "(\ \ ([0-9]+\\) [\\-\ \.] *)?" (<digits>) <sdd>* + "([0-9][0-9\\-\ \.] +[0-9]); <digit><digit|sdd>+<digit>/** * Convenience method to take any of the non-null matching groups in a * regex Ma Tcher and return them as a concatenated string. * * @param matcher the Matcher object from which grouped text would * 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 would * 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 the this static utility class. */private Patterns () {}}</pre><p><p>　　</p></p><p><p>Android about urls, phone numbers, regular expressions for mailboxes-most authoritative</p></p></span>