| /* |
| * 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.text.util; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * @hide |
| */ |
| public class Regex { |
| /** |
| * Regular expression pattern to match all IANA top-level domains. |
| * List accurate as of 2007/06/15. List taken from: |
| * http://data.iana.org/TLD/tlds-alpha-by-domain.txt |
| * This pattern is auto-generated by //device/tools/make-iana-tld-pattern.py |
| */ |
| public static final Pattern TOP_LEVEL_DOMAIN_PATTERN |
| = Pattern.compile( |
| "((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[eghimnrwyz]" |
| + "|l[abcikrstuvy]" |
| + "|(mil|mobi|museum|m[acdghklmnopqrstuvwxyz])" |
| + "|(name|net|n[acefgilopruz])" |
| + "|(org|om)" |
| + "|(pro|p[aefghklmnrstwy])" |
| + "|qa" |
| + "|r[eouw]" |
| + "|s[abcdeghijklmnortuvyz]" |
| + "|(tel|travel|t[cdfghjklmnoprtvwz])" |
| + "|u[agkmsyz]" |
| + "|v[aceginu]" |
| + "|w[fs]" |
| + "|y[etu]" |
| + "|z[amw])"); |
| |
| /** |
| * Regular expression pattern to match RFC 1738 URLs |
| * List accurate as of 2007/06/15. List taken from: |
| * http://data.iana.org/TLD/tlds-alpha-by-domain.txt |
| * This pattern is auto-generated by //device/tools/make-iana-tld-pattern.py |
| */ |
| public static final Pattern WEB_URL_PATTERN |
| = Pattern.compile( |
| "((?:(http|https|Http|Https):\\/\\/(?:(?:[a-zA-Z0-9\\$\\-\\_\\.\\+\\!\\*\\'\\(\\)" |
| + "\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2}))+(?:\\:(?:[a-zA-Z0-9\\$\\-\\_" |
| + "\\.\\+\\!\\*\\'\\(\\)\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2}))+)?\\@)?)?" |
| + "((?:(?:[a-zA-Z0-9][a-zA-Z0-9\\-]*\\.)+" // named host |
| + "(?:" // plus top level domain |
| + "(?: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[eghimnrwyz]" |
| + "|l[abcikrstuvy]" |
| + "|(?:mil|mobi|museum|m[acdghklmnopqrstuvwxyz])" |
| + "|(?:name|net|n[acefgilopruz])" |
| + "|(?:org|om)" |
| + "|(?:pro|p[aefghklmnrstwy])" |
| + "|qa" |
| + "|r[eouw]" |
| + "|s[abcdeghijklmnortuvyz]" |
| + "|(?:tel|travel|t[cdfghjklmnoprtvwz])" |
| + "|u[agkmsyz]" |
| + "|v[aceginu]" |
| + "|w[fs]" |
| + "|y[etu]" |
| + "|z[amw]))" |
| + "|(?:(?:25[0-5]|2[0-4]" // or ip address |
| + "[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])))" |
| + "(?:\\:\\d{1,5})?)" // plus option port number |
| + "(\\/(?:(?:[a-zA-Z0-9\\;\\/\\?\\:\\@\\&\\=\\#\\~" // 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 IP_ADDRESS_PATTERN |
| = 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]))"); |
| |
| public static final Pattern DOMAIN_NAME_PATTERN |
| = Pattern.compile( |
| "(((([a-zA-Z0-9][a-zA-Z0-9\\-]*)*[a-zA-Z0-9]\\.)+" |
| + TOP_LEVEL_DOMAIN_PATTERN + ")|" |
| + IP_ADDRESS_PATTERN + ")"); |
| |
| public static final Pattern EMAIL_ADDRESS_PATTERN |
| = Pattern.compile( |
| "[a-zA-Z0-9\\+\\.\\_\\%\\-]+" + |
| "\\@" + |
| "[a-zA-Z0-9][a-zA-Z0-9\\-]*" + |
| "(" + |
| "\\." + |
| "[a-zA-Z0-9][a-zA-Z0-9\\-]*" + |
| ")+" |
| ); |
| |
| /** |
| * 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 |
| = Pattern.compile( // sdd = space, dot, or dash |
| "(\\+[0-9]+[\\- \\.]*)?" // +<digits><sdd>* |
| + "(\\([0-9]+\\)[\\- \\.]*)?" // (<digits>)<sdd>* |
| + "([0-9][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); |
| |
| System.err.println("Group(" + i + ") : " + s); |
| |
| 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(); |
| } |
| } |