210 lines
8.1 KiB
Java
210 lines
8.1 KiB
Java
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.common;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* Commonly used regular expression patterns.
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*/
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public class Patterns {
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/**
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* Regular expression pattern to match all IANA top-level domains.
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* List accurate as of 2007/06/15. List taken from:
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* http://data.iana.org/TLD/tlds-alpha-by-domain.txt
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* This pattern is auto-generated by //device/tools/make-iana-tld-pattern.py
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*/
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public static final Pattern TOP_LEVEL_DOMAIN
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= Pattern.compile(
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"((aero|arpa|asia|a[cdefgilmnoqrstuwxz])"
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+ "|(biz|b[abdefghijmnorstvwyz])"
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+ "|(cat|com|coop|c[acdfghiklmnoruvxyz])"
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+ "|d[ejkmoz]"
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+ "|(edu|e[cegrstu])"
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+ "|f[ijkmor]"
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+ "|(gov|g[abdefghilmnpqrstuwy])"
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+ "|h[kmnrtu]"
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+ "|(info|int|i[delmnoqrst])"
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+ "|(jobs|j[emop])"
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+ "|k[eghimnrwyz]"
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+ "|l[abcikrstuvy]"
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+ "|(mil|mobi|museum|m[acdghklmnopqrstuvwxyz])"
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+ "|(name|net|n[acefgilopruz])"
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+ "|(org|om)"
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+ "|(pro|p[aefghklmnrstwy])"
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+ "|qa"
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+ "|r[eouw]"
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+ "|s[abcdeghijklmnortuvyz]"
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+ "|(tel|travel|t[cdfghjklmnoprtvwz])"
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+ "|u[agkmsyz]"
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+ "|v[aceginu]"
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+ "|w[fs]"
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+ "|y[etu]"
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+ "|z[amw])");
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/**
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* Regular expression pattern to match RFC 1738 URLs
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* List accurate as of 2007/06/15. List taken from:
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* http://data.iana.org/TLD/tlds-alpha-by-domain.txt
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* This pattern is auto-generated by //device/tools/make-iana-tld-pattern.py
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*/
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public static final Pattern WEB_URL
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= Pattern.compile(
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"((?:(http|https|Http|Https|rtsp|Rtsp):\\/\\/(?:(?:[a-zA-Z0-9\\$\\-\\_\\.\\+\\!\\*\\'\\(\\)"
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+ "\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2})){1,64}(?:\\:(?:[a-zA-Z0-9\\$\\-\\_"
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+ "\\.\\+\\!\\*\\'\\(\\)\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2})){1,25})?\\@)?)?"
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+ "((?:(?:[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}\\.)+" // named host
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+ "(?:" // plus top level domain
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+ "(?:aero|arpa|asia|a[cdefgilmnoqrstuwxz])"
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+ "|(?:biz|b[abdefghijmnorstvwyz])"
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+ "|(?:cat|com|coop|c[acdfghiklmnoruvxyz])"
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+ "|d[ejkmoz]"
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+ "|(?:edu|e[cegrstu])"
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+ "|f[ijkmor]"
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+ "|(?:gov|g[abdefghilmnpqrstuwy])"
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+ "|h[kmnrtu]"
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+ "|(?:info|int|i[delmnoqrst])"
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+ "|(?:jobs|j[emop])"
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+ "|k[eghimnrwyz]"
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+ "|l[abcikrstuvy]"
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+ "|(?:mil|mobi|museum|m[acdghklmnopqrstuvwxyz])"
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+ "|(?:name|net|n[acefgilopruz])"
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+ "|(?:org|om)"
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+ "|(?:pro|p[aefghklmnrstwy])"
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+ "|qa"
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+ "|r[eouw]"
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+ "|s[abcdeghijklmnortuvyz]"
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+ "|(?:tel|travel|t[cdfghjklmnoprtvwz])"
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+ "|u[agkmsyz]"
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+ "|v[aceginu]"
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+ "|w[fs]"
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+ "|y[etu]"
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+ "|z[amw]))"
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+ "|(?:(?:25[0-5]|2[0-4]" // or ip address
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+ "[0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9])\\.(?:25[0-5]|2[0-4][0-9]"
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+ "|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(?:25[0-5]|2[0-4][0-9]|[0-1]"
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+ "[0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}"
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+ "|[1-9][0-9]|[0-9])))"
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+ "(?:\\:\\d{1,5})?)" // plus option port number
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+ "(\\/(?:(?:[a-zA-Z0-9\\;\\/\\?\\:\\@\\&\\=\\#\\~" // plus option query params
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+ "\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])|(?:\\%[a-fA-F0-9]{2}))*)?"
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+ "(?:\\b|$)"); // and finally, a word boundary or end of
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// input. This is to stop foo.sure from
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// matching as foo.su
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public static final Pattern IP_ADDRESS
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= Pattern.compile(
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"((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]"
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+ "[0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1]"
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+ "[0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}"
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+ "|[1-9][0-9]|[0-9]))");
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public static final Pattern DOMAIN_NAME
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= Pattern.compile(
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"(((([a-zA-Z0-9][a-zA-Z0-9\\-]*)*[a-zA-Z0-9]\\.)+"
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+ TOP_LEVEL_DOMAIN + ")|"
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+ IP_ADDRESS + ")");
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public static final Pattern EMAIL_ADDRESS
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= Pattern.compile(
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"[a-zA-Z0-9\\+\\.\\_\\%\\-\\+]{1,256}" +
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"\\@" +
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"[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}" +
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"(" +
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"\\." +
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"[a-zA-Z0-9][a-zA-Z0-9\\-]{0,25}" +
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")+"
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);
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/**
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* This pattern is intended for searching for things that look like they
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* might be phone numbers in arbitrary text, not for validating whether
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* something is in fact a phone number. It will miss many things that
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* are legitimate phone numbers.
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*
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* <p> The pattern matches the following:
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* <ul>
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* <li>Optionally, a + sign followed immediately by one or more digits. Spaces, dots, or dashes
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* may follow.
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* <li>Optionally, sets of digits in parentheses, separated by spaces, dots, or dashes.
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* <li>A string starting and ending with a digit, containing digits, spaces, dots, and/or dashes.
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* </ul>
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*/
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public static final Pattern PHONE
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= Pattern.compile( // sdd = space, dot, or dash
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"(\\+[0-9]+[\\- \\.]*)?" // +<digits><sdd>*
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+ "(\\([0-9]+\\)[\\- \\.]*)?" // (<digits>)<sdd>*
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+ "([0-9][0-9\\- \\.][0-9\\- \\.]+[0-9])"); // <digit><digit|sdd>+<digit>
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/**
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* Convenience method to take all of the non-null matching groups in a
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* regex Matcher and return them as a concatenated string.
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*
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* @param matcher The Matcher object from which grouped text will
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* be extracted
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*
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* @return A String comprising all of the non-null matched
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* groups concatenated together
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*/
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public static final String concatGroups(Matcher matcher) {
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StringBuilder b = new StringBuilder();
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final int numGroups = matcher.groupCount();
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for (int i = 1; i <= numGroups; i++) {
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String s = matcher.group(i);
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System.err.println("Group(" + i + ") : " + s);
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if (s != null) {
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b.append(s);
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}
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}
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return b.toString();
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}
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/**
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* Convenience method to return only the digits and plus signs
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* in the matching string.
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*
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* @param matcher The Matcher object from which digits and plus will
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* be extracted
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*
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* @return A String comprising all of the digits and plus in
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* the match
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*/
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public static final String digitsAndPlusOnly(Matcher matcher) {
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StringBuilder buffer = new StringBuilder();
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String matchingRegion = matcher.group();
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for (int i = 0, size = matchingRegion.length(); i < size; i++) {
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char character = matchingRegion.charAt(i);
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if (character == '+' || Character.isDigit(character)) {
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buffer.append(character);
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}
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}
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return buffer.toString();
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}
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/**
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* Do not create this static utility class.
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*/
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private Patterns() {}
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}
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