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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.tools.ant.taskdefs.email;
/**
* Holds an email address.
*
* @since Ant 1.5
*/
public class EmailAddress {
private String name;
private String address;
/** Creates an empty email address */
public EmailAddress() {
}
/**
* Creates a new email address based on the given string
*
* @param email the email address (with or without <>)
* Acceptable forms include:
* address
* <address>
* name <address>
* <address> name
* (name) address
* address (name)
*/
// Make a limited attempt to extract a sanitized name and email address
// Algorithm based on the one found in Ant's MailMessage.java
public EmailAddress(String email) {
final int minLen = 9;
int len = email.length();
// shortcut for "<address>"
if (len > minLen) {
if ((email.charAt(0) == '<' || email.charAt(1) == '<')
&& (email.charAt(len - 1) == '>' || email.charAt(len - 2) == '>')) {
this.address = trim(email, true);
return;
}
}
int paramDepth = 0;
int start = 0;
int end = 0;
int nStart = 0;
int nEnd = 0;
for (int i = 0; i < len; i++) {
char c = email.charAt(i);
if (c == '(') {
paramDepth++;
if (start == 0) {
end = i; // support "address (name)"
nStart = i + 1;
}
} else if (c == ')') {
paramDepth--;
if (end == 0) {
start = i + 1; // support "(name) address"
nEnd = i;
}
} else if (paramDepth == 0 && c == '<') {
if (start == 0) {
nEnd = i;
}
start = i + 1;
} else if (paramDepth == 0 && c == '>') {
end = i;
if (end != len - 1) {
nStart = i + 1;
}
}
}
// DEBUG: System.out.println( email );
if (end == 0) {
end = len;
}
// DEBUG: System.out.println( "address: " + start + " " + end );
if (nEnd == 0) {
nEnd = len;
}
// DEBUG: System.out.println( "name: " + nStart + " " + nEnd );
this.address = trim(email.substring(start, end), true);
this.name = trim(email.substring(nStart, nEnd), false);
// if the two substrings are longer than the original, then name
// contains address - so reset the name to null
if (this.name.length() + this.address.length() > len) {
this.name = null;
}
}
/**
* A specialised trim() that trims whitespace,
* '(', ')', '"', '<', '>' from the start and end of strings
*/
private String trim(String t, boolean trimAngleBrackets) {
int start = 0;
int end = t.length();
boolean trim = false;
do {
trim = false;
if (t.charAt(end - 1) == ')'
|| (t.charAt(end - 1) == '>' && trimAngleBrackets)
|| (t.charAt(end - 1) == '"' && t.charAt(end - 2) != '\\')
|| t.charAt(end - 1) <= '\u0020') {
trim = true;
end--;
}
if (t.charAt(start) == '('
|| (t.charAt(start) == '<' && trimAngleBrackets)
|| t.charAt(start) == '"'
|| t.charAt(start) <= '\u0020') {
trim = true;
start++;
}
} while (trim);
return t.substring(start, end);
}
/**
* Sets the personal / display name of the address.
*
* @param name the display name
*/
public void setName(String name) {
this.name = name;
}
/**
* Sets the email address.
*
* @param address the actual email address (without <>)
*/
public void setAddress(String address) {
this.address = address;
}
/**
* Constructs a string "name <address>" or "address"
*
* @return a string representation of the address
*/
public String toString() {
if (name == null) {
return address;
} else {
return name + " <" + address + ">";
}
}
/**
* Returns the address
*
* @return the address part
*/
public String getAddress() {
return address;
}
/**
* Returns the display name
*
* @return the display name part
*/
public String getName() {
return name;
}
}
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