+/**
+ * url_parser.php
+ *
+ * Copyright (c) 1999-2002 The SquirrelMail Project Team
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * This code provides various string manipulation functions that are
+ * used by the rest of the Squirrelmail code.
+ *
+ * $Id$
+ */
+
+function replaceBlock (&$in, $replace, $start, $end) {
+ $begin = substr($in,0,$start);
+ $end = substr($in,$end,strlen($in)-$end);
+ $in = $begin.$replace.$end;
+}
+
+/* Having this defined in just one spot could help when changes need
+ * to be made to the pattern
+ * Make sure that the expression is evaluated case insensitively
+ *
+ * Here's pretty sophisticated IP matching:
+ * $IPMatch = '(2[0-5][0-9]|1?[0-9]{1,2})';
+ * $IPMatch = '\[?' . $IPMatch . '(\.' . $IPMatch . '){3}\]?';
+ */
+/* Here's enough: */
+global $IP_RegExp_Match, $Host_RegExp_Match, $Email_RegExp_Match;
+$IP_RegExp_Match = '\\[?[0-9]{1,3}(\\.[0-9]{1,3}){3}\\]?';
+$Host_RegExp_Match = '(' . $IP_RegExp_Match .
+ '|[0-9a-z]([-.]?[0-9a-z])*\\.[a-z][a-z]+)';
+$Email_RegExp_Match = '[0-9a-z]([-_.+]?[0-9a-z])*(%' . $Host_RegExp_Match .
+ ')?@' . $Host_RegExp_Match;
+
+function parseEmail (&$body) {
+ global $color, $Email_RegExp_Match, $compose_new_win;
+ $sbody = $body;
+ $addresses = array();
+
+ /* Find all the email addresses in the body */
+ while(eregi($Email_RegExp_Match, $sbody, $regs)) {
+ $addresses[$regs[0]] = $regs[0];
+ $start = strpos($sbody, $regs[0]) + strlen($regs[0]);
+ $sbody = substr($sbody, $start);
+ }
+ /* Replace each email address with a compose URL */
+ foreach ($addresses as $email) {
+ $comp_uri = '../src/compose.php?send_to='.urlencode($email);
+ if ($compose_new_win == '1') {
+ $comp_uri = 'javascript:void(0)" onClick="comp_in_new('
+ . "'$comp_uri'" . ')';
+ }
+ $comp_uri = '<a href="'.$comp_uri.'">'.$email.'</a>';
+ $body = str_replace($email, $comp_uri, $body);
+ }
+ /* Return number of unique addresses found */
+ return count($addresses);
+}
+
+
+/* We don't want to re-initialize this stuff for every line. Save work
+ * and just do it once here.
+ */
+global $url_parser_url_tokens;
+$url_parser_url_tokens = array(
+ 'http://',
+ 'https://',
+ 'ftp://',
+ 'telnet:', // Special case -- doesn't need the slashes
+ 'gopher://',
+ 'news://');
+
+global $url_parser_poss_ends;
+$url_parser_poss_ends = array(' ', "\n", "\r", '<', '>', ".\r", ".\n",
+ '. ', ' ', ')', '(', '"', '<', '>', '.<',
+ ']', '[', '{', '}', "\240", ', ', '. ', ",\n", ",\r");
+
+
+function parseUrl (&$body) {
+ global $url_parser_poss_ends, $url_parser_url_tokens;;
+ $start = 0;
+ $blength = strlen($body);