From 58535bab463ff1f119f003b6aee05937979d32d0 Mon Sep 17 00:00:00 2001
From: Zheng Zhu <zhengzhu@users.mediawiki.org>
Date: Tue, 9 Nov 2004 21:22:07 +0000
Subject: [PATCH] ZhClient queries zhdaemon to provide Chinese text processing
 service.

---
 includes/ZhClient.php | 239 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 239 insertions(+)
 create mode 100644 includes/ZhClient.php

diff --git a/includes/ZhClient.php b/includes/ZhClient.php
new file mode 100644
index 0000000000..8a6d8e292a
--- /dev/null
+++ b/includes/ZhClient.php
@@ -0,0 +1,239 @@
+<?php
+/**
+ * Client for querying zhdaemon
+ *
+ * @package MediaWiki
+ * @version $Id$
+ */
+
+class ZhClient {
+	var $mHost, $mPort, $mFP, $mConnected;
+
+	/**
+	 * Constructor
+	 *
+	 * @access private
+	 */
+	function ZhClient($host, $port) {
+		$this->mHost = $host;
+		$this->mPort = $port;
+		$this->mConnected = $this->connect();
+	}
+
+	/**
+	 * Check if connection to zhdaemon is successful
+	 *
+	 * @access public
+	 */
+	function isconnected() {
+		return $this->mConnected;
+	}
+
+	/**
+	 * Establish conncetion
+	 *
+	 * @access private
+	 */
+	function connect() {
+		$this->mFP = fsockopen($this->mHost, $this->mPort, $errno, $errstr, 30);
+		if(!$this->mFP) {
+			return false;
+		}
+		return true;
+	}
+
+	/**
+	 * Query the daemon and return the result
+	 *
+	 * @access private
+	 */
+	function query($request) {
+		if(!$this->mConnected)
+			return false;
+
+		fwrite($this->mFP, $request);
+
+		$result=fgets($this->mFP, 1024);
+
+		list($status, $len) = explode(" ", $result);
+		if($status == 'ERROR') {
+			//$len is actually the error code...
+			print "zhdaemon error $len<br />\n";
+			return false;
+		}
+		$bytesread=0;
+		$data='';
+		while(!feof($this->mFP) && $bytesread<$len) {
+			$str= fread($this->mFP, $len-$bytesread);
+			$bytesread += strlen($str);
+			$data .= $str;
+		}
+		return $data;
+	}
+
+	/**
+	 * Convert the input to a different language variant
+	 *
+	 * @param string $text input text
+	 * @param string $tolang language variant
+	 * @return string the converted text
+	 * @access public
+	 */
+	function convert($text, $tolang) {
+		$len = strlen($text);
+		$q = "CONV $tolang $len\n$text";
+		$result = $this->query($q);
+		if(!$result)
+			$result = $text;
+		return $result;
+	}
+
+	/**
+	 * Perform word segmentation
+	 *
+	 * @param string $text input text
+	 * @return string segmented text
+	 * @access public
+	 */
+	function segment($text) {
+		$len = strlen($text);
+		$q = "SEG $len\n$text";
+		$result = $this->query($q);
+		if(!$result)
+			$result = $text;
+		return $result;
+	}
+
+	/**
+	 * Close the connection
+	 *
+	 * @access public
+	 */
+	function close() {
+		fclose($this->mFP);
+	}
+}
+
+
+class ZhClientFake {
+
+	function ZhClientFake() {
+		global $wgMemc, $wgDBname;
+		$this->zh2TW = $wgMemc->get($key1 = "$wgDBname:zhConvert:tw");
+		$this->zh2CN = $wgMemc->get($key2 = "$wgDBname:zhConvert:cn");
+		$this->zh2SG = $wgMemc->get($key3 = "$wgDBname:zhConvert:sg");
+		$this->zh2HK = $wgMemc->get($key4 = "$wgDBname:zhConvert:hk");
+		if(empty($this->zh2TW) || empty($this->zh2CN) || empty($this->zh2SG) || empty($this->zh2HK)) {
+			require_once("includes/ZhConversion.php");
+			$this->zh2TW = $zh2TW;
+			$this->zh2CN = $zh2CN;
+			$this->zh2HK = $zh2HK;
+			$this->zh2SG = $zh2SG;
+			$wgMemc->set($key1, $this->zh2TW);
+			$wgMemc->set($key2, $this->zh2CN);
+			$wgMemc->set($key3, $this->zh2SG);
+			$wgMemc->set($key4, $this->zh2HK);
+		}
+	}
+
+	function isconnected() {
+		return true;
+	}
+
+	/**
+	 * Convert to zh-tw
+	 *
+	 * @access private
+	 */
+	function zh2tw($text) {
+		return strtr($text, $this->zh2TW);
+	}
+
+	/**
+	 * Convert to zh-cn
+	 *
+	 * @access private
+	 */
+	function zh2cn($text) {
+		return strtr($text, $this->zh2CN);
+	}
+
+	/**
+	 * Convert to zh-sg
+	 *
+	 * @access private
+	 */
+	function zh2sg($text) {
+		return strtr(strtr($text, $this->zh2CN), $this->zh2SG);
+	}
+
+	/**
+	 * Convert to zh-hk
+	 *
+	 * @access private
+	 */
+	function zh2hk($text) {
+		return strtr(strtr($text, $this->zh2TW), $this->zh2HK);
+	}
+
+	/**
+	 * Convert the input to a different language variant
+	 *
+	 * @param string $text input text
+	 * @param string $tolang language variant
+	 * @return string the converted text
+	 * @access public
+	 */
+	function convert($text, $tolang) {
+		$t = '';
+		switch($tolang) {
+        case 'zh-cn':
+			$t = $this->zh2cn($text);
+			break;
+		case 'zh-tw':
+			$t = $this->zh2tw($text);
+			break;
+		case 'zh-sg':
+			$t = $this->zh2sg($text);
+			break;
+		case 'zh-hk':
+			$t = $this->zh2hk($text);
+			break;
+		default:
+			$t = $text;
+		}
+		return $t;
+	}
+
+	/**
+	 * Perform "fake" word segmentation, i.e. treating each character as a word
+	 *
+	 * @param string $text input text
+	 * @return string segmented text
+	 * @access public
+	 */
+	function segment($text) {
+		/* copied from LanguageZh_cn.stripForSearch() */
+		if( function_exists( 'mb_strtolower' ) ) {
+			return preg_replace(
+				"/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
+				"' U8' . bin2hex( \"$1\" )",
+				mb_strtolower( $string ) );
+		} else {
+			global $wikiLowerChars;
+			return preg_replace(
+				"/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
+				"' U8' . bin2hex( strtr( \"\$1\", \$wikiLowerChars ) )",
+				$string );
+		}
+	}
+
+	/**
+	 * Close the fake connection
+	 *
+	 * @access public
+	 */
+	function close() {	}
+}
+
+?>
\ No newline at end of file
-- 
2.20.1