From abc9b7a9999863b1d83e10e248337f70ec70dc7e Mon Sep 17 00:00:00 2001
From: Joe Presbrey <presbrey@mit.edu>
Date: Sun, 12 Nov 2006 20:50:41 +0000
Subject: [PATCH] some XHTML/XML wrapper classes

git-svn-id: svn://presbrey.mit.edu/php/lib@118 a142d4bd-2cfb-0310-9673-cb33a7e74f58
---
 lib/joe/container.lib.php | 90 +++++++++++++++++++++++++++++++++++++++
 lib/joe/css.lib.php       | 24 +++++++++++
 lib/joe/html.lib.php      |  4 ++
 lib/joe/rpcreply.lib.php  | 15 +++++++
 lib/joe/xml.lib.php       | 20 +++++++++
 5 files changed, 153 insertions(+)
 create mode 100755 lib/joe/container.lib.php
 create mode 100755 lib/joe/css.lib.php
 create mode 100755 lib/joe/html.lib.php
 create mode 100755 lib/joe/rpcreply.lib.php
 create mode 100755 lib/joe/xml.lib.php

diff --git a/lib/joe/container.lib.php b/lib/joe/container.lib.php
new file mode 100755
index 0000000..5df45e2
--- /dev/null
+++ b/lib/joe/container.lib.php
@@ -0,0 +1,90 @@
+<?php
+function __autoload($class_name) {
+	    require_once strtolower($class_name).'.lib.php';
+}
+
+abstract class Container {
+	var $sID;
+	var $aAttributes;
+	var $aContents;
+	function __construct($id=null,$attributes=array(),$contents=array()) {
+		$this->sID = $id;
+		if (is_array($attributes)) {
+			$this->aAttributes = $attributes;
+		}
+		if (is_array($contents))
+			$this->aContents = $contents;
+		else
+			$this->add($contents);
+	}
+    function __get($nm) {
+        if (isset($this->aAttributes[$nm])) {
+            $r = $this->aAttributes[$nm];
+            return $r;
+        }
+    }
+    function __set($nm, $val) {
+	//	if (isset($this->aAttributes[$nm])) {
+			$this->aAttributes[$nm] = $val;
+	//	}
+    }
+    function __isset($nm) {
+        return isset($this->aAttributes[$nm]);
+    }
+    function __unset($nm) {
+        unset($this->aAttributes[$nm]);
+    }
+
+	function add($obj) { $this->aContents[] = $obj; }
+	function set($obj) { $this->aContents = array($obj); }
+	function get_id() { return $this->sID; }
+	function has_id() { return !is_null($this->sID); }
+	function has_attributes() { return count($this->aAttributes); }
+	function get_attributes() { return $this->aAttributes; }
+	function get_contents() { return $this->aContents; }
+
+	protected function paint_head() {
+		if ($this->has_id()) {
+			if ($this->has_attributes()) {
+				return sprintf("<%s %s>", strtolower($this->get_id()), $this->paint_attributes());
+			} else {
+				return sprintf("<%s>", strtolower($this->get_id()));
+			}
+		}
+	}
+	protected function paint_attributes() {
+		$r = array();
+		foreach($this->get_attributes() as $k=>$v) {
+			$k = strtolower($k);
+			if (is_string($v)) {
+				$r[] = "$k=\"$v\"";
+			} elseif (is_object($v)) {
+				$r[] = "$k=\"".$v->__toString()."\"";
+			}
+		}
+		return implode(' ',$r);
+	}
+	protected function paint_foot() {
+		if ($this->has_id())
+			return sprintf("</%s>", strtolower($this->get_id()));
+	}
+	protected function paint_contents($split='') {
+		$r = array();
+		foreach($this->get_contents() as $item) {
+			if (is_string($item) && is_callable($item)) {
+				$args = func_get_args();
+				$r[] = ''.call_user_func($item,$args);
+			} elseif (is_object($item)) {
+				$r[] = ''.$item->__toString();
+			} elseif (is_string($item)) {
+				$r[] = ''.$item;
+			}
+		}
+		return implode($split,$r);
+	}
+	function __toString() {
+		return $this->paint_head().$this->paint_contents().$this->paint_foot();
+	}
+}
+
+class Entity extends Container {}
diff --git a/lib/joe/css.lib.php b/lib/joe/css.lib.php
new file mode 100755
index 0000000..e7d1b70
--- /dev/null
+++ b/lib/joe/css.lib.php
@@ -0,0 +1,24 @@
+<?php
+require_once 'container.lib.php';
+
+class CSS extends Container {
+	protected function paint_head() {
+		if ($this->has_id())
+			return sprintf("%s {", $this->get_id());
+	}
+	protected function paint_attributes() {
+		$r = array();
+		foreach($this->get_attributes() as $k=>$v) {
+			//$k = strtolower($k);
+			$r[] = "$k: $v;";
+		}
+		return implode('',$r);
+	}
+	protected function paint_foot() {
+		if ($this->has_id())
+			return sprintf("};");
+	}
+	function __toString() {
+		return $this->paint_head().$this->paint_attributes().$this->paint_foot();
+	}
+}
diff --git a/lib/joe/html.lib.php b/lib/joe/html.lib.php
new file mode 100755
index 0000000..fed63e1
--- /dev/null
+++ b/lib/joe/html.lib.php
@@ -0,0 +1,4 @@
+<?php
+require_once 'container.lib.php';
+
+class HTML extends Container {}
diff --git a/lib/joe/rpcreply.lib.php b/lib/joe/rpcreply.lib.php
new file mode 100755
index 0000000..7a151b9
--- /dev/null
+++ b/lib/joe/rpcreply.lib.php
@@ -0,0 +1,15 @@
+<?php
+require_once 'xml.lib.php';
+
+class RPCReply extends XML {
+	function __construct() {
+		parent::__construct('response');
+	}
+	function add_eval($data) {
+		parent::add(new CDATA('eval',array(),$data));
+	}
+	function add_update($id,$data) {
+		parent::add(new CDATA('update',array('id'=>$id),$data));
+	}
+}
+?>
diff --git a/lib/joe/xml.lib.php b/lib/joe/xml.lib.php
new file mode 100755
index 0000000..0c1cd2c
--- /dev/null
+++ b/lib/joe/xml.lib.php
@@ -0,0 +1,20 @@
+<?php
+require_once 'container.lib.php';
+
+class HTML extends Container {}
+class XHTML extends Container {}
+class XML extends Container {
+	function __toString() {
+		return "<?xml version='1.0' encoding='UTF-8' standalone='yes'?>\n".parent::__toString();
+	}
+}
+class CDATA extends Container {
+	protected function paint_contents() {
+		$r1 = "\n<![CDATA[";
+		$r2 = "]]>\n";
+		return $r1.parent::paint_contents().$r2;
+	}
+	function __toString() {
+		return $this->paint_head().$this->paint_contents().$this->paint_foot();
+	}
+}
-- 
2.45.0