From 9301b03b53a2f262a0580c16b005db7f656a9af8 Mon Sep 17 00:00:00 2001
From: Patricio Gonzalez Vivo <patriciogonzalezvivo@gmail.com>
Date: Sat, 18 Jul 2015 14:50:10 -0400
Subject: [PATCH] dynamic titles

---
 00/index.php       |  1 +
 01/index.php       |  1 +
 02/index.php       |  1 +
 03/index.php       |  1 +
 04/index.php       |  1 +
 05/index.php       |  1 +
 06/index.php       |  1 +
 07/index.php       |  1 +
 08/index.php       |  1 +
 09/index.php       |  1 +
 10/index.php       |  1 +
 11/index.php       |  1 +
 glossary/index.php |  3 +++
 header.php         | 12 +++++++++---
 14 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/00/index.php b/00/index.php
index d66911a..659b553 100644
--- a/00/index.php
+++ b/00/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": about this book";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/01/index.php b/01/index.php
index 8c9355a..9655064 100644
--- a/01/index.php
+++ b/01/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": What is a shader?";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/02/index.php b/02/index.php
index 8c9355a..a30230a 100644
--- a/02/index.php
+++ b/02/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": Hello world!";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/03/index.php b/03/index.php
index 8c9355a..4e67d92 100644
--- a/03/index.php
+++ b/03/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": uniforms";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/04/index.php b/04/index.php
index 8c9355a..0eff319 100644
--- a/04/index.php
+++ b/04/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": Running your shader";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/05/index.php b/05/index.php
index 8c9355a..3864389 100644
--- a/05/index.php
+++ b/05/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": shaping functions";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/06/index.php b/06/index.php
index 8c9355a..b22d810 100644
--- a/06/index.php
+++ b/06/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": color";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/07/index.php b/07/index.php
index 8c9355a..7dc8f60 100644
--- a/07/index.php
+++ b/07/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": Shapes";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/08/index.php b/08/index.php
index 8900cc7..77fbc2e 100644
--- a/08/index.php
+++ b/08/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": 2D Matrices";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/09/index.php b/09/index.php
index 1ff7dd9..a58f56c 100644
--- a/09/index.php
+++ b/09/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": Patterns";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/10/index.php b/10/index.php
index 8c9355a..07c7ba1 100644
--- a/10/index.php
+++ b/10/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": Random";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/11/index.php b/11/index.php
index 8c9355a..25436c7 100644
--- a/11/index.php
+++ b/11/index.php
@@ -1,6 +1,7 @@
 <?php 
 
 	$path = "..";
+	$subtitle = ": Noise";
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/glossary/index.php b/glossary/index.php
index 76ef9ae..2fbae56 100644
--- a/glossary/index.php
+++ b/glossary/index.php
@@ -1,6 +1,9 @@
 <?php 
 
 	$path = "..";
+	if(!empty($_GET)) 
+		$subtitle = ": ".$_GET['search'];
+
 	include($path."/header.php");
 	include($path."/src/parsedown/Parsedown.php");
 
diff --git a/header.php b/header.php
index 062c7a5..551ee2e 100644
--- a/header.php
+++ b/header.php
@@ -6,9 +6,15 @@ echo '
 <html>
 	<head>
 		<meta charset="utf-8">
-		<title>The Book of Shaders</title>
-		<meta name="keywords" content="shader,shaders,GLSL,book,pixel,fragment,uniform,texture,procedural,generative,matrix,random,noise" />
-		<meta name="description" content="This is a gentle step-by-step guide through the abstract and complex universe of Fragment Shaders." />
+		<title>The Book of Shaders'.$subtitle.'</title>
+		<meta name="keywords" content="shader,openGL,WebGL,GLSL,book,procedural,generative" />
+		<meta name="description" content="Gentle step-by-step guide through the abstract and complex universe of Fragment Shaders." />
+
+		<meta name="twitter:site" content="@bookofshaders">
+	    <meta name="twitter:title" content="The Book Of Shaders">
+	    <meta name="twitter:description" content="Gentle step-by-step guide through the abstract and complex universe of Fragment Shaders.">
+	    <meta name="twitter:creator" content="@patriciogv">
+	    <meta name="twitter:domain" content="thebookofshaders.edu">
 
 		<!-- CodeMirror -->
 		<link type="text/css" rel="stylesheet" href="'.$path.'/src/codemirror/css/codemirror.css">