Moving 4DNav out of unmaintained and fixing docs

extra/4DNav/4DNav-docs.factor

@@ -1,6 +1,6 @@
 ! Copyright (C) 2008 Jean-François Bigot.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: help.markup help.syntax kernel quotations strings ;
+USING: help.markup help.syntax kernel quotations strings multiline ;
 IN: 4DNav
 
 
@@ -87,60 +87,57 @@ ARTICLE: "Space file" "Create a new space file"
 
 $nl
 "An example is:"
-$nl
+{ $code <"
+<model>
+<space>
+ <dimension>4</dimension>
+ <solid>
+     <name>4cube1</name>
+     <dimension>4</dimension>
+     <face>1,0,0,0,100</face>
+     <face>-1,0,0,0,-150</face>
+     <face>0,1,0,0,100</face>
+     <face>0,-1,0,0,-150</face>
+     <face>0,0,1,0,100</face>
+     <face>0,0,-1,0,-150</face>
+     <face>0,0,0,1,100</face>
+     <face>0,0,0,-1,-150</face>
+     <color>1,0,0</color>
+ </solid>
+ <solid>
+     <name>4triancube</name>
+     <dimension>4</dimension>
+     <face>1,0,0,0,160</face>
+     <face>-0.4999999999999998,-0.8660254037844387,0,0,-130</face>
+     <face>-0.5000000000000004,0.8660254037844384,0,0,-130</face>
+     <face>0,0,1,0,140</face>
+     <face>0,0,-1,0,-180</face>
+     <face>0,0,0,1,110</face>
+     <face>0,0,0,-1,-180</face>
+     <color>0,1,0</color>
+ </solid>
+ <solid>
+     <name>triangone</name>
+     <dimension>4</dimension>
+     <face>1,0,0,0,60</face>
+     <face>0.5,0.8660254037844386,0,0,60</face>
+     <face>-0.5,0.8660254037844387,0,0,-20</face>
+     <face>-1.0,0,0,0,-100</face>
+     <face>-0.5,-0.8660254037844384,0,0,-100</face>
+     <face>0.5,-0.8660254037844387,0,0,-20</face>
+     <face>0,0,1,0,120</face>
+     <face>0,0,-0.4999999999999998,-0.8660254037844387,-120</face>
+     <face>0,0,-0.5000000000000004,0.8660254037844384,-120</face>
+     <color>0,1,1</color>
+ </solid>
+ <light>
+     <direction>1,1,1,1</direction>
+     <color>0.2,0.2,0.6</color>
+ </light>
+ <color>0.8,0.9,0.9</color>
+</space>
+</model> "> } ;
 
-"\n<model>"
-"\n<space>"
-"\n <dimension>4</dimension>"
-"\n <solid>"
-"\n     <name>4cube1</name>"
-"\n     <dimension>4</dimension>"
-"\n     <face>1,0,0,0,100</face>"
-"\n     <face>-1,0,0,0,-150</face>"
-"\n     <face>0,1,0,0,100</face>"
-"\n     <face>0,-1,0,0,-150</face>"
-"\n     <face>0,0,1,0,100</face>"
-"\n     <face>0,0,-1,0,-150</face>"
-"\n     <face>0,0,0,1,100</face>"
-"\n     <face>0,0,0,-1,-150</face>"
-"\n     <color>1,0,0</color>"
-"\n </solid>"
-"\n <solid>"
-"\n     <name>4triancube</name>"
-"\n     <dimension>4</dimension>"
-"\n     <face>1,0,0,0,160</face>"
-"\n     <face>-0.4999999999999998,-0.8660254037844387,0,0,-130</face>"
-"\n     <face>-0.5000000000000004,0.8660254037844384,0,0,-130</face>"
-"\n     <face>0,0,1,0,140</face>"
-"\n     <face>0,0,-1,0,-180</face>"
-"\n     <face>0,0,0,1,110</face>"
-"\n     <face>0,0,0,-1,-180</face>"
-"\n     <color>0,1,0</color>"
-"\n </solid>"
-"\n <solid>"
-"\n     <name>triangone</name>"
-"\n     <dimension>4</dimension>"
-"\n     <face>1,0,0,0,60</face>"
-"\n     <face>0.5,0.8660254037844386,0,0,60</face>"
-"\n     <face>-0.5,0.8660254037844387,0,0,-20</face>"
-"\n     <face>-1.0,0,0,0,-100</face>"
-"\n     <face>-0.5,-0.8660254037844384,0,0,-100</face>"
-"\n     <face>0.5,-0.8660254037844387,0,0,-20</face>"
-"\n     <face>0,0,1,0,120</face>"
-"\n     <face>0,0,-0.4999999999999998,-0.8660254037844387,-120</face>"
-"\n     <face>0,0,-0.5000000000000004,0.8660254037844384,-120</face>"
-"\n     <color>0,1,1</color>"
-"\n </solid>"
-"\n <light>"
-"\n     <direction>1,1,1,1</direction>"
-"\n     <color>0.2,0.2,0.6</color>"
-"\n </light>"
-"\n <color>0.8,0.9,0.9</color>"
-"\n</space>"
-"\n</model>"
-
-
-;
 ARTICLE: "TODO" "Todo"
 { $list 
     "A vocab to initialize parameters"
@@ -168,7 +165,7 @@ ARTICLE: "4DNav" "The 4DNav app"
 $nl
 { $heading "4D Navigator" }
 "4DNav is a simple tool to visualize 4 dimensionnal objects."
-"\n"
+$nl
 "It uses " { $vocab-link "adsoda" } " library to display a 4D space and navigate thru it."
 $nl
 "It will display:"

extra/4DNav/camera/camera-docs.factor

@@ -32,15 +32,15 @@ HELP: do-look-at
 
 ARTICLE: "4DNav.camera" "Camera"
 { $vocab-link "4DNav.camera" }
-"\n"
+$nl
 "A camera is defined by:"
 { $list
 { "a position (" { $link camera-eye } ")" }
-{ "a focus direction (" { $link camera-focus } ")\n" }
-{ "an attitude information (" { $link camera-up } ")\n" }
+{ "a focus direction (" { $link camera-focus } ")" }
+{ "an attitude information (" { $link camera-up } ")" }
 }
-"\nUse " { $link do-look-at } " in opengl statement in placement of gl-look-at"
-"\n\n"
+"Use " { $link do-look-at } " in opengl statement in placement of gl-look-at"
+$nl
 "A camera is a " { $vocab-link "4DNav.turtle" } " object. Its a special vocab to handle mouvements of a 3D object:"
 { $list
 { "To define a camera"