1 files changed, 55 insertions, 0 deletions
diff --git a/doc/user/src/prgm3.skb b/doc/user/src/prgm3.skb
new file mode 100644
index 0000000..51cb564
--- /dev/null
+++ b/doc/user/src/prgm3.skb
@@ -0,0 +1,55 @@
+(define (makefile-fontifier string)
+   (with-input-from-string string
+      (lambda ()
+	 (read/rp (regular-grammar ()
+		     ((: #\# (+ all))
+		      ;; makefile comment
+		      (let ((cmt (the-string)))
+			 (cons (it cmt) (ignore))))
+		     ((bol (: (+ (out " \t\n:")) #\:))
+		      ;; target
+		      (let ((prompt (the-string)))
+			 (cons (bold prompt) (ignore))))
+		     ((bol (: (+ alpha) #\=))
+		      ;; variable definitions
+		      (let* ((len (- (the-length) 1))
+			     (var (the-substring 0 len)))
+			 (cons (list (color :fg "#bb0000" (bold var)) "=")
+			       (ignore))))
+		     ((+ (out " \t\n:=$"))
+		      ;; plain strings
+		      (let ((str (the-string)))
+			 (cons str (ignore))))
+		     ((: #\$ #\( (+ (out " )\n")) #\))
+		      ;; variable references
+		      (let ((str (the-string))
+			    (var (the-substring 2 (- (the-length) 1))))
+			 (cons (underline str) (ignore))))
+		     ((+ (in " \t\n:"))
+		      ;; separators
+		      (let ((nl (the-string)))
+			 (cons nl (ignore))))
+		     (else
+		      ;; default
+		      (let ((c (the-failure)))
+			 (if (eof-object? c)
+			     '()
+			     (skribe-error 'makefile "Unexpected char" c)))))
+		  (current-input-port)))))
+
+(define makefile
+   (language :name "Makefile"
+	     :fontifier makefile-fontifier))
+	     
+(frame :width 100. 
+       (prog (source :language makefile [
+SKRIBE=skribe
+
+all: demo.html demo.man
+
+demo.html: demo.skb
+        $(SKRIBE) demo.skb -o demo.html
+
+demo.man: demo.skb
+        $(SKRIBE) demo.skb -o demo.man
+])))