extended unix grammars with character-based spelling

examples/unix/UnixUni.gf

@@ -1,8 +1,8 @@
 --# -path=.:prelude
 
-concrete UnixUni of Unix = open Prelude in {
+concrete UnixUni of Unix = CharUni ** open Prelude in {
 
-  flags unlexer=codelit ; lexer=codelit ;
+  flags unlexer=bind ;
 
 {-
   lincat
@@ -13,6 +13,9 @@ concrete UnixUni of Unix = open Prelude in {
 -}
 
   lin
+    CommWords w = w ;
+
+    Redirect = infixSS ">" ;
     Pipe = infixSS "|" ;
     Comm c = c ;
 
@@ -23,8 +26,18 @@ concrete UnixUni of Unix = open Prelude in {
     Copy x y = ss ("cp" ++ x.s ++ y.s) ;
     Linecount = prefixSS ["wc -l"] ;
     Wordcount = prefixSS ["wc -w"] ;
+    Grep x y = ss ("grep" ++ x.s ++ y.s) ;
+    Cat = prefixSS "cat" ;
 
-    Name x = x ;
     It = ss [] ;
 
+    FileChars c = c ;
+    WordChars c = c ;
+
+    FileSuffix = prefixSS ["* &+"] ;
+    FilePrefix = postfixSS ["&+ *"] ;
+
+    BaseWord w = w ;
+    ConsWord = cc2 ;
+
 }