added $* for subexes

doc/subexes.txt

@@ -16,10 +16,12 @@ Notation                meaning
 ``$name``               use named argument, you can wrap the named argument
                         in curly braces (eg. ``${name}``) to separate it from
                         the next characters.
+``$$``                  produces a single ``$``
 ``$1``                  use first argument
 ``$-1``                 use last argument
 ``${1..3}``             use arguments 1 to 3
 ``${..}``               use all arguments
+``$*``                  use all arguments (same as ``${..}``)
 ``${#..}``              use all remaining arguments
 ``${..-2}``             use all arguments except the last argument
 ``${$1}``               use argument X where ``X = parseInt(arg[1])``

lib/pure/subexes.nim

@@ -196,6 +196,9 @@ proc scanDollar(p: var TFormatParser, a: openarray[string], s: var string) =
   of '$': 
     emitChar p, s, '$'
     inc i
+  of '*':
+    for j in 0..a.high: emitStr p, s, a[j]
+    inc i
   of '{':
     call:
       let (x, y) = scanSlice(p, a)