Arith

src/AST.ml

@@ -45,6 +45,7 @@ and word_component =
   | WTildePrefix of string
   | WLiteral of string
   | WDoubleQuoted of word
+  | WArith of word
   | WVariable of name * attribute
   | WSubshell of program
   | WGlobAll

src/CST_to_AST.ml

@@ -772,6 +772,8 @@ and word_component__to__word = function
     [AST.WTildePrefix prefix]
   | WordLiteral literal ->
     [AST.WLiteral literal]
+  | WordArith word ->
+    [AST.WArith (word__to__word word)]
   | WordAssignmentWord (Name name, Word (_, word_cst)) ->
     [AST.WLiteral name; AST.WLiteral "="]
     @ word_cst__to__word word_cst
@@ -799,6 +801,8 @@ and word_component_double_quoted__to__word = function
     []
   | WordName literal | WordLiteral literal | WordTildePrefix literal ->
     [AST.WLiteral literal]
+  | WordArith word ->
+    [AST.WArith (word__to__word word)]
   | WordSubshell (_, program') ->
     [AST.WSubshell (program'__to__program program')]
   | WordAssignmentWord (Name name, Word (_, word_cst)) ->

src/safePrinter.ml

@@ -32,6 +32,8 @@ let rec pp_name ppf =
 and pp_word_component ppf = function (*FIXME*)
   | WLiteral literal ->
      fpf ppf "%s" literal
+  | WArith word ->
+      fpf ppf "$((%a))" pp_word word
   | WTildePrefix _ ->
      assert false
   | WDoubleQuoted _word ->