-(* HCoop Domtool (http://hcoop.sourceforge.net/)
- * Copyright (c) 2006, Adam Chlipala
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *)
-
-(* Pretty-printing Domtool configuration file ASTs *)
-
-structure Print :> PRINT = struct
-
-open Ast
-
-structure SM = TextIOPP
-
-structure PD = PPDescFn(SM)
-open PD
-
-fun dBox ds = hovBox (PPS.Rel 1, ds)
-fun dvBox ds = vBox (PPS.Rel 0, ds)
-fun ivBox ds = vBox (PPS.Rel 1, ds)
-
-fun parenIf pn ds =
- if pn then
- dBox (string "(" :: ds @ [string ")"])
- else
- dBox ds
-
-fun p_pred' pn (p, _) =
- case p of
- CRoot => string "Root"
- | CConst s => string s
- | CPrefix p => dBox [string "^", p_pred' true p]
- | CNot p => dBox [string "!", p_pred' true p]
- | CAnd (p1, p2) =>
- parenIf pn [p_pred' true p1, space 1, string "&", space 1, p_pred' true p2]
-
-val p_pred = p_pred' false
-
-fun p_predBoxed p = dBox [string "[", p_pred p, string "]"]
-
-fun p_typ' pn (t, _) =
- case t of
- TBase s => string s
- | TList t => dBox [string "[", p_typ' false t, string "]"]
- | TArrow (t1, t2) =>
- parenIf pn [p_typ' true t1, space 1, string "->", space 1, p_typ' true t2]
- | TAction (p, r1, r2) =>
- parenIf pn [p_predBoxed p, space 1, p_record r1, space 1,
- string "=>", space 1, p_record r2]
- | TNested (p, t) =>
- parenIf pn [p_pred' false p, space 1, string "=>", space 1, p_typ' false t]
-
- | TError => string "<error>"
- | TUnif (_, ref (SOME t)) => p_typ' pn t
- | TUnif (name, ref NONE) => string ("<" ^ name ^ ">")
-
-and p_record r =
- case StringMap.foldri (fn (name, t, d) =>
- SOME (case d of
- NONE => dBox [string name, space 1,
- string ":", space 1, p_typ t]
- | SOME d => dBox [dBox [string name, space 1,
- string ":", space 1, p_typ t],
- string ",", space 1, d]))
- NONE r of
- NONE => string "{}"
- | SOME d => dBox [string "{", d, string "}"]
-
-and p_typ t = p_typ' false t
-
-fun p_exp (e, _) =
- case e of
- EInt n => string (Int.toString n)
- | EString s => string (String.concat ["\"", String.toString s, "\""])
- | EList es =>
- (case foldr (fn (e, d) =>
- SOME (case d of
- NONE => p_exp e
- | SOME d => dBox [p_exp e, string ",", space 1, d]))
- NONE es of
- NONE => string "[]"
- | SOME d => dBox [string "[", d, string "]"])
-
- | ELam (x, NONE, e) => dBox [string "(\\", space 1, string x, space 1,
- string "->", space 1, p_exp e, string ")"]
- | ELam (x, SOME t, e) => dBox [string "(\\", space 1, string x, space 1,
- string ":", space 1,
- dBox [string "(", p_typ t, string ")"],
- space 1, string "->", space 1, p_exp e, string ")"]
-
- | EVar x => string x
- | EApp (e1, e2) => dBox [string "(", p_exp e1, break {nsp = 1, offset = 0}, p_exp e2, string ")"]
-
- | ESkip => string "_"
- | ESet (x, e) => dBox [string x, space 1, string "=", space 1, p_exp e]
- | EGet (x1, x2, e) => dBox [dBox [string x1, space 1, string "<-",
- space 1, string x2, string ";", space 1],
- p_exp e]
- | ESeq es => dBox (valOf (foldr (fn (e, NONE) => SOME [p_exp e]
- | (e, SOME ds) => SOME (dBox [p_exp e, string ";", space 1] :: ds))
- NONE es))
- | ELocal (e1, e2) => dBox [string "let", space 1,
- p_exp e1, space 1,
- string "in", space 1,
- p_exp e2, space 1,
- string "end"]
- | EWith (e1, (ESkip, _)) => dBox [p_exp e1, space 1, string "with", space 1, string "end"]
- | EWith (e1, e2) => dBox [p_exp e1, space 1, string "with", p_exp e2, space 1, string "end"]
-
-fun printd d =
- let
- val myStream = SM.openOut {dst = TextIO.stdOut,
- wid = 80}
- in
- description (myStream, d);
- SM.newline myStream;
- SM.closeStream myStream
- end
-
-end
+(* HCoop Domtool (http://hcoop.sourceforge.net/)
+ * Copyright (c) 2006, Adam Chlipala
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *)
+
+(* Pretty-printing Domtool configuration file ASTs *)
+
+signature PRINT_ARG = PRINTFN_INPUT where type rendering = unit
+
+structure PrintArg :> PRINT_ARG = struct
+
+structure SM = TextIOPP
+
+structure PD = PPDescFn(SM)
+open PD
+
+val keyword = string
+val punct = string
+val field = string
+val lit = string
+val ident = string
+
+val context = string
+val typ = string
+val exp = string
+
+fun anchor (_, d) = d
+fun link (_, d) = d
+
+type rendering = unit
+fun openStream () = SM.openOut {dst = TextIO.stdOut, wid = 80}
+fun closeStream s = (SM.newline s; SM.closeStream s)
+
+end
+
+structure Print = PrintFn(PrintArg)
HCoop / hcoop / domtool2.git / blobdiff