Factor common printing functionality between text and HTML into a functor

[hcoop/domtool2.git] / src / printFn.sig

diff --git a/src/printFn.sig b/src/printFn.sig
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+(* 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 PRINTFN_INPUT = sig
+
+    structure PD : PP_DESC
+
+    val keyword : string -> PD.pp_desc
+    val punct : string -> PD.pp_desc
+    val field : string -> PD.pp_desc
+    val lit : string -> PD.pp_desc
+    val ident : string -> PD.pp_desc
+
+    val context : string -> PD.pp_desc
+    val typ : string -> PD.pp_desc
+    val exp : string -> PD.pp_desc
+
+    val anchor : string * PD.pp_desc -> PD.pp_desc
+    val link : string * PD.pp_desc -> PD.pp_desc
+
+    type rendering
+    val openStream : unit -> PD.PPS.stream
+    val closeStream : PD.PPS.stream -> rendering
+
+end
+
+signature PRINTFN_OUTPUT = sig
+
+    structure PD : PP_DESC
+    type rendering
+
+    val p_pred : Ast.pred -> PD.pp_desc
+    val p_typ : Ast.typ -> PD.pp_desc
+    val p_exp : Ast.exp -> PD.pp_desc
+    val p_decl : Ast.decl' -> PD.pp_desc
+    val p_decl_fref : Ast.decl' -> PD.pp_desc
+
+    val output : PD.pp_desc -> rendering
+    val preface : string * PD.pp_desc -> rendering
+
+end