adamc@96: (* Copyright (c) 2008, Adam Chlipala adamc@96: * All rights reserved. adamc@96: * adamc@96: * Redistribution and use in source and binary forms, with or without adamc@96: * modification, are permitted provided that the following conditions are met: adamc@96: * adamc@96: * - Redistributions of source code must retain the above copyright notice, adamc@96: * this list of conditions and the following disclaimer. adamc@96: * - Redistributions in binary form must reproduce the above copyright notice, adamc@96: * this list of conditions and the following disclaimer in the documentation adamc@96: * and/or other materials provided with the distribution. adamc@96: * - The names of contributors may not be used to endorse or promote products adamc@96: * derived from this software without specific prior written permission. adamc@96: * adamc@96: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" adamc@96: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE adamc@96: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE adamc@96: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE adamc@96: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR adamc@96: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF adamc@96: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS adamc@96: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN adamc@96: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) adamc@96: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE adamc@96: * POSSIBILITY OF SUCH DAMAGE. adamc@96: *) adamc@96: adamc@96: structure MonoOpt :> MONO_OPT = struct adamc@96: adamc@96: open Mono adamc@96: structure U = MonoUtil adamc@96: adamc@96: fun typ t = t adamc@96: fun decl d = d adamc@96: adamc@107: fun attrifyInt n = adamc@107: if n < 0 then adamc@107: "-" ^ Int64.toString (Int64.~ n) adamc@107: else adamc@107: Int64.toString n adamc@107: adamc@107: fun attrifyFloat n = adamc@107: if n < 0.0 then adamc@107: "-" ^ Real.toString (Real.~ n) adamc@107: else adamc@107: Real.toString n adamc@107: adamc@107: val attrifyString = String.translate (fn #"\"" => """ adamc@135: | #"&" => "&" adamc@107: | ch => if Char.isPrint ch then adamc@107: str ch adamc@107: else adamc@107: "&#" ^ Int.toString (ord ch) ^ ";") adamc@107: adamc@120: val urlifyInt = attrifyInt adamc@120: val urlifyFloat = attrifyFloat adamc@120: adamc@135: val htmlifyString = String.translate (fn ch => case ch of adamc@135: #"<" => "<" adamc@135: | #"&" => "&" adamc@135: | _ => adamc@135: if Char.isPrint ch orelse Char.isSpace ch then adamc@135: str ch adamc@135: else adamc@135: "&#" ^ Int.toString (ord ch) ^ ";") adamc@135: adamc@120: fun hexIt ch = adamc@120: let adamc@120: val s = Int.fmt StringCvt.HEX (ord ch) adamc@120: in adamc@120: case size s of adamc@120: 0 => "00" adamc@120: | 1 => "0" ^ s adamc@120: | _ => s adamc@120: end adamc@120: adamc@120: val urlifyString = String.translate (fn #" " => "+" adamc@120: | ch => if Char.isAlphaNum ch then adamc@120: str ch adamc@120: else adamc@120: "%" ^ hexIt ch) adamc@183: adamc@96: fun exp e = adamc@96: case e of adamc@96: EPrim (Prim.String s) => adamc@96: let adamc@96: val (_, chs) = adamc@96: CharVector.foldl (fn (ch, (lastSpace, chs)) => adamc@96: let adamc@96: val isSpace = Char.isSpace ch adamc@96: in adamc@96: if isSpace andalso lastSpace then adamc@96: (true, chs) adamc@96: else adamc@96: (isSpace, ch :: chs) adamc@96: end) adamc@96: (false, []) s adamc@96: in adamc@96: EPrim (Prim.String (String.implode (rev chs))) adamc@96: end adamc@96: adamc@96: | EStrcat ((EPrim (Prim.String s1), loc), (EPrim (Prim.String s2), _)) => adamc@96: let adamc@96: val s = adamc@96: if size s1 > 0 andalso size s2 > 0 adamc@96: andalso Char.isSpace (String.sub (s1, size s1 - 1)) adamc@96: andalso Char.isSpace (String.sub (s2, 0)) then adamc@96: s1 ^ String.extract (s2, 1, NONE) adamc@96: else adamc@96: s1 ^ s2 adamc@96: in adamc@96: EPrim (Prim.String s) adamc@96: end adamc@105: adamc@105: | EStrcat ((EPrim (Prim.String s1), loc), (EStrcat ((EPrim (Prim.String s2), _), rest), _)) => adamc@105: let adamc@105: val s = adamc@105: if size s1 > 0 andalso size s2 > 0 adamc@105: andalso Char.isSpace (String.sub (s1, size s1 - 1)) adamc@105: andalso Char.isSpace (String.sub (s2, 0)) then adamc@105: s1 ^ String.extract (s2, 1, NONE) adamc@105: else adamc@105: s1 ^ s2 adamc@105: in adamc@105: EStrcat ((EPrim (Prim.String s), loc), rest) adamc@105: end adamc@105: adamc@105: | EStrcat ((EStrcat (e1, e2), loc), e3) => adamc@105: optExp (EStrcat (e1, (EStrcat (e2, e3), loc)), loc) adamc@105: adamc@106: | EWrite (EStrcat (e1, e2), loc) => adamc@106: ESeq ((optExp (EWrite e1, loc), loc), adamc@106: (optExp (EWrite e2, loc), loc)) adamc@106: adamc@183: | ESeq ((EWrite (EPrim (Prim.String s1), _), loc), adamc@183: (EWrite (EPrim (Prim.String s2), _), _)) => adamc@183: EWrite (EPrim (Prim.String (s1 ^ s2)), loc) adamc@183: adamc@135: | EFfiApp ("Basis", "htmlifyString", [(EPrim (Prim.String s), _)]) => adamc@135: EPrim (Prim.String (htmlifyString s)) adamc@135: | EWrite (EFfiApp ("Basis", "htmlifyString", [(EPrim (Prim.String s), _)]), loc) => adamc@135: EWrite (EPrim (Prim.String (htmlifyString s)), loc) adamc@135: | EWrite (EFfiApp ("Basis", "htmlifyString", [e]), _) => adamc@135: EFfiApp ("Basis", "htmlifyString_w", [e]) adamc@135: adamc@107: | EFfiApp ("Basis", "attrifyInt", [(EPrim (Prim.Int n), _)]) => adamc@107: EPrim (Prim.String (attrifyInt n)) adamc@107: | EWrite (EFfiApp ("Basis", "attrifyInt", [(EPrim (Prim.Int n), _)]), loc) => adamc@107: EWrite (EPrim (Prim.String (attrifyInt n)), loc) adamc@106: | EWrite (EFfiApp ("Basis", "attrifyInt", [e]), _) => adamc@106: EFfiApp ("Basis", "attrifyInt_w", [e]) adamc@107: adamc@107: | EFfiApp ("Basis", "attrifyFloat", [(EPrim (Prim.Float n), _)]) => adamc@107: EPrim (Prim.String (attrifyFloat n)) adamc@107: | EWrite (EFfiApp ("Basis", "attrifyFloat", [(EPrim (Prim.Float n), _)]), loc) => adamc@107: EWrite (EPrim (Prim.String (attrifyFloat n)), loc) adamc@106: | EWrite (EFfiApp ("Basis", "attrifyFloat", [e]), _) => adamc@106: EFfiApp ("Basis", "attrifyFloat_w", [e]) adamc@107: adamc@107: | EFfiApp ("Basis", "attrifyString", [(EPrim (Prim.String s), _)]) => adamc@107: EPrim (Prim.String (attrifyString s)) adamc@107: | EWrite (EFfiApp ("Basis", "attrifyString", [(EPrim (Prim.String s), _)]), loc) => adamc@107: EWrite (EPrim (Prim.String (attrifyString s)), loc) adamc@106: | EWrite (EFfiApp ("Basis", "attrifyString", [e]), _) => adamc@106: EFfiApp ("Basis", "attrifyString_w", [e]) adamc@106: adamc@120: | EFfiApp ("Basis", "urlifyInt", [(EPrim (Prim.Int n), _)]) => adamc@120: EPrim (Prim.String (urlifyInt n)) adamc@120: | EWrite (EFfiApp ("Basis", "urlifyInt", [(EPrim (Prim.Int n), _)]), loc) => adamc@120: EWrite (EPrim (Prim.String (urlifyInt n)), loc) adamc@120: | EWrite (EFfiApp ("Basis", "urlifyInt", [e]), _) => adamc@120: EFfiApp ("Basis", "urlifyInt_w", [e]) adamc@120: adamc@120: | EFfiApp ("Basis", "urlifyFloat", [(EPrim (Prim.Float n), _)]) => adamc@120: EPrim (Prim.String (urlifyFloat n)) adamc@120: | EWrite (EFfiApp ("Basis", "urlifyFloat", [(EPrim (Prim.Float n), _)]), loc) => adamc@120: EWrite (EPrim (Prim.String (urlifyFloat n)), loc) adamc@120: | EWrite (EFfiApp ("Basis", "urlifyFloat", [e]), _) => adamc@120: EFfiApp ("Basis", "urlifyFloat_w", [e]) adamc@120: adamc@120: | EFfiApp ("Basis", "urlifyString", [(EPrim (Prim.String s), _)]) => adamc@120: EPrim (Prim.String (urlifyString s)) adamc@120: | EWrite (EFfiApp ("Basis", "urlifyString", [(EPrim (Prim.String s), _)]), loc) => adamc@120: EWrite (EPrim (Prim.String (urlifyString s)), loc) adamc@120: | EWrite (EFfiApp ("Basis", "urlifyString", [e]), _) => adamc@120: EFfiApp ("Basis", "urlifyString_w", [e]) adamc@120: adamc@184: adamc@184: | EWrite (ECase (discE, pes, {disc, ...}), loc) => adamc@184: optExp (ECase (discE, adamc@184: map (fn (p, e) => (p, (EWrite e, loc))) pes, adamc@184: {disc = disc, adamc@184: result = (TRecord [], loc)}), loc) adamc@184: adamc@96: | _ => e adamc@96: adamc@105: and optExp e = #1 (U.Exp.map {typ = typ, exp = exp} e) adamc@105: adamc@96: val optimize = U.File.map {typ = typ, exp = exp, decl = decl} adamc@96: adamc@96: end