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annotate xml/parse.sml @ 1836:276fa06428ba

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Ignore polymorphism in JavaScript calls to custom FFI functions, allowing a kind of simple dynamic typing (unsafe, of course)
author Adam Chlipala <adam@chlipala.net>
date Tue, 11 Dec 2012 15:58:23 -0500
parents 7e2655b25ea1
children 686fa4e7f397
rev   line source
adam@1592 1 (* Copyright (c) 2011, Adam Chlipala
adam@1592 2 * All rights reserved.
adam@1592 3 *
adam@1592 4 * Redistribution and use in source and binary forms, with or without
adam@1592 5 * modification, are permitted provided that the following conditions are met:
adam@1592 6 *
adam@1592 7 * - Redistributions of source code must retain the above copyright notice,
adam@1592 8 * this list of conditions and the following disclaimer.
adam@1592 9 * - Redistributions in binary form must reproduce the above copyright notice,
adam@1592 10 * this list of conditions and the following disclaimer in the documentation
adam@1592 11 * and/or other materials provided with the distribution.
adam@1592 12 * - The names of contributors may not be used to endorse or promote products
adam@1592 13 * derived from this software without specific prior written permission.
adam@1592 14 *
adam@1592 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adam@1592 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adam@1592 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adam@1592 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adam@1592 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adam@1592 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adam@1592 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adam@1592 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adam@1592 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adam@1592 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adam@1592 25 * POSSIBILITY OF SUCH DAMAGE.
adam@1592 26 *)
adam@1592 27
adam@1592 28 (* Building SML code from XML entity tables *)
adam@1592 29
adam@1592 30 fun main () =
adam@1592 31 let
adam@1592 32 fun doFile fname =
adam@1592 33 let
adam@1592 34 val inf = TextIO.openIn fname
adam@1592 35
adam@1592 36 fun loop () =
adam@1592 37 case TextIO.inputLine inf of
adam@1592 38 NONE => TextIO.closeIn inf
adam@1592 39 | SOME line =>
adam@1592 40 if String.isPrefix "<!ENTITY " line then
adam@1592 41 case String.tokens (fn ch => Char.isSpace ch orelse ch = #">") line of
adam@1592 42 "<!ENTITY" :: ent :: exp :: _ =>
adam@1592 43 let
adam@1592 44 val exp = if String.isPrefix "\"&#" exp andalso String.isSuffix ";\"" exp then
adam@1592 45 let
adam@1592 46 val middle = String.substring (exp, 3, size exp - 5)
adam@1592 47 in
adam@1592 48 if CharVector.all Char.isDigit middle then
adam@1592 49 middle
adam@1592 50 else if String.isPrefix "38;#" middle then
adam@1592 51 String.extract (middle, 4, NONE)
adam@1592 52 else
adam@1592 53 raise Fail "Bad entity expression [1]"
adam@1592 54 end
adam@1592 55 else
adam@1592 56 raise Fail "Bad entity expansion [2]"
adam@1592 57 in
adam@1593 58 print ("\t\t(\"" ^ ent ^ "\", " ^ exp ^ ") ::\n");
adam@1592 59 loop ()
adam@1592 60 end
adam@1592 61 | _ => raise Fail "Bad ENTITY line"
adam@1592 62 else
adam@1592 63 loop ()
adam@1592 64 in
adam@1592 65 loop ()
adam@1592 66 end
adam@1592 67 in
adam@1592 68 print "structure Entities = struct\n";
adam@1593 69 print "\tval all =\n";
adam@1592 70 doFile "xml/xhtml-lat1.ent";
adam@1592 71 doFile "xml/xhtml-special.ent";
adam@1592 72 doFile "xml/xhtml-symbol.ent";
adam@1593 73 print "\t[]\n";
adam@1592 74 print "end\n"
adam@1592 75 end
adam@1592 76
adam@1592 77 val () = main ()