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