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1 (* Title: Pure/Syntax/mixfix.ML |
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2 ID: $Id$ |
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3 Author: Markus Wenzel, TU Muenchen |
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4 |
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5 Mixfix declarations, infixes, binders. Part of the Pure syntax. |
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6 |
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7 TODO: |
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8 note: needs mk_binder_tr/tr' |
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9 Mixfix.mixfix -> mixfix |
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10 remove ....Mixfix |
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11 *) |
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12 |
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13 signature MIXFIX0 = |
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14 sig |
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15 datatype mixfix = |
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16 NoSyn | |
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17 Mixfix of string * int list * int | |
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18 Delimfix of string | |
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19 Infixl of int | |
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20 Infixr of int | |
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21 Binder of string * int |
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22 val max_pri: int |
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23 end; |
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24 |
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25 signature MIXFIX1 = |
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26 sig |
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27 include MIXFIX0 |
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28 val type_name: string -> mixfix -> string |
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29 val const_name: string -> mixfix -> string |
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30 val pure_types: (string * int * mixfix) list |
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31 val pure_syntax: (string * string * mixfix) list |
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32 end; |
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33 |
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34 signature MIXFIX = |
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35 sig |
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36 include MIXFIX1 |
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37 structure SynExt: SYN_EXT |
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38 local open SynExt in |
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39 val syn_ext_types: string list -> (string * int * mixfix) list -> syn_ext |
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40 val syn_ext_consts: string list -> (string * typ * mixfix) list -> syn_ext |
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41 end |
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42 end; |
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43 |
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44 functor MixfixFun(structure Lexicon: LEXICON and SynExt: SYN_EXT |
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45 and SExtension: SEXTENSION): MIXFIX = |
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46 struct |
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47 |
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48 structure SynExt = SynExt; |
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49 open Lexicon SynExt SynExt.Ast SExtension; |
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50 |
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51 |
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52 (** mixfix declarations **) |
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53 |
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54 datatype mixfix = |
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55 NoSyn | |
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56 Mixfix of string * int list * int | |
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57 Delimfix of string | |
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58 Infixl of int | |
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59 Infixr of int | |
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60 Binder of string * int; |
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61 |
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62 |
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63 (* type / const names *) |
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64 |
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65 fun strip ("'" :: c :: cs) = c :: strip cs |
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66 | strip ["'"] = [] |
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67 | strip (c :: cs) = c :: strip cs |
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68 | strip [] = []; |
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69 |
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70 val strip_esc = implode o strip o explode; |
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71 |
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72 |
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73 fun type_name t (Infixl _) = strip_esc t |
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74 | type_name t (Infixr _) = strip_esc t |
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75 | type_name t _ = t; |
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76 |
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77 fun infix_name c = "op " ^ strip_esc c; |
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78 |
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79 fun const_name c (Infixl _) = infix_name c |
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80 | const_name c (Infixr _) = infix_name c |
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81 | const_name c _ = c; |
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82 |
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83 |
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84 (* syn_ext_types *) |
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85 |
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86 fun syn_ext_types all_roots type_decls = |
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87 let |
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88 fun name_of (t, _, mx) = type_name t mx; |
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89 |
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90 fun mk_infix t p1 p2 p3 = |
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91 Mfix ("(_ " ^ t ^ "/ _)", [typeT, typeT] ---> typeT, |
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92 strip_esc t, [p1, p2], p3); |
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93 |
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94 fun mfix_of (_, _, NoSyn) = None |
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95 | mfix_of (t, 2, Infixl p) = Some (mk_infix t p (p + 1) p) |
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96 | mfix_of (t, 2, Infixr p) = Some (mk_infix t (p + 1) p p) |
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97 | mfix_of decl = error ("Bad mixfix declaration for type " ^ |
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98 quote (name_of decl)); |
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99 |
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100 val mfix = mapfilter mfix_of type_decls; |
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101 val xconsts = map name_of type_decls; |
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102 in |
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103 syn_ext all_roots [] mfix xconsts ([], [], [], []) ([], []) |
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104 end; |
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105 |
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106 |
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107 (* syn_ext_consts *) |
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108 |
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109 fun syn_ext_consts all_roots const_decls = |
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110 let |
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111 fun name_of (c, _, mx) = const_name c mx; |
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112 |
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113 fun mk_infix sy ty c p1 p2 p3 = |
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114 [Mfix ("(_ " ^ sy ^ "/ _)", ty, c, [p1, p2], p3), |
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115 Mfix ("op " ^ sy, ty, c, [], max_pri)]; |
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116 |
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117 fun binder_typ _ (Type ("fun", [Type ("fun", [_, ty2]), ty3])) = |
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118 [Type ("idts", []), ty2] ---> ty3 |
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119 | binder_typ c _ = error ("Bad type of binder " ^ quote c); |
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120 |
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121 fun mfix_of (_, _, NoSyn) = [] |
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122 | mfix_of (c, ty, Mixfix (sy, ps, p)) = [Mfix (sy, ty, c, ps, p)] |
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123 | mfix_of (c, ty, Delimfix sy) = [Mfix (sy, ty, c, [], max_pri)] |
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124 | mfix_of (sy, ty, Infixl p) = mk_infix sy ty (infix_name sy) p (p + 1) p |
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125 | mfix_of (sy, ty, Infixr p) = mk_infix sy ty (infix_name sy) (p + 1) p p |
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126 | mfix_of (c, ty, Binder (sy, p)) = |
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127 [Mfix ("(3" ^ sy ^ "_./ _)", binder_typ c ty, sy, [], p)]; |
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128 |
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129 fun binder (c, _, Binder (sy, _)) = Some (sy, c) |
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130 | binder _ = None; |
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131 |
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132 val mfix = flat (map mfix_of const_decls); |
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133 val xconsts = map name_of const_decls; |
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134 val binders = mapfilter binder const_decls; |
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135 val binder_trs = map mk_binder_tr binders; |
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136 val binder_trs' = map (mk_binder_tr' o swap) binders; |
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137 in |
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138 syn_ext all_roots [] mfix xconsts ([], binder_trs, binder_trs', []) ([], []) |
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139 end; |
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140 |
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141 |
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142 |
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143 (** Pure syntax **) |
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144 |
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145 val pure_types = |
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146 map (fn t => (t, 0, NoSyn)) |
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147 (terminals @ [logic, "type", "types", "sort", "classes", args, "idt", |
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148 "idts", "aprop", "asms"]); |
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149 |
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150 val pure_syntax = |
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151 [("_lambda", "[idts, 'a] => ('b => 'a)", Mixfix ("(3%_./ _)", [], 0)), |
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152 ("", "'a => " ^ args, Delimfix "_"), |
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153 ("_args", "['a, " ^ args ^ "] => " ^ args, Delimfix "_,/ _"), |
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154 ("", "id => idt", Delimfix "_"), |
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155 ("_idtyp", "[id, type] => idt", Mixfix ("_::_", [], 0)), |
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156 ("", "idt => idt", Delimfix "'(_')"), |
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157 ("", "idt => idts", Delimfix "_"), |
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158 ("_idts", "[idt, idts] => idts", Mixfix ("_/ _", [1, 0], 0)), |
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159 ("", "id => aprop", Delimfix "_"), |
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160 ("", "var => aprop", Delimfix "_"), |
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161 (applC, "[('b => 'a), " ^ args ^ "] => aprop", |
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162 Mixfix ("(1_/(1'(_')))", [max_pri, 0], max_pri)), |
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163 ("_aprop", "aprop => prop", Delimfix "PROP _"), |
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164 ("", "prop => asms", Delimfix "_"), |
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165 ("_asms", "[prop, asms] => asms", Delimfix "_;/ _"), |
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166 ("_bigimpl", "[asms, prop] => prop", Mixfix ("((3[| _ |]) ==>/ _)", [0, 1], 1)), |
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167 ("_insort", "[type, 'a] => prop", Delimfix "(2'(| _ :/ _ |'))"), |
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168 ("_K", "'a", NoSyn), |
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169 ("_explode", "'a", NoSyn), |
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170 ("_implode", "'a", NoSyn)]; |
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171 |
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172 |
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173 end; |
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174 |