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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME COMPONENTS --
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4 -- --
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5 -- A D A . S T R I N G S . W I D E _ W I D E _ S U P E R B O U N D E D --
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6 -- --
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7 -- S p e c --
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8 -- --
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131
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9 -- Copyright (C) 2003-2018, Free Software Foundation, Inc. --
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111
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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17 -- --
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18 -- As a special exception under Section 7 of GPL version 3, you are granted --
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19 -- additional permissions described in the GCC Runtime Library Exception, --
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20 -- version 3.1, as published by the Free Software Foundation. --
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21 -- --
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22 -- You should have received a copy of the GNU General Public License and --
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23 -- a copy of the GCC Runtime Library Exception along with this program; --
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24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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25 -- <http://www.gnu.org/licenses/>. --
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26 -- --
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27 -- GNAT was originally developed by the GNAT team at New York University. --
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28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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29 -- --
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30 ------------------------------------------------------------------------------
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31
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32 -- This non generic package contains most of the implementation of the
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33 -- generic package Ada.Strings.Wide_Wide_Bounded.Generic_Bounded_Length.
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34
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35 -- It defines type Super_String as a discriminated record with the maximum
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36 -- length as the discriminant. Individual instantiations of the package
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37 -- Strings.Wide_Wide_Bounded.Generic_Bounded_Length use this type with
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38 -- an appropriate discriminant value set.
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39
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40 with Ada.Strings.Wide_Wide_Maps;
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41
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42 package Ada.Strings.Wide_Wide_Superbounded is
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43 pragma Preelaborate;
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44
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45 Wide_Wide_NUL : constant Wide_Wide_Character :=
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46 Wide_Wide_Character'Val (0);
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47
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48 -- Wide_Wide_Bounded.Generic_Bounded_Length.Wide_Wide_Bounded_String is
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49 -- derived from Super_String, with the constraint of the maximum length.
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50
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51 type Super_String (Max_Length : Positive) is record
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52 Current_Length : Natural := 0;
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53 Data : Wide_Wide_String (1 .. Max_Length);
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54 -- A previous version had a default initial value for Data, which is
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55 -- no longer necessary, because we now special-case this type in the
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56 -- compiler, so "=" composes properly for descendants of this type.
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57 -- Leaving it out is more efficient.
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58 end record;
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59
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60 -- The subprograms defined for Super_String are similar to those defined
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61 -- for Bounded_Wide_Wide_String, except that they have different names, so
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62 -- that they can be renamed in Wide_Wide_Bounded.Generic_Bounded_Length.
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63
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64 function Super_Length (Source : Super_String) return Natural;
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65
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66 --------------------------------------------------------
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67 -- Conversion, Concatenation, and Selection Functions --
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68 --------------------------------------------------------
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69
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70 function To_Super_String
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71 (Source : Wide_Wide_String;
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72 Max_Length : Natural;
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73 Drop : Truncation := Error) return Super_String;
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74 -- Note the additional parameter Max_Length, which specifies the maximum
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75 -- length setting of the resulting Super_String value.
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76
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77 -- The following procedures have declarations (and semantics) that are
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78 -- exactly analogous to those declared in Ada.Strings.Wide_Wide_Bounded.
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79
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80 function Super_To_String (Source : Super_String) return Wide_Wide_String;
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81
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82 procedure Set_Super_String
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83 (Target : out Super_String;
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84 Source : Wide_Wide_String;
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85 Drop : Truncation := Error);
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86
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87 function Super_Append
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88 (Left : Super_String;
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89 Right : Super_String;
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90 Drop : Truncation := Error) return Super_String;
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91
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92 function Super_Append
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93 (Left : Super_String;
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94 Right : Wide_Wide_String;
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95 Drop : Truncation := Error) return Super_String;
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96
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97 function Super_Append
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98 (Left : Wide_Wide_String;
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99 Right : Super_String;
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100 Drop : Truncation := Error) return Super_String;
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101
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102 function Super_Append
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103 (Left : Super_String;
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104 Right : Wide_Wide_Character;
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105 Drop : Truncation := Error) return Super_String;
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106
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107 function Super_Append
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108 (Left : Wide_Wide_Character;
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109 Right : Super_String;
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110 Drop : Truncation := Error) return Super_String;
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111
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112 procedure Super_Append
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113 (Source : in out Super_String;
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114 New_Item : Super_String;
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115 Drop : Truncation := Error);
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116
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117 procedure Super_Append
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118 (Source : in out Super_String;
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119 New_Item : Wide_Wide_String;
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120 Drop : Truncation := Error);
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121
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122 procedure Super_Append
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123 (Source : in out Super_String;
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124 New_Item : Wide_Wide_Character;
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125 Drop : Truncation := Error);
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126
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127 function Concat
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128 (Left : Super_String;
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129 Right : Super_String) return Super_String;
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130
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131 function Concat
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132 (Left : Super_String;
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133 Right : Wide_Wide_String) return Super_String;
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134
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135 function Concat
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136 (Left : Wide_Wide_String;
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137 Right : Super_String) return Super_String;
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138
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139 function Concat
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140 (Left : Super_String;
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141 Right : Wide_Wide_Character) return Super_String;
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142
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143 function Concat
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144 (Left : Wide_Wide_Character;
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145 Right : Super_String) return Super_String;
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146
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147 function Super_Element
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148 (Source : Super_String;
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149 Index : Positive) return Wide_Wide_Character;
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150
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151 procedure Super_Replace_Element
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152 (Source : in out Super_String;
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153 Index : Positive;
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154 By : Wide_Wide_Character);
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155
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156 function Super_Slice
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157 (Source : Super_String;
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158 Low : Positive;
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159 High : Natural) return Wide_Wide_String;
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160
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161 function Super_Slice
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162 (Source : Super_String;
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163 Low : Positive;
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164 High : Natural) return Super_String;
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165
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166 procedure Super_Slice
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167 (Source : Super_String;
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168 Target : out Super_String;
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169 Low : Positive;
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170 High : Natural);
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171
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172 function "="
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173 (Left : Super_String;
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174 Right : Super_String) return Boolean;
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175
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176 function Equal
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177 (Left : Super_String;
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178 Right : Super_String) return Boolean renames "=";
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179
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180 function Equal
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181 (Left : Super_String;
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182 Right : Wide_Wide_String) return Boolean;
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183
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184 function Equal
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185 (Left : Wide_Wide_String;
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186 Right : Super_String) return Boolean;
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187
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188 function Less
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189 (Left : Super_String;
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190 Right : Super_String) return Boolean;
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191
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192 function Less
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193 (Left : Super_String;
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194 Right : Wide_Wide_String) return Boolean;
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195
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196 function Less
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197 (Left : Wide_Wide_String;
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198 Right : Super_String) return Boolean;
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199
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200 function Less_Or_Equal
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201 (Left : Super_String;
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202 Right : Super_String) return Boolean;
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203
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204 function Less_Or_Equal
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205 (Left : Super_String;
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206 Right : Wide_Wide_String) return Boolean;
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207
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208 function Less_Or_Equal
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209 (Left : Wide_Wide_String;
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210 Right : Super_String) return Boolean;
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211
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212 function Greater
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213 (Left : Super_String;
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214 Right : Super_String) return Boolean;
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215
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216 function Greater
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217 (Left : Super_String;
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218 Right : Wide_Wide_String) return Boolean;
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219
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220 function Greater
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221 (Left : Wide_Wide_String;
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222 Right : Super_String) return Boolean;
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223
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224 function Greater_Or_Equal
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225 (Left : Super_String;
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226 Right : Super_String) return Boolean;
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227
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228 function Greater_Or_Equal
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229 (Left : Super_String;
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230 Right : Wide_Wide_String) return Boolean;
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231
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232 function Greater_Or_Equal
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233 (Left : Wide_Wide_String;
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234 Right : Super_String) return Boolean;
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235
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236 ----------------------
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237 -- Search Functions --
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238 ----------------------
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239
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240 function Super_Index
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241 (Source : Super_String;
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242 Pattern : Wide_Wide_String;
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243 Going : Direction := Forward;
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244 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
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245 Wide_Wide_Maps.Identity)
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246 return Natural;
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247
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248 function Super_Index
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249 (Source : Super_String;
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250 Pattern : Wide_Wide_String;
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251 Going : Direction := Forward;
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252 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
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253 return Natural;
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254
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255 function Super_Index
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256 (Source : Super_String;
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257 Set : Wide_Wide_Maps.Wide_Wide_Character_Set;
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258 Test : Membership := Inside;
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259 Going : Direction := Forward) return Natural;
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260
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261 function Super_Index
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262 (Source : Super_String;
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263 Pattern : Wide_Wide_String;
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264 From : Positive;
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265 Going : Direction := Forward;
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266 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
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267 Wide_Wide_Maps.Identity)
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268 return Natural;
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269
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270 function Super_Index
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271 (Source : Super_String;
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272 Pattern : Wide_Wide_String;
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273 From : Positive;
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274 Going : Direction := Forward;
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275 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
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276 return Natural;
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277
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278 function Super_Index
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279 (Source : Super_String;
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280 Set : Wide_Wide_Maps.Wide_Wide_Character_Set;
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281 From : Positive;
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282 Test : Membership := Inside;
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283 Going : Direction := Forward) return Natural;
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284
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285 function Super_Index_Non_Blank
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286 (Source : Super_String;
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287 Going : Direction := Forward) return Natural;
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288
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289 function Super_Index_Non_Blank
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290 (Source : Super_String;
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291 From : Positive;
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292 Going : Direction := Forward) return Natural;
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293
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294 function Super_Count
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295 (Source : Super_String;
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296 Pattern : Wide_Wide_String;
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297 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
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298 Wide_Wide_Maps.Identity)
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299 return Natural;
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300
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301 function Super_Count
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302 (Source : Super_String;
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303 Pattern : Wide_Wide_String;
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304 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
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305 return Natural;
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306
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307 function Super_Count
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308 (Source : Super_String;
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309 Set : Wide_Wide_Maps.Wide_Wide_Character_Set) return Natural;
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310
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311 procedure Super_Find_Token
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312 (Source : Super_String;
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313 Set : Wide_Wide_Maps.Wide_Wide_Character_Set;
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314 From : Positive;
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315 Test : Membership;
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316 First : out Positive;
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317 Last : out Natural);
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318
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319 procedure Super_Find_Token
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320 (Source : Super_String;
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321 Set : Wide_Wide_Maps.Wide_Wide_Character_Set;
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322 Test : Membership;
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323 First : out Positive;
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324 Last : out Natural);
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325
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326 ------------------------------------
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327 -- String Translation Subprograms --
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328 ------------------------------------
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329
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330 function Super_Translate
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331 (Source : Super_String;
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332 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping)
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333 return Super_String;
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334
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335 procedure Super_Translate
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336 (Source : in out Super_String;
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337 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping);
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338
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339 function Super_Translate
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340 (Source : Super_String;
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341 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
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342 return Super_String;
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343
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344 procedure Super_Translate
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345 (Source : in out Super_String;
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346 Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function);
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347
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348 ---------------------------------------
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349 -- String Transformation Subprograms --
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350 ---------------------------------------
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351
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352 function Super_Replace_Slice
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353 (Source : Super_String;
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354 Low : Positive;
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355 High : Natural;
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356 By : Wide_Wide_String;
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357 Drop : Truncation := Error) return Super_String;
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358
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359 procedure Super_Replace_Slice
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360 (Source : in out Super_String;
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361 Low : Positive;
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362 High : Natural;
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363 By : Wide_Wide_String;
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364 Drop : Truncation := Error);
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365
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366 function Super_Insert
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367 (Source : Super_String;
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368 Before : Positive;
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369 New_Item : Wide_Wide_String;
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370 Drop : Truncation := Error) return Super_String;
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371
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372 procedure Super_Insert
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373 (Source : in out Super_String;
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374 Before : Positive;
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375 New_Item : Wide_Wide_String;
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376 Drop : Truncation := Error);
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377
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378 function Super_Overwrite
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379 (Source : Super_String;
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380 Position : Positive;
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381 New_Item : Wide_Wide_String;
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382 Drop : Truncation := Error) return Super_String;
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383
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384 procedure Super_Overwrite
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385 (Source : in out Super_String;
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386 Position : Positive;
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387 New_Item : Wide_Wide_String;
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388 Drop : Truncation := Error);
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389
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390 function Super_Delete
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391 (Source : Super_String;
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392 From : Positive;
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393 Through : Natural) return Super_String;
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394
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395 procedure Super_Delete
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396 (Source : in out Super_String;
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397 From : Positive;
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398 Through : Natural);
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399
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400 ---------------------------------
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401 -- String Selector Subprograms --
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402 ---------------------------------
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403
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404 function Super_Trim
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405 (Source : Super_String;
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406 Side : Trim_End) return Super_String;
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407
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408 procedure Super_Trim
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409 (Source : in out Super_String;
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410 Side : Trim_End);
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411
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412 function Super_Trim
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413 (Source : Super_String;
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414 Left : Wide_Wide_Maps.Wide_Wide_Character_Set;
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415 Right : Wide_Wide_Maps.Wide_Wide_Character_Set) return Super_String;
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416
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417 procedure Super_Trim
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418 (Source : in out Super_String;
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419 Left : Wide_Wide_Maps.Wide_Wide_Character_Set;
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420 Right : Wide_Wide_Maps.Wide_Wide_Character_Set);
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421
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422 function Super_Head
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423 (Source : Super_String;
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424 Count : Natural;
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425 Pad : Wide_Wide_Character := Wide_Wide_Space;
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426 Drop : Truncation := Error) return Super_String;
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427
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428 procedure Super_Head
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429 (Source : in out Super_String;
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430 Count : Natural;
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431 Pad : Wide_Wide_Character := Wide_Wide_Space;
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432 Drop : Truncation := Error);
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433
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434 function Super_Tail
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435 (Source : Super_String;
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436 Count : Natural;
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437 Pad : Wide_Wide_Character := Wide_Wide_Space;
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438 Drop : Truncation := Error) return Super_String;
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439
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440 procedure Super_Tail
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441 (Source : in out Super_String;
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442 Count : Natural;
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443 Pad : Wide_Wide_Character := Wide_Wide_Space;
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444 Drop : Truncation := Error);
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445
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446 ------------------------------------
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447 -- String Constructor Subprograms --
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448 ------------------------------------
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449
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450 -- Note: in some of the following routines, there is an extra parameter
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451 -- Max_Length which specifies the value of the maximum length for the
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452 -- resulting Super_String value.
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453
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454 function Times
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455 (Left : Natural;
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456 Right : Wide_Wide_Character;
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457 Max_Length : Positive) return Super_String;
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458 -- Note the additional parameter Max_Length
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459
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460 function Times
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461 (Left : Natural;
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462 Right : Wide_Wide_String;
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463 Max_Length : Positive) return Super_String;
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464 -- Note the additional parameter Max_Length
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465
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466 function Times
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467 (Left : Natural;
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468 Right : Super_String) return Super_String;
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469
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470 function Super_Replicate
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471 (Count : Natural;
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472 Item : Wide_Wide_Character;
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473 Drop : Truncation := Error;
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474 Max_Length : Positive) return Super_String;
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475 -- Note the additional parameter Max_Length
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476
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477 function Super_Replicate
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478 (Count : Natural;
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479 Item : Wide_Wide_String;
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480 Drop : Truncation := Error;
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481 Max_Length : Positive) return Super_String;
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482 -- Note the additional parameter Max_Length
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483
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484 function Super_Replicate
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485 (Count : Natural;
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486 Item : Super_String;
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487 Drop : Truncation := Error) return Super_String;
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488
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489 private
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490 -- Pragma Inline declarations
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491
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492 pragma Inline ("=");
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493 pragma Inline (Less);
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494 pragma Inline (Less_Or_Equal);
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495 pragma Inline (Greater);
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496 pragma Inline (Greater_Or_Equal);
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497 pragma Inline (Concat);
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498 pragma Inline (Super_Count);
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499 pragma Inline (Super_Element);
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500 pragma Inline (Super_Find_Token);
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501 pragma Inline (Super_Index);
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502 pragma Inline (Super_Index_Non_Blank);
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503 pragma Inline (Super_Length);
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504 pragma Inline (Super_Replace_Element);
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505 pragma Inline (Super_Slice);
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506 pragma Inline (Super_To_String);
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507
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508 end Ada.Strings.Wide_Wide_Superbounded;
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