1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
------------------------------------------------------------------------------
-- --
-- GNAT SYSTEM UTILITIES --
-- --
-- X S N A M E S T --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2024, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING3. If not, go to --
-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This utility is used to make a new version of the Snames package when new
-- names are added. This version reads a template file from snames.ads-tmpl in
-- which the numbers are all written as $, and generates a new version of the
-- spec file snames.ads (written to snames.ns). It also reads snames.adb-tmpl
-- and generates an updated body (written to snames.nb), and snames.h-tmpl and
-- generates an updated C header file (written to snames.nh).
with Ada.Strings.Unbounded; use Ada.Strings.Unbounded;
with Ada.Strings.Unbounded.Text_IO; use Ada.Strings.Unbounded.Text_IO;
with Ada.Strings.Maps; use Ada.Strings.Maps;
with Ada.Strings.Maps.Constants; use Ada.Strings.Maps.Constants;
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Streams.Stream_IO; use Ada.Streams.Stream_IO;
with GNAT.Spitbol; use GNAT.Spitbol;
with GNAT.Spitbol.Patterns; use GNAT.Spitbol.Patterns;
with XUtil; use XUtil;
procedure XSnamesT is
subtype VString is GNAT.Spitbol.VString;
InS : Ada.Text_IO.File_Type;
InB : Ada.Text_IO.File_Type;
InH : Ada.Text_IO.File_Type;
OutS : Ada.Streams.Stream_IO.File_Type;
OutB : Ada.Streams.Stream_IO.File_Type;
OutH : Ada.Streams.Stream_IO.File_Type;
A, B : VString := Nul;
Line : VString := Nul;
Name0 : VString := Nul;
Name1 : VString := Nul;
Name2 : VString := Nul;
Oval : VString := Nul;
Restl : VString := Nul;
Name_Ref : constant Pattern := Span (' ') * A & Break (' ') * Name0
& Span (' ') * B
& ": constant Name_Id := N + $;"
& Rest * Restl;
Get_Name : constant Pattern := "Name_" & Rest * Name1;
Chk_Low : constant Pattern := Pos (0) & Any (Lower_Set) & Rest & Pos (1);
Findu : constant Pattern := Span ('u') * A;
Is_Conv : constant Pattern := "Convention_" & Rest;
Val : Natural;
Xlate_U_Und : constant Character_Mapping := To_Mapping ("u", "_");
M : Match_Result;
type Header_Symbol is (None, Name, Attr, Conv, Prag);
-- A symbol in the header file
procedure Output_Header_Line (S : Header_Symbol);
-- Output header line
Header_Name : aliased String := "Name";
Header_Attr : aliased String := "Attr";
Header_Conv : aliased String := "Convention";
Header_Prag : aliased String := "Pragma";
-- Prefixes used in the header file
type String_Ptr is access all String;
Header_Prefix : constant array (Header_Symbol) of String_Ptr :=
(null,
Header_Name'Access,
Header_Attr'Access,
Header_Conv'Access,
Header_Prag'Access);
-- Patterns used in the spec file
Get_Attr : constant Pattern := Span (' ') & "Attribute_"
& Break (",)") * Name1;
Get_Conv : constant Pattern := Span (' ') & "Convention_"
& Break (",)") * Name1;
Get_Prag : constant Pattern := Span (' ') & "Pragma_"
& Break (",)") * Name1;
Get_Subt1 : constant Pattern := Span (' ') & "subtype "
& Break (' ') * Name1
& " is " & Rest * Name2;
Get_Subt2 : constant Pattern := Span (' ') & "range "
& Break (' ') * Name1
& " .. " & Break (";") * Name2;
type Header_Symbol_Counter is array (Header_Symbol) of Natural;
Header_Counter : Header_Symbol_Counter := (0, 0, 0, 0, 0);
Header_Current_Symbol : Header_Symbol := None;
Header_Pending_Line : VString := Nul;
-- Subtypes we will emit after an enum
Generated_C_Subtypes : Unbounded_String;
------------------------
-- Output_Header_Line --
------------------------
procedure Output_Header_Line (S : Header_Symbol) is
function Make_Value (V : Integer) return String;
-- Build the definition for the current enumerator (Names are integers
-- offset to N, while other items are enumeration values).
----------------
-- Make_Value --
----------------
function Make_Value (V : Integer) return String is
begin
if S = Name then
return "(First_Name_Id + 256 + " & V & ")";
else
return "" & V;
end if;
end Make_Value;
-- Start of processing for Output_Header_Line
begin
-- Skip all the enumerator for S-prefixed symbols in the header.
-- Of course we are making implicit assumptions:
-- (1) No newline between symbols with the same prefix.
-- (2) Prefix order is the same as in snames.ads.
if Header_Current_Symbol /= S then
declare
Pat : constant Pattern := " "
& Header_Prefix (S).all
& Break (' ') * Name2;
In_Pat : Boolean := False;
begin
if Header_Current_Symbol /= None then
Put_Line (OutH, Header_Pending_Line);
end if;
loop
Line := Get_Line (InH);
if Match (Line, Pat) then
In_Pat := True;
elsif In_Pat then
Header_Pending_Line := Line;
exit;
else
Put_Line (OutH, Line);
end if;
end loop;
Header_Current_Symbol := S;
end;
end if;
-- Now output the line
Put_Line (OutH, " " & Header_Prefix (S).all
& "_" & Name1
& (30 - Natural'Min (29, Length (Name1))) * ' '
& " = "
& Make_Value (Header_Counter (S))
& ",");
Header_Counter (S) := Header_Counter (S) + 1;
end Output_Header_Line;
-- Start of processing for XSnames
begin
Open (InS, In_File, "snames.ads-tmpl");
Open (InB, In_File, "snames.adb-tmpl");
Open (InH, In_File, "snames.h-tmpl");
-- Note that we do not generate snames.{ads,adb,h} directly. Instead
-- we output them to snames.n{s,b,h} so that Makefiles can use
-- move-if-change to not touch previously generated files if the
-- new ones are identical.
Create (OutS, Out_File, "snames.ns");
Create (OutB, Out_File, "snames.nb");
Create (OutH, Out_File, "snames.nh");
Put_Line (OutH, "#ifdef __cplusplus");
Put_Line (OutH, "extern ""C"" {");
Put_Line (OutH, "#endif");
Anchored_Mode := True;
Val := 0;
loop
Line := Get_Line (InB);
exit when Match (Line, " Preset_Names");
Put_Line (OutB, Line);
end loop;
Put_Line (OutB, Line);
LoopN : while not End_Of_File (InS) loop
Line := Get_Line (InS);
if not Match (Line, Name_Ref) then
Put_Line (OutS, Line);
if Match (Line, Get_Attr) then
Output_Header_Line (Attr);
elsif Match (Line, Get_Conv) then
Output_Header_Line (Conv);
elsif Match (Line, Get_Prag) then
Output_Header_Line (Prag);
elsif Match (Line, Get_Subt1) and then Match (Name2, Is_Conv) then
Generated_C_Subtypes := Generated_C_Subtypes & ASCII.LF
& "SUBTYPE (" & Name1 & ", " & Name2
& ", ";
elsif Match (Line, Get_Subt2) and then Match (Name1, Is_Conv) then
Generated_C_Subtypes := Generated_C_Subtypes & ASCII.LF
& " " & Name1 & ", " & Name2 & ')';
end if;
else
if Match (Name0, "Last_") then
Oval := Lpad (V (Val - 1), 3, '0');
else
Oval := Lpad (V (Val), 3, '0');
end if;
Put_Line
(OutS, A & Name0 & B & ": constant Name_Id := N + "
& Oval & ';' & Restl);
if Match (Name0, Get_Name) then
Name0 := Name1;
Val := Val + 1;
if Match (Name0, Findu, M) then
Replace (M, Translate (A, Xlate_U_Und));
Translate (Name0, Lower_Case_Map);
elsif Match (Name0, "UP_", "") then
Translate (Name0, Upper_Case_Map);
elsif Match (Name0, "Op_", "") then
Name0 := 'O' & Translate (Name0, Lower_Case_Map);
else
Translate (Name0, Lower_Case_Map);
end if;
if not Match (Name0, Chk_Low) then
Put_Line (OutB, " """ & Name0 & "#"" &");
end if;
Output_Header_Line (Name);
end if;
end if;
end loop LoopN;
loop
Line := Get_Line (InB);
exit when Match (Line, " ""#"";");
end loop;
Put_Line (OutB, Line);
while not End_Of_File (InB) loop
Line := Get_Line (InB);
Put_Line (OutB, Line);
end loop;
Put_Line (OutH, Header_Pending_Line);
while not End_Of_File (InH) loop
Line := Get_Line (InH);
Put_Line (OutH, Line);
end loop;
Put_Line (OutH, Generated_C_Subtypes);
Put_Line (OutH, "");
Put_Line (OutH, "#ifdef __cplusplus");
Put_Line (OutH, "}");
Put_Line (OutH, "#endif");
end XSnamesT;
|
