xref: /netbsd-src/external/gpl3/gdb/dist/gdb/split-name.c (revision 2dd295436a0082eb4f8d294f4aa73c223413d0f2)
1 /* Split a symbol name.
2 
3    Copyright (C) 2022-2023 Free Software Foundation, Inc.
4 
5    This file is part of GDB.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19 
20 #include "defs.h"
21 #include "split-name.h"
22 #include "cp-support.h"
23 
24 /* See split-name.h.  */
25 
26 std::vector<gdb::string_view>
27 split_name (const char *name, split_style style)
28 {
29   std::vector<gdb::string_view> result;
30   unsigned int previous_len = 0;
31 
32   switch (style)
33     {
34     case split_style::CXX:
35       for (unsigned int current_len = cp_find_first_component (name);
36 	   name[current_len] != '\0';
37 	   current_len += cp_find_first_component (name + current_len))
38 	{
39 	  gdb_assert (name[current_len] == ':');
40 	  result.emplace_back (&name[previous_len],
41 			       current_len - previous_len);
42 	  /* Skip the '::'.  */
43 	  current_len += 2;
44 	  previous_len = current_len;
45 	}
46       break;
47 
48     case split_style::UNDERSCORE:
49       /* Handle the Ada encoded (aka mangled) form here.  */
50       for (const char *iter = strstr (name, "__");
51 	   iter != nullptr;
52 	   iter = strstr (iter, "__"))
53 	{
54 	  result.emplace_back (&name[previous_len],
55 			       iter - &name[previous_len]);
56 	  iter += 2;
57 	  previous_len = iter - name;
58 	}
59       break;
60 
61     case split_style::DOT:
62       /* D and Go-style names.  */
63       for (const char *iter = strchr (name, '.');
64 	   iter != nullptr;
65 	   iter = strchr (iter, '.'))
66 	{
67 	  result.emplace_back (&name[previous_len],
68 			       iter - &name[previous_len]);
69 	  ++iter;
70 	  previous_len = iter - name;
71 	}
72       break;
73 
74     default:
75       break;
76     }
77 
78   result.emplace_back (&name[previous_len]);
79   return result;
80 }
81 
82