source: SVN/cambria/redboot/host/tools/configtool/common/common/flags.cxx @ 1

Last change on this file since 1 was 1, checked in by Tim Harvey, 2 years ago

restored latest version of files from server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 4.7 KB
Line 
1//####COPYRIGHTBEGIN####
2//                                                                         
3// ----------------------------------------------------------------------------
4// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
5//
6// This program is part of the eCos host tools.
7//
8// This program is free software; you can redistribute it and/or modify it
9// under the terms of the GNU General Public License as published by the Free
10// Software Foundation; either version 2 of the License, or (at your option)
11// any later version.
12//
13// This program is distributed in the hope that it will be useful, but WITHOUT
14// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
16// more details.
17//
18// You should have received a copy of the GNU General Public License along with
19// this program; if not, write to the Free Software Foundation, Inc.,
20// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
21//
22// ----------------------------------------------------------------------------
23//                                                                         
24//####COPYRIGHTEND####
25//==========================================================================
26//
27//      flags.cxx
28//
29//      The implementation of build flags extraction from CDL data
30//
31//==========================================================================
32//==========================================================================
33//#####DESCRIPTIONBEGIN####                                             
34//
35// Author(s):           jld
36// Date:                1999-11-08
37//
38//####DESCRIPTIONEND####
39//==========================================================================
40
41#include "flags.hxx"
42#include <cctype>
43
44static const std::string GLOBAL_FLAGS_PREFIX = "CYGBLD_GLOBAL_";
45static const std::string ADD_FLAGS_SUFFIX    = "_ADD";
46static const std::string REMOVE_FLAGS_SUFFIX = "_REMOVE";
47
48// convert a string of space-separated values into a list of strings
49static void string_to_list (std::string input, std::list <std::string> & output) {
50        std::string item;
51        bool space = true;
52        output.clear ();
53
54        for (unsigned int n = 0; n < input.size (); n++) { // for each char in the string
55                if (isspace (input [n])) { // if char is a space
56                        if (! space) { // if previous char not a space
57                                output.push_back (item); // add item to output list
58                                item.erase (); // clear item string
59                                space = true;
60                        }
61                } else { // char is not a space
62                        item += input [n]; // add char to item string
63                        space = false;
64                }
65        }
66
67        if (! space) { // if final char not a space
68                output.push_back (item); // add final item to output list
69        }
70}
71
72// convert a list of strings into a string of space-separated values
73static std::string list_to_string (std::list <std::string> & input) {
74        std::string output;
75
76        for (std::list <std::string>::iterator item = input.begin (); item != input.end (); item++) { // for each item in the list
77                output += * item + " "; // add item to output string followed by a space
78        }
79
80        if (! output.empty ()) { // if the output string is not empty
81                output.resize (output.size () - 1); // remove the trailing space
82        }
83
84        return output;
85}
86
87// return the build flags of the specified category
88std::string get_flags (const CdlConfiguration config, const CdlBuildInfo_Loadable * build_info, const std::string flag_category) {
89        std::list <std::string> flags_list;
90
91        CdlValuable global_flags = dynamic_cast <CdlValuable> (config->lookup (GLOBAL_FLAGS_PREFIX + flag_category));
92        if (global_flags) { // if there are global flags
93                string_to_list (global_flags->get_value (), flags_list);
94        }
95
96        if (build_info) { // if the caller requires flags specific to a particular loadable
97                // process flags to be removed
98                CdlValuable remove_flags = dynamic_cast <CdlValuable> (config->lookup (build_info->name + "_" + flag_category + REMOVE_FLAGS_SUFFIX));
99                if (remove_flags) { // if there are flags to be removed
100                        std::list <std::string> remove_flags_list;
101                        string_to_list (remove_flags->get_value (), remove_flags_list);
102                        for (std::list <std::string>::iterator item = remove_flags_list.begin (); item != remove_flags_list.end (); item++) {
103                                flags_list.remove (* item); // remove the flag from the list
104                        }
105                }
106
107                // process flags to be added
108                CdlValuable add_flags = dynamic_cast <CdlValuable> (config->lookup (build_info->name + "_" + flag_category + ADD_FLAGS_SUFFIX));
109                if (add_flags) { // if there are flags to be added
110                        std::list <std::string> add_flags_list;
111                        string_to_list (add_flags->get_value (), add_flags_list);
112                        flags_list.splice (flags_list.end (), add_flags_list); // splice the additional flags onto the end of the list
113                }
114        }
115
116        return list_to_string (flags_list);
117}
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