2015-10-04 14:51:05 -04:00
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/*
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2008-06-02 17:41:35 -04:00
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Copyright (C) 2006 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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2008-09-10 11:03:30 -04:00
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#include <cctype>
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2015-09-05 05:36:16 -04:00
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#include <algorithm>
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2008-06-02 17:41:35 -04:00
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2008-09-10 11:03:30 -04:00
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#include <cstring>
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#include <cstdlib>
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2008-06-02 17:41:35 -04:00
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2009-02-25 13:26:51 -05:00
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#include "pbd/enumwriter.h"
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#include "pbd/error.h"
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#include "pbd/compose.h"
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2008-06-02 17:41:35 -04:00
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using namespace std;
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using namespace PBD;
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#include "i18n.h"
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EnumWriter* EnumWriter::_instance = 0;
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map<string,string> EnumWriter::hack_table;
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2015-10-04 14:51:05 -04:00
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static int
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nocase_cmp(const string & s1, const string& s2)
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2008-06-02 17:41:35 -04:00
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{
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string::const_iterator it1 = s1.begin();
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string::const_iterator it2 = s2.begin();
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2015-10-04 14:51:05 -04:00
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while ((it1 != s1.end()) && (it2 != s2.end())) {
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2008-06-02 17:41:35 -04:00
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if(::toupper(*it1) != ::toupper(*it2)) {//letters differ?
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// return -1 to indicate 'smaller than', 1 otherwise
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2015-10-04 14:51:05 -04:00
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return (::toupper(*it1) < ::toupper(*it2)) ? -1 : 1;
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2008-06-02 17:41:35 -04:00
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}
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++it1;
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++it2;
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}
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string::size_type size1 = s1.size();
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string::size_type size2 = s2.size();
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//return -1,0 or 1 according to strings' lengths
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if (size1 == size2) {
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return 0;
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}
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return (size1 < size2) ? -1 : 1;
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}
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2009-12-30 11:48:58 -05:00
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EnumWriter&
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EnumWriter::instance()
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2008-06-02 17:41:35 -04:00
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{
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if (_instance == 0) {
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_instance = new EnumWriter;
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2015-10-04 14:51:05 -04:00
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}
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2009-12-30 11:48:58 -05:00
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return *_instance;
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}
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2011-12-15 09:33:20 -05:00
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void
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EnumWriter::destroy ()
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{
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delete _instance;
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_instance = 0;
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}
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2009-12-30 11:48:58 -05:00
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EnumWriter::EnumWriter ()
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{
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2008-06-02 17:41:35 -04:00
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}
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EnumWriter::~EnumWriter ()
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{
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}
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void
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EnumWriter::register_distinct (string type, vector<int> v, vector<string> s)
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{
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pair<string,EnumRegistration> newpair;
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pair<Registry::iterator,bool> result;
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newpair.first = type;
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newpair.second = EnumRegistration (v, s, false);
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result = registry.insert (newpair);
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if (!result.second) {
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warning << string_compose (_("enum type \"%1\" already registered with the enum writer"), type) << endmsg;
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}
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}
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void
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EnumWriter::register_bits (string type, vector<int> v, vector<string> s)
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{
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pair<string,EnumRegistration> newpair;
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pair<Registry::iterator,bool> result;
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newpair.first = type;
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newpair.second = EnumRegistration (v, s, true);
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result = registry.insert (newpair);
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if (!result.second) {
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warning << _("enum type \"%1\" already registered with the enum writer") << endmsg;
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}
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}
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string
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EnumWriter::write (string type, int value)
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{
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Registry::iterator x = registry.find (type);
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if (x == registry.end()) {
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error << string_compose (_("EnumWriter: unknown enumeration type \"%1\""), type) << endmsg;
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2012-06-18 14:28:19 -04:00
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throw unknown_enumeration (type);
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}
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if (x->second.bitwise) {
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return write_bits (x->second, value);
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} else {
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return write_distinct (x->second, value);
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}
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}
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int
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EnumWriter::read (string type, string value)
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{
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Registry::iterator x = registry.find (type);
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if (x == registry.end()) {
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error << string_compose (_("EnumWriter: unknown enumeration type \"%1\""), type) << endmsg;
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throw unknown_enumeration (type);
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}
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if (x->second.bitwise) {
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return read_bits (x->second, value);
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} else {
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return read_distinct (x->second, value);
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}
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}
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string
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EnumWriter::write_bits (EnumRegistration& er, int value)
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{
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vector<int>::iterator i;
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vector<string>::iterator s;
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string result;
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for (i = er.values.begin(), s = er.names.begin(); i != er.values.end(); ++i, ++s) {
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if (value & (*i)) {
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if (!result.empty()) {
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result += ',';
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}
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result += (*s);
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}
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}
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return result;
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}
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string
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EnumWriter::write_distinct (EnumRegistration& er, int value)
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{
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vector<int>::iterator i;
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vector<string>::iterator s;
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for (i = er.values.begin(), s = er.names.begin(); i != er.values.end(); ++i, ++s) {
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if (value == (*i)) {
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return (*s);
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}
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}
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return string();
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}
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2010-09-22 11:21:06 -04:00
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int
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EnumWriter::validate (EnumRegistration& er, int val) const
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{
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if (er.values.empty()) {
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return val;
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}
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if (val == 0) {
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/* zero is always a legal value for our enumerations, just about
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*/
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return val;
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}
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vector<int>::iterator i;
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string enum_name = _("unknown enumeration");
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2015-09-04 18:00:16 -04:00
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for (Registry::const_iterator x = registry.begin(); x != registry.end(); ++x) {
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2010-09-22 11:21:06 -04:00
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if (&er == &(*x).second) {
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enum_name = (*x).first;
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}
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}
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2015-10-04 14:51:05 -04:00
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2010-09-22 11:21:06 -04:00
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for (i = er.values.begin(); i != er.values.end(); ++i) {
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if (*i == val) {
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return val;
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}
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}
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2015-10-04 14:51:05 -04:00
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2010-09-22 11:21:06 -04:00
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warning << string_compose (_("Illegal value loaded for %1 (%2) - %3 used instead"),
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enum_name, val, er.names.front())
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2010-09-22 11:21:06 -04:00
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<< endmsg;
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return er.values.front();
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}
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2015-09-04 18:00:16 -04:00
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int
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EnumWriter::validate_bitwise (EnumRegistration& er, int val) const
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{
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int result = 0;
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for (int p = 1; p <= val; p = p << 1) {
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if (std::find (er.values.begin(), er.values.end(), p) == er.values.end()) {
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continue;
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}
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if (p & val) {
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result |= p;
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}
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}
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return result;
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}
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2008-06-02 17:41:35 -04:00
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int
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EnumWriter::read_bits (EnumRegistration& er, string str)
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{
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vector<int>::iterator i;
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vector<string>::iterator s;
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int result = 0;
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bool found = false;
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string::size_type comma;
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/* catch old-style hex numerics */
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if (str.length() > 2 && str[0] == '0' && str[1] == 'x') {
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2010-09-22 11:21:06 -04:00
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int val = strtol (str.c_str(), (char **) 0, 16);
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2015-09-04 18:00:16 -04:00
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return validate_bitwise (er, val);
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2008-06-02 17:41:35 -04:00
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}
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/* catch old style dec numerics */
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if (strspn (str.c_str(), "0123456789") == str.length()) {
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2010-09-22 11:21:06 -04:00
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int val = strtol (str.c_str(), (char **) 0, 10);
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2015-09-04 18:00:16 -04:00
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return validate_bitwise (er, val);
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2010-09-22 11:21:06 -04:00
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}
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2008-06-02 17:41:35 -04:00
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do {
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comma = str.find_first_of (',');
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string segment = str.substr (0, comma);
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for (i = er.values.begin(), s = er.names.begin(); i != er.values.end(); ++i, ++s) {
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if (segment == *s || nocase_cmp (segment, *s) == 0) {
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result |= (*i);
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found = true;
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}
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}
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if (comma == string::npos) {
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break;
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}
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str = str.substr (comma+1);
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} while (true);
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if (!found) {
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throw unknown_enumeration (str);
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2008-06-02 17:41:35 -04:00
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}
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return result;
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}
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int
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EnumWriter::read_distinct (EnumRegistration& er, string str)
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{
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vector<int>::iterator i;
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vector<string>::iterator s;
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2014-07-01 17:43:00 -04:00
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/* first, check to see if there a hack for the name we're looking up */
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map<string,string>::iterator x;
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if ((x = hack_table.find (str)) != hack_table.end()) {
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cerr << "found hack for " << str << " = " << x->second << endl;
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str = x->second;
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for (i = er.values.begin(), s = er.names.begin(); i != er.values.end(); ++i, ++s) {
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if (str == (*s) || nocase_cmp (str, *s) == 0) {
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return (*i);
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}
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}
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}
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2008-06-02 17:41:35 -04:00
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/* catch old-style hex numerics */
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if (str.length() > 2 && str[0] == '0' && str[1] == 'x') {
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2010-09-22 11:21:06 -04:00
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int val = strtol (str.c_str(), (char **) 0, 16);
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return validate (er, val);
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2008-06-02 17:41:35 -04:00
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}
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/* catch old style dec numerics */
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if (strspn (str.c_str(), "0123456789") == str.length()) {
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2010-09-22 11:21:06 -04:00
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int val = strtol (str.c_str(), (char **) 0, 10);
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return validate (er, val);
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}
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2008-06-02 17:41:35 -04:00
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for (i = er.values.begin(), s = er.names.begin(); i != er.values.end(); ++i, ++s) {
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if (str == (*s) || nocase_cmp (str, *s) == 0) {
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return (*i);
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}
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}
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2012-06-18 14:28:19 -04:00
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throw unknown_enumeration(str);
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2008-06-02 17:41:35 -04:00
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}
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void
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EnumWriter::add_to_hack_table (string str, string hacked)
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{
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hack_table[str] = hacked;
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}
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