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89 lines
4.4 KiB
C++
89 lines
4.4 KiB
C++
// tinygettext - A gettext replacement that works directly on .po files
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// Copyright (C) 2006 Ingo Ruhnke <grumbel@gmx.de>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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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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//
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#include "plural_forms.hpp"
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#include <map>
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namespace tinygettext {
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/**
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* Plural functions are used to select a string that matches a given
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* count. \a n is the count and the return value is the string index
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* used in the .po file, for example:
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*
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* msgstr[0] = "You got %d error";
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* msgstr[1] = "You got %d errors";
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* ^-- return value of plural function
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*/
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unsigned int plural1(int ) { return 0; }
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unsigned int plural2_1(int n) { return (n != 1); }
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unsigned int plural2_2(int n) { return (n > 1); }
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unsigned int plural2_mk(int n) { return n==1 || n%10==1 ? 0 : 1; }
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unsigned int plural3_lv(int n) { return static_cast<unsigned int>(n%10==1 && n%100!=11 ? 0 : n != 0 ? 1 : 2); }
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unsigned int plural3_ga(int n) { return static_cast<unsigned int>(n==1 ? 0 : n==2 ? 1 : 2); }
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unsigned int plural3_lt(int n) { return static_cast<unsigned int>(n%10==1 && n%100!=11 ? 0 : n%10>=2 && (n%100<10 || n%100>=20) ? 1 : 2); }
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unsigned int plural3_1(int n) { return static_cast<unsigned int>(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2); }
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unsigned int plural3_sk(int n) { return static_cast<unsigned int>( (n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2 ); }
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unsigned int plural3_pl(int n) { return static_cast<unsigned int>(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2); }
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unsigned int plural3_sl(int n) { return static_cast<unsigned int>(n%100==1 ? 0 : n%100==2 ? 1 : n%100==3 || n%100==4 ? 2 : 3); }
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unsigned int plural4_ar(int n) { return static_cast<unsigned int>( n==1 ? 0 : n==2 ? 1 : n>=3 && n<=10 ? 2 : 3 ); }
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PluralForms
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PluralForms::from_string(const std::string& str)
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{
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static std::map<std::string, struct PluralForms> plural_forms;
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if (plural_forms.empty())
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{
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// Note that the plural forms here shouldn't contain any spaces
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plural_forms["Plural-Forms:nplurals=1;plural=0;"] = PluralForms(1, plural1);
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plural_forms["Plural-Forms:nplurals=2;plural=(n!=1);"] = PluralForms(2, plural2_1);
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plural_forms["Plural-Forms:nplurals=2;plural=n!=1;"] = PluralForms(2, plural2_1);
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plural_forms["Plural-Forms:nplurals=2;plural=(n>1);"] = PluralForms(2, plural2_2);
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plural_forms["Plural-Forms:nplurals=2;plural=n==1||n%10==1?0:1;"] = PluralForms(2, plural2_mk);
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plural_forms["Plural-Forms:nplurals=3;plural=n%10==1&&n%100!=11?0:n!=0?1:2);"] = PluralForms(2, plural3_lv);
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plural_forms["Plural-Forms:nplurals=3;plural=n==1?0:n==2?1:2;"] = PluralForms(3, plural3_ga);
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plural_forms["Plural-Forms:nplurals=3;plural=(n%10==1&&n%100!=11?0:n%10>=2&&(n%100<10||n%100>=20)?1:2);"] = PluralForms(3, plural3_lt);
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plural_forms["Plural-Forms:nplurals=3;plural=(n%10==1&&n%100!=11?0:n%10>=2&&n%10<=4&&(n%100<10||n%100>=20)?1:2);"] = PluralForms(3, plural3_1);
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plural_forms["Plural-Forms:nplurals=3;plural=(n==1)?0:(n>=2&&n<=4)?1:2;"] = PluralForms(3, plural3_sk);
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plural_forms["Plural-Forms:nplurals=3;plural=(n==1?0:n%10>=2&&n%10<=4&&(n%100<10||n%100>=20)?1:2);"] = PluralForms(3, plural3_pl);
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plural_forms["Plural-Forms:nplurals=3;plural=(n%100==1?0:n%100==2?1:n%100==3||n%100==4?2:3);"] = PluralForms(3, plural3_sl);
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plural_forms["Plural-Forms:nplurals=4;plural=n==1?0:n==2?1:n>=3&&n<=10?2:3;"]=PluralForms(4, plural4_ar);
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}
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// Remove spaces from string before lookup
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std::string space_less_str;
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for(std::string::size_type i = 0; i < str.size(); ++i)
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if (!isspace(str[i]))
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space_less_str += str[i];
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std::map<std::string, struct PluralForms>::const_iterator it= plural_forms.find(space_less_str);
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if (it != plural_forms.end())
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{
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return it->second;
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}
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else
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{
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return PluralForms();
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}
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}
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} // namespace tinygettext
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/* EOF */
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