1: <?php
  2: 
  3: /*
  4:  * To change this license header, choose License Headers in Project Properties.
  5:  * To change this template file, choose Tools | Templates
  6:  * and open the template in the editor.
  7:  */
  8: 
  9: namespace academicpuma\citeproc;
 10: use \SimpleXMLElement;
 11: 
 12: /**
 13:  * Description of csl_locale
 14:  *
 15:  * @author sebastian
 16:  */
 17: 
 18: class Locale {
 19: 
 20:     protected $locale_xmlstring = NULL;
 21:     protected $style_locale_xmlstring = NULL;
 22:     protected $locale = NULL;
 23:     protected $style_locale = NULL;
 24:     //private $module_path;
 25: 
 26:     function __construct($lang = 'en') {
 27:         //$this->module_path = dirname(__FILE__);
 28:         $this->locale = new SimpleXMLElement($this->get_locales_file_name($lang));
 29:         if ($this->locale) {
 30:             $this->locale->registerXPathNamespace('cs', 'http://purl.org/net/xbiblio/csl');
 31:         }
 32:     }
 33: 
 34:     // SimpleXML objects cannot be serialized, so we must convert to an XML string prior to serialization
 35:     function __sleep() {
 36:         $this->locale_xmlstring = ($this->locale) ? $this->locale->asXML() : '';
 37:         $this->style_locale_xmlstring = ($this->style_locale) ? $this->style_locale->asXML() : '';
 38:         return array('locale_xmlstring', 'style_locale_xmlstring');
 39:     }
 40: 
 41:     // SimpleXML objects cannot be serialized, so when un-serializing them, they must rebuild from the serialized XML string.
 42:     function __wakeup() {
 43:         $this->style_locale = (!empty($this->style_locale_xmlstring)) ? new SimpleXMLElement($this->style_locale_xmlstring) : NULL;
 44:         $this->locale = (!empty($this->locale_xmlstring)) ? new SimpleXMLElement($this->locale_xmlstring) : NULL;
 45:         if ($this->locale) {
 46:             $this->locale->registerXPathNamespace('cs', 'http://purl.org/net/xbiblio/csl');
 47:         }
 48:     }
 49: 
 50:     function get_locales_file_name($lang) {
 51:         $lang_bases = array(
 52:             "af" => "af-ZA",
 53:             "ar" => "ar-AR",
 54:             "bg" => "bg-BG",
 55:             "ca" => "ca-AD",
 56:             "cs" => "cs-CZ",
 57:             "da" => "da-DK",
 58:             "de" => "de-DE",
 59:             "el" => "el-GR",
 60:             "en" => "en-GB",
 61:             "en" => "en-US",
 62:             "es" => "es-ES",
 63:             "et" => "et-EE",
 64:             "fa" => "fa-IR",
 65:             "fi" => "fi-FI",
 66:             "fr" => "fr-FR",
 67:             "he" => "he-IL",
 68:             "hu" => "hu-HU",
 69:             "is" => "is-IS",
 70:             "it" => "it-IT",
 71:             "ja" => "ja-JP",
 72:             "km" => "km-KH",
 73:             "ko" => "ko-KR",
 74:             "mn" => "mn-MN",
 75:             "nb" => "nb-NO",
 76:             "nl" => "nl-NL",
 77:             "nn" => "nn-NO",
 78:             "pl" => "pl-PL",
 79:             "pt" => "pt-PT",
 80:             "ro" => "ro-RO",
 81:             "ru" => "ru-RU",
 82:             "sk" => "sk-SK",
 83:             "sl" => "sl-SI",
 84:             "sr" => "sr-RS",
 85:             "sv" => "sv-SE",
 86:             "th" => "th-TH",
 87:             "tr" => "tr-TR",
 88:             "uk" => "uk-UA",
 89:             "vi" => "vi-VN",
 90:             "zh" => "zh-CN",
 91:         );
 92:         return (isset($lang_bases[$lang])) ? file_get_contents('../locale/locales-' . $lang_bases[$lang] . '.xml') : file_get_contents($this->module_path . '/locale/locales-en-US.xml');
 93:     }
 94: 
 95:     function get_locale($type, $arg1, $arg2 = NULL, $arg3 = NULL) {
 96:         switch ($type) {
 97:             case 'term':
 98:                 $term = '';
 99:                 $form = $arg2 ? " and @form='$arg2'" : '';
100:                 $plural = $arg3 ? "/cs:$arg3" : '';
101:                 if ($this->style_locale) {
102:                     $term = @$this->style_locale->xpath("//locale[@xml:lang='en']/terms/term[@name='$arg1'$form]$plural");
103:                     if (!$term) {
104:                         $term = @$this->style_locale->xpath("//locale/terms/term[@name='$arg1'$form]$plural");
105:                     }
106:                 }
107:                 if (!$term) {
108:                     $term = $this->locale->xpath("//cs:term[@name='$arg1'$form]$plural");
109:                 }
110:                 if (isset($term[0])) {
111:                     if (isset($arg3) && isset($term[0]->{$arg3}))
112:                         return (string) $term[0]->{$arg3};
113:                     if (!isset($arg3) && isset($term[0]->single))
114:                         return (string) $term[0]->single;
115:                     return (string) $term[0];
116:                 }
117:                 break;
118:             case 'date_option':
119:                 $attribs = array();
120:                 if ($this->style_locale) {
121:                     $date_part = $this->style_locale->xpath("//date[@form='$arg1']/date-part[@name='$arg2']");
122:                 }
123:                 if (!isset($date_part)) {
124:                     $date_part = $this->locale->xpath("//cs:date[@form='$arg1']/cs:date-part[@name='$arg2']");
125:                 }
126:                 if (isset($date_part)) {
127:                     foreach ($$date_part->attributes() as $name => $value) {
128:                         $attribs[$name] = (string) $value;
129:                     }
130:                 }
131:                 return $attribs;
132:                 break;
133:             case 'date_options':
134:                 $options = array();
135:                 if ($this->style_locale) {
136:                     $options = $this->style_locale->xpath("//locale[@xml:lang='en']/date[@form='$arg1']");
137:                     if (!$options) {
138:                         $options = $this->style_locale->xpath("//locale/date[@form='$arg1']");
139:                     }
140:                 }
141:                 if (!$options) {
142:                     $options = $this->locale->xpath("//cs:date[@form='$arg1']");
143:                 }
144:                 if (isset($options[0]))
145:                     return $options[0];
146:                 break;
147:             case 'style_option':
148:                 $attribs = array();
149:                 if ($this->style_locale) {
150:                     $option = $this->style_locale->xpath("//locale[@xml:lang='en']/style-options[@$arg1]");
151:                     if (!$option) {
152:                         $option = $this->style_locale->xpath("//locale/style-options[@$arg1]");
153:                     }
154:                 }
155:                 if (isset($option) && !empty($option)) {
156:                     $attribs = $option[0]->attributes();
157:                 }
158:                 if (empty($attribs)) {
159:                     $option = $this->locale->xpath("//cs:style-options[@$arg1]");
160:                 }
161:                 foreach ($option[0]->attributes() as $name => $value) {
162:                     if ($name == $arg1)
163:                         return (string) $value;
164:                 }
165:                 break;
166:         }
167:     }
168: 
169:     public function set_style_locale($csl_doc) {
170:         $xml = '';
171:         $locale_nodes = $csl_doc->getElementsByTagName('locale');
172:         if ($locale_nodes) {
173:             $xml_open = '<style-locale>';
174:             $xml_close = '</style-locale>';
175:             foreach ($locale_nodes as $key => $locale_node) {
176:                 $xml .= $csl_doc->saveXML($locale_node);
177:             }
178:             if (!empty($xml)) {
179:                 $this->style_locale = new SimpleXMLElement($xml_open . $xml . $xml_close);
180:             }
181:         }
182:     }
183: 
184: }
185: