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<?php |
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/** |
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* citeproc-php |
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* |
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* @link http://github.com/seboettg/citeproc-php for the source repository |
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* @copyright Copyright (c) 2016 Sebastian Böttger. |
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* @license https://opensource.org/licenses/MIT |
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*/ |
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namespace Seboettg\CiteProc\Style\Sort; |
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use Seboettg\CiteProc\CiteProc; |
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use Seboettg\CiteProc\Util\Variables; |
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/** |
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* Class Key |
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* |
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* The cs:sort element must contain one or more cs:key child elements. The sort key, set as an attribute on cs:key, must |
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* be a variable (see Appendix IV - Variables) or macro name. For each cs:key element, the sort direction can be set to |
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* either “ascending” (default) or “descending” with the sort attribute. The attributes names-min, names-use-first, and |
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* names-use-last may be used to override the values of the corresponding et-al-min/et-al-subsequent-min, |
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* et-al-use-first/et-al-subsequent-use-first and et-al-use-last attributes, and affect all names generated via macros |
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* called by cs:key. |
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* |
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* @package Seboettg\CiteProc\Style\Sort |
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* |
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* @author Sebastian Böttger <[email protected]> |
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*/ |
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class Key implements SortKey |
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{ |
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/** |
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* variable name or macro |
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* @var string |
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*/ |
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private $variable; |
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/** |
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* the sort direction can be set to either “ascending” (default) or “descending” with the sort attribute |
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* @var string |
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*/ |
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private $sort = "ascending"; |
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/** |
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* macro name |
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* @var string |
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*/ |
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private $macro; |
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/** |
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* Key constructor. |
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* The cs:sort element must contain one or more cs:key child elements. The sort key, set as an attribute on cs:key, |
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* must be a variable (see Appendix IV - Variables) or macro name. For each cs:key element, the sort direction can |
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* be set to either “ascending” (default) or “descending” with the sort attribute. |
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* |
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* TODO: The attributes names-min, names-use-first, and names-use-last may be used to override the values of the |
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* corresponding et-al-min/et-al-subsequent-min, et-al-use-first/et-al-subsequent-use-first and et-al-use-last |
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* attributes, and affect all names generated via macros called by cs:key. |
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* |
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* @param \SimpleXMLElement $node |
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*/ |
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public function __construct(\SimpleXMLElement $node) |
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{ |
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/** @var \SimpleXMLElement $attribute */ |
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foreach ($node->attributes() as $attribute) { |
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$name = $attribute->getName(); |
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if ($name === "variable") { |
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$this->variable = (string) $attribute; |
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} |
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if ($name === "sort") { |
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$this->sort = (string) $attribute; |
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} |
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if ($name === "macro") { |
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$this->variable = "macro"; |
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$this->macro = (string) $attribute; |
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} |
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} |
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} |
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/** |
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* @return string |
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*/ |
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public function getVariable() |
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{ |
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return $this->variable; |
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} |
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/** |
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* @return string (ascending|descending) |
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*/ |
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public function getSort() |
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{ |
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return $this->sort; |
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} |
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/** |
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* @return string |
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*/ |
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public function getMacro() |
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{ |
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return $this->macro; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isNameVariable() |
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{ |
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return Variables::isNameVariable($this->variable); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isNumberVariable() |
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{ |
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return Variables::isNumberVariable($this->variable); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isDateVariable() |
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{ |
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return Variables::isDateVariable($this->variable); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isMacro() |
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{ |
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return $this->variable === "macro" && !empty(CiteProc::getContext()->getMacro($this->macro)); |
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} |
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} |
seboettg /
citeproc-php
