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51 lines
1.5 KiB
51 lines
1.5 KiB
<?php
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/** @license MIT
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* Copyright 2021 Dustin Wilson et al.
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* See LICENSE file for details */
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declare(strict_types=1);
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namespace MensBeam\Lit;
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/** Static storage for grammars; a map of a scope string and a Grammar object */
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class GrammarRegistry {
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protected static array $storage = [];
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/** Clears all grammars from the registry */
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public static function clear() {
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self::$storage = [];
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}
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/**
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* Retrieves a grammar from the registry
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*
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* @param string $scopeName - The scope name (eg: text.html.php) of the grammar that is being requested
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* @return MensBeam\Lit\Grammar|false
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*/
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public static function get(string $scopeName): Grammar|false {
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if (array_key_exists($scopeName, self::$storage)) {
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return self::$storage[$scopeName];
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} else {
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$filename = __DIR__ . "/../data/$scopeName.json";
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if (file_exists($filename)) {
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$grammar = new Grammar();
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$grammar->loadJSON($filename);
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self::$storage[$scopeName] = $grammar;
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return $grammar;
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}
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}
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return false;
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}
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/**
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* Sets a grammar in the registry.
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*
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* @param string $scopeName - The scope name (eg: text.html.php) of the grammar that is being set
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* @param MensBeam\Lit\Grammar - The grammar to be put into the registry
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*/
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public static function set(string $scopeName, Grammar $grammar) {
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self::$storage[$scopeName] = $grammar;
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}
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}
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