1 files changed, 76 insertions, 0 deletions
diff --git a/ratatoeskr/sys/textprocessors/TextprocessorRepository.php b/ratatoeskr/sys/textprocessors/TextprocessorRepository.php
new file mode 100644
index 0000000..5d918c0
--- /dev/null
+++ b/ratatoeskr/sys/textprocessors/TextprocessorRepository.php
@@ -0,0 +1,76 @@
+<?php
+
+
+namespace r7r\cms\sys\textprocessors;
+
+use Exception;
+
+class TextprocessorRepository
+{
+    /** @var Textprocessor[] */
+    private $textprocessors = [];
+
+
+    /**
+     * Builds a repository with the default textprocessors prepopulated.
+     * @return self
+     */
+    public static function buildDefault(): self
+    {
+        $repo = new self();
+
+        $repo->register("Markdown", new MarkdownProcessor());
+        $repo->register("Plain Text", new PlainTextProcessor());
+        $repo->register("HTML", new HtmlProcessor());
+
+        return $repo;
+    }
+
+    public function register(string $name, Textprocessor $textprocessor): void
+    {
+        $this->textprocessors[$name] = $textprocessor;
+    }
+
+    public function getTextprocessor(string $name): ?Textprocessor
+    {
+        return $this->textprocessors[$name] ?? null;
+    }
+
+    /**
+     * @return Textprocessor[]
+     */
+    public function all(): array
+    {
+        return $this->textprocessors;
+    }
+
+    /**
+     * Apply a textprocessor to the input text.
+     *
+     * @param string $input The input text
+     * @param string $name The name of the textprocessor
+     * @return string|null Will return null, if the textprocessor was not found
+     */
+    public function apply(string $input, string $name): ?string
+    {
+        $textprocessor = $this->getTextprocessor($name);
+        return $textprocessor === null ? null : $textprocessor->apply($input);
+    }
+
+    /**
+     * Like {@see TextprocessorRepository::apply()}, but will throw an exception instead of returning null, if the textprocessor was not found.
+     *
+     * @param string $input The input text
+     * @param string $name The name of the textprocessor
+     * @return string
+     * @throws Exception
+     */
+    public function mustApply(string $input, string $name): string
+    {
+        $out = $this->apply($input, $name);
+        if ($out === null) {
+            throw new Exception("Unknown Textprocessor: $name");
+        }
+        return $out;
+    }
+}