feat: added automod regex support

include/dpp/automod.h

@@ -107,9 +107,10 @@ enum automod_trigger_type : uint8_t {
  */
 struct DPP_EXPORT automod_metadata : public json_interface<automod_metadata> {
 	/**
-	 * @brief @brief Substrings which will be searched for in content.
+	 * @brief @brief Substrings which will be searched for in content (Maximum of 1000).
 	 *
-	 * Each keyword can be a phrase which contains multiple words. All keywords are case insensitive.
+	 * Each keyword can be a phrase which contains multiple words.
+	 * All keywords are case insensitive and can be up to 30 characters.
 	 *
 	 * Wildcard symbols (`*`) can be used to customize how each keyword will be matched.
 	 *
@@ -146,6 +147,14 @@ struct DPP_EXPORT automod_metadata : public json_interface<automod_metadata> {
 	 */
 	std::vector<std::string> keywords;
 
+	/**
+	 * @brief Regular expression patterns which will be matched against content (Maximum of 10).
+	 *
+	 * Only Rust flavored regex is currently supported, which can be tested in online editors such as [Rustexp](https://rustexp.lpil.uk/).
+	 * Each regex pattern must be 75 characters or less.
+	 */
+	std::vector<std::string> regex_patterns;
+
 	/**
 	 * @brief Preset keyword list types to moderate
 	 * @see automod_preset_type

src/dpp/automod.cpp

@@ -78,6 +78,9 @@ automod_metadata& automod_metadata::fill_from_json(nlohmann::json* j) {
 	for (auto k : (*j)["keyword_filter"]) {
 		keywords.push_back(k);
 	}
+	for (auto k : (*j)["regex_patterns"]) {
+		regex_patterns.push_back(k);
+	}
 	for (auto k : (*j)["presets"]) {
 		presets.push_back((automod_preset_type)k.get<uint32_t>());
 	}
@@ -91,15 +94,19 @@ automod_metadata& automod_metadata::fill_from_json(nlohmann::json* j) {
 std::string automod_metadata::build_json(bool with_id) const {
 	json j;
 	j["keyword_filter"] = json::array();
+	j["regex_patterns"] = json::array();
 	j["presets"] = json::array();
 	j["allow_list"] = json::array();
-	for (auto v : keywords) {
+	for (auto &v : keywords) {
 		j["keyword_filter"].push_back(v);
 	}
+	for (auto &v : regex_patterns) {
+		j["regex_patterns"].push_back(v);
+	}
 	for (auto v : presets) {
 		j["presets"].push_back((uint32_t)v);
 	}
-	for (auto v : allow_list) {
+	for (auto &v : allow_list) {
 		j["allow_list"].push_back(v);
 	}
 	j["mention_total_limit"] = mention_total_limit;