first commit

src/core/utils.cpp

@@ -0,0 +1,44 @@
+/* 
+ * Mirai. Copyright (C) 2024 Vyn
+ * This file is licensed under version 3 of the GNU General Public License (GPL-3.0-only)
+ * The license can be found in the LICENSE file or at https://www.gnu.org/licenses/gpl-3.0.txt
+ */
+
+#include "utils.h"
+
+void ltrim(std::string& s) {
+    s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](unsigned char ch) {
+        return !std::isspace(ch);
+    }));
+}
+
+void rtrim(std::string& s) {
+    s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char ch) {
+        return !std::isspace(ch);
+    }).base(), s.end());
+}
+
+void trim(std::string& s) {
+    rtrim(s);
+    ltrim(s);
+}
+
+std::string ltrim_copy(std::string s) {
+    ltrim(s);
+    return s;
+}
+
+std::string rtrim_copy(std::string s) {
+    rtrim(s);
+    return s;
+}
+
+std::string trim_copy(std::string s) {
+    trim(s);
+    return s;
+}
+
+bool isDate(const std::string& dateStr) {
+	std::regex regex("[0-9]{4}-[0-9]{2}-[0-9]{2}");
+	return std::regex_match(dateStr, regex);
+}