Initial commit

include/util/text.hpp

@@ -0,0 +1,55 @@
+#pragma once
+
+#include <string>
+#include <optional>
+#include <fstream>
+#include <stdexcept>
+
+namespace fsh::util {
+
+
+extern const char* tokens[];
+
+template <class T>
+static inline std::optional<std::string> mk_optional(T t){
+    if(t){
+        return t->gvalue();
+    }
+    return std::optional<std::string>();
+}
+
+static inline bool contains(char x, std::string text) {
+    for (const auto& chr : text){
+        if(chr == x) return 1;
+    }
+    return 0;
+};
+
+
+static inline std::ifstream input(const std::string& x) {
+    std::ifstream in(x, std::ios::in);
+    if(!in) {
+        throw std::runtime_error("Can't open file");
+    }
+    return in;
+}
+
+
+static inline std::ofstream output(const std::string& x) {
+    std::ofstream out(x, std::ios::out);
+    if(!out.is_open()) {
+        throw std::runtime_error("Can't open file");
+    }
+    return out;
+}
+
+
+static inline std::ofstream output_append(const std::string& x) {
+    std::ofstream out(x, std::ios::app | std::ios::out);
+    if(!out.is_open()) {
+        throw std::runtime_error("Can't open file");
+    }
+    return out;
+}
+
+}