improved Variant.cpp, added ScriptEngine.hpp containing the script engine abstraction layer

git-svn-id: file:///var/local/svn/basicwriter@72 daaaf23c-2e50-4459-9457-1e69db5a47bf

2 files changed, 104 insertions, 0 deletions

diff --git a/src/core/utils/Utils.cpp b/src/core/utils/Utils.cpp
new file mode 100644
index 0000000..184fdd0
--- /dev/null
+++ b/src/core/utils/Utils.cpp
@@ -0,0 +1,39 @@
+/*
+    Ousía
+    Copyright (C) 2014, 2015  Benjamin Paaßen, Andreas Stöckel
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "Utils.hpp"
+
+namespace ousia {
+
+bool Utils::isIdentifier(const std::string &name)
+{
+	bool first = true;
+	for (char c : name) {
+		if (first && !(isAlphabetic(c) || c == '_')) {
+			return false;
+		}
+		if (first && !(isAlphanumeric(c) || c == '_' || c == '-')) {
+			return false;
+		}
+		first = false;
+	}
+	return true;
+}
+
+}
+
diff --git a/src/core/utils/Utils.hpp b/src/core/utils/Utils.hpp
new file mode 100644
index 0000000..2fcd794
--- /dev/null
+++ b/src/core/utils/Utils.hpp
@@ -0,0 +1,65 @@
+/*
+    Ousía
+    Copyright (C) 2014, 2015  Benjamin Paaßen, Andreas Stöckel
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifndef _OUSIA_UTILS_H_
+#define _OUSIA_UTILS_H_
+
+#include <string>
+
+namespace ousia {
+
+class Utils {
+
+public:
+
+	/**
+	 * Returns true if the given character is in [A-Za-z]
+	 */
+	static bool isAlphabetic(const char c)
+	{
+		return ((c >= 'A') && (c <= 'Z')) || ((c >= 'a') && (c <= 'z'));
+	}
+
+	/**
+	 * Returns true if the given character is in [0-9]
+	 */
+	static bool isNumeric(const char c)
+	{
+		return (c >= '0') && (c <= '9');
+	}
+
+	/**
+	 * Returns true if the given character is in [A-Za-z0-9]
+	 */
+	static bool isAlphanumeric(const char c)
+	{
+		return isAlphabetic(c) || isNumeric(c);
+	}
+
+	/**
+	 * Returns true if the given character is in [A-Za-z_][A-Za-z0-9_-]*
+	 */
+	static bool isIdentifier(const std::string &name);
+
+};
+
+}
+
+#endif /* _OUSIA_UTILS_H_ */
+