diff -r 9374fea8f77f -r f1b8cb53d2a2 src/misc.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/misc.h	Wed May 08 15:19:06 2013 +0300
@@ -0,0 +1,110 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013 Santeri Piippo
+ *  
+ *  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 MISC_H
+#define MISC_H
+
+#include "common.h"
+#include "str.h"
+#include "config.h"
+
+#define NUM_PRIMES 500
+
+class QColor;
+class QAction;
+
+// Prime numbers
+extern const ushort g_uaPrimes[NUM_PRIMES];
+
+// Returns whether a given string represents a floating point number.
+bool isNumber (str& zToken);
+
+// Converts a float value to a string value.
+str ftoa (double fCoord);
+
+// Simplifies the given fraction.
+void simplify (short& dNum, short& dDenom);
+
+// Grid stuff
+typedef struct {
+	const char* const name;
+	floatconfig* const confs[4];
+	QAction** const actionptr;
+} gridinfo;
+
+extern_cfg (int, grid);
+static const short g_NumGrids = 3;
+extern const gridinfo g_GridInfo[3];
+
+inline const gridinfo& currentGrid () {
+	return g_GridInfo[grid];
+}
+
+namespace Grid {
+	enum Type {
+		Coarse,
+		Medium,
+		Fine
+	};
+	
+	enum Config {
+		X,
+		Y,
+		Z,
+		Angle
+	};
+	
+	double snap (double value, const Grid::Config axis);
+};
+
+// =============================================================================
+template<class T> void dataswap (T& a, T& b) {
+	T c = a;
+	a = b;
+	b = c;
+}
+
+// =============================================================================
+// StringParser
+//
+// String parsing utility
+// =============================================================================
+class StringParser {
+public:
+	std::vector<str> zaTokens;
+	short dPos;
+	
+	StringParser (str zInText, char cSeparator);
+	
+	bool atEnd ();
+	bool atBeginning ();
+	bool next (str& zVal);
+	bool peekNext (str& zVal);
+	bool getToken (str& zVal, const ushort uInPos);
+	bool findToken (short& dResult, char const* sNeedle, short dArgs);
+	size_t size ();
+	void rewind ();
+	void seek (short dAmount, bool bRelative);
+	bool tokenCompare (short int dInPos, const char* sOther);
+	
+	str operator[] (const size_t uIndex) {
+		return zaTokens[uIndex];
+	}
+};
+
+#endif // MISC_H
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