X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Fstrings%2Fformatter.h;fp=source%2Fstrings%2Fformatter.h;h=cde508bac9740aaf9c0064166436b38354a3d7f4;hp=0000000000000000000000000000000000000000;hb=b42ed73a1b241c0e93ee03c43c4584b41c549bac;hpb=5b1368cb791cab043f0435628cacbaff36e39b7b

diff --git a/source/strings/formatter.h b/source/strings/formatter.h
new file mode 100644
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+++ b/source/strings/formatter.h
@@ -0,0 +1,70 @@
+/* $Id$
+
+This file is part of libmspstrings
+Copyright © 2006-2007 Mikko Rasa
+Distributed under the LGPL
+*/
+
+#ifndef MSP_STRINGS_FORMATTER_H_
+#define MSP_STRINGS_FORMATTER_H_
+
+#include <string>
+#include "lexicalcast.h"
+
+namespace Msp {
+
+/**
+Printf-like string formatter class.
+*/
+class Formatter
+{
+private:
+	std::string fmt;
+	std::string::iterator pos;
+	std::string result;
+
+public:
+	Formatter(const std::string &);
+
+	/** Extracts the next conversion from the format string and formats the
+	given value with it.  Will throw if no more conversions are found. */
+	template<typename T>
+	Formatter &operator()(const T &a)
+	{
+		result += lexical_cast(a, get_conversion());
+		advance();
+		return *this;
+	}
+
+	const std::string &str() const;
+private:
+	void advance();
+	Fmt get_conversion();
+};
+
+inline Formatter format(const std::string &f)
+{ return Formatter(f); }
+
+template<typename A1>
+inline std::string format(const std::string &f, const A1 &a1)
+{ return Formatter(f)(a1).str(); }
+
+template<typename A1, typename A2>
+inline std::string format(const std::string &f, const A1 &a1, const A2 &a2)
+{ return Formatter(f)(a1)(a2).str(); }
+
+template<typename A1, typename A2, typename A3>
+inline std::string format(const std::string &f, const A1 &a1, const A2 &a2, const A3 &a3)
+{ return Formatter(f)(a1)(a2)(a3).str(); }
+
+template<typename A1, typename A2, typename A3, typename A4>
+inline std::string format(const std::string &f, const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4)
+{ return Formatter(f)(a1)(a2)(a3)(a4).str(); }
+
+template<typename A1, typename A2, typename A3, typename A4, typename A5>
+inline std::string format(const std::string &f, const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4, const A5 &a5)
+{ return Formatter(f)(a1)(a2)(a3)(a4)(a5).str(); }
+
+} // namespace Msp
+
+#endif