Move files around to prepare for assimilation into core

[libs/core.git] / source / strings / formatter.h

diff --git a/source/strings/formatter.h b/source/strings/formatter.h
new file mode 100644 (file)
index 0000000..cde508b
--- /dev/null
+++ 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