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+/*
+ * Copyright (c) 2003-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __CPRINTF_FORMATS_HH__
+#define __CPRINTF_FORMATS_HH__
+
+#include <sstream>
+#include <ostream>
+
+namespace cp {
+
+struct Format
+{
+ bool alternate_form;
+ bool flush_left;
+ bool print_sign;
+ bool blank_space;
+ bool fill_zero;
+ bool uppercase;
+ enum { dec, hex, oct } base;
+ enum { none, string, integer, character, floating } format;
+ enum { best, fixed, scientific } float_format;
+ int precision;
+ int width;
+
+ Format() { clear(); }
+
+ void clear()
+ {
+ alternate_form = false;
+ flush_left = false;
+ print_sign = false;
+ blank_space = false;
+ fill_zero = false;
+ uppercase = false;
+ base = dec;
+ format = none;
+ precision = -1;
+ width = 0;
+ }
+};
+
+template <typename T>
+inline void
+_format_char(std::ostream &out, const T &data, Format &fmt)
+{
+ using namespace std;
+
+ out << data;
+}
+
+template <typename T>
+inline void
+_format_integer(std::ostream &out, const T &data, Format &fmt)
+{
+ using namespace std;
+
+ switch (fmt.base) {
+ case Format::hex:
+ out.setf(ios::hex, ios::basefield);
+ break;
+
+ case Format::oct:
+ out.setf(ios::oct, ios::basefield);
+ break;
+
+ case Format::dec:
+ out.setf(ios::dec, ios::basefield);
+ break;
+ }
+
+ if (fmt.alternate_form) {
+ if (!fmt.fill_zero)
+ out.setf(ios::showbase);
+ else {
+ switch (fmt.base) {
+ case Format::hex:
+ out << "0x";
+ fmt.width -= 2;
+ break;
+ case Format::oct:
+ out << "0";
+ fmt.width -= 1;
+ break;
+ case Format::dec:
+ break;
+ }
+ }
+ }
+
+ if (fmt.fill_zero)
+ out.fill('0');
+
+ if (fmt.width > 0)
+ out.width(fmt.width);
+
+ if (fmt.flush_left && !fmt.fill_zero)
+ out.setf(ios::left);
+
+ if (fmt.print_sign)
+ out.setf(ios::showpos);
+
+ if (fmt.uppercase)
+ out.setf(ios::uppercase);
+
+ out << data;
+}
+
+template <typename T>
+inline void
+_format_float(std::ostream &out, const T &data, Format &fmt)
+{
+ using namespace std;
+
+ switch (fmt.float_format) {
+ case Format::scientific:
+ if (fmt.precision != -1) {
+ if (fmt.width > 0)
+ out.width(fmt.width);
+
+ if (fmt.precision == 0)
+ fmt.precision = 1;
+ else
+ out.setf(ios::scientific);
+
+ out.precision(fmt.precision);
+ } else
+ if (fmt.width > 0)
+ out.width(fmt.width);
+
+ if (fmt.uppercase)
+ out.setf(ios::uppercase);
+ break;
+
+ case Format::fixed:
+ if (fmt.precision != -1) {
+ if (fmt.width > 0)
+ out.width(fmt.width);
+
+ out.setf(ios::fixed);
+ out.precision(fmt.precision);
+ } else
+ if (fmt.width > 0)
+ out.width(fmt.width);
+
+ break;
+
+ default:
+ if (fmt.precision != -1)
+ out.precision(fmt.precision);
+
+ if (fmt.width > 0)
+ out.width(fmt.width);
+
+ break;
+ }
+
+ out << data;
+}
+
+template <typename T>
+inline void
+_format_string(std::ostream &out, const T &data, Format &fmt)
+{
+ using namespace std;
+
+#if defined(__GNUC__) && (__GNUC__ < 3) || 1
+ if (fmt.width > 0) {
+ std::stringstream foo;
+ foo << data;
+ int flen = foo.str().size();
+
+ if (fmt.width > flen) {
+ char *spaces = new char[fmt.width - flen + 1];
+ memset(spaces, ' ', fmt.width - flen);
+ spaces[fmt.width - flen] = 0;
+
+ if (fmt.flush_left)
+ out << foo.str() << spaces;
+ else
+ out << spaces << foo.str();
+
+ delete [] spaces;
+ } else
+ out << data;
+ } else
+ out << data;
+#else
+ if (fmt.width > 0)
+ out.width(fmt.width);
+ if (fmt.flush_left)
+ out.setf(ios::left);
+
+ out << data;
+#endif
+}
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// The code below controls the actual usage of formats for various types
+//
+
+//
+// character formats
+//
+template <typename T>
+inline void
+format_char(std::ostream &out, const T &data, Format &fmt)
+{ out << "<bad arg type for char format>"; }
+
+inline void
+format_char(std::ostream &out, char data, Format &fmt)
+{ _format_char(out, data, fmt); }
+
+inline void
+format_char(std::ostream &out, unsigned char data, Format &fmt)
+{ _format_char(out, data, fmt); }
+
+inline void
+format_char(std::ostream &out, signed char data, Format &fmt)
+{ _format_char(out, data, fmt); }
+
+inline void
+format_char(std::ostream &out, short data, Format &fmt)
+{ _format_char(out, (char)data, fmt); }
+
+inline void
+format_char(std::ostream &out, unsigned short data, Format &fmt)
+{ _format_char(out, (char)data, fmt); }
+
+inline void
+format_char(std::ostream &out, int data, Format &fmt)
+{ _format_char(out, (char)data, fmt); }
+
+inline void
+format_char(std::ostream &out, unsigned int data, Format &fmt)
+{ _format_char(out, (char)data, fmt); }
+
+inline void
+format_char(std::ostream &out, long data, Format &fmt)
+{ _format_char(out, (char)data, fmt); }
+
+inline void
+format_char(std::ostream &out, unsigned long data, Format &fmt)
+{ _format_char(out, (char)data, fmt); }
+
+inline void
+format_char(std::ostream &out, long long data, Format &fmt)
+{ _format_char(out, (char)data, fmt); }
+
+inline void
+format_char(std::ostream &out, unsigned long long data, Format &fmt)
+{ _format_char(out, (char)data, fmt); }
+
+//
+// integer formats
+//
+template <typename T>
+inline void
+format_integer(std::ostream &out, const T &data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, char data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, unsigned char data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, signed char data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+#if 0
+inline void
+format_integer(std::ostream &out, short data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, unsigned short data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, int data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, unsigned int data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, long data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, unsigned long data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, long long data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+inline void
+format_integer(std::ostream &out, unsigned long long data, Format &fmt)
+{ _format_integer(out, data, fmt); }
+#endif
+
+//
+// floating point formats
+//
+template <typename T>
+inline void
+format_float(std::ostream &out, const T &data, Format &fmt)
+{ out << "<bad arg type for float format>"; }
+
+inline void
+format_float(std::ostream &out, float data, Format &fmt)
+{ _format_float(out, data, fmt); }
+
+inline void
+format_float(std::ostream &out, double data, Format &fmt)
+{ _format_float(out, data, fmt); }
+
+//
+// string formats
+//
+template <typename T>
+inline void
+format_string(std::ostream &out, const T &data, Format &fmt)
+{ _format_string(out, data, fmt); }
+
+inline void
+format_string(std::ostream &out, const std::stringstream &data, Format &fmt)
+{ _format_string(out, data.str(), fmt); }
+
+} // namespace cp
+
+#endif // __CPRINTF_FORMATS_HH__
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