--- a/sources/format.h Sun May 17 22:07:48 2015 +0300 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,205 +0,0 @@ -/* - Copyright 2014, 2015 Teemu Piippo - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - 2. 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. - 3. Neither the name of the copyright holder 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 HOLDER - 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. -*/ - -#pragma once -#include "mystring.h" -#include "basics.h" -#include "geometry.h" - -#define FORMAT_OVERLOAD(...) \ - inline String make_format_argument (__VA_ARGS__ a) - -// ------------------------------------------------------------------------------------------------- -// -FORMAT_OVERLOAD (String) { return a; } -FORMAT_OVERLOAD (char) { return String (a); } -FORMAT_OVERLOAD (short int) { return String::from_number (a); } -FORMAT_OVERLOAD (int) { return String::from_number (a); } -FORMAT_OVERLOAD (long int) { return String::from_number (a); } -FORMAT_OVERLOAD (double) { return String::from_number (a); } -FORMAT_OVERLOAD (unsigned short int) { return String::from_number (a); } -FORMAT_OVERLOAD (unsigned int) { return String::from_number (a); } -FORMAT_OVERLOAD (unsigned long int) { return String::from_number (a); } -FORMAT_OVERLOAD (const char*) { return a; } -FORMAT_OVERLOAD (std::nullptr_t) { (void) a; return "<null pointer>"; } -FORMAT_OVERLOAD (bool) { return a ? "true" : "false"; } - -FORMAT_OVERLOAD (const void*) -{ - String result; - result.sprintf ("%p", a); - return result; -} - -template<typename T, typename C> -FORMAT_OVERLOAD (const Container<T, C>&) -{ - String result; - - if (a.is_empty()) - return "{}"; - - result = "{"; - - for (auto it = a.begin(); it != a.end(); ++it) - { - if (it != a.begin()) - result += ", "; - - result += make_format_argument (*it); - } - - result += "}"; - return result; -} - -FORMAT_OVERLOAD (Color) -{ - static const char* colorstrings[] = - { - "BLACK", "RED", "GREEN", "YELLOW", - "BLUE", "MAGENTA", "CYAN", "WHITE", "DEFAULT" - }; - - static_assert (sizeof colorstrings / sizeof *colorstrings == NUM_COLORS, - "colostrings[] has an incorrect amount of elements"); - - if (int (a) >= 0 and int (a) < NUM_COLORS) - return colorstrings[int (a)]; - - return "???"; -} - -FORMAT_OVERLOAD (Position) -{ - return String ("(") + a.x + ", " + a.y + ")"; -} - -FORMAT_OVERLOAD (Size) -{ - return String ("(") + a.width + "x" + a.height + ")"; -} - -FORMAT_OVERLOAD (Rectangle) -{ - String result; - result.sprintf ("{(%d, %d), (%dx%d)}", a.x, a.y, a.width, a.height); - return result; -} - -// ------------------------------------------------------------------------------------------------- -// -// Formats the given string with the given args. -// -FUNCTION format_args (const String& fmtstr, const Vector<String>& args) -> String; - -// ------------------------------------------------------------------------------------------------- -// -// Expands the given arguments into a vector of strings. -// -template<typename T, typename... RestTypes> -void expand_format_arguments (Vector<String>& data, const T& arg, const RestTypes& ... rest) -{ - data.append (make_format_argument (arg)); - expand_format_arguments (data, rest...); -} - -static void expand_format_arguments (Vector<String>&) __attribute__((unused)); -static void expand_format_arguments (Vector<String>&) {} - -// ------------------------------------------------------------------------------------------------- -// -// Formats the given formatter string and args and returns the string. -// This is essentially a modernized sprintf. -// -// Args in the format string take the form %n where n is a digit. The argument -// will be expanded to the nth argument passed. This is essentially Qt's -// QString::arg() syntax. Note: %0 is invalid. -// -// Arguments can be passed a modifier which takes the form of a character -// just before the digit. Currently supported modifiers are s, d and x. -// -// - s: The argument will expand into "s" if it would've not expanded into "1" -// otherwise. If it would have expanded into "1" it will expand into an -// empty string. -// -// - d: The argument expands into the numeric form of the first character of -// its previous expansion. Use this to get numeric forms of @c char -// arguments. -// -// - x: The numeric argument will be represented in hexadecimal notation. This -// will work if the argument is a string representing a number. If the -// argument did not expand into a number in the first place, 0 is used -// and 0x0 is printed. -// -template<typename... argtypes> -String format (const String& fmtstr, const argtypes&... raw_args) -{ - Vector<String> args; - expand_format_arguments (args, raw_args...); - return format_args (fmtstr, args); -} - -// ------------------------------------------------------------------------------------------------- -// -// This is an overload of format() where no arguments are supplied. -// It returns the formatter string as-is. -// -static String format (const String& fmtstr) __attribute__ ((unused)); -static String format (const String& fmtstr) // -> String -{ - return fmtstr; -} - -// ------------------------------------------------------------------------------------------------- -// -// Prints the formatting result to the given file handle -// -template<typename... Args> -void print_to (FILE* fp, const String& fmtstr, Args const& ...args) -{ - std::fprintf (fp, "%s", format (fmtstr, args...).chars()); -} - -// ------------------------------------------------------------------------------------------------- -// -// Appends the formatting result to the given filename, if opening it succeeds -// -template<typename... argtypes> -void print_to (const String& filename, const String& fmtstr, const argtypes&... args) -{ - FILE* handle; - - if ((handle = fopen (filename, "a"))) - { - print_to (handle, fmtstr, args...); - fclose (handle); - } -}