mirror of
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335 lines
8.9 KiB
C++
335 lines
8.9 KiB
C++
//
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// Format.cpp
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//
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// $Id: //poco/1.3/Foundation/src/Format.cpp#1 $
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//
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// Library: Foundation
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// Package: Core
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// Module: Format
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//
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// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Redistributions in any form must be accompanied by information on
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// how to obtain complete source code for this software and any
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// accompanying software that uses this software. The source code
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// must either be included in the distribution or be available for no
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// more than the cost of distribution plus a nominal fee, and must be
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// freely redistributable under reasonable conditions. For an
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// executable file, complete source code means the source code for all
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// modules it contains. It does not include source code for modules or
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// files that typically accompany the major components of the operating
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// system on which the executable file runs.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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#include "Poco/Format.h"
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#include "Poco/Exception.h"
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#include <sstream>
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#include <ctype.h>
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namespace Poco {
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namespace
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{
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void parseFlags(std::ostream& str, std::string::const_iterator& itFmt, const std::string::const_iterator& endFmt)
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{
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bool isFlag = true;
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while (isFlag && itFmt != endFmt)
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{
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switch (*itFmt)
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{
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case '-': str.setf(std::ios_base::left); ++itFmt; break;
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case '+': str.setf(std::ios_base::showpos); ++itFmt; break;
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case '0': str.fill('0'); ++itFmt; break;
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case '#': str.setf(std::ios_base::showpoint | std::ios_base::showbase); ++itFmt; break;
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default: isFlag = false; break;
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}
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}
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}
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void parseWidth(std::ostream& str, std::string::const_iterator& itFmt, const std::string::const_iterator& endFmt)
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{
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int width = 0;
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while (itFmt != endFmt && isdigit(*itFmt))
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{
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width = 10*width + *itFmt - '0';
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++itFmt;
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}
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if (width != 0) str.width(width);
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}
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void parsePrec(std::ostream& str, std::string::const_iterator& itFmt, const std::string::const_iterator& endFmt)
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{
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if (itFmt != endFmt && *itFmt == '.')
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{
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++itFmt;
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int prec = 0;
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while (itFmt != endFmt && isdigit(*itFmt))
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{
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prec = 10*prec + *itFmt - '0';
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++itFmt;
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}
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if (prec != 0) str.precision(prec);
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}
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}
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char parseMod(std::string::const_iterator& itFmt, const std::string::const_iterator& endFmt)
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{
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char mod = 0;
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if (itFmt != endFmt)
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{
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switch (*itFmt)
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{
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case 'l':
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case 'h':
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case 'L': mod = *itFmt++; break;
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}
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}
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return mod;
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}
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void prepareFormat(std::ostream& str, char type)
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{
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switch (type)
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{
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case 'd':
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case 'i': str << std::dec; break;
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case 'o': str << std::oct; break;
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case 'x': str << std::hex; break;
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case 'X': str << std::hex << std::uppercase; break;
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case 'e': str << std::scientific; break;
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case 'E': str << std::scientific << std::uppercase; break;
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case 'f': str << std::fixed; break;
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}
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}
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void formatOne(std::string& result, std::string::const_iterator& itFmt, const std::string::const_iterator& endFmt, std::vector<Any>::const_iterator& itVal)
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{
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std::ostringstream str;
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parseFlags(str, itFmt, endFmt);
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parseWidth(str, itFmt, endFmt);
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parsePrec(str, itFmt, endFmt);
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char mod = parseMod(itFmt, endFmt);
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if (itFmt != endFmt)
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{
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char type = *itFmt++;
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prepareFormat(str, type);
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switch (type)
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{
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case 'c':
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str << AnyCast<char>(*itVal++);
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break;
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case 'd':
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case 'i':
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switch (mod)
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{
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case 'l': str << AnyCast<long>(*itVal++); break;
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case 'L': str << AnyCast<Int64>(*itVal++); break;
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case 'h': str << AnyCast<short>(*itVal++); break;
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default: str << AnyCast<int>(*itVal++); break;
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}
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break;
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case 'o':
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case 'u':
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case 'x':
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case 'X':
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switch (mod)
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{
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case 'l': str << AnyCast<unsigned long>(*itVal++); break;
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case 'L': str << AnyCast<UInt64>(*itVal++); break;
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case 'h': str << AnyCast<unsigned short>(*itVal++); break;
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default: str << AnyCast<unsigned>(*itVal++); break;
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}
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break;
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case 'e':
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case 'E':
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case 'f':
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switch (mod)
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{
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case 'l': str << AnyCast<long double>(*itVal++); break;
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case 'L': str << AnyCast<long double>(*itVal++); break;
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case 'h': str << AnyCast<float>(*itVal++); break;
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default: str << AnyCast<double>(*itVal++); break;
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}
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break;
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case 's':
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str << RefAnyCast<std::string>(*itVal++);
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break;
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default:
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str << type;
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}
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}
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result.append(str.str());
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}
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}
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std::string format(const std::string& fmt, const Any& value)
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{
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std::string result;
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format(result, fmt, value);
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return result;
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}
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std::string format(const std::string& fmt, const Any& value1, const Any& value2)
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{
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std::string result;
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format(result, fmt, value1, value2);
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return result;
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}
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std::string format(const std::string& fmt, const Any& value1, const Any& value2, const Any& value3)
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{
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std::string result;
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format(result, fmt, value1, value2, value3);
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return result;
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}
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std::string format(const std::string& fmt, const Any& value1, const Any& value2, const Any& value3, const Any& value4)
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{
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std::string result;
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format(result, fmt, value1, value2, value3, value4);
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return result;
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}
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std::string format(const std::string& fmt, const Any& value1, const Any& value2, const Any& value3, const Any& value4, const Any& value5)
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{
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std::string result;
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format(result, fmt, value1, value2, value3, value4, value5);
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return result;
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}
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std::string format(const std::string& fmt, const Any& value1, const Any& value2, const Any& value3, const Any& value4, const Any& value5, const Any& value6)
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{
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std::string result;
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format(result, fmt, value1, value2, value3, value4, value5, value6);
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return result;
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}
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void format(std::string& result, const std::string& fmt, const Any& value)
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{
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std::vector<Any> args;
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args.push_back(value);
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format(result, fmt, args);
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}
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void format(std::string& result, const std::string& fmt, const Any& value1, const Any& value2)
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{
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std::vector<Any> args;
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args.push_back(value1);
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args.push_back(value2);
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format(result, fmt, args);
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}
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void format(std::string& result, const std::string& fmt, const Any& value1, const Any& value2, const Any& value3)
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{
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std::vector<Any> args;
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args.push_back(value1);
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args.push_back(value2);
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args.push_back(value3);
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format(result, fmt, args);
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}
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void format(std::string& result, const std::string& fmt, const Any& value1, const Any& value2, const Any& value3, const Any& value4)
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{
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std::vector<Any> args;
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args.push_back(value1);
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args.push_back(value2);
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args.push_back(value3);
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args.push_back(value4);
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format(result, fmt, args);
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}
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void format(std::string& result, const std::string& fmt, const Any& value1, const Any& value2, const Any& value3, const Any& value4, const Any& value5)
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{
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std::vector<Any> args;
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args.push_back(value1);
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args.push_back(value2);
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args.push_back(value3);
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args.push_back(value4);
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args.push_back(value5);
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format(result, fmt, args);
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}
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void format(std::string& result, const std::string& fmt, const Any& value1, const Any& value2, const Any& value3, const Any& value4, const Any& value5, const Any& value6)
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{
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std::vector<Any> args;
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args.push_back(value1);
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args.push_back(value2);
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args.push_back(value3);
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args.push_back(value4);
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args.push_back(value5);
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args.push_back(value6);
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format(result, fmt, args);
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}
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void format(std::string& result, const std::string& fmt, const std::vector<Any>& values)
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{
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std::string::const_iterator itFmt = fmt.begin();
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std::string::const_iterator endFmt = fmt.end();
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std::vector<Any>::const_iterator itVal = values.begin();
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std::vector<Any>::const_iterator endVal = values.end();
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while (itFmt != endFmt)
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{
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switch (*itFmt)
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{
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case '%':
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++itFmt;
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if (itFmt != endFmt && itVal != endVal)
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formatOne(result, itFmt, endFmt, itVal);
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else
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result += *itFmt;
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break;
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default:
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result += *itFmt;
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++itFmt;
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}
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}
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}
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} // namespace Poco
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