+++ /dev/null
-/*
-Copyright (C) 2001-2006, William Joseph.
-All Rights Reserved.
-
-This file is part of GtkRadiant.
-
-GtkRadiant is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-GtkRadiant is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#if !defined(INCLUDED_STREAM_TEXTSTREAM_H)
-#define INCLUDED_STREAM_TEXTSTREAM_H
-
-/// \file
-/// \brief Text-output-formatting.
-
-#include "itextstream.h"
-
-#include <cctype>
-#include <cstddef>
-#include <cmath>
-#include <stdio.h>
-#include <string.h>
-#include <algorithm>
-
-#include "generic/arrayrange.h"
-
-namespace TextOutputDetail
-{
- inline char* write_unsigned_nonzero_decimal_backward(char* ptr, unsigned int decimal)
- {
- for (; decimal != 0; decimal /= 10)
- {
- *--ptr = char('0' + int(decimal % 10));
- }
- return ptr;
- }
-
- #if defined (_WIN64) || defined (__LP64__)
- inline char* write_size_t_nonzero_decimal_backward(char* ptr, size_t decimal)
- {
- for (; decimal != 0; decimal /= 10)
- {
- *--ptr = char('0' + (size_t)(decimal % 10));
- }
- return ptr;
- }
- #endif
-
- inline char* write_signed_nonzero_decimal_backward(char* ptr, int decimal, bool show_positive)
- {
- const bool negative = decimal < 0 ;
- ptr = write_unsigned_nonzero_decimal_backward(ptr, negative ? -decimal : decimal);
- if(negative)
- {
- *--ptr = '-';
- }
- else if(show_positive)
- {
- *--ptr = '+';
- }
- return ptr;
- }
-
- inline char* write_unsigned_nonzero_decimal_backward(char* ptr, unsigned int decimal, bool show_positive)
- {
- ptr = write_unsigned_nonzero_decimal_backward(ptr, decimal);
- if(show_positive)
- {
- *--ptr = '+';
- }
- return ptr;
- }
-
- #if defined (_WIN64) || defined (__LP64__)
- inline char* write_size_t_nonzero_decimal_backward(char* ptr, size_t decimal, bool show_positive)
- {
- ptr = write_size_t_nonzero_decimal_backward(ptr, decimal);
- if(show_positive)
- {
- *--ptr = '+';
- }
- return ptr;
- }
- #endif
-
- inline char* write_signed_decimal_backward(char* ptr, int decimal, bool show_positive)
- {
- if(decimal == 0)
- {
- *--ptr = '0';
- }
- else
- {
- ptr = write_signed_nonzero_decimal_backward(ptr, decimal, show_positive);
- }
- return ptr;
- }
-
- inline char* write_unsigned_decimal_backward(char* ptr, unsigned int decimal, bool show_positive)
- {
- if(decimal == 0)
- {
- *--ptr = '0';
- }
- else
- {
- ptr = write_unsigned_nonzero_decimal_backward(ptr, decimal, show_positive);
- }
- return ptr;
- }
-
- #if defined (_WIN64) || defined (__LP64__)
- inline char* write_size_t_decimal_backward(char* ptr, size_t decimal, bool show_positive)
- {
- if(decimal == 0)
- {
- *--ptr = '0';
- }
- else
- {
- ptr = write_size_t_nonzero_decimal_backward(ptr, decimal, show_positive);
- }
- return ptr;
- }
- #endif
-}
-
-
-#ifdef WIN32
-#define snprintf _snprintf
-#endif
-
-/// \brief Writes a single character \p c to \p ostream.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, char c)
-{
- ostream.write(&c, 1);
- return ostream;
-}
-
-/// \brief Writes a double-precision floating point value \p d to \p ostream.
-/// The value will be formatted either as decimal with trailing zeros removed, or with scientific 'e' notation, whichever is shorter.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const double d)
-{
- const std::size_t bufferSize = 16;
- char buf[bufferSize];
- ostream.write(buf, snprintf(buf, bufferSize, "%g", d));
- return ostream;
-}
-
-/// \brief Writes a single-precision floating point value \p f to \p ostream.
-/// The value will be formatted either as decimal with trailing zeros removed, or with scientific 'e' notation, whichever is shorter.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const float f)
-{
- return ostream_write(ostream, static_cast<double>(f));
-}
-
-/// \brief Writes a signed integer \p i to \p ostream in decimal form.
-/// A '-' sign will be added if the value is negative.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const int i)
-{
- const std::size_t bufferSize = 16;
-#if 1
- char buf[bufferSize];
- char* begin = TextOutputDetail::write_signed_decimal_backward(buf + bufferSize, i, false);
- ostream.write(begin, (buf + bufferSize) - begin);
-#else
- char buf[bufferSize];
- ostream.write(buf, snprintf(buf, bufferSize, "%i", i));
-#endif
- return ostream;
-}
-
-typedef unsigned int Unsigned;
-
-/// \brief Writes an unsigned integer \p i to \p ostream in decimal form.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const Unsigned i)
-{
- const std::size_t bufferSize = 16;
-#if 1
- char buf[bufferSize];
- char* begin = TextOutputDetail::write_unsigned_decimal_backward(buf + bufferSize, i, false);
- ostream.write(begin, (buf + bufferSize) - begin);
-#else
- char buf[bufferSize];
- ostream.write(buf, snprintf(buf, bufferSize, "%u", i));
-#endif
- return ostream;
-}
-
-#if defined (_WIN64) || defined (__LP64__)
-
-/// \brief Writes a size_t \p i to \p ostream in decimal form.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const size_t i)
-{
- // max is 18446744073709551615, buffer of 32 chars should always be enough
- const std::size_t bufferSize = 32;
-#if 1
- char buf[bufferSize];
- char* begin = TextOutputDetail::write_size_t_decimal_backward(buf + bufferSize, i, false);
- ostream.write(begin, (buf + bufferSize) - begin);
-#else
- char buf[bufferSize];
- ostream.write(buf, snprintf(buf, bufferSize, "%u", i));
-#endif
- return ostream;
-}
-
-#endif
-
-/// \brief Writes a null-terminated \p string to \p ostream.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const char* string)
-{
- ostream.write(string, strlen(string));
- return ostream;
-}
-
-class HexChar
-{
-public:
- char m_value;
- HexChar(char value) : m_value(value)
- {
- }
-};
-
-/// \brief Writes a single character \p c to \p ostream in hexadecimal form.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const HexChar& c)
-{
- const std::size_t bufferSize = 16;
- char buf[bufferSize];
- ostream.write(buf, snprintf(buf, bufferSize, "%X", c.m_value & 0xFF));
- return ostream;
-}
-
-class FloatFormat
-{
-public:
- double m_f;
- int m_width;
- int m_precision;
- FloatFormat(double f, int width, int precision)
- : m_f(f), m_width(width), m_precision(precision)
- {
- }
-};
-
-/// \brief Writes a floating point value to \p ostream with a specific width and precision.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const FloatFormat& formatted)
-{
- const std::size_t bufferSize = 32;
- char buf[bufferSize];
- ostream.write(buf, snprintf(buf, bufferSize, "%*.*lf", formatted.m_width, formatted.m_precision, formatted.m_f));
- return ostream;
-}
-
-// never displays exponent, prints up to 10 decimal places
-class Decimal
-{
-public:
- double m_f;
- Decimal(double f) : m_f(f)
- {
- }
-};
-
-/// \brief Writes a floating point value to \p ostream in decimal form with trailing zeros removed.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const Decimal& decimal)
-{
- const int bufferSize = 22;
- char buf[bufferSize];
- std::size_t length = snprintf(buf, bufferSize, "%10.10lf", decimal.m_f);
- const char* first = buf;
- for(; *first == ' '; ++first)
- {
- }
- const char* last = buf + length - 1;
- for(; *last == '0'; --last)
- {
- }
- if(*last == '.')
- {
- --last;
- }
- ostream.write(first, last - first + 1);
- return ostream;
-}
-
-
-/// \brief Writes a \p range of characters to \p ostream.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const StringRange& range)
-{
- ostream.write(range.first, range.last - range.first);
- return ostream;
-}
-
-template<typename Type>
-class Quoted
-{
-public:
- const Type& m_type;
- Quoted(const Type& type)
- : m_type(type)
- {
- }
-};
-
-template<typename Type>
-inline Quoted<Type> makeQuoted(const Type& type)
-{
- return Quoted<Type>(type);
-}
-
-/// \brief Writes any type to \p ostream with a quotation mark character before and after it.
-template<typename TextOutputStreamType, typename Type>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const Quoted<Type>& quoted)
-{
- return ostream << '"' << quoted.m_type << '"';
-}
-
-
-class LowerCase
-{
-public:
- const char* m_string;
- LowerCase(const char* string) : m_string(string)
- {
- }
-};
-
-/// \brief Writes a string to \p ostream converted to lower-case.
-template<typename TextOutputStreamType>
-inline TextOutputStreamType& ostream_write(TextOutputStreamType& ostream, const LowerCase& lower)
-{
- for(const char* p = lower.m_string; *p != '\0'; ++p)
- {
- ostream << static_cast<char>(std::tolower(*p));
- }
- return ostream;
-}
-
-
-/// \brief A wrapper for a TextInputStream optimised for reading a single character at a time.
-template<typename TextInputStreamType, int SIZE = 1024>
-class SingleCharacterInputStream
-{
- TextInputStreamType& m_inputStream;
- char m_buffer[SIZE];
- char* m_cur;
- char* m_end;
-
- bool fillBuffer()
- {
- m_end = m_buffer + m_inputStream.read(m_buffer, SIZE);
- m_cur = m_buffer;
- return m_cur != m_end;
- }
-public:
-
- SingleCharacterInputStream(TextInputStreamType& inputStream) : m_inputStream(inputStream), m_cur(m_buffer), m_end(m_buffer)
- {
- }
- bool readChar(char& c)
- {
- if(m_cur == m_end && !fillBuffer())
- {
- return false;
- }
-
- c = *m_cur++;
- return true;
- }
-};
-
-/// \brief A wrapper for a TextOutputStream, optimised for writing a single character at a time.
-class SingleCharacterOutputStream : public TextOutputStream
-{
- enum unnamed0 { m_bufsize = 1024 };
- TextOutputStream& m_ostream;
- char m_buffer[m_bufsize];
- char* m_pos;
- const char* m_end;
-
- const char* end() const
- {
- return m_end;
- }
- void reset()
- {
- m_pos = m_buffer;
- }
- void flush()
- {
- m_ostream.write(m_buffer, m_pos - m_buffer);
- reset();
- }
-public:
- SingleCharacterOutputStream(TextOutputStream& ostream) : m_ostream(ostream), m_pos(m_buffer), m_end(m_buffer+m_bufsize)
- {
- }
- ~SingleCharacterOutputStream()
- {
- flush();
- }
- void write(const char c)
- {
- if(m_pos == end())
- {
- flush();
- }
- *m_pos++ = c;
- }
- std::size_t write(const char* buffer, std::size_t length)
- {
- const char*const end = buffer + length;
- for(const char* p = buffer; p != end; ++p)
- {
- write(*p);
- }
- return length;
- }
-};
-
-/// \brief A wrapper for a TextOutputStream, optimised for writing a few characters at a time.
-template<typename TextOutputStreamType, int SIZE = 1024>
-class BufferedTextOutputStream : public TextOutputStream
-{
- TextOutputStreamType outputStream;
- char m_buffer[SIZE];
- char* m_cur;
-
-public:
- BufferedTextOutputStream(TextOutputStreamType& outputStream) : outputStream(outputStream), m_cur(m_buffer)
- {
- }
- ~BufferedTextOutputStream()
- {
- outputStream.write(m_buffer, m_cur - m_buffer);
- }
- std::size_t write(const char* buffer, std::size_t length)
- {
- std::size_t remaining = length;
- for(;;)
- {
- std::size_t n = std::min(remaining, std::size_t((m_buffer + SIZE) - m_cur));
- m_cur = std::copy(buffer, buffer + n, m_cur);
- remaining -= n;
- if(remaining == 0)
- {
- return 0;
- }
- outputStream.write(m_buffer, SIZE);
- m_cur = m_buffer;
- }
- }
-};
-
-#endif
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