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- C++ and Tcl based backend server: many support classes for interfacing to w11 system designs, and the associated Tcl bindings. - add 'asm-11', a simple, Macro-11 syntax subset combatible, assembler. - use now doxygen 1.8.3.1, generate c++,tcl, and vhdl source docs
159 lines
4.2 KiB
C++
159 lines
4.2 KiB
C++
// $Id: RiosState.cpp 488 2013-02-16 18:49:47Z mueller $
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//
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// Copyright 2006-2011 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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//
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// This program is free software; you may redistribute and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation, either version 2, or at your option any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for complete details.
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//
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// Revision History:
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// Date Rev Version Comment
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// 2011-01-30 357 1.0 Adopted from CTBioState
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// 2006-04-16 - - Last change on CTBioState
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// ---------------------------------------------------------------------------
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/*!
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\file
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\version $Id: RiosState.cpp 488 2013-02-16 18:49:47Z mueller $
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\brief Implemenation of RiosState.
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*/
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#include "RiosState.hpp"
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using namespace std;
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/*!
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\class Retro::RiosState
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\brief Stack object for ostream state. **
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*/
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//------------------------------------------+-----------------------------------
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// all method definitions in namespace Retro
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namespace Retro {
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//! Construct with stream.
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RiosState::RiosState(ios& stream)
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: fStream(stream)
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{
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fOldFlags = fStream.flags();
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fOldPrecision = -1;
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fOldFill = 0;
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fCtype = 0;
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}
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//------------------------------------------+-----------------------------------
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//! Construct from stream and format.
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RiosState::RiosState(ios& stream, const char* form, int prec)
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: fStream(stream)
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{
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fOldFlags = fStream.flags();
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fOldPrecision = -1;
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fOldFill = 0;
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SetFormat(form, prec);
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}
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//------------------------------------------+-----------------------------------
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//! Destructor.
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RiosState::~RiosState()
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{
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fStream.flags(fOldFlags);
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if (fOldPrecision >= 0) fStream.precision(fOldPrecision);
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if (fOldFill != 0) fStream.fill(fOldFill);
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}
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//------------------------------------------+-----------------------------------
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//! Setup format.
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void RiosState::SetFormat(const char* form, int prec)
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{
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bool b_plus = false;
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bool b_minus = false;
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bool b_point = false;
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bool b_dollar = false;
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bool b_internal = false;
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char c_ctype = 0;
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char c_fill = 0;
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char c;
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if (form == 0) form = ""; // allow null as format
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for (c = *form++; ; c = *form++) {
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if (c == '+') { b_plus = true; continue;}
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if (c == '-') { b_minus = true; continue;}
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if (c == '.') { b_point = true; continue;}
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if (c == '$') { b_dollar = true; continue;}
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break;
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}
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if (c != 0 && isalpha(c)) { c_ctype = c; c = *form++; }
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if (c != 0) c_fill = c;
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if (prec >= 0) {
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int i_old_precision = fStream.precision(prec);
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if (fOldPrecision < 0) fOldPrecision = i_old_precision;
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}
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if (c_fill != 0) {
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char c_old_fill = fStream.fill(c_fill);
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if (fOldFill == 0) fOldFill = c_old_fill;
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}
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fCtype = c_ctype;
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switch(c_ctype) {
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case 'd':
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b_internal = !b_minus & (c_fill == '0');
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fStream.setf(ios::dec,ios::basefield);
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break;
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case 'o':
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b_internal = !b_minus & (c_fill == '0');
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fStream.setf(ios::oct,ios::basefield);
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break;
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case 'x':
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case 'X':
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b_internal = !b_minus & (c_fill == '0');
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fStream.setf(ios::hex,ios::basefield);
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if (isupper(c_ctype)) fStream.setf(ios::uppercase);
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break;
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case 'g':
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case 'G':
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b_internal = !b_minus & (c_fill == '0');
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fStream.setf(ios_base::fmtflags(0),ios::floatfield);
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if (isupper(c_ctype)) fStream.setf(ios::uppercase);
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break;
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case 'f':
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b_internal = !b_minus & (c_fill == '0');
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fStream.setf(ios::fixed,ios::floatfield);
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break;
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case 'e':
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case 'E':
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b_internal = !b_minus & (c_fill == '0');
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fStream.setf(ios::scientific,ios::floatfield);
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if (isupper(c_ctype)) fStream.setf(ios::uppercase);
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break;
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case 's':
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case 'p':
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case 'c':
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break;
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}
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{
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ios_base::fmtflags l_flags = ios_base::fmtflags(0);
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if (b_plus) l_flags |= ios::showpos;
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if (b_point) l_flags |= ios::showpoint;
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if (b_dollar) l_flags |= ios::showbase;
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fStream.setf(l_flags);
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fStream.setf(b_internal ? ios::internal :
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(b_minus ? ios::left : ios::right), ios::adjustfield);
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}
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}
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} // end namespace Retro
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