lib/ap_get.cc

   1 /*                             -*- C++ -*-
   2  * Copyright (C) 2001 Albert Davis
   3  * Author: Albert Davis <aldavis@gnu.org>
   4  *
   5  * This file is part of "Gnucap", the Gnu Circuit Analysis Package
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 3, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20  * 02110-1301, USA.
  21  *------------------------------------------------------------------
  22  * get value for matching keyword
  23  */
  24 //testing=script 2006.07.17
  25 #include "ap.h"
  26 /*--------------------------------------------------------------------------*/
  27 /* special version of "get" for "bool"
  28  * so "nofoo" works as an equivalent to foo=false
  29  */
  30 bool Get(CS& cmd, const std::string& key, bool* val)
  31 {
  32   if (cmd.umatch(key + ' ')) {
  33     if (cmd.skip1b('=')) {
  34       cmd >> *val;
  35     }else{
  36       *val = true;
  37     }
  38     return true;
  39   }else if (cmd.umatch("no" + key)) {
  40     *val = false;
  41     return true;
  42   }else{
  43     return false;
  44   }
  45 }
  46 /*--------------------------------------------------------------------------*/
  47 template<class T>
  48 bool _Get_int(CS& cmd, const std::string& key, T* val, AP_MOD mod, T scale)
  49 {
  50   if (cmd.umatch(key + " {=}")) {
  51     switch(mod) {
  52     case mNONE:                 *val = T(cmd.ctof()); break;
  53     case mSCALE:    untested(); *val = T(T(cmd.ctof())*scale); break;
  54     case mOFFSET:   untested(); *val = T(T(cmd.ctof())+scale); break;
  55     case mINVERT:   untested(); *val = T(1 / T(cmd.ctof()));   break;
  56     case mPOSITIVE: untested(); *val = T(std::abs(T(cmd.ctof()))); break;
  57     case mOCTAL:                *val = T(cmd.ctoo());           break;
  58     case mHEX:      untested(); *val = T(cmd.ctox());           break;
  59     }
  60     return true;
  61   }else{
  62     return false;
  63   }
  64 }
  65 /*--------------------------------------------------------------------------*/
  66 bool Get(CS& cmd, const std::string& key, short int* val, AP_MOD mod, short int scale)
  67 {
  68         return _Get_int(cmd, key, val, mod, scale);
  69 }
  70 /*--------------------------------------------------------------------------*/
  71 bool Get(CS& cmd, const std::string& key, int* val, AP_MOD mod, int scale)
  72 {
  73         return _Get_int(cmd, key, val, mod, scale);
  74 }
  75 /*--------------------------------------------------------------------------*/
  76 bool Get(CS& cmd, const std::string& key, unsigned* val, AP_MOD mod, unsigned scale)
  77 {
  78         return _Get_int(cmd, key, val, mod, scale);
  79 }
  80 /*--------------------------------------------------------------------------*/
  81 #if 0
  82 bool Get(CS& cmd, const std::string& key, int* val, AP_MOD mod, int scale)
  83 {
  84   if (cmd.umatch(key + " {=}")) {
  85     switch(mod) {
  86     case mNONE:                 *val = int(cmd.ctof());         break;
  87     case mSCALE:    untested(); *val = int(cmd.ctof())*scale;   break;
  88     case mOFFSET:   untested(); *val = int(cmd.ctof())+scale;   break;
  89     case mINVERT:   untested(); *val = 1 / int(cmd.ctof());     break;
  90     case mPOSITIVE: untested(); *val = std::abs(int(cmd.ctof())); break;
  91     case mOCTAL:                *val = cmd.ctoo();              break;
  92     case mHEX:      untested(); *val = cmd.ctox();              break;
  93     }
  94     return true;
  95   }else{
  96     return false;
  97   }
  98 }
  99 #endif
 100 /*--------------------------------------------------------------------------*/
 101 bool Get(CS& cmd, const std::string& key, double* val, AP_MOD mod, double scale)
 102 {
 103   if (cmd.umatch(key + " {=}")) {
 104     switch(mod) {
 105     case mNONE:     untested(); *val = cmd.ctof();              break;
 106     case mSCALE:    untested(); *val = cmd.ctof()*scale;        break;
 107     case mOFFSET:               *val = cmd.ctof()+scale;        break;
 108     case mINVERT:   untested(); *val = 1 / cmd.ctof();          break;
 109     case mPOSITIVE:             *val = std::abs(cmd.ctof());
 110                                                                 trace1(("Get " + std::string((cmd.fullstring()))).c_str(), *val );
 111                                                                 break;
 112     case mOCTAL:    untested(); *val = cmd.ctoo();              break;
 113     case mHEX:      untested(); *val = cmd.ctox();              break;
 114     }
 115     return true;
 116   }else{
 117     return false;
 118   }
 119 }
 120 /*--------------------------------------------------------------------------*/
 121 /*--------------------------------------------------------------------------*/
 122 // vim:ts=8:sw=2:noet: