interpretor/preprocessor/faust-0.9.47mr3/compiler/utils/names.cpp

   1 /************************************************************************
   2  ************************************************************************
   3     FAUST compiler
   4         Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
   5     ---------------------------------------------------------------------
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  ************************************************************************
  20  ************************************************************************/
  21
  22
  23 /**
  24  * \file eval.cpp
  25  * Interface for names propagation.
  26  *
  27  **/
  28
  29
  30 #include "ppsig.hh"
  31 #include "names.hh"
  32 #include "property.hh"
  33 #include "ppsig.hh"
  34 #include "doc_Text.hh"
  35 #include "Text.hh"
  36 #include <assert.h>
  37
  38
  39 // History
  40 // 2009/09/08 : get/setDefNameProperty
  41
  42
  43 extern int gMaxNameSize;
  44
  45
  46 /**
  47  * Definition name property : a property to keep track of the definition name
  48  * of an expression. Whenever an identifier is evaluated, it is attached as a
  49  * property of its definitionObviously there is no perfect solution since a same
  50  * definition quand be given to different names.
  51  */
  52 Tree DEFNAMEPROPERTY = tree(symbol("DEFNAMEPROPERTY"));
  53
  54 void setDefNameProperty(Tree t, Tree id)
  55 {
  56         //cerr << "setDefNameProperty : " << *id << " FOR " << t << "#" << boxpp(t) << endl;
  57         setProperty(t, DEFNAMEPROPERTY, id);
  58 }
  59
  60 void setDefNameProperty(Tree t, const string& name)
  61 {
  62         //cerr << "setDefNameProperty : " << name << " FOR " << t << "#" << boxpp(t) << endl;
  63         int             n = name.size();
  64         int     m = (gMaxNameSize>1023) ? 1023 : gMaxNameSize;
  65         if (n > m) {
  66                 // the name is too long we reduce it to 2/3 of maxsize
  67                 char    buf[1024];
  68                 int i = 0;
  69                 // copy first third
  70                 for (; i < m/3; i++) { buf[i] = name[i]; }
  71                 // add ...
  72                 buf[i++] = '.';
  73                 buf[i++] = '.';
  74                 buf[i++] = '.';
  75                 // copy last third
  76                 for (int c = n-m/3; c<n; c++, i++) { buf[i] = name[c]; }
  77                 buf[i] = 0;
  78                 setProperty(t, DEFNAMEPROPERTY, tree(buf));
  79         } else {
  80                 setProperty(t, DEFNAMEPROPERTY, tree(name.c_str()));
  81         }
  82
  83 }
  84
  85 bool getDefNameProperty(Tree t, Tree& id)
  86 {
  87         //cerr << "getDefNameProperty of : " << t << endl;
  88         return getProperty(t, DEFNAMEPROPERTY, id);
  89 }
  90
  91
  92 /**
  93  * Convert a definition name (can be long) into a short nickname
  94  * that can be used as an equation name in latex
  95  * @todo Simplify long definition names.
  96  */
  97 string defName2NickName (const string& defname)
  98 {
  99         return defname;
 100 }
 101
 102 Tree NICKNAMEPROPERTY = tree(symbol("NICKNAMEPROPERTY"));
 103
 104
 105 /**
 106  * Set the nickname property of a signal
 107  */
 108 void setSigNickname(Tree t, const string& id)
 109 {
 110         Tree    s,d;
 111         if (isSigFixDelay(t,s,d) && isZero(d)) {
 112                 setProperty(s, NICKNAMEPROPERTY, tree(id));
 113         } else {
 114                 setProperty(t, NICKNAMEPROPERTY, tree(id));
 115         }
 116 }
 117
 118
 119 /**
 120  * Get the nickname property of a signal
 121  */
 122 bool getSigNickname(Tree t, Tree& id)
 123 {
 124         bool r = getProperty(t, NICKNAMEPROPERTY, id);
 125         return r;
 126 }
 127
 128
 129
 130 /**
 131  * set the nickname property of a list of signals. If the list
 132  * contains more than one signal, adds an index to the nickname
 133  */
 134 void setSigListNickName (Tree  lsig, const string& nickname)
 135 {
 136         assert(isList(lsig));
 137
 138         if (isNil(tl(lsig))) {
 139                 setSigNickname(hd(lsig), nickname);
 140         } else {
 141                 int     i=0;
 142                 while (!isNil(lsig)) {
 143                         setSigNickname(hd(lsig), subst("$0_$1", nickname, T(++i)));
 144                         lsig = tl(lsig);
 145                 }
 146         }
 147 }
 148
 149
 150
 151