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/************************************************************************
************************************************************************
FAUST compiler
Copyright (C) 2003-2018 GRAME, Centre National de Creation Musicale
---------------------------------------------------------------------
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
************************************************************************
************************************************************************/
/**
* @file occurrences.cpp
* Count the number of occurrences of each subtree of a root tree.
*/
// Construction of graphic representations
#include "occur.hh"
#include "compatibility.hh"
/**
* Count the number of occurrences of each subtree of root
*/
Occur::Occur(Tree root)
{
fKey = specificKey(root);
countOccurrences(root);
setCount(root, 0); // root as no occurrences in itself
}
/**
* Get the number of occurrences of t
*/
int Occur::getCount(Tree t)
{
Tree c;
return (getProperty(t, fKey, c)) ? c->node().getInt() : 0;
}
/**
* Set the number of occurrences of t
*/
void Occur::setCount(Tree t, int c)
{
setProperty(t, fKey, tree(c));
}
/**
* Creates a specific property key for occurrences count in root
*/
Tree Occur::specificKey(Tree root)
{
char keyname[256];
snprintf(keyname, 256, "OCCURRENCES COUNT IN %p : ", root);
return tree(unique(keyname));
}
/**
* Increment the occurrences count of t and its subtrees
*/
void Occur::countOccurrences(Tree t)
{
setCount(t, getCount(t) + 1); // increment t occurrences count
for (int i = 0; i < t->arity(); i++) {
countOccurrences(t->branch(i));
}
}
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