musrfit/src/tests/spirit/PFunction.cpp

833 lines
30 KiB
C++

/***************************************************************************
PFunction.cpp
Author: Andreas Suter
e-mail: andreas.suter@psi.ch
$Id$
***************************************************************************/
/***************************************************************************
* Copyright (C) 2007 by Andreas Suter *
* andreas.suter@psi.c *
* *
* This program 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. *
* *
* 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <cstdio>
#include <cmath>
#include <iostream>
using namespace std;
#include <boost/algorithm/string/trim.hpp> // for stripping leading whitespace in std::string
#include <boost/math/special_functions/acosh.hpp>
#include <boost/math/special_functions/asinh.hpp>
#include <boost/math/special_functions/atanh.hpp>
#include "PFunction.h"
//--------------------------------------------------------------------------
// Constructor
//--------------------------------------------------------------------------
/**
* <p>
*
* info is an abstract syntax tree (AST) generate by the spirit parse library
* (see http://spirit.sourceforge.net/distrib/spirit_1_8_5/libs/spirit/doc/trees.html).
* It contains a single parsed msr-function in an ascii representation.
* Here it takes the from
* assignment (root node)
* |_ 'FUNx'
* |_ '='
* |_ expression
* |_ ...
*
* Since it would be inefficient to evaluate this AST directly it is transferred to
* a more efficient tree fFuncs here in the constructor.
*
* \param info AST parse tree holding a single parsed msr-function in an ascii representation
* \param param the parameter vector
* \param map the map vector
*/
PFunction::PFunction(tree_parse_info<> info, vector<double> param, vector<int> map, bool debug) :
fDebug(debug)
{
cout << endl << "in PFunction ...";
fInfo = info;
fParam = param;
fMap = map;
// init class variables
fValid = true;
fFuncNo = -1;
// print out ast tree
if (fDebug) {
PrintTree(info);
return;
}
// check parameter and map range
if (!CheckParameterAndMapRange()) {
fValid = false;
return;
}
// generate function evaluation tree
if (!GenerateFuncEvalTree()) {
fValid = false;
return;
}
EvaluateTree(info);
cout << endl << "fFuncString: '" << fFuncString << "'";
cout << endl;
}
//--------------------------------------------------------------------------
// Destructor
//--------------------------------------------------------------------------
/**
* <p>
*/
PFunction::~PFunction()
{
// cout << endl << "in ~PFunction ...";
fParam.clear();
fMap.clear();
CleanupFuncEvalTree();
}
//--------------------------------------------------------------------------
// InitNode (protected)
//--------------------------------------------------------------------------
/**
* <p>
*
* \param node
*/
void PFunction::InitNode(PFuncTreeNode &node)
{
node.fID = 0;
node.fOperatorTag = 0;
node.fFunctionTag = 0;
node.fIvalue = 0;
node.fSign = false;
node.fDvalue = 0.0;
}
//-------------------------------------------------------------
// CheckParameterRange (protected)
//-------------------------------------------------------------
/**
* <p>
*
*/
bool PFunction::CheckParameterAndMapRange()
{
return CheckParameterAndMapInTree(fInfo.trees.begin());
}
//-------------------------------------------------------------
// CheckParameterAndMapInTree (protected)
//-------------------------------------------------------------
/**
* <p> walk through the tree and check if the parameter found
* are within a valid range given by the size of fParam.
*
* \param i
*/
bool PFunction::CheckParameterAndMapInTree(iter_t const& i)
{
bool success = true;
int value;
if (i->value.id() == PFunctionGrammar::funLabelID) {
assert(i->children.size() == 0);
SetFuncNo(i);
} else if (i->value.id() == PFunctionGrammar::parameterID) {
assert(i->children.size() == 0);
string str(i->value.begin(), i->value.end());
boost::algorithm::trim(str);
cout << endl << "parameterID: value = '" << str << "'" << endl;
bool minus_sign_present = false;
if (str[0] == '-')
minus_sign_present = true;
cout << endl << ">> minus_sign_present = " << minus_sign_present;
if (minus_sign_present)
sscanf(str.c_str(), "-PAR%d", &value);
else
sscanf(str.c_str(), "PAR%d", &value);
cout << endl << ">> value = " << value << ", fParam.size() = " << fParam.size() << endl << "----";
if (value > (int)fParam.size()) { // parameter number found > number of parameters
cout << endl << "**ERROR**: found parameter " << str << " with only " << fParam.size() << " parameters present?!?";
fValid = false;
}
} else if (i->value.id() == PFunctionGrammar::mapID) {
assert(i->children.size() == 0);
string str(i->value.begin(), i->value.end());
cout << endl << "mapID: value = " << str << endl;
sscanf(str.c_str(), "MAP%d", &value);
//cout << endl << ">> value = " << value << ", fParam.size() = " << fParam.size();
if (value > (int)fMap.size()) { // parameter number found > number of parameters
cout << endl << "**ERROR**: found map " << str << " with only " << fMap.size() << " maps present?!?";
fValid = false;
}
} else if (i->value.id() == PFunctionGrammar::functionID) {
assert(i->children.size() == 3);
// i: '(', 'expression', ')'
success = CheckParameterAndMapInTree(i->children.begin()+1); // thats the real stuff
} else if (i->value.id() == PFunctionGrammar::factorID) {
// i: real | parameter | map | function | expression
assert(i->children.size() == 1);
success = CheckParameterAndMapInTree(i->children.begin());
} else if (i->value.id() == PFunctionGrammar::termID) {
// '*' or '/' i: lhs, rhs
assert(i->children.size() == 2);
success = CheckParameterAndMapInTree(i->children.begin());
success = CheckParameterAndMapInTree(i->children.begin()+1);
} else if (i->value.id() == PFunctionGrammar::expressionID) {
// '+' or '-' i: lhs, rhs
assert(i->children.size() == 2);
success = CheckParameterAndMapInTree(i->children.begin());
success = CheckParameterAndMapInTree(i->children.begin()+1);
} else if (i->value.id() == PFunctionGrammar::assignmentID) {
// i: 'FUNx', '=', 'expression'
assert(i->children.size() == 3);
success = CheckParameterAndMapInTree(i->children.begin()); // FUNx
success = CheckParameterAndMapInTree(i->children.begin()+2); // this is the real stuff
}
return success;
}
//-------------------------------------------------------------
// SetFuncNo (protected)
//-------------------------------------------------------------
/**
* <p>
*
* \param i
*/
bool PFunction::SetFuncNo(iter_t const& i)
{
int funNo = -1;
int status;
bool success = true;
// get string from tree
string str(i->value.begin(), i->value.end());
// extract function number from string
status = sscanf(str.c_str(), "FUN%d", &funNo);
//cout << endl << "SetFuncNo: status = " << status << ", funNo = " << funNo;
if (status == 1) { // found 1 int
fFuncNo = funNo;
} else { // wrong string
success = false;
}
return success;
}
//-------------------------------------------------------------
// GenerateFuncEvalTree (protected)
//-------------------------------------------------------------
/**
* <p>
*
*/
bool PFunction::GenerateFuncEvalTree()
{
InitNode(fFunc);
FillFuncEvalTree(fInfo.trees.begin(), fFunc);
return true;
}
//-------------------------------------------------------------
// FillFuncEvalTree (protected)
//-------------------------------------------------------------
/**
* <p>
*
*/
void PFunction::FillFuncEvalTree(iter_t const& i, PFuncTreeNode &node)
{
double dvalue;
int ivalue;
int status;
string str;
PFuncTreeNode child;
InitNode(child);
if (i->value.id() == PFunctionGrammar::realID) { // handle number
str = string(i->value.begin(), i->value.end()); // get string
status = sscanf(str.c_str(), "%lf", &dvalue); // convert string to double
node.fID = PFunctionGrammar::realID; // keep the ID
node.fDvalue = dvalue; // keep the value
cout << endl << ">> realID: value = " << dvalue;
} else if (i->value.id() == PFunctionGrammar::constPiID) { // handle constant pi
node.fID = PFunctionGrammar::constPiID; // keep the ID
node.fDvalue = 3.14159265358979323846; // keep the value
} else if (i->value.id() == PFunctionGrammar::constGammaMuID) { // handle constant gamma_mu
node.fID = PFunctionGrammar::constGammaMuID; // keep the ID
node.fDvalue = 0.0135538817; // keep the value
} else if (i->value.id() == PFunctionGrammar::parameterID) { // handle parameter number
str = string(i->value.begin(), i->value.end()); // get string
if (strstr(str.c_str(), "-")) {
node.fSign = true;
status = sscanf(str.c_str(), " -PAR%d", &ivalue); // convert string to parameter number
} else {
status = sscanf(str.c_str(), " PAR%d", &ivalue); // convert string to parameter number
}
node.fID = PFunctionGrammar::parameterID; // keep the ID
node.fIvalue = ivalue; // keep the value
cout << endl << ">> parameterID: value = " << ivalue;
} else if (i->value.id() == PFunctionGrammar::mapID) { // handle map number
str = string(i->value.begin(), i->value.end()); // get string
status = sscanf(str.c_str(), "MAP%d", &ivalue); // convert string to map number
node.fID = PFunctionGrammar::mapID; // keep the ID
node.fIvalue = ivalue; // keep the value
// cout << endl << ">> mapID: value = " << ivalue;
} else if (i->value.id() == PFunctionGrammar::functionID) { // handle function like cos ...
// keep the id
node.fID = PFunctionGrammar::functionID;
// keep function tag
// i: '(', 'expression', ')'
str = string(i->value.begin(), i->value.end()); // get string
// cout << endl << ">> functionID: value = " << str;
if (!strcmp(str.c_str(), "COS"))
node.fFunctionTag = FUN_COS;
else if (!strcmp(str.c_str(), "SIN"))
node.fFunctionTag = FUN_SIN;
else if (!strcmp(str.c_str(), "TAN"))
node.fFunctionTag = FUN_TAN;
else if (!strcmp(str.c_str(), "COSH"))
node.fFunctionTag = FUN_COSH;
else if (!strcmp(str.c_str(), "SINH"))
node.fFunctionTag = FUN_SINH;
else if (!strcmp(str.c_str(), "TANH"))
node.fFunctionTag = FUN_TANH;
else if (!strcmp(str.c_str(), "ACOS"))
node.fFunctionTag = FUN_ACOS;
else if (!strcmp(str.c_str(), "ASIN"))
node.fFunctionTag = FUN_ASIN;
else if (!strcmp(str.c_str(), "ATAN"))
node.fFunctionTag = FUN_ATAN;
else if (!strcmp(str.c_str(), "ACOSH"))
node.fFunctionTag = FUN_ACOSH;
else if (!strcmp(str.c_str(), "ASINH"))
node.fFunctionTag = FUN_ASINH;
else if (!strcmp(str.c_str(), "ATANH"))
node.fFunctionTag = FUN_ATANH;
else if (!strcmp(str.c_str(), "LOG"))
node.fFunctionTag = FUN_LOG;
else if (!strcmp(str.c_str(), "LN"))
node.fFunctionTag = FUN_LN;
else if (!strcmp(str.c_str(), "EXP"))
node.fFunctionTag = FUN_EXP;
else {
cout << endl << "**PANIC ERROR**: function " << str << " doesn't exist, but you never should have reached this point!";
assert(0);
}
// add node
node.children.push_back(child);
// i: '(', 'expression', ')'
FillFuncEvalTree(i->children.begin()+1, node.children[0]);
} else if (i->value.id() == PFunctionGrammar::factorID) {
// cout << endl << ">> factorID";
// keep the id
node.fID = PFunctionGrammar::factorID;
// add child lhs
node.children.push_back(child);
FillFuncEvalTree(i->children.begin(), node.children[0]);
} else if (i->value.id() == PFunctionGrammar::termID) {
// keep the id
node.fID = PFunctionGrammar::termID;
// keep operator tag
if (*i->value.begin() == '*')
node.fOperatorTag = OP_MUL;
else
node.fOperatorTag = OP_DIV;
/*
if (node.fOperatorTag == OP_MUL)
cout << endl << ">> termID: value = *";
else
cout << endl << ">> termID: value = /";
*/
// add child lhs
node.children.push_back(child);
FillFuncEvalTree(i->children.begin(), node.children[0]);
// add child rhs
node.children.push_back(child);
FillFuncEvalTree(i->children.begin()+1, node.children[1]);
} else if (i->value.id() == PFunctionGrammar::expressionID) { // handle expression
// keep the id
node.fID = PFunctionGrammar::expressionID;
// keep operator tag
if (*i->value.begin() == '+')
node.fOperatorTag = OP_ADD;
else
node.fOperatorTag = OP_SUB;
/*
if (node.fOperatorTag == OP_ADD)
cout << endl << ">> expressionID: value = +";
else
cout << endl << ">> expressionID: value = -";
*/
// add child lhs
node.children.push_back(child);
FillFuncEvalTree(i->children.begin(), node.children[0]);
// add child rhs
node.children.push_back(child);
FillFuncEvalTree(i->children.begin()+1, node.children[1]);
} else if (i->value.id() == PFunctionGrammar::assignmentID) {
// nothing to be done except to pass the next element in the ast
// i: 'funx', '=', 'expression'
FillFuncEvalTree(i->children.begin()+2, node);
}
}
//-------------------------------------------------------------
// Eval (public)
//-------------------------------------------------------------
/**
* <p>
*
*/
double PFunction::Eval()
{
return EvalNode(fFunc);
}
//-------------------------------------------------------------
// EvalNode (protected)
//-------------------------------------------------------------
/**
* <p>
*
* \param node
*/
double PFunction::EvalNode(PFuncTreeNode &node)
{
if (node.fID == PFunctionGrammar::realID) {
return node.fDvalue;
} else if (node.fID == PFunctionGrammar::constPiID) {
return node.fDvalue;
} else if (node.fID == PFunctionGrammar::constGammaMuID) {
return node.fDvalue;
} else if (node.fID == PFunctionGrammar::parameterID) {
double dval;
if (node.fSign)
dval = -fParam[node.fIvalue-1];
else
dval = fParam[node.fIvalue-1];
return dval;
} else if (node.fID == PFunctionGrammar::mapID) {
return fParam[fMap[node.fIvalue-1]-1];
} else if (node.fID == PFunctionGrammar::functionID) {
if (node.fFunctionTag == FUN_COS) {
return cos(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_SIN) {
return sin(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_TAN) {
return tan(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_COSH) {
return cosh(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_SINH) {
return sinh(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_TANH) {
return tanh(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_ACOS) {
return acos(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_ASIN) {
return asin(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_ATAN) {
return atan(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_ACOSH) {
return boost::math::acosh(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_ASINH) {
return boost::math::asinh(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_ATANH) {
return boost::math::atanh(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_LOG) {
return log(EvalNode(node.children[0]))/log(10.0);
} else if (node.fFunctionTag == FUN_LN) {
return log(EvalNode(node.children[0]));
} else if (node.fFunctionTag == FUN_EXP) {
return exp(EvalNode(node.children[0]));
} else {
cout << endl << "**PANIC ERROR**: PFunction::EvalNode: node.fID == PFunctionGrammar::functionID: you never should have reached this point!" << endl;
assert(0);
}
} else if (node.fID == PFunctionGrammar::factorID) {
return EvalNode(node.children[0]);
} else if (node.fID == PFunctionGrammar::termID) {
if (node.fOperatorTag == OP_MUL) {
return EvalNode(node.children[0]) * EvalNode(node.children[1]);
} else {
double denominator = EvalNode(node.children[1]);
if (denominator == 0.0) {
cout << endl << "**PANIC ERROR**: PFunction::EvalNode: division by 0.0" << endl;
assert(0);
}
return EvalNode(node.children[0]) / denominator;
}
} else if (node.fID == PFunctionGrammar::expressionID) {
if (node.fOperatorTag == OP_ADD) {
return EvalNode(node.children[0]) + EvalNode(node.children[1]);
} else {
return EvalNode(node.children[0]) - EvalNode(node.children[1]);
}
} else {
cout << endl << "**PANIC ERROR**: PFunction::EvalNode: you never should have reached this point!" << endl;
assert(0);
}
return 0.0;
}
//-------------------------------------------------------------
// CleanupFuncEvalTree (protected)
//-------------------------------------------------------------
/**
* <p>
*
*/
void PFunction::CleanupFuncEvalTree()
{
// clean up all children
CleanupNode(fFunc);
}
//-------------------------------------------------------------
// CleanupNode (protected)
//-------------------------------------------------------------
/**
* <p>
*
* \param node
*/
void PFunction::CleanupNode(PFuncTreeNode &node)
{
if (node.children.size() != 0) {
for (unsigned int i=0; i<node.children.size(); i++) {
CleanupNode(node.children[i]);
}
node.children.clear();
}
}
//-------------------------------------------------------------
// EvaluateTree (protected)
//-------------------------------------------------------------
long PFunction::EvaluateTree(tree_parse_info<> info)
{
return EvalTreeExpression(info.trees.begin());
}
//-------------------------------------------------------------
// EvalTreeExpression (protected)
//-------------------------------------------------------------
long PFunction::EvalTreeExpression(iter_t const& i)
{
static int counter = 0;
static int termOp = 0;
cout << endl << counter <<": in EvalExpression. i->value = '" <<
string(i->value.begin(), i->value.end()) <<
"' i->children.size() = " << i->children.size() << endl;
if (i->value.id() == PFunctionGrammar::realID) {
assert(i->children.size() == 0);
cout << endl << "realID: children = " << i->children.size();
cout << endl << "realID: " << string(i->value.begin(), i->value.end());
cout << endl << "-----";
if (*i->value.begin() == '-')
fFuncString += "(";
fFuncString += string(i->value.begin(), i->value.end());
if (*i->value.begin() == '-')
fFuncString += ")";
} else if (i->value.id() == PFunctionGrammar::constPiID) {
assert(i->children.size() == 0);
cout << endl << "constPiID: children = " << i->children.size();
cout << endl << "constPiID: " << string(i->value.begin(), i->value.end());
cout << endl << "-----";
fFuncString += string(i->value.begin(), i->value.end());
} else if (i->value.id() == PFunctionGrammar::constGammaMuID) {
assert(i->children.size() == 0);
cout << endl << "constGammaMuID: children = " << i->children.size();
cout << endl << "constGammaMuID: " << string(i->value.begin(), i->value.end());
cout << endl << "-----";
fFuncString += string(i->value.begin(), i->value.end());
} else if (i->value.id() == PFunctionGrammar::funLabelID) {
assert(i->children.size() == 0);
//SetFuncNo(i);
cout << endl << "funLabelID: children = " << i->children.size();
cout << endl << "funLabelID: value = " << string(i->value.begin(), i->value.end());
cout << endl << "-----";
fFuncString += string(i->value.begin(), i->value.end()); // funx
} else if (i->value.id() == PFunctionGrammar::parameterID) {
assert(i->children.size() == 0);
cout << endl << "parameterID: children = " << i->children.size();
cout << endl << "parameterID: value = " << string(i->value.begin(), i->value.end());
cout << endl << "-----";
fFuncString += string(i->value.begin(), i->value.end());
} else if (i->value.id() == PFunctionGrammar::mapID) {
assert(i->children.size() == 0);
cout << endl << "mapID: children = " << i->children.size();
cout << endl << "mapID: value = " << string(i->value.begin(), i->value.end());
cout << endl << "-----";
fFuncString += string(i->value.begin(), i->value.end());
} else if (i->value.id() == PFunctionGrammar::functionID) {
assert(i->children.size() == 3);
cout << endl << "functionID: children = " << i->children.size();
cout << endl << "functionID: value = " << string(i->value.begin(), i->value.end());
cout << endl << "-----";
// '(', expression, ')'
counter++;
fFuncString += string(i->value.begin(), i->value.end());
fFuncString += "(";
EvalTreeExpression(i->children.begin()+1); // the real stuff
fFuncString += ")";
counter--;
} else if (i->value.id() == PFunctionGrammar::factorID) {
cout << endl << "factorID: children = " << i->children.size();
counter++;
return EvalTreeExpression(i->children.begin());
counter--;
} else if (i->value.id() == PFunctionGrammar::termID) {
cout << endl << "termID: children = " << i->children.size();
counter++;
termOp++;
if (*i->value.begin() == '*') {
cout << endl << "termID: '*'";
assert(i->children.size() == 2);
EvalTreeExpression(i->children.begin());
fFuncString += " * ";
EvalTreeExpression(i->children.begin()+1);
} else if (*i->value.begin() == '/') {
cout << endl << "termID: '/'";
assert(i->children.size() == 2);
EvalTreeExpression(i->children.begin());
fFuncString += " / ";
EvalTreeExpression(i->children.begin()+1);
} else {
assert(0);
}
termOp--;
counter--;
} else if (i->value.id() == PFunctionGrammar::expressionID) {
cout << endl << "expressionID: children = " << i->children.size();
if (termOp > 0)
fFuncString += "(";
if (*i->value.begin() == '+') {
cout << endl << "expressionID: '+'";
assert(i->children.size() == 2);
counter++;
EvalTreeExpression(i->children.begin());
fFuncString += " + ";
EvalTreeExpression(i->children.begin()+1);
counter--;
} else if (*i->value.begin() == '-') {
cout << endl << "expressionID: '-'";
assert(i->children.size() == 2);
counter++;
EvalTreeExpression(i->children.begin());
fFuncString += " - ";
EvalTreeExpression(i->children.begin()+1);
counter--;
} else {
assert(0);
}
if (termOp > 0)
fFuncString += ")";
} else if (i->value.id() == PFunctionGrammar::assignmentID) {
cout << endl << "assignmentID: children = " << i->children.size();
assert(i->children.size() == 3);
counter++;
EvalTreeExpression(i->children.begin());
EvalTreeExpression(i->children.begin()+1); // this is the string "="
EvalTreeExpression(i->children.begin()+2); // this is the real stuff
counter--;
} else if (*i->value.begin() == '=') {
cout << endl << "'=' in assignment";
fFuncString += " = ";
} else {
assert(0);
}
return 0;
}
//-------------------------------------------------------------
// PrintTree (protected)
//-------------------------------------------------------------
long PFunction::PrintTree(tree_parse_info<> info)
{
cout << endl << "********************************************";
cout << endl << ">> PrintTree";
cout << endl << "********************************************";
long value = PrintTreeExpression(info.trees.begin());
cout << endl << "********************************************";
cout << endl;
return value;
}
//-------------------------------------------------------------
// PrintTreeExpression (protected)
//-------------------------------------------------------------
long PFunction::PrintTreeExpression(iter_t const& i)
{
string str;
iter_t j;
if (i->value.id() == PFunctionGrammar::realID) {
if (i->children.size() == 0) {
str = string(i->value.begin(), i->value.end());
cout << endl << ">> " << str;
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else if (i->value.id() == PFunctionGrammar::funLabelID) {
if (i->children.size() == 0) {
j = i->children.begin();
str = string(j->value.begin(), j->value.end());
cout << endl << ">> " << str;
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else if (i->value.id() == PFunctionGrammar::parameterID) {
if (i->children.size() == 0) {
str = string(i->value.begin(), i->value.end());
cout << endl << ">> " << str;
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else if (i->value.id() == PFunctionGrammar::mapID) {
if (i->children.size() == 0) {
str = string(i->value.begin(), i->value.end());
cout << endl << ">> " << str;
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else if (i->value.id() == PFunctionGrammar::functionID) {
// i: '(', 'expression', ')'
str = string(i->value.begin(), i->value.end());
cout << endl << ">> " << str;
if (i->children.size() == 3) {
j = i->children.begin();
str = string(j->value.begin(), j->value.end());
cout << endl << ">> " << str;
PrintTreeExpression(i->children.begin()+1);
j = i->children.begin()+2;
str = string(j->value.begin(), j->value.end());
cout << endl << ">> " << str;
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else if (i->value.id() == PFunctionGrammar::factorID) {
// i: real | parameter | map | function | expression
if (i->children.size() == 1) {
PrintTreeExpression(i->children.begin());
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else if (i->value.id() == PFunctionGrammar::termID) {
// '*' or '/' i: lhs, rhs
str = string(i->value.begin(), i->value.end());
cout << endl << ">> " << str;
if (i->children.size() == 2) {
PrintTreeExpression(i->children.begin());
PrintTreeExpression(i->children.begin()+1);
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else if (i->value.id() == PFunctionGrammar::expressionID) {
// '+' or '-' i: lhs, rhs
str = string(i->value.begin(), i->value.end());
cout << endl << ">> " << str;
if (i->children.size() == 2) {
PrintTreeExpression(i->children.begin());
PrintTreeExpression(i->children.begin()+1);
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else if (i->value.id() == PFunctionGrammar::assignmentID) {
// i: 'funx', '=', 'expression'
if (i->children.size() == 3) {
j = i->children.begin();
str = string(j->value.begin(), j->value.end());
cout << endl << ">> " << str;
j = i->children.begin()+1;
str = string(j->value.begin(), j->value.end());
cout << endl << ">> " << str;
PrintTreeExpression(i->children.begin()+2);
} else {
for (unsigned int k=0; k<i->children.size(); k++) {
j = i->children.begin()+k;
str = string(j->value.begin(), j->value.end());
cout << endl << "!> " << str;
}
}
} else {
cout << endl << "this point should never have been reached :-(" << endl;
assert(0);
}
return 0;
}