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/*
* OpenSCAD (www.openscad.at)
* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
*
* 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
*
*/
#ifndef OPENSCAD_H
#define OPENSCAD_H
#include <QHash>
#include <QVector>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
class Value;
class Expression;
class AbstractFunction;
class BuiltinFunction;
class Function;
class AbstractModule;
class ModuleInstanciation;
class Module;
class Context;
class AbstractNode;
class Value
{
public:
double x, y, z;
QString text;
bool is_vector;
bool is_range;
bool is_string;
bool is_nan;
Value() : x(0), y(0), z(0), is_vector(false), is_range(false), is_string(false), is_nan(true) { }
Value(const QString &t) : x(0), y(0), z(0), text(t), is_vector(false), is_range(false), is_string(true), is_nan(true) { }
Value(double v1) : x(v1), y(0), z(0), is_vector(false), is_range(false), is_string(false), is_nan(false) { }
Value(double v1, double v2, double v3) : x(v1), y(v2), z(v3), is_vector(true), is_range(false), is_string(false), is_nan(false) { }
Value(const Value &v) : x(v.x), y(v.y), z(v.z), text(v.text), is_vector(v.is_vector), is_range(v.is_range), is_string(v.is_string), is_nan(v.is_nan) { }
Value(const Value &v1, const Value &v2, const Value &v3);
Value& operator = (const Value &v);
Value operator + (const Value &v) const;
Value operator - (const Value &v) const;
Value operator * (const Value &v) const;
Value operator / (const Value &v) const;
Value operator % (const Value &v) const;
Value inv() const;
QString dump() const;
};
class Expression
{
public:
QVector<Expression*> children;
Value const_value;
QString var_name;
QString call_funcname;
QVector<QString> call_argnames;
// Math operators: * / % + -
// Invert (prefix '-'): I
// Constant value: C
// Create Vector: V
// Lookup Variable: L
// Lookup Member: M
// Function call: F
char type;
Expression();
~Expression();
Value evaluate(const Context *context) const;
QString dump() const;
};
class AbstractFunction
{
public:
virtual ~AbstractFunction();
virtual Value evaluate(const Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues) const;
virtual QString dump(QString indent, QString name) const;
};
class BuiltinFunction : public AbstractFunction
{
public:
typedef Value (*eval_func_t)(const QVector<Value> &args);
eval_func_t eval_func;
BuiltinFunction(eval_func_t f) : eval_func(f) { }
virtual ~BuiltinFunction();
virtual Value evaluate(const Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues) const;
virtual QString dump(QString indent, QString name) const;
};
class Function : public AbstractFunction
{
public:
QVector<QString> argnames;
QVector<Expression*> argexpr;
Expression *expr;
Function() { }
virtual ~Function();
virtual Value evaluate(const Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues) const;
virtual QString dump(QString indent, QString name) const;
};
extern QHash<QString, AbstractFunction*> builtin_functions;
extern void initialize_builtin_functions();
extern void destroy_builtin_functions();
class AbstractModule
{
public:
virtual ~AbstractModule();
virtual AbstractNode *evaluate(const Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues) const;
virtual QString dump(QString indent, QString name) const;
};
class ModuleInstanciation
{
public:
QString label;
QString modname;
QVector<QString> argnames;
QVector<Expression*> argexpr;
QVector<ModuleInstanciation*> children;
ModuleInstanciation() { }
~ModuleInstanciation();
QString dump(QString indent) const;
AbstractNode *evaluate(const Context *ctx) const;
};
class Module : public AbstractModule
{
public:
QVector<QString> argnames;
QVector<Expression*> argexpr;
QHash<QString, Expression*> assignments;
QHash<QString, AbstractFunction*> functions;
QHash<QString, AbstractModule*> modules;
QVector<ModuleInstanciation*> children;
Module() { }
virtual ~Module();
virtual AbstractNode *evaluate(const Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues) const;
virtual QString dump(QString indent, QString name) const;
};
extern QHash<QString, AbstractModule*> builtin_modules;
extern void initialize_builtin_modules();
extern void destroy_builtin_modules();
class Context
{
public:
const Context *parent;
QHash<QString, Value> variables;
QHash<QString, AbstractFunction*> *functions_p;
QHash<QString, AbstractModule*> *modules_p;
Context(const Context *parent) : parent(parent) { }
void args(const QVector<QString> &argnames, const QVector<Expression*> &argexpr, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues);
Value lookup_variable(QString name) const;
Value evaluate_function(QString name, const QVector<QString> &argnames, const QVector<Value> &argvalues) const;
AbstractNode *evaluate_module(QString name, const QVector<QString> &argnames, const QVector<Value> &argvalues) const;
};
class AbstractNode
{
public:
QVector<AbstractNode*> children;
};
extern AbstractModule *parse(FILE *f, int debug);
#endif
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