mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-26 03:37:53 +00:00
05871836b9
Stats before: Strings: 12048 mallocs: 55629 after: Strings: 6370 mallocs: 42117 Here Strings are non-empty strings. Mallocs are string-related mallocs including mallocs in HashMap BaseNode. svn-id: r22841
116 lines
2.7 KiB
C++
116 lines
2.7 KiB
C++
/* ScummVM - Scumm Interpreter
|
|
* Copyright (C) 2006 The ScummVM project
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* $URL$
|
|
* $Id$
|
|
*
|
|
*/
|
|
|
|
#ifndef GUI_EVAL_H
|
|
#define GUI_EVAL_H
|
|
|
|
#include "common/stdafx.h"
|
|
#include "common/str.h"
|
|
#include "common/hashmap.h"
|
|
|
|
namespace GUI {
|
|
|
|
using Common::String;
|
|
using Common::HashMap;
|
|
|
|
#define EVAL_UNDEF_VAR -13375
|
|
|
|
enum tokenTypes {
|
|
tDelimiter,
|
|
tVariable,
|
|
tNumber,
|
|
tString
|
|
};
|
|
|
|
enum evalErrors {
|
|
eSyntaxError,
|
|
eExtraBracket,
|
|
eUnclosedBracket,
|
|
eBadExpr,
|
|
eUndefVar
|
|
};
|
|
|
|
class Eval {
|
|
public:
|
|
Eval();
|
|
~Eval();
|
|
|
|
int eval(const String &input, const String §ion, const String &name, int startpos);
|
|
void setAlias(const String §ion, const char *name, const String value);
|
|
void setVar(const String §ion, const char *name, const String value);
|
|
|
|
void setParent(const String name);
|
|
|
|
void setVar(const char *name, int val) { _vars[name] = val; }
|
|
void setAlias(const char *name, const String val) { _aliases[name] = val; }
|
|
|
|
int getVar(String s) { return getVar_(s.c_str()); }
|
|
int getVar(String s, int def) {
|
|
int val = getVar_(s.c_str());
|
|
return (val == EVAL_UNDEF_VAR) ? def : val;
|
|
};
|
|
|
|
uint getNumVars() { return _vars.size(); }
|
|
|
|
void reset();
|
|
|
|
struct CharStar_EqualTo {
|
|
bool operator()(const char *x, const char *y) const { return strcmp(x, y) == 0; }
|
|
};
|
|
|
|
//typedef HashMap<String, int> VariablesMap;
|
|
typedef HashMap<const char *, int, Common::Hash<const char *>, CharStar_EqualTo> VariablesMap;
|
|
typedef HashMap<const char *, String, Common::Hash<const char *>, CharStar_EqualTo> AliasesMap;
|
|
|
|
private:
|
|
void getToken();
|
|
void level2(int *);
|
|
void level3(int *);
|
|
void level4(int *);
|
|
void level5(int *);
|
|
void primitive(int *);
|
|
void arith(char op, int *r, int *h);
|
|
void unary(char op, int *r);
|
|
void exprError(int error);
|
|
int getVar_(const char *s, bool includeAliases = true);
|
|
int getBuiltinVar(const char *s);
|
|
void loadConstants();
|
|
|
|
char _input[256];
|
|
String _section;
|
|
String _name;
|
|
|
|
int _startpos;
|
|
|
|
int _tokenType;
|
|
int _pos;
|
|
|
|
char _token[256];
|
|
|
|
AliasesMap _aliases;
|
|
VariablesMap _vars;
|
|
};
|
|
|
|
} // end of namespace GUI
|
|
|
|
#endif
|