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/*************************************************************************
*
* HTCd - Copyright (C) 1998-2006 Henrik Rydberg
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef TOKENH
#define TOKENH
#include <ops/express.h>
#include <hdb/db.h>
#define TOK_ARGS (mstream& out,Env& env)
#define TOK_IMPL(func) static void impl_##func TOK_ARGS throw(merror_t)
#define TOK_ADD(func,a,mod,help) \
T.add(new binary_t(uscore2dot(#func),sref(help),mod,sref(a),impl_##func),0,1)
mstring uscore2dot(const char* s);
class Env;
typedef void (*s_func_t)TOK_ARGS;
class tok_t {
public:
static const unsigned CONSTANT,RESTRICT,NORMAL,SYSONLY,INIT;
static const unsigned RUNNABLE,FUNCTION,BINARY;
static const unsigned REFERENCE,DBREF,CRON;
static const unsigned PRIVATE,PUBLIC,XMODES;
static inline unsigned tight(unsigned xmod) {
// INIT is ignored here simply because no mode can
// read variables in INIT mode... defaults to public.
return (xmod&SYSONLY)?SYSONLY:(xmod&NORMAL)?PRIVATE:PUBLIC;
}
mstring name,body;
unsigned mod;
int is_clear(int xmod) const { return (mod&xmod)!=0; }
int is_replaceable(const tok_t& t) const { return (mod&t.mod)==t.mod; }
int is_const() const { return (mod&CONSTANT)!=0; }
int is_runnable() const { return (mod&RUNNABLE)!=0; }
int is_func() const { return (mod&FUNCTION)!=0; }
int is_cron() const { return (mod&CRON)!=0; }
int is_binary() const { return (mod&BINARY)!=0; }
int is_reference() const { return (mod&REFERENCE)!=0; }
int is_dbref() const { return (mod&DBREF)!=0; }
tok_t(const sref& s,const sref& b,unsigned m) : name(s),body(b),mod(m) {}
virtual ~tok_t();
static void* operator new(size_t n);
static void operator delete(void* p);
private:
static uniheap<32> tree;
};
///////////////////////////////////////////////////////////////////
class reference_t : public tok_t {
public:
mstring data;
reference_t(const sref& s,const sref& b,unsigned m):
tok_t(s,b,m|REFERENCE|CONSTANT) {}
static void* operator new(size_t n);
static void operator delete(void* p);
private:
static uniheap<44> tree;
};
///////////////////////////////////////////////////////////////////
class dbref_t : public tok_t {
public:
dbmap db;
dbref_t(const sref& s,const sref& b,unsigned m):
tok_t(s,b,m|DBREF|CONSTANT) {}
static void* operator new(size_t n);
static void operator delete(void* p);
private:
static uniheap<96> tree;
};
///////////////////////////////////////////////////////////////////
class runnable_t : public tok_t {
public:
mstring arg;
runnable_t(const sref& s,const sref& b,unsigned m,const sref& a):
tok_t(s,b,m|RUNNABLE|CONSTANT),arg(a) {}
static void* operator new(size_t n);
static void operator delete(void* p);
private:
static uniheap<44> tree;
};
///////////////////////////////////////////////////////////////////
class func_t : public runnable_t {
public:
expr_t x;
func_t(const sref& s,const sref& b,unsigned m,const sref& a):
runnable_t(s,b,m|FUNCTION,a) { x=body; }
static void* operator new(size_t n);
static void operator delete(void* p);
private:
static uniheap<80> tree;
};
///////////////////////////////////////////////////////////////////
class cron_t : public func_t {
public:
int last,interval;
cron_t(const sref& s,const sref& b,unsigned m,int i):
func_t(s,b,m|CRON,ms_empty),last(0),interval(i) {}
static void* operator new(size_t n);
static void operator delete(void* p);
private:
static uniheap<88> tree;
};
///////////////////////////////////////////////////////////////////
class binary_t : public runnable_t {
public:
s_func_t func;
binary_t(const sref& s,const sref& b,unsigned m,const sref& a,s_func_t f):
runnable_t(s,b,m|BINARY,a),func(f) {}
static void* operator new(size_t n);
static void operator delete(void* p);
private:
static uniheap<48> tree;
};
///////////////////////////////////////////////////////////////////
mstream& operator<<(mstream&,const runnable_t& ftok);
mstring Mode(const tok_t& tok);
mstring Desc(const tok_t& tok);
///////////////////////////////////////////////////////////////////
struct tokmap {
typedef tok_t* val_t;
typedef mrvec<val_t> map_t;
typedef map_t::iterator iterator;
typedef map_t::const_iterator const_iterator;
struct comp_t {
sref key;
comp_t(const sref& skey) : key(skey) {}
bool operator()(val_t a,val_t b) const {
return (a?((const sref&)a->name):key)<(b?((const sref&)b->name):key);
}
};
tokmap* up;
map_t list;
tokmap() : up(0),list() {}
tokmap(tokmap& p) : up(&p),list() {}
~tokmap() { clear(); }
iterator begin() { return list.begin(); }
const_iterator begin() const { return list.begin(); }
iterator end() { return list.end(); }
const_iterator end() const { return list.end(); }
void clear();
iterator erase(iterator p) { delete *p; return list.erase(p); }
tok_t* get_this(const sref& t);
const tok_t* get_this(const sref& t) const;
const tok_t* get(const sref& t) const;
tok_t* get(const sref& t);
tok_t* set(tok_t* tok,int replace,int force) throw(merror_t);
tok_t* add(tok_t* tok,int replace,int force) throw(merror_t);
};
///////////////////////////////////////////////////////////////////
int is_tokname(const sref& s);
int is_arglist(const sref& s);
tok_t* Cond(tokmap& map,const sref& s,const sref& b,unsigned m) throw(merror_t);
tok_t* Global(tokmap& map,const sref& s,const sref& b,unsigned m,int rpl=0) throw(merror_t);
tok_t* Const(tokmap& map,const sref& s,const sref& b,unsigned m,int rpl=0) throw(merror_t);
func_t* Func(tokmap& map,const sref& s,const sref& b,
unsigned m,const sref& a,int rpl=0) throw(merror_t);
cron_t* Cron(tokmap& map,const sref& s,const sref& b,
unsigned m,int i,int rpl=0) throw(merror_t);
binary_t* Binary(tokmap& map,const sref& s,const sref& b,
unsigned m,const sref& a,s_func_t f,int rpl=0) throw(merror_t);
reference_t* Reference(tokmap& map,const sref& s,const sref& b,
unsigned m,int rpl=0) throw(merror_t);
dbref_t* DBRef(tokmap& map,const sref& s,
const sref& b,unsigned m,int rpl=0) throw(merror_t);
void ClearToken(tokmap& map,const sref& s) throw(merror_t);
///////////////////////////////////////////////////////////////////
const int XPUBLIC=tok_t::RESTRICT;
const int XPRIVATE=XPUBLIC|tok_t::NORMAL;
const int XSYSTEM=XPRIVATE|tok_t::SYSONLY;
const int XINIT=tok_t::INIT;
#endif
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