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#ifndef __CLUA_H__
#define __CLUA_H__
#include "AppHdr.h"
#ifdef CLUA_BINDINGS
extern "C" {
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
}
#include <cstdio>
#include <cstdarg>
#include <string>
#include <set>
#include "libutil.h"
#include "externs.h"
class CLua
{
public:
CLua();
~CLua();
lua_State *state();
operator lua_State * ()
{
return state();
}
void save(const char *filename);
void setglobal(const char *name);
void getglobal(const char *name);
// Assigns the value on top of the stack to a unique name in the registry
// and returns the name.
std::string setuniqregistry();
void setregistry(const char *name);
void getregistry(const char *name);
int execstring(const char *str, const char *context = "init.txt");
int execfile(const char *filename);
bool callbooleanfn(bool defval, const char *fn, const char *params, ...);
bool callfn(const char *fn, int nargs, int nret = 1);
bool callfn(const char *fn, const char *params, ...);
void fnreturns(const char *params, ...);
bool runhook(const char *hook, const char *params, ...);
static int file_write(lua_State *ls);
std::string error;
private:
lua_State *_state;
typedef std::set<std::string> sfset;
sfset sourced_files;
unsigned long uniqindex;
void init_lua();
void set_error(int err, lua_State *ls = NULL);
void load_cmacro();
void load_chooks();
void vfnreturns(const char *par, va_list va);
bool proc_returns(const char *par) const;
bool calltopfn(lua_State *ls, const char *format, va_list args,
int retc = -1, va_list *fnr = NULL);
int push_args(lua_State *ls, const char *format, va_list args,
va_list *cpto = NULL);
int return_count(lua_State *ls, const char *format);
struct CLuaSave
{
const char *filename;
FILE *handle;
FILE *get_file();
};
};
class lua_text_pattern : public base_pattern
{
public:
lua_text_pattern(const std::string &pattern);
~lua_text_pattern();
bool valid() const;
bool matches(const std::string &s) const;
static bool is_lua_pattern(const std::string &s);
private:
bool translated;
bool isvalid;
std::string pattern;
std::string lua_fn_name;
static unsigned long lfndx;
bool translate() const;
void pre_pattern(std::string &pat, std::string &fn) const;
void post_pattern(std::string &pat, std::string &fn) const;
static std::string new_fn_name();
};
extern CLua clua;
void lua_set_exclusive_item(const item_def *item = NULL);
#endif // CLUA_BINDINGS
#endif
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