Dario Sassi
9d7e968fb7
- migliorie e correzioni a funzioni inline per accedere a variabili globali strutturate lua.
668 lines
19 KiB
C++
668 lines
19 KiB
C++
//----------------------------------------------------------------------------
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// EgalTech 2015-2020
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//----------------------------------------------------------------------------
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// File : EGnLuaAux.h Data : 30.07.20 Versione : 2.2g1
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// Contenuto : Funzioni per gestione parametri generali con LUA.
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//
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//
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//
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// Modifiche : 21.03.15 DS Creazione modulo.
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// 30.07.20 DS Corretta LuaChangeNameGlobVar (mancava pop se non c'è var).
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include "/EgtDev/Include/EGnStringUtils.h"
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#include "/EgtDev/Include/EgtNumCollection.h"
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#include "/EgtDev/Extern/Lua/Include/lua.hpp"
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//----------------------------------------------------------------------------
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#define LuaCheckParam(L,I,P) { if ( ! LuaGetParam(L,I,P)) \
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return luaL_error( L, " Invalid Parameter # " #I) ;}
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#define LuaCheckTabFieldParam(L,I,F,P) { if ( ! LuaGetTabFieldParam(L,I,F,P))\
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return luaL_error( L, " Invalid Parameter # " #I " (field %s)",\
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std::string( F).c_str()) ; }
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//----------------------------------------------------------------------------
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inline bool
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LuaClearStack( lua_State* L)
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{
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int n = lua_gettop( L) ;
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if ( n > 0)
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lua_pop( L, n) ;
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaGetParam( lua_State* L, int nInd, bool& bPar)
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{
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if ( ! lua_isboolean( L, nInd))
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return false ;
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bPar = ( lua_toboolean( L, nInd) != 0) ;
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaGetParam( lua_State* L, int nInd, int& nPar)
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{
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if ( ! lua_isnumber( L, nInd))
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return false ;
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double dVal = lua_tonumber( L, nInd) ;
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nPar = int( dVal + (( dVal > 0) ? 0.5 : - 0.5)) ;
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaGetParam( lua_State* L, int nInd, double& dPar)
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{
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if ( ! lua_isnumber( L, nInd))
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return false ;
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dPar = lua_tonumber( L, nInd) ;
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaGetParam( lua_State* L, int nInd, std::string& sPar)
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{
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if ( ! lua_isstring( L, nInd))
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return false ;
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sPar = lua_tostring( L, nInd) ;
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return true ;
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}
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//----------------------------------------------------------------------------
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template <size_t size>
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bool
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LuaGetParam( lua_State* L, int nInd, int (&nVal)[size])
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{
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if ( ! lua_istable( L, nInd))
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return false ;
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for ( int i = 1 ; i <= size ; ++ i) {
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lua_rawgeti( L, nInd, i) ;
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if ( ! lua_isnumber( L, -1)) {
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lua_pop( L, 1) ;
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return false ;
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}
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double dVal = lua_tonumber( L, -1) ;
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nVal[i-1] = int( dVal + (( dVal > 0) ? 0.5 : - 0.5)) ;
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lua_pop( L, 1) ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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template <size_t size>
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bool
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LuaGetParam( lua_State* L, int nInd, double (&dVal)[size])
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{
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if ( ! lua_istable( L, nInd))
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return false ;
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for ( int i = 1 ; i <= size ; ++ i) {
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lua_rawgeti( L, nInd, i) ;
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if ( ! lua_isnumber( L, -1)) {
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lua_pop( L, 1) ;
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return false ;
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}
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dVal[i-1] = lua_tonumber( L, -1) ;
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lua_pop( L, 1) ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaGetParam( lua_State* L, int nInd, INTVECTOR& vPar)
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{
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vPar.clear() ;
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if ( lua_isnumber( L, nInd)) {
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int nVal = int( lua_tointeger( L, nInd)) ;
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vPar.push_back( nVal) ;
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return true ;
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}
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else if ( lua_istable( L, nInd)) {
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// lunghezza della tavola
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lua_len( L, nInd) ;
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if ( ! lua_isnumber( L, -1)) {
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lua_pop( L, 1) ;
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return false ;
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}
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int nLen = int( lua_tointeger( L, -1)) ;
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lua_pop( L, 1) ;
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vPar.reserve( nLen) ;
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for ( int i = 1 ; i <= nLen ; ++ i) {
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lua_rawgeti( L, nInd, i) ;
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if ( ! lua_isnumber( L, -1)) {
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lua_pop( L, 1) ;
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return false ;
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}
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int nVal = int( lua_tointeger( L, -1)) ;
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vPar.push_back( nVal) ;
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lua_pop( L, 1) ;
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}
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return true ;
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}
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else
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return false ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaGetParam( lua_State* L, int nInd, DBLVECTOR& vPar)
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{
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vPar.clear() ;
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if ( lua_isnumber( L, nInd)) {
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double dVal = lua_tonumber( L, nInd) ;
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vPar.push_back( dVal) ;
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return true ;
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}
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else if ( lua_istable( L, nInd)) {
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// lunghezza della tavola
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lua_len( L, nInd) ;
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if ( ! lua_isnumber( L, -1)) {
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lua_pop( L, 1) ;
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return false ;
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}
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int nLen = int( lua_tointeger( L, -1)) ;
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lua_pop( L, 1) ;
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vPar.reserve( nLen) ;
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for ( int i = 1 ; i <= nLen ; ++ i) {
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lua_rawgeti( L, nInd, i) ;
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if ( ! lua_isnumber( L, -1)) {
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lua_pop( L, 1) ;
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return false ;
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}
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double dVal = lua_tonumber( L, -1) ;
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vPar.push_back( dVal) ;
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lua_pop( L, 1) ;
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}
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return true ;
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}
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else
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return false ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaGetParam( lua_State* L, int nInd, STRVECTOR& vPar)
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{
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vPar.clear() ;
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if ( lua_isstring( L, nInd)) {
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std::string sVal = lua_tostring( L, nInd) ;
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vPar.emplace_back( sVal) ;
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return true ;
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}
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else if ( lua_istable( L, nInd)) {
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// lunghezza della tavola
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lua_len( L, nInd) ;
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if ( ! lua_isnumber( L, -1)) {
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lua_pop( L, 1) ;
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return false ;
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}
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int nLen = int( lua_tointeger( L, -1)) ;
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lua_pop( L, 1) ;
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vPar.reserve( nLen) ;
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for ( int i = 1 ; i <= nLen ; ++ i) {
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lua_rawgeti( L, nInd, i) ;
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if ( ! lua_isstring( L, -1)) {
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lua_pop( L, 1) ;
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return false ;
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}
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std::string sVal = lua_tostring( L, -1) ;
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vPar.emplace_back( sVal) ;
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lua_pop( L, 1) ;
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}
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return true ;
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}
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else
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return false ;
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}
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//----------------------------------------------------------------------------
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template <class T>
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bool
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LuaGetTabFieldParam( lua_State* L, int nInd, const char* szField, T& Val)
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{
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if ( ! lua_istable( L, nInd))
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return false ;
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int nField ;
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if ( FromString( szField, nField))
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lua_rawgeti( L, nInd, nField) ;
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else
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lua_getfield( L, nInd, szField) ;
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bool bOk = LuaGetParam( L, -1, Val) ;
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lua_pop( L, 1) ;
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return bOk ;
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}
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//----------------------------------------------------------------------------
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template <class T>
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bool
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LuaGetTabFieldParam( lua_State* L, int nInd, const std::string& sField, T& Val)
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{
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return LuaGetTabFieldParam( L, nInd, sField.c_str(), Val) ;
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}
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//----------------------------------------------------------------------------
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L)
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{
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try {
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lua_pushnil( L) ;
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}
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catch ( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, bool bPar)
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{
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try {
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lua_pushboolean( L, ( bPar ? 1 : 0)) ;
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}
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catch ( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, int nPar)
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{
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try {
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lua_pushinteger( L, nPar) ;
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}
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catch ( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, double dPar)
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{
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try {
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lua_pushnumber( L, dPar) ;
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}
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catch ( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, const char* szPar)
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{
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try {
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lua_pushstring( L, szPar) ;
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}
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catch ( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, const std::string& sPar)
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{
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try {
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lua_pushstring( L, sPar.c_str()) ;
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}
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catch ( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, const BOOLVECTOR& vPar)
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{
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try {
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int nSize = int( vPar.size()) ;
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lua_createtable( L, nSize, 0) ;
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for ( int i = 1 ; i <= nSize ; ++ i) {
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lua_pushboolean( L, ( vPar[i-1] ? 1 : 0)) ;
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lua_rawseti( L, -2, i) ;
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}
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}
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catch( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, const INTVECTOR& vPar)
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{
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try {
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int nSize = int( vPar.size()) ;
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lua_createtable( L, nSize, 0) ;
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for ( int i = 1 ; i <= nSize ; ++ i) {
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lua_pushinteger( L, vPar[i-1]) ;
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lua_rawseti( L, -2, i) ;
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}
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}
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catch( ...) {
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return false ;
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}
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return true ;
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}
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//-------------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, const INTMATRIX& vPar)
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{
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try {
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// recupero prima dimensione
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int nDim1 = int( vPar.size()) ;
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// creo tavola principale
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lua_createtable( L, nDim1, 0) ;
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// creo e inserisco tavola per ogni componente
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for ( int i = 1 ; i <= nDim1 ; ++ i) {
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// recupero seconda dimensione
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int nDim2 = int( vPar[i-1].size()) ;
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// creo tavola componente
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lua_createtable( L, nDim2, 0) ;
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for ( int j = 1 ; j <= nDim2 ; ++ j) {
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lua_pushinteger( L, vPar[i-1][j-1]) ;
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lua_rawseti( L, -2, j) ;
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}
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// la metto nel vettore
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lua_rawseti( L, -2, i) ;
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}
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}
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catch( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, const DBLVECTOR& vPar)
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{
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try {
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int nSize = int( vPar.size()) ;
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lua_createtable( L, nSize, 0) ;
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for ( int i = 1 ; i <= nSize ; ++ i) {
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lua_pushnumber( L, vPar[i-1]) ;
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lua_rawseti( L, -2, i) ;
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}
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}
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catch( ...) {
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return false ;
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}
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return true ;
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}
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//-------------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, const DBLMATRIX& vPar)
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{
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try {
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// recupero prima dimensione
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int nDim1 = int( vPar.size()) ;
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// creo tavola principale
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lua_createtable( L, nDim1, 0) ;
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// creo e inserisco tavola per ogni componente
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for ( int i = 1 ; i <= nDim1 ; ++ i) {
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// recupero seconda dimensione
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int nDim2 = int( vPar[i-1].size()) ;
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// creo tavola componente
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lua_createtable( L, nDim2, 0) ;
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for ( int j = 1 ; j <= nDim2 ; ++ j) {
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lua_pushnumber( L, vPar[i-1][j-1]) ;
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lua_rawseti( L, -2, j) ;
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}
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// la metto nel vettore
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lua_rawseti( L, -2, i) ;
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}
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}
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catch( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetParam( lua_State* L, const STRVECTOR& vPar)
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{
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try {
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int nSize = int( vPar.size()) ;
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lua_createtable( L, nSize, 0) ;
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for ( int i = 1 ; i <= nSize ; ++ i) {
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lua_pushstring( L, vPar[i-1].c_str()) ;
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lua_rawseti( L, -2, i) ;
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}
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}
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catch( ...) {
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return false ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetTabFieldParam( lua_State* L, int nInd, const char* szField)
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{
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if ( ! lua_istable( L, nInd))
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return false ;
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if ( ! LuaSetParam( L))
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return false ;
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int nPos = ( nInd > 0 ? nInd : nInd - 1) ;
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int nField ;
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if ( FromString( szField, nField))
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lua_rawseti( L, nPos, nField) ;
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else
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lua_setfield( L, nPos, szField) ;
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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LuaSetTabFieldParam( lua_State* L, int nInd, const std::string& sField)
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{
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return LuaSetTabFieldParam( L, nInd, sField.c_str()) ;
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}
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//----------------------------------------------------------------------------
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template <class T>
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bool
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LuaSetTabFieldParam( lua_State* L, int nInd, const char* szField, const T& Val)
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{
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if ( ! lua_istable( L, nInd))
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return false ;
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if ( ! LuaSetParam( L, Val))
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return false ;
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int nPos = ( nInd > 0 ? nInd : nInd - 1) ;
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int nField ;
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if ( FromString( szField, nField))
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lua_rawseti( L, nPos, nField) ;
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else
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lua_setfield( L, nPos, szField) ;
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return true ;
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}
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//----------------------------------------------------------------------------
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template <class T>
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bool
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LuaSetTabFieldParam( lua_State* L, int nInd, const std::string& sField, const T& Val)
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{
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return LuaSetTabFieldParam( L, nInd, sField.c_str(), Val) ;
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}
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//----------------------------------------------------------------------------
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//----------------------------------------------------------------------------
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template <class T>
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bool
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LuaGetGlobVar( lua_State* L, const std::string& sVar, T& Val)
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{
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// se variabile standard
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if ( sVar.find( '.') == std::string::npos) {
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lua_getglobal( L, sVar.c_str()) ;
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bool bOk = LuaGetParam( L, -1, Val) ;
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lua_pop( L, 1) ;
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return bOk ;
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}
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// altrimenti campo di tabella
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else {
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STRVECTOR vsTokens ;
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Tokenize( sVar, ".", vsTokens) ;
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int nTokenCnt = int( vsTokens.size()) ;
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if ( nTokenCnt < 2)
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return false ;
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if ( lua_getglobal( L, vsTokens[0].c_str()) != LUA_TTABLE) {
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lua_pop( L, 1) ;
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return false ;
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}
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for ( int nInd = 1 ; nInd <= nTokenCnt - 2 ; ++ nInd) {
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bool bOk ;
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int nField ;
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if ( FromString( vsTokens[nInd], nField))
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bOk = ( lua_rawgeti( L, -1, nField) == LUA_TTABLE) ;
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else
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bOk = ( lua_getfield( L, -1, vsTokens[nInd].c_str()) == LUA_TTABLE) ;
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if ( ! bOk) {
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lua_pop( L, nInd + 1) ;
|
|
return false ;
|
|
}
|
|
}
|
|
bool bOk = LuaGetTabFieldParam( L, -1, vsTokens[nTokenCnt-1].c_str(), Val) ;
|
|
lua_pop( L, nTokenCnt - 1) ;
|
|
return bOk ;
|
|
}
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------------
|
|
//----------------------------------------------------------------------------
|
|
template <class T>
|
|
bool
|
|
LuaSetGlobVar( lua_State* L, const std::string& sVar, const T& Val)
|
|
{
|
|
// se variabile standard
|
|
if ( sVar.find( '.') == std::string::npos) {
|
|
if ( ! LuaSetParam( L, Val))
|
|
return false ;
|
|
lua_setglobal( L, sVar.c_str()) ;
|
|
return true ;
|
|
}
|
|
// altrimenti campo di tabella
|
|
else {
|
|
STRVECTOR vsTokens ;
|
|
Tokenize( sVar, ".", vsTokens) ;
|
|
int nTokenCnt = int( vsTokens.size()) ;
|
|
if ( nTokenCnt < 2)
|
|
return false ;
|
|
if ( lua_getglobal( L, vsTokens[0].c_str()) != LUA_TTABLE) {
|
|
lua_pop( L, 1) ;
|
|
return false ;
|
|
}
|
|
for ( int nInd = 1 ; nInd <= nTokenCnt - 2 ; ++ nInd) {
|
|
int nField ;
|
|
bool bNumber = FromString( vsTokens[nInd], nField) ;
|
|
if ( ( bNumber ? lua_rawgeti( L, -1, nField) : lua_getfield( L, -1, vsTokens[nInd].c_str())) != LUA_TTABLE) {
|
|
lua_pop( L, 1) ;
|
|
lua_newtable( L) ;
|
|
lua_pushvalue( L, -1) ;
|
|
if ( bNumber)
|
|
lua_rawseti( L, -3, nField) ;
|
|
else
|
|
lua_setfield( L, -3, vsTokens[nInd].c_str()) ;
|
|
}
|
|
}
|
|
bool bOk = LuaSetTabFieldParam( L, -1, vsTokens[nTokenCnt-1].c_str(), Val) ;
|
|
lua_pop( L, nTokenCnt - 1) ;
|
|
return bOk ;
|
|
}
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------------
|
|
//----------------------------------------------------------------------------
|
|
inline bool
|
|
LuaResetGlobVar( lua_State* L, const std::string& sVar)
|
|
{
|
|
// se variabile standard
|
|
if ( sVar.find( '.') == std::string::npos) {
|
|
if ( ! LuaSetParam( L))
|
|
return false ;
|
|
lua_setglobal( L, sVar.c_str()) ;
|
|
return true ;
|
|
}
|
|
// altrimenti campo di tabella
|
|
else {
|
|
STRVECTOR vsTokens ;
|
|
Tokenize( sVar, ".", vsTokens) ;
|
|
int nTokenCnt = int( vsTokens.size()) ;
|
|
if ( nTokenCnt < 2)
|
|
return false ;
|
|
if ( lua_getglobal( L, vsTokens[0].c_str()) != LUA_TTABLE) {
|
|
lua_pop( L, 1) ;
|
|
return false ;
|
|
}
|
|
for ( int nInd = 1 ; nInd <= nTokenCnt - 2 ; ++ nInd) {
|
|
int nField ;
|
|
bool bNumber = FromString( vsTokens[nInd], nField) ;
|
|
if ( ( bNumber ? lua_rawgeti( L, -1, nField) : lua_getfield( L, -1, vsTokens[nInd].c_str())) != LUA_TTABLE) {
|
|
lua_pop( L, 1) ;
|
|
lua_newtable( L) ;
|
|
lua_pushvalue( L, -1) ;
|
|
if ( bNumber)
|
|
lua_rawseti( L, -3, nField) ;
|
|
else
|
|
lua_setfield( L, -3, vsTokens[nInd].c_str()) ;
|
|
}
|
|
}
|
|
bool bOk = LuaSetTabFieldParam( L, -1, vsTokens[nTokenCnt-1].c_str()) ;
|
|
lua_pop( L, 1) ;
|
|
return bOk ;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
//----------------------------------------------------------------------------
|
|
inline bool
|
|
LuaChangeNameGlobVar( lua_State* L, const std::string& sOldVar, const std::string& sNewVar)
|
|
{
|
|
int nType = lua_getglobal( L, sOldVar.c_str()) ;
|
|
if ( nType == LUA_TNONE || nType == LUA_TNIL) {
|
|
lua_pop( L, 1) ;
|
|
return false ;
|
|
}
|
|
lua_setglobal( L, sNewVar.c_str()) ;
|
|
return true ;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
//----------------------------------------------------------------------------
|
|
inline bool
|
|
LuaCreateGlobTable( lua_State* L, const std::string& sVar)
|
|
{
|
|
try {
|
|
lua_newtable( L) ;
|
|
lua_setglobal( L, sVar.c_str()) ;
|
|
}
|
|
catch(...) {
|
|
return false ;
|
|
}
|
|
return true ;
|
|
}
|