1 | // Copyright (C) 2012-2014 ChaosForge Ltd
|
---|
2 | // http://chaosforge.org/
|
---|
3 | //
|
---|
4 | // This file is part of NV Libraries.
|
---|
5 | // For conditions of distribution and use, see copyright notice in nv.hh
|
---|
6 |
|
---|
7 | #include "nv/lua/lua_raw.hh"
|
---|
8 |
|
---|
9 | #include "nv/stl/string.hh"
|
---|
10 |
|
---|
11 | std::string nlua_typecontent( lua_State* L, int idx )
|
---|
12 | {
|
---|
13 | int type = lua_type( L, idx );
|
---|
14 | switch ( type )
|
---|
15 | {
|
---|
16 | case LUA_TNONE : return "NONE";
|
---|
17 | case LUA_TNIL : return "NIL";
|
---|
18 | case LUA_TBOOLEAN : return lua_toboolean( L, idx ) == 0 ? "false" : "true";
|
---|
19 | //case LUA_TLIGHTUSERDATA : return std::to_string( nv::uint64( lua_touserdata( L, idx ) ) );
|
---|
20 | //case LUA_TNUMBER : return std::to_string( lua_tonumber( L, idx ) );
|
---|
21 | case LUA_TSTRING : return lua_tostring( L, idx );
|
---|
22 | case LUA_TTABLE : return "TABLE";
|
---|
23 | case LUA_TFUNCTION : return "FUNCTION";
|
---|
24 | // case LUA_TUSERDATA : return std::to_string( nv::uint64( lua_touserdata( L, idx ) ) );
|
---|
25 | case LUA_TTHREAD : return "THREAD";
|
---|
26 | default : break;
|
---|
27 | }
|
---|
28 | char buffer[64];
|
---|
29 | if ( type == LUA_TLIGHTUSERDATA || type == LUA_TUSERDATA )
|
---|
30 | {
|
---|
31 | size_t l = nv::uint64_to_buffer( nv::uint64( lua_touserdata( L, idx ) ), buffer );
|
---|
32 | return std::string( buffer, l );
|
---|
33 | }
|
---|
34 | else if ( type == LUA_TNUMBER )
|
---|
35 | {
|
---|
36 | size_t l = nv::f64_to_buffer( lua_tonumber( L, idx ), buffer );
|
---|
37 | return std::string( buffer, l );
|
---|
38 | }
|
---|
39 | return "UNKNOWN!";
|
---|
40 | }
|
---|
41 |
|
---|
42 | void nlua_pushreversed( lua_State *L, int index )
|
---|
43 | {
|
---|
44 | index = lua_absindex( L, index );
|
---|
45 | int len = static_cast<int>( lua_rawlen( L, index ) );
|
---|
46 | int i = len;
|
---|
47 | lua_createtable( L, len, 0 );
|
---|
48 | while ( i != 0 )
|
---|
49 | {
|
---|
50 | lua_rawgeti( L, index, i );
|
---|
51 | lua_rawseti( L, -2, len-i+1 );
|
---|
52 | i--;
|
---|
53 | }
|
---|
54 | }
|
---|
55 |
|
---|
56 |
|
---|
57 | void nlua_shallowcopy( lua_State *L, int index )
|
---|
58 | {
|
---|
59 | index = lua_absindex( L, index );
|
---|
60 | lua_createtable( L, 0, 0 );
|
---|
61 | lua_pushnil( L );
|
---|
62 |
|
---|
63 | while ( lua_next( L, index ) != 0 )
|
---|
64 | {
|
---|
65 | lua_pushvalue( L, -2 );
|
---|
66 | lua_insert( L, -2 );
|
---|
67 | lua_settable( L, -4 );
|
---|
68 | }
|
---|
69 | }
|
---|
70 |
|
---|
71 | void nlua_shallowicopy( lua_State *L, int index )
|
---|
72 | {
|
---|
73 | index = lua_absindex( L, index );
|
---|
74 | lua_createtable( L, 0, 0 );
|
---|
75 | int i = 0;
|
---|
76 | for(;;)
|
---|
77 | {
|
---|
78 | i++;
|
---|
79 | lua_rawgeti( L, 1, i );
|
---|
80 | if ( lua_isnil( L, -1 ) )
|
---|
81 | {
|
---|
82 | lua_pop( L, 1 );
|
---|
83 | break;
|
---|
84 | }
|
---|
85 | lua_rawseti( L, 2, i );
|
---|
86 | };
|
---|
87 | }
|
---|
88 |
|
---|
89 | void nlua_shallowmerge( lua_State *L, int index )
|
---|
90 | {
|
---|
91 | index = lua_absindex( L, index );
|
---|
92 | lua_pushnil( L );
|
---|
93 |
|
---|
94 | while( lua_next( L, index ) != 0 )
|
---|
95 | {
|
---|
96 | lua_pushvalue( L, -2 );
|
---|
97 | lua_insert( L, -2 );
|
---|
98 | lua_rawset( L, -4 );
|
---|
99 | }
|
---|
100 | }
|
---|
101 |
|
---|
102 | void nlua_deepcopy( lua_State *L, int index )
|
---|
103 | {
|
---|
104 | index = lua_absindex( L, index );
|
---|
105 | lua_createtable( L, 0, 0 );
|
---|
106 | lua_pushnil( L );
|
---|
107 |
|
---|
108 | while ( lua_next( L, index ) != 0 )
|
---|
109 | {
|
---|
110 | if ( lua_istable( L, -1 ) )
|
---|
111 | {
|
---|
112 | nlua_deepcopy( L, -1 );
|
---|
113 | lua_insert( L, -2 );
|
---|
114 | lua_pop( L, 1 );
|
---|
115 | }
|
---|
116 | lua_pushvalue( L, -2 );
|
---|
117 | lua_insert( L, -2 );
|
---|
118 | lua_settable( L, -4 );
|
---|
119 | }
|
---|
120 | }
|
---|
121 |
|
---|
122 | void nlua_toset( lua_State *L, int index )
|
---|
123 | {
|
---|
124 | index = lua_absindex( L, index );
|
---|
125 | lua_createtable( L, 0, 0 );
|
---|
126 | int i = 0;
|
---|
127 | for(;;)
|
---|
128 | {
|
---|
129 | i++;
|
---|
130 | lua_rawgeti( L, index, i );
|
---|
131 | if ( lua_isnil( L, -1 ) )
|
---|
132 | {
|
---|
133 | lua_pop( L, 1 );
|
---|
134 | break;
|
---|
135 | }
|
---|
136 | lua_pushboolean( L, true );
|
---|
137 | lua_rawset( L, -3 );
|
---|
138 | };
|
---|
139 | }
|
---|
140 |
|
---|
141 | void nlua_tokeyset( lua_State *L, int index )
|
---|
142 | {
|
---|
143 | index = lua_absindex( L, index );
|
---|
144 | lua_createtable( L, 0, 0 );
|
---|
145 | lua_pushnil( L );
|
---|
146 | while ( lua_next( L, index ) != 0 )
|
---|
147 | {
|
---|
148 | lua_pushvalue( L, -2 );
|
---|
149 | lua_pushboolean( L, true );
|
---|
150 | lua_settable( L, -5 );
|
---|
151 | lua_pop( L, 1 );
|
---|
152 | }
|
---|
153 | }
|
---|
154 |
|
---|
155 | void nlua_register( lua_State *L, const char* fname, lua_CFunction func, int index )
|
---|
156 | {
|
---|
157 | index = lua_absindex( L, index );
|
---|
158 | lua_pushstring( L, fname );
|
---|
159 | lua_pushcfunction( L, func );
|
---|
160 | lua_rawset( L, index );
|
---|
161 | }
|
---|
162 |
|
---|
163 | void nlua_register( lua_State *L, const luaL_Reg *l, int index )
|
---|
164 | {
|
---|
165 | index = lua_absindex( L, index );
|
---|
166 | for (; l->name != NULL; l++)
|
---|
167 | {
|
---|
168 | lua_pushstring( L, l->name );
|
---|
169 | lua_pushcfunction( L, l->func );
|
---|
170 | lua_rawset( L, index );
|
---|
171 | }
|
---|
172 | }
|
---|
173 |
|
---|
174 | void nlua_register( lua_State *L, const char* lname, const char* fname, lua_CFunction func )
|
---|
175 | {
|
---|
176 | lua_getglobal( L, lname );
|
---|
177 | if ( !lua_istable( L, -1 ) )
|
---|
178 | {
|
---|
179 | lua_pop( L, 1 );
|
---|
180 | lua_createtable( L, 0, 0 );
|
---|
181 | nlua_register( L, fname, func, -1 );
|
---|
182 | lua_setglobal( L, lname );
|
---|
183 | return;
|
---|
184 | }
|
---|
185 | nlua_register( L, fname, func, -1 );
|
---|
186 | lua_pop( L, 1 );
|
---|
187 | }
|
---|
188 |
|
---|
189 | void nlua_register( lua_State *L, const char* lname, const luaL_Reg *l )
|
---|
190 | {
|
---|
191 | lua_getglobal( L, lname );
|
---|
192 | if ( !lua_istable( L, -1 ) )
|
---|
193 | {
|
---|
194 | lua_pop( L, 1 );
|
---|
195 | lua_createtable( L, 0, 0 );
|
---|
196 | nlua_register( L, l, -1 );
|
---|
197 | lua_setglobal( L, lname );
|
---|
198 | return;
|
---|
199 | }
|
---|
200 | nlua_register( L, l, -1 );
|
---|
201 | lua_pop( L, 1 );
|
---|
202 | }
|
---|
203 |
|
---|
204 | void nlua_toflags( lua_State *L, int index, nv::uint8* data, nv::uint32 count )
|
---|
205 | {
|
---|
206 | index = lua_absindex( L, index );
|
---|
207 | nv::uint32 flag;
|
---|
208 | if ( lua_istable( L, index ) )
|
---|
209 | {
|
---|
210 | lua_pushnil( L );
|
---|
211 | while ( lua_next( L, index ) != 0 )
|
---|
212 | {
|
---|
213 | if ( lua_type( L, -1 ) == LUA_TBOOLEAN )
|
---|
214 | flag = static_cast< nv::uint32 >( lua_tointeger( L ,-2 ) );
|
---|
215 | else
|
---|
216 | flag = static_cast< nv::uint32 >( lua_tointeger( L ,-1 ) );
|
---|
217 | lua_pop( L, 1 );
|
---|
218 | if ( flag < count )
|
---|
219 | {
|
---|
220 | data[ flag / 8 ] |= ( 1 << static_cast< nv::uint8 >( flag % 8 ) );
|
---|
221 | }
|
---|
222 | }
|
---|
223 | }
|
---|
224 | }
|
---|
225 |
|
---|
226 | void nlua_toflags_set( lua_State *L, int index, nv::uint8* data, nv::uint32 count )
|
---|
227 | {
|
---|
228 | index = lua_absindex( L, index );
|
---|
229 | nv::uint32 flag;
|
---|
230 | if ( lua_istable( L, index ) )
|
---|
231 | {
|
---|
232 | lua_pushnil( L );
|
---|
233 | while ( lua_next( L, index ) != 0 )
|
---|
234 | {
|
---|
235 | flag = static_cast< nv::uint32 >( lua_tointeger( L ,-2 ) );
|
---|
236 | lua_pop( L, 1 );
|
---|
237 | if ( flag < count )
|
---|
238 | {
|
---|
239 | data[ flag / 8 ] |= ( 1 << static_cast< nv::uint8 >( flag % 8 ) );
|
---|
240 | }
|
---|
241 | }
|
---|
242 | }
|
---|
243 | }
|
---|
244 |
|
---|
245 | void nlua_toflags_array( lua_State *L, int index, nv::uint8* data, nv::uint32 count )
|
---|
246 | {
|
---|
247 | index = lua_absindex( L, index );
|
---|
248 | nv::uint32 flag;
|
---|
249 | if ( lua_istable( L, index ) )
|
---|
250 | {
|
---|
251 | lua_pushnil( L );
|
---|
252 | while ( lua_next( L, index ) != 0 )
|
---|
253 | {
|
---|
254 | flag = static_cast< nv::uint32 >( lua_tointeger( L ,-1 ) );
|
---|
255 | lua_pop( L, 1 );
|
---|
256 | if ( flag < count )
|
---|
257 | {
|
---|
258 | data[ flag / 8 ] |= ( 1 << static_cast< nv::uint8 >( flag % 8 ) );
|
---|
259 | }
|
---|
260 | }
|
---|
261 | }
|
---|
262 | }
|
---|
263 |
|
---|
264 | std::vector<nv::uint8> nlua_tobytearray( lua_State *L, int index )
|
---|
265 | {
|
---|
266 | index = lua_absindex( L, index );
|
---|
267 | std::vector<nv::uint8> result;
|
---|
268 | if ( lua_istable( L, index ) )
|
---|
269 | {
|
---|
270 | lua_pushnil( L );
|
---|
271 | while ( lua_next( L, index ) != 0 )
|
---|
272 | {
|
---|
273 | result.push_back( (nv::uint8) lua_tointeger( L, -1 ) );
|
---|
274 | lua_pop( L, 1 );
|
---|
275 | }
|
---|
276 | }
|
---|
277 | return result;
|
---|
278 | }
|
---|