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/*
* LSPIPAT - LUA SPIPAT WRAPPER
* Copyright (C) 2010, Robin Haberkorn
* License: LGPL
*
* CORE: MISCELLANEOUS PRIMITIVES/CONSTRUCTORS
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "lspipat.h"
LUA_SIG(l_primitive_arbno)
{
int top = lua_gettop(L);
VString str = VSTRING_INITIALIZER;
PATTERN_WRAPPER *new;
luaL_argcheck(L, top == 1, top, L_NUMBER);
if (!(new = lua_newuserdata(L, sizeof(PATTERN_WRAPPER))))
L_ERROR(L_ALLOC);
memset(new, 0, sizeof(PATTERN_WRAPPER));
if (lua_isstring(L, 1)) {
str.ptr = lua_tolstring(L, 1, (size_t *)&str.len);
new->pattern = str.len == 1 ? spipat_arbno_chr(*str.ptr)
: spipat_arbno_str(str);
} else {
PATTERN_WRAPPER *wrapper = luaL_checkudata(L, 1, PATTERN_MT);
luaL_argcheck(L, wrapper->pattern, 1, L_FREED);
lua_insert(L, 1); /* move wrapper to bottom */
new->type = PATTERN_ONESUBPAT;
new->u.onesubpat.pattern = luaL_ref(L, LUA_REGISTRYINDEX);
/* wrapper at top again */
new->pattern = spipat_arbno(wrapper->pattern);
}
if (!new->pattern)
L_ERROR(L_ALLOC);
luaL_getmetatable(L, PATTERN_MT);
lua_setmetatable(L, -2);
return 1;
}
LUA_SIG(l_primitive_fence)
{
int top = lua_gettop(L);
PATTERN_WRAPPER *new;
luaL_argcheck(L, top < 2, top, L_NUMBER);
if (!(new = lua_newuserdata(L, sizeof(PATTERN_WRAPPER))))
L_ERROR(L_ALLOC);
memset(new, 0, sizeof(PATTERN_WRAPPER));
if (!top) {
new->pattern = spipat_fence_simple();
} else {
PATTERN_WRAPPER *wrapper = luaL_checkudata(L, 1, PATTERN_MT);
luaL_argcheck(L, wrapper->pattern, 1, L_FREED);
lua_insert(L, 1); /* move wrapper to bottom */
new->type = PATTERN_ONESUBPAT;
new->u.onesubpat.pattern = luaL_ref(L, LUA_REGISTRYINDEX);
/* wrapper at top again */
new->pattern = spipat_fence_function(wrapper->pattern);
}
if (!new->pattern)
L_ERROR(L_ALLOC);
luaL_getmetatable(L, PATTERN_MT);
lua_setmetatable(L, -2);
return 1;
}
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