1 files changed, 114 insertions, 0 deletions
diff --git a/lib/LuaBridge/Tests/Lua/Lua.5.2.0/src/lstring.c b/lib/LuaBridge/Tests/Lua/Lua.5.2.0/src/lstring.c
new file mode 100644
index 0000000..adec415
--- /dev/null
+++ b/lib/LuaBridge/Tests/Lua/Lua.5.2.0/src/lstring.c
@@ -0,0 +1,114 @@
+/*
+** $Id: lstring.c,v 2.19 2011/05/03 16:01:57 roberto Exp $
+** String table (keeps all strings handled by Lua)
+** See Copyright Notice in lua.h
+*/
+
+
+#include <string.h>
+
+#define lstring_c
+#define LUA_CORE
+
+#include "lua.h"
+
+#include "lmem.h"
+#include "lobject.h"
+#include "lstate.h"
+#include "lstring.h"
+
+
+
+void luaS_resize (lua_State *L, int newsize) {
+  int i;
+  stringtable *tb = &G(L)->strt;
+  /* cannot resize while GC is traversing strings */
+  luaC_runtilstate(L, ~bitmask(GCSsweepstring));
+  if (newsize > tb->size) {
+    luaM_reallocvector(L, tb->hash, tb->size, newsize, GCObject *);
+    for (i = tb->size; i < newsize; i++) tb->hash[i] = NULL;
+  }
+  /* rehash */
+  for (i=0; i<tb->size; i++) {
+    GCObject *p = tb->hash[i];
+    tb->hash[i] = NULL;
+    while (p) {  /* for each node in the list */
+      GCObject *next = gch(p)->next;  /* save next */
+      unsigned int h = lmod(gco2ts(p)->hash, newsize);  /* new position */
+      gch(p)->next = tb->hash[h];  /* chain it */
+      tb->hash[h] = p;
+      resetoldbit(p);  /* see MOVE OLD rule */
+      p = next;
+    }
+  }
+  if (newsize < tb->size) {
+    /* shrinking slice must be empty */
+    lua_assert(tb->hash[newsize] == NULL && tb->hash[tb->size - 1] == NULL);
+    luaM_reallocvector(L, tb->hash, tb->size, newsize, GCObject *);
+  }
+  tb->size = newsize;
+}
+
+
+static TString *newlstr (lua_State *L, const char *str, size_t l,
+                                       unsigned int h) {
+  size_t totalsize;  /* total size of TString object */
+  GCObject **list;  /* (pointer to) list where it will be inserted */
+  TString *ts;
+  stringtable *tb = &G(L)->strt;
+  if (l+1 > (MAX_SIZET - sizeof(TString))/sizeof(char))
+    luaM_toobig(L);
+  if (tb->nuse >= cast(lu_int32, tb->size) && tb->size <= MAX_INT/2)
+    luaS_resize(L, tb->size*2);  /* too crowded */
+  totalsize = sizeof(TString) + ((l + 1) * sizeof(char));
+  list = &tb->hash[lmod(h, tb->size)];
+  ts = &luaC_newobj(L, LUA_TSTRING, totalsize, list, 0)->ts;
+  ts->tsv.len = l;
+  ts->tsv.hash = h;
+  ts->tsv.reserved = 0;
+  memcpy(ts+1, str, l*sizeof(char));
+  ((char *)(ts+1))[l] = '\0';  /* ending 0 */
+  tb->nuse++;
+  return ts;
+}
+
+
+TString *luaS_newlstr (lua_State *L, const char *str, size_t l) {
+  GCObject *o;
+  unsigned int h = cast(unsigned int, l);  /* seed */
+  size_t step = (l>>5)+1;  /* if string is too long, don't hash all its chars */
+  size_t l1;
+  for (l1=l; l1>=step; l1-=step)  /* compute hash */
+    h = h ^ ((h<<5)+(h>>2)+cast(unsigned char, str[l1-1]));
+  for (o = G(L)->strt.hash[lmod(h, G(L)->strt.size)];
+       o != NULL;
+       o = gch(o)->next) {
+    TString *ts = rawgco2ts(o);
+    if (h == ts->tsv.hash &&
+        ts->tsv.len == l &&
+        (memcmp(str, getstr(ts), l * sizeof(char)) == 0)) {
+      if (isdead(G(L), o))  /* string is dead (but was not collected yet)? */
+        changewhite(o);  /* resurrect it */
+      return ts;
+    }
+  }
+  return newlstr(L, str, l, h);  /* not found; create a new string */
+}
+
+
+TString *luaS_new (lua_State *L, const char *str) {
+  return luaS_newlstr(L, str, strlen(str));
+}
+
+
+Udata *luaS_newudata (lua_State *L, size_t s, Table *e) {
+  Udata *u;
+  if (s > MAX_SIZET - sizeof(Udata))
+    luaM_toobig(L);
+  u = &luaC_newobj(L, LUA_TUSERDATA, sizeof(Udata) + s, NULL, 0)->u;
+  u->uv.len = s;
+  u->uv.metatable = NULL;
+  u->uv.env = e;
+  return u;
+}
+