advtrains_train_industrial/textures/advtrains_wagon_tank_inv.png

/*
** $Id: lobject.c,v 2.22.1.1 2007/12/27 13:02:25 roberto Exp $
** Some generic functions over Lua objects
** See Copyright Notice in lua.h
*/

#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define lobject_c
#define LUA_CORE

#include "lua.h"

#include "ldo.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"
#include "lstring.h"
#include "lvm.h"


const TValue luaO_nilobject_ = {{NULL}, LUA_TNIL};


/*
** converts an integer to a "floating point byte", represented as
** (eeeeexxx), where the real value is (1xxx) * 2^(eeeee - 1) if
** eeeee != 0 and (xxx) otherwise.
*/
int luaO_int2fb (unsigned int x) {
  int e = 0;  /* expoent */
  while (x >= 16) {
    x = (x+1) >> 1;
    e++;
  }
  if (x < 8) return x;
  else return ((e+1) << 3) | (cast_int(x) - 8);
}


/* converts back */
int luaO_fb2int (int x) {
  int e = (x >> 3) & 31;
  if (e == 0) return x;
  else return ((x & 7)+8) << (e - 1);
}


int luaO_log2 (unsigned int x) {
  static const lu_byte log_2[256] = {
    0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
    6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
    7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
    7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
    8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
    8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
    8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
    8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
  };
  int l = -1;
  while (x >= 256) { l += 8; x >>= 8; }
  return l + log_2[x];

}


int luaO_rawequalObj (const TValue *t1, const TValue *t2) {
  if (ttype(t1) != ttype(t2)) return 0;
  else switch (ttype(t1)) {
    case LUA_TNIL:
      return 1;
    case LUA_TNUMBER:
      return luai_numeq(nvalue(t1), nvalue(t2));
    case LUA_TBOOLEAN:
      return bvalue(t1) == bvalue(t2);  /* boolean true must be 1 !! */
    case LUA_TLIGHTUSERDATA:
      return pvalue(t1) == pvalue(t2);
    default:
      lua_assert(iscollectable(t1));
      return gcvalue(t1) == gcvalue(t2);
  }
}


int luaO_str2d (const char *s, lua_Number *result) {
  char *endptr;
  *result = lua_str2number(s, &endptr);
  if (endptr == s) return 0;  /* conversion failed */
  if (*endptr == 'x' || *endptr == 'X')  /* maybe an hexadecimal constant? */
    *result = cast_num(strtoul(s, &endptr, 16));
  if (*endptr == '\0') return 1;  /* most common case */
  while (isspace(cast(unsigned char, *endptr))) endptr++;
  if (*endptr != '\0') return 0;  /* invalid trailing characters? */
  return 1;
}


static void pushstr (lua_State *L, const char *str) {
  setsvalue2s(L, L->top, luaS_new(L, str));
  incr_top(L);
}


/* this function handles only `%d', `%c', %f, %p, and `%s' formats */
const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp) {
  int n = 1;
  pushstr(L, "");
  for (;;) {
    const char *e = strchr(fmt, '%');
    if (e == NULL) break;
    setsvalue2s(L, L->top, luaS_newlstr(L, fmt, e-fmt));
    incr_top(L);
    switch (*(e+1)) {
      case 's': {
        const char *s = va_arg(argp, char *);
        if (s == NULL) s = "(null)";
        pushstr(L, s);
        break;
      }
      case 'c': {
        char buff[2];
        buff[0] = cast(char, va_arg(argp, int));
        buff[1] = '\0';
        pushstr(L, buff);
        break;
      }
      case 'd': {
        setnvalue(L->top, cast_num(va_arg(argp, int)));
        incr_top(L);
        break;
      }
      case 'f': {
        setnvalue(L->top, cast_num(va_arg(argp, l_uacNumber)));
        incr_top(L);
        break;
      }
      case 'p': {
        char buff[4*sizeof(void *) + 8]; /* should be enough space for a `%p' */
        sprintf(buff, "%p", va_arg(argp, void *));
        pushstr(L, buff);
        break;
      }
      case '%': {
        pushstr(L, "%");
        break;
      }
      default: {
        char buff[3];
        buff[0] = '%';
        buff[1] = *(e+1);
        buff[2] = '\0';
        pushstr(L, buff);
        break;
      }
    }
    n += 2;
    fmt = e+2;
  }
  pushstr(L, fmt);
  luaV_concat(L, n+1, cast_int(L->top - L->base) - 1);
  L->top -= n;
  return svalue(L->top - 1);
}


const char *luaO_pushfstring (lua_State *L, const char *fmt, ...) {
  const char *msg;
  va_list argp;
  va_start(argp, fmt);
  msg = luaO_pushvfstring(L, fmt, argp);
  va_end(argp);
  return msg;
}


void luaO_chunkid (char *out, const char *source, size_t bufflen) {
  if (*source == '=') {
    strncpy(out, source+1, bufflen);  /* remove first char */
    out[bufflen-1] = '\0';  /* ensures null termination */
  }
  else {  /* out = "source", or "...source" */
    if (*source == '@') {
      size_t l;
      source++;  /* skip the `@' */
      bufflen -= sizeof(" '...' ");
      l = strlen(source);
      strcpy(out, "");
      if (l > bufflen) {
        source += (l-bufflen);  /* get last part of file name */
        strcat(out, "...");
      }
      strcat(out, source);
    }
    else {  /* out = [string "string"] */
      size_t len = strcspn(source, "\n\r");  /* stop at first newline */
      bufflen -= sizeof(" [string \"...\"] ");
      if (len > bufflen) len = bufflen;
      strcpy(out, "[string \"");
      if (source[len] != '\0') {  /* must truncate? */
        strncat(out, source, len);
        strcat(out, "...");
      }
      else
        strcat(out, source);
      strcat(out, "\"]");
    }
  }
}
ofs	hex dump	ascii
0000	89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 00 00 00 10 00 00 00 10 08 06 00 00 00 1f f3 ff	.PNG........IHDR................
0020	61 00 00 00 06 62 4b 47 44 00 ff 00 ff 00 ff a0 bd a7 93 00 00 00 09 70 48 59 73 00 00 0b 13 00	a....bKGD..............pHYs.....
0040	00 0b 13 01 00 9a 9c 18 00 00 00 07 74 49 4d 45 07 e0 0b 06 11 21 0a f9 85 ea 55 00 00 00 19 74	............tIME.....!....U....t
0060	45 58 74 43 6f 6d 6d 65 6e 74 00 43 72 65 61 74 65 64 20 77 69 74 68 20 47 49 4d 50 57 81 0e 17	EXtComment.Created.with.GIMPW...
0080	00 00 01 00 49 44 41 54 38 cb c5 92 31 6a c3 40 10 45 df cc ca 08 54 a9 17 a4 4a 72 0a ab f2 05	....IDAT8...1j.@.E....T...Jr....
00a0	74 04 95 3a 49 ce e0 d2 47 d0 01 ec 8b 24 9d c1 bd 4b ad a4 dd 71 11 c7 41 16 08 12 13 b2 b0 cd	t..:I...G....$...K...q..A.......
00c0	fe cf fb 7f d8 81 ff 3e 72 ff d0 2c 98 b7 4b 80 e6 07 a9 db 7b 40 f3 8b ea 5f 10 69 1e 98 7f fb	.......>r..,..K.....{@..._.i....
00e0	28 00 40 f9 4b 40 57 d7 d6 d5 b5 2d 7e e3 1b f0 5e d7 96 a6 e9 4c 74 ce 01 10 42 98 69 de 7b 5e	(.@.K@W....-~...^....Lt...B.i.{^
0100	77 3b 91 aa aa ac 28 0a ee 01 c3 30 70 3e 9f 01 c8 f3 9c d5 6a 35 03 9c 4e 27 74 dd b6 62 36 6f	w;....(....0p>......j5..N't..b6o
0120	a9 aa 64 59 46 96 65 a8 ce 27 35 33 d6 6d 2b 89 02 5d d7 11 63 9c 18 c6 71 9c 34 48 92 64 a2 f7	..dYF.e..'53.m+..]..c...q.4H.d..
0140	7d 8f 02 52 96 a5 a5 69 3a 49 31 33 42 08 b7 d9 9d 73 38 e7 10 f9 de fc 18 23 de fb cf 3d f8 d8	}..R...i:I13B....s8......#...=..
0160	6c cc 39 47 8c 11 55 25 84 c0 cb e1 20 4f 57 f3 71 c1 a3 00 22 82 99 f1 bc df 8b 99 dd 92 8e d7	l.9G..U%.....OW.q..."...........
0180	bb e4 b9 00 1c 6b 71 cd 33 d2 cd 00 00 00 00 00 49 45 4e 44 ae 42 60 82	.....kq.3.......IEND.B`.