text: /*
  ** $Id: print.c,v 1.55a 2006/05/31 13:30:05 lhf Exp $
  ** print bytecodes
  ** See Copyright Notice in lua.h
  */
  
  #include <ctype.h>
  #include <stdio.h>
  
  #define luac_c
  #define LUA_CORE
  
  #include "ldebug.h"
  #include "lobject.h"
  #include "lopcodes.h"
  #include "lundump.h"
  
  #define PrintFunction	luaU_print
  
  #define Sizeof(x)	((int)sizeof(x))
  #define VOID(p)		((const void*)(p))
  
  static void PrintString(const TString* ts)
  {
   const char* s=getstr(ts);
   size_t i,n=ts->tsv.len;
   putchar('"');
   for (i=0; i<n; i++)
   {
    int c=s[i];
    switch (c)
    {
     case '"': printf("\\\""); break;
     case '\\': printf("\\\\"); break;
     case '\a': printf("\\a"); break;
     case '\b': printf("\\b"); break;
     case '\f': printf("\\f"); break;
     case '\n': printf("\\n"); break;
     case '\r': printf("\\r"); break;
     case '\t': printf("\\t"); break;
     case '\v': printf("\\v"); break;
     default:	if (isprint((unsigned char)c))
     			putchar(c);
  		else
  			printf("\\%03u",(unsigned char)c);
    }
   }
   putchar('"');
  }
  
  static void PrintConstant(const Proto* f, int i)
  {
   const TValue* o=&f->k[i];
   switch (ttype(o))
   {
    case LUA_TNIL:
  	printf("nil");
  	break;
    case LUA_TBOOLEAN:
  	printf(bvalue(o) ? "true" : "false");
  	break;
    case LUA_TNUMBER:
  	printf(LUA_NUMBER_FMT,nvalue(o));
  	break;
    case LUA_TSTRING:
  	PrintString(rawtsvalue(o));
  	break;
    default:				/* cannot happen */
  	printf("? type=%d",ttype(o));
  	break;
   }
  }
  
  static void PrintCode(const Proto* f)
  {
   const Instruction* code=f->code;
   int pc,n=f->sizecode;
   for (pc=0; pc<n; pc++)
   {
    Instruction i=code[pc];
    OpCode o=GET_OPCODE(i);
    int a=GETARG_A(i);
    int b=GETARG_B(i);
    int c=GETARG_C(i);
    int bx=GETARG_Bx(i);
    int sbx=GETARG_sBx(i);
    int line=getline(f,pc);
    printf("\t%d\t",pc+1);
    if (line>0) printf("[%d]\t",line); else printf("[-]\t");
    printf("%-9s\t",luaP_opnames[o]);
    switch (getOpMode(o))
    {
     case iABC:
      printf("%d",a);
      if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (-1-INDEXK(b)) : b);
      if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (-1-INDEXK(c)) : c);
      break;
     case iABx:
      if (getBMode(o)==OpArgK) printf("%d %d",a,-1-bx); else printf("%d %d",a,bx);
      break;
     case iAsBx:
      if (o==OP_JMP) printf("%d",sbx); else printf("%d %d",a,sbx);
      break;
    }
    switch (o)
    {
     case OP_LOADK:
      printf("\t; "); PrintConstant(f,bx);
      break;
     case OP_GETUPVAL:
     case OP_SETUPVAL:
      printf("\t; %s", (f->sizeupvalues>0) ? getstr(f->upvalues[b]) : "-");
      break;
     case OP_GETGLOBAL:
     case OP_SETGLOBAL:
      printf("\t; %s",svalue(&f->k[bx]));
      break;
     case OP_GETTABLE:
     case OP_SELF:
      if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); }
      break;
     case OP_SETTABLE:
     case OP_ADD:
     case OP_SUB:
     case OP_MUL:
     case OP_DIV:
     case OP_POW:
     case OP_EQ:
     case OP_LT:
     case OP_LE:
      if (ISK(b) || ISK(c))
      {
       printf("\t; ");
       if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-");
       printf(" ");
       if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-");
      }
      break;
     case OP_JMP:
     case OP_FORLOOP:
     case OP_FORPREP:
      printf("\t; to %d",sbx+pc+2);
      break;
     case OP_CLOSURE:
      printf("\t; %p",VOID(f->p[bx]));
      break;
     case OP_SETLIST:
      if (c==0) printf("\t; %d",(int)code[++pc]);
      else printf("\t; %d",c);
      break;
     default:
      break;
    }
    printf("\n");
   }
  }
  
  #define SS(x)	(x==1)?"":"s"
  #define S(x)	x,SS(x)
  
  static void PrintHeader(const Proto* f)
  {
   const char* s=getstr(f->source);
   if (*s=='@' || *s=='=')
    s++;
   else if (*s==LUA_SIGNATURE[0])
    s="(bstring)";
   else
    s="(string)";
   printf("\n%s <%s:%d,%d> (%d instruction%s, %d bytes at %p)\n",
   	(f->linedefined==0)?"main":"function",s,
  	f->linedefined,f->lastlinedefined,
  	S(f->sizecode),f->sizecode*Sizeof(Instruction),VOID(f));
   printf("%d%s param%s, %d slot%s, %d upvalue%s, ",
  	f->numparams,f->is_vararg?"+":"",SS(f->numparams),
  	S(f->maxstacksize),S(f->nups));
   printf("%d local%s, %d constant%s, %d function%s\n",
  	S(f->sizelocvars),S(f->sizek),S(f->sizep));
  }
  
  static void PrintConstants(const Proto* f)
  {
   int i,n=f->sizek;
   printf("constants (%d) for %p:\n",n,VOID(f));
   for (i=0; i<n; i++)
   {
    printf("\t%d\t",i+1);
    PrintConstant(f,i);
    printf("\n");
   }
  }
  
  static void PrintLocals(const Proto* f)
  {
   int i,n=f->sizelocvars;
   printf("locals (%d) for %p:\n",n,VOID(f));
   for (i=0; i<n; i++)
   {
    printf("\t%d\t%s\t%d\t%d\n",
    i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1);
   }
  }
  
  static void PrintUpvalues(const Proto* f)
  {
   int i,n=f->sizeupvalues;
   printf("upvalues (%d) for %p:\n",n,VOID(f));
   if (f->upvalues==NULL) return;
   for (i=0; i<n; i++)
   {
    printf("\t%d\t%s\n",i,getstr(f->upvalues[i]));
   }
  }
  
  void PrintFunction(const Proto* f, int full)
  {
   int i,n=f->sizep;
   PrintHeader(f);
   PrintCode(f);
   if (full)
   {
    PrintConstants(f);
    PrintLocals(f);
    PrintUpvalues(f);
   }
   for (i=0; i<n; i++) PrintFunction(f->p[i],full);
  }
  