Examples of org.luaj.vm2.LuaString

org.luaj.vm2.LuaString
Subclass of {@link LuaValue} for representing lua strings.
Because lua string values are more nearly sequences of bytes than sequences of characters or unicode code points, the {@link LuaString}implementation holds the string value in an internal byte array.
{@link LuaString} values are generally not mutable once constructed, so multiple {@link LuaString} values can chare a single byte array.
Currently {@link LuaString}s are pooled via a centrally managed weak table. To ensure that as many string values as possible take advantage of this, Constructors are not exposed directly. As with number, booleans, and nil, instance construction should be via {@link LuaValue#valueOf(byte[])} or similar API.
When Java Strings are used to initialize {@link LuaString} data, the UTF8 encoding is assumed. The functions {@link LuaString#lengthAsUtf8(char[]),}{ {@link LuaString#encodeToUtf8(char[],byte[],int)}, and {@link LuaString#decodeAsUtf8(byte[],int,int) are used to convert back and forth between UTF8 byte arrays and character arrays.} @see LuaValue @see LuaValue#valueOf(String) @see LuaValue#valueOf(byte[])

    int level = args.checkint(a++);
    int local = args.checkint(a++);
    
    DebugState ds = getDebugState(thread); 
    DebugInfo di = ds.getDebugInfo(level-1);
    LuaString name = (di!=null? di.getlocalname(local): null);
    if ( name != null ) {
      LuaValue value = di.stack[local-1];
      return varargsOf( name, value );
    } else {
      return NIL;

View Full Code Here

    int local = args.checkint(a++);
    LuaValue value = args.arg(a++);
    
    DebugState ds = getDebugState(thread); 
    DebugInfo di = ds.getDebugInfo(level-1);
    LuaString name = (di!=null? di.getlocalname(local): null);
    if ( name != null ) {
      di.stack[local-1] = value;
      return name;
    } else {
      return NIL;

View Full Code Here

  static Varargs _getupvalue(Varargs args) {
    LuaValue func = args.checkfunction(1);
    int up = args.checkint(2);
    if ( func instanceof LuaClosure ) {
      LuaClosure c = (LuaClosure) func;
      LuaString name = findupvalue(c, up);
      if ( name != null ) {
        return varargsOf(name, c.upValues[up-1].getValue() );
      }
    }
    return NIL;

View Full Code Here

    LuaValue func = args.checkfunction(1);
    int up = args.checkint(2);
    LuaValue value = args.arg(3);
    if ( func instanceof LuaClosure ) {
      LuaClosure c = (LuaClosure) func;
      LuaString name = findupvalue(c, up);
      if ( name != null ) {
        c.upValues[up-1].setValue(value);
        return name;
      }
    }

View Full Code Here

  }  


  
  // return StrValue[] { name, namewhat } if found, null if not
  static LuaString[] getobjname(DebugInfo di, int stackpos) {
    LuaString name;
    if (di.closure != null) { /* a Lua function? */
      Prototype p = di.closure.p;
      int pc = di.pc; // currentpc(L, ci);
      int i;// Instruction i;
      name = p.getlocalname(stackpos + 1, pc);

View Full Code Here

          BaseLib.loadStream( baselib.STDIN, "stdin" ):
          BaseLib.loadFile( args.checkjstring(1) );
      }
      case 6: // "loadstring", // ( string [,chunkname] ) -> chunk | nil, msg
      {
        LuaString script = args.checkstring(1);
        String chunkname = args.optjstring(2, "string");
        return BaseLib.loadStream(script.toInputStream(),chunkname);
      }
      case 7: // "pcall", // (f, arg1, ...) -> status, result1, ...
      {
        LuaValue func = args.checkvalue(1);
        LuaThread.onCall(this);
        try {
          return pcall(func,args.subargs(2),null);
        } finally {
          LuaThread.onReturn();
        }
      }
      case 8: // "xpcall", // (f, err) -> result1, ...        
      {
        LuaThread.onCall(this);
        try {
          return pcall(args.arg1(),NONE,args.checkvalue(2));
        } finally {
          LuaThread.onReturn();
        }
      }
      case 9: // "print", // (...) -> void
      {
        LuaValue tostring = LuaThread.getGlobals().get("tostring"); 
        for ( int i=1, n=args.narg(); i<=n; i++ ) {
          if ( i>1 ) baselib.STDOUT.write( '\t' );
          LuaString s = tostring.call( args.arg(i) ).strvalue();
          int z = s.indexOf((byte)0, 0);
          baselib.STDOUT.write( s.m_bytes, s.m_offset, z>=0? z: s.m_length );
        }
        baselib.STDOUT.println();
        return NONE;
      }

View Full Code Here

   * 
   * This function may receive optional options after the module name, where
   * each option is a function to be applied over the module.
   */
  public Varargs module(Varargs args) {
    LuaString modname = args.checkstring(1);
    int n = args.narg();
    LuaValue value = LOADED.get(modname);
    LuaValue module;
    if ( ! value.istable() ) { /* not found? */

View Full Code Here

    int b, e=(-1);
    do {
      e = fname.indexOf(_DOT, b=e+1 );
      if ( e < 0 )
        e = fname.m_length;
      LuaString key = fname.substring(b, e);
      LuaValue val = table.rawget(key);
      if ( val.isnil() ) { /* no such field? */
        LuaTable field = new LuaTable(); /* new table for field */
        table.set(key, field);
        table = field;

View Full Code Here

   * 
   * If there is any error loading or running the module, or if it cannot find any loader for 
   * the module, then require signals an error.
   */  
  public LuaValue require( LuaValue arg ) {
    LuaString name = arg.checkstring();
    LuaValue loaded = LOADED.get(name);
    if ( loaded.toboolean() ) {
      if ( loaded == _SENTINEL )
        error("loop or previous error loading module '"+name+"'");
      return loaded;

View Full Code Here

    args.checkstring(1);
    return varargsOf(NIL, valueOf("dynamic libraries not enabled"), valueOf("absent"));
  }


  LuaValue loader_preload( Varargs args ) {
    LuaString name = args.checkstring(1);
    LuaValue preload = PACKAGE.get(_PRELOAD).checktable();
    LuaValue val = preload.get(name);
    return val.isnil()? 
      valueOf("\n\tno field package.preload['"+name+"']"):
      val;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.luaj.vm2.LuaString

com.aerospike.client.lua.LuaBytesLib$MetaLib

com.aerospike.client.lua.LuaCache

com.aerospike.client.lua.LuaInstance

com.aerospike.client.lua.LuaListLib$create

com.aerospike.client.lua.LuaMapLib$create

com.aerospike.client.lua.LuaStreamLib

com.aerospike.client.query.QueryAggregateCommand

com.isteinvids.untrusted.level.LevelManager

com.isteinvids.untrusted.level.LuaLevel

com.isteinvids.untrusted.level.LuaLevel$addentity

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.