org.luaj.vm2.lib.jse
Class JseBaseLib

java.lang.Object
  org.luaj.vm2.Varargs
      org.luaj.vm2.LuaValue
          org.luaj.vm2.LuaFunction
              org.luaj.vm2.lib.LibFunction
                  org.luaj.vm2.lib.OneArgFunction
                      org.luaj.vm2.lib.BaseLib
                          org.luaj.vm2.lib.jse.JseBaseLib

All Implemented Interfaces:

ResourceFinder

public class JseBaseLib
extends BaseLib

Subclass of BaseLib and LibFunction which implements the lua basic library functions and provides a directory based ResourceFinder as the BaseLib.FINDER.

Since JME has no file system by default, BaseLib implements ResourceFinder using Class.getResource(String). The JseBaseLib implements FINDER by scanning the current directory first, then falling back to Class.getResource(String) if that fails. Otherwise, the behavior is the same as that of BaseLib.

Typically, this library is included as part of a call to JsePlatform.standardGlobals()

To instantiate and use it directly, link it into your globals table via LuaValue.load(LuaValue) using code such as:

 LuaTable _G = new LuaTable();
 LuaThread.setGlobals(_G);
 _G.load(new JseBaseLib());
 _G.get("print").call(LuaValue.valueOf("hello, world"));
  

Doing so will ensure the library is properly initialized and loaded into the globals table.

This is a direct port of the corresponding library in C.

See Also:

BaseLib, ResourceFinder, BaseLib.FINDER, LibFunction, JsePlatform, JmePlatform, http://www.lua.org/manual/5.1/manual.html#5.1

Field Summary

Fields inherited from class org.luaj.vm2.lib.BaseLib

FINDER, instance, STDERR, STDIN, STDOUT

Fields inherited from class org.luaj.vm2.lib.LibFunction

name, opcode

Fields inherited from class org.luaj.vm2.LuaFunction

env, s_metatable

Fields inherited from class org.luaj.vm2.LuaValue

ADD, CALL, CONCAT, DIV, EMPTYSTRING, EQ, FALSE, INDEX, LE, LEN, LT, METATABLE, MINUSONE, MOD, MODE, MUL, NEWINDEX, NIL, NILS, NONE, NOVALS, ONE, POW, SUB, TBOOLEAN, TFUNCTION, TINT, TLIGHTUSERDATA, TNIL, TNONE, TNUMBER, TOSTRING, TRUE, TSTRING, TTABLE, TTHREAD, TUSERDATA, TVALUE, TYPE_NAMES, UNM, ZERO

Constructor Summary

JseBaseLib()
Construct a JSE base library instance

Method Summary

java.io.InputStream

findResource(java.lang.String filename) Try to open a file in the current working directory, or fall back to base opener if not found.

Methods inherited from class org.luaj.vm2.lib.BaseLib

call, loadFile, loadStream, pcall

Methods inherited from class org.luaj.vm2.lib.OneArgFunction

call, call, call, invoke

Methods inherited from class org.luaj.vm2.lib.LibFunction

bind, bind, newupe, newupl, newupn, tojstring

Methods inherited from class org.luaj.vm2.LuaFunction

checkfunction, getfenv, getmetatable, isfunction, optfunction, setfenv, type, typename

Methods inherited from class org.luaj.vm2.LuaValue

add, add, add, and, arg, arg1, argerror, argerror, aritherror, aritherror, arithmt, arithmtwith, assert_, buffer, callmt, checkboolean, checkclosure, checkdouble, checkint, checkinteger, checkjstring, checklong, checkmetatag, checknotnil, checknumber, checknumber, checkstring, checktable, checkthread, checkuserdata, checkuserdata, checkvalidkey, compareerror, compareerror, comparemt, concat, concat, concatmt, concatTo, concatTo, concatTo, div, div, div, divInto, eq_b, eq, eqmtcall, equals, error, get, get, get, getn, gettable, gt_b, gt_b, gt_b, gt, gt, gt, gteq_b, gteq_b, gteq_b, gteq, gteq, gteq, illegal, inext, invoke, invoke, invoke, invoke, invoke, invokemethod, invokemethod, invokemethod, invokemethod, invokemethod, invokemethod, isboolean, isclosure, isint, isinttype, islong, isnil, isnumber, isstring, istable, isthread, isuserdata, isuserdata, isweaknil, len, lenerror, length, listOf, listOf, load, lt_b, lt_b, lt_b, lt, lt, lt, lteq_b, lteq_b, lteq_b, lteq, lteq, lteq, metatag, method, method, method, method, method, method, mod, mod, mod, modFrom, mul, mul, mul, narg, neg, neq_b, neq, next, not, onInvoke, optboolean, optclosure, optdouble, optint, optinteger, optjstring, optlong, optnumber, optstring, opttable, optthread, optuserdata, optuserdata, optvalue, or, pow, pow, pow, powWith, powWith, presize, raweq, raweq, raweq, raweq, raweq, rawget, rawget, rawget, rawset, rawset, rawset, rawset, rawset, rawset, rawset, rawsetlist, set, set, set, set, set, set, set, setmetatable, settable, strcmp, strcmp, strongkey, strongvalue, strvalue, sub, sub, sub, subFrom, subFrom, tableOf, tableOf, tableOf, tableOf, tableOf, tableOf, tailcallOf, testfor_b, toboolean, tobyte, tochar, todouble, tofloat, toint, tolong, tonumber, toshort, tostring, toString, touserdata, touserdata, typerror, unimplemented, userdataOf, userdataOf, valueOf, valueOf, valueOf, valueOf, valueOf, valueOf, varargsOf, varargsOf, varargsOf, varargsOf, varargsOf, varargsOf

Methods inherited from class org.luaj.vm2.Varargs

argcheck, checkboolean, checkclosure, checkdouble, checkfunction, checkint, checkinteger, checkjstring, checklong, checknotnil, checknumber, checkstring, checktable, checkthread, checkuserdata, checkuserdata, checkvalue, eval, isfunction, isnil, isnoneornil, isnumber, isstring, istable, isTailcall, isthread, isuserdata, isvalue, optboolean, optclosure, optdouble, optfunction, optint, optinteger, optjstring, optlong, optnumber, optstring, opttable, optthread, optuserdata, optuserdata, optvalue, subargs, toboolean, tobyte, tochar, todouble, tofloat, toint, tojstring, tolong, toshort, touserdata, touserdata, type

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

JseBaseLib

public JseBaseLib()

Construct a JSE base library instance

Method Detail

findResource

public java.io.InputStream findResource(java.lang.String filename)

Try to open a file in the current working directory, or fall back to base opener if not found. This implementation attempts to open the file using new File(filename). It falls back to the base implementation that looks it up as a resource in the class path if not found as a plain file.

Specified by:

findResource in interface ResourceFinder

Overrides:

findResource in class BaseLib

Parameters:

filename -

Returns:

InputStream, or null if not found.

See Also:

BaseLib, ResourceFinder