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/*******************************************************************************
* Copyright (c) 2009 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.luaj.vm2.cli
import org.luaj.vm2.*
import org.luaj.vm2.compiler.*
import org.luaj.vm2.io.*
import org.luaj.vm2.lib.jse.*
import java.io.*
/**
* Compiler for lua files to lua bytecode.
*/
class luac @Throws(IOException::class)
private constructor(args: Array) {
private var list = false
private var output = "luac.out"
private var parseonly = false
private var stripdebug = false
private var littleendian = false
private var numberformat = DumpState.NUMBER_FORMAT_DEFAULT
private var versioninfo = false
private var processing = true
private var encoding: String? = null
init {
// process args
try {
// get stateful args
run {
var i = 0
while (i < args.size) {
if (!processing || !args[i].startsWith("-")) {
// input file - defer to next stage
} else if (args[i].length <= 1) {
// input file - defer to next stage
} else {
when (args[i][1]) {
'l' -> list = true
'o' -> {
if (++i >= args.size)
usageExit()
output = args[i]
}
'p' -> parseonly = true
's' -> stripdebug = true
'e' -> littleendian = true
'i' -> {
if (args[i].length <= 2)
usageExit()
numberformat = Integer.parseInt(args[i].substring(2))
}
'v' -> versioninfo = true
'c' -> {
if (++i >= args.size)
usageExit()
encoding = args[i]
}
'-' -> {
if (args[i].length > 2)
usageExit()
processing = false
}
else -> usageExit()
}
}
i++
}
}
// echo version
if (versioninfo)
println(version)
// open output file
val fos = FileOutputStream(output)
// process input files
try {
val globals = JsePlatform.standardGlobals()
processing = true
var i = 0
while (i < args.size) {
if (!processing || !args[i].startsWith("-")) {
val chunkname = args[i].substring(0, args[i].length - 4)
processScript(globals, File(args[i]).readBytes().toLuaBinInput(), chunkname, fos)
} else if (args[i].length <= 1) {
processScript(globals, System.`in`.toLua(), "=stdin", fos)
} else {
when (args[i][1]) {
'o', 'c' -> ++i
'-' -> processing = false
}
}
i++
}
} finally {
fos.close()
}
} catch (ioe: IOException) {
System.err.println(ioe.toString())
System.exit(-2)
}
}
@Throws(IOException::class)
private fun processScript(globals: Globals, script: LuaBinInput, chunkname: String, out: OutputStream) {
var script = script
try {
// create the chunk
script = (script).buffered()
val chunk = if (encoding != null)
globals.compilePrototype(script.reader(encoding!!), chunkname)
else
globals.compilePrototype(script, chunkname)
// list the chunk
if (list)
Print.printCode(chunk)
// write out the chunk
if (!parseonly) {
DumpState.dump(chunk, out.toLua(), stripdebug, numberformat, littleendian)
}
} catch (e: Exception) {
e.printStackTrace(System.err)
} finally {
script.close()
}
}
companion object {
private val version = Lua._VERSION + "Copyright (C) 2009 luaj.org"
private val usage = "usage: java -cp luaj-jse.jar luac [options] [filenames].\n" +
"Available options are:\n" +
" - process stdin\n" +
" -l list\n" +
" -o name output to file 'name' (default is \"luac.out\")\n" +
" -p parse only\n" +
" -s strip debug information\n" +
" -e little endian format for numbers\n" +
" -i number format 'n', (n=0,1 or 4, default=" + DumpState.NUMBER_FORMAT_DEFAULT + ")\n" +
" -v show version information\n" +
" -c enc use the supplied encoding 'enc' for input files\n" +
" -- stop handling options\n"
private fun usageExit() {
println(usage)
System.exit(-1)
}
@Throws(IOException::class)
@JvmStatic
fun main(args: Array) {
luac(args)
}
}
}
