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Multiplatform Kotlin LuaJ port (LUA interpreter)
/*******************************************************************************
* Copyright (c) 2010 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.ast
import org.luaj.vm2.LuaString
import org.luaj.vm2.internal.*
import org.luaj.vm2.io.*
object Str {
fun quoteString(image: String): LuaString {
val s = image.substring(1, image.length - 1)
val bytes = unquote(s)
return LuaString.valueUsing(bytes)
}
fun charString(image: String): LuaString {
val s = image.substring(1, image.length - 1)
val bytes = unquote(s)
return LuaString.valueUsing(bytes)
}
fun longString(image: String): LuaString {
val i = image.indexOf('[', image.indexOf('[') + 1) + 1
val s = image.substring(i, image.length - i)
val b = iso88591bytes(s)
return LuaString.valueUsing(b)
}
fun iso88591bytes(s: String): ByteArray {
val baos = ByteArrayLuaBinOutput()
for (c in s) {
baos.write(c.toInt()) // @TODO: Might require some adjustments?
}
return baos.toByteArray()
}
@UseExperimental(ExperimentalStdlibApi::class)
fun unquote(s: String): ByteArray {
val baos = ByteArrayLuaBinOutput()
val c = s.toCharArray()
val n = c.size
var i = 0
loop@while (i < n) {
if (c[i] == '\\' && i < n) {
when (c[++i]) {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9' -> {
var d = c[i++] - '0'
var j = 0
while (i < n && j < 2 && c[i] >= '0' && c[i] <= '9') {
d = d * 10 + (c[i] - '0')
i++
j++
}
baos.write(d.toByte().toInt())
--i
i++
continue@loop
}
'a' -> {
baos.write(7.toByte().toInt())
i++
continue@loop
}
'b' -> {
baos.write('\b'.toByte().toInt())
i++
continue@loop
}
'f' -> {
//baos.write('\f'.toByte().toInt())
baos.write('\u000c'.toByte().toInt())
i++
continue@loop
}
'n' -> {
baos.write('\n'.toByte().toInt())
i++
continue@loop
}
'r' -> {
baos.write('\r'.toByte().toInt())
i++
continue@loop
}
't' -> {
baos.write('\t'.toByte().toInt())
i++
continue@loop
}
'v' -> {
baos.write(11.toByte().toInt())
i++
continue@loop
}
'"' -> {
baos.write('"'.toByte().toInt())
i++
continue@loop
}
'\'' -> {
baos.write('\''.toByte().toInt())
i++
continue@loop
}
'\\' -> {
baos.write('\\'.toByte().toInt())
i++
continue@loop
}
else -> baos.write(c[i].toByte().toInt())
}
} else {
baos.write(c[i].toByte().toInt())
}
i++
}
return baos.toByteArray()
}
}