generated from rnentjes/kotlin-server-web-undertow
47 lines
1.4 KiB
Kotlin
47 lines
1.4 KiB
Kotlin
package mtmc.os.shell.builtins
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import mtmc.emulator.MonTanaMiniComputer
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import mtmc.os.exec.Executable.Companion.load
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import mtmc.os.fs.FileSystem
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import mtmc.os.fs.Path
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import mtmc.os.shell.ShellCommand
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import mtmc.tokenizer.MTMCTokenizer
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class LoadCommand : ShellCommand() {
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@Throws(Exception::class)
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override fun exec(tokens: MTMCTokenizer, computer: MonTanaMiniComputer) {
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val fs = computer.fileSystem
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val program = tokens.collapseTokensAsString()
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require(!(program == null || program.isBlank())) { "missing or required argument 'src'" }
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val srcPath: Path = getDiskPath(program, fs)
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val exec = load(srcPath)
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computer.load(exec!!.code, exec.data, exec.graphics, exec.debugInfo)
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val source = tokens.source
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// set up an argument if given
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if (tokens.more()) {
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val firstArgToken = tokens.consume()
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val startChar: Int = firstArgToken.start
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val arg = source.substring(startChar)
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val strippedArg = arg.trim()
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if (!strippedArg.isEmpty()) {
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computer.setArg(strippedArg)
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}
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}
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}
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override val help: String
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get() = """
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load <exec>
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- exec : path to an executable file
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""".trimIndent()
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companion object {
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fun getDiskPath(pathString: String, fs: FileSystem): Path {
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val path = Path.of("disk" + fs.resolve(pathString))
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return path.toAbsolutePath()
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}
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}
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}
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