src/Pure/Tools/isabelle_system.scala

--- a/src/Pure/Tools/isabelle_system.scala	Wed Mar 04 11:05:02 2009 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,158 +0,0 @@
-/*  Title:      Pure/Tools/isabelle_system.scala
-    Author:     Makarius
-
-Isabelle system support -- basic Cygwin/Posix compatibility.
-*/
-
-package isabelle
-
-import java.util.regex.{Pattern, Matcher}
-import java.io.{BufferedReader, InputStreamReader, FileInputStream, File, IOException}
-
-import scala.io.Source
-
-
-class IsabelleSystem {
-
-  val charset = "UTF-8"
-
-
-  /* Isabelle environment settings */
-
-  private val environment = System.getenv
-
-  def getenv(name: String) = {
-    val value = environment.get(if (name == "HOME") "HOME_JVM" else name)
-    if (value != null) value else ""
-  }
-
-  def getenv_strict(name: String) = {
-    val value = environment.get(name)
-    if (value != "") value else error("Undefined environment variable: " + name)
-  }
-
-  val is_cygwin = Pattern.matches(".*-cygwin", getenv_strict("ML_PLATFORM"))
-
-
-  /* file path specifications */
-
-  private val cygdrive_pattern = Pattern.compile("/cygdrive/([a-zA-Z])($|/.*)")
-
-  def platform_path(source_path: String) = {
-    val result_path = new StringBuilder
-
-    def init(path: String) = {
-      val cygdrive = cygdrive_pattern.matcher(path)
-      if (cygdrive.matches) {
-        result_path.length = 0
-        result_path.append(cygdrive.group(1))
-        result_path.append(":")
-        result_path.append(File.separator)
-        cygdrive.group(2)
-      }
-      else if (path.startsWith("/")) {
-        result_path.length = 0
-        result_path.append(getenv_strict("ISABELLE_ROOT_JVM"))
-        path.substring(1)
-      }
-      else path
-    }
-    def append(path: String) = {
-      for (p <- init(path).split("/")) {
-        if (p != "") {
-          val len = result_path.length
-          if (len > 0 && result_path(len - 1) != File.separatorChar)
-            result_path.append(File.separator)
-          result_path.append(p)
-        }
-      }
-    }
-    for (p <- init(source_path).split("/")) {
-      if (p.startsWith("$")) append(getenv_strict(p.substring(1)))
-      else if (p == "~") append(getenv_strict("HOME"))
-      else if (p == "~~") append(getenv_strict("ISABELLE_HOME"))
-      else append(p)
-    }
-    result_path.toString
-  }
-
-  def platform_file(path: String) =
-    new File(platform_path(path))
-
-
-  /* processes */
-
-  def execute(redirect: Boolean, args: String*): Process = {
-    val cmdline = new java.util.LinkedList[String]
-    if (is_cygwin) cmdline.add(platform_path("/bin/env"))
-    for (s <- args) cmdline.add(s)
-
-    val proc = new ProcessBuilder(cmdline)
-    proc.environment.clear
-    proc.environment.putAll(environment)
-    proc.redirectErrorStream(redirect)
-    proc.start
-  }
-
-
-  /* Isabelle tools (non-interactive) */
-
-  def isabelle_tool(args: String*) = {
-    val proc =
-      try { execute(true, (List(getenv_strict("ISABELLE_TOOL")) ++ args): _*) }
-      catch { case e: IOException => error(e.getMessage) }
-    proc.getOutputStream.close
-    val output = Source.fromInputStream(proc.getInputStream, charset).mkString
-    val rc = proc.waitFor
-    (output, rc)
-  }
-
-
-  /* named pipes */
-
-  def mk_fifo() = {
-    val (result, rc) = isabelle_tool("mkfifo")
-    if (rc == 0) result.trim
-    else error(result)
-  }
-
-  def rm_fifo(fifo: String) = {
-    val (result, rc) = isabelle_tool("rmfifo", fifo)
-    if (rc != 0) error(result)
-  }
-
-  def fifo_reader(fifo: String) = {
-    // blocks until writer is ready
-    val stream =
-      if (is_cygwin) execute(false, "cat", fifo).getInputStream
-      else new FileInputStream(fifo)
-    new BufferedReader(new InputStreamReader(stream, charset))
-  }
-
-
-  /* find logics */
-
-  def find_logics() = {
-    val ml_ident = getenv_strict("ML_IDENTIFIER")
-    var logics: Set[String] = Set()
-    for (dir <- getenv_strict("ISABELLE_PATH").split(":")) {
-      val files = platform_file(dir + "/" + ml_ident).listFiles()
-      if (files != null) {
-        for (file <- files if file.isFile) logics += file.getName
-      }
-    }
-    logics.toList.sort(_ < _)
-  }
-
-
-  /* symbols */
-
-  private def read_symbols(path: String) = {
-    val file = new File(platform_path(path))
-    if (file.canRead) Source.fromFile(file).getLines
-    else Iterator.empty
-  }
-  val symbols = new Symbol.Interpretation(
-    read_symbols("$ISABELLE_HOME/etc/symbols") ++
-    read_symbols("$ISABELLE_HOME_USER/etc/symbols"))
-}