Added #1864 Commandline: Allow to set special value "/dev/stdin" for input files to read from stdin (even on Windows)

src/com/jpexs/decompiler/flash/console/StdInAwareFileInputStream.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2022 JPEXS
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.jpexs.decompiler.flash.console;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * FileInputStream to which can be passed /dev/stdin as special file for stdin on Windows.
+ * On linux, standard /dev/stdin is used.
+ * @author JPEXS
+ */
+public class StdInAwareFileInputStream extends InputStream implements AutoCloseable {
+
+    public static final String STDIN_PATH = "/dev/stdin";
+    
+    private InputStream is;
+    
+    public StdInAwareFileInputStream(File file) throws FileNotFoundException {
+        String absPath = file.getPath().replace("\\", "/");
+        if (absPath.equals(STDIN_PATH) && !file.exists()) {
+            is = System.in;
+        } else {
+            is = new FileInputStream(file);
+        }
+    }
+    
+    public StdInAwareFileInputStream(String file) throws FileNotFoundException {
+        this(new File(file));
+    }
+
+    @Override
+    public int read() throws IOException {
+        return is.read();
+    }
+
+    @Override
+    public int available() throws IOException {
+        return is.available();
+    }
+
+    @Override
+    public long skip(long n) throws IOException {
+        return is.skip(n);
+    }
+
+    @Override
+    public synchronized void reset() throws IOException {
+        is.reset();
+    }    
+
+    @Override
+    public void close() throws IOException {
+        is.close();
+    }        
+}