298 lines
6.0 KiB
Java
298 lines
6.0 KiB
Java
/*
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* $Id: Awk.java,v 1.3 2006-11-22 02:57:52 bacon Exp $
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*/
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package ase.test.awk;
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import java.io.*;
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public class Awk extends ase.awk.Awk
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{
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private FileReader insrc;
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private FileWriter outsrc;
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public Awk () throws ase.awk.Exception
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{
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super ();
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}
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protected int open_source (int mode)
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{
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if (mode == SOURCE_READ)
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{
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try { insrc = new FileReader ("t.awk"); }
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catch (IOException e) { return -1; }
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return 1;
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}
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else if (mode == SOURCE_WRITE)
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{
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try { outsrc = new FileWriter ("t.out"); }
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catch (IOException e) { return -1; }
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return 1;
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}
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return -1;
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}
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protected int close_source (int mode)
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{
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if (mode == SOURCE_READ)
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{
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try { insrc.close (); }
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catch (IOException e) { return -1; }
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return 0;
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}
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else if (mode == SOURCE_WRITE)
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{
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try { outsrc.close (); }
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catch (IOException e) { return -1; }
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return 0;
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}
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return -1;
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}
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protected int read_source (char[] buf, int len)
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{
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try { return insrc.read (buf, 0, len); }
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catch (IOException e) { return -1; }
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}
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protected int write_source (char[] buf, int len)
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{
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try { outsrc.write (buf, 0, len); }
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catch (IOException e) { return -1; }
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return len;
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}
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protected int open_console (ase.awk.Extio extio)
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{
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System.err.println ("[open_console called.... name: " + extio.getName() + " mode: " + extio.getMode());
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int mode = extio.getMode ();
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if (mode == ase.awk.Extio.MODE_CONSOLE_READ)
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{
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InputStreamReader isr =
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new InputStreamReader (System.in);
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extio.setHandle (isr);
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return 1;
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}
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else if (mode == ase.awk.Extio.MODE_CONSOLE_WRITE)
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{
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OutputStreamWriter osw =
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new OutputStreamWriter (System.out);
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extio.setHandle (osw);
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return 1;
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}
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return -1;
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}
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protected int close_console (ase.awk.Extio extio)
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{
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System.err.println ("[close_console called.... name: " + extio.getName() + " mode: " + extio.getMode());
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int mode = extio.getMode ();
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if (mode == ase.awk.Extio.MODE_CONSOLE_READ)
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{
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InputStreamReader isr = (InputStreamReader)extio.getHandle ();
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try { isr.close (); }
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catch (IOException e) { return -1; }
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return 0;
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}
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else if (mode == ase.awk.Extio.MODE_CONSOLE_WRITE)
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{
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OutputStreamWriter osw = (OutputStreamWriter)extio.getHandle ();
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//try { osw.close (); }
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//catch (IOException e) { return -1; }
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return 0;
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}
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return -1;
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}
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protected int read_console (ase.awk.Extio extio, char[] buf, int len)
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{
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int mode = extio.getMode ();
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if (mode == ase.awk.Extio.MODE_CONSOLE_READ)
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{
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InputStreamReader isr = (InputStreamReader)extio.getHandle ();
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try
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{
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len = isr.read (buf, 0, len);
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if (len == -1) len = 0;
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}
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catch (IOException e) { System.out.println ("EXCEPTIN---"+e.getMessage());return -1; }
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return len;
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}
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else if (mode == ase.awk.Extio.MODE_CONSOLE_WRITE)
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{
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return -1;
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}
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return -1;
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}
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protected int write_console (ase.awk.Extio extio, char[] buf, int len)
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{
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int mode = extio.getMode ();
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if (mode == ase.awk.Extio.MODE_CONSOLE_READ)
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{
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return -1;
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}
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else if (mode == ase.awk.Extio.MODE_CONSOLE_WRITE)
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{
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OutputStreamWriter osw = (OutputStreamWriter)extio.getHandle ();
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try { osw.write (buf, 0, len); osw.flush (); }
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catch (IOException e) { return -1; }
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return len;
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}
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return -1;
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}
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protected int next_console (ase.awk.Extio extio, char[] buf, int len)
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{
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return 0;
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}
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public int open_file (ase.awk.Extio extio)
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{
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int mode = extio.getMode();
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if (mode == ase.awk.Extio.MODE_FILE_READ)
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{
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FileInputStream fis;
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InputStreamReader isr;
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try { fis = new FileInputStream (extio.getName()); }
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catch (IOException e) { return -1; }
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isr = new InputStreamReader (fis);
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extio.setHandle (isr);
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return 1;
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}
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else if (mode == ase.awk.Extio.MODE_FILE_WRITE)
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{
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FileOutputStream fos;
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OutputStreamWriter osw;
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try { fos = new FileOutputStream (extio.getName()); }
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catch (IOException e) { return -1; }
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osw = new OutputStreamWriter (fos);
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extio.setHandle (osw);
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return 1;
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}
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else if (mode == ase.awk.Extio.MODE_FILE_APPEND)
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{
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FileOutputStream fos;
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OutputStreamWriter osw;
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try { fos = new FileOutputStream (extio.getName(), true); }
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catch (IOException e) { return -1; }
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osw = new OutputStreamWriter (fos);
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extio.setHandle (osw);
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return 1;
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}
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return -1;
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}
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public int close_file (ase.awk.Extio extio)
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{
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int mode = extio.getMode();
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if (mode == ase.awk.Extio.MODE_FILE_READ)
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{
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InputStreamReader isr;
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isr = (InputStreamReader)extio.getHandle();
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try { isr.close (); }
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catch (IOException e) { return -1; }
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return 0;
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}
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else if (mode == ase.awk.Extio.MODE_FILE_WRITE)
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{
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OutputStreamWriter osw;
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osw = (OutputStreamWriter)extio.getHandle();
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try { osw.close (); }
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catch (IOException e) { return -1; }
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return 0;
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}
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else if (mode == ase.awk.Extio.MODE_FILE_APPEND)
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{
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OutputStreamWriter osw;
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osw = (OutputStreamWriter)extio.getHandle();
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try { osw.close (); }
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catch (IOException e) { return -1; }
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return 0;
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}
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return -1;
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}
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protected int read_file (ase.awk.Extio extio, char[] buf, int len)
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{
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int mode = extio.getMode();
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if (mode == ase.awk.Extio.MODE_FILE_READ)
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{
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InputStreamReader isr;
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isr = (InputStreamReader)extio.getHandle();
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try
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{
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len = isr.read (buf, 0, len);
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if (len == -1) len = 0;
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}
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catch (IOException e) { len = -1; }
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return len;
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}
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return -1;
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}
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protected int write_file (ase.awk.Extio extio, char[] buf, int len)
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{
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int mode = extio.getMode();
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if (mode == ase.awk.Extio.MODE_FILE_WRITE ||
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mode == ase.awk.Extio.MODE_FILE_APPEND)
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{
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OutputStreamWriter osw;
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osw = (OutputStreamWriter)extio.getHandle();
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try { osw.write (buf, 0, len); }
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catch (IOException e) { len = -1; }
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return len;
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}
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return -1;
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}
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public static void main (String[] args)
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{
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Awk awk = null;
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try
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{
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awk = new Awk ();
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awk.parse ();
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awk.run ();
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}
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catch (ase.awk.Exception e)
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{
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System.out.println ("ase.awk.Exception - " + e.getMessage());
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}
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finally
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{
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if (awk != null) awk.close ();
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}
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}
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}
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