453 lines
9.7 KiB
Java
453 lines
9.7 KiB
Java
/*
|
|
* $Id: Awk.java,v 1.12 2007/06/28 15:45:57 bacon Exp $
|
|
*
|
|
* {License}
|
|
*/
|
|
|
|
package ase.awk;
|
|
|
|
import java.io.*;
|
|
|
|
public abstract class Awk
|
|
{
|
|
// mode for open_source & close_source
|
|
public static final int SOURCE_READ = 1;
|
|
public static final int SOURCE_WRITE = 2;
|
|
|
|
// depth id
|
|
public static final int DEPTH_BLOCK_PARSE = (1 << 0);
|
|
public static final int DEPTH_BLOCK_RUN = (1 << 1);
|
|
public static final int DEPTH_EXPR_PARSE = (1 << 2);
|
|
public static final int DEPTH_EXPR_RUN = (1 << 3);
|
|
public static final int DEPTH_REX_BUILD = (1 << 4);
|
|
public static final int DEPTH_REX_MATCH = (1 << 5);
|
|
|
|
// options
|
|
public static final int OPTION_IMPLICIT = (1 << 0);
|
|
public static final int OPTION_EXPLICIT = (1 << 1);
|
|
public static final int OPTION_UNIQUEFN = (1 << 2);
|
|
public static final int OPTION_SHADING = (1 << 3);
|
|
public static final int OPTION_SHIFT = (1 << 4);
|
|
public static final int OPTION_IDIV = (1 << 5);
|
|
public static final int OPTION_STRCONCAT = (1 << 6);
|
|
public static final int OPTION_EXTIO = (1 << 7);
|
|
public static final int OPTION_COPROC = (1 << 8);
|
|
public static final int OPTION_BLOCKLESS = (1 << 9);
|
|
public static final int OPTION_STRBASEONE = (1 << 10);
|
|
public static final int OPTION_STRIPSPACES = (1 << 11);
|
|
public static final int OPTION_NEXTOFILE = (1 << 12);
|
|
public static final int OPTION_CRLF = (1 << 13);
|
|
public static final int OPTION_ARGSTOMAIN = (1 << 14);
|
|
|
|
protected final static Reader stdin =
|
|
new BufferedReader (new InputStreamReader (System.in));
|
|
|
|
protected final static Writer stdout =
|
|
new BufferedWriter (new OutputStreamWriter (System.out));
|
|
|
|
private long handle;
|
|
|
|
public Awk () throws Exception
|
|
{
|
|
this.handle = 0;
|
|
open ();
|
|
}
|
|
|
|
/* == just in case == */
|
|
protected void finalize () throws Throwable
|
|
{
|
|
if (handle != 0) close ();
|
|
super.finalize ();
|
|
}
|
|
|
|
/* == native methods == */
|
|
private native void open () throws Exception;
|
|
public native void close ();
|
|
public native void parse () throws Exception;
|
|
public native void run (String main, String[] args) throws Exception;
|
|
|
|
private native int getmaxdepth (int id);
|
|
private native void setmaxdepth (int id, int depth);
|
|
|
|
private native int getoption ();
|
|
private native void setoption (int opt);
|
|
|
|
private native boolean getdebug ();
|
|
private native void setdebug (boolean debug);
|
|
|
|
private native void setword (String ow, String nw);
|
|
|
|
private native void addbfn (
|
|
String name, int min_args, int max_args) throws Exception;
|
|
private native void delbfn (String name) throws Exception;
|
|
|
|
native void setfilename (
|
|
long runid, String name) throws Exception;
|
|
native void setofilename (
|
|
long runid, String name) throws Exception;
|
|
|
|
private native Object strtonum (
|
|
long runid, String str) throws Exception;
|
|
private native String valtostr (
|
|
long runid, Object obj) throws Exception;
|
|
|
|
protected native String strftime (String fmt, long sec);
|
|
protected native String strfgmtime (String fmt, long sec);
|
|
protected native int system (String cmd);
|
|
|
|
/* == simpler run methods == */
|
|
public void run (String main) throws Exception
|
|
{
|
|
run (main, null);
|
|
}
|
|
|
|
public void run (String[] args) throws Exception
|
|
{
|
|
run (null, args);
|
|
}
|
|
|
|
public void run () throws Exception
|
|
{
|
|
run (null, null);
|
|
}
|
|
|
|
/* == builtin functions == */
|
|
public void addFunction (
|
|
String name, int min_args, int max_args) throws Exception
|
|
{
|
|
addbfn (name, min_args, max_args);
|
|
}
|
|
|
|
public void deleteFunction (String name) throws Exception
|
|
{
|
|
delbfn (name);
|
|
}
|
|
|
|
protected long builtinFunctionArgumentToLong (
|
|
long runid, Object obj) throws Exception
|
|
{
|
|
long n;
|
|
|
|
if (obj == null) n = 0;
|
|
else
|
|
{
|
|
if (obj instanceof String)
|
|
obj = strtonum (runid, (String)obj);
|
|
|
|
if (obj instanceof Long)
|
|
{
|
|
n = ((Long)obj).longValue ();
|
|
}
|
|
else if (obj instanceof Double)
|
|
{
|
|
n = ((Double)obj).longValue ();
|
|
}
|
|
else if (obj instanceof Integer)
|
|
{
|
|
n = ((Integer)obj).longValue ();
|
|
}
|
|
else if (obj instanceof Short)
|
|
{
|
|
n = ((Short)obj).longValue ();
|
|
}
|
|
else if (obj instanceof Float)
|
|
{
|
|
n = ((Float)obj).longValue ();
|
|
}
|
|
else n = 0;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
protected double builtinFunctionArgumentToDouble (
|
|
long runid, Object obj) throws Exception
|
|
{
|
|
double n;
|
|
|
|
if (obj == null) n = 0.0;
|
|
else
|
|
{
|
|
if (obj instanceof String)
|
|
obj = strtonum (runid, (String)obj);
|
|
|
|
if (obj instanceof Long)
|
|
{
|
|
n = ((Long)obj).doubleValue ();
|
|
}
|
|
else if (obj instanceof Double)
|
|
{
|
|
n = ((Double)obj).doubleValue ();
|
|
}
|
|
else if (obj instanceof Integer)
|
|
{
|
|
n = ((Integer)obj).doubleValue ();
|
|
}
|
|
else if (obj instanceof Short)
|
|
{
|
|
n = ((Short)obj).doubleValue ();
|
|
}
|
|
else if (obj instanceof Float)
|
|
{
|
|
n = ((Float)obj).doubleValue ();
|
|
}
|
|
else n = 0.0;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
protected String builtinFunctionArgumentToString (
|
|
long runid, Object obj) throws Exception
|
|
{
|
|
String str;
|
|
|
|
if (obj == null) str = "";
|
|
else if (obj instanceof String) str = (String)obj;
|
|
else str = valtostr (runid, obj);
|
|
|
|
return str;
|
|
}
|
|
|
|
/* == console name setters == */
|
|
protected void setConsoleInputName (
|
|
Extio extio, String name) throws Exception
|
|
{
|
|
/* TODO: setfilename is not safe. for example, it can
|
|
* crash the program if runid is invalid. so this wrapper
|
|
* needs to do some sanity check. */
|
|
setfilename (extio.getRunId(), name);
|
|
}
|
|
|
|
protected void setConsoleOutputName (
|
|
Extio extio, String name) throws Exception
|
|
{
|
|
setofilename (extio.getRunId(), name);
|
|
}
|
|
|
|
/* == depth limiting == */
|
|
public int getMaxDepth (int id)
|
|
{
|
|
return getmaxdepth (id);
|
|
}
|
|
|
|
public void setMaxDepth (int ids, int depth)
|
|
{
|
|
setmaxdepth (ids, depth);
|
|
}
|
|
|
|
/* == option == */
|
|
public int getOption ()
|
|
{
|
|
return getoption ();
|
|
}
|
|
|
|
public void setOption (int opt)
|
|
{
|
|
setoption (opt);
|
|
}
|
|
|
|
/* == debug == */
|
|
public boolean getDebug ()
|
|
{
|
|
return getdebug ();
|
|
}
|
|
|
|
public void setDebug (boolean debug)
|
|
{
|
|
setdebug (debug);
|
|
}
|
|
|
|
public void setWord (String ow, String nw)
|
|
{
|
|
setword (ow, nw);
|
|
}
|
|
|
|
public void unsetWord (String ow)
|
|
{
|
|
setword (ow, null);
|
|
}
|
|
|
|
public void unsetAllWords ()
|
|
{
|
|
setword (null, null);
|
|
}
|
|
|
|
/* == source code management == */
|
|
protected abstract int openSource (int mode);
|
|
protected abstract int closeSource (int mode);
|
|
protected abstract int readSource (char[] buf, int len);
|
|
protected abstract int writeSource (char[] buf, int len);
|
|
|
|
/* == external io interface == */
|
|
protected int openExtio (Extio extio)
|
|
{
|
|
switch (extio.getType())
|
|
{
|
|
case Extio.TYPE_CONSOLE:
|
|
{
|
|
Console con = new Console (this, extio);
|
|
int n = openConsole (con);
|
|
extio.setHandle (con);
|
|
return n;
|
|
}
|
|
|
|
case Extio.TYPE_FILE:
|
|
{
|
|
File file = new File (this, extio);
|
|
int n = openFile (file);
|
|
extio.setHandle (file);
|
|
return n;
|
|
}
|
|
|
|
case Extio.TYPE_PIPE:
|
|
{
|
|
Pipe pipe = new Pipe (this, extio);
|
|
int n = openPipe (pipe);
|
|
extio.setHandle (pipe);
|
|
return n;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
protected int closeExtio (Extio extio)
|
|
{
|
|
switch (extio.getType())
|
|
{
|
|
case Extio.TYPE_CONSOLE:
|
|
return closeConsole (
|
|
(Console)extio.getHandle());
|
|
|
|
case Extio.TYPE_FILE:
|
|
return closeFile ((File)extio.getHandle());
|
|
|
|
case Extio.TYPE_PIPE:
|
|
return closePipe ((Pipe)extio.getHandle());
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
protected int readExtio (Extio extio, char[] buf, int len)
|
|
{
|
|
// this check is needed because 0 is used to indicate
|
|
// the end of the stream. java streams can return 0
|
|
// if the data given is 0 bytes and it didn't reach
|
|
// the end of the stream.
|
|
if (len <= 0) return -1;
|
|
|
|
switch (extio.getType())
|
|
{
|
|
|
|
case Extio.TYPE_CONSOLE:
|
|
{
|
|
return readConsole (
|
|
(Console)extio.getHandle(), buf, len);
|
|
}
|
|
|
|
case Extio.TYPE_FILE:
|
|
{
|
|
return readFile (
|
|
(File)extio.getHandle(), buf, len);
|
|
}
|
|
|
|
case Extio.TYPE_PIPE:
|
|
{
|
|
return readPipe (
|
|
(Pipe)extio.getHandle(), buf, len);
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
protected int writeExtio (Extio extio, char[] buf, int len)
|
|
{
|
|
if (len <= 0) return -1;
|
|
|
|
switch (extio.getType())
|
|
{
|
|
|
|
case Extio.TYPE_CONSOLE:
|
|
{
|
|
return writeConsole (
|
|
(Console)extio.getHandle(), buf, len);
|
|
}
|
|
|
|
case Extio.TYPE_FILE:
|
|
{
|
|
return writeFile (
|
|
(File)extio.getHandle(), buf, len);
|
|
}
|
|
|
|
case Extio.TYPE_PIPE:
|
|
{
|
|
return writePipe (
|
|
(Pipe)extio.getHandle(), buf, len);
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
protected int flushExtio (Extio extio)
|
|
{
|
|
switch (extio.getType())
|
|
{
|
|
|
|
case Extio.TYPE_CONSOLE:
|
|
{
|
|
return flushConsole ((Console)extio.getHandle());
|
|
}
|
|
|
|
case Extio.TYPE_FILE:
|
|
{
|
|
return flushFile ((File)extio.getHandle());
|
|
}
|
|
|
|
case Extio.TYPE_PIPE:
|
|
{
|
|
return flushPipe ((Pipe)extio.getHandle());
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
protected int nextExtio (Extio extio)
|
|
{
|
|
int type = extio.getType ();
|
|
|
|
switch (extio.getType())
|
|
{
|
|
case Extio.TYPE_CONSOLE:
|
|
{
|
|
return nextConsole ((Console)extio.getHandle());
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
protected abstract int openConsole (Console con);
|
|
protected abstract int closeConsole (Console con);
|
|
protected abstract int readConsole (Console con, char[] buf, int len);
|
|
protected abstract int writeConsole (Console con, char[] buf, int len);
|
|
protected abstract int flushConsole (Console con);
|
|
protected abstract int nextConsole (Console con);
|
|
|
|
protected abstract int openFile (File file);
|
|
protected abstract int closeFile (File file);
|
|
protected abstract int readFile (File file, char[] buf, int len);
|
|
protected abstract int writeFile (File file, char[] buf, int len);
|
|
protected abstract int flushFile (File file);
|
|
|
|
protected abstract int openPipe (Pipe pipe);
|
|
protected abstract int closePipe (Pipe pipe);
|
|
protected abstract int readPipe (Pipe pipe, char[] buf, int len);
|
|
protected abstract int writePipe (Pipe pipe, char[] buf, int len);
|
|
protected abstract int flushPipe (Pipe pipe);
|
|
}
|