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Add formatter definition and format code

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This commit is contained in:
Enrico Horn
2021-07-03 22:23:09 +02:00
parent 3c266bcc98
commit e7e6190f9c
144 changed files with 17201 additions and 14311 deletions
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156
luaj-jme/src/main/java/org/luaj/vm2/lib/jme/JmeIoLib.java
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@@ -34,61 +34,74 @@ import org.luaj.vm2.LuaValue;
import org.luaj.vm2.lib.IoLib;
import org.luaj.vm2.lib.LibFunction;
/**
* Subclass of {@link IoLib} and therefore {@link LibFunction} which implements the lua standard {@code io}
* library for the JSE platform.
* <p>
* The implementation of the is based on CLDC 1.0 and StreamConnection.
* However, seek is not supported.
/**
* Subclass of {@link IoLib} and therefore {@link LibFunction} which implements
* the lua standard {@code io} library for the JSE platform.
* <p>
* Typically, this library is included as part of a call to
* The implementation of the is based on CLDC 1.0 and StreamConnection. However,
* seek is not supported.
* <p>
* Typically, this library is included as part of a call to
* {@link org.luaj.vm2.lib.jme.JmePlatform#standardGlobals()}
* <pre> {@code
* Globals globals = JmePlatform.standardGlobals();
* globals.get("io").get("write").call(LuaValue.valueOf("hello, world\n"));
* } </pre>
*
* <pre>
* {
* &#64;code
* Globals globals = JmePlatform.standardGlobals();
* globals.get("io").get("write").call(LuaValue.valueOf("hello, world\n"));
* }
* </pre>
* <p>
* For special cases where the smallest possible footprint is desired,
* a minimal set of libraries could be loaded
* directly via {@link Globals#load(LuaValue)} using code such as:
* <pre> {@code
* Globals globals = new Globals();
* globals.load(new JmeBaseLib());
* globals.load(new PackageLib());
* globals.load(new JmeIoLib());
* globals.get("io").get("write").call(LuaValue.valueOf("hello, world\n"));
* } </pre>
* <p>However, other libraries such as <em>MathLib</em> are not loaded in this case.
* For special cases where the smallest possible footprint is desired, a minimal
* set of libraries could be loaded directly via {@link Globals#load(LuaValue)}
* using code such as:
*
* <pre>
* {
* &#64;code
* Globals globals = new Globals();
* globals.load(new JmeBaseLib());
* globals.load(new PackageLib());
* globals.load(new JmeIoLib());
* globals.get("io").get("write").call(LuaValue.valueOf("hello, world\n"));
* }
* </pre>
* <p>
* This has been implemented to match as closely as possible the behavior in the corresponding library in C.
* However, other libraries such as <em>MathLib</em> are not loaded in this
* case.
* <p>
* This has been implemented to match as closely as possible the behavior in the
* corresponding library in C.
*
* @see LibFunction
* @see org.luaj.vm2.lib.jse.JsePlatform
* @see org.luaj.vm2.lib.jme.JmePlatform
* @see IoLib
* @see org.luaj.vm2.lib.jse.JseIoLib
* @see <a href="http://www.lua.org/manual/5.2/manual.html#6.8">Lua 5.2 I/O Lib Reference</a>
* @see <a href="http://www.lua.org/manual/5.2/manual.html#6.8">Lua 5.2 I/O Lib
* Reference</a>
*/
public class JmeIoLib extends IoLib {
protected File wrapStdin() throws IOException {
return new FileImpl(globals.STDIN);
}
protected File wrapStdout() throws IOException {
return new FileImpl(globals.STDOUT);
}
protected File wrapStderr() throws IOException {
return new FileImpl(globals.STDERR);
}
protected File openFile( String filename, boolean readMode, boolean appendMode, boolean updateMode, boolean binaryMode ) throws IOException {
protected File openFile(String filename, boolean readMode, boolean appendMode, boolean updateMode,
boolean binaryMode) throws IOException {
String url = "file:///" + filename;
int mode = readMode? Connector.READ: Connector.READ_WRITE;
StreamConnection conn = (StreamConnection) Connector.open( url, mode );
File f = readMode?
new FileImpl(conn, conn.openInputStream(), null):
new FileImpl(conn, conn.openInputStream(), conn.openOutputStream());
int mode = readMode? Connector.READ: Connector.READ_WRITE;
StreamConnection conn = (StreamConnection) Connector.open(url, mode);
File f = readMode? new FileImpl(conn, conn.openInputStream(), null)
: new FileImpl(conn, conn.openInputStream(), conn.openOutputStream());
/*
if ( appendMode ) {
f.seek("end",0);
@@ -99,11 +112,11 @@ public class JmeIoLib extends IoLib {
*/
return f;
}
private static void notimplemented() throws IOException {
throw new IOException("not implemented");
}
protected File openProgram(String prog, String mode) throws IOException {
notimplemented();
return null;
@@ -113,52 +126,62 @@ public class JmeIoLib extends IoLib {
notimplemented();
return null;
}
private final class FileImpl extends File {
private final StreamConnection conn;
private final InputStream is;
private final OutputStream os;
private boolean closed = false;
private boolean nobuffer = false;
private int lookahead = -1;
private FileImpl( StreamConnection conn, InputStream is, OutputStream os ) {
private final InputStream is;
private final OutputStream os;
private boolean closed = false;
private boolean nobuffer = false;
private int lookahead = -1;
private FileImpl(StreamConnection conn, InputStream is, OutputStream os) {
this.conn = conn;
this.is = is;
this.os = os;
}
private FileImpl( InputStream i ) {
this( null, i, null );
private FileImpl(InputStream i) {
this(null, i, null);
}
private FileImpl( OutputStream o ) {
this( null, null, o );
private FileImpl(OutputStream o) {
this(null, null, o);
}
public String tojstring() {
return "file ("+this.hashCode()+")";
return "file (" + this.hashCode() + ")";
}
public boolean isstdfile() {
return conn == null;
}
public void close() throws IOException {
public void close() throws IOException {
closed = true;
if ( conn != null ) {
if (conn != null) {
conn.close();
}
}
public void flush() throws IOException {
if ( os != null )
if (os != null)
os.flush();
}
public void write(LuaString s) throws IOException {
if ( os != null )
os.write( s.m_bytes, s.m_offset, s.m_length );
if (os != null)
os.write(s.m_bytes, s.m_offset, s.m_length);
else
notimplemented();
if ( nobuffer )
if (nobuffer)
flush();
}
public boolean isclosed() {
return closed;
}
public int seek(String option, int pos) throws IOException {
/*
if ( conn != null ) {
@@ -177,6 +200,7 @@ public class JmeIoLib extends IoLib {
notimplemented();
return 0;
}
public void setvbuf(String mode, int size) {
nobuffer = "no".equals(mode);
}
@@ -185,22 +209,22 @@ public class JmeIoLib extends IoLib {
public int remaining() throws IOException {
return -1;
}
// peek ahead one character
public int peek() throws IOException {
if ( lookahead < 0 )
if (lookahead < 0)
lookahead = is.read();
return lookahead;
}
}
// return char if read, -1 if eof, throw IOException on other exception
public int read() throws IOException {
if ( lookahead >= 0 ) {
if (lookahead >= 0) {
int c = lookahead;
lookahead = -1;
return c;
}
if ( is != null )
if (is != null)
return is.read();
notimplemented();
return 0;
@@ -208,17 +232,17 @@ public class JmeIoLib extends IoLib {
// return number of bytes read if positive, -1 if eof, throws IOException
public int read(byte[] bytes, int offset, int length) throws IOException {
int n,i=0;
if (is!=null) {
if ( length > 0 && lookahead >= 0 ) {
int n, i = 0;
if (is != null) {
if (length > 0 && lookahead >= 0) {
bytes[offset] = (byte) lookahead;
lookahead = -1;
i += 1;
}
for ( ; i<length; ) {
for (; i < length;) {
n = is.read(bytes, offset+i, length-i);
if ( n < 0 )
return ( i > 0 ? i : -1 );
if (n < 0)
return (i > 0? i: -1);
i += n;
}
} else {

82
luaj-jme/src/main/java/org/luaj/vm2/lib/jme/JmePlatform.java
View File

@@ -37,40 +37,60 @@ import org.luaj.vm2.lib.ResourceFinder;
import org.luaj.vm2.lib.StringLib;
import org.luaj.vm2.lib.TableLib;
/** The {@link org.luaj.vm2.lib.jme.JmePlatform} class is a convenience class to standardize
* how globals tables are initialized for the JME platform.
/**
* The {@link org.luaj.vm2.lib.jme.JmePlatform} class is a convenience class to
* standardize how globals tables are initialized for the JME platform.
* <p>
* The JME platform, being limited, cannot implement all libraries in all aspects. The main limitations are
* The JME platform, being limited, cannot implement all libraries in all
* aspects. The main limitations are
* <ul>
* <li>Some math functions are not implemented, see {@link MathLib} for details</li>
* <li>Scripts are loaded via Class.getResourceAsStream(), see {@link BaseLib} for details</li>
* <li>OS functions execute(), remove(), rename(), and tmpname() vary, see {@link OsLib} for details</li>
* <li>I/O seek is not implemented, see {@link org.luaj.vm2.lib.jme.JmeIoLib} for details</li>
* <li>luajava is not available, see {@link org.luaj.vm2.lib.jse.LuajavaLib} for details</li>
* <li>Some math functions are not implemented, see {@link MathLib} for
* details</li>
* <li>Scripts are loaded via Class.getResourceAsStream(), see {@link BaseLib}
* for details</li>
* <li>OS functions execute(), remove(), rename(), and tmpname() vary, see
* {@link OsLib} for details</li>
* <li>I/O seek is not implemented, see {@link org.luaj.vm2.lib.jme.JmeIoLib}
* for details</li>
* <li>luajava is not available, see {@link org.luaj.vm2.lib.jse.LuajavaLib} for
* details</li>
* </ul>
* <p>
* It is used to allocate either a set of standard globals using
* It is used to allocate either a set of standard globals using
* {@link #standardGlobals()} or debug globals using {@link #debugGlobals()}
* <p>
* A simple example of initializing globals and using them from Java is:
* <pre> {@code
* Globals global = JmePlatform.standardGlobals();
* global.get("print").call(LuaValue.valueOf("hello, world"));
* } </pre>
*
* <pre>
* {
* &#64;code
* Globals global = JmePlatform.standardGlobals();
* global.get("print").call(LuaValue.valueOf("hello, world"));
* }
* </pre>
* <p>
* Once globals are created, a simple way to load and run a script is:
* <pre> {@code
*
* <pre>
* {@code
* LoadState.load( getClass().getResourceAsStream("main.lua"), "main.lua", globals ).call();
* } </pre>
* }
* </pre>
* <p>
* although {@code require} could also be used:
* <pre> {@code
* although {@code require} could also be used:
*
* <pre>
* {@code
* globals.get("require").call(LuaValue.valueOf("main"));
* } </pre>
* For this to succeed, the file "main.lua" must be a resource in the class path.
* See {@link BaseLib} for details on finding scripts using {@link ResourceFinder}.
* }
* </pre>
*
* For this to succeed, the file "main.lua" must be a resource in the class
* path. See {@link BaseLib} for details on finding scripts using
* {@link ResourceFinder}.
* <p>
* The standard globals will contain all standard libraries in their JME flavors:
* The standard globals will contain all standard libraries in their JME
* flavors:
* <ul>
* <li>{@link Globals}</li>
* <li>{@link BaseLib}</li>
@@ -83,12 +103,14 @@ import org.luaj.vm2.lib.TableLib;
* <li>{@link org.luaj.vm2.lib.jme.JmeIoLib}</li>
* <li>{@link OsLib}</li>
* </ul>
* In addition, the {@link LuaC} compiler is installed so lua files may be loaded in their source form.
* <p>
* The debug globals are simply the standard globals plus the {@code debug} library {@link DebugLib}.
* In addition, the {@link LuaC} compiler is installed so lua files may be
* loaded in their source form.
* <p>
* The debug globals are simply the standard globals plus the {@code debug}
* library {@link DebugLib}.
* <p>
* <p>
* The class ensures that initialization is done in the correct order.
* The class ensures that initialization is done in the correct order.
*
* @see Globals
* @see org.luaj.vm2.lib.jse.JsePlatform
@@ -116,12 +138,14 @@ public class JmePlatform {
globals.load(new JmeIoLib());
LoadState.install(globals);
LuaC.install(globals);
return globals;
return globals;
}
/** Create standard globals including the {@link DebugLib} library.
/**
* Create standard globals including the {@link DebugLib} library.
*
* @return Table of globals initialized with the standard JSE and debug libraries
* @return Table of globals initialized with the standard JSE and debug
* libraries
* @see #standardGlobals()
* @see org.luaj.vm2.lib.jse.JsePlatform
* @see org.luaj.vm2.lib.jme.JmePlatform