bonkmaykr/firestar
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add fscript parser implementation (unused and unfinished)

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Wirlaburla 2024-07-20 00:58:21 -05:00
parent a7e3815f17
commit 6401deccc4
3 changed files with 414 additions and 33 deletions
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20
firestar/src/main/java/FirescriptFormatException.java Normal file
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@ -0,0 +1,20 @@
/*
* Firestar Mod Manager
* Copyright (C) 2024 bonkmaykr
*
* 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 https://www.gnu.org/licenses/.
*/
public class FirescriptFormatException extends Exception { }

137
firestar/src/main/java/ReplacingInputStream.java Normal file
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@ -0,0 +1,137 @@
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Queue;
/**
* Created by simon on 8/29/17.
* Copyright 2017 Simon Haoran Liang
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
* associated documentation files (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
* LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
* NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
public class ReplacingInputStream extends FilterInputStream {
private Queue<Integer> inQueue, outQueue;
private final byte[] search, replacement;
private boolean caseSensitive = true;
public ReplacingInputStream(InputStream in, String search, String replacement) {
super(in);
this.inQueue = new LinkedList<>();
this.outQueue = new LinkedList<>();
this.search = search.getBytes();
this.replacement = replacement.getBytes();
}
public ReplacingInputStream(InputStream in, String search, String replacement, boolean caseSensitive) {
super(in);
this.inQueue = new LinkedList<>();
this.outQueue = new LinkedList<>();
this.search = search.getBytes();
this.replacement = replacement.getBytes();
this.caseSensitive = caseSensitive;
}
private boolean isMatchFound() {
Iterator<Integer> iterator = inQueue.iterator();
for (byte b : search) {
if (!iterator.hasNext()) return false;
Integer i = iterator.next();
if (caseSensitive && b != i) return false;
else if (Character.toLowerCase(b) != Character.toLowerCase(i.byteValue())) return false;
}
return true;
}
private void readAhead() throws IOException {
// Work up some look-ahead.
while (inQueue.size() < search.length) {
int next = super.read();
inQueue.offer(next);
if (next == -1) {
break;
}
}
}
@Override
public int read() throws IOException {
// Next byte already determined.
while (outQueue.isEmpty()) {
readAhead();
if (isMatchFound()) {
for (byte a : search) {
inQueue.remove();
}
for (byte b : replacement) {
outQueue.offer((int) b);
}
} else {
outQueue.add(inQueue.remove());
}
}
return outQueue.remove();
}
@Override
public int read(byte b[]) throws IOException {
return read(b, 0, b.length);
}
// copied straight from InputStream inplementation, just needed to to use `read()` from this class
@Override
public int read(byte b[], int off, int len) throws IOException {
if (b == null) {
throw new NullPointerException();
} else if (off < 0 || len < 0 || len > b.length - off) {
throw new IndexOutOfBoundsException();
} else if (len == 0) {
return 0;
}
int c = read();
if (c == -1) {
return -1;
}
b[off] = (byte)c;
int i = 1;
try {
for (; i < len ; i++) {
c = read();
if (c == -1) {
break;
}
b[off + i] = (byte)c;
}
} catch (IOException ee) {
}
return i;
}
}

288
firestar/src/main/java/Rizzo.java
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@ -16,18 +16,212 @@
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
import java.io.BufferedInputStream;
import java.io.BufferedWriter;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.StringTokenizer;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
public class Rizzo {
private Scanner scanner;
public void Rizzo(File infile) {
public Rizzo(File infile) throws FileNotFoundException, FirescriptFormatException {
scanner = new Scanner(infile);
parseScript(null);
}
public static String[] translateCommandline(String toProcess) {
if (toProcess == null || toProcess.length() == 0) {
private void parseScript(Object context) throws FirescriptFormatException {
while (scanner.hasNextLine()) {
String line = scanner.nextLine().trim();
if (line.startsWith("#") || line.length() < 1) continue;
if (!parseArgs(translateCommandline(line), context)) break;
}
}
private boolean parseArgs(String[] args, Object context) throws FirescriptFormatException {
if (args.length > 0) {
if (context == null) {
System.out.println("Parsing Command: " + Arrays.toString(args));
if (args[0].equalsIgnoreCase("file")) {
File newCtx = new File(Main.inpath + "temp/" + args[1]);
System.out.println("Calling new parse: " + Arrays.toString(Arrays.copyOfRange(args, 2, args.length)));
parseArgs(Arrays.copyOfRange(args, 2, args.length), newCtx);
}
} else {
System.out.println("Parsing Command: " + Arrays.toString(args) + " with context: " + context.getClass().getName() + "@" + context.hashCode());
if (args[0].equals("{")) {
System.out.println("New context parse: " + context.getClass().getName() + "@" + context.hashCode());
parseScript(context);
} else if (args[0].equals("}")) {
System.out.println("Ending context block: " + context.getClass().getName() + "@" + context.hashCode());
return false;
} else if (context instanceof File file) {
if (args[0].equalsIgnoreCase("delete")) {
System.out.println("Deleting: " + file.getPath());
if (file.getAbsolutePath().startsWith(Main.inpath + "temp/"))
file.delete();
} else if (args[0].equalsIgnoreCase("xml")) {
try {
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
// Mmmm, love me some INVALID XML corrections
ReplacingInputStream ris = new ReplacingInputStream(new FileInputStream(file), "&", "&amp;");
Document doc = docBuilder.parse(ris);
parseArgs(Arrays.copyOfRange(args, 1, args.length), doc);
try {
FileOutputStream output = new FileOutputStream(file);
Transformer transformer = TransformerFactory.newInstance().newTransformer();
StreamResult result = new StreamResult(new StringWriter());
DOMSource source = new DOMSource(doc);
transformer.transform(source, result);
// Look ma, I'm breaking XML standards!
String xmlString = result.getWriter().toString()
.replace("&amp;", "&")
.replace("&#9;", "\t")
.replace("&#8;", "\b")
.replace("&#10;", "\n")
.replace("&#13;", "\r")
.replace("&#12;", "\f");
PrintStream ps = new PrintStream(output);
ps.print(xmlString);
ps.close();
} catch (TransformerException ex) {
Logger.getLogger(Rizzo.class.getName()).log(Level.SEVERE, null, ex);
}
} catch (SAXException | IOException | ParserConfigurationException ex) {
Logger.getLogger(Rizzo.class.getName()).log(Level.SEVERE, null, ex);
}
} else if (args[0].equalsIgnoreCase("str") || args[0].equalsIgnoreCase("xstr")) {
try {
FileInputStream fis = new FileInputStream(file);
ByteArrayInputStream bais = new ByteArrayInputStream(fis.readAllBytes());
fis.close();
FileOutputStream fos = new FileOutputStream(file);
if (args[1].equalsIgnoreCase("append")) {
bais.transferTo(fos);
for (int s = 0; s < args[2].length(); s++) {
char c = args[2].charAt(s);
fos.write(c);
}
} else if (args[1].equalsIgnoreCase("replace") || args[1].equalsIgnoreCase("delete")) {
String replacement = "";
if (args[1].equalsIgnoreCase("replace")) replacement = args[3];
ReplacingInputStream ris;
if (args[0].equalsIgnoreCase("xstr")) ris = new ReplacingInputStream(bais, args[2], replacement, false);
else ris = new ReplacingInputStream(bais, args[2], replacement);
ris.transferTo(fos);
ris.close();
}
fos.flush();
fos.close();
} catch (IOException ex) {
Logger.getLogger(Rizzo.class.getName()).log(Level.SEVERE, null, ex);
}
}
} else if (context instanceof Document document) {
if (args[0].equalsIgnoreCase("modify")) {
Element elem = traverse(document, args[1]);
parseArgs(Arrays.copyOfRange(args, 2, args.length), elem);
} else if (args[0].equalsIgnoreCase("create")) {
String newTag = args[1].substring(args[1].lastIndexOf(".")+1);
String newID = "";
if (newTag.contains("#")) {
newID = newTag.substring(newTag.indexOf("#")+1);
newTag = newTag.substring(0, newTag.indexOf("#"));
}
Element newElem = document.createElement(newTag);
if (newID != null && newID.length() > 0) newElem.setAttribute("id", newID);
traverse(document, args[1].substring(0, args[1].lastIndexOf("."))).appendChild(newElem);
parseArgs(Arrays.copyOfRange(args, 2, args.length), newElem);
} else if (args[0].equalsIgnoreCase("delete")) {
Element elem = traverse(document, args[1]);
elem.getParentNode().removeChild(elem);
}
} else if (context instanceof Element element) {
if (args[0].equalsIgnoreCase("set")) {
if (args[1].equalsIgnoreCase("attribute"))
element.setAttribute(args[2], args[3]);
else if (args[1].equalsIgnoreCase("value"))
element.setNodeValue(args[2]);
}
}
}
}
return true;
}
private Element traverse(Document doc, String selector) throws FirescriptFormatException {
if (selector == null || selector.length() == 0 || doc == null) {
return null;
}
String[] elems = selector.split("\\.");
Element parent = null;
for (String tag : elems) {
Element newParent = null;
int index = 0;
if (tag.contains("[")) {
index = Integer.parseInt(tag.substring(tag.indexOf("[")+1, tag.lastIndexOf("]")));
tag = tag.substring(0, tag.indexOf("["));
}
String id = "";
if (tag.contains("#")) {
id = tag.substring(tag.indexOf("#")+1);
tag = tag.substring(0, tag.indexOf("#"));
}
if (id.length() > 0) {
NodeList ns;
if (parent != null) ns = parent.getElementsByTagName(tag);
else ns = doc.getElementsByTagName(tag);
for (int i = 0; i < ns.getLength(); i++) {
Node n = ns.item(i);
if (((Element)n).getAttribute("id").equals(id)) {
newParent = (Element)n;
break;
}
}
} else {
if (parent != null) newParent = (Element)parent.getElementsByTagName(tag).item(index);
else newParent = (Element)doc.getElementsByTagName(tag).item(index);
}
if (newParent == null) throw new FirescriptFormatException();
else parent = newParent;
}
return parent;
}
private static String[] translateCommandline(String line) {
if (line == null || line.length() == 0) {
return new String[0];
}
@ -35,52 +229,82 @@ public class Rizzo {
final int inQuote = 1;
final int inDoubleQuote = 2;
int state = normal;
final StringTokenizer tok = new StringTokenizer(toProcess, "\"\' ", true);
final ArrayList<String> result = new ArrayList<String>();
final StringBuilder current = new StringBuilder();
boolean lastTokenHasBeenQuoted = false;
boolean lastTokenWasEscaped = false;
while (tok.hasMoreTokens()) {
String nextTok = tok.nextToken();
for (int i = 0; i < line.length(); i++) {
char nextTok = line.charAt(i);
switch (state) {
case inQuote:
if ("\'".equals(nextTok)) {
case inQuote -> {
if (nextTok == '\\') {
lastTokenWasEscaped = true;
} else if (nextTok == '\'' && !lastTokenWasEscaped) {
lastTokenHasBeenQuoted = true;
state = normal;
} else {
current.append(nextTok);
}
break;
case inDoubleQuote:
if ("\"".equals(nextTok)) {
lastTokenHasBeenQuoted = true;
state = normal;
} else {
current.append(nextTok);
}
break;
default:
if ("\'".equals(nextTok)) {
state = inQuote;
} else if ("\"".equals(nextTok)) {
state = inDoubleQuote;
} else if (" ".equals(nextTok)) {
if (lastTokenHasBeenQuoted || current.length() != 0) {
result.add(current.toString());
current.setLength(0);
if (lastTokenWasEscaped) {
if (nextTok == 't') nextTok = '\t';
if (nextTok == 'b') nextTok = '\b';
if (nextTok == 'n') nextTok = '\n';
if (nextTok == 'r') nextTok = '\r';
if (nextTok == 'f') nextTok = '\f';
}
} else {
current.append(nextTok);
lastTokenWasEscaped = false;
}
}
case inDoubleQuote -> {
if (nextTok == '\\') {
lastTokenWasEscaped = true;
} else if (nextTok == '\"' && !lastTokenWasEscaped) {
lastTokenHasBeenQuoted = true;
state = normal;
} else {
if (lastTokenWasEscaped) {
if (nextTok == 't') nextTok = '\t';
if (nextTok == 'b') nextTok = '\b';
if (nextTok == 'n') nextTok = '\n';
if (nextTok == 'r') nextTok = '\r';
if (nextTok == 'f') nextTok = '\f';
}
current.append(nextTok);
lastTokenWasEscaped = false;
}
}
default -> {
switch (nextTok) {
case '\\' -> lastTokenWasEscaped = true;
case '\'' -> state = inQuote;
case '\"' -> state = inDoubleQuote;
case ' ' -> {
if (!lastTokenWasEscaped && (lastTokenHasBeenQuoted || current.length() != 0)) {
result.add(current.toString());
current.setLength(0);
}
}
default -> {
if (lastTokenWasEscaped) {
if (nextTok == 't') nextTok = '\t';
if (nextTok == 'b') nextTok = '\b';
if (nextTok == 'n') nextTok = '\n';
if (nextTok == 'r') nextTok = '\r';
if (nextTok == 'f') nextTok = '\f';
lastTokenWasEscaped = false;
}
current.append(nextTok);
}
}
lastTokenHasBeenQuoted = false;
break;
}
}
}
if (lastTokenHasBeenQuoted || current.length() != 0) {
result.add(current.toString());
}
if (state == inQuote || state == inDoubleQuote) {
throw new RuntimeException("unbalanced quotes in " + toProcess);
throw new RuntimeException("unbalanced quotes in " + line);
}
return result.toArray(new String[result.size()]);
}