Mirror von
https://github.com/IntellectualSites/FastAsyncWorldEdit.git
synchronisiert 2024-12-24 18:10:08 +01:00
Moved the sub-processors into a new class, ParserProcessors.
Dieser Commit ist enthalten in:
TomyLobo
Ursprung
58be9d9be4
Commit
f28401aecc
@ -20,9 +20,6 @@
|
||||
package com.sk89q.worldedit.expression.parser;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collections;
|
||||
import java.util.HashMap;
|
||||
import java.util.Iterator;
|
||||
import java.util.LinkedList;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
@ -36,8 +33,6 @@ import com.sk89q.worldedit.expression.lexer.tokens.Token;
|
||||
import com.sk89q.worldedit.expression.runtime.Constant;
|
||||
import com.sk89q.worldedit.expression.runtime.Functions;
|
||||
import com.sk89q.worldedit.expression.runtime.Invokable;
|
||||
import com.sk89q.worldedit.expression.runtime.Operators;
|
||||
import com.sk89q.worldedit.expression.runtime.Sequence;
|
||||
|
||||
public class Parser {
|
||||
private final class NullToken extends Token {
|
||||
@ -145,292 +140,13 @@ public class Parser {
|
||||
}
|
||||
|
||||
if (isStatement) {
|
||||
return processStatement(halfProcessed);
|
||||
return ParserProcessors.processStatement(halfProcessed);
|
||||
}
|
||||
else {
|
||||
// process binary operators
|
||||
return processExpression(halfProcessed);
|
||||
return ParserProcessors.processExpression(halfProcessed);
|
||||
}
|
||||
}
|
||||
|
||||
private static Invokable processStatement(LinkedList<Identifiable> input) throws ParserException {
|
||||
LinkedList<Identifiable> lhs = new LinkedList<Identifiable>();
|
||||
LinkedList<Identifiable> rhs = new LinkedList<Identifiable>();
|
||||
boolean semicolonFound = false;
|
||||
|
||||
for (Identifiable identifiable : input) {
|
||||
if (semicolonFound) {
|
||||
rhs.addLast(identifiable);
|
||||
}
|
||||
else {
|
||||
if (identifiable.id() == ';') {
|
||||
semicolonFound = true;
|
||||
}
|
||||
else {
|
||||
lhs.addLast(identifiable);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (rhs.isEmpty()) {
|
||||
if (lhs.isEmpty()) {
|
||||
return new Sequence(semicolonFound ? input.get(0).getPosition() : -1);
|
||||
}
|
||||
|
||||
return processExpression(lhs);
|
||||
}
|
||||
else if (lhs.isEmpty()) {
|
||||
return processStatement(rhs);
|
||||
}
|
||||
else {
|
||||
assert(semicolonFound);
|
||||
|
||||
Invokable lhsInvokable = processExpression(lhs);
|
||||
Invokable rhsInvokable = processStatement(rhs);
|
||||
|
||||
return new Sequence(lhsInvokable.getPosition(), lhsInvokable, rhsInvokable);
|
||||
}
|
||||
}
|
||||
|
||||
private static Invokable processExpression(LinkedList<Identifiable> input) throws ParserException {
|
||||
return processBinaryOpsRA(input, binaryOpMapsRA.length - 1);
|
||||
}
|
||||
|
||||
private static final Map<String, String>[] binaryOpMapsLA;
|
||||
private static final Map<String, String>[] binaryOpMapsRA;
|
||||
|
||||
private static final Map<String, String> unaryOpMap = new HashMap<String, String>();
|
||||
static {
|
||||
final Object[][][] binaryOpsLA = {
|
||||
{
|
||||
{ "^", "pow" },
|
||||
{ "**", "pow" },
|
||||
},
|
||||
{
|
||||
{ "*", "mul" },
|
||||
{ "/", "div" },
|
||||
{ "%", "mod" },
|
||||
},
|
||||
{
|
||||
{ "+", "add" },
|
||||
{ "-", "sub" },
|
||||
},
|
||||
{
|
||||
{ "<<", "shl" },
|
||||
{ ">>", "shr" },
|
||||
},
|
||||
{
|
||||
{ "<", "lth" },
|
||||
{ ">", "gth" },
|
||||
{ "<=", "leq" },
|
||||
{ ">=", "geq" },
|
||||
},
|
||||
{
|
||||
{ "==", "equ" },
|
||||
{ "!=", "neq" },
|
||||
{ "~=", "near" },
|
||||
},
|
||||
{
|
||||
{ "&&", "and" },
|
||||
},
|
||||
{
|
||||
{ "||", "or" },
|
||||
},
|
||||
};
|
||||
final Object[][][] binaryOpsRA = {
|
||||
{
|
||||
{ "=", "ass" },
|
||||
{ "+=", "aadd" },
|
||||
{ "-=", "asub" },
|
||||
{ "*=", "amul" },
|
||||
{ "/=", "adiv" },
|
||||
{ "%=", "amod" },
|
||||
{ "^=", "aexp" },
|
||||
},
|
||||
};
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
final Map<String, String>[] lBinaryOpMapsLA = binaryOpMapsLA = new Map[binaryOpsLA.length];
|
||||
for (int i = 0; i < binaryOpsLA.length; ++i) {
|
||||
final Object[][] a = binaryOpsLA[i];
|
||||
switch (a.length) {
|
||||
case 0:
|
||||
lBinaryOpMapsLA[i] = Collections.emptyMap();
|
||||
break;
|
||||
|
||||
case 1:
|
||||
final Object[] first = a[0];
|
||||
lBinaryOpMapsLA[i] = Collections.singletonMap((String) first[0], (String) first[1]);
|
||||
break;
|
||||
|
||||
default:
|
||||
Map<String, String> m = lBinaryOpMapsLA[i] = new HashMap<String, String>();
|
||||
for (int j = 0; j < a.length; ++j) {
|
||||
final Object[] element = a[j];
|
||||
m.put((String) element[0], (String) element[1]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
final Map<String, String>[] lBinaryOpMapsRA = binaryOpMapsRA = new Map[binaryOpsRA.length];
|
||||
for (int i = 0; i < binaryOpsRA.length; ++i) {
|
||||
final Object[][] a = binaryOpsRA[i];
|
||||
switch (a.length) {
|
||||
case 0:
|
||||
lBinaryOpMapsRA[i] = Collections.emptyMap();
|
||||
break;
|
||||
|
||||
case 1:
|
||||
final Object[] first = a[0];
|
||||
lBinaryOpMapsRA[i] = Collections.singletonMap((String) first[0], (String) first[1]);
|
||||
break;
|
||||
|
||||
default:
|
||||
Map<String, String> m = lBinaryOpMapsRA[i] = new HashMap<String, String>();
|
||||
for (int j = 0; j < a.length; ++j) {
|
||||
final Object[] element = a[j];
|
||||
m.put((String) element[0], (String) element[1]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
unaryOpMap.put("-", "neg");
|
||||
unaryOpMap.put("!", "not");
|
||||
unaryOpMap.put("~", "inv");
|
||||
unaryOpMap.put("++", "inc");
|
||||
unaryOpMap.put("--", "dec");
|
||||
}
|
||||
|
||||
private static Invokable processBinaryOpsLA(LinkedList<Identifiable> input, int level) throws ParserException {
|
||||
if (level < 0) {
|
||||
return processUnaryOps(input);
|
||||
}
|
||||
|
||||
LinkedList<Identifiable> lhs = new LinkedList<Identifiable>();
|
||||
LinkedList<Identifiable> rhs = new LinkedList<Identifiable>();
|
||||
String operator = null;
|
||||
|
||||
for (Iterator<Identifiable> it = input.descendingIterator(); it.hasNext();) {
|
||||
Identifiable identifiable = it.next();
|
||||
if (operator == null) {
|
||||
rhs.addFirst(identifiable);
|
||||
|
||||
if (!(identifiable instanceof OperatorToken)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
operator = binaryOpMapsLA[level].get(((OperatorToken) identifiable).operator);
|
||||
if (operator == null) {
|
||||
continue;
|
||||
}
|
||||
|
||||
rhs.removeFirst();
|
||||
}
|
||||
else {
|
||||
lhs.addFirst(identifiable);
|
||||
}
|
||||
}
|
||||
|
||||
Invokable rhsInvokable = processBinaryOpsLA(rhs, level - 1);
|
||||
if (operator == null) return rhsInvokable;
|
||||
|
||||
Invokable lhsInvokable = processBinaryOpsLA(lhs, level);
|
||||
|
||||
try {
|
||||
return Operators.getOperator(input.get(0).getPosition(), operator, lhsInvokable, rhsInvokable);
|
||||
}
|
||||
catch (NoSuchMethodException e) {
|
||||
final Token operatorToken = (Token) input.get(lhs.size());
|
||||
throw new ParserException(operatorToken.getPosition(), "Couldn't find operator '" + operator + "'");
|
||||
}
|
||||
}
|
||||
|
||||
private static Invokable processBinaryOpsRA(LinkedList<Identifiable> input, int level) throws ParserException {
|
||||
if (level < 0) {
|
||||
return processTernaryOps(input);
|
||||
}
|
||||
|
||||
LinkedList<Identifiable> lhs = new LinkedList<Identifiable>();
|
||||
LinkedList<Identifiable> rhs = new LinkedList<Identifiable>();
|
||||
String operator = null;
|
||||
|
||||
for (Identifiable identifiable : input) {
|
||||
if (operator == null) {
|
||||
lhs.addLast(identifiable);
|
||||
|
||||
if (!(identifiable instanceof OperatorToken)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
operator = binaryOpMapsRA[level].get(((OperatorToken) identifiable).operator);
|
||||
if (operator == null) {
|
||||
continue;
|
||||
}
|
||||
|
||||
lhs.removeLast();
|
||||
}
|
||||
else {
|
||||
rhs.addLast(identifiable);
|
||||
}
|
||||
}
|
||||
|
||||
Invokable lhsInvokable = processBinaryOpsRA(lhs, level - 1);
|
||||
if (operator == null) return lhsInvokable;
|
||||
|
||||
Invokable rhsInvokable = processBinaryOpsRA(rhs, level);
|
||||
|
||||
try {
|
||||
return Operators.getOperator(input.get(0).getPosition(), operator, lhsInvokable, rhsInvokable);
|
||||
}
|
||||
catch (NoSuchMethodException e) {
|
||||
final Token operatorToken = (Token) input.get(lhs.size());
|
||||
throw new ParserException(operatorToken.getPosition(), "Couldn't find operator '" + operator + "'");
|
||||
}
|
||||
}
|
||||
|
||||
private static Invokable processTernaryOps(LinkedList<Identifiable> input) throws ParserException {
|
||||
return processBinaryOpsLA(input, binaryOpMapsLA.length - 1);
|
||||
}
|
||||
|
||||
private static Invokable processUnaryOps(LinkedList<Identifiable> input) throws ParserException {
|
||||
if (input.isEmpty()) {
|
||||
throw new ParserException(-1, "Expression missing.");
|
||||
}
|
||||
|
||||
Invokable ret = (Invokable) input.removeLast();
|
||||
while (!input.isEmpty()) {
|
||||
final Identifiable last = input.removeLast();
|
||||
final int lastPosition = last.getPosition();
|
||||
if (last instanceof PrefixOperator) {
|
||||
final String operator = ((PrefixOperator) last).operator;
|
||||
if (operator.equals("+")) {
|
||||
continue;
|
||||
}
|
||||
|
||||
String opName = unaryOpMap.get(operator);
|
||||
if (opName != null) {
|
||||
try {
|
||||
ret = Operators.getOperator(lastPosition, opName, ret);
|
||||
continue;
|
||||
}
|
||||
catch (NoSuchMethodException e) {
|
||||
throw new ParserException(lastPosition, "No such prefix operator: " + operator);
|
||||
}
|
||||
}
|
||||
}
|
||||
if (last instanceof Token) {
|
||||
throw new ParserException(lastPosition, "Extra token found in expression: " + last);
|
||||
}
|
||||
else if (last instanceof Invokable) {
|
||||
throw new ParserException(lastPosition, "Extra expression found: " + last);
|
||||
}
|
||||
else {
|
||||
throw new ParserException(lastPosition, "Extra element found: " + last);
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
private Token peek() {
|
||||
if (position >= tokens.size()) {
|
||||
|
||||
@ -0,0 +1,295 @@
|
||||
package com.sk89q.worldedit.expression.parser;
|
||||
|
||||
import java.util.Collections;
|
||||
import java.util.HashMap;
|
||||
import java.util.Iterator;
|
||||
import java.util.LinkedList;
|
||||
import java.util.Map;
|
||||
|
||||
import com.sk89q.worldedit.expression.Identifiable;
|
||||
import com.sk89q.worldedit.expression.lexer.tokens.OperatorToken;
|
||||
import com.sk89q.worldedit.expression.lexer.tokens.Token;
|
||||
import com.sk89q.worldedit.expression.runtime.Invokable;
|
||||
import com.sk89q.worldedit.expression.runtime.Operators;
|
||||
import com.sk89q.worldedit.expression.runtime.Sequence;
|
||||
|
||||
public final class ParserProcessors {
|
||||
static Invokable processStatement(LinkedList<Identifiable> input) throws ParserException {
|
||||
LinkedList<Identifiable> lhs = new LinkedList<Identifiable>();
|
||||
LinkedList<Identifiable> rhs = new LinkedList<Identifiable>();
|
||||
boolean semicolonFound = false;
|
||||
|
||||
for (Identifiable identifiable : input) {
|
||||
if (semicolonFound) {
|
||||
rhs.addLast(identifiable);
|
||||
}
|
||||
else {
|
||||
if (identifiable.id() == ';') {
|
||||
semicolonFound = true;
|
||||
}
|
||||
else {
|
||||
lhs.addLast(identifiable);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (rhs.isEmpty()) {
|
||||
if (lhs.isEmpty()) {
|
||||
return new Sequence(semicolonFound ? input.get(0).getPosition() : -1);
|
||||
}
|
||||
|
||||
return processExpression(lhs);
|
||||
}
|
||||
else if (lhs.isEmpty()) {
|
||||
return processStatement(rhs);
|
||||
}
|
||||
else {
|
||||
assert(semicolonFound);
|
||||
|
||||
Invokable lhsInvokable = processExpression(lhs);
|
||||
Invokable rhsInvokable = processStatement(rhs);
|
||||
|
||||
return new Sequence(lhsInvokable.getPosition(), lhsInvokable, rhsInvokable);
|
||||
}
|
||||
}
|
||||
|
||||
static Invokable processExpression(LinkedList<Identifiable> input) throws ParserException {
|
||||
return processBinaryOpsRA(input, binaryOpMapsRA.length - 1);
|
||||
}
|
||||
|
||||
private static final Map<String, String>[] binaryOpMapsLA;
|
||||
private static final Map<String, String>[] binaryOpMapsRA;
|
||||
|
||||
private static final Map<String, String> unaryOpMap = new HashMap<String, String>();
|
||||
static {
|
||||
final Object[][][] binaryOpsLA = {
|
||||
{
|
||||
{ "^", "pow" },
|
||||
{ "**", "pow" },
|
||||
},
|
||||
{
|
||||
{ "*", "mul" },
|
||||
{ "/", "div" },
|
||||
{ "%", "mod" },
|
||||
},
|
||||
{
|
||||
{ "+", "add" },
|
||||
{ "-", "sub" },
|
||||
},
|
||||
{
|
||||
{ "<<", "shl" },
|
||||
{ ">>", "shr" },
|
||||
},
|
||||
{
|
||||
{ "<", "lth" },
|
||||
{ ">", "gth" },
|
||||
{ "<=", "leq" },
|
||||
{ ">=", "geq" },
|
||||
},
|
||||
{
|
||||
{ "==", "equ" },
|
||||
{ "!=", "neq" },
|
||||
{ "~=", "near" },
|
||||
},
|
||||
{
|
||||
{ "&&", "and" },
|
||||
},
|
||||
{
|
||||
{ "||", "or" },
|
||||
},
|
||||
};
|
||||
final Object[][][] binaryOpsRA = {
|
||||
{
|
||||
{ "=", "ass" },
|
||||
{ "+=", "aadd" },
|
||||
{ "-=", "asub" },
|
||||
{ "*=", "amul" },
|
||||
{ "/=", "adiv" },
|
||||
{ "%=", "amod" },
|
||||
{ "^=", "aexp" },
|
||||
},
|
||||
};
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
final Map<String, String>[] lBinaryOpMapsLA = binaryOpMapsLA = new Map[binaryOpsLA.length];
|
||||
for (int i = 0; i < binaryOpsLA.length; ++i) {
|
||||
final Object[][] a = binaryOpsLA[i];
|
||||
switch (a.length) {
|
||||
case 0:
|
||||
lBinaryOpMapsLA[i] = Collections.emptyMap();
|
||||
break;
|
||||
|
||||
case 1:
|
||||
final Object[] first = a[0];
|
||||
lBinaryOpMapsLA[i] = Collections.singletonMap((String) first[0], (String) first[1]);
|
||||
break;
|
||||
|
||||
default:
|
||||
Map<String, String> m = lBinaryOpMapsLA[i] = new HashMap<String, String>();
|
||||
for (int j = 0; j < a.length; ++j) {
|
||||
final Object[] element = a[j];
|
||||
m.put((String) element[0], (String) element[1]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
final Map<String, String>[] lBinaryOpMapsRA = binaryOpMapsRA = new Map[binaryOpsRA.length];
|
||||
for (int i = 0; i < binaryOpsRA.length; ++i) {
|
||||
final Object[][] a = binaryOpsRA[i];
|
||||
switch (a.length) {
|
||||
case 0:
|
||||
lBinaryOpMapsRA[i] = Collections.emptyMap();
|
||||
break;
|
||||
|
||||
case 1:
|
||||
final Object[] first = a[0];
|
||||
lBinaryOpMapsRA[i] = Collections.singletonMap((String) first[0], (String) first[1]);
|
||||
break;
|
||||
|
||||
default:
|
||||
Map<String, String> m = lBinaryOpMapsRA[i] = new HashMap<String, String>();
|
||||
for (int j = 0; j < a.length; ++j) {
|
||||
final Object[] element = a[j];
|
||||
m.put((String) element[0], (String) element[1]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
unaryOpMap.put("-", "neg");
|
||||
unaryOpMap.put("!", "not");
|
||||
unaryOpMap.put("~", "inv");
|
||||
unaryOpMap.put("++", "inc");
|
||||
unaryOpMap.put("--", "dec");
|
||||
}
|
||||
|
||||
private static Invokable processBinaryOpsLA(LinkedList<Identifiable> input, int level) throws ParserException {
|
||||
if (level < 0) {
|
||||
return processUnaryOps(input);
|
||||
}
|
||||
|
||||
LinkedList<Identifiable> lhs = new LinkedList<Identifiable>();
|
||||
LinkedList<Identifiable> rhs = new LinkedList<Identifiable>();
|
||||
String operator = null;
|
||||
|
||||
for (Iterator<Identifiable> it = input.descendingIterator(); it.hasNext();) {
|
||||
Identifiable identifiable = it.next();
|
||||
if (operator == null) {
|
||||
rhs.addFirst(identifiable);
|
||||
|
||||
if (!(identifiable instanceof OperatorToken)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
operator = binaryOpMapsLA[level].get(((OperatorToken) identifiable).operator);
|
||||
if (operator == null) {
|
||||
continue;
|
||||
}
|
||||
|
||||
rhs.removeFirst();
|
||||
}
|
||||
else {
|
||||
lhs.addFirst(identifiable);
|
||||
}
|
||||
}
|
||||
|
||||
Invokable rhsInvokable = processBinaryOpsLA(rhs, level - 1);
|
||||
if (operator == null) return rhsInvokable;
|
||||
|
||||
Invokable lhsInvokable = processBinaryOpsLA(lhs, level);
|
||||
|
||||
try {
|
||||
return Operators.getOperator(input.get(0).getPosition(), operator, lhsInvokable, rhsInvokable);
|
||||
}
|
||||
catch (NoSuchMethodException e) {
|
||||
final Token operatorToken = (Token) input.get(lhs.size());
|
||||
throw new ParserException(operatorToken.getPosition(), "Couldn't find operator '" + operator + "'");
|
||||
}
|
||||
}
|
||||
|
||||
private static Invokable processBinaryOpsRA(LinkedList<Identifiable> input, int level) throws ParserException {
|
||||
if (level < 0) {
|
||||
return processTernaryOps(input);
|
||||
}
|
||||
|
||||
LinkedList<Identifiable> lhs = new LinkedList<Identifiable>();
|
||||
LinkedList<Identifiable> rhs = new LinkedList<Identifiable>();
|
||||
String operator = null;
|
||||
|
||||
for (Identifiable identifiable : input) {
|
||||
if (operator == null) {
|
||||
lhs.addLast(identifiable);
|
||||
|
||||
if (!(identifiable instanceof OperatorToken)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
operator = binaryOpMapsRA[level].get(((OperatorToken) identifiable).operator);
|
||||
if (operator == null) {
|
||||
continue;
|
||||
}
|
||||
|
||||
lhs.removeLast();
|
||||
}
|
||||
else {
|
||||
rhs.addLast(identifiable);
|
||||
}
|
||||
}
|
||||
|
||||
Invokable lhsInvokable = processBinaryOpsRA(lhs, level - 1);
|
||||
if (operator == null) return lhsInvokable;
|
||||
|
||||
Invokable rhsInvokable = processBinaryOpsRA(rhs, level);
|
||||
|
||||
try {
|
||||
return Operators.getOperator(input.get(0).getPosition(), operator, lhsInvokable, rhsInvokable);
|
||||
}
|
||||
catch (NoSuchMethodException e) {
|
||||
final Token operatorToken = (Token) input.get(lhs.size());
|
||||
throw new ParserException(operatorToken.getPosition(), "Couldn't find operator '" + operator + "'");
|
||||
}
|
||||
}
|
||||
|
||||
private static Invokable processTernaryOps(LinkedList<Identifiable> input) throws ParserException {
|
||||
return processBinaryOpsLA(input, binaryOpMapsLA.length - 1);
|
||||
}
|
||||
|
||||
private static Invokable processUnaryOps(LinkedList<Identifiable> input) throws ParserException {
|
||||
if (input.isEmpty()) {
|
||||
throw new ParserException(-1, "Expression missing.");
|
||||
}
|
||||
|
||||
Invokable ret = (Invokable) input.removeLast();
|
||||
while (!input.isEmpty()) {
|
||||
final Identifiable last = input.removeLast();
|
||||
final int lastPosition = last.getPosition();
|
||||
if (last instanceof PrefixOperator) {
|
||||
final String operator = ((PrefixOperator) last).operator;
|
||||
if (operator.equals("+")) {
|
||||
continue;
|
||||
}
|
||||
|
||||
String opName = unaryOpMap.get(operator);
|
||||
if (opName != null) {
|
||||
try {
|
||||
ret = Operators.getOperator(lastPosition, opName, ret);
|
||||
continue;
|
||||
}
|
||||
catch (NoSuchMethodException e) {
|
||||
throw new ParserException(lastPosition, "No such prefix operator: " + operator);
|
||||
}
|
||||
}
|
||||
}
|
||||
if (last instanceof Token) {
|
||||
throw new ParserException(lastPosition, "Extra token found in expression: " + last);
|
||||
}
|
||||
else if (last instanceof Invokable) {
|
||||
throw new ParserException(lastPosition, "Extra expression found: " + last);
|
||||
}
|
||||
else {
|
||||
throw new ParserException(lastPosition, "Extra element found: " + last);
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
Laden…
In neuem Issue referenzieren
Einen Benutzer sperren