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Parser of RSQL / FIQL (query language for RESTful APIs) written in JavaCC.
The newest version!
/* Generated By:JavaCC: Do not edit this line. Parser.java */
package cz.jirutka.rsql.parser;
import cz.jirutka.rsql.parser.ast.*;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
final class Parser implements ParserConstants {
private NodesFactory factory;
public Parser(InputStream stream, String encoding, NodesFactory factory) {
this(stream, encoding);
this.factory = factory;
}
private String unescape(String s) {
if (s.indexOf('\u005c\u005c') < 0) {
return s;
}
final StringBuilder sb = new StringBuilder(s.length());
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == '\u005c\u005c') {
i++;
}
if (i < s.length()) {
sb.append(s.charAt(i));
}
}
return sb.toString();
}
final public Node Input() throws ParseException {
final Node node;
node = Or();
jj_consume_token(0);
{if (true) return node;}
throw new Error("Missing return statement in function");
}
final public Node Or() throws ParseException {
final List nodes = new ArrayList(3);
Node node;
node = And();
nodes.add(node);
label_1:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case OR:
;
break;
default:
jj_la1[0] = jj_gen;
break label_1;
}
jj_consume_token(OR);
node = And();
nodes.add(node);
}
{if (true) return nodes.size() != 1 ? factory.createLogicalNode(LogicalOperator.OR, nodes) : nodes.get(0);}
throw new Error("Missing return statement in function");
}
final public Node And() throws ParseException {
final List nodes = new ArrayList(3);
Node node;
node = Constraint();
nodes.add(node);
label_2:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case AND:
;
break;
default:
jj_la1[1] = jj_gen;
break label_2;
}
jj_consume_token(AND);
node = Constraint();
nodes.add(node);
}
{if (true) return nodes.size() != 1 ? factory.createLogicalNode(LogicalOperator.AND, nodes) : nodes.get(0);}
throw new Error("Missing return statement in function");
}
final public Node Constraint() throws ParseException {
final Node node;
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case LPAREN:
node = Group();
break;
case UNRESERVED_STR:
node = Comparison();
break;
default:
jj_la1[2] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
{if (true) return node;}
throw new Error("Missing return statement in function");
}
final public Node Group() throws ParseException {
final Node node;
jj_consume_token(LPAREN);
node = Or();
jj_consume_token(RPAREN);
{if (true) return node;}
throw new Error("Missing return statement in function");
}
final public ComparisonNode Comparison() throws ParseException {
final String sel;
final String op;
final List args;
sel = Selector();
op = Operator();
args = Arguments();
{if (true) return factory.createComparisonNode(op, sel, args);}
throw new Error("Missing return statement in function");
}
final public String Selector() throws ParseException {
token = jj_consume_token(UNRESERVED_STR);
{if (true) return token.image;}
throw new Error("Missing return statement in function");
}
final public String Operator() throws ParseException {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case COMP_FIQL:
token = jj_consume_token(COMP_FIQL);
break;
case COMP_ALT:
token = jj_consume_token(COMP_ALT);
break;
default:
jj_la1[3] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
{if (true) return token.image;}
throw new Error("Missing return statement in function");
}
final public List Arguments() throws ParseException {
final Object value;
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case LPAREN:
jj_consume_token(LPAREN);
value = CommaSepArguments();
jj_consume_token(RPAREN);
{if (true) return (List) value;}
break;
case UNRESERVED_STR:
case SINGLE_QUOTED_STR:
case DOUBLE_QUOTED_STR:
value = Argument();
{if (true) return Arrays.asList((String) value);}
break;
default:
jj_la1[4] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
throw new Error("Missing return statement in function");
}
final public List CommaSepArguments() throws ParseException {
final List list = new ArrayList(3);
String arg;
arg = Argument();
list.add(arg);
label_3:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case OR:
;
break;
default:
jj_la1[5] = jj_gen;
break label_3;
}
jj_consume_token(OR);
arg = Argument();
list.add(arg);
}
{if (true) return list;}
throw new Error("Missing return statement in function");
}
final public String Argument() throws ParseException {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case UNRESERVED_STR:
token = jj_consume_token(UNRESERVED_STR);
{if (true) return token.image;}
break;
case SINGLE_QUOTED_STR:
case DOUBLE_QUOTED_STR:
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case DOUBLE_QUOTED_STR:
token = jj_consume_token(DOUBLE_QUOTED_STR);
break;
case SINGLE_QUOTED_STR:
token = jj_consume_token(SINGLE_QUOTED_STR);
break;
default:
jj_la1[6] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
{if (true) return unescape(token.image.substring(1, token.image.length() -1));}
break;
default:
jj_la1[7] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
throw new Error("Missing return statement in function");
}
/** Generated Token Manager. */
public ParserTokenManager token_source;
SimpleCharStream jj_input_stream;
/** Current token. */
public Token token;
/** Next token. */
public Token jj_nt;
private int jj_ntk;
private int jj_gen;
final private int[] jj_la1 = new int[8];
static private int[] jj_la1_0;
static {
jj_la1_init_0();
}
private static void jj_la1_init_0() {
jj_la1_0 = new int[] {0x200,0x100,0x420,0x3000,0x4e0,0x200,0xc0,0xe0,};
}
/** Constructor with InputStream. */
public Parser(java.io.InputStream stream) {
this(stream, null);
}
/** Constructor with InputStream and supplied encoding */
public Parser(java.io.InputStream stream, String encoding) {
try { jj_input_stream = new SimpleCharStream(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
token_source = new ParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 8; i++) jj_la1[i] = -1;
}
/** Reinitialise. */
public void ReInit(java.io.InputStream stream) {
ReInit(stream, null);
}
/** Reinitialise. */
public void ReInit(java.io.InputStream stream, String encoding) {
try { jj_input_stream.ReInit(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
token_source.ReInit(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 8; i++) jj_la1[i] = -1;
}
/** Constructor. */
public Parser(java.io.Reader stream) {
jj_input_stream = new SimpleCharStream(stream, 1, 1);
token_source = new ParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 8; i++) jj_la1[i] = -1;
}
/** Reinitialise. */
public void ReInit(java.io.Reader stream) {
jj_input_stream.ReInit(stream, 1, 1);
token_source.ReInit(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 8; i++) jj_la1[i] = -1;
}
/** Constructor with generated Token Manager. */
public Parser(ParserTokenManager tm) {
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 8; i++) jj_la1[i] = -1;
}
/** Reinitialise. */
public void ReInit(ParserTokenManager tm) {
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 8; i++) jj_la1[i] = -1;
}
private Token jj_consume_token(int kind) throws ParseException {
Token oldToken;
if ((oldToken = token).next != null) token = token.next;
else token = token.next = token_source.getNextToken();
jj_ntk = -1;
if (token.kind == kind) {
jj_gen++;
return token;
}
token = oldToken;
jj_kind = kind;
throw generateParseException();
}
/** Get the next Token. */
final public Token getNextToken() {
if (token.next != null) token = token.next;
else token = token.next = token_source.getNextToken();
jj_ntk = -1;
jj_gen++;
return token;
}
/** Get the specific Token. */
final public Token getToken(int index) {
Token t = token;
for (int i = 0; i < index; i++) {
if (t.next != null) t = t.next;
else t = t.next = token_source.getNextToken();
}
return t;
}
private int jj_ntk() {
if ((jj_nt=token.next) == null)
return (jj_ntk = (token.next=token_source.getNextToken()).kind);
else
return (jj_ntk = jj_nt.kind);
}
private java.util.List jj_expentries = new java.util.ArrayList();
private int[] jj_expentry;
private int jj_kind = -1;
/** Generate ParseException. */
public ParseException generateParseException() {
jj_expentries.clear();
boolean[] la1tokens = new boolean[14];
if (jj_kind >= 0) {
la1tokens[jj_kind] = true;
jj_kind = -1;
}
for (int i = 0; i < 8; i++) {
if (jj_la1[i] == jj_gen) {
for (int j = 0; j < 32; j++) {
if ((jj_la1_0[i] & (1< © 2015 - 2025 Weber Informatics LLC | Privacy Policy