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Turn on LuaParser error reporting.

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This commit is contained in:
James Roseborough
2012-09-01 16:51:45 +00:00
parent 24c476b072
commit 04faa79853
3 changed files with 216 additions and 38 deletions
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41
examples/jse/SampleParser.java
View File

@@ -14,20 +14,6 @@ import org.luaj.vm2.parser.*;
public class SampleParser { public class SampleParser {
// Sample ParseException subclass that stores the file, line, and column info.
static public class FileLineColumnParseException extends ParseException {
private static final long serialVersionUID = 1L;
public final String file;
public final int line;
public final int column;
public FileLineColumnParseException(String file, int line, int column, String message) {
super(message);
this.file = file;
this.line = line;
this.column = column;
}
}
static public void main(String[] args) { static public void main(String[] args) {
if (args.length == 0) { if (args.length == 0) {
System.out.println("usage: SampleParser luafile"); System.out.println("usage: SampleParser luafile");
@@ -38,16 +24,7 @@ public class SampleParser {
// Create a custom LuaParser subclass that intercepts parse exceptions and // Create a custom LuaParser subclass that intercepts parse exceptions and
// extracts the line and column number information from the parse token. // extracts the line and column number information from the parse token.
LuaParser parser = new LuaParser(new FileInputStream(file)) { LuaParser parser = new LuaParser(new FileInputStream(file));
/** Generate ParseException. */
public ParseException generateParseException() {
Token errortok = token.next;
int line = errortok.beginLine;
int column = errortok.beginColumn;
String mess = (errortok.kind == 0) ? tokenImage[0] : errortok.image;
return new FileLineColumnParseException(file, line, column, mess);
}
};
// Perform the parsing. // Perform the parsing.
Chunk chunk = parser.Chunk(); Chunk chunk = parser.Chunk();
@@ -77,16 +54,14 @@ public class SampleParser {
} }
} ); } );
} catch ( FileLineColumnParseException e ) {
System.out.println( "Parse failed at identified line, column: "+e );
System.out.println( "File: "+e.file );
System.out.println( "Line: "+e.line );
System.out.println( "Column: "+e.column );
System.out.println( "Message: "+e.getMessage() );
} catch ( ParseException e ) { } catch ( ParseException e ) {
System.out.println( "Parse failed at unknown location: "+e ); System.out.println( "Parse failed : "+e );
e.printStackTrace(); System.out.println( "Begin Line: "+e.currentToken.beginColumn );
System.out.println( "Begin Column: "+e.currentToken.endColumn );
System.out.println( "End Line: "+e.currentToken.beginColumn );
System.out.println( "End Column: "+e.currentToken.endColumn );
System.out.println( "Token Image: '"+e.currentToken.image+"'" );
System.out.println( "Message: "+e.getMessage() );
} catch ( IOException e ) { } catch ( IOException e ) {
System.out.println( "IOException occurred: "+e ); System.out.println( "IOException occurred: "+e );

2
grammar/LuaParser.jj
View File

@@ -27,7 +27,7 @@
options { options {
STATIC = false; STATIC = false;
JDK_VERSION = "1.3"; JDK_VERSION = "1.3";
ERROR_REPORTING = false; ERROR_REPORTING = true;
UNICODE_INPUT = true; UNICODE_INPUT = true;
DEBUG_LOOKAHEAD = false; DEBUG_LOOKAHEAD = false;
DEBUG_PARSER = false; DEBUG_PARSER = false;

211
src/jse/org/luaj/vm2/parser/LuaParser.java
View File

@@ -59,6 +59,7 @@ public class LuaParser implements LuaParserConstants {
token_source.SwitchTo(IN_COMMENT); token_source.SwitchTo(IN_COMMENT);
break; break;
default: default:
jj_la1[0] = jj_gen;
; ;
} }
b = Block(); b = Block();
@@ -90,6 +91,7 @@ public class LuaParser implements LuaParserConstants {
; ;
break; break;
default: default:
jj_la1[1] = jj_gen;
break label_1; break label_1;
} }
s = Stat(); s = Stat();
@@ -101,6 +103,7 @@ public class LuaParser implements LuaParserConstants {
b.add(s); b.add(s);
break; break;
default: default:
jj_la1[2] = jj_gen;
; ;
} }
L(b,i); {if (true) return b;} L(b,i); {if (true) return b;}
@@ -161,6 +164,7 @@ public class LuaParser implements LuaParserConstants {
L(s,i); {if (true) return s;} L(s,i); {if (true) return s;}
break; break;
default: default:
jj_la1[5] = jj_gen;
if (jj_2_1(3)) { if (jj_2_1(3)) {
jj_consume_token(FOR); jj_consume_token(FOR);
n = jj_consume_token(NAME); n = jj_consume_token(NAME);
@@ -174,6 +178,7 @@ public class LuaParser implements LuaParserConstants {
e3 = Exp(); e3 = Exp();
break; break;
default: default:
jj_la1[3] = jj_gen;
; ;
} }
jj_consume_token(DO); jj_consume_token(DO);
@@ -199,6 +204,7 @@ public class LuaParser implements LuaParserConstants {
s=Stat.functiondef(fn,fb); L(s,i); {if (true) return s;} s=Stat.functiondef(fn,fb); L(s,i); {if (true) return s;}
break; break;
default: default:
jj_la1[6] = jj_gen;
if (jj_2_2(2)) { if (jj_2_2(2)) {
jj_consume_token(LOCAL); jj_consume_token(LOCAL);
jj_consume_token(FUNCTION); jj_consume_token(FUNCTION);
@@ -216,6 +222,7 @@ public class LuaParser implements LuaParserConstants {
el = ExpList(); el = ExpList();
break; break;
default: default:
jj_la1[4] = jj_gen;
; ;
} }
s=Stat.localassignment(nl,el); L(s,i); {if (true) return s;} s=Stat.localassignment(nl,el); L(s,i); {if (true) return s;}
@@ -226,6 +233,7 @@ public class LuaParser implements LuaParserConstants {
L(s,i); {if (true) return s;} L(s,i); {if (true) return s;}
break; break;
default: default:
jj_la1[7] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -252,6 +260,7 @@ public class LuaParser implements LuaParserConstants {
; ;
break; break;
default: default:
jj_la1[8] = jj_gen;
break label_2; break label_2;
} }
jj_consume_token(ELSEIF); jj_consume_token(ELSEIF);
@@ -269,6 +278,7 @@ public class LuaParser implements LuaParserConstants {
b3 = Block(); b3 = Block();
break; break;
default: default:
jj_la1[9] = jj_gen;
; ;
} }
jj_consume_token(END); jj_consume_token(END);
@@ -304,6 +314,7 @@ public class LuaParser implements LuaParserConstants {
el = ExpList(); el = ExpList();
break; break;
default: default:
jj_la1[10] = jj_gen;
; ;
} }
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) { switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
@@ -311,6 +322,7 @@ public class LuaParser implements LuaParserConstants {
jj_consume_token(70); jj_consume_token(70);
break; break;
default: default:
jj_la1[11] = jj_gen;
; ;
} }
s=Stat.returnstat(el); L(s,i); {if (true) return s;} s=Stat.returnstat(el); L(s,i); {if (true) return s;}
@@ -337,6 +349,7 @@ public class LuaParser implements LuaParserConstants {
s = Assign(assertvarexp(p)); s = Assign(assertvarexp(p));
break; break;
default: default:
jj_la1[12] = jj_gen;
; ;
} }
if (s==null) { s=Stat.functioncall(assertfunccall(p)); } L(s,i); {if (true) return s;} if (s==null) { s=Stat.functioncall(assertfunccall(p)); } L(s,i); {if (true) return s;}
@@ -357,6 +370,7 @@ public class LuaParser implements LuaParserConstants {
; ;
break; break;
default: default:
jj_la1[13] = jj_gen;
break label_3; break label_3;
} }
jj_consume_token(72); jj_consume_token(72);
@@ -388,6 +402,7 @@ public class LuaParser implements LuaParserConstants {
; ;
break; break;
default: default:
jj_la1[14] = jj_gen;
break label_4; break label_4;
} }
jj_consume_token(73); jj_consume_token(73);
@@ -401,6 +416,7 @@ public class LuaParser implements LuaParserConstants {
f.method=n.image; f.method=n.image;
break; break;
default: default:
jj_la1[15] = jj_gen;
; ;
} }
L(f,n); {if (true) return f;} L(f,n); {if (true) return f;}
@@ -424,6 +440,7 @@ public class LuaParser implements LuaParserConstants {
p=Exp.parensprefix(e); L(p,i); {if (true) return p;} p=Exp.parensprefix(e); L(p,i); {if (true) return p;}
break; break;
default: default:
jj_la1[16] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -484,6 +501,7 @@ public class LuaParser implements LuaParserConstants {
p=Exp.functionop(lhs, a); L(p,i); {if (true) return p;} p=Exp.functionop(lhs, a); L(p,i); {if (true) return p;}
break; break;
default: default:
jj_la1[17] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -522,6 +540,7 @@ public class LuaParser implements LuaParserConstants {
el = ExpList(); el = ExpList();
break; break;
default: default:
jj_la1[18] = jj_gen;
; ;
} }
jj_consume_token(76); jj_consume_token(76);
@@ -542,6 +561,7 @@ public class LuaParser implements LuaParserConstants {
a=FuncArgs.string(s); L(a,i); {if (true) return a;} a=FuncArgs.string(s); L(a,i); {if (true) return a;}
break; break;
default: default:
jj_la1[19] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -580,6 +600,7 @@ public class LuaParser implements LuaParserConstants {
; ;
break; break;
default: default:
jj_la1[20] = jj_gen;
break label_7; break label_7;
} }
jj_consume_token(72); jj_consume_token(72);
@@ -642,6 +663,7 @@ public class LuaParser implements LuaParserConstants {
{if (true) return e;} {if (true) return e;}
break; break;
default: default:
jj_la1[21] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -679,6 +701,7 @@ public class LuaParser implements LuaParserConstants {
{if (true) return Str.longString(token.image);} {if (true) return Str.longString(token.image);}
break; break;
default: default:
jj_la1[22] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -716,6 +739,7 @@ public class LuaParser implements LuaParserConstants {
e=Exp.unaryexp(op,s); e=Exp.unaryexp(op,s);
break; break;
default: default:
jj_la1[23] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -755,6 +779,7 @@ public class LuaParser implements LuaParserConstants {
pl = ParList(); pl = ParList();
break; break;
default: default:
jj_la1[24] = jj_gen;
; ;
} }
jj_consume_token(76); jj_consume_token(76);
@@ -779,6 +804,7 @@ public class LuaParser implements LuaParserConstants {
v=true; v=true;
break; break;
default: default:
jj_la1[25] = jj_gen;
; ;
} }
p=new ParList(l,v); L(p,i); {if (true) return p;} p=new ParList(l,v); L(p,i); {if (true) return p;}
@@ -788,6 +814,7 @@ public class LuaParser implements LuaParserConstants {
p=new ParList(null,true); L(p,i); {if (true) return p;} p=new ParList(null,true); L(p,i); {if (true) return p;}
break; break;
default: default:
jj_la1[26] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -824,6 +851,7 @@ public class LuaParser implements LuaParserConstants {
c.fields=l; c.fields=l;
break; break;
default: default:
jj_la1[27] = jj_gen;
; ;
} }
jj_consume_token(81); jj_consume_token(81);
@@ -853,6 +881,7 @@ public class LuaParser implements LuaParserConstants {
FieldSep(); FieldSep();
break; break;
default: default:
jj_la1[28] = jj_gen;
; ;
} }
{if (true) return l;} {if (true) return l;}
@@ -874,6 +903,7 @@ public class LuaParser implements LuaParserConstants {
f=TableField.keyedField(exp,rhs); L(f,i); {if (true) return f;} f=TableField.keyedField(exp,rhs); L(f,i); {if (true) return f;}
break; break;
default: default:
jj_la1[29] = jj_gen;
if (jj_2_7(2)) { if (jj_2_7(2)) {
name = jj_consume_token(NAME); name = jj_consume_token(NAME);
jj_consume_token(71); jj_consume_token(71);
@@ -904,6 +934,7 @@ public class LuaParser implements LuaParserConstants {
f=TableField.listField(rhs); L(f,i); {if (true) return f;} f=TableField.listField(rhs); L(f,i); {if (true) return f;}
break; break;
default: default:
jj_la1[30] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -921,6 +952,7 @@ public class LuaParser implements LuaParserConstants {
jj_consume_token(70); jj_consume_token(70);
break; break;
default: default:
jj_la1[31] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -989,6 +1021,7 @@ public class LuaParser implements LuaParserConstants {
{if (true) return Lua.OP_OR;} {if (true) return Lua.OP_OR;}
break; break;
default: default:
jj_la1[32] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -1010,6 +1043,7 @@ public class LuaParser implements LuaParserConstants {
{if (true) return Lua.OP_LEN;} {if (true) return Lua.OP_LEN;}
break; break;
default: default:
jj_la1[33] = jj_gen;
jj_consume_token(-1); jj_consume_token(-1);
throw new ParseException(); throw new ParseException();
} }
@@ -1020,42 +1054,49 @@ public class LuaParser implements LuaParserConstants {
jj_la = xla; jj_lastpos = jj_scanpos = token; jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_1(); } try { return !jj_3_1(); }
catch(LookaheadSuccess ls) { return true; } catch(LookaheadSuccess ls) { return true; }
finally { jj_save(0, xla); }
} }
private boolean jj_2_2(int xla) { private boolean jj_2_2(int xla) {
jj_la = xla; jj_lastpos = jj_scanpos = token; jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_2(); } try { return !jj_3_2(); }
catch(LookaheadSuccess ls) { return true; } catch(LookaheadSuccess ls) { return true; }
finally { jj_save(1, xla); }
} }
private boolean jj_2_3(int xla) { private boolean jj_2_3(int xla) {
jj_la = xla; jj_lastpos = jj_scanpos = token; jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_3(); } try { return !jj_3_3(); }
catch(LookaheadSuccess ls) { return true; } catch(LookaheadSuccess ls) { return true; }
finally { jj_save(2, xla); }
} }
private boolean jj_2_4(int xla) { private boolean jj_2_4(int xla) {
jj_la = xla; jj_lastpos = jj_scanpos = token; jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_4(); } try { return !jj_3_4(); }
catch(LookaheadSuccess ls) { return true; } catch(LookaheadSuccess ls) { return true; }
finally { jj_save(3, xla); }
} }
private boolean jj_2_5(int xla) { private boolean jj_2_5(int xla) {
jj_la = xla; jj_lastpos = jj_scanpos = token; jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_5(); } try { return !jj_3_5(); }
catch(LookaheadSuccess ls) { return true; } catch(LookaheadSuccess ls) { return true; }
finally { jj_save(4, xla); }
} }
private boolean jj_2_6(int xla) { private boolean jj_2_6(int xla) {
jj_la = xla; jj_lastpos = jj_scanpos = token; jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_6(); } try { return !jj_3_6(); }
catch(LookaheadSuccess ls) { return true; } catch(LookaheadSuccess ls) { return true; }
finally { jj_save(5, xla); }
} }
private boolean jj_2_7(int xla) { private boolean jj_2_7(int xla) {
jj_la = xla; jj_lastpos = jj_scanpos = token; jj_la = xla; jj_lastpos = jj_scanpos = token;
try { return !jj_3_7(); } try { return !jj_3_7(); }
catch(LookaheadSuccess ls) { return true; } catch(LookaheadSuccess ls) { return true; }
finally { jj_save(6, xla); }
} }
private boolean jj_3R_43() { private boolean jj_3R_43() {
@@ -1581,6 +1622,28 @@ public class LuaParser implements LuaParserConstants {
private int jj_ntk; private int jj_ntk;
private Token jj_scanpos, jj_lastpos; private Token jj_scanpos, jj_lastpos;
private int jj_la; private int jj_la;
private int jj_gen;
final private int[] jj_la1 = new int[34];
static private int[] jj_la1_0;
static private int[] jj_la1_1;
static private int[] jj_la1_2;
static {
jj_la1_init_0();
jj_la1_init_1();
jj_la1_init_2();
}
private static void jj_la1_init_0() {
jj_la1_0 = new int[] {0x0,0xc0000000,0x0,0x0,0x0,0xc0000000,0x0,0x0,0x0,0x0,0xf800000,0x0,0x0,0x0,0x0,0x0,0x0,0xf800000,0xf800000,0xf800000,0x0,0xf800000,0xf800000,0xf800000,0x0,0x0,0x0,0xf800000,0x0,0x0,0xf800000,0x0,0x20000000,0x0,};
}
private static void jj_la1_init_1() {
jj_la1_1 = new int[] {0x0,0xc42f0,0x2000,0x0,0x0,0x440c0,0x30,0x80200,0x2,0x1,0x60190c28,0x0,0x0,0x0,0x0,0x0,0x80000,0x60000000,0x60190c28,0x60000000,0x0,0x60190428,0x60000000,0x60190c28,0x80000,0x0,0x80000,0x60190c28,0x0,0x0,0x60190c28,0x0,0x1000,0x800,};
}
private static void jj_la1_init_2() {
jj_la1_2 = new int[] {0x20,0x842,0x0,0x100,0x80,0x42,0x0,0x800,0x0,0x0,0x98820,0x40,0x180,0x100,0x200,0x400,0x800,0x12e00,0x98820,0x10800,0x100,0x18800,0x0,0x98820,0x8000,0x100,0x8000,0x9a820,0x140,0x2000,0x98820,0x140,0x7ffc0000,0x80020,};
}
final private JJCalls[] jj_2_rtns = new JJCalls[7];
private boolean jj_rescan = false;
private int jj_gc = 0;
/** Constructor with InputStream. */ /** Constructor with InputStream. */
public LuaParser(java.io.InputStream stream) { public LuaParser(java.io.InputStream stream) {
@@ -1592,6 +1655,9 @@ public class LuaParser implements LuaParserConstants {
token_source = new LuaParserTokenManager(jj_input_stream); token_source = new LuaParserTokenManager(jj_input_stream);
token = new Token(); token = new Token();
jj_ntk = -1; jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 34; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
} }
/** Reinitialise. */ /** Reinitialise. */
@@ -1604,6 +1670,9 @@ public class LuaParser implements LuaParserConstants {
token_source.ReInit(jj_input_stream); token_source.ReInit(jj_input_stream);
token = new Token(); token = new Token();
jj_ntk = -1; jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 34; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
} }
/** Constructor. */ /** Constructor. */
@@ -1612,6 +1681,9 @@ public class LuaParser implements LuaParserConstants {
token_source = new LuaParserTokenManager(jj_input_stream); token_source = new LuaParserTokenManager(jj_input_stream);
token = new Token(); token = new Token();
jj_ntk = -1; jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 34; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
} }
/** Reinitialise. */ /** Reinitialise. */
@@ -1620,6 +1692,9 @@ public class LuaParser implements LuaParserConstants {
token_source.ReInit(jj_input_stream); token_source.ReInit(jj_input_stream);
token = new Token(); token = new Token();
jj_ntk = -1; jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 34; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
} }
/** Constructor with generated Token Manager. */ /** Constructor with generated Token Manager. */
@@ -1627,6 +1702,9 @@ public class LuaParser implements LuaParserConstants {
token_source = tm; token_source = tm;
token = new Token(); token = new Token();
jj_ntk = -1; jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 34; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
} }
/** Reinitialise. */ /** Reinitialise. */
@@ -1634,6 +1712,9 @@ public class LuaParser implements LuaParserConstants {
token_source = tm; token_source = tm;
token = new Token(); token = new Token();
jj_ntk = -1; jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 34; i++) jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
} }
private Token jj_consume_token(int kind) throws ParseException { private Token jj_consume_token(int kind) throws ParseException {
@@ -1642,9 +1723,21 @@ public class LuaParser implements LuaParserConstants {
else token = token.next = token_source.getNextToken(); else token = token.next = token_source.getNextToken();
jj_ntk = -1; jj_ntk = -1;
if (token.kind == kind) { if (token.kind == kind) {
jj_gen++;
if (++jj_gc > 100) {
jj_gc = 0;
for (int i = 0; i < jj_2_rtns.length; i++) {
JJCalls c = jj_2_rtns[i];
while (c != null) {
if (c.gen < jj_gen) c.first = null;
c = c.next;
}
}
}
return token; return token;
} }
token = oldToken; token = oldToken;
jj_kind = kind;
throw generateParseException(); throw generateParseException();
} }
@@ -1661,6 +1754,11 @@ public class LuaParser implements LuaParserConstants {
} else { } else {
jj_scanpos = jj_scanpos.next; jj_scanpos = jj_scanpos.next;
} }
if (jj_rescan) {
int i = 0; Token tok = token;
while (tok != null && tok != jj_scanpos) { i++; tok = tok.next; }
if (tok != null) jj_add_error_token(kind, i);
}
if (jj_scanpos.kind != kind) return true; if (jj_scanpos.kind != kind) return true;
if (jj_la == 0 && jj_scanpos == jj_lastpos) throw jj_ls; if (jj_la == 0 && jj_scanpos == jj_lastpos) throw jj_ls;
return false; return false;
@@ -1672,6 +1770,7 @@ public class LuaParser implements LuaParserConstants {
if (token.next != null) token = token.next; if (token.next != null) token = token.next;
else token = token.next = token_source.getNextToken(); else token = token.next = token_source.getNextToken();
jj_ntk = -1; jj_ntk = -1;
jj_gen++;
return token; return token;
} }
@@ -1692,12 +1791,75 @@ public class LuaParser implements LuaParserConstants {
return (jj_ntk = jj_nt.kind); 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;
private int[] jj_lasttokens = new int[100];
private int jj_endpos;
private void jj_add_error_token(int kind, int pos) {
if (pos >= 100) return;
if (pos == jj_endpos + 1) {
jj_lasttokens[jj_endpos++] = kind;
} else if (jj_endpos != 0) {
jj_expentry = new int[jj_endpos];
for (int i = 0; i < jj_endpos; i++) {
jj_expentry[i] = jj_lasttokens[i];
}
jj_entries_loop: for (java.util.Iterator it = jj_expentries.iterator(); it.hasNext();) {
int[] oldentry = (int[])(it.next());
if (oldentry.length == jj_expentry.length) {
for (int i = 0; i < jj_expentry.length; i++) {
if (oldentry[i] != jj_expentry[i]) {
continue jj_entries_loop;
}
}
jj_expentries.add(jj_expentry);
break jj_entries_loop;
}
}
if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
}
}
/** Generate ParseException. */ /** Generate ParseException. */
public ParseException generateParseException() { public ParseException generateParseException() {
Token errortok = token.next; jj_expentries.clear();
int line = errortok.beginLine, column = errortok.beginColumn; boolean[] la1tokens = new boolean[95];
String mess = (errortok.kind == 0) ? tokenImage[0] : errortok.image; if (jj_kind >= 0) {
return new ParseException("Parse error at line " + line + ", column " + column + ". Encountered: " + mess); la1tokens[jj_kind] = true;
jj_kind = -1;
}
for (int i = 0; i < 34; i++) {
if (jj_la1[i] == jj_gen) {
for (int j = 0; j < 32; j++) {
if ((jj_la1_0[i] & (1<<j)) != 0) {
la1tokens[j] = true;
}
if ((jj_la1_1[i] & (1<<j)) != 0) {
la1tokens[32+j] = true;
}
if ((jj_la1_2[i] & (1<<j)) != 0) {
la1tokens[64+j] = true;
}
}
}
}
for (int i = 0; i < 95; i++) {
if (la1tokens[i]) {
jj_expentry = new int[1];
jj_expentry[0] = i;
jj_expentries.add(jj_expentry);
}
}
jj_endpos = 0;
jj_rescan_token();
jj_add_error_token(0, 0);
int[][] exptokseq = new int[jj_expentries.size()][];
for (int i = 0; i < jj_expentries.size(); i++) {
exptokseq[i] = (int[])jj_expentries.get(i);
}
return new ParseException(token, exptokseq, tokenImage);
} }
/** Enable tracing. */ /** Enable tracing. */
@@ -1708,4 +1870,45 @@ public class LuaParser implements LuaParserConstants {
final public void disable_tracing() { final public void disable_tracing() {
} }
private void jj_rescan_token() {
jj_rescan = true;
for (int i = 0; i < 7; i++) {
try {
JJCalls p = jj_2_rtns[i];
do {
if (p.gen > jj_gen) {
jj_la = p.arg; jj_lastpos = jj_scanpos = p.first;
switch (i) {
case 0: jj_3_1(); break;
case 1: jj_3_2(); break;
case 2: jj_3_3(); break;
case 3: jj_3_4(); break;
case 4: jj_3_5(); break;
case 5: jj_3_6(); break;
case 6: jj_3_7(); break;
}
}
p = p.next;
} while (p != null);
} catch(LookaheadSuccess ls) { }
}
jj_rescan = false;
}
private void jj_save(int index, int xla) {
JJCalls p = jj_2_rtns[index];
while (p.gen > jj_gen) {
if (p.next == null) { p = p.next = new JJCalls(); break; }
p = p.next;
}
p.gen = jj_gen + xla - jj_la; p.first = token; p.arg = xla;
}
static final class JJCalls {
int gen;
Token first;
int arg;
JJCalls next;
}
} }