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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
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@@ -14,20 +14,6 @@ import org.luaj.vm2.parser.*;
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) {
if (args.length == 0) {
System.out.println("usage: SampleParser luafile");
@@ -38,16 +24,7 @@ public class SampleParser {
// Create a custom LuaParser subclass that intercepts parse exceptions and
// extracts the line and column number information from the parse token.
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);
}
};
LuaParser parser = new LuaParser(new FileInputStream(file));
// Perform the parsing.
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 ) {
System.out.println( "Parse failed at unknown location: "+e );
e.printStackTrace();
System.out.println( "Parse failed : "+e );
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 ) {
System.out.println( "IOException occurred: "+e );