[stringtemplate-interest] [ST4-Beta3] Endless loop and OutOfMemoryError when processing invalid template

[Udo Borkowski]

Hi,

given this (invalid) template definition (using '$', '$' delimiter):

main() ::= <<
$t()>
>>

results in these errors:

sketchpad.stg 2:17: invalid character '>'
sketchpad.stg 2:17: invalid character '<EOF>'
sketchpad.stg 2:17: invalid character '<EOF>'
sketchpad.stg 2:17: invalid character '<EOF>'
sketchpad.stg 2:17: invalid character '<EOF>'
sketchpad.stg 2:17: invalid character '<EOF>'
.
.
.
endlessly repeat the EOF error and finally ends with an 

java.lang.OutOfMemoryError: Java heap space


To work around this issue I added a check for EOF at the end of STLexer#inside():

	errMgr.lexerError(input.getSourceName(), "invalid character '"+str(c)+"'", templateToken, re);
	if (c==EOF) {
		return newToken(EOF_TYPE);
	}
	consume();


Udo
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