You are right here I didn't noticed the "<", but the problem is with not checking the end of string by default.

I've update to trunk and now I got on one of my existing projects an error message about unterminated string, it seems that utf8 characters are not handled correctly, I have this line on my upp project file and clicking ignoring zeroed the upp file !!!!!!!!;
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description "Archivo y búsqueda del Boletin Oficial de la Provincia de Málaga\377";
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I'll continue to check the witz parser, it got better error messages about line numbers, but when we have merged witz files and the error is in one of the merged ones the line number on the error message is for the merged file, ideally it should indicate the line on the individual inserted file.

Anyway thanks for all of you that helped so far !