I'll try to find an example of the syntax error I was mentioning, but I regularly trip up the parser with dumb mistakes which cause it to give completely useless errors.

> Syntax errors are caught well by the parser which tells you exactly where they are.

They aren't necessarily caused where the actual error is, just wherever the parser gets stuck, and the error it produces is usually not reflective of the human thought process that went in, but rather the automata's state.