I've just been bitten by the "backslash in string literals" issue. I have reviewed the mailing lists and the TODO list. I see that the direction PostgreSQL is headed is to drop the nonstandard escapes, unless an extended literal is explicitly used. I've attached a patch which supports this as a configure option, using a --enable-standard-strings switch. It's probably somewhat naive, but maybe it can be helpful.
-Kevin
patch.txt
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