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authorKaz Kyheku <kaz@kylheku.com>2020-01-31 06:25:01 -0800
committerKaz Kylheku <kaz@kylheku.com>2020-01-31 06:25:01 -0800
commit24bd936a9fa671599f0756595e8abcbd2a7da96f (patch)
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c_str: don't allow symbols.
On 2009-10-02, prior to TXR 014, I made a change to the c_str function to allow symbolic arguments, so that c_str(sym) could be used in the code base instead of c_str(symbol_name(sym)). This was a bad idea, and is allowing numerous functions that operate on strings to accept symbols also. That behavior is not documented and not consistently supported. Ironically, I completely forgot about this and have been consistently using symbol_name(sym) anyway. Let us remove this. Compat support is required because this will break user code that accidentally depends on this undocumented behavior. * lib.c (c_str): If the object is type SYM, only return the symbol_name if compatibility with 231 or older is requested, otherwise fall through to the error case. * match.c (dump_var): Fix one case where a symbol is passed directly to put_string. This fails one of the test cases. More testing is required to see if any other such cases occur. * txr.1: New entry in the compatibility notes.
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