Big round of changes to switch the code base to use the stream

abstraction instead of directly using C standard I/O,
to eliminate most uses of C formatted I/O,
and fix numerous bugs, such variadic argument lists which
lack a terminating ``nao'' sentinel.

Bug 28033 is addressed by this patch, since streams no longer provide
printf-compatible formatting. The native formatter is extended with
some additional capabilities to take over.

The work on literal objects is expanded and they are now used
throughout the code base.

Fixed bad realloc in string output stream: reallocating by number
of wide chars rather than bytes.

1 files changed, 96 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 376dfb31..0cb0e42e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,99 @@
+2009-11-16  Kaz Kylheku  <kkylheku@gmail.com>
+
+	Big round of changes to switch the code base to use the stream
+	abstraction instead of directly using C standard I/O,
+	to eliminate most uses of C formatted I/O,
+	and fix numerous bugs, such variadic argument lists which
+	lack a terminating ``nao'' sentinel. 
+	
+	Bug 28033 is addressed by this patch, since streams no longer provide
+	printf-compatible formatting. The native formatter is extended with
+	some additional capabilities to take over.
+
+	The work on literal objects is expanded and they are now used
+	throughout the code base.
+
+	Fixed bad realloc in string output stream: reallocating by number
+	of wide chars rather than bytes.
+
+	* gc.c (sweep): Debugging code switched from fprintf to format.
+
+	* lib.c (typ_check, type_check2, car, cdr, car_l, cdr_l, list,
+	num, chrp, apply, cobj_print_op, dump): Retargetted, with help of new
+	literals, to new funtions that take string objects, rather than raw C
+	strings.
+	(obj_print, obj_pprint): Revamped with support for LIT type.
+	Retargetted to not use C style I/O functions in streams.
+
+	* lib.h (lit): Macro retargetted to another macro so that it expands
+	its argument.
+	(lit_noex): New macro, like lit, but does not macro-expand argument.
+	(auto_str): New macro.
+	(static_str): New macro.
+
+	* match.c (debugf, debuglf, sem_error, file_err): Converted from C
+	string to string object.
+	(dest_bind, match_line, LOG_MISMATCH, LOG_MATCH, match_files):
+	Retargetted to new interfaces that take string objects rather than raw
+	C strings.
+	(complex_stream): New function.
+	(do_output_line, do_output, extract): Retargetted from C streams to
+	object streams.	
+
+	* parser.h (yyerrorf): Declaration updated.
+
+	* parser.l (yyerror): Call new yyerrorf interface, using auto_str
+	macro to dress up C string as a temporary object.
+	(yyerrorf): Changed from C strings to object strings.	
+	(yybadtoken, grammar): Retargetted to new yyerrorf.
+
+	* stream.c (strm_ops): put_string and put_char function pointers
+	changed to take object strings rather than C strings.  vcformat and
+	vformat virtuals removed. C formatting is not supported, and vformat is
+	handled above the stream switch level in one place for all streams.
+	(common_vformat, stdio_vcformat, string_out_vcformat, cformat,
+	put_cstring, put_cchar): Functions removed.	
+	(stdio_stream_print, stdio_stream_destroy, stdio_maybe_write_error,
+	stdio_put_string, stdio_put_char, stdio_close, pipe_close,
+	string_out_put_char, make_pipe_stream, make_string_input_stream,
+	make_string_output_stream, make_dir_stream, close_stream,
+	get_line, put_line, get_char, put_char, put_string): Retargetted to new
+	string object interfaces.
+	(stdio_ops, pipe_ops): stdio_vcformat and common_vcformat initializers
+	(string_out_ops): string_out_vcformat and common_vcformat initializers
+	removed.
+	(string_in_ops, byte_in_ops, dir_ops): Two null initializers removed.
+	(string_out_put_string): Converted to object string interface.
+	Unnecessary chk_realloc call suppressed.
+	(get_string_from_stream): Fixed bad call to realloc with incorrect
+	size.
+	(vformat_num, vformat_str): New functions, helper to vformat.
+	(vformat): Rewritten. Is now the formatting engine.
+	(format, put_string, put_char): Interface converted from C string to
+	object string.
+
+	* stream.h (vformat, format): Declarations updated.
+	(vcformat, cformat, put_cstring, put_cchar): Declarations removed.
+
+	* txr.c (oom_realloc_handler, help, txr_main): Retargetted to object
+	stream and strings.
+
+	* unwind.c (uw_throw, type_mismatch, uw_register_subtype): Retargetted
+	to new string object interfaces.
+	(uw_throwf, uw_errorf): Interface changed from C string to object
+	string.
+	(uw_throwcf, uw_errorcf): Functions removed.
+
+	* unwind.h (uw_throwf, uw_errorf, type_mismatch): Declarations updated.
+	(uw_throwcf, uw_errorcf): Declarations removed.
+	(internal_error): Macro interface changed and retargetted to
+	object strings. Also, num hygiene problem worked around with local
+	extern declaration.
+	(numeric_assert, range_bug_unless): Retargetted to object strings.
+
+	* utf8.c (utf8_to, utf8_dup_from_uc, utf8_dup_from,
+	utf8_dup_to_uc): Casts of chk_malloc return value added.
+
 2009-11-15  Kaz Kylheku  <kkylheku@gmail.com>
 
 	Use the 11 tag bit pattern to denote a new type: LIT. This is a