Poul-Henning Kamp 75067f4f70 Add an extensible version of our *printf(3) implementation to libc ... on probationary terms: it may go away again if it transpires it is a bad idea. This extensible printf version will only be used if either environment variable USE_XPRINTF is defined or one of the extension functions are called. or the global variable __use_xprintf is set greater than zero. In all other cases our traditional printf implementation will be used. The extensible version is slower than the default printf, mostly because less opportunity for combining I/O operation exists when faced with extensions. The default printf on the other hand is a bad case of spaghetti code. The extension API has a GLIBC compatible part and a FreeBSD version of same. The FreeBSD version exists because the GLIBC version may run afoul of our FILE * locking in multithreaded programs and it even further eliminate the opportunities for combining I/O operations. Include three demo extensions which can be enabled if desired: time (%T), hexdump (%H) and strvis (%V). %T can format time_t (%T), struct timeval (%lT) and struct timespec (%llT) in one of two human readable duration formats: "%.3llT" -> "20349.245" "%#.3llT" -> "5h39m9.245" %H will hexdump a sequence of bytes and takes a pointer and a length argument. The width specifies number of bytes per line. "%4H" -> "65 72 20 65" "%+4H" -> "0000 65 72 20 65" "%#4H" -> "65 72 20 65 |er e|" "%+#4H" -> "0000 65 72 20 65 |er e|" %V will dump a string in strvis format. "%V" -> "Hello\tWor\377ld" (C-style) "%0V" -> "Hello\011Wor\377ld" (octal) "%+V" -> "Hello%09Wor%FFld" (http-style) Tests, comments, bugreports etc are most welcome.		2005-12-16 18:56:39 +00:00
..
_flock_stub.c	Backout the previous revision due to objections.	2004-03-09 04:51:58 +00:00
asprintf.c
clrerr.c
fclose.3
fclose.c
fdopen.c
feof.c	Re-add macro versions of getc(), getchar(), putc(), putchar(), feof(),	2004-03-17 01:43:08 +00:00
ferror.3	mdoc(7) police: markup laundry.	2003-02-23 01:47:49 +00:00
ferror.c	Re-add macro versions of getc(), getchar(), putc(), putchar(), feof(),	2004-03-17 01:43:08 +00:00
fflush.3	Add or correct section number in .Xr. Use .Vt or .Fn	2003-06-08 10:01:52 +00:00
fflush.c	Add commentary explaining why we return EBADF upon attempts to fflush() a	2004-07-04 20:17:00 +00:00
fgetc.c	Do not redundantly set the stream orientation in getc(), putc(), and	2004-03-19 09:04:56 +00:00
fgetln.3	Add a cross reference to fgetwln(3).	2004-07-16 06:07:12 +00:00
fgetln.c	Rename slbexpand() to __slbexpand() and make it available outside	2004-07-16 05:52:51 +00:00
fgetpos.c
fgets.3	Remove references to nonexistent "FreeBSD Security Architecture" document.	2005-09-05 09:49:33 +00:00
fgets.c
fgetwc.c	Call __mbrtowc() and __wcrtomb() directly instead of taking detours	2004-07-20 08:27:27 +00:00
fgetwln.3	Use the correct function name as .Nm argument.	2005-09-18 15:40:03 +00:00
fgetwln.c	Fix an off-by-one bug that caused the first character of the buffer to	2004-08-06 17:00:09 +00:00
fgetws.3	MFp4: Add the standard "the {fgetws,fputws} function will fail if" text	2003-03-09 02:56:54 +00:00
fgetws.c	Don't add integers to void pointers.	2004-10-03 15:48:32 +00:00
fileno.c	Re-add macro versions of getc(), getchar(), putc(), putchar(), feof(),	2004-03-17 01:43:08 +00:00
findfp.c	Associate a multibyte conversion state object with each stream. Reset it	2004-05-22 15:19:41 +00:00
flags.c
floatio.h	Prototype __hdtoa() and __hldtoa().	2004-01-18 08:28:47 +00:00
flockfile.3
fopen.3	The correct description for mode "w" is	2005-05-04 08:12:44 +00:00
fopen.c
fprintf.c
fpurge.c
fputc.c	Do not redundantly set the stream orientation in getc(), putc(), and	2004-03-19 09:04:56 +00:00
fputs.3
fputs.c
fputwc.c	Call __mbrtowc() and __wcrtomb() directly instead of taking detours	2004-07-20 08:27:27 +00:00
fputws.3	Assorted mdoc(7) fixes.	2003-05-22 13:02:28 +00:00
fputws.c	Implement the GNU extensions of mbsnrtowcs() and wcsnrtombs(). These are	2004-07-21 10:54:57 +00:00
fread.3
fread.c	With current pthread implementations, a mutex initialization will	2005-12-16 02:50:53 +00:00
freopen.c	Associate a multibyte conversion state object with each stream. Reset it	2004-05-22 15:19:41 +00:00
fscanf.c
fseek.3	Improve documentation for fgetpos() and fsetpos(), and discourage	2004-03-20 08:38:27 +00:00
fseek.c	Associate a multibyte conversion state object with each stream. Reset it	2004-05-22 15:19:41 +00:00
fsetpos.c
ftell.c
funopen.3	Eliminate double whitespace.	2004-07-03 22:30:10 +00:00
funopen.c
fvwrite.c	Rename cantwrite() to prepwrite(). The latter is less confusing,	2004-06-08 05:45:48 +00:00
fvwrite.h
fwalk.c
fwide.3
fwide.c
fwprintf.c
fwrite.c
fwscanf.c
getc.3	Fix prototype.	2005-11-23 20:26:58 +00:00
getc.c	Do not redundantly set the stream orientation in getc(), putc(), and	2004-03-19 09:04:56 +00:00
getchar.c	Do not redundantly set the stream orientation in getc(), putc(), and	2004-03-19 09:04:56 +00:00
gets.c	Back out previous. Many people disagreed with removing the warning.	2003-01-30 23:32:53 +00:00
getw.c
getwc.3	Fix prototype.	2005-11-23 20:26:58 +00:00
getwc.c	Provide trivial macro implementations of getwc(), getwchar(), putwc() and	2004-05-25 10:42:52 +00:00
getwchar.c	Provide trivial macro implementations of getwc(), getwchar(), putwc() and	2004-05-25 10:42:52 +00:00
glue.h	The header glue.h should provide just a declaration for the variable	2005-05-13 21:12:34 +00:00
local.h	With current pthread implementations, a mutex initialization will	2005-12-16 02:50:53 +00:00
makebuf.c	Move the declaration of __cleanup to libc_private.h as it is used in both	2005-09-12 13:46:32 +00:00
Makefile.inc	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00
mktemp.3	Sort sections.	2005-01-20 09:17:07 +00:00
mktemp.c	Eliminate 61 warnings emitted at WARNS=2 (leaving 53 to go).	2003-02-16 17:29:11 +00:00
perror.c
printf.3	Remove references to nonexistent "FreeBSD Security Architecture" document.	2005-09-05 09:49:33 +00:00
printf.c
putc.3	Re-add description of putc() macro (back out rev. 1.13.)	2004-03-17 12:46:17 +00:00
putc.c	Do not redundantly set the stream orientation in getc(), putc(), and	2004-03-19 09:04:56 +00:00
putchar.c	Do not redundantly set the stream orientation in getc(), putc(), and	2004-03-19 09:04:56 +00:00
puts.c	Set stream orientation in puts().	2004-03-10 09:15:38 +00:00
putw.c
putwc.3	Refer to "wide characters" instead of "wide-characters".	2004-03-16 13:30:11 +00:00
putwc.c	Provide trivial macro implementations of getwc(), getwchar(), putwc() and	2004-05-25 10:42:52 +00:00
putwchar.c	Provide trivial macro implementations of getwc(), getwchar(), putwc() and	2004-05-25 10:42:52 +00:00
refill.c
remove.3
remove.c
rewind.c
rget.c
scanf.3	Update to reflect changes in vfscanf.c,v 1.32. Remove bogus	2003-06-28 09:03:25 +00:00
scanf.c
setbuf.3	Scheduled mdoc(7) sweep.	2005-01-11 20:50:51 +00:00
setbuf.c
setbuffer.c
setvbuf.c
snprintf.c
sprintf.c
sscanf.c
stdio.3	Sort sections.	2005-01-20 09:17:07 +00:00
stdio.c
swprintf.c
swscanf.c
tempnam.c
tmpfile.c	Fix use of an uninitialized pointer introduced in a previous revision.	2003-02-06 01:08:19 +00:00
tmpnam.3	Remove references to nonexistent "FreeBSD Security Architecture" document.	2005-09-05 09:49:33 +00:00
tmpnam.c
ungetc.3
ungetc.c	Set stream orientation in ungetc() instead of __ungetc(). This avoids	2004-03-10 12:41:11 +00:00
ungetwc.3	Refer to "wide characters" instead of "wide-characters".	2004-03-16 13:30:11 +00:00
ungetwc.c	Include <sys/types.h> and <limits.h> ourselves, don't assume they are included	2005-08-20 07:59:13 +00:00
unlocked.c
vasprintf.c
vfprintf.c	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00
vfscanf.c	With current pthread implementations, a mutex initialization will	2005-12-16 02:50:53 +00:00
vfwprintf.c	Be bug-for-bug compatible with the C standard with respect to	2005-04-16 22:36:51 +00:00
vfwscanf.c	Include <sys/types.h> and <limits.h> ourselves, don't assume they are included	2005-08-20 07:59:13 +00:00
vprintf.c
vscanf.c
vsnprintf.c	When size is 1 should just null terminate the string. The dummy variable	2003-07-02 07:08:44 +00:00
vsprintf.c
vsscanf.c
vswprintf.c	Fix EOVERFLOW detection in vswprintf(3)	2005-02-21 19:41:44 +00:00
vswscanf.c	Prepare to handle trivial state-dependent encodings. Full support for	2004-04-07 09:55:05 +00:00
vwprintf.c
vwscanf.c
wbuf.c	Rename cantwrite() to prepwrite(). The latter is less confusing,	2004-06-08 05:45:32 +00:00
wprintf.3	Add more useful cross-references to the SEE ALSO section.	2003-07-05 07:55:34 +00:00
wprintf.c
wscanf.3	Catch up with recent FP-related changes to scanf.3 and vfwscanf.c.	2003-07-05 07:47:55 +00:00
wscanf.c
wsetup.c	Set errno to EBADF on attempts to write to a stream that is not	2004-06-08 05:44:52 +00:00
xprintf_float.c	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00
xprintf_hexdump.c	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00
xprintf_int.c	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00
xprintf_str.c	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00
xprintf_time.c	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00
xprintf_vis.c	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00
xprintf.c	Add an extensible version of our *printf(3) implementation to libc	2005-12-16 18:56:39 +00:00