changes

一个C语言写的快速贝叶斯垃圾邮件过滤工具

* Fixed group scanning with modifiers.

* Fixed compilation for 64-bit Digital Unix.

* Igor Zlatkovic
  Fixed compilation of dprintf, which uses read/write, for MSVC.

* Fixed various compilation problems on Digital Unix (mainly associated with
  va_list).


Version 1.2 - 2001/04/11
------------------------
* Added autoconf integration. If compiled with HAVE_CONFIG_H the following
  happens. Firstly, <config.h> is included. Secondly, trio will only be
  compiled if WITH_TRIO is defined herein. Thirdly, if TRIO_REPLACE_STDIO is
  defined, only stdio functions that have not been detected by autoconf, i.e.
  those not defined by HAVE_PRINTF or similar, will be replaced by trio
  functions (suggested by Daniel Veillard).

* Fixed '%m.nf' output. Previously trio did not treat the width properly
  in all cases (reported by Gisli Ottarsson).

* Added explicit promotion for the scanfv family.

* Fixed more C++ compilation warnings.


Version 1.1 - 2001/02/25
------------------------
* Added explicit promotion for the printfv familiy. A float must be specified
  by %hf.

* Fixed positionals for printfv (reported by Gisli Ottarsson).

* Fixed an integer to pointer conversion problem on the SGI MIPS C compiler
  (reported by Gisli Ottarsson).

* Fixed ANSI C++ warnings (type casting, and namespace is a reserved keyword).

* Added \n to all examples in the documentation to prevent confusion.

* Fixed StrSubstringMax


Version 1.0 - 2000/12/10
------------------------
* Bumped Version number.


Version 0.25 - 2000/12/09
-------------------------
* Wrote more documentation.

* Improved NaN support and added NaN to regression test.

* Fixed C99 support.

* Added missing getter/setter functions.


Version 0.24 - 2000/12/02
-------------------------
* Added callback functionality for the user-defined specifier (<>). All
  the necessary functions are defined in triop.h header file. See the
  documentation for trio_register for further detail.

* Wrote initial documentation on the callback functionality.

* Added the printfv and scanfv family of functions, which takes a pointer
  array rather than variadic arguments. Each pointer in the array must point
  to the associated data (requested by Bruce Korb).

* As indicated in version 0.21 the extension modifiers (<>) have now been
  completely removed.

* Added skipping of thousand-separators in floating-point number scanning.


Version 0.23 - 2000/10/21
-------------------------
* Added width to scanning of floating-point numbers.

* Wrote more documentation on trio_printf.

* Fixed problem with trailing zeroes after decimal-point.


Version 0.22 - 2000/08/06
-------------------------
* Added LC_CTYPE locale dependent character class expressions to scan lists.
  Included are [:alnum:], [:alpha:], [:cntrl:], [:digit:], [:graph:],
  [:lower:], [:print:], [:punct:], [:space:], [:upper:], [:xdigit:]

* Added C escapes to alternative string formatting and scanning.

* Added StrSubstringMax.

* Wrote a little more documentation.

* Fixed scanf return values.

* Fixed a sign error for non-ascii characters.


Version 0.21 - 2000/07/19
-------------------------
* Converted the documentation to TeX. With latex2man the documentation can
  automatically be converted into man pages.

* Added trio_scanf, trio_vscanf, trio_fscanf, and trio_vfscanf.

* Added trio_dprintf, trio_vdprintf, trio_dscanf, and trio_vdscanf. These
  functions can be used to write and read directly to pipes and sockets (the
  assume blocking sockets). Stdio buffering is surpassed, so the functions are
  async-safe. However, reading from stdin (STDIN_FILENO) or writing to stdout
  (STDOUT_FILENO) reintroduces the buffering.

* Added trio_dprintf and trio_vdprintf. These can be used to write directly
  to pipes and sockets.

* Paul Janzen
  Added trio_asprintf and trio_vasprintf, which are compatible with the GNU
  and BSD interfaces.

* Added scanlist ranges for group scanning (%[]).

* Added width for scanning (missing for floating-point numbers though).

* Added variable size modifier (&) to handle system defined types of unknown
  size. This modifier makes certain assumptions about the integer sizes, which
  may not be valid on any machine. Consequently, the modifier will remain
  undocumented, as it may be removed later.

* Added \777 and \xFF to alternative string scanning (%#s)

* Added the TRIO_REPLACE_STDIO check in the header.

* Improved performance of the multibyte character parsing.

* Fixed positionals (%n$) which had stopped working.

* Fixed hh and ll modifiers to allow exactly two letters and no more.

* Fixed ANSI C++ warnings. Also fixed the compiler warning about casting
  between integer and pointer (this has been annoying me for ages). 

* Fixed snprintf and vsnprintf with zero buffer size.

* Fixed NAN problems (reported by Keith Briggs).

* Fixed parsing of multibyte characters. The format string was not correctly
  advanced in case of a multibyte character.

* Renamed many of the internal functions to have more consistant names.

* Removed the <quote=c> and <fill=c> modifiers. They are not really worth
  including. The other <> modifiers may disappear as well.


Version 0.20 - 2000/06/05
-------------------------
* Added intmax_t and ptrdiff_t support.

* Added support for LC_NUMERIC grouping.

* Added double-dot notation for the conversion base. The style is now
  %width.precision.base, where any argument can be a number, an asterix
  indicating a parameter, or be omitted entirely. For example, %*..2i is
  to specify binary numbers without precision, and with width as a parameter
  on the va_list.

* Added sticky modifier (!), which makes subsequent specifiers of the same
  type reuse the current modifiers. Inspired by a suggestion from Gary Porter.

* Added group scanning (%[]). Scanlist ranges and multibyte sequences are not
  supported yet.

* Added count scanning (%n).

* Changed the number scanning to accept thousand separators and any base.

* Fixed positional for parameters. It is possible to write something like
  %3$*1$.*2$d (which happens to be the same as %*.*d).

* Fixed precision of integers.

* Fixed parameter flags. Before trio could only handle one parameter flag per
  specifier, although two (three with double-dot base) were possible.

* Fixed isinf() for those platforms where it is unimplemented.


Version 0.18 - 2000/05/27
-------------------------
* Rewrote the entire floating-point formatting function (Danny Dulai had
  reported several errors and even supplied some patches, which unfortunately
  were lost due to the refactoring).

* Removed the use of strlen() in the declaration of a stack array. This
  caused problems on some compilers (besides it isn't really ANSI C compliant
  anyways). Using some arbitrarily chosen maximum value; should examine if
  some standard defines an upper limit on the length of decimal-point and
  thousands-separator (sizeof(wchar_t) perhaps?)

* Changed the parsing of the format string to be multibyte aware.


Version 0.17 - 2000/05/19
-------------------------
* Added INF, -INF, and NAN for floating-point numbers.

* Fixed %#.9g -- alternative with precision.

* Ken Gibson
  Fixed printing of negative hex numbers

* Joerg (last name unknown)
  Fixed convertion of non-ASCII characters


Version 0.16 - 1999/08/06
-------------------------
* Changed the constness of the second argument of StrFloat and StrDouble. The
  lack of parameter overloading in C is the reason for the strange use of
  constness in strtof and strtod.

* Cleaned up constness.


Version 0.15 - 1999/07/23
-------------------------
* Fixed the internal representation of numbers from signed to unsigned. Signed
  numbers posed a problem for large unsigned numbers (reported by Tero)

* Fixed a tiny bug in trio_vsprintfcat

* Changed the meaning of the max argument of StrAppendMax to be consistant
  with StrFormatAppendMax. Now it is the maximal size of the entire target
  buffer, not just the appended size. This makes it easier to avoid buffer
  overflows (requested by Tero)


Version 0.14 - 1999/05/16
-------------------------
* Added size_t support (just waiting for a C99 compliant compiler to add
  ptrdiff_t and intmax_t)

* Rewrote TrioOutStreamDouble so it does not use the libc sprintf to emulate
  floating-point anylonger.

* Fixed width, precision, and adjustment for numbers and doubles.


Version 0.13 - 1999/05/06
-------------------------
* Fixed zero padding for %d. Now %d will only zero pad if explicitly requested
  to do so with the 0 flag (reported by Tero).

* Fixed an incorrect while() condition in TrioGetString (reported by Tero).


Version 0.12 - 1999/04/19
-------------------------
* Fixed incorrect zero padding of pointers

* Added StrHash with STRIO_HASH_PLAIN

* Added StrFormatDateMax


Version 0.11 - 1999/03/25
-------------------------
* Made it compile under cygwin

* Fixed a bug were TrioPreprocess would return an error if no formatting chars
  were found (reported by Tero).


Version - 1999/03/19
--------------------
* Added trio_strerror and TRIO_ERROR_NAME.

* Changed the error codes to be positive (as errno)

* Fixed two reads of uninitialized memory reported by Purify

* Added binary specifiers 'b' and 'B' (like SCO.) ThousandSeparator can be
  used to separate nibbles (4 bit)

* Renamed all Internal* functions to Trio*, which seems like a better
  namespace (even though it is of no practical interest because these
  functions are not visible beyond the scope of this file.)


Version - 1999/03/12
--------------------
* Added hex-float format for StrToDouble

* Double references and gaps in the arguments are not allowed (for the %n$
  format) and in both cases an error code is returned.

* Added StrToDouble (and StrToFloat)


Version - 1999/03/08
--------------------
* Added InStream and OutStream to the trio_T structure.

* Started work on TrioScan.

* Return values for errors changed. Two macros to unpack the error code has
  been added to the header.

* Shortshort (hh) flag added.

* %#s also quotes the quote-char now.

* Removed the 'errorInFormat' boolean, which isn't used anymore after the
  functions bail out with an error instead.


Version - 1999/03/04
--------------------
* More than MAX_PARAMETERS parametes will now cause the TrioPreprocess()
  function to return error.

* Unknown flags and/or specifiers cause errors too.

* Added trio_snprintfcat and trio_vsnprintfcat and the defined name
  StrFormatAppendMax. They append a formatted string to the end of a string.

* Define MAX_PARAMETERS to 128 at all times instead of using NL_ARGMAX when
  that exists.

* Added platform fixes for Amiga as suggested by Tero J鋘k