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source: vbox/trunk/src/libs/libxml2-2.6.30/trio.c@ 25275

Last change on this file since 25275 was 6076, checked in by vboxsync, 17 years ago

Merged dmik/s2 branch (r25959:26751) to the trunk.
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File size: 155.8 KB
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1/*************************************************************************
2 *
3 * $Id: trio.c 6076 2007-12-14 19:23:03Z vboxsync $
4 *
5 * Copyright (C) 1998 Bjorn Reese and Daniel Stenberg.
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
12 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
13 * MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND
14 * CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER.
15 *
16 *************************************************************************
17 *
18 * A note to trio contributors:
19 *
20 * Avoid heap allocation at all costs to ensure that the trio functions
21 * are async-safe. The exceptions are the printf/fprintf functions, which
22 * uses fputc, and the asprintf functions and the <alloc> modifier, which
23 * by design are required to allocate form the heap.
24 *
25 ************************************************************************/
26
27/*
28 * TODO:
29 * - Scan is probably too permissive about its modifiers.
30 * - C escapes in %#[] ?
31 * - Multibyte characters (done for format parsing, except scan groups)
32 * - Complex numbers? (C99 _Complex)
33 * - Boolean values? (C99 _Bool)
34 * - C99 NaN(n-char-sequence) missing. The n-char-sequence can be used
35 * to print the mantissa, e.g. NaN(0xc000000000000000)
36 * - Should we support the GNU %a alloc modifier? GNU has an ugly hack
37 * for %a, because C99 used %a for other purposes. If specified as
38 * %as or %a[ it is interpreted as the alloc modifier, otherwise as
39 * the C99 hex-float. This means that you cannot scan %as as a hex-float
40 * immediately followed by an 's'.
41 * - Scanning of collating symbols.
42 */
43
44/*************************************************************************
45 * Trio include files
46 */
47#include "triodef.h"
48#include "trio.h"
49#include "triop.h"
50#include "trionan.h"
51#if !defined(TRIO_MINIMAL)
52# include "triostr.h"
53#endif
54
55/**************************************************************************
56 *
57 * Definitions
58 *
59 *************************************************************************/
60
61#include <math.h>
62#include <limits.h>
63#include <float.h>
64
65#if (defined(__STDC_ISO_10646__) || defined(MB_LEN_MAX) \
66 || defined(USE_MULTIBYTE) || TRIO_WIDECHAR) \
67 && !defined(_WIN32_WCE)
68# define TRIO_COMPILER_SUPPORTS_MULTIBYTE
69# if !defined(MB_LEN_MAX)
70# define MB_LEN_MAX 6
71# endif
72#endif
73
74#if (defined(TRIO_COMPILER_MSVC) && (_MSC_VER >= 1100)) || defined(TRIO_COMPILER_BCB)
75# define TRIO_COMPILER_SUPPORTS_MSVC_INT
76#endif
77
78#if defined(_WIN32_WCE)
79#include <wincecompat.h>
80#endif
81
82/*************************************************************************
83 * Generic definitions
84 */
85
86#if !(defined(DEBUG) || defined(NDEBUG))
87# define NDEBUG
88#endif
89
90#include <assert.h>
91#include <ctype.h>
92#if !defined(TRIO_COMPILER_SUPPORTS_C99)
93# define isblank(x) (((x)==32) || ((x)==9))
94#endif
95#if defined(TRIO_COMPILER_ANCIENT)
96# include <varargs.h>
97#else
98# include <stdarg.h>
99#endif
100#include <stddef.h>
101
102#ifdef HAVE_ERRNO_H
103#include <errno.h>
104#endif
105
106#ifndef NULL
107# define NULL 0
108#endif
109#define NIL ((char)0)
110#ifndef FALSE
111# define FALSE (1 == 0)
112# define TRUE (! FALSE)
113#endif
114#define BOOLEAN_T int
115
116/* mincore() can be used for debugging purposes */
117#define VALID(x) (NULL != (x))
118
119#if TRIO_ERRORS
120 /*
121 * Encode the error code and the position. This is decoded
122 * with TRIO_ERROR_CODE and TRIO_ERROR_POSITION.
123 */
124# define TRIO_ERROR_RETURN(x,y) (- ((x) + ((y) << 8)))
125#else
126# define TRIO_ERROR_RETURN(x,y) (-1)
127#endif
128
129typedef unsigned long trio_flags_t;
130
131
132/*************************************************************************
133 * Platform specific definitions
134 */
135#if defined(TRIO_PLATFORM_UNIX)
136# include <unistd.h>
137# include <signal.h>
138# include <locale.h>
139# define USE_LOCALE
140#endif /* TRIO_PLATFORM_UNIX */
141#if defined(TRIO_PLATFORM_VMS)
142# include <unistd.h>
143#endif
144#if defined(TRIO_PLATFORM_WIN32)
145# if defined(_WIN32_WCE)
146# include <wincecompat.h>
147# else
148# include <io.h>
149# define read _read
150# define write _write
151# endif
152#endif /* TRIO_PLATFORM_WIN32 */
153
154#if TRIO_WIDECHAR
155# if defined(TRIO_COMPILER_SUPPORTS_ISO94)
156# include <wchar.h>
157# include <wctype.h>
158typedef wchar_t trio_wchar_t;
159typedef wint_t trio_wint_t;
160# else
161typedef char trio_wchar_t;
162typedef int trio_wint_t;
163# define WCONST(x) L ## x
164# define WEOF EOF
165# define iswalnum(x) isalnum(x)
166# define iswalpha(x) isalpha(x)
167# define iswblank(x) isblank(x)
168# define iswcntrl(x) iscntrl(x)
169# define iswdigit(x) isdigit(x)
170# define iswgraph(x) isgraph(x)
171# define iswlower(x) islower(x)
172# define iswprint(x) isprint(x)
173# define iswpunct(x) ispunct(x)
174# define iswspace(x) isspace(x)
175# define iswupper(x) isupper(x)
176# define iswxdigit(x) isxdigit(x)
177# endif
178#endif
179
180
181/*************************************************************************
182 * Compiler dependent definitions
183 */
184
185/* Support for long long */
186#ifndef __cplusplus
187# if !defined(USE_LONGLONG)
188# if defined(TRIO_COMPILER_GCC) && !defined(__STRICT_ANSI__)
189# define USE_LONGLONG
190# elif defined(TRIO_COMPILER_SUNPRO)
191# define USE_LONGLONG
192# elif defined(_LONG_LONG) || defined(_LONGLONG)
193# define USE_LONGLONG
194# endif
195# endif
196#endif
197
198/* The extra long numbers */
199#if defined(USE_LONGLONG)
200typedef signed long long int trio_longlong_t;
201typedef unsigned long long int trio_ulonglong_t;
202#elif defined(TRIO_COMPILER_SUPPORTS_MSVC_INT)
203typedef signed __int64 trio_longlong_t;
204typedef unsigned __int64 trio_ulonglong_t;
205#else
206typedef TRIO_SIGNED long int trio_longlong_t;
207typedef unsigned long int trio_ulonglong_t;
208#endif
209
210/* Maximal and fixed integer types */
211#if defined(TRIO_COMPILER_SUPPORTS_C99)
212# include <stdint.h>
213typedef intmax_t trio_intmax_t;
214typedef uintmax_t trio_uintmax_t;
215typedef int8_t trio_int8_t;
216typedef int16_t trio_int16_t;
217typedef int32_t trio_int32_t;
218typedef int64_t trio_int64_t;
219#elif defined(TRIO_COMPILER_SUPPORTS_UNIX98)
220# include <inttypes.h>
221typedef intmax_t trio_intmax_t;
222typedef uintmax_t trio_uintmax_t;
223typedef int8_t trio_int8_t;
224typedef int16_t trio_int16_t;
225typedef int32_t trio_int32_t;
226typedef int64_t trio_int64_t;
227#elif defined(TRIO_COMPILER_SUPPORTS_MSVC_INT)
228typedef trio_longlong_t trio_intmax_t;
229typedef trio_ulonglong_t trio_uintmax_t;
230typedef __int8 trio_int8_t;
231typedef __int16 trio_int16_t;
232typedef __int32 trio_int32_t;
233typedef __int64 trio_int64_t;
234#else
235typedef trio_longlong_t trio_intmax_t;
236typedef trio_ulonglong_t trio_uintmax_t;
237# if defined(TRIO_INT8_T)
238typedef TRIO_INT8_T trio_int8_t;
239# else
240typedef TRIO_SIGNED char trio_int8_t;
241# endif
242# if defined(TRIO_INT16_T)
243typedef TRIO_INT16_T trio_int16_t;
244# else
245typedef TRIO_SIGNED short trio_int16_t;
246# endif
247# if defined(TRIO_INT32_T)
248typedef TRIO_INT32_T trio_int32_t;
249# else
250typedef TRIO_SIGNED int trio_int32_t;
251# endif
252# if defined(TRIO_INT64_T)
253typedef TRIO_INT64_T trio_int64_t;
254# else
255typedef trio_longlong_t trio_int64_t;
256# endif
257#endif
258
259#if (!(defined(TRIO_COMPILER_SUPPORTS_C99) \
260 || defined(TRIO_COMPILER_SUPPORTS_UNIX01))) \
261 && !defined(_WIN32_WCE)
262# define floorl(x) floor((double)(x))
263# define fmodl(x,y) fmod((double)(x),(double)(y))
264# define powl(x,y) pow((double)(x),(double)(y))
265#endif
266
267#define TRIO_FABS(x) (((x) < 0.0) ? -(x) : (x))
268
269/*************************************************************************
270 * Internal Definitions
271 */
272
273#ifndef DECIMAL_DIG
274# define DECIMAL_DIG DBL_DIG
275#endif
276
277/* Long double sizes */
278#ifdef LDBL_DIG
279# define MAX_MANTISSA_DIGITS LDBL_DIG
280# define MAX_EXPONENT_DIGITS 4
281# define MAX_DOUBLE_DIGITS LDBL_MAX_10_EXP
282#else
283# define MAX_MANTISSA_DIGITS DECIMAL_DIG
284# define MAX_EXPONENT_DIGITS 3
285# define MAX_DOUBLE_DIGITS DBL_MAX_10_EXP
286#endif
287
288#if defined(TRIO_COMPILER_ANCIENT) || !defined(LDBL_DIG)
289# undef LDBL_DIG
290# undef LDBL_MANT_DIG
291# undef LDBL_EPSILON
292# define LDBL_DIG DBL_DIG
293# define LDBL_MANT_DIG DBL_MANT_DIG
294# define LDBL_EPSILON DBL_EPSILON
295#endif
296
297/* The maximal number of digits is for base 2 */
298#define MAX_CHARS_IN(x) (sizeof(x) * CHAR_BIT)
299/* The width of a pointer. The number of bits in a hex digit is 4 */
300#define POINTER_WIDTH ((sizeof("0x") - 1) + sizeof(trio_pointer_t) * CHAR_BIT / 4)
301
302/* Infinite and Not-A-Number for floating-point */
303#define INFINITE_LOWER "inf"
304#define INFINITE_UPPER "INF"
305#define LONG_INFINITE_LOWER "infinite"
306#define LONG_INFINITE_UPPER "INFINITE"
307#define NAN_LOWER "nan"
308#define NAN_UPPER "NAN"
309
310/* Various constants */
311enum {
312 TYPE_PRINT = 1,
313 TYPE_SCAN = 2,
314
315 /* Flags. FLAGS_LAST must be less than ULONG_MAX */
316 FLAGS_NEW = 0,
317 FLAGS_STICKY = 1,
318 FLAGS_SPACE = 2 * FLAGS_STICKY,
319 FLAGS_SHOWSIGN = 2 * FLAGS_SPACE,
320 FLAGS_LEFTADJUST = 2 * FLAGS_SHOWSIGN,
321 FLAGS_ALTERNATIVE = 2 * FLAGS_LEFTADJUST,
322 FLAGS_SHORT = 2 * FLAGS_ALTERNATIVE,
323 FLAGS_SHORTSHORT = 2 * FLAGS_SHORT,
324 FLAGS_LONG = 2 * FLAGS_SHORTSHORT,
325 FLAGS_QUAD = 2 * FLAGS_LONG,
326 FLAGS_LONGDOUBLE = 2 * FLAGS_QUAD,
327 FLAGS_SIZE_T = 2 * FLAGS_LONGDOUBLE,
328 FLAGS_PTRDIFF_T = 2 * FLAGS_SIZE_T,
329 FLAGS_INTMAX_T = 2 * FLAGS_PTRDIFF_T,
330 FLAGS_NILPADDING = 2 * FLAGS_INTMAX_T,
331 FLAGS_UNSIGNED = 2 * FLAGS_NILPADDING,
332 FLAGS_UPPER = 2 * FLAGS_UNSIGNED,
333 FLAGS_WIDTH = 2 * FLAGS_UPPER,
334 FLAGS_WIDTH_PARAMETER = 2 * FLAGS_WIDTH,
335 FLAGS_PRECISION = 2 * FLAGS_WIDTH_PARAMETER,
336 FLAGS_PRECISION_PARAMETER = 2 * FLAGS_PRECISION,
337 FLAGS_BASE = 2 * FLAGS_PRECISION_PARAMETER,
338 FLAGS_BASE_PARAMETER = 2 * FLAGS_BASE,
339 FLAGS_FLOAT_E = 2 * FLAGS_BASE_PARAMETER,
340 FLAGS_FLOAT_G = 2 * FLAGS_FLOAT_E,
341 FLAGS_QUOTE = 2 * FLAGS_FLOAT_G,
342 FLAGS_WIDECHAR = 2 * FLAGS_QUOTE,
343 FLAGS_ALLOC = 2 * FLAGS_WIDECHAR,
344 FLAGS_IGNORE = 2 * FLAGS_ALLOC,
345 FLAGS_IGNORE_PARAMETER = 2 * FLAGS_IGNORE,
346 FLAGS_VARSIZE_PARAMETER = 2 * FLAGS_IGNORE_PARAMETER,
347 FLAGS_FIXED_SIZE = 2 * FLAGS_VARSIZE_PARAMETER,
348 FLAGS_LAST = FLAGS_FIXED_SIZE,
349 /* Reused flags */
350 FLAGS_EXCLUDE = FLAGS_SHORT,
351 FLAGS_USER_DEFINED = FLAGS_IGNORE,
352 FLAGS_ROUNDING = FLAGS_INTMAX_T,
353 /* Compounded flags */
354 FLAGS_ALL_VARSIZES = FLAGS_LONG | FLAGS_QUAD | FLAGS_INTMAX_T | FLAGS_PTRDIFF_T | FLAGS_SIZE_T,
355 FLAGS_ALL_SIZES = FLAGS_ALL_VARSIZES | FLAGS_SHORTSHORT | FLAGS_SHORT,
356
357 NO_POSITION = -1,
358 NO_WIDTH = 0,
359 NO_PRECISION = -1,
360 NO_SIZE = -1,
361
362 /* Do not change these */
363 NO_BASE = -1,
364 MIN_BASE = 2,
365 MAX_BASE = 36,
366 BASE_BINARY = 2,
367 BASE_OCTAL = 8,
368 BASE_DECIMAL = 10,
369 BASE_HEX = 16,
370
371 /* Maximal number of allowed parameters */
372 MAX_PARAMETERS = 64,
373 /* Maximal number of characters in class */
374 MAX_CHARACTER_CLASS = UCHAR_MAX + 1,
375
376 /* Maximal string lengths for user-defined specifiers */
377 MAX_USER_NAME = 64,
378 MAX_USER_DATA = 256,
379
380 /* Maximal length of locale separator strings */
381 MAX_LOCALE_SEPARATOR_LENGTH = MB_LEN_MAX,
382 /* Maximal number of integers in grouping */
383 MAX_LOCALE_GROUPS = 64,
384
385 /* Initial size of asprintf buffer */
386 DYNAMIC_START_SIZE = 32
387};
388
389#define NO_GROUPING ((int)CHAR_MAX)
390
391/* Fundamental formatting parameter types */
392#define FORMAT_UNKNOWN 0
393#define FORMAT_INT 1
394#define FORMAT_DOUBLE 2
395#define FORMAT_CHAR 3
396#define FORMAT_STRING 4
397#define FORMAT_POINTER 5
398#define FORMAT_COUNT 6
399#define FORMAT_PARAMETER 7
400#define FORMAT_GROUP 8
401#if TRIO_GNU
402# define FORMAT_ERRNO 9
403#endif
404#if TRIO_EXTENSION
405# define FORMAT_USER_DEFINED 10
406#endif
407
408/* Character constants */
409#define CHAR_IDENTIFIER '%'
410#define CHAR_BACKSLASH '\\'
411#define CHAR_QUOTE '\"'
412#define CHAR_ADJUST ' '
413
414/* Character class expressions */
415#define CLASS_ALNUM "[:alnum:]"
416#define CLASS_ALPHA "[:alpha:]"
417#define CLASS_BLANK "[:blank:]"
418#define CLASS_CNTRL "[:cntrl:]"
419#define CLASS_DIGIT "[:digit:]"
420#define CLASS_GRAPH "[:graph:]"
421#define CLASS_LOWER "[:lower:]"
422#define CLASS_PRINT "[:print:]"
423#define CLASS_PUNCT "[:punct:]"
424#define CLASS_SPACE "[:space:]"
425#define CLASS_UPPER "[:upper:]"
426#define CLASS_XDIGIT "[:xdigit:]"
427
428/*
429 * SPECIFIERS:
430 *
431 *
432 * a Hex-float
433 * A Hex-float
434 * c Character
435 * C Widechar character (wint_t)
436 * d Decimal
437 * e Float
438 * E Float
439 * F Float
440 * F Float
441 * g Float
442 * G Float
443 * i Integer
444 * m Error message
445 * n Count
446 * o Octal
447 * p Pointer
448 * s String
449 * S Widechar string (wchar_t *)
450 * u Unsigned
451 * x Hex
452 * X Hex
453 * [] Group
454 * <> User-defined
455 *
456 * Reserved:
457 *
458 * D Binary Coded Decimal %D(length,precision) (OS/390)
459 */
460#define SPECIFIER_CHAR 'c'
461#define SPECIFIER_STRING 's'
462#define SPECIFIER_DECIMAL 'd'
463#define SPECIFIER_INTEGER 'i'
464#define SPECIFIER_UNSIGNED 'u'
465#define SPECIFIER_OCTAL 'o'
466#define SPECIFIER_HEX 'x'
467#define SPECIFIER_HEX_UPPER 'X'
468#define SPECIFIER_FLOAT_E 'e'
469#define SPECIFIER_FLOAT_E_UPPER 'E'
470#define SPECIFIER_FLOAT_F 'f'
471#define SPECIFIER_FLOAT_F_UPPER 'F'
472#define SPECIFIER_FLOAT_G 'g'
473#define SPECIFIER_FLOAT_G_UPPER 'G'
474#define SPECIFIER_POINTER 'p'
475#define SPECIFIER_GROUP '['
476#define SPECIFIER_UNGROUP ']'
477#define SPECIFIER_COUNT 'n'
478#if TRIO_UNIX98
479# define SPECIFIER_CHAR_UPPER 'C'
480# define SPECIFIER_STRING_UPPER 'S'
481#endif
482#if TRIO_C99
483# define SPECIFIER_HEXFLOAT 'a'
484# define SPECIFIER_HEXFLOAT_UPPER 'A'
485#endif
486#if TRIO_GNU
487# define SPECIFIER_ERRNO 'm'
488#endif
489#if TRIO_EXTENSION
490# define SPECIFIER_BINARY 'b'
491# define SPECIFIER_BINARY_UPPER 'B'
492# define SPECIFIER_USER_DEFINED_BEGIN '<'
493# define SPECIFIER_USER_DEFINED_END '>'
494# define SPECIFIER_USER_DEFINED_SEPARATOR ':'
495#endif
496
497/*
498 * QUALIFIERS:
499 *
500 *
501 * Numbers = d,i,o,u,x,X
502 * Float = a,A,e,E,f,F,g,G
503 * String = s
504 * Char = c
505 *
506 *
507 * 9$ Position
508 * Use the 9th parameter. 9 can be any number between 1 and
509 * the maximal argument
510 *
511 * 9 Width
512 * Set width to 9. 9 can be any number, but must not be postfixed
513 * by '$'
514 *
515 * h Short
516 * Numbers:
517 * (unsigned) short int
518 *
519 * hh Short short
520 * Numbers:
521 * (unsigned) char
522 *
523 * l Long
524 * Numbers:
525 * (unsigned) long int
526 * String:
527 * as the S specifier
528 * Char:
529 * as the C specifier
530 *
531 * ll Long Long
532 * Numbers:
533 * (unsigned) long long int
534 *
535 * L Long Double
536 * Float
537 * long double
538 *
539 * # Alternative
540 * Float:
541 * Decimal-point is always present
542 * String:
543 * non-printable characters are handled as \number
544 *
545 * Spacing
546 *
547 * + Sign
548 *
549 * - Alignment
550 *
551 * . Precision
552 *
553 * * Parameter
554 * print: use parameter
555 * scan: no parameter (ignore)
556 *
557 * q Quad
558 *
559 * Z size_t
560 *
561 * w Widechar
562 *
563 * ' Thousands/quote
564 * Numbers:
565 * Integer part grouped in thousands
566 * Binary numbers:
567 * Number grouped in nibbles (4 bits)
568 * String:
569 * Quoted string
570 *
571 * j intmax_t
572 * t prtdiff_t
573 * z size_t
574 *
575 * ! Sticky
576 * @ Parameter (for both print and scan)
577 *
578 * I n-bit Integer
579 * Numbers:
580 * The following options exists
581 * I8 = 8-bit integer
582 * I16 = 16-bit integer
583 * I32 = 32-bit integer
584 * I64 = 64-bit integer
585 */
586#define QUALIFIER_POSITION '$'
587#define QUALIFIER_SHORT 'h'
588#define QUALIFIER_LONG 'l'
589#define QUALIFIER_LONG_UPPER 'L'
590#define QUALIFIER_ALTERNATIVE '#'
591#define QUALIFIER_SPACE ' '
592#define QUALIFIER_PLUS '+'
593#define QUALIFIER_MINUS '-'
594#define QUALIFIER_DOT '.'
595#define QUALIFIER_STAR '*'
596#define QUALIFIER_CIRCUMFLEX '^' /* For scanlists */
597#if TRIO_C99
598# define QUALIFIER_SIZE_T 'z'
599# define QUALIFIER_PTRDIFF_T 't'
600# define QUALIFIER_INTMAX_T 'j'
601#endif
602#if TRIO_BSD || TRIO_GNU
603# define QUALIFIER_QUAD 'q'
604#endif
605#if TRIO_GNU
606# define QUALIFIER_SIZE_T_UPPER 'Z'
607#endif
608#if TRIO_MISC
609# define QUALIFIER_WIDECHAR 'w'
610#endif
611#if TRIO_MICROSOFT
612# define QUALIFIER_FIXED_SIZE 'I'
613#endif
614#if TRIO_EXTENSION
615# define QUALIFIER_QUOTE '\''
616# define QUALIFIER_STICKY '!'
617# define QUALIFIER_VARSIZE '&' /* This should remain undocumented */
618# define QUALIFIER_PARAM '@' /* Experimental */
619# define QUALIFIER_COLON ':' /* For scanlists */
620# define QUALIFIER_EQUAL '=' /* For scanlists */
621# define QUALIFIER_ROUNDING_UPPER 'R'
622#endif
623
624
625/*************************************************************************
626 *
627 * Internal Structures
628 *
629 *************************************************************************/
630
631/* Parameters */
632typedef struct {
633 /* An indication of which entry in the data union is used */
634 int type;
635 /* The flags */
636 trio_flags_t flags;
637 /* The width qualifier */
638 int width;
639 /* The precision qualifier */
640 int precision;
641 /* The base qualifier */
642 int base;
643 /* The size for the variable size qualifier */
644 int varsize;
645 /* The marker of the end of the specifier */
646 int indexAfterSpecifier;
647 /* The data from the argument list */
648 union {
649 char *string;
650#if TRIO_WIDECHAR
651 trio_wchar_t *wstring;
652#endif
653 trio_pointer_t pointer;
654 union {
655 trio_intmax_t as_signed;
656 trio_uintmax_t as_unsigned;
657 } number;
658 double doubleNumber;
659 double *doublePointer;
660 trio_long_double_t longdoubleNumber;
661 trio_long_double_t *longdoublePointer;
662 int errorNumber;
663 } data;
664 /* For the user-defined specifier */
665 char user_name[MAX_USER_NAME];
666 char user_data[MAX_USER_DATA];
667} trio_parameter_t;
668
669/* Container for customized functions */
670typedef struct {
671 union {
672 trio_outstream_t out;
673 trio_instream_t in;
674 } stream;
675 trio_pointer_t closure;
676} trio_custom_t;
677
678/* General trio "class" */
679typedef struct _trio_class_t {
680 /*
681 * The function to write characters to a stream.
682 */
683 void (*OutStream) TRIO_PROTO((struct _trio_class_t *, int));
684 /*
685 * The function to read characters from a stream.
686 */
687 void (*InStream) TRIO_PROTO((struct _trio_class_t *, int *));
688 /*
689 * The current location in the stream.
690 */
691 trio_pointer_t location;
692 /*
693 * The character currently being processed.
694 */
695 int current;
696 /*
697 * The number of characters that would have been written/read
698 * if there had been sufficient space.
699 */
700 int processed;
701 /*
702 * The number of characters that are actually written/read.
703 * Processed and committed will only differ for the *nprintf
704 * and *nscanf functions.
705 */
706 int committed;
707 /*
708 * The upper limit of characters that may be written/read.
709 */
710 int max;
711 /*
712 * The last output error that was detected.
713 */
714 int error;
715} trio_class_t;
716
717/* References (for user-defined callbacks) */
718typedef struct _trio_reference_t {
719 trio_class_t *data;
720 trio_parameter_t *parameter;
721} trio_reference_t;
722
723/* Registered entries (for user-defined callbacks) */
724typedef struct _trio_userdef_t {
725 struct _trio_userdef_t *next;
726 trio_callback_t callback;
727 char *name;
728} trio_userdef_t;
729
730/*************************************************************************
731 *
732 * Internal Variables
733 *
734 *************************************************************************/
735
736static TRIO_CONST char rcsid[] = "@(#)$Id: trio.c 6076 2007-12-14 19:23:03Z vboxsync $";
737
738/*
739 * Need this to workaround a parser bug in HP C/iX compiler that fails
740 * to resolves macro definitions that includes type 'long double',
741 * e.g: va_arg(arg_ptr, long double)
742 */
743#if defined(TRIO_PLATFORM_MPEIX)
744static TRIO_CONST trio_long_double_t ___dummy_long_double = 0;
745#endif
746
747static TRIO_CONST char internalNullString[] = "(nil)";
748
749#if defined(USE_LOCALE)
750static struct lconv *internalLocaleValues = NULL;
751#endif
752
753/*
754 * UNIX98 says "in a locale where the radix character is not defined,
755 * the radix character defaults to a period (.)"
756 */
757static int internalDecimalPointLength = 1;
758static int internalThousandSeparatorLength = 1;
759static char internalDecimalPoint = '.';
760static char internalDecimalPointString[MAX_LOCALE_SEPARATOR_LENGTH + 1] = ".";
761static char internalThousandSeparator[MAX_LOCALE_SEPARATOR_LENGTH + 1] = ",";
762static char internalGrouping[MAX_LOCALE_GROUPS] = { (char)NO_GROUPING };
763
764static TRIO_CONST char internalDigitsLower[] = "0123456789abcdefghijklmnopqrstuvwxyz";
765static TRIO_CONST char internalDigitsUpper[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
766static BOOLEAN_T internalDigitsUnconverted = TRUE;
767static int internalDigitArray[128];
768#if TRIO_EXTENSION
769static BOOLEAN_T internalCollationUnconverted = TRUE;
770static char internalCollationArray[MAX_CHARACTER_CLASS][MAX_CHARACTER_CLASS];
771#endif
772
773#if TRIO_EXTENSION
774static TRIO_VOLATILE trio_callback_t internalEnterCriticalRegion = NULL;
775static TRIO_VOLATILE trio_callback_t internalLeaveCriticalRegion = NULL;
776static trio_userdef_t *internalUserDef = NULL;
777#endif
778
779
780/*************************************************************************
781 *
782 * Internal Functions
783 *
784 ************************************************************************/
785
786#if defined(TRIO_MINIMAL)
787# define TRIO_STRING_PUBLIC static
788# include "triostr.c"
789#endif /* defined(TRIO_MINIMAL) */
790
791/*************************************************************************
792 * TrioIsQualifier
793 *
794 * Description:
795 * Remember to add all new qualifiers to this function.
796 * QUALIFIER_POSITION must not be added.
797 */
798TRIO_PRIVATE BOOLEAN_T
799TrioIsQualifier
800TRIO_ARGS1((character),
801 TRIO_CONST char character)
802{
803 /* QUALIFIER_POSITION is not included */
804 switch (character)
805 {
806 case '0': case '1': case '2': case '3': case '4':
807 case '5': case '6': case '7': case '8': case '9':
808 case QUALIFIER_PLUS:
809 case QUALIFIER_MINUS:
810 case QUALIFIER_SPACE:
811 case QUALIFIER_DOT:
812 case QUALIFIER_STAR:
813 case QUALIFIER_ALTERNATIVE:
814 case QUALIFIER_SHORT:
815 case QUALIFIER_LONG:
816 case QUALIFIER_LONG_UPPER:
817 case QUALIFIER_CIRCUMFLEX:
818#if defined(QUALIFIER_SIZE_T)
819 case QUALIFIER_SIZE_T:
820#endif
821#if defined(QUALIFIER_PTRDIFF_T)
822 case QUALIFIER_PTRDIFF_T:
823#endif
824#if defined(QUALIFIER_INTMAX_T)
825 case QUALIFIER_INTMAX_T:
826#endif
827#if defined(QUALIFIER_QUAD)
828 case QUALIFIER_QUAD:
829#endif
830#if defined(QUALIFIER_SIZE_T_UPPER)
831 case QUALIFIER_SIZE_T_UPPER:
832#endif
833#if defined(QUALIFIER_WIDECHAR)
834 case QUALIFIER_WIDECHAR:
835#endif
836#if defined(QUALIFIER_QUOTE)
837 case QUALIFIER_QUOTE:
838#endif
839#if defined(QUALIFIER_STICKY)
840 case QUALIFIER_STICKY:
841#endif
842#if defined(QUALIFIER_VARSIZE)
843 case QUALIFIER_VARSIZE:
844#endif
845#if defined(QUALIFIER_PARAM)
846 case QUALIFIER_PARAM:
847#endif
848#if defined(QUALIFIER_FIXED_SIZE)
849 case QUALIFIER_FIXED_SIZE:
850#endif
851#if defined(QUALIFIER_ROUNDING_UPPER)
852 case QUALIFIER_ROUNDING_UPPER:
853#endif
854 return TRUE;
855 default:
856 return FALSE;
857 }
858}
859
860/*************************************************************************
861 * TrioSetLocale
862 */
863#if defined(USE_LOCALE)
864TRIO_PRIVATE void
865TrioSetLocale(TRIO_NOARGS)
866{
867 internalLocaleValues = (struct lconv *)localeconv();
868 if (internalLocaleValues)
869 {
870 if ((internalLocaleValues->decimal_point) &&
871 (internalLocaleValues->decimal_point[0] != NIL))
872 {
873 internalDecimalPointLength = trio_length(internalLocaleValues->decimal_point);
874 if (internalDecimalPointLength == 1)
875 {
876 internalDecimalPoint = internalLocaleValues->decimal_point[0];
877 }
878 else
879 {
880 internalDecimalPoint = NIL;
881 trio_copy_max(internalDecimalPointString,
882 sizeof(internalDecimalPointString),
883 internalLocaleValues->decimal_point);
884 }
885 }
886 if ((internalLocaleValues->thousands_sep) &&
887 (internalLocaleValues->thousands_sep[0] != NIL))
888 {
889 trio_copy_max(internalThousandSeparator,
890 sizeof(internalThousandSeparator),
891 internalLocaleValues->thousands_sep);
892 internalThousandSeparatorLength = trio_length(internalThousandSeparator);
893 }
894 if ((internalLocaleValues->grouping) &&
895 (internalLocaleValues->grouping[0] != NIL))
896 {
897 trio_copy_max(internalGrouping,
898 sizeof(internalGrouping),
899 internalLocaleValues->grouping);
900 }
901 }
902}
903#endif /* defined(USE_LOCALE) */
904
905TRIO_PRIVATE int
906TrioCalcThousandSeparatorLength
907TRIO_ARGS1((digits),
908 int digits)
909{
910#if TRIO_EXTENSION
911 int count = 0;
912 int step = NO_GROUPING;
913 char *groupingPointer = internalGrouping;
914
915 while (digits > 0)
916 {
917 if (*groupingPointer == CHAR_MAX)
918 {
919 /* Disable grouping */
920 break; /* while */
921 }
922 else if (*groupingPointer == 0)
923 {
924 /* Repeat last group */
925 if (step == NO_GROUPING)
926 {
927 /* Error in locale */
928 break; /* while */
929 }
930 }
931 else
932 {
933 step = *groupingPointer++;
934 }
935 if (digits > step)
936 count += internalThousandSeparatorLength;
937 digits -= step;
938 }
939 return count;
940#else
941 return 0;
942#endif
943}
944
945TRIO_PRIVATE BOOLEAN_T
946TrioFollowedBySeparator
947TRIO_ARGS1((position),
948 int position)
949{
950#if TRIO_EXTENSION
951 int step = 0;
952 char *groupingPointer = internalGrouping;
953
954 position--;
955 if (position == 0)
956 return FALSE;
957 while (position > 0)
958 {
959 if (*groupingPointer == CHAR_MAX)
960 {
961 /* Disable grouping */
962 break; /* while */
963 }
964 else if (*groupingPointer != 0)
965 {
966 step = *groupingPointer++;
967 }
968 if (step == 0)
969 break;
970 position -= step;
971 }
972 return (position == 0);
973#else
974 return FALSE;
975#endif
976}
977
978/*************************************************************************
979 * TrioGetPosition
980 *
981 * Get the %n$ position.
982 */
983TRIO_PRIVATE int
984TrioGetPosition
985TRIO_ARGS2((format, indexPointer),
986 TRIO_CONST char *format,
987 int *indexPointer)
988{
989#if TRIO_UNIX98
990 char *tmpformat;
991 int number = 0;
992 int index = *indexPointer;
993
994 number = (int)trio_to_long(&format[index], &tmpformat, BASE_DECIMAL);
995 index = (int)(tmpformat - format);
996 if ((number != 0) && (QUALIFIER_POSITION == format[index++]))
997 {
998 *indexPointer = index;
999 /*
1000 * number is decreased by 1, because n$ starts from 1, whereas
1001 * the array it is indexing starts from 0.
1002 */
1003 return number - 1;
1004 }
1005#endif
1006 return NO_POSITION;
1007}
1008
1009#if TRIO_EXTENSION
1010/*************************************************************************
1011 * TrioFindNamespace
1012 *
1013 * Find registered user-defined specifier.
1014 * The prev argument is used for optimization only.
1015 */
1016TRIO_PRIVATE trio_userdef_t *
1017TrioFindNamespace
1018TRIO_ARGS2((name, prev),
1019 TRIO_CONST char *name,
1020 trio_userdef_t **prev)
1021{
1022 trio_userdef_t *def;
1023
1024 if (internalEnterCriticalRegion)
1025 (void)internalEnterCriticalRegion(NULL);
1026
1027 for (def = internalUserDef; def; def = def->next)
1028 {
1029 /* Case-sensitive string comparison */
1030 if (trio_equal_case(def->name, name))
1031 break;
1032
1033 if (prev)
1034 *prev = def;
1035 }
1036
1037 if (internalLeaveCriticalRegion)
1038 (void)internalLeaveCriticalRegion(NULL);
1039
1040 return def;
1041}
1042#endif
1043
1044/*************************************************************************
1045 * TrioPower
1046 *
1047 * Description:
1048 * Calculate pow(base, exponent), where number and exponent are integers.
1049 */
1050TRIO_PRIVATE trio_long_double_t
1051TrioPower
1052TRIO_ARGS2((number, exponent),
1053 int number,
1054 int exponent)
1055{
1056 trio_long_double_t result;
1057
1058 if (number == 10)
1059 {
1060 switch (exponent)
1061 {
1062 /* Speed up calculation of common cases */
1063 case 0:
1064 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E-1);
1065 break;
1066 case 1:
1067 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+0);
1068 break;
1069 case 2:
1070 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+1);
1071 break;
1072 case 3:
1073 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+2);
1074 break;
1075 case 4:
1076 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+3);
1077 break;
1078 case 5:
1079 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+4);
1080 break;
1081 case 6:
1082 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+5);
1083 break;
1084 case 7:
1085 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+6);
1086 break;
1087 case 8:
1088 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+7);
1089 break;
1090 case 9:
1091 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+8);
1092 break;
1093 default:
1094 result = powl((trio_long_double_t)number,
1095 (trio_long_double_t)exponent);
1096 break;
1097 }
1098 }
1099 else
1100 {
1101 return powl((trio_long_double_t)number, (trio_long_double_t)exponent);
1102 }
1103 return result;
1104}
1105
1106/*************************************************************************
1107 * TrioLogarithm
1108 */
1109TRIO_PRIVATE double
1110TrioLogarithm
1111TRIO_ARGS2((number, base),
1112 double number,
1113 int base)
1114{
1115 double result;
1116
1117 if (number <= 0.0)
1118 {
1119 /* xlC crashes on log(0) */
1120 result = (number == 0.0) ? trio_ninf() : trio_nan();
1121 }
1122 else
1123 {
1124 if (base == 10)
1125 {
1126 result = log10(number);
1127 }
1128 else
1129 {
1130 result = log10(number) / log10((double)base);
1131 }
1132 }
1133 return result;
1134}
1135
1136/*************************************************************************
1137 * TrioLogarithmBase
1138 */
1139TRIO_PRIVATE double
1140TrioLogarithmBase
1141TRIO_ARGS1((base),
1142 int base)
1143{
1144 switch (base)
1145 {
1146 case BASE_BINARY : return 1.0;
1147 case BASE_OCTAL : return 3.0;
1148 case BASE_DECIMAL: return 3.321928094887362345;
1149 case BASE_HEX : return 4.0;
1150 default : return TrioLogarithm((double)base, 2);
1151 }
1152}
1153
1154/*************************************************************************
1155 * TrioParse
1156 *
1157 * Description:
1158 * Parse the format string
1159 */
1160TRIO_PRIVATE int
1161TrioParse
1162TRIO_ARGS5((type, format, parameters, arglist, argarray),
1163 int type,
1164 TRIO_CONST char *format,
1165 trio_parameter_t *parameters,
1166 va_list *arglist,
1167 trio_pointer_t *argarray)
1168{
1169 /* Count the number of times a parameter is referenced */
1170 unsigned short usedEntries[MAX_PARAMETERS];
1171 /* Parameter counters */
1172 int parameterPosition;
1173 int currentParam;
1174 int maxParam = -1;
1175 /* Utility variables */
1176 trio_flags_t flags;
1177 int width;
1178 int precision;
1179 int varsize;
1180 int base;
1181 int index; /* Index into formatting string */
1182 int dots; /* Count number of dots in modifier part */
1183 BOOLEAN_T positional; /* Does the specifier have a positional? */
1184 BOOLEAN_T gotSticky = FALSE; /* Are there any sticky modifiers at all? */
1185 /*
1186 * indices specifies the order in which the parameters must be
1187 * read from the va_args (this is necessary to handle positionals)
1188 */
1189 int indices[MAX_PARAMETERS];
1190 int pos = 0;
1191 /* Various variables */
1192 char ch;
1193#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
1194 int charlen;
1195#endif
1196 int save_errno;
1197 int i = -1;
1198 int num;
1199 char *tmpformat;
1200
1201 /* One and only one of arglist and argarray must be used */
1202 assert((arglist != NULL) ^ (argarray != NULL));
1203
1204 /*
1205 * The 'parameters' array is not initialized, but we need to
1206 * know which entries we have used.
1207 */
1208 memset(usedEntries, 0, sizeof(usedEntries));
1209
1210 save_errno = errno;
1211 index = 0;
1212 parameterPosition = 0;
1213#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
1214 (void)mblen(NULL, 0);
1215#endif
1216
1217 while (format[index])
1218 {
1219#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
1220 if (! isascii(format[index]))
1221 {
1222 /*
1223 * Multibyte characters cannot be legal specifiers or
1224 * modifiers, so we skip over them.
1225 */
1226 charlen = mblen(&format[index], MB_LEN_MAX);
1227 index += (charlen > 0) ? charlen : 1;
1228 continue; /* while */
1229 }
1230#endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */
1231 if (CHAR_IDENTIFIER == format[index++])
1232 {
1233 if (CHAR_IDENTIFIER == format[index])
1234 {
1235 index++;
1236 continue; /* while */
1237 }
1238
1239 flags = FLAGS_NEW;
1240 dots = 0;
1241 currentParam = TrioGetPosition(format, &index);
1242 positional = (NO_POSITION != currentParam);
1243 if (!positional)
1244 {
1245 /* We have no positional, get the next counter */
1246 currentParam = parameterPosition;
1247 }
1248 if(currentParam >= MAX_PARAMETERS)
1249 {
1250 /* Bail out completely to make the error more obvious */
1251 return TRIO_ERROR_RETURN(TRIO_ETOOMANY, index);
1252 }
1253
1254 if (currentParam > maxParam)
1255 maxParam = currentParam;
1256
1257 /* Default values */
1258 width = NO_WIDTH;
1259 precision = NO_PRECISION;
1260 base = NO_BASE;
1261 varsize = NO_SIZE;
1262
1263 while (TrioIsQualifier(format[index]))
1264 {
1265 ch = format[index++];
1266
1267 switch (ch)
1268 {
1269 case QUALIFIER_SPACE:
1270 flags |= FLAGS_SPACE;
1271 break;
1272
1273 case QUALIFIER_PLUS:
1274 flags |= FLAGS_SHOWSIGN;
1275 break;
1276
1277 case QUALIFIER_MINUS:
1278 flags |= FLAGS_LEFTADJUST;
1279 flags &= ~FLAGS_NILPADDING;
1280 break;
1281
1282 case QUALIFIER_ALTERNATIVE:
1283 flags |= FLAGS_ALTERNATIVE;
1284 break;
1285
1286 case QUALIFIER_DOT:
1287 if (dots == 0) /* Precision */
1288 {
1289 dots++;
1290
1291 /* Skip if no precision */
1292 if (QUALIFIER_DOT == format[index])
1293 break;
1294
1295 /* After the first dot we have the precision */
1296 flags |= FLAGS_PRECISION;
1297 if ((QUALIFIER_STAR == format[index])
1298#if defined(QUALIFIER_PARAM)
1299 || (QUALIFIER_PARAM == format[index])
1300#endif
1301 )
1302 {
1303 index++;
1304 flags |= FLAGS_PRECISION_PARAMETER;
1305
1306 precision = TrioGetPosition(format, &index);
1307 if (precision == NO_POSITION)
1308 {
1309 parameterPosition++;
1310 if (positional)
1311 precision = parameterPosition;
1312 else
1313 {
1314 precision = currentParam;
1315 currentParam = precision + 1;
1316 }
1317 }
1318 else
1319 {
1320 if (! positional)
1321 currentParam = precision + 1;
1322 if (width > maxParam)
1323 maxParam = precision;
1324 }
1325 if (currentParam > maxParam)
1326 maxParam = currentParam;
1327 }
1328 else
1329 {
1330 precision = trio_to_long(&format[index],
1331 &tmpformat,
1332 BASE_DECIMAL);
1333 index = (int)(tmpformat - format);
1334 }
1335 }
1336 else if (dots == 1) /* Base */
1337 {
1338 dots++;
1339
1340 /* After the second dot we have the base */
1341 flags |= FLAGS_BASE;
1342 if ((QUALIFIER_STAR == format[index])
1343#if defined(QUALIFIER_PARAM)
1344 || (QUALIFIER_PARAM == format[index])
1345#endif
1346 )
1347 {
1348 index++;
1349 flags |= FLAGS_BASE_PARAMETER;
1350 base = TrioGetPosition(format, &index);
1351 if (base == NO_POSITION)
1352 {
1353 parameterPosition++;
1354 if (positional)
1355 base = parameterPosition;
1356 else
1357 {
1358 base = currentParam;
1359 currentParam = base + 1;
1360 }
1361 }
1362 else
1363 {
1364 if (! positional)
1365 currentParam = base + 1;
1366 if (base > maxParam)
1367 maxParam = base;
1368 }
1369 if (currentParam > maxParam)
1370 maxParam = currentParam;
1371 }
1372 else
1373 {
1374 base = trio_to_long(&format[index],
1375 &tmpformat,
1376 BASE_DECIMAL);
1377 if (base > MAX_BASE)
1378 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1379 index = (int)(tmpformat - format);
1380 }
1381 }
1382 else
1383 {
1384 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1385 }
1386 break; /* QUALIFIER_DOT */
1387
1388#if defined(QUALIFIER_PARAM)
1389 case QUALIFIER_PARAM:
1390 type = TYPE_PRINT;
1391 /* FALLTHROUGH */
1392#endif
1393 case QUALIFIER_STAR:
1394 /* This has different meanings for print and scan */
1395 if (TYPE_PRINT == type)
1396 {
1397 /* Read with from parameter */
1398 flags |= (FLAGS_WIDTH | FLAGS_WIDTH_PARAMETER);
1399 width = TrioGetPosition(format, &index);
1400 if (width == NO_POSITION)
1401 {
1402 parameterPosition++;
1403 if (positional)
1404 width = parameterPosition;
1405 else
1406 {
1407 width = currentParam;
1408 currentParam = width + 1;
1409 }
1410 }
1411 else
1412 {
1413 if (! positional)
1414 currentParam = width + 1;
1415 if (width > maxParam)
1416 maxParam = width;
1417 }
1418 if (currentParam > maxParam)
1419 maxParam = currentParam;
1420 }
1421 else
1422 {
1423 /* Scan, but do not store result */
1424 flags |= FLAGS_IGNORE;
1425 }
1426
1427 break; /* QUALIFIER_STAR */
1428
1429 case '0':
1430 if (! (flags & FLAGS_LEFTADJUST))
1431 flags |= FLAGS_NILPADDING;
1432 /* FALLTHROUGH */
1433 case '1': case '2': case '3': case '4':
1434 case '5': case '6': case '7': case '8': case '9':
1435 flags |= FLAGS_WIDTH;
1436 /* &format[index - 1] is used to "rewind" the read
1437 * character from format
1438 */
1439 width = trio_to_long(&format[index - 1],
1440 &tmpformat,
1441 BASE_DECIMAL);
1442 index = (int)(tmpformat - format);
1443 break;
1444
1445 case QUALIFIER_SHORT:
1446 if (flags & FLAGS_SHORTSHORT)
1447 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1448 else if (flags & FLAGS_SHORT)
1449 flags |= FLAGS_SHORTSHORT;
1450 else
1451 flags |= FLAGS_SHORT;
1452 break;
1453
1454 case QUALIFIER_LONG:
1455 if (flags & FLAGS_QUAD)
1456 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1457 else if (flags & FLAGS_LONG)
1458 flags |= FLAGS_QUAD;
1459 else
1460 flags |= FLAGS_LONG;
1461 break;
1462
1463 case QUALIFIER_LONG_UPPER:
1464 flags |= FLAGS_LONGDOUBLE;
1465 break;
1466
1467#if defined(QUALIFIER_SIZE_T)
1468 case QUALIFIER_SIZE_T:
1469 flags |= FLAGS_SIZE_T;
1470 /* Modify flags for later truncation of number */
1471 if (sizeof(size_t) == sizeof(trio_ulonglong_t))
1472 flags |= FLAGS_QUAD;
1473 else if (sizeof(size_t) == sizeof(long))
1474 flags |= FLAGS_LONG;
1475 break;
1476#endif
1477
1478#if defined(QUALIFIER_PTRDIFF_T)
1479 case QUALIFIER_PTRDIFF_T:
1480 flags |= FLAGS_PTRDIFF_T;
1481 if (sizeof(ptrdiff_t) == sizeof(trio_ulonglong_t))
1482 flags |= FLAGS_QUAD;
1483 else if (sizeof(ptrdiff_t) == sizeof(long))
1484 flags |= FLAGS_LONG;
1485 break;
1486#endif
1487
1488#if defined(QUALIFIER_INTMAX_T)
1489 case QUALIFIER_INTMAX_T:
1490 flags |= FLAGS_INTMAX_T;
1491 if (sizeof(trio_intmax_t) == sizeof(trio_ulonglong_t))
1492 flags |= FLAGS_QUAD;
1493 else if (sizeof(trio_intmax_t) == sizeof(long))
1494 flags |= FLAGS_LONG;
1495 break;
1496#endif
1497
1498#if defined(QUALIFIER_QUAD)
1499 case QUALIFIER_QUAD:
1500 flags |= FLAGS_QUAD;
1501 break;
1502#endif
1503
1504#if defined(QUALIFIER_FIXED_SIZE)
1505 case QUALIFIER_FIXED_SIZE:
1506 if (flags & FLAGS_FIXED_SIZE)
1507 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1508
1509 if (flags & (FLAGS_ALL_SIZES | FLAGS_LONGDOUBLE |
1510 FLAGS_WIDECHAR | FLAGS_VARSIZE_PARAMETER))
1511 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1512
1513 if ((format[index] == '6') &&
1514 (format[index + 1] == '4'))
1515 {
1516 varsize = sizeof(trio_int64_t);
1517 index += 2;
1518 }
1519 else if ((format[index] == '3') &&
1520 (format[index + 1] == '2'))
1521 {
1522 varsize = sizeof(trio_int32_t);
1523 index += 2;
1524 }
1525 else if ((format[index] == '1') &&
1526 (format[index + 1] == '6'))
1527 {
1528 varsize = sizeof(trio_int16_t);
1529 index += 2;
1530 }
1531 else if (format[index] == '8')
1532 {
1533 varsize = sizeof(trio_int8_t);
1534 index++;
1535 }
1536 else
1537 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1538
1539 flags |= FLAGS_FIXED_SIZE;
1540 break;
1541#endif
1542
1543#if defined(QUALIFIER_WIDECHAR)
1544 case QUALIFIER_WIDECHAR:
1545 flags |= FLAGS_WIDECHAR;
1546 break;
1547#endif
1548
1549#if defined(QUALIFIER_SIZE_T_UPPER)
1550 case QUALIFIER_SIZE_T_UPPER:
1551 break;
1552#endif
1553
1554#if defined(QUALIFIER_QUOTE)
1555 case QUALIFIER_QUOTE:
1556 flags |= FLAGS_QUOTE;
1557 break;
1558#endif
1559
1560#if defined(QUALIFIER_STICKY)
1561 case QUALIFIER_STICKY:
1562 flags |= FLAGS_STICKY;
1563 gotSticky = TRUE;
1564 break;
1565#endif
1566
1567#if defined(QUALIFIER_VARSIZE)
1568 case QUALIFIER_VARSIZE:
1569 flags |= FLAGS_VARSIZE_PARAMETER;
1570 parameterPosition++;
1571 if (positional)
1572 varsize = parameterPosition;
1573 else
1574 {
1575 varsize = currentParam;
1576 currentParam = varsize + 1;
1577 }
1578 if (currentParam > maxParam)
1579 maxParam = currentParam;
1580 break;
1581#endif
1582
1583#if defined(QUALIFIER_ROUNDING_UPPER)
1584 case QUALIFIER_ROUNDING_UPPER:
1585 flags |= FLAGS_ROUNDING;
1586 break;
1587#endif
1588
1589 default:
1590 /* Bail out completely to make the error more obvious */
1591 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1592 }
1593 } /* while qualifier */
1594
1595 /*
1596 * Parameters only need the type and value. The value is
1597 * read later.
1598 */
1599 if (flags & FLAGS_WIDTH_PARAMETER)
1600 {
1601 usedEntries[width] += 1;
1602 parameters[pos].type = FORMAT_PARAMETER;
1603 parameters[pos].flags = 0;
1604 indices[width] = pos;
1605 width = pos++;
1606 }
1607 if (flags & FLAGS_PRECISION_PARAMETER)
1608 {
1609 usedEntries[precision] += 1;
1610 parameters[pos].type = FORMAT_PARAMETER;
1611 parameters[pos].flags = 0;
1612 indices[precision] = pos;
1613 precision = pos++;
1614 }
1615 if (flags & FLAGS_BASE_PARAMETER)
1616 {
1617 usedEntries[base] += 1;
1618 parameters[pos].type = FORMAT_PARAMETER;
1619 parameters[pos].flags = 0;
1620 indices[base] = pos;
1621 base = pos++;
1622 }
1623 if (flags & FLAGS_VARSIZE_PARAMETER)
1624 {
1625 usedEntries[varsize] += 1;
1626 parameters[pos].type = FORMAT_PARAMETER;
1627 parameters[pos].flags = 0;
1628 indices[varsize] = pos;
1629 varsize = pos++;
1630 }
1631
1632 indices[currentParam] = pos;
1633
1634 switch (format[index++])
1635 {
1636#if defined(SPECIFIER_CHAR_UPPER)
1637 case SPECIFIER_CHAR_UPPER:
1638 flags |= FLAGS_WIDECHAR;
1639 /* FALLTHROUGH */
1640#endif
1641 case SPECIFIER_CHAR:
1642 if (flags & FLAGS_LONG)
1643 flags |= FLAGS_WIDECHAR;
1644 else if (flags & FLAGS_SHORT)
1645 flags &= ~FLAGS_WIDECHAR;
1646 parameters[pos].type = FORMAT_CHAR;
1647 break;
1648
1649#if defined(SPECIFIER_STRING_UPPER)
1650 case SPECIFIER_STRING_UPPER:
1651 flags |= FLAGS_WIDECHAR;
1652 /* FALLTHROUGH */
1653#endif
1654 case SPECIFIER_STRING:
1655 if (flags & FLAGS_LONG)
1656 flags |= FLAGS_WIDECHAR;
1657 else if (flags & FLAGS_SHORT)
1658 flags &= ~FLAGS_WIDECHAR;
1659 parameters[pos].type = FORMAT_STRING;
1660 break;
1661
1662 case SPECIFIER_GROUP:
1663 if (TYPE_SCAN == type)
1664 {
1665 int depth = 1;
1666 parameters[pos].type = FORMAT_GROUP;
1667 if (format[index] == QUALIFIER_CIRCUMFLEX)
1668 index++;
1669 if (format[index] == SPECIFIER_UNGROUP)
1670 index++;
1671 if (format[index] == QUALIFIER_MINUS)
1672 index++;
1673 /* Skip nested brackets */
1674 while (format[index] != NIL)
1675 {
1676 if (format[index] == SPECIFIER_GROUP)
1677 {
1678 depth++;
1679 }
1680 else if (format[index] == SPECIFIER_UNGROUP)
1681 {
1682 if (--depth <= 0)
1683 {
1684 index++;
1685 break;
1686 }
1687 }
1688 index++;
1689 }
1690 }
1691 break;
1692
1693 case SPECIFIER_INTEGER:
1694 parameters[pos].type = FORMAT_INT;
1695 break;
1696
1697 case SPECIFIER_UNSIGNED:
1698 flags |= FLAGS_UNSIGNED;
1699 parameters[pos].type = FORMAT_INT;
1700 break;
1701
1702 case SPECIFIER_DECIMAL:
1703 /* Disable base modifier */
1704 flags &= ~FLAGS_BASE_PARAMETER;
1705 base = BASE_DECIMAL;
1706 parameters[pos].type = FORMAT_INT;
1707 break;
1708
1709 case SPECIFIER_OCTAL:
1710 flags |= FLAGS_UNSIGNED;
1711 flags &= ~FLAGS_BASE_PARAMETER;
1712 base = BASE_OCTAL;
1713 parameters[pos].type = FORMAT_INT;
1714 break;
1715
1716#if defined(SPECIFIER_BINARY)
1717 case SPECIFIER_BINARY_UPPER:
1718 flags |= FLAGS_UPPER;
1719 /* FALLTHROUGH */
1720 case SPECIFIER_BINARY:
1721 flags |= FLAGS_NILPADDING;
1722 flags &= ~FLAGS_BASE_PARAMETER;
1723 base = BASE_BINARY;
1724 parameters[pos].type = FORMAT_INT;
1725 break;
1726#endif
1727
1728 case SPECIFIER_HEX_UPPER:
1729 flags |= FLAGS_UPPER;
1730 /* FALLTHROUGH */
1731 case SPECIFIER_HEX:
1732 flags |= FLAGS_UNSIGNED;
1733 flags &= ~FLAGS_BASE_PARAMETER;
1734 base = BASE_HEX;
1735 parameters[pos].type = FORMAT_INT;
1736 break;
1737
1738 case SPECIFIER_FLOAT_E_UPPER:
1739 flags |= FLAGS_UPPER;
1740 /* FALLTHROUGH */
1741 case SPECIFIER_FLOAT_E:
1742 flags |= FLAGS_FLOAT_E;
1743 parameters[pos].type = FORMAT_DOUBLE;
1744 break;
1745
1746 case SPECIFIER_FLOAT_G_UPPER:
1747 flags |= FLAGS_UPPER;
1748 /* FALLTHROUGH */
1749 case SPECIFIER_FLOAT_G:
1750 flags |= FLAGS_FLOAT_G;
1751 parameters[pos].type = FORMAT_DOUBLE;
1752 break;
1753
1754 case SPECIFIER_FLOAT_F_UPPER:
1755 flags |= FLAGS_UPPER;
1756 /* FALLTHROUGH */
1757 case SPECIFIER_FLOAT_F:
1758 parameters[pos].type = FORMAT_DOUBLE;
1759 break;
1760
1761 case SPECIFIER_POINTER:
1762 if (sizeof(trio_pointer_t) == sizeof(trio_ulonglong_t))
1763 flags |= FLAGS_QUAD;
1764 else if (sizeof(trio_pointer_t) == sizeof(long))
1765 flags |= FLAGS_LONG;
1766 parameters[pos].type = FORMAT_POINTER;
1767 break;
1768
1769 case SPECIFIER_COUNT:
1770 parameters[pos].type = FORMAT_COUNT;
1771 break;
1772
1773#if defined(SPECIFIER_HEXFLOAT)
1774# if defined(SPECIFIER_HEXFLOAT_UPPER)
1775 case SPECIFIER_HEXFLOAT_UPPER:
1776 flags |= FLAGS_UPPER;
1777 /* FALLTHROUGH */
1778# endif
1779 case SPECIFIER_HEXFLOAT:
1780 base = BASE_HEX;
1781 parameters[pos].type = FORMAT_DOUBLE;
1782 break;
1783#endif
1784
1785#if defined(FORMAT_ERRNO)
1786 case SPECIFIER_ERRNO:
1787 parameters[pos].type = FORMAT_ERRNO;
1788 break;
1789#endif
1790
1791#if defined(SPECIFIER_USER_DEFINED_BEGIN)
1792 case SPECIFIER_USER_DEFINED_BEGIN:
1793 {
1794 unsigned int max;
1795 int without_namespace = TRUE;
1796
1797 parameters[pos].type = FORMAT_USER_DEFINED;
1798 parameters[pos].user_name[0] = NIL;
1799 tmpformat = (char *)&format[index];
1800
1801 while ((ch = format[index]))
1802 {
1803 index++;
1804 if (ch == SPECIFIER_USER_DEFINED_END)
1805 {
1806 if (without_namespace)
1807 {
1808 /* We must get the handle first */
1809 parameters[pos].type = FORMAT_PARAMETER;
1810 parameters[pos].indexAfterSpecifier = index;
1811 parameters[pos].flags = FLAGS_USER_DEFINED;
1812 /* Adjust parameters for insertion of new one */
1813 pos++;
1814 usedEntries[currentParam] += 1;
1815 parameters[pos].type = FORMAT_USER_DEFINED;
1816 currentParam++;
1817 indices[currentParam] = pos;
1818 if (currentParam > maxParam)
1819 maxParam = currentParam;
1820 }
1821 /* Copy the user data */
1822 max = (unsigned int)(&format[index] - tmpformat);
1823 if (max > MAX_USER_DATA)
1824 max = MAX_USER_DATA;
1825 trio_copy_max(parameters[pos].user_data,
1826 max,
1827 tmpformat);
1828 break; /* while */
1829 }
1830 if (ch == SPECIFIER_USER_DEFINED_SEPARATOR)
1831 {
1832 without_namespace = FALSE;
1833 /* Copy the namespace for later looking-up */
1834 max = (int)(&format[index] - tmpformat);
1835 if (max > MAX_USER_NAME)
1836 max = MAX_USER_NAME;
1837 trio_copy_max(parameters[pos].user_name,
1838 max,
1839 tmpformat);
1840 tmpformat = (char *)&format[index];
1841 }
1842 }
1843 if (ch != SPECIFIER_USER_DEFINED_END)
1844 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1845 }
1846 break;
1847#endif /* defined(SPECIFIER_USER_DEFINED_BEGIN) */
1848
1849 default:
1850 /* Bail out completely to make the error more obvious */
1851 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1852 }
1853
1854 /* Count the number of times this entry has been used */
1855 usedEntries[currentParam] += 1;
1856
1857 /* Find last sticky parameters */
1858 if (gotSticky && !(flags & FLAGS_STICKY))
1859 {
1860 for (i = pos - 1; i >= 0; i--)
1861 {
1862 if (parameters[i].type == FORMAT_PARAMETER)
1863 continue;
1864 if ((parameters[i].flags & FLAGS_STICKY) &&
1865 (parameters[i].type == parameters[pos].type))
1866 {
1867 /* Do not overwrite current qualifiers */
1868 flags |= (parameters[i].flags & (unsigned long)~FLAGS_STICKY);
1869 if (width == NO_WIDTH)
1870 width = parameters[i].width;
1871 if (precision == NO_PRECISION)
1872 precision = parameters[i].precision;
1873 if (base == NO_BASE)
1874 base = parameters[i].base;
1875 break;
1876 }
1877 }
1878 }
1879
1880 parameters[pos].indexAfterSpecifier = index;
1881 parameters[pos].flags = flags;
1882 parameters[pos].width = width;
1883 parameters[pos].precision = precision;
1884 parameters[pos].base = (base == NO_BASE) ? BASE_DECIMAL : base;
1885 parameters[pos].varsize = varsize;
1886 pos++;
1887
1888 if (! positional)
1889 parameterPosition++;
1890
1891 } /* if identifier */
1892
1893 } /* while format characters left */
1894
1895 for (num = 0; num <= maxParam; num++)
1896 {
1897 if (usedEntries[num] != 1)
1898 {
1899 if (usedEntries[num] == 0) /* gap detected */
1900 return TRIO_ERROR_RETURN(TRIO_EGAP, num);
1901 else /* double references detected */
1902 return TRIO_ERROR_RETURN(TRIO_EDBLREF, num);
1903 }
1904
1905 i = indices[num];
1906
1907 /*
1908 * FORMAT_PARAMETERS are only present if they must be read,
1909 * so it makes no sense to check the ignore flag (besides,
1910 * the flags variable is not set for that particular type)
1911 */
1912 if ((parameters[i].type != FORMAT_PARAMETER) &&
1913 (parameters[i].flags & FLAGS_IGNORE))
1914 continue; /* for all arguments */
1915
1916 /*
1917 * The stack arguments are read according to ANSI C89
1918 * default argument promotions:
1919 *
1920 * char = int
1921 * short = int
1922 * unsigned char = unsigned int
1923 * unsigned short = unsigned int
1924 * float = double
1925 *
1926 * In addition to the ANSI C89 these types are read (the
1927 * default argument promotions of C99 has not been
1928 * considered yet)
1929 *
1930 * long long
1931 * long double
1932 * size_t
1933 * ptrdiff_t
1934 * intmax_t
1935 */
1936 switch (parameters[i].type)
1937 {
1938 case FORMAT_GROUP:
1939 case FORMAT_STRING:
1940#if TRIO_WIDECHAR
1941 if (flags & FLAGS_WIDECHAR)
1942 {
1943 parameters[i].data.wstring = (argarray == NULL)
1944 ? va_arg(*arglist, trio_wchar_t *)
1945 : (trio_wchar_t *)(argarray[num]);
1946 }
1947 else
1948#endif
1949 {
1950 parameters[i].data.string = (argarray == NULL)
1951 ? va_arg(*arglist, char *)
1952 : (char *)(argarray[num]);
1953 }
1954 break;
1955
1956#if defined(FORMAT_USER_DEFINED)
1957 case FORMAT_USER_DEFINED:
1958#endif
1959 case FORMAT_POINTER:
1960 case FORMAT_COUNT:
1961 case FORMAT_UNKNOWN:
1962 parameters[i].data.pointer = (argarray == NULL)
1963 ? va_arg(*arglist, trio_pointer_t )
1964 : argarray[num];
1965 break;
1966
1967 case FORMAT_CHAR:
1968 case FORMAT_INT:
1969 if (TYPE_SCAN == type)
1970 {
1971 if (argarray == NULL)
1972 parameters[i].data.pointer =
1973 (trio_pointer_t)va_arg(*arglist, trio_pointer_t);
1974 else
1975 {
1976 if (parameters[i].type == FORMAT_CHAR)
1977 parameters[i].data.pointer =
1978 (trio_pointer_t)((char *)argarray[num]);
1979 else if (parameters[i].flags & FLAGS_SHORT)
1980 parameters[i].data.pointer =
1981 (trio_pointer_t)((short *)argarray[num]);
1982 else
1983 parameters[i].data.pointer =
1984 (trio_pointer_t)((int *)argarray[num]);
1985 }
1986 }
1987 else
1988 {
1989#if defined(QUALIFIER_VARSIZE) || defined(QUALIFIER_FIXED_SIZE)
1990 if (parameters[i].flags
1991 & (FLAGS_VARSIZE_PARAMETER | FLAGS_FIXED_SIZE))
1992 {
1993 if (parameters[i].flags & FLAGS_VARSIZE_PARAMETER)
1994 {
1995 /*
1996 * Variable sizes are mapped onto the fixed sizes, in
1997 * accordance with integer promotion.
1998 *
1999 * Please note that this may not be portable, as we
2000 * only guess the size, not the layout of the numbers.
2001 * For example, if int is little-endian, and long is
2002 * big-endian, then this will fail.
2003 */
2004 varsize = (int)parameters[parameters[i].varsize].data.number.as_unsigned;
2005 }
2006 else
2007 {
2008 /* Used for the I<bits> modifiers */
2009 varsize = parameters[i].varsize;
2010 }
2011 parameters[i].flags &= ~FLAGS_ALL_VARSIZES;
2012
2013 if (varsize <= (int)sizeof(int))
2014 ;
2015 else if (varsize <= (int)sizeof(long))
2016 parameters[i].flags |= FLAGS_LONG;
2017#if defined(QUALIFIER_INTMAX_T)
2018 else if (varsize <= (int)sizeof(trio_longlong_t))
2019 parameters[i].flags |= FLAGS_QUAD;
2020 else
2021 parameters[i].flags |= FLAGS_INTMAX_T;
2022#else
2023 else
2024 parameters[i].flags |= FLAGS_QUAD;
2025#endif
2026 }
2027#endif /* defined(QUALIFIER_VARSIZE) */
2028#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
2029 if (parameters[i].flags & FLAGS_SIZE_T)
2030 parameters[i].data.number.as_unsigned = (argarray == NULL)
2031 ? (trio_uintmax_t)va_arg(*arglist, size_t)
2032 : (trio_uintmax_t)(*((size_t *)argarray[num]));
2033 else
2034#endif
2035#if defined(QUALIFIER_PTRDIFF_T)
2036 if (parameters[i].flags & FLAGS_PTRDIFF_T)
2037 parameters[i].data.number.as_unsigned = (argarray == NULL)
2038 ? (trio_uintmax_t)va_arg(*arglist, ptrdiff_t)
2039 : (trio_uintmax_t)(*((ptrdiff_t *)argarray[num]));
2040 else
2041#endif
2042#if defined(QUALIFIER_INTMAX_T)
2043 if (parameters[i].flags & FLAGS_INTMAX_T)
2044 parameters[i].data.number.as_unsigned = (argarray == NULL)
2045 ? (trio_uintmax_t)va_arg(*arglist, trio_intmax_t)
2046 : (trio_uintmax_t)(*((trio_intmax_t *)argarray[num]));
2047 else
2048#endif
2049 if (parameters[i].flags & FLAGS_QUAD)
2050 parameters[i].data.number.as_unsigned = (argarray == NULL)
2051 ? (trio_uintmax_t)va_arg(*arglist, trio_ulonglong_t)
2052 : (trio_uintmax_t)(*((trio_ulonglong_t *)argarray[num]));
2053 else if (parameters[i].flags & FLAGS_LONG)
2054 parameters[i].data.number.as_unsigned = (argarray == NULL)
2055 ? (trio_uintmax_t)va_arg(*arglist, long)
2056 : (trio_uintmax_t)(*((long *)argarray[num]));
2057 else
2058 {
2059 if (argarray == NULL)
2060 parameters[i].data.number.as_unsigned = (trio_uintmax_t)va_arg(*arglist, int);
2061 else
2062 {
2063 if (parameters[i].type == FORMAT_CHAR)
2064 parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((char *)argarray[num]));
2065 else if (parameters[i].flags & FLAGS_SHORT)
2066 parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((short *)argarray[num]));
2067 else
2068 parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((int *)argarray[num]));
2069 }
2070 }
2071 }
2072 break;
2073
2074 case FORMAT_PARAMETER:
2075 /*
2076 * The parameter for the user-defined specifier is a pointer,
2077 * whereas the rest (width, precision, base) uses an integer.
2078 */
2079 if (parameters[i].flags & FLAGS_USER_DEFINED)
2080 parameters[i].data.pointer = (argarray == NULL)
2081 ? va_arg(*arglist, trio_pointer_t )
2082 : argarray[num];
2083 else
2084 parameters[i].data.number.as_unsigned = (argarray == NULL)
2085 ? (trio_uintmax_t)va_arg(*arglist, int)
2086 : (trio_uintmax_t)(*((int *)argarray[num]));
2087 break;
2088
2089 case FORMAT_DOUBLE:
2090 if (TYPE_SCAN == type)
2091 {
2092 if (parameters[i].flags & FLAGS_LONGDOUBLE)
2093 parameters[i].data.longdoublePointer = (argarray == NULL)
2094 ? va_arg(*arglist, trio_long_double_t *)
2095 : (trio_long_double_t *)argarray[num];
2096 else
2097 {
2098 if (parameters[i].flags & FLAGS_LONG)
2099 parameters[i].data.doublePointer = (argarray == NULL)
2100 ? va_arg(*arglist, double *)
2101 : (double *)argarray[num];
2102 else
2103 parameters[i].data.doublePointer = (argarray == NULL)
2104 ? (double *)va_arg(*arglist, float *)
2105 : (double *)((float *)argarray[num]);
2106 }
2107 }
2108 else
2109 {
2110 if (parameters[i].flags & FLAGS_LONGDOUBLE)
2111 parameters[i].data.longdoubleNumber = (argarray == NULL)
2112 ? va_arg(*arglist, trio_long_double_t)
2113 : (trio_long_double_t)(*((trio_long_double_t *)argarray[num]));
2114 else
2115 {
2116 if (argarray == NULL)
2117 parameters[i].data.longdoubleNumber =
2118 (trio_long_double_t)va_arg(*arglist, double);
2119 else
2120 {
2121 if (parameters[i].flags & FLAGS_SHORT)
2122 parameters[i].data.longdoubleNumber =
2123 (trio_long_double_t)(*((float *)argarray[num]));
2124 else
2125 parameters[i].data.longdoubleNumber =
2126 (trio_long_double_t)(*((double *)argarray[num]));
2127 }
2128 }
2129 }
2130 break;
2131
2132#if defined(FORMAT_ERRNO)
2133 case FORMAT_ERRNO:
2134 parameters[i].data.errorNumber = save_errno;
2135 break;
2136#endif
2137
2138 default:
2139 break;
2140 }
2141 } /* for all specifiers */
2142 return num;
2143}
2144
2145
2146/*************************************************************************
2147 *
2148 * FORMATTING
2149 *
2150 ************************************************************************/
2151
2152
2153/*************************************************************************
2154 * TrioWriteNumber
2155 *
2156 * Description:
2157 * Output a number.
2158 * The complexity of this function is a result of the complexity
2159 * of the dependencies of the flags.
2160 */
2161TRIO_PRIVATE void
2162TrioWriteNumber
2163TRIO_ARGS6((self, number, flags, width, precision, base),
2164 trio_class_t *self,
2165 trio_uintmax_t number,
2166 trio_flags_t flags,
2167 int width,
2168 int precision,
2169 int base)
2170{
2171 BOOLEAN_T isNegative;
2172 BOOLEAN_T isNumberZero;
2173 BOOLEAN_T isPrecisionZero;
2174 BOOLEAN_T ignoreNumber;
2175 char buffer[MAX_CHARS_IN(trio_uintmax_t) * (1 + MAX_LOCALE_SEPARATOR_LENGTH) + 1];
2176 char *bufferend;
2177 char *pointer;
2178 TRIO_CONST char *digits;
2179 int i;
2180 int length;
2181 char *p;
2182 int count;
2183
2184 assert(VALID(self));
2185 assert(VALID(self->OutStream));
2186 assert(((base >= MIN_BASE) && (base <= MAX_BASE)) || (base == NO_BASE));
2187
2188 digits = (flags & FLAGS_UPPER) ? internalDigitsUpper : internalDigitsLower;
2189 if (base == NO_BASE)
2190 base = BASE_DECIMAL;
2191
2192 isNumberZero = (number == 0);
2193 isPrecisionZero = (precision == 0);
2194 ignoreNumber = (isNumberZero
2195 && isPrecisionZero
2196 && !((flags & FLAGS_ALTERNATIVE) && (base == BASE_OCTAL)));
2197
2198 if (flags & FLAGS_UNSIGNED)
2199 {
2200 isNegative = FALSE;
2201 flags &= ~FLAGS_SHOWSIGN;
2202 }
2203 else
2204 {
2205 isNegative = ((trio_intmax_t)number < 0);
2206 if (isNegative)
2207 number = -((trio_intmax_t)number);
2208 }
2209
2210 if (flags & FLAGS_QUAD)
2211 number &= (trio_ulonglong_t)-1;
2212 else if (flags & FLAGS_LONG)
2213 number &= (unsigned long)-1;
2214 else
2215 number &= (unsigned int)-1;
2216
2217 /* Build number */
2218 pointer = bufferend = &buffer[sizeof(buffer) - 1];
2219 *pointer-- = NIL;
2220 for (i = 1; i < (int)sizeof(buffer); i++)
2221 {
2222 *pointer-- = digits[number % base];
2223 number /= base;
2224 if (number == 0)
2225 break;
2226
2227 if ((flags & FLAGS_QUOTE) && TrioFollowedBySeparator(i + 1))
2228 {
2229 /*
2230 * We are building the number from the least significant
2231 * to the most significant digit, so we have to copy the
2232 * thousand separator backwards
2233 */
2234 length = internalThousandSeparatorLength;
2235 if (((int)(pointer - buffer) - length) > 0)
2236 {
2237 p = &internalThousandSeparator[length - 1];
2238 while (length-- > 0)
2239 *pointer-- = *p--;
2240 }
2241 }
2242 }
2243
2244 if (! ignoreNumber)
2245 {
2246 /* Adjust width */
2247 width -= (bufferend - pointer) - 1;
2248 }
2249
2250 /* Adjust precision */
2251 if (NO_PRECISION != precision)
2252 {
2253 precision -= (bufferend - pointer) - 1;
2254 if (precision < 0)
2255 precision = 0;
2256 flags |= FLAGS_NILPADDING;
2257 }
2258
2259 /* Calculate padding */
2260 count = (! ((flags & FLAGS_LEFTADJUST) || (precision == NO_PRECISION)))
2261 ? precision
2262 : 0;
2263
2264 /* Adjust width further */
2265 if (isNegative || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE))
2266 width--;
2267 if ((flags & FLAGS_ALTERNATIVE) && !isNumberZero)
2268 {
2269 switch (base)
2270 {
2271 case BASE_BINARY:
2272 case BASE_HEX:
2273 width -= 2;
2274 break;
2275 case BASE_OCTAL:
2276 if (!(flags & FLAGS_NILPADDING) || (count == 0))
2277 width--;
2278 break;
2279 default:
2280 break;
2281 }
2282 }
2283
2284 /* Output prefixes spaces if needed */
2285 if (! ((flags & FLAGS_LEFTADJUST) ||
2286 ((flags & FLAGS_NILPADDING) && (precision == NO_PRECISION))))
2287 {
2288 while (width-- > count)
2289 self->OutStream(self, CHAR_ADJUST);
2290 }
2291
2292 /* width has been adjusted for signs and alternatives */
2293 if (isNegative)
2294 self->OutStream(self, '-');
2295 else if (flags & FLAGS_SHOWSIGN)
2296 self->OutStream(self, '+');
2297 else if (flags & FLAGS_SPACE)
2298 self->OutStream(self, ' ');
2299
2300 /* Prefix is not written when the value is zero */
2301 if ((flags & FLAGS_ALTERNATIVE) && !isNumberZero)
2302 {
2303 switch (base)
2304 {
2305 case BASE_BINARY:
2306 self->OutStream(self, '0');
2307 self->OutStream(self, (flags & FLAGS_UPPER) ? 'B' : 'b');
2308 break;
2309
2310 case BASE_OCTAL:
2311 if (!(flags & FLAGS_NILPADDING) || (count == 0))
2312 self->OutStream(self, '0');
2313 break;
2314
2315 case BASE_HEX:
2316 self->OutStream(self, '0');
2317 self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x');
2318 break;
2319
2320 default:
2321 break;
2322 } /* switch base */
2323 }
2324
2325 /* Output prefixed zero padding if needed */
2326 if (flags & FLAGS_NILPADDING)
2327 {
2328 if (precision == NO_PRECISION)
2329 precision = width;
2330 while (precision-- > 0)
2331 {
2332 self->OutStream(self, '0');
2333 width--;
2334 }
2335 }
2336
2337 if (! ignoreNumber)
2338 {
2339 /* Output the number itself */
2340 while (*(++pointer))
2341 {
2342 self->OutStream(self, *pointer);
2343 }
2344 }
2345
2346 /* Output trailing spaces if needed */
2347 if (flags & FLAGS_LEFTADJUST)
2348 {
2349 while (width-- > 0)
2350 self->OutStream(self, CHAR_ADJUST);
2351 }
2352}
2353
2354/*************************************************************************
2355 * TrioWriteStringCharacter
2356 *
2357 * Description:
2358 * Output a single character of a string
2359 */
2360TRIO_PRIVATE void
2361TrioWriteStringCharacter
2362TRIO_ARGS3((self, ch, flags),
2363 trio_class_t *self,
2364 int ch,
2365 trio_flags_t flags)
2366{
2367 if (flags & FLAGS_ALTERNATIVE)
2368 {
2369 if (! isprint(ch))
2370 {
2371 /*
2372 * Non-printable characters are converted to C escapes or
2373 * \number, if no C escape exists.
2374 */
2375 self->OutStream(self, CHAR_BACKSLASH);
2376 switch (ch)
2377 {
2378 case '\007': self->OutStream(self, 'a'); break;
2379 case '\b': self->OutStream(self, 'b'); break;
2380 case '\f': self->OutStream(self, 'f'); break;
2381 case '\n': self->OutStream(self, 'n'); break;
2382 case '\r': self->OutStream(self, 'r'); break;
2383 case '\t': self->OutStream(self, 't'); break;
2384 case '\v': self->OutStream(self, 'v'); break;
2385 case '\\': self->OutStream(self, '\\'); break;
2386 default:
2387 self->OutStream(self, 'x');
2388 TrioWriteNumber(self, (trio_uintmax_t)ch,
2389 FLAGS_UNSIGNED | FLAGS_NILPADDING,
2390 2, 2, BASE_HEX);
2391 break;
2392 }
2393 }
2394 else if (ch == CHAR_BACKSLASH)
2395 {
2396 self->OutStream(self, CHAR_BACKSLASH);
2397 self->OutStream(self, CHAR_BACKSLASH);
2398 }
2399 else
2400 {
2401 self->OutStream(self, ch);
2402 }
2403 }
2404 else
2405 {
2406 self->OutStream(self, ch);
2407 }
2408}
2409
2410/*************************************************************************
2411 * TrioWriteString
2412 *
2413 * Description:
2414 * Output a string
2415 */
2416TRIO_PRIVATE void
2417TrioWriteString
2418TRIO_ARGS5((self, string, flags, width, precision),
2419 trio_class_t *self,
2420 TRIO_CONST char *string,
2421 trio_flags_t flags,
2422 int width,
2423 int precision)
2424{
2425 int length;
2426 int ch;
2427
2428 assert(VALID(self));
2429 assert(VALID(self->OutStream));
2430
2431 if (string == NULL)
2432 {
2433 string = internalNullString;
2434 length = sizeof(internalNullString) - 1;
2435 /* Disable quoting for the null pointer */
2436 flags &= (~FLAGS_QUOTE);
2437 width = 0;
2438 }
2439 else
2440 {
2441 length = trio_length(string);
2442 }
2443 if ((NO_PRECISION != precision) &&
2444 (precision < length))
2445 {
2446 length = precision;
2447 }
2448 width -= length;
2449
2450 if (flags & FLAGS_QUOTE)
2451 self->OutStream(self, CHAR_QUOTE);
2452
2453 if (! (flags & FLAGS_LEFTADJUST))
2454 {
2455 while (width-- > 0)
2456 self->OutStream(self, CHAR_ADJUST);
2457 }
2458
2459 while (length-- > 0)
2460 {
2461 /* The ctype parameters must be an unsigned char (or EOF) */
2462 ch = (int)((unsigned char)(*string++));
2463 TrioWriteStringCharacter(self, ch, flags);
2464 }
2465
2466 if (flags & FLAGS_LEFTADJUST)
2467 {
2468 while (width-- > 0)
2469 self->OutStream(self, CHAR_ADJUST);
2470 }
2471 if (flags & FLAGS_QUOTE)
2472 self->OutStream(self, CHAR_QUOTE);
2473}
2474
2475/*************************************************************************
2476 * TrioWriteWideStringCharacter
2477 *
2478 * Description:
2479 * Output a wide string as a multi-byte sequence
2480 */
2481#if TRIO_WIDECHAR
2482TRIO_PRIVATE int
2483TrioWriteWideStringCharacter
2484TRIO_ARGS4((self, wch, flags, width),
2485 trio_class_t *self,
2486 trio_wchar_t wch,
2487 trio_flags_t flags,
2488 int width)
2489{
2490 int size;
2491 int i;
2492 int ch;
2493 char *string;
2494 char buffer[MB_LEN_MAX + 1];
2495
2496 if (width == NO_WIDTH)
2497 width = sizeof(buffer);
2498
2499 size = wctomb(buffer, wch);
2500 if ((size <= 0) || (size > width) || (buffer[0] == NIL))
2501 return 0;
2502
2503 string = buffer;
2504 i = size;
2505 while ((width >= i) && (width-- > 0) && (i-- > 0))
2506 {
2507 /* The ctype parameters must be an unsigned char (or EOF) */
2508 ch = (int)((unsigned char)(*string++));
2509 TrioWriteStringCharacter(self, ch, flags);
2510 }
2511 return size;
2512}
2513#endif /* TRIO_WIDECHAR */
2514
2515/*************************************************************************
2516 * TrioWriteWideString
2517 *
2518 * Description:
2519 * Output a wide character string as a multi-byte string
2520 */
2521#if TRIO_WIDECHAR
2522TRIO_PRIVATE void
2523TrioWriteWideString
2524TRIO_ARGS5((self, wstring, flags, width, precision),
2525 trio_class_t *self,
2526 TRIO_CONST trio_wchar_t *wstring,
2527 trio_flags_t flags,
2528 int width,
2529 int precision)
2530{
2531 int length;
2532 int size;
2533
2534 assert(VALID(self));
2535 assert(VALID(self->OutStream));
2536
2537#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
2538 (void)mblen(NULL, 0);
2539#endif
2540
2541 if (wstring == NULL)
2542 {
2543 TrioWriteString(self, NULL, flags, width, precision);
2544 return;
2545 }
2546
2547 if (NO_PRECISION == precision)
2548 {
2549 length = INT_MAX;
2550 }
2551 else
2552 {
2553 length = precision;
2554 width -= length;
2555 }
2556
2557 if (flags & FLAGS_QUOTE)
2558 self->OutStream(self, CHAR_QUOTE);
2559
2560 if (! (flags & FLAGS_LEFTADJUST))
2561 {
2562 while (width-- > 0)
2563 self->OutStream(self, CHAR_ADJUST);
2564 }
2565
2566 while (length > 0)
2567 {
2568 size = TrioWriteWideStringCharacter(self, *wstring++, flags, length);
2569 if (size == 0)
2570 break; /* while */
2571 length -= size;
2572 }
2573
2574 if (flags & FLAGS_LEFTADJUST)
2575 {
2576 while (width-- > 0)
2577 self->OutStream(self, CHAR_ADJUST);
2578 }
2579 if (flags & FLAGS_QUOTE)
2580 self->OutStream(self, CHAR_QUOTE);
2581}
2582#endif /* TRIO_WIDECHAR */
2583
2584/*************************************************************************
2585 * TrioWriteDouble
2586 *
2587 * http://wwwold.dkuug.dk/JTC1/SC22/WG14/www/docs/dr_211.htm
2588 *
2589 * "5.2.4.2.2 paragraph #4
2590 *
2591 * The accuracy [...] is implementation defined, as is the accuracy
2592 * of the conversion between floating-point internal representations
2593 * and string representations performed by the libray routine in
2594 * <stdio.h>"
2595 */
2596/* FIXME: handle all instances of constant long-double number (L)
2597 * and *l() math functions.
2598 */
2599TRIO_PRIVATE void
2600TrioWriteDouble
2601TRIO_ARGS6((self, number, flags, width, precision, base),
2602 trio_class_t *self,
2603 trio_long_double_t number,
2604 trio_flags_t flags,
2605 int width,
2606 int precision,
2607 int base)
2608{
2609 trio_long_double_t integerNumber;
2610 trio_long_double_t fractionNumber;
2611 trio_long_double_t workNumber;
2612 int integerDigits;
2613 int fractionDigits;
2614 int exponentDigits;
2615 int baseDigits;
2616 int integerThreshold;
2617 int fractionThreshold;
2618 int expectedWidth;
2619 int exponent = 0;
2620 unsigned int uExponent = 0;
2621 int exponentBase;
2622 trio_long_double_t dblBase;
2623 trio_long_double_t dblIntegerBase;
2624 trio_long_double_t dblFractionBase;
2625 trio_long_double_t integerAdjust;
2626 trio_long_double_t fractionAdjust;
2627 BOOLEAN_T isNegative;
2628 BOOLEAN_T isExponentNegative = FALSE;
2629 BOOLEAN_T requireTwoDigitExponent;
2630 BOOLEAN_T isHex;
2631 TRIO_CONST char *digits;
2632 char *groupingPointer;
2633 int i;
2634 int index;
2635 BOOLEAN_T hasOnlyZeroes;
2636 int zeroes = 0;
2637 register int trailingZeroes;
2638 BOOLEAN_T keepTrailingZeroes;
2639 BOOLEAN_T keepDecimalPoint;
2640 trio_long_double_t epsilon;
2641
2642 assert(VALID(self));
2643 assert(VALID(self->OutStream));
2644 assert(((base >= MIN_BASE) && (base <= MAX_BASE)) || (base == NO_BASE));
2645
2646 /* Determine sign and look for special quantities */
2647 switch (trio_fpclassify_and_signbit(number, &isNegative))
2648 {
2649 case TRIO_FP_NAN:
2650 TrioWriteString(self,
2651 (flags & FLAGS_UPPER)
2652 ? NAN_UPPER
2653 : NAN_LOWER,
2654 flags, width, precision);
2655 return;
2656
2657 case TRIO_FP_INFINITE:
2658 if (isNegative)
2659 {
2660 /* Negative infinity */
2661 TrioWriteString(self,
2662 (flags & FLAGS_UPPER)
2663 ? "-" INFINITE_UPPER
2664 : "-" INFINITE_LOWER,
2665 flags, width, precision);
2666 return;
2667 }
2668 else
2669 {
2670 /* Positive infinity */
2671 TrioWriteString(self,
2672 (flags & FLAGS_UPPER)
2673 ? INFINITE_UPPER
2674 : INFINITE_LOWER,
2675 flags, width, precision);
2676 return;
2677 }
2678
2679 default:
2680 /* Finitude */
2681 break;
2682 }
2683
2684 /* Normal numbers */
2685 if (flags & FLAGS_LONGDOUBLE)
2686 {
2687 baseDigits = (base == 10)
2688 ? LDBL_DIG
2689 : (int)floor(LDBL_MANT_DIG / TrioLogarithmBase(base));
2690 epsilon = LDBL_EPSILON;
2691 }
2692 else if (flags & FLAGS_SHORT)
2693 {
2694 baseDigits = (base == BASE_DECIMAL)
2695 ? FLT_DIG
2696 : (int)floor(FLT_MANT_DIG / TrioLogarithmBase(base));
2697 epsilon = FLT_EPSILON;
2698 }
2699 else
2700 {
2701 baseDigits = (base == BASE_DECIMAL)
2702 ? DBL_DIG
2703 : (int)floor(DBL_MANT_DIG / TrioLogarithmBase(base));
2704 epsilon = DBL_EPSILON;
2705 }
2706
2707 digits = (flags & FLAGS_UPPER) ? internalDigitsUpper : internalDigitsLower;
2708 isHex = (base == BASE_HEX);
2709 if (base == NO_BASE)
2710 base = BASE_DECIMAL;
2711 dblBase = (trio_long_double_t)base;
2712 keepTrailingZeroes = !( (flags & FLAGS_ROUNDING) ||
2713 ( (flags & FLAGS_FLOAT_G) &&
2714 !(flags & FLAGS_ALTERNATIVE) ) );
2715
2716 if (flags & FLAGS_ROUNDING)
2717 precision = baseDigits;
2718
2719 if (precision == NO_PRECISION)
2720 {
2721 if (isHex)
2722 {
2723 keepTrailingZeroes = FALSE;
2724 precision = FLT_MANT_DIG;
2725 }
2726 else
2727 {
2728 precision = FLT_DIG;
2729 }
2730 }
2731
2732 if (isNegative)
2733 number = -number;
2734
2735 if (isHex)
2736 flags |= FLAGS_FLOAT_E;
2737
2738 if (flags & FLAGS_FLOAT_G)
2739 {
2740 if (precision == 0)
2741 precision = 1;
2742
2743 if ((number < 1.0E-4) || (number > powl(base,
2744 (trio_long_double_t)precision)))
2745 {
2746 /* Use scientific notation */
2747 flags |= FLAGS_FLOAT_E;
2748 }
2749 else if (number < 1.0)
2750 {
2751 /*
2752 * Use normal notation. If the integer part of the number is
2753 * zero, then adjust the precision to include leading fractional
2754 * zeros.
2755 */
2756 workNumber = TrioLogarithm(number, base);
2757 workNumber = TRIO_FABS(workNumber);
2758 if (workNumber - floorl(workNumber) < 0.001)
2759 workNumber--;
2760 zeroes = (int)floorl(workNumber);
2761 }
2762 }
2763
2764 if (flags & FLAGS_FLOAT_E)
2765 {
2766 /* Scale the number */
2767 workNumber = TrioLogarithm(number, base);
2768 if (trio_isinf(workNumber) == -1)
2769 {
2770 exponent = 0;
2771 /* Undo setting */
2772 if (flags & FLAGS_FLOAT_G)
2773 flags &= ~FLAGS_FLOAT_E;
2774 }
2775 else
2776 {
2777 exponent = (int)floorl(workNumber);
2778 number /= powl(dblBase, (trio_long_double_t)exponent);
2779 isExponentNegative = (exponent < 0);
2780 uExponent = (isExponentNegative) ? -exponent : exponent;
2781 if (isHex)
2782 uExponent *= 4; /* log16(2) */
2783 /* No thousand separators */
2784 flags &= ~FLAGS_QUOTE;
2785 }
2786 }
2787
2788 integerNumber = floorl(number);
2789 fractionNumber = number - integerNumber;
2790
2791 /*
2792 * Truncated number.
2793 *
2794 * Precision is number of significant digits for FLOAT_G
2795 * and number of fractional digits for others.
2796 */
2797 integerDigits = (integerNumber > epsilon)
2798 ? 1 + (int)TrioLogarithm(integerNumber, base)
2799 : 1;
2800 fractionDigits = ((flags & FLAGS_FLOAT_G) && (zeroes == 0))
2801 ? precision - integerDigits
2802 : zeroes + precision;
2803
2804 dblFractionBase = TrioPower(base, fractionDigits);
2805
2806 workNumber = number + 0.5 / dblFractionBase;
2807 if (floorl(number) != floorl(workNumber))
2808 {
2809 if (flags & FLAGS_FLOAT_E)
2810 {
2811 /* Adjust if number was rounded up one digit (ie. 0.99 to 1.00) */
2812 exponent++;
2813 isExponentNegative = (exponent < 0);
2814 uExponent = (isExponentNegative) ? -exponent : exponent;
2815 if (isHex)
2816 uExponent *= 4; /* log16(2) */
2817 workNumber = (number + 0.5 / dblFractionBase) / dblBase;
2818 integerNumber = floorl(workNumber);
2819 fractionNumber = workNumber - integerNumber;
2820 }
2821 else
2822 {
2823 /* Adjust if number was rounded up one digit (ie. 99 to 100) */
2824 integerNumber = floorl(number + 0.5);
2825 fractionNumber = 0.0;
2826 integerDigits = (integerNumber > epsilon)
2827 ? 1 + (int)TrioLogarithm(integerNumber, base)
2828 : 1;
2829 }
2830 }
2831
2832 /* Estimate accuracy */
2833 integerAdjust = fractionAdjust = 0.5;
2834 if (flags & FLAGS_ROUNDING)
2835 {
2836 if (integerDigits > baseDigits)
2837 {
2838 integerThreshold = baseDigits;
2839 fractionDigits = 0;
2840 dblFractionBase = 1.0;
2841 fractionThreshold = 0;
2842 precision = 0; /* Disable decimal-point */
2843 integerAdjust = TrioPower(base, integerDigits - integerThreshold - 1);
2844 fractionAdjust = 0.0;
2845 }
2846 else
2847 {
2848 integerThreshold = integerDigits;
2849 fractionThreshold = fractionDigits - integerThreshold;
2850 fractionAdjust = 1.0;
2851 }
2852 }
2853 else
2854 {
2855 integerThreshold = INT_MAX;
2856 fractionThreshold = INT_MAX;
2857 }
2858
2859 /*
2860 * Calculate expected width.
2861 * sign + integer part + thousands separators + decimal point
2862 * + fraction + exponent
2863 */
2864 fractionAdjust /= dblFractionBase;
2865 hasOnlyZeroes = (floorl((fractionNumber + fractionAdjust) * dblFractionBase) < epsilon);
2866 keepDecimalPoint = ( (flags & FLAGS_ALTERNATIVE) ||
2867 !((precision == 0) ||
2868 (!keepTrailingZeroes && hasOnlyZeroes)) );
2869 if (flags & FLAGS_FLOAT_E)
2870 {
2871 exponentDigits = (uExponent == 0)
2872 ? 1
2873 : (int)ceil(TrioLogarithm((double)(uExponent + 1),
2874 (isHex) ? 10.0 : base));
2875 }
2876 else
2877 exponentDigits = 0;
2878 requireTwoDigitExponent = ((base == BASE_DECIMAL) && (exponentDigits == 1));
2879
2880 expectedWidth = integerDigits + fractionDigits
2881 + (keepDecimalPoint
2882 ? internalDecimalPointLength
2883 : 0)
2884 + ((flags & FLAGS_QUOTE)
2885 ? TrioCalcThousandSeparatorLength(integerDigits)
2886 : 0);
2887 if (isNegative || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE))
2888 expectedWidth += sizeof("-") - 1;
2889 if (exponentDigits > 0)
2890 expectedWidth += exponentDigits +
2891 ((requireTwoDigitExponent ? sizeof("E+0") : sizeof("E+")) - 1);
2892 if (isHex)
2893 expectedWidth += sizeof("0X") - 1;
2894
2895 /* Output prefixing */
2896 if (flags & FLAGS_NILPADDING)
2897 {
2898 /* Leading zeros must be after sign */
2899 if (isNegative)
2900 self->OutStream(self, '-');
2901 else if (flags & FLAGS_SHOWSIGN)
2902 self->OutStream(self, '+');
2903 else if (flags & FLAGS_SPACE)
2904 self->OutStream(self, ' ');
2905 if (isHex)
2906 {
2907 self->OutStream(self, '0');
2908 self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x');
2909 }
2910 if (!(flags & FLAGS_LEFTADJUST))
2911 {
2912 for (i = expectedWidth; i < width; i++)
2913 {
2914 self->OutStream(self, '0');
2915 }
2916 }
2917 }
2918 else
2919 {
2920 /* Leading spaces must be before sign */
2921 if (!(flags & FLAGS_LEFTADJUST))
2922 {
2923 for (i = expectedWidth; i < width; i++)
2924 {
2925 self->OutStream(self, CHAR_ADJUST);
2926 }
2927 }
2928 if (isNegative)
2929 self->OutStream(self, '-');
2930 else if (flags & FLAGS_SHOWSIGN)
2931 self->OutStream(self, '+');
2932 else if (flags & FLAGS_SPACE)
2933 self->OutStream(self, ' ');
2934 if (isHex)
2935 {
2936 self->OutStream(self, '0');
2937 self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x');
2938 }
2939 }
2940
2941 /* Output the integer part and thousand separators */
2942 dblIntegerBase = 1.0 / TrioPower(base, integerDigits - 1);
2943 for (i = 0; i < integerDigits; i++)
2944 {
2945 workNumber = floorl(((integerNumber + integerAdjust) * dblIntegerBase));
2946 if (i > integerThreshold)
2947 {
2948 /* Beyond accuracy */
2949 self->OutStream(self, digits[0]);
2950 }
2951 else
2952 {
2953 self->OutStream(self, digits[(int)fmodl(workNumber, dblBase)]);
2954 }
2955 dblIntegerBase *= dblBase;
2956
2957 if (((flags & (FLAGS_FLOAT_E | FLAGS_QUOTE)) == FLAGS_QUOTE)
2958 && TrioFollowedBySeparator(integerDigits - i))
2959 {
2960 for (groupingPointer = internalThousandSeparator;
2961 *groupingPointer != NIL;
2962 groupingPointer++)
2963 {
2964 self->OutStream(self, *groupingPointer);
2965 }
2966 }
2967 }
2968
2969 /* Insert decimal point and build the fraction part */
2970 trailingZeroes = 0;
2971
2972 if (keepDecimalPoint)
2973 {
2974 if (internalDecimalPoint)
2975 {
2976 self->OutStream(self, internalDecimalPoint);
2977 }
2978 else
2979 {
2980 for (i = 0; i < internalDecimalPointLength; i++)
2981 {
2982 self->OutStream(self, internalDecimalPointString[i]);
2983 }
2984 }
2985 }
2986
2987 for (i = 0; i < fractionDigits; i++)
2988 {
2989 if ((integerDigits > integerThreshold) || (i > fractionThreshold))
2990 {
2991 /* Beyond accuracy */
2992 trailingZeroes++;
2993 }
2994 else
2995 {
2996 fractionNumber *= dblBase;
2997 fractionAdjust *= dblBase;
2998 workNumber = floorl(fractionNumber + fractionAdjust);
2999 fractionNumber -= workNumber;
3000 index = (int)fmodl(workNumber, dblBase);
3001 if (index == 0)
3002 {
3003 trailingZeroes++;
3004 }
3005 else
3006 {
3007 while (trailingZeroes > 0)
3008 {
3009 /* Not trailing zeroes after all */
3010 self->OutStream(self, digits[0]);
3011 trailingZeroes--;
3012 }
3013 self->OutStream(self, digits[index]);
3014 }
3015 }
3016 }
3017
3018 if (keepTrailingZeroes)
3019 {
3020 while (trailingZeroes > 0)
3021 {
3022 self->OutStream(self, digits[0]);
3023 trailingZeroes--;
3024 }
3025 }
3026
3027 /* Output exponent */
3028 if (exponentDigits > 0)
3029 {
3030 self->OutStream(self,
3031 isHex
3032 ? ((flags & FLAGS_UPPER) ? 'P' : 'p')
3033 : ((flags & FLAGS_UPPER) ? 'E' : 'e'));
3034 self->OutStream(self, (isExponentNegative) ? '-' : '+');
3035
3036 /* The exponent must contain at least two digits */
3037 if (requireTwoDigitExponent)
3038 self->OutStream(self, '0');
3039
3040 if (isHex)
3041 base = 10.0;
3042 exponentBase = (int)TrioPower(base, exponentDigits - 1);
3043 for (i = 0; i < exponentDigits; i++)
3044 {
3045 self->OutStream(self, digits[(uExponent / exponentBase) % base]);
3046 exponentBase /= base;
3047 }
3048 }
3049 /* Output trailing spaces */
3050 if (flags & FLAGS_LEFTADJUST)
3051 {
3052 for (i = expectedWidth; i < width; i++)
3053 {
3054 self->OutStream(self, CHAR_ADJUST);
3055 }
3056 }
3057}
3058
3059/*************************************************************************
3060 * TrioFormatProcess
3061 *
3062 * Description:
3063 * This is the main engine for formatting output
3064 */
3065TRIO_PRIVATE int
3066TrioFormatProcess
3067TRIO_ARGS3((data, format, parameters),
3068 trio_class_t *data,
3069 TRIO_CONST char *format,
3070 trio_parameter_t *parameters)
3071{
3072#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
3073 int charlen;
3074#endif
3075 int i;
3076 TRIO_CONST char *string;
3077 trio_pointer_t pointer;
3078 trio_flags_t flags;
3079 int width;
3080 int precision;
3081 int base;
3082 int index;
3083
3084 index = 0;
3085 i = 0;
3086#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
3087 (void)mblen(NULL, 0);
3088#endif
3089
3090 while (format[index])
3091 {
3092#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
3093 if (! isascii(format[index]))
3094 {
3095 charlen = mblen(&format[index], MB_LEN_MAX);
3096 /*
3097 * Only valid multibyte characters are handled here. Invalid
3098 * multibyte characters (charlen == -1) are handled as normal
3099 * characters.
3100 */
3101 if (charlen != -1)
3102 {
3103 while (charlen-- > 0)
3104 {
3105 data->OutStream(data, format[index++]);
3106 }
3107 continue; /* while characters left in formatting string */
3108 }
3109 }
3110#endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */
3111 if (CHAR_IDENTIFIER == format[index])
3112 {
3113 if (CHAR_IDENTIFIER == format[index + 1])
3114 {
3115 data->OutStream(data, CHAR_IDENTIFIER);
3116 index += 2;
3117 }
3118 else
3119 {
3120 /* Skip the parameter entries */
3121 while (parameters[i].type == FORMAT_PARAMETER)
3122 i++;
3123
3124 flags = parameters[i].flags;
3125
3126 /* Find width */
3127 width = parameters[i].width;
3128 if (flags & FLAGS_WIDTH_PARAMETER)
3129 {
3130 /* Get width from parameter list */
3131 width = (int)parameters[width].data.number.as_signed;
3132 if (width < 0)
3133 {
3134 /*
3135 * A negative width is the same as the - flag and
3136 * a positive width.
3137 */
3138 flags |= FLAGS_LEFTADJUST;
3139 flags &= ~FLAGS_NILPADDING;
3140 width = -width;
3141 }
3142 }
3143
3144 /* Find precision */
3145 if (flags & FLAGS_PRECISION)
3146 {
3147 precision = parameters[i].precision;
3148 if (flags & FLAGS_PRECISION_PARAMETER)
3149 {
3150 /* Get precision from parameter list */
3151 precision = (int)parameters[precision].data.number.as_signed;
3152 if (precision < 0)
3153 {
3154 /*
3155 * A negative precision is the same as no
3156 * precision
3157 */
3158 precision = NO_PRECISION;
3159 }
3160 }
3161 }
3162 else
3163 {
3164 precision = NO_PRECISION;
3165 }
3166
3167 /* Find base */
3168 base = parameters[i].base;
3169 if (flags & FLAGS_BASE_PARAMETER)
3170 {
3171 /* Get base from parameter list */
3172 base = (int)parameters[base].data.number.as_signed;
3173 }
3174
3175 switch (parameters[i].type)
3176 {
3177 case FORMAT_CHAR:
3178 if (flags & FLAGS_QUOTE)
3179 data->OutStream(data, CHAR_QUOTE);
3180 if (! (flags & FLAGS_LEFTADJUST))
3181 {
3182 while (--width > 0)
3183 data->OutStream(data, CHAR_ADJUST);
3184 }
3185#if TRIO_WIDECHAR
3186 if (flags & FLAGS_WIDECHAR)
3187 {
3188 TrioWriteWideStringCharacter(data,
3189 (trio_wchar_t)parameters[i].data.number.as_signed,
3190 flags,
3191 NO_WIDTH);
3192 }
3193 else
3194#endif
3195 {
3196 TrioWriteStringCharacter(data,
3197 (int)parameters[i].data.number.as_signed,
3198 flags);
3199 }
3200
3201 if (flags & FLAGS_LEFTADJUST)
3202 {
3203 while(--width > 0)
3204 data->OutStream(data, CHAR_ADJUST);
3205 }
3206 if (flags & FLAGS_QUOTE)
3207 data->OutStream(data, CHAR_QUOTE);
3208
3209 break; /* FORMAT_CHAR */
3210
3211 case FORMAT_INT:
3212 TrioWriteNumber(data,
3213 parameters[i].data.number.as_unsigned,
3214 flags,
3215 width,
3216 precision,
3217 base);
3218
3219 break; /* FORMAT_INT */
3220
3221 case FORMAT_DOUBLE:
3222 TrioWriteDouble(data,
3223 parameters[i].data.longdoubleNumber,
3224 flags,
3225 width,
3226 precision,
3227 base);
3228 break; /* FORMAT_DOUBLE */
3229
3230 case FORMAT_STRING:
3231#if TRIO_WIDECHAR
3232 if (flags & FLAGS_WIDECHAR)
3233 {
3234 TrioWriteWideString(data,
3235 parameters[i].data.wstring,
3236 flags,
3237 width,
3238 precision);
3239 }
3240 else
3241#endif
3242 {
3243 TrioWriteString(data,
3244 parameters[i].data.string,
3245 flags,
3246 width,
3247 precision);
3248 }
3249 break; /* FORMAT_STRING */
3250
3251 case FORMAT_POINTER:
3252 {
3253 trio_reference_t reference;
3254
3255 reference.data = data;
3256 reference.parameter = &parameters[i];
3257 trio_print_pointer(&reference, parameters[i].data.pointer);
3258 }
3259 break; /* FORMAT_POINTER */
3260
3261 case FORMAT_COUNT:
3262 pointer = parameters[i].data.pointer;
3263 if (NULL != pointer)
3264 {
3265 /*
3266 * C99 paragraph 7.19.6.1.8 says "the number of
3267 * characters written to the output stream so far by
3268 * this call", which is data->committed
3269 */
3270#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
3271 if (flags & FLAGS_SIZE_T)
3272 *(size_t *)pointer = (size_t)data->committed;
3273 else
3274#endif
3275#if defined(QUALIFIER_PTRDIFF_T)
3276 if (flags & FLAGS_PTRDIFF_T)
3277 *(ptrdiff_t *)pointer = (ptrdiff_t)data->committed;
3278 else
3279#endif
3280#if defined(QUALIFIER_INTMAX_T)
3281 if (flags & FLAGS_INTMAX_T)
3282 *(trio_intmax_t *)pointer = (trio_intmax_t)data->committed;
3283 else
3284#endif
3285 if (flags & FLAGS_QUAD)
3286 {
3287 *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)data->committed;
3288 }
3289 else if (flags & FLAGS_LONG)
3290 {
3291 *(long int *)pointer = (long int)data->committed;
3292 }
3293 else if (flags & FLAGS_SHORT)
3294 {
3295 *(short int *)pointer = (short int)data->committed;
3296 }
3297 else
3298 {
3299 *(int *)pointer = (int)data->committed;
3300 }
3301 }
3302 break; /* FORMAT_COUNT */
3303
3304 case FORMAT_PARAMETER:
3305 break; /* FORMAT_PARAMETER */
3306
3307#if defined(FORMAT_ERRNO)
3308 case FORMAT_ERRNO:
3309 string = trio_error(parameters[i].data.errorNumber);
3310 if (string)
3311 {
3312 TrioWriteString(data,
3313 string,
3314 flags,
3315 width,
3316 precision);
3317 }
3318 else
3319 {
3320 data->OutStream(data, '#');
3321 TrioWriteNumber(data,
3322 (trio_uintmax_t)parameters[i].data.errorNumber,
3323 flags,
3324 width,
3325 precision,
3326 BASE_DECIMAL);
3327 }
3328 break; /* FORMAT_ERRNO */
3329#endif /* defined(FORMAT_ERRNO) */
3330
3331#if defined(FORMAT_USER_DEFINED)
3332 case FORMAT_USER_DEFINED:
3333 {
3334 trio_reference_t reference;
3335 trio_userdef_t *def = NULL;
3336
3337 if (parameters[i].user_name[0] == NIL)
3338 {
3339 /* Use handle */
3340 if ((i > 0) ||
3341 (parameters[i - 1].type == FORMAT_PARAMETER))
3342 def = (trio_userdef_t *)parameters[i - 1].data.pointer;
3343 }
3344 else
3345 {
3346 /* Look up namespace */
3347 def = TrioFindNamespace(parameters[i].user_name, NULL);
3348 }
3349 if (def) {
3350 reference.data = data;
3351 reference.parameter = &parameters[i];
3352 def->callback(&reference);
3353 }
3354 }
3355 break;
3356#endif /* defined(FORMAT_USER_DEFINED) */
3357
3358 default:
3359 break;
3360 } /* switch parameter type */
3361
3362 /* Prepare for next */
3363 index = parameters[i].indexAfterSpecifier;
3364 i++;
3365 }
3366 }
3367 else /* not identifier */
3368 {
3369 data->OutStream(data, format[index++]);
3370 }
3371 }
3372 return data->processed;
3373}
3374
3375/*************************************************************************
3376 * TrioFormatRef
3377 */
3378TRIO_PRIVATE int
3379TrioFormatRef
3380TRIO_ARGS4((reference, format, arglist, argarray),
3381 trio_reference_t *reference,
3382 TRIO_CONST char *format,
3383 va_list *arglist,
3384 trio_pointer_t *argarray)
3385{
3386 int status;
3387 trio_parameter_t parameters[MAX_PARAMETERS];
3388
3389 status = TrioParse(TYPE_PRINT, format, parameters, arglist, argarray);
3390 if (status < 0)
3391 return status;
3392
3393 status = TrioFormatProcess(reference->data, format, parameters);
3394 if (reference->data->error != 0)
3395 {
3396 status = reference->data->error;
3397 }
3398 return status;
3399}
3400
3401/*************************************************************************
3402 * TrioFormat
3403 */
3404TRIO_PRIVATE int
3405TrioFormat
3406TRIO_ARGS6((destination, destinationSize, OutStream, format, arglist, argarray),
3407 trio_pointer_t destination,
3408 size_t destinationSize,
3409 void (*OutStream) TRIO_PROTO((trio_class_t *, int)),
3410 TRIO_CONST char *format,
3411 va_list *arglist,
3412 trio_pointer_t *argarray)
3413{
3414 int status;
3415 trio_class_t data;
3416 trio_parameter_t parameters[MAX_PARAMETERS];
3417
3418 assert(VALID(OutStream));
3419 assert(VALID(format));
3420
3421 memset(&data, 0, sizeof(data));
3422 data.OutStream = OutStream;
3423 data.location = destination;
3424 data.max = destinationSize;
3425 data.error = 0;
3426
3427#if defined(USE_LOCALE)
3428 if (NULL == internalLocaleValues)
3429 {
3430 TrioSetLocale();
3431 }
3432#endif
3433
3434 status = TrioParse(TYPE_PRINT, format, parameters, arglist, argarray);
3435 if (status < 0)
3436 return status;
3437
3438 status = TrioFormatProcess(&data, format, parameters);
3439 if (data.error != 0)
3440 {
3441 status = data.error;
3442 }
3443 return status;
3444}
3445
3446/*************************************************************************
3447 * TrioOutStreamFile
3448 */
3449TRIO_PRIVATE void
3450TrioOutStreamFile
3451TRIO_ARGS2((self, output),
3452 trio_class_t *self,
3453 int output)
3454{
3455 FILE *file;
3456
3457 assert(VALID(self));
3458 assert(VALID(self->location));
3459
3460 file = (FILE *)self->location;
3461 self->processed++;
3462 if (fputc(output, file) == EOF)
3463 {
3464 self->error = TRIO_ERROR_RETURN(TRIO_EOF, 0);
3465 }
3466 else
3467 {
3468 self->committed++;
3469 }
3470}
3471
3472/*************************************************************************
3473 * TrioOutStreamFileDescriptor
3474 */
3475TRIO_PRIVATE void
3476TrioOutStreamFileDescriptor
3477TRIO_ARGS2((self, output),
3478 trio_class_t *self,
3479 int output)
3480{
3481 int fd;
3482 char ch;
3483
3484 assert(VALID(self));
3485
3486 fd = *((int *)self->location);
3487 ch = (char)output;
3488 self->processed++;
3489 if (write(fd, &ch, sizeof(char)) == -1)
3490 {
3491 self->error = TRIO_ERROR_RETURN(TRIO_ERRNO, 0);
3492 }
3493 else
3494 {
3495 self->committed++;
3496 }
3497}
3498
3499/*************************************************************************
3500 * TrioOutStreamCustom
3501 */
3502TRIO_PRIVATE void
3503TrioOutStreamCustom
3504TRIO_ARGS2((self, output),
3505 trio_class_t *self,
3506 int output)
3507{
3508 int status;
3509 trio_custom_t *data;
3510
3511 assert(VALID(self));
3512 assert(VALID(self->location));
3513
3514 data = (trio_custom_t *)self->location;
3515 if (data->stream.out)
3516 {
3517 status = (data->stream.out)(data->closure, output);
3518 if (status >= 0)
3519 {
3520 self->committed++;
3521 }
3522 else
3523 {
3524 if (self->error == 0)
3525 {
3526 self->error = TRIO_ERROR_RETURN(TRIO_ECUSTOM, -status);
3527 }
3528 }
3529 }
3530 self->processed++;
3531}
3532
3533/*************************************************************************
3534 * TrioOutStreamString
3535 */
3536TRIO_PRIVATE void
3537TrioOutStreamString
3538TRIO_ARGS2((self, output),
3539 trio_class_t *self,
3540 int output)
3541{
3542 char **buffer;
3543
3544 assert(VALID(self));
3545 assert(VALID(self->location));
3546
3547 buffer = (char **)self->location;
3548 **buffer = (char)output;
3549 (*buffer)++;
3550 self->processed++;
3551 self->committed++;
3552}
3553
3554/*************************************************************************
3555 * TrioOutStreamStringMax
3556 */
3557TRIO_PRIVATE void
3558TrioOutStreamStringMax
3559TRIO_ARGS2((self, output),
3560 trio_class_t *self,
3561 int output)
3562{
3563 char **buffer;
3564
3565 assert(VALID(self));
3566 assert(VALID(self->location));
3567
3568 buffer = (char **)self->location;
3569
3570 if (self->processed < self->max)
3571 {
3572 **buffer = (char)output;
3573 (*buffer)++;
3574 self->committed++;
3575 }
3576 self->processed++;
3577}
3578
3579/*************************************************************************
3580 * TrioOutStreamStringDynamic
3581 */
3582TRIO_PRIVATE void
3583TrioOutStreamStringDynamic
3584TRIO_ARGS2((self, output),
3585 trio_class_t *self,
3586 int output)
3587{
3588 assert(VALID(self));
3589 assert(VALID(self->location));
3590
3591 if (self->error == 0)
3592 {
3593 trio_xstring_append_char((trio_string_t *)self->location,
3594 (char)output);
3595 self->committed++;
3596 }
3597 /* The processed variable must always be increased */
3598 self->processed++;
3599}
3600
3601/*************************************************************************
3602 *
3603 * Formatted printing functions
3604 *
3605 ************************************************************************/
3606
3607#if defined(TRIO_DOCUMENTATION)
3608# include "doc/doc_printf.h"
3609#endif
3610/** @addtogroup Printf
3611 @{
3612*/
3613
3614/*************************************************************************
3615 * printf
3616 */
3617
3618/**
3619 Print to standard output stream.
3620
3621 @param format Formatting string.
3622 @param ... Arguments.
3623 @return Number of printed characters.
3624 */
3625TRIO_PUBLIC int
3626trio_printf
3627TRIO_VARGS2((format, va_alist),
3628 TRIO_CONST char *format,
3629 TRIO_VA_DECL)
3630{
3631 int status;
3632 va_list args;
3633
3634 assert(VALID(format));
3635
3636 TRIO_VA_START(args, format);
3637 status = TrioFormat(stdout, 0, TrioOutStreamFile, format, &args, NULL);
3638 TRIO_VA_END(args);
3639 return status;
3640}
3641
3642/**
3643 Print to standard output stream.
3644
3645 @param format Formatting string.
3646 @param args Arguments.
3647 @return Number of printed characters.
3648 */
3649TRIO_PUBLIC int
3650trio_vprintf
3651TRIO_ARGS2((format, args),
3652 TRIO_CONST char *format,
3653 va_list args)
3654{
3655 assert(VALID(format));
3656
3657 return TrioFormat(stdout, 0, TrioOutStreamFile, format, &args, NULL);
3658}
3659
3660/**
3661 Print to standard output stream.
3662
3663 @param format Formatting string.
3664 @param args Arguments.
3665 @return Number of printed characters.
3666 */
3667TRIO_PUBLIC int
3668trio_printfv
3669TRIO_ARGS2((format, args),
3670 TRIO_CONST char *format,
3671 trio_pointer_t * args)
3672{
3673 assert(VALID(format));
3674
3675 return TrioFormat(stdout, 0, TrioOutStreamFile, format, NULL, args);
3676}
3677
3678/*************************************************************************
3679 * fprintf
3680 */
3681
3682/**
3683 Print to file.
3684
3685 @param file File pointer.
3686 @param format Formatting string.
3687 @param ... Arguments.
3688 @return Number of printed characters.
3689 */
3690TRIO_PUBLIC int
3691trio_fprintf
3692TRIO_VARGS3((file, format, va_alist),
3693 FILE *file,
3694 TRIO_CONST char *format,
3695 TRIO_VA_DECL)
3696{
3697 int status;
3698 va_list args;
3699
3700 assert(VALID(file));
3701 assert(VALID(format));
3702
3703 TRIO_VA_START(args, format);
3704 status = TrioFormat(file, 0, TrioOutStreamFile, format, &args, NULL);
3705 TRIO_VA_END(args);
3706 return status;
3707}
3708
3709/**
3710 Print to file.
3711
3712 @param file File pointer.
3713 @param format Formatting string.
3714 @param args Arguments.
3715 @return Number of printed characters.
3716 */
3717TRIO_PUBLIC int
3718trio_vfprintf
3719TRIO_ARGS3((file, format, args),
3720 FILE *file,
3721 TRIO_CONST char *format,
3722 va_list args)
3723{
3724 assert(VALID(file));
3725 assert(VALID(format));
3726
3727 return TrioFormat(file, 0, TrioOutStreamFile, format, &args, NULL);
3728}
3729
3730/**
3731 Print to file.
3732
3733 @param file File pointer.
3734 @param format Formatting string.
3735 @param args Arguments.
3736 @return Number of printed characters.
3737 */
3738TRIO_PUBLIC int
3739trio_fprintfv
3740TRIO_ARGS3((file, format, args),
3741 FILE *file,
3742 TRIO_CONST char *format,
3743 trio_pointer_t * args)
3744{
3745 assert(VALID(file));
3746 assert(VALID(format));
3747
3748 return TrioFormat(file, 0, TrioOutStreamFile, format, NULL, args);
3749}
3750
3751/*************************************************************************
3752 * dprintf
3753 */
3754
3755/**
3756 Print to file descriptor.
3757
3758 @param fd File descriptor.
3759 @param format Formatting string.
3760 @param ... Arguments.
3761 @return Number of printed characters.
3762 */
3763TRIO_PUBLIC int
3764trio_dprintf
3765TRIO_VARGS3((fd, format, va_alist),
3766 int fd,
3767 TRIO_CONST char *format,
3768 TRIO_VA_DECL)
3769{
3770 int status;
3771 va_list args;
3772
3773 assert(VALID(format));
3774
3775 TRIO_VA_START(args, format);
3776 status = TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, &args, NULL);
3777 TRIO_VA_END(args);
3778 return status;
3779}
3780
3781/**
3782 Print to file descriptor.
3783
3784 @param fd File descriptor.
3785 @param format Formatting string.
3786 @param args Arguments.
3787 @return Number of printed characters.
3788 */
3789TRIO_PUBLIC int
3790trio_vdprintf
3791TRIO_ARGS3((fd, format, args),
3792 int fd,
3793 TRIO_CONST char *format,
3794 va_list args)
3795{
3796 assert(VALID(format));
3797
3798 return TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, &args, NULL);
3799}
3800
3801/**
3802 Print to file descriptor.
3803
3804 @param fd File descriptor.
3805 @param format Formatting string.
3806 @param args Arguments.
3807 @return Number of printed characters.
3808 */
3809TRIO_PUBLIC int
3810trio_dprintfv
3811TRIO_ARGS3((fd, format, args),
3812 int fd,
3813 TRIO_CONST char *format,
3814 trio_pointer_t *args)
3815{
3816 assert(VALID(format));
3817
3818 return TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, NULL, args);
3819}
3820
3821/*************************************************************************
3822 * cprintf
3823 */
3824TRIO_PUBLIC int
3825trio_cprintf
3826TRIO_VARGS4((stream, closure, format, va_alist),
3827 trio_outstream_t stream,
3828 trio_pointer_t closure,
3829 TRIO_CONST char *format,
3830 TRIO_VA_DECL)
3831{
3832 int status;
3833 va_list args;
3834 trio_custom_t data;
3835
3836 assert(VALID(stream));
3837 assert(VALID(format));
3838
3839 TRIO_VA_START(args, format);
3840 data.stream.out = stream;
3841 data.closure = closure;
3842 status = TrioFormat(&data, 0, TrioOutStreamCustom, format, &args, NULL);
3843 TRIO_VA_END(args);
3844 return status;
3845}
3846
3847TRIO_PUBLIC int
3848trio_vcprintf
3849TRIO_ARGS4((stream, closure, format, args),
3850 trio_outstream_t stream,
3851 trio_pointer_t closure,
3852 TRIO_CONST char *format,
3853 va_list args)
3854{
3855 trio_custom_t data;
3856
3857 assert(VALID(stream));
3858 assert(VALID(format));
3859
3860 data.stream.out = stream;
3861 data.closure = closure;
3862 return TrioFormat(&data, 0, TrioOutStreamCustom, format, &args, NULL);
3863}
3864
3865TRIO_PUBLIC int
3866trio_cprintfv
3867TRIO_ARGS4((stream, closure, format, args),
3868 trio_outstream_t stream,
3869 trio_pointer_t closure,
3870 TRIO_CONST char *format,
3871 void **args)
3872{
3873 trio_custom_t data;
3874
3875 assert(VALID(stream));
3876 assert(VALID(format));
3877
3878 data.stream.out = stream;
3879 data.closure = closure;
3880 return TrioFormat(&data, 0, TrioOutStreamCustom, format, NULL, args);
3881}
3882
3883/*************************************************************************
3884 * sprintf
3885 */
3886
3887/**
3888 Print to string.
3889
3890 @param buffer Output string.
3891 @param format Formatting string.
3892 @param ... Arguments.
3893 @return Number of printed characters.
3894 */
3895TRIO_PUBLIC int
3896trio_sprintf
3897TRIO_VARGS3((buffer, format, va_alist),
3898 char *buffer,
3899 TRIO_CONST char *format,
3900 TRIO_VA_DECL)
3901{
3902 int status;
3903 va_list args;
3904
3905 assert(VALID(buffer));
3906 assert(VALID(format));
3907
3908 TRIO_VA_START(args, format);
3909 status = TrioFormat(&buffer, 0, TrioOutStreamString, format, &args, NULL);
3910 *buffer = NIL; /* Terminate with NIL character */
3911 TRIO_VA_END(args);
3912 return status;
3913}
3914
3915/**
3916 Print to string.
3917
3918 @param buffer Output string.
3919 @param format Formatting string.
3920 @param args Arguments.
3921 @return Number of printed characters.
3922 */
3923TRIO_PUBLIC int
3924trio_vsprintf
3925TRIO_ARGS3((buffer, format, args),
3926 char *buffer,
3927 TRIO_CONST char *format,
3928 va_list args)
3929{
3930 int status;
3931
3932 assert(VALID(buffer));
3933 assert(VALID(format));
3934
3935 status = TrioFormat(&buffer, 0, TrioOutStreamString, format, &args, NULL);
3936 *buffer = NIL;
3937 return status;
3938}
3939
3940/**
3941 Print to string.
3942
3943 @param buffer Output string.
3944 @param format Formatting string.
3945 @param args Arguments.
3946 @return Number of printed characters.
3947 */
3948TRIO_PUBLIC int
3949trio_sprintfv
3950TRIO_ARGS3((buffer, format, args),
3951 char *buffer,
3952 TRIO_CONST char *format,
3953 trio_pointer_t *args)
3954{
3955 int status;
3956
3957 assert(VALID(buffer));
3958 assert(VALID(format));
3959
3960 status = TrioFormat(&buffer, 0, TrioOutStreamString, format, NULL, args);
3961 *buffer = NIL;
3962 return status;
3963}
3964
3965/*************************************************************************
3966 * snprintf
3967 */
3968
3969/**
3970 Print at most @p max characters to string.
3971
3972 @param buffer Output string.
3973 @param max Maximum number of characters to print.
3974 @param format Formatting string.
3975 @param ... Arguments.
3976 @return Number of printed characters.
3977 */
3978TRIO_PUBLIC int
3979trio_snprintf
3980TRIO_VARGS4((buffer, max, format, va_alist),
3981 char *buffer,
3982 size_t max,
3983 TRIO_CONST char *format,
3984 TRIO_VA_DECL)
3985{
3986 int status;
3987 va_list args;
3988
3989 assert(VALID(buffer));
3990 assert(VALID(format));
3991
3992 TRIO_VA_START(args, format);
3993 status = TrioFormat(&buffer, max > 0 ? max - 1 : 0,
3994 TrioOutStreamStringMax, format, &args, NULL);
3995 if (max > 0)
3996 *buffer = NIL;
3997 TRIO_VA_END(args);
3998 return status;
3999}
4000
4001/**
4002 Print at most @p max characters to string.
4003
4004 @param buffer Output string.
4005 @param max Maximum number of characters to print.
4006 @param format Formatting string.
4007 @param args Arguments.
4008 @return Number of printed characters.
4009 */
4010TRIO_PUBLIC int
4011trio_vsnprintf
4012TRIO_ARGS4((buffer, max, format, args),
4013 char *buffer,
4014 size_t max,
4015 TRIO_CONST char *format,
4016 va_list args)
4017{
4018 int status;
4019
4020 assert(VALID(buffer));
4021 assert(VALID(format));
4022
4023 status = TrioFormat(&buffer, max > 0 ? max - 1 : 0,
4024 TrioOutStreamStringMax, format, &args, NULL);
4025 if (max > 0)
4026 *buffer = NIL;
4027 return status;
4028}
4029
4030/**
4031 Print at most @p max characters to string.
4032
4033 @param buffer Output string.
4034 @param max Maximum number of characters to print.
4035 @param format Formatting string.
4036 @param args Arguments.
4037 @return Number of printed characters.
4038 */
4039TRIO_PUBLIC int
4040trio_snprintfv
4041TRIO_ARGS4((buffer, max, format, args),
4042 char *buffer,
4043 size_t max,
4044 TRIO_CONST char *format,
4045 trio_pointer_t *args)
4046{
4047 int status;
4048
4049 assert(VALID(buffer));
4050 assert(VALID(format));
4051
4052 status = TrioFormat(&buffer, max > 0 ? max - 1 : 0,
4053 TrioOutStreamStringMax, format, NULL, args);
4054 if (max > 0)
4055 *buffer = NIL;
4056 return status;
4057}
4058
4059/*************************************************************************
4060 * snprintfcat
4061 * Appends the new string to the buffer string overwriting the '\0'
4062 * character at the end of buffer.
4063 */
4064TRIO_PUBLIC int
4065trio_snprintfcat
4066TRIO_VARGS4((buffer, max, format, va_alist),
4067 char *buffer,
4068 size_t max,
4069 TRIO_CONST char *format,
4070 TRIO_VA_DECL)
4071{
4072 int status;
4073 va_list args;
4074 size_t buf_len;
4075
4076 TRIO_VA_START(args, format);
4077
4078 assert(VALID(buffer));
4079 assert(VALID(format));
4080
4081 buf_len = trio_length(buffer);
4082 buffer = &buffer[buf_len];
4083
4084 status = TrioFormat(&buffer, max - 1 - buf_len,
4085 TrioOutStreamStringMax, format, &args, NULL);
4086 TRIO_VA_END(args);
4087 *buffer = NIL;
4088 return status;
4089}
4090
4091TRIO_PUBLIC int
4092trio_vsnprintfcat
4093TRIO_ARGS4((buffer, max, format, args),
4094 char *buffer,
4095 size_t max,
4096 TRIO_CONST char *format,
4097 va_list args)
4098{
4099 int status;
4100 size_t buf_len;
4101
4102 assert(VALID(buffer));
4103 assert(VALID(format));
4104
4105 buf_len = trio_length(buffer);
4106 buffer = &buffer[buf_len];
4107 status = TrioFormat(&buffer, max - 1 - buf_len,
4108 TrioOutStreamStringMax, format, &args, NULL);
4109 *buffer = NIL;
4110 return status;
4111}
4112
4113/*************************************************************************
4114 * trio_aprintf
4115 */
4116
4117/* Deprecated */
4118TRIO_PUBLIC char *
4119trio_aprintf
4120TRIO_VARGS2((format, va_alist),
4121 TRIO_CONST char *format,
4122 TRIO_VA_DECL)
4123{
4124 va_list args;
4125 trio_string_t *info;
4126 char *result = NULL;
4127
4128 assert(VALID(format));
4129
4130 info = trio_xstring_duplicate("");
4131 if (info)
4132 {
4133 TRIO_VA_START(args, format);
4134 (void)TrioFormat(info, 0, TrioOutStreamStringDynamic,
4135 format, &args, NULL);
4136 TRIO_VA_END(args);
4137
4138 trio_string_terminate(info);
4139 result = trio_string_extract(info);
4140 trio_string_destroy(info);
4141 }
4142 return result;
4143}
4144
4145/* Deprecated */
4146TRIO_PUBLIC char *
4147trio_vaprintf
4148TRIO_ARGS2((format, args),
4149 TRIO_CONST char *format,
4150 va_list args)
4151{
4152 trio_string_t *info;
4153 char *result = NULL;
4154
4155 assert(VALID(format));
4156
4157 info = trio_xstring_duplicate("");
4158 if (info)
4159 {
4160 (void)TrioFormat(info, 0, TrioOutStreamStringDynamic,
4161 format, &args, NULL);
4162 trio_string_terminate(info);
4163 result = trio_string_extract(info);
4164 trio_string_destroy(info);
4165 }
4166 return result;
4167}
4168
4169TRIO_PUBLIC int
4170trio_asprintf
4171TRIO_VARGS3((result, format, va_alist),
4172 char **result,
4173 TRIO_CONST char *format,
4174 TRIO_VA_DECL)
4175{
4176 va_list args;
4177 int status;
4178 trio_string_t *info;
4179
4180 assert(VALID(format));
4181
4182 *result = NULL;
4183
4184 info = trio_xstring_duplicate("");
4185 if (info == NULL)
4186 {
4187 status = TRIO_ERROR_RETURN(TRIO_ENOMEM, 0);
4188 }
4189 else
4190 {
4191 TRIO_VA_START(args, format);
4192 status = TrioFormat(info, 0, TrioOutStreamStringDynamic,
4193 format, &args, NULL);
4194 TRIO_VA_END(args);
4195 if (status >= 0)
4196 {
4197 trio_string_terminate(info);
4198 *result = trio_string_extract(info);
4199 }
4200 trio_string_destroy(info);
4201 }
4202 return status;
4203}
4204
4205TRIO_PUBLIC int
4206trio_vasprintf
4207TRIO_ARGS3((result, format, args),
4208 char **result,
4209 TRIO_CONST char *format,
4210 va_list args)
4211{
4212 int status;
4213 trio_string_t *info;
4214
4215 assert(VALID(format));
4216
4217 *result = NULL;
4218
4219 info = trio_xstring_duplicate("");
4220 if (info == NULL)
4221 {
4222 status = TRIO_ERROR_RETURN(TRIO_ENOMEM, 0);
4223 }
4224 else
4225 {
4226 status = TrioFormat(info, 0, TrioOutStreamStringDynamic,
4227 format, &args, NULL);
4228 if (status >= 0)
4229 {
4230 trio_string_terminate(info);
4231 *result = trio_string_extract(info);
4232 }
4233 trio_string_destroy(info);
4234 }
4235 return status;
4236}
4237
4238/** @} End of Printf documentation module */
4239
4240/*************************************************************************
4241 *
4242 * CALLBACK
4243 *
4244 ************************************************************************/
4245
4246#if defined(TRIO_DOCUMENTATION)
4247# include "doc/doc_register.h"
4248#endif
4249/**
4250 @addtogroup UserDefined
4251 @{
4252*/
4253
4254#if TRIO_EXTENSION
4255
4256/*************************************************************************
4257 * trio_register
4258 */
4259
4260/**
4261 Register new user-defined specifier.
4262
4263 @param callback
4264 @param name
4265 @return Handle.
4266 */
4267TRIO_PUBLIC trio_pointer_t
4268trio_register
4269TRIO_ARGS2((callback, name),
4270 trio_callback_t callback,
4271 TRIO_CONST char *name)
4272{
4273 trio_userdef_t *def;
4274 trio_userdef_t *prev = NULL;
4275
4276 if (callback == NULL)
4277 return NULL;
4278
4279 if (name)
4280 {
4281 /* Handle built-in namespaces */
4282 if (name[0] == ':')
4283 {
4284 if (trio_equal(name, ":enter"))
4285 {
4286 internalEnterCriticalRegion = callback;
4287 }
4288 else if (trio_equal(name, ":leave"))
4289 {
4290 internalLeaveCriticalRegion = callback;
4291 }
4292 return NULL;
4293 }
4294
4295 /* Bail out if namespace is too long */
4296 if (trio_length(name) >= MAX_USER_NAME)
4297 return NULL;
4298
4299 /* Bail out if namespace already is registered */
4300 def = TrioFindNamespace(name, &prev);
4301 if (def)
4302 return NULL;
4303 }
4304
4305 def = (trio_userdef_t *)TRIO_MALLOC(sizeof(trio_userdef_t));
4306 if (def)
4307 {
4308 if (internalEnterCriticalRegion)
4309 (void)internalEnterCriticalRegion(NULL);
4310
4311 if (name)
4312 {
4313 /* Link into internal list */
4314 if (prev == NULL)
4315 internalUserDef = def;
4316 else
4317 prev->next = def;
4318 }
4319 /* Initialize */
4320 def->callback = callback;
4321 def->name = (name == NULL)
4322 ? NULL
4323 : trio_duplicate(name);
4324 def->next = NULL;
4325
4326 if (internalLeaveCriticalRegion)
4327 (void)internalLeaveCriticalRegion(NULL);
4328 }
4329 return (trio_pointer_t)def;
4330}
4331
4332/**
4333 Unregister an existing user-defined specifier.
4334
4335 @param handle
4336 */
4337void
4338trio_unregister
4339TRIO_ARGS1((handle),
4340 trio_pointer_t handle)
4341{
4342 trio_userdef_t *self = (trio_userdef_t *)handle;
4343 trio_userdef_t *def;
4344 trio_userdef_t *prev = NULL;
4345
4346 assert(VALID(self));
4347
4348 if (self->name)
4349 {
4350 def = TrioFindNamespace(self->name, &prev);
4351 if (def)
4352 {
4353 if (internalEnterCriticalRegion)
4354 (void)internalEnterCriticalRegion(NULL);
4355
4356 if (prev == NULL)
4357 internalUserDef = NULL;
4358 else
4359 prev->next = def->next;
4360
4361 if (internalLeaveCriticalRegion)
4362 (void)internalLeaveCriticalRegion(NULL);
4363 }
4364 trio_destroy(self->name);
4365 }
4366 TRIO_FREE(self);
4367}
4368
4369/*************************************************************************
4370 * trio_get_format [public]
4371 */
4372TRIO_CONST char *
4373trio_get_format
4374TRIO_ARGS1((ref),
4375 trio_pointer_t ref)
4376{
4377#if defined(FORMAT_USER_DEFINED)
4378 assert(((trio_reference_t *)ref)->parameter->type == FORMAT_USER_DEFINED);
4379#endif
4380
4381 return (((trio_reference_t *)ref)->parameter->user_data);
4382}
4383
4384/*************************************************************************
4385 * trio_get_argument [public]
4386 */
4387trio_pointer_t
4388trio_get_argument
4389TRIO_ARGS1((ref),
4390 trio_pointer_t ref)
4391{
4392#if defined(FORMAT_USER_DEFINED)
4393 assert(((trio_reference_t *)ref)->parameter->type == FORMAT_USER_DEFINED);
4394#endif
4395
4396 return ((trio_reference_t *)ref)->parameter->data.pointer;
4397}
4398
4399/*************************************************************************
4400 * trio_get_width / trio_set_width [public]
4401 */
4402int
4403trio_get_width
4404TRIO_ARGS1((ref),
4405 trio_pointer_t ref)
4406{
4407 return ((trio_reference_t *)ref)->parameter->width;
4408}
4409
4410void
4411trio_set_width
4412TRIO_ARGS2((ref, width),
4413 trio_pointer_t ref,
4414 int width)
4415{
4416 ((trio_reference_t *)ref)->parameter->width = width;
4417}
4418
4419/*************************************************************************
4420 * trio_get_precision / trio_set_precision [public]
4421 */
4422int
4423trio_get_precision
4424TRIO_ARGS1((ref),
4425 trio_pointer_t ref)
4426{
4427 return (((trio_reference_t *)ref)->parameter->precision);
4428}
4429
4430void
4431trio_set_precision
4432TRIO_ARGS2((ref, precision),
4433 trio_pointer_t ref,
4434 int precision)
4435{
4436 ((trio_reference_t *)ref)->parameter->precision = precision;
4437}
4438
4439/*************************************************************************
4440 * trio_get_base / trio_set_base [public]
4441 */
4442int
4443trio_get_base
4444TRIO_ARGS1((ref),
4445 trio_pointer_t ref)
4446{
4447 return (((trio_reference_t *)ref)->parameter->base);
4448}
4449
4450void
4451trio_set_base
4452TRIO_ARGS2((ref, base),
4453 trio_pointer_t ref,
4454 int base)
4455{
4456 ((trio_reference_t *)ref)->parameter->base = base;
4457}
4458
4459/*************************************************************************
4460 * trio_get_long / trio_set_long [public]
4461 */
4462int
4463trio_get_long
4464TRIO_ARGS1((ref),
4465 trio_pointer_t ref)
4466{
4467 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LONG)
4468 ? TRUE
4469 : FALSE;
4470}
4471
4472void
4473trio_set_long
4474TRIO_ARGS2((ref, is_long),
4475 trio_pointer_t ref,
4476 int is_long)
4477{
4478 if (is_long)
4479 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LONG;
4480 else
4481 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LONG;
4482}
4483
4484/*************************************************************************
4485 * trio_get_longlong / trio_set_longlong [public]
4486 */
4487int
4488trio_get_longlong
4489TRIO_ARGS1((ref),
4490 trio_pointer_t ref)
4491{
4492 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_QUAD)
4493 ? TRUE
4494 : FALSE;
4495}
4496
4497void
4498trio_set_longlong
4499TRIO_ARGS2((ref, is_longlong),
4500 trio_pointer_t ref,
4501 int is_longlong)
4502{
4503 if (is_longlong)
4504 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_QUAD;
4505 else
4506 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_QUAD;
4507}
4508
4509/*************************************************************************
4510 * trio_get_longdouble / trio_set_longdouble [public]
4511 */
4512int
4513trio_get_longdouble
4514TRIO_ARGS1((ref),
4515 trio_pointer_t ref)
4516{
4517 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LONGDOUBLE)
4518 ? TRUE
4519 : FALSE;
4520}
4521
4522void
4523trio_set_longdouble
4524TRIO_ARGS2((ref, is_longdouble),
4525 trio_pointer_t ref,
4526 int is_longdouble)
4527{
4528 if (is_longdouble)
4529 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LONGDOUBLE;
4530 else
4531 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LONGDOUBLE;
4532}
4533
4534/*************************************************************************
4535 * trio_get_short / trio_set_short [public]
4536 */
4537int
4538trio_get_short
4539TRIO_ARGS1((ref),
4540 trio_pointer_t ref)
4541{
4542 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHORT)
4543 ? TRUE
4544 : FALSE;
4545}
4546
4547void
4548trio_set_short
4549TRIO_ARGS2((ref, is_short),
4550 trio_pointer_t ref,
4551 int is_short)
4552{
4553 if (is_short)
4554 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHORT;
4555 else
4556 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHORT;
4557}
4558
4559/*************************************************************************
4560 * trio_get_shortshort / trio_set_shortshort [public]
4561 */
4562int
4563trio_get_shortshort
4564TRIO_ARGS1((ref),
4565 trio_pointer_t ref)
4566{
4567 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHORTSHORT)
4568 ? TRUE
4569 : FALSE;
4570}
4571
4572void
4573trio_set_shortshort
4574TRIO_ARGS2((ref, is_shortshort),
4575 trio_pointer_t ref,
4576 int is_shortshort)
4577{
4578 if (is_shortshort)
4579 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHORTSHORT;
4580 else
4581 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHORTSHORT;
4582}
4583
4584/*************************************************************************
4585 * trio_get_alternative / trio_set_alternative [public]
4586 */
4587int
4588trio_get_alternative
4589TRIO_ARGS1((ref),
4590 trio_pointer_t ref)
4591{
4592 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_ALTERNATIVE)
4593 ? TRUE
4594 : FALSE;
4595}
4596
4597void
4598trio_set_alternative
4599TRIO_ARGS2((ref, is_alternative),
4600 trio_pointer_t ref,
4601 int is_alternative)
4602{
4603 if (is_alternative)
4604 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_ALTERNATIVE;
4605 else
4606 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_ALTERNATIVE;
4607}
4608
4609/*************************************************************************
4610 * trio_get_alignment / trio_set_alignment [public]
4611 */
4612int
4613trio_get_alignment
4614TRIO_ARGS1((ref),
4615 trio_pointer_t ref)
4616{
4617 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LEFTADJUST)
4618 ? TRUE
4619 : FALSE;
4620}
4621
4622void
4623trio_set_alignment
4624TRIO_ARGS2((ref, is_leftaligned),
4625 trio_pointer_t ref,
4626 int is_leftaligned)
4627{
4628 if (is_leftaligned)
4629 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LEFTADJUST;
4630 else
4631 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LEFTADJUST;
4632}
4633
4634/*************************************************************************
4635 * trio_get_spacing /trio_set_spacing [public]
4636 */
4637int
4638trio_get_spacing
4639TRIO_ARGS1((ref),
4640 trio_pointer_t ref)
4641{
4642 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SPACE)
4643 ? TRUE
4644 : FALSE;
4645}
4646
4647void
4648trio_set_spacing
4649TRIO_ARGS2((ref, is_space),
4650 trio_pointer_t ref,
4651 int is_space)
4652{
4653 if (is_space)
4654 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SPACE;
4655 else
4656 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SPACE;
4657}
4658
4659/*************************************************************************
4660 * trio_get_sign / trio_set_sign [public]
4661 */
4662int
4663trio_get_sign
4664TRIO_ARGS1((ref),
4665 trio_pointer_t ref)
4666{
4667 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHOWSIGN)
4668 ? TRUE
4669 : FALSE;
4670}
4671
4672void
4673trio_set_sign
4674TRIO_ARGS2((ref, is_sign),
4675 trio_pointer_t ref,
4676 int is_sign)
4677{
4678 if (is_sign)
4679 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHOWSIGN;
4680 else
4681 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHOWSIGN;
4682}
4683
4684/*************************************************************************
4685 * trio_get_padding / trio_set_padding [public]
4686 */
4687int
4688trio_get_padding
4689TRIO_ARGS1((ref),
4690 trio_pointer_t ref)
4691{
4692 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_NILPADDING)
4693 ? TRUE
4694 : FALSE;
4695}
4696
4697void
4698trio_set_padding
4699TRIO_ARGS2((ref, is_padding),
4700 trio_pointer_t ref,
4701 int is_padding)
4702{
4703 if (is_padding)
4704 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_NILPADDING;
4705 else
4706 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_NILPADDING;
4707}
4708
4709/*************************************************************************
4710 * trio_get_quote / trio_set_quote [public]
4711 */
4712int
4713trio_get_quote
4714TRIO_ARGS1((ref),
4715 trio_pointer_t ref)
4716{
4717 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_QUOTE)
4718 ? TRUE
4719 : FALSE;
4720}
4721
4722void
4723trio_set_quote
4724TRIO_ARGS2((ref, is_quote),
4725 trio_pointer_t ref,
4726 int is_quote)
4727{
4728 if (is_quote)
4729 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_QUOTE;
4730 else
4731 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_QUOTE;
4732}
4733
4734/*************************************************************************
4735 * trio_get_upper / trio_set_upper [public]
4736 */
4737int
4738trio_get_upper
4739TRIO_ARGS1((ref),
4740 trio_pointer_t ref)
4741{
4742 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_UPPER)
4743 ? TRUE
4744 : FALSE;
4745}
4746
4747void
4748trio_set_upper
4749TRIO_ARGS2((ref, is_upper),
4750 trio_pointer_t ref,
4751 int is_upper)
4752{
4753 if (is_upper)
4754 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_UPPER;
4755 else
4756 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_UPPER;
4757}
4758
4759/*************************************************************************
4760 * trio_get_largest / trio_set_largest [public]
4761 */
4762#if TRIO_C99
4763int
4764trio_get_largest
4765TRIO_ARGS1((ref),
4766 trio_pointer_t ref)
4767{
4768 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_INTMAX_T)
4769 ? TRUE
4770 : FALSE;
4771}
4772
4773void
4774trio_set_largest
4775TRIO_ARGS2((ref, is_largest),
4776 trio_pointer_t ref,
4777 int is_largest)
4778{
4779 if (is_largest)
4780 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_INTMAX_T;
4781 else
4782 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_INTMAX_T;
4783}
4784#endif
4785
4786/*************************************************************************
4787 * trio_get_ptrdiff / trio_set_ptrdiff [public]
4788 */
4789int
4790trio_get_ptrdiff
4791TRIO_ARGS1((ref),
4792 trio_pointer_t ref)
4793{
4794 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_PTRDIFF_T)
4795 ? TRUE
4796 : FALSE;
4797}
4798
4799void
4800trio_set_ptrdiff
4801TRIO_ARGS2((ref, is_ptrdiff),
4802 trio_pointer_t ref,
4803 int is_ptrdiff)
4804{
4805 if (is_ptrdiff)
4806 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_PTRDIFF_T;
4807 else
4808 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_PTRDIFF_T;
4809}
4810
4811/*************************************************************************
4812 * trio_get_size / trio_set_size [public]
4813 */
4814#if TRIO_C99
4815int
4816trio_get_size
4817TRIO_ARGS1((ref),
4818 trio_pointer_t ref)
4819{
4820 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SIZE_T)
4821 ? TRUE
4822 : FALSE;
4823}
4824
4825void
4826trio_set_size
4827TRIO_ARGS2((ref, is_size),
4828 trio_pointer_t ref,
4829 int is_size)
4830{
4831 if (is_size)
4832 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SIZE_T;
4833 else
4834 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SIZE_T;
4835}
4836#endif
4837
4838/*************************************************************************
4839 * trio_print_int [public]
4840 */
4841void
4842trio_print_int
4843TRIO_ARGS2((ref, number),
4844 trio_pointer_t ref,
4845 int number)
4846{
4847 trio_reference_t *self = (trio_reference_t *)ref;
4848
4849 TrioWriteNumber(self->data,
4850 (trio_uintmax_t)number,
4851 self->parameter->flags,
4852 self->parameter->width,
4853 self->parameter->precision,
4854 self->parameter->base);
4855}
4856
4857/*************************************************************************
4858 * trio_print_uint [public]
4859 */
4860void
4861trio_print_uint
4862TRIO_ARGS2((ref, number),
4863 trio_pointer_t ref,
4864 unsigned int number)
4865{
4866 trio_reference_t *self = (trio_reference_t *)ref;
4867
4868 TrioWriteNumber(self->data,
4869 (trio_uintmax_t)number,
4870 self->parameter->flags | FLAGS_UNSIGNED,
4871 self->parameter->width,
4872 self->parameter->precision,
4873 self->parameter->base);
4874}
4875
4876/*************************************************************************
4877 * trio_print_double [public]
4878 */
4879void
4880trio_print_double
4881TRIO_ARGS2((ref, number),
4882 trio_pointer_t ref,
4883 double number)
4884{
4885 trio_reference_t *self = (trio_reference_t *)ref;
4886
4887 TrioWriteDouble(self->data,
4888 number,
4889 self->parameter->flags,
4890 self->parameter->width,
4891 self->parameter->precision,
4892 self->parameter->base);
4893}
4894
4895/*************************************************************************
4896 * trio_print_string [public]
4897 */
4898void
4899trio_print_string
4900TRIO_ARGS2((ref, string),
4901 trio_pointer_t ref,
4902 char *string)
4903{
4904 trio_reference_t *self = (trio_reference_t *)ref;
4905
4906 TrioWriteString(self->data,
4907 string,
4908 self->parameter->flags,
4909 self->parameter->width,
4910 self->parameter->precision);
4911}
4912
4913/*************************************************************************
4914 * trio_print_ref [public]
4915 */
4916int
4917trio_print_ref
4918TRIO_VARGS3((ref, format, va_alist),
4919 trio_pointer_t ref,
4920 TRIO_CONST char *format,
4921 TRIO_VA_DECL)
4922{
4923 int status;
4924 va_list arglist;
4925
4926 assert(VALID(format));
4927
4928 TRIO_VA_START(arglist, format);
4929 status = TrioFormatRef((trio_reference_t *)ref, format, &arglist, NULL);
4930 TRIO_VA_END(arglist);
4931 return status;
4932}
4933
4934/*************************************************************************
4935 * trio_vprint_ref [public]
4936 */
4937int
4938trio_vprint_ref
4939TRIO_ARGS3((ref, format, arglist),
4940 trio_pointer_t ref,
4941 TRIO_CONST char *format,
4942 va_list arglist)
4943{
4944 assert(VALID(format));
4945
4946 return TrioFormatRef((trio_reference_t *)ref, format, &arglist, NULL);
4947}
4948
4949/*************************************************************************
4950 * trio_printv_ref [public]
4951 */
4952int
4953trio_printv_ref
4954TRIO_ARGS3((ref, format, argarray),
4955 trio_pointer_t ref,
4956 TRIO_CONST char *format,
4957 trio_pointer_t *argarray)
4958{
4959 assert(VALID(format));
4960
4961 return TrioFormatRef((trio_reference_t *)ref, format, NULL, argarray);
4962}
4963
4964#endif /* TRIO_EXTENSION */
4965
4966/*************************************************************************
4967 * trio_print_pointer [public]
4968 */
4969void
4970trio_print_pointer
4971TRIO_ARGS2((ref, pointer),
4972 trio_pointer_t ref,
4973 trio_pointer_t pointer)
4974{
4975 trio_reference_t *self = (trio_reference_t *)ref;
4976 trio_flags_t flags;
4977 trio_uintmax_t number;
4978
4979 if (NULL == pointer)
4980 {
4981 TRIO_CONST char *string = internalNullString;
4982 while (*string)
4983 self->data->OutStream(self->data, *string++);
4984 }
4985 else
4986 {
4987 /*
4988 * The subtraction of the null pointer is a workaround
4989 * to avoid a compiler warning. The performance overhead
4990 * is negligible (and likely to be removed by an
4991 * optimizing compiler). The (char *) casting is done
4992 * to please ANSI C++.
4993 */
4994 number = (trio_uintmax_t)((char *)pointer - (char *)0);
4995 /* Shrink to size of pointer */
4996 number &= (trio_uintmax_t)-1;
4997 flags = self->parameter->flags;
4998 flags |= (FLAGS_UNSIGNED | FLAGS_ALTERNATIVE |
4999 FLAGS_NILPADDING);
5000 TrioWriteNumber(self->data,
5001 number,
5002 flags,
5003 POINTER_WIDTH,
5004 NO_PRECISION,
5005 BASE_HEX);
5006 }
5007}
5008
5009/** @} End of UserDefined documentation module */
5010
5011/*************************************************************************
5012 *
5013 * LOCALES
5014 *
5015 ************************************************************************/
5016
5017/*************************************************************************
5018 * trio_locale_set_decimal_point
5019 *
5020 * Decimal point can only be one character. The input argument is a
5021 * string to enable multibyte characters. At most MB_LEN_MAX characters
5022 * will be used.
5023 */
5024TRIO_PUBLIC void
5025trio_locale_set_decimal_point
5026TRIO_ARGS1((decimalPoint),
5027 char *decimalPoint)
5028{
5029#if defined(USE_LOCALE)
5030 if (NULL == internalLocaleValues)
5031 {
5032 TrioSetLocale();
5033 }
5034#endif
5035 internalDecimalPointLength = trio_length(decimalPoint);
5036 if (internalDecimalPointLength == 1)
5037 {
5038 internalDecimalPoint = *decimalPoint;
5039 }
5040 else
5041 {
5042 internalDecimalPoint = NIL;
5043 trio_copy_max(internalDecimalPointString,
5044 sizeof(internalDecimalPointString),
5045 decimalPoint);
5046 }
5047}
5048
5049/*************************************************************************
5050 * trio_locale_set_thousand_separator
5051 *
5052 * See trio_locale_set_decimal_point
5053 */
5054TRIO_PUBLIC void
5055trio_locale_set_thousand_separator
5056TRIO_ARGS1((thousandSeparator),
5057 char *thousandSeparator)
5058{
5059#if defined(USE_LOCALE)
5060 if (NULL == internalLocaleValues)
5061 {
5062 TrioSetLocale();
5063 }
5064#endif
5065 trio_copy_max(internalThousandSeparator,
5066 sizeof(internalThousandSeparator),
5067 thousandSeparator);
5068 internalThousandSeparatorLength = trio_length(internalThousandSeparator);
5069}
5070
5071/*************************************************************************
5072 * trio_locale_set_grouping
5073 *
5074 * Array of bytes. Reversed order.
5075 *
5076 * CHAR_MAX : No further grouping
5077 * 0 : Repeat last group for the remaining digits (not necessary
5078 * as C strings are zero-terminated)
5079 * n : Set current group to n
5080 *
5081 * Same order as the grouping attribute in LC_NUMERIC.
5082 */
5083TRIO_PUBLIC void
5084trio_locale_set_grouping
5085TRIO_ARGS1((grouping),
5086 char *grouping)
5087{
5088#if defined(USE_LOCALE)
5089 if (NULL == internalLocaleValues)
5090 {
5091 TrioSetLocale();
5092 }
5093#endif
5094 trio_copy_max(internalGrouping,
5095 sizeof(internalGrouping),
5096 grouping);
5097}
5098
5099
5100/*************************************************************************
5101 *
5102 * SCANNING
5103 *
5104 ************************************************************************/
5105
5106/*************************************************************************
5107 * TrioSkipWhitespaces
5108 */
5109TRIO_PRIVATE int
5110TrioSkipWhitespaces
5111TRIO_ARGS1((self),
5112 trio_class_t *self)
5113{
5114 int ch;
5115
5116 ch = self->current;
5117 while (isspace(ch))
5118 {
5119 self->InStream(self, &ch);
5120 }
5121 return ch;
5122}
5123
5124/*************************************************************************
5125 * TrioGetCollation
5126 */
5127#if TRIO_EXTENSION
5128TRIO_PRIVATE void
5129TrioGetCollation(TRIO_NOARGS)
5130{
5131 int i;
5132 int j;
5133 int k;
5134 char first[2];
5135 char second[2];
5136
5137 /* This is computationally expensive */
5138 first[1] = NIL;
5139 second[1] = NIL;
5140 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5141 {
5142 k = 0;
5143 first[0] = (char)i;
5144 for (j = 0; j < MAX_CHARACTER_CLASS; j++)
5145 {
5146 second[0] = (char)j;
5147 if (trio_equal_locale(first, second))
5148 internalCollationArray[i][k++] = (char)j;
5149 }
5150 internalCollationArray[i][k] = NIL;
5151 }
5152}
5153#endif
5154
5155/*************************************************************************
5156 * TrioGetCharacterClass
5157 *
5158 * FIXME:
5159 * multibyte
5160 */
5161TRIO_PRIVATE int
5162TrioGetCharacterClass
5163TRIO_ARGS4((format, indexPointer, flagsPointer, characterclass),
5164 TRIO_CONST char *format,
5165 int *indexPointer,
5166 trio_flags_t *flagsPointer,
5167 int *characterclass)
5168{
5169 int index = *indexPointer;
5170 int i;
5171 char ch;
5172 char range_begin;
5173 char range_end;
5174
5175 *flagsPointer &= ~FLAGS_EXCLUDE;
5176
5177 if (format[index] == QUALIFIER_CIRCUMFLEX)
5178 {
5179 *flagsPointer |= FLAGS_EXCLUDE;
5180 index++;
5181 }
5182 /*
5183 * If the ungroup character is at the beginning of the scanlist,
5184 * it will be part of the class, and a second ungroup character
5185 * must follow to end the group.
5186 */
5187 if (format[index] == SPECIFIER_UNGROUP)
5188 {
5189 characterclass[(int)SPECIFIER_UNGROUP]++;
5190 index++;
5191 }
5192 /*
5193 * Minus is used to specify ranges. To include minus in the class,
5194 * it must be at the beginning of the list
5195 */
5196 if (format[index] == QUALIFIER_MINUS)
5197 {
5198 characterclass[(int)QUALIFIER_MINUS]++;
5199 index++;
5200 }
5201 /* Collect characters */
5202 for (ch = format[index];
5203 (ch != SPECIFIER_UNGROUP) && (ch != NIL);
5204 ch = format[++index])
5205 {
5206 switch (ch)
5207 {
5208 case QUALIFIER_MINUS: /* Scanlist ranges */
5209
5210 /*
5211 * Both C99 and UNIX98 describes ranges as implementation-
5212 * defined.
5213 *
5214 * We support the following behaviour (although this may
5215 * change as we become wiser)
5216 * - only increasing ranges, ie. [a-b] but not [b-a]
5217 * - transitive ranges, ie. [a-b-c] == [a-c]
5218 * - trailing minus, ie. [a-] is interpreted as an 'a'
5219 * and a '-'
5220 * - duplicates (although we can easily convert these
5221 * into errors)
5222 */
5223 range_begin = format[index - 1];
5224 range_end = format[++index];
5225 if (range_end == SPECIFIER_UNGROUP)
5226 {
5227 /* Trailing minus is included */
5228 characterclass[(int)ch]++;
5229 ch = range_end;
5230 break; /* for */
5231 }
5232 if (range_end == NIL)
5233 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
5234 if (range_begin > range_end)
5235 return TRIO_ERROR_RETURN(TRIO_ERANGE, index);
5236
5237 for (i = (int)range_begin; i <= (int)range_end; i++)
5238 characterclass[i]++;
5239
5240 ch = range_end;
5241 break;
5242
5243#if TRIO_EXTENSION
5244
5245 case SPECIFIER_GROUP:
5246
5247 switch (format[index + 1])
5248 {
5249 case QUALIFIER_DOT: /* Collating symbol */
5250 /*
5251 * FIXME: This will be easier to implement when multibyte
5252 * characters have been implemented. Until now, we ignore
5253 * this feature.
5254 */
5255 for (i = index + 2; ; i++)
5256 {
5257 if (format[i] == NIL)
5258 /* Error in syntax */
5259 return -1;
5260 else if (format[i] == QUALIFIER_DOT)
5261 break; /* for */
5262 }
5263 if (format[++i] != SPECIFIER_UNGROUP)
5264 return -1;
5265
5266 index = i;
5267 break;
5268
5269 case QUALIFIER_EQUAL: /* Equivalence class expressions */
5270 {
5271 unsigned int j;
5272 unsigned int k;
5273
5274 if (internalCollationUnconverted)
5275 {
5276 /* Lazy evaluation of collation array */
5277 TrioGetCollation();
5278 internalCollationUnconverted = FALSE;
5279 }
5280 for (i = index + 2; ; i++)
5281 {
5282 if (format[i] == NIL)
5283 /* Error in syntax */
5284 return -1;
5285 else if (format[i] == QUALIFIER_EQUAL)
5286 break; /* for */
5287 else
5288 {
5289 /* Mark any equivalent character */
5290 k = (unsigned int)format[i];
5291 for (j = 0; internalCollationArray[k][j] != NIL; j++)
5292 characterclass[(int)internalCollationArray[k][j]]++;
5293 }
5294 }
5295 if (format[++i] != SPECIFIER_UNGROUP)
5296 return -1;
5297
5298 index = i;
5299 }
5300 break;
5301
5302 case QUALIFIER_COLON: /* Character class expressions */
5303
5304 if (trio_equal_max(CLASS_ALNUM, sizeof(CLASS_ALNUM) - 1,
5305 &format[index]))
5306 {
5307 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5308 if (isalnum(i))
5309 characterclass[i]++;
5310 index += sizeof(CLASS_ALNUM) - 1;
5311 }
5312 else if (trio_equal_max(CLASS_ALPHA, sizeof(CLASS_ALPHA) - 1,
5313 &format[index]))
5314 {
5315 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5316 if (isalpha(i))
5317 characterclass[i]++;
5318 index += sizeof(CLASS_ALPHA) - 1;
5319 }
5320 else if (trio_equal_max(CLASS_CNTRL, sizeof(CLASS_CNTRL) - 1,
5321 &format[index]))
5322 {
5323 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5324 if (iscntrl(i))
5325 characterclass[i]++;
5326 index += sizeof(CLASS_CNTRL) - 1;
5327 }
5328 else if (trio_equal_max(CLASS_DIGIT, sizeof(CLASS_DIGIT) - 1,
5329 &format[index]))
5330 {
5331 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5332 if (isdigit(i))
5333 characterclass[i]++;
5334 index += sizeof(CLASS_DIGIT) - 1;
5335 }
5336 else if (trio_equal_max(CLASS_GRAPH, sizeof(CLASS_GRAPH) - 1,
5337 &format[index]))
5338 {
5339 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5340 if (isgraph(i))
5341 characterclass[i]++;
5342 index += sizeof(CLASS_GRAPH) - 1;
5343 }
5344 else if (trio_equal_max(CLASS_LOWER, sizeof(CLASS_LOWER) - 1,
5345 &format[index]))
5346 {
5347 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5348 if (islower(i))
5349 characterclass[i]++;
5350 index += sizeof(CLASS_LOWER) - 1;
5351 }
5352 else if (trio_equal_max(CLASS_PRINT, sizeof(CLASS_PRINT) - 1,
5353 &format[index]))
5354 {
5355 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5356 if (isprint(i))
5357 characterclass[i]++;
5358 index += sizeof(CLASS_PRINT) - 1;
5359 }
5360 else if (trio_equal_max(CLASS_PUNCT, sizeof(CLASS_PUNCT) - 1,
5361 &format[index]))
5362 {
5363 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5364 if (ispunct(i))
5365 characterclass[i]++;
5366 index += sizeof(CLASS_PUNCT) - 1;
5367 }
5368 else if (trio_equal_max(CLASS_SPACE, sizeof(CLASS_SPACE) - 1,
5369 &format[index]))
5370 {
5371 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5372 if (isspace(i))
5373 characterclass[i]++;
5374 index += sizeof(CLASS_SPACE) - 1;
5375 }
5376 else if (trio_equal_max(CLASS_UPPER, sizeof(CLASS_UPPER) - 1,
5377 &format[index]))
5378 {
5379 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5380 if (isupper(i))
5381 characterclass[i]++;
5382 index += sizeof(CLASS_UPPER) - 1;
5383 }
5384 else if (trio_equal_max(CLASS_XDIGIT, sizeof(CLASS_XDIGIT) - 1,
5385 &format[index]))
5386 {
5387 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5388 if (isxdigit(i))
5389 characterclass[i]++;
5390 index += sizeof(CLASS_XDIGIT) - 1;
5391 }
5392 else
5393 {
5394 characterclass[(int)ch]++;
5395 }
5396 break;
5397
5398 default:
5399 characterclass[(int)ch]++;
5400 break;
5401 }
5402 break;
5403
5404#endif /* TRIO_EXTENSION */
5405
5406 default:
5407 characterclass[(int)ch]++;
5408 break;
5409 }
5410 }
5411 return 0;
5412}
5413
5414/*************************************************************************
5415 * TrioReadNumber
5416 *
5417 * We implement our own number conversion in preference of strtol and
5418 * strtoul, because we must handle 'long long' and thousand separators.
5419 */
5420TRIO_PRIVATE BOOLEAN_T
5421TrioReadNumber
5422TRIO_ARGS5((self, target, flags, width, base),
5423 trio_class_t *self,
5424 trio_uintmax_t *target,
5425 trio_flags_t flags,
5426 int width,
5427 int base)
5428{
5429 trio_uintmax_t number = 0;
5430 int digit;
5431 int count;
5432 BOOLEAN_T isNegative = FALSE;
5433 BOOLEAN_T gotNumber = FALSE;
5434 int j;
5435
5436 assert(VALID(self));
5437 assert(VALID(self->InStream));
5438 assert((base >= MIN_BASE && base <= MAX_BASE) || (base == NO_BASE));
5439
5440 if (internalDigitsUnconverted)
5441 {
5442 /* Lazy evaluation of digits array */
5443 memset(internalDigitArray, -1, sizeof(internalDigitArray));
5444 for (j = 0; j < (int)sizeof(internalDigitsLower) - 1; j++)
5445 {
5446 internalDigitArray[(int)internalDigitsLower[j]] = j;
5447 internalDigitArray[(int)internalDigitsUpper[j]] = j;
5448 }
5449 internalDigitsUnconverted = FALSE;
5450 }
5451
5452 TrioSkipWhitespaces(self);
5453
5454 if (!(flags & FLAGS_UNSIGNED))
5455 {
5456 /* Leading sign */
5457 if (self->current == '+')
5458 {
5459 self->InStream(self, NULL);
5460 }
5461 else if (self->current == '-')
5462 {
5463 self->InStream(self, NULL);
5464 isNegative = TRUE;
5465 }
5466 }
5467
5468 count = self->processed;
5469
5470 if (flags & FLAGS_ALTERNATIVE)
5471 {
5472 switch (base)
5473 {
5474 case NO_BASE:
5475 case BASE_OCTAL:
5476 case BASE_HEX:
5477 case BASE_BINARY:
5478 if (self->current == '0')
5479 {
5480 self->InStream(self, NULL);
5481 if (self->current)
5482 {
5483 if ((base == BASE_HEX) &&
5484 (trio_to_upper(self->current) == 'X'))
5485 {
5486 self->InStream(self, NULL);
5487 }
5488 else if ((base == BASE_BINARY) &&
5489 (trio_to_upper(self->current) == 'B'))
5490 {
5491 self->InStream(self, NULL);
5492 }
5493 }
5494 }
5495 else
5496 return FALSE;
5497 break;
5498 default:
5499 break;
5500 }
5501 }
5502
5503 while (((width == NO_WIDTH) || (self->processed - count < width)) &&
5504 (! ((self->current == EOF) || isspace(self->current))))
5505 {
5506 if (isascii(self->current))
5507 {
5508 digit = internalDigitArray[self->current];
5509 /* Abort if digit is not allowed in the specified base */
5510 if ((digit == -1) || (digit >= base))
5511 break;
5512 }
5513 else if (flags & FLAGS_QUOTE)
5514 {
5515 /* Compare with thousands separator */
5516 for (j = 0; internalThousandSeparator[j] && self->current; j++)
5517 {
5518 if (internalThousandSeparator[j] != self->current)
5519 break;
5520
5521 self->InStream(self, NULL);
5522 }
5523 if (internalThousandSeparator[j])
5524 break; /* Mismatch */
5525 else
5526 continue; /* Match */
5527 }
5528 else
5529 break;
5530
5531 number *= base;
5532 number += digit;
5533 gotNumber = TRUE; /* we need at least one digit */
5534
5535 self->InStream(self, NULL);
5536 }
5537
5538 /* Was anything read at all? */
5539 if (!gotNumber)
5540 return FALSE;
5541
5542 if (target)
5543 *target = (isNegative) ? -((trio_intmax_t)number) : number;
5544 return TRUE;
5545}
5546
5547/*************************************************************************
5548 * TrioReadChar
5549 */
5550TRIO_PRIVATE int
5551TrioReadChar
5552TRIO_ARGS4((self, target, flags, width),
5553 trio_class_t *self,
5554 char *target,
5555 trio_flags_t flags,
5556 int width)
5557{
5558 int i;
5559 char ch;
5560 trio_uintmax_t number;
5561
5562 assert(VALID(self));
5563 assert(VALID(self->InStream));
5564
5565 for (i = 0;
5566 (self->current != EOF) && (i < width);
5567 i++)
5568 {
5569 ch = (char)self->current;
5570 self->InStream(self, NULL);
5571 if ((flags & FLAGS_ALTERNATIVE) && (ch == CHAR_BACKSLASH))
5572 {
5573 switch (self->current)
5574 {
5575 case '\\': ch = '\\'; break;
5576 case 'a': ch = '\007'; break;
5577 case 'b': ch = '\b'; break;
5578 case 'f': ch = '\f'; break;
5579 case 'n': ch = '\n'; break;
5580 case 'r': ch = '\r'; break;
5581 case 't': ch = '\t'; break;
5582 case 'v': ch = '\v'; break;
5583 default:
5584 if (isdigit(self->current))
5585 {
5586 /* Read octal number */
5587 if (!TrioReadNumber(self, &number, 0, 3, BASE_OCTAL))
5588 return 0;
5589 ch = (char)number;
5590 }
5591 else if (trio_to_upper(self->current) == 'X')
5592 {
5593 /* Read hexadecimal number */
5594 self->InStream(self, NULL);
5595 if (!TrioReadNumber(self, &number, 0, 2, BASE_HEX))
5596 return 0;
5597 ch = (char)number;
5598 }
5599 else
5600 {
5601 ch = (char)self->current;
5602 }
5603 break;
5604 }
5605 }
5606
5607 if (target)
5608 target[i] = ch;
5609 }
5610 return i + 1;
5611}
5612
5613/*************************************************************************
5614 * TrioReadString
5615 */
5616TRIO_PRIVATE BOOLEAN_T
5617TrioReadString
5618TRIO_ARGS4((self, target, flags, width),
5619 trio_class_t *self,
5620 char *target,
5621 trio_flags_t flags,
5622 int width)
5623{
5624 int i;
5625
5626 assert(VALID(self));
5627 assert(VALID(self->InStream));
5628
5629 TrioSkipWhitespaces(self);
5630
5631 /*
5632 * Continue until end of string is reached, a whitespace is encountered,
5633 * or width is exceeded
5634 */
5635 for (i = 0;
5636 ((width == NO_WIDTH) || (i < width)) &&
5637 (! ((self->current == EOF) || isspace(self->current)));
5638 i++)
5639 {
5640 if (TrioReadChar(self, (target ? &target[i] : 0), flags, 1) == 0)
5641 break; /* for */
5642 }
5643 if (target)
5644 target[i] = NIL;
5645 return TRUE;
5646}
5647
5648/*************************************************************************
5649 * TrioReadWideChar
5650 */
5651#if TRIO_WIDECHAR
5652TRIO_PRIVATE int
5653TrioReadWideChar
5654TRIO_ARGS4((self, target, flags, width),
5655 trio_class_t *self,
5656 trio_wchar_t *target,
5657 trio_flags_t flags,
5658 int width)
5659{
5660 int i;
5661 int j;
5662 int size;
5663 int amount = 0;
5664 trio_wchar_t wch;
5665 char buffer[MB_LEN_MAX + 1];
5666
5667 assert(VALID(self));
5668 assert(VALID(self->InStream));
5669
5670 for (i = 0;
5671 (self->current != EOF) && (i < width);
5672 i++)
5673 {
5674 if (isascii(self->current))
5675 {
5676 if (TrioReadChar(self, buffer, flags, 1) == 0)
5677 return 0;
5678 buffer[1] = NIL;
5679 }
5680 else
5681 {
5682 /*
5683 * Collect a multibyte character, by enlarging buffer until
5684 * it contains a fully legal multibyte character, or the
5685 * buffer is full.
5686 */
5687 j = 0;
5688 do
5689 {
5690 buffer[j++] = (char)self->current;
5691 buffer[j] = NIL;
5692 self->InStream(self, NULL);
5693 }
5694 while ((j < (int)sizeof(buffer)) && (mblen(buffer, (size_t)j) != j));
5695 }
5696 if (target)
5697 {
5698 size = mbtowc(&wch, buffer, sizeof(buffer));
5699 if (size > 0)
5700 target[i] = wch;
5701 }
5702 amount += size;
5703 self->InStream(self, NULL);
5704 }
5705 return amount;
5706}
5707#endif /* TRIO_WIDECHAR */
5708
5709/*************************************************************************
5710 * TrioReadWideString
5711 */
5712#if TRIO_WIDECHAR
5713TRIO_PRIVATE BOOLEAN_T
5714TrioReadWideString
5715TRIO_ARGS4((self, target, flags, width),
5716 trio_class_t *self,
5717 trio_wchar_t *target,
5718 trio_flags_t flags,
5719 int width)
5720{
5721 int i;
5722 int size;
5723
5724 assert(VALID(self));
5725 assert(VALID(self->InStream));
5726
5727 TrioSkipWhitespaces(self);
5728
5729#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
5730 (void)mblen(NULL, 0);
5731#endif
5732
5733 /*
5734 * Continue until end of string is reached, a whitespace is encountered,
5735 * or width is exceeded
5736 */
5737 for (i = 0;
5738 ((width == NO_WIDTH) || (i < width)) &&
5739 (! ((self->current == EOF) || isspace(self->current)));
5740 )
5741 {
5742 size = TrioReadWideChar(self, &target[i], flags, 1);
5743 if (size == 0)
5744 break; /* for */
5745
5746 i += size;
5747 }
5748 if (target)
5749 target[i] = WCONST('\0');
5750 return TRUE;
5751}
5752#endif /* TRIO_WIDECHAR */
5753
5754/*************************************************************************
5755 * TrioReadGroup
5756 *
5757 * FIXME: characterclass does not work with multibyte characters
5758 */
5759TRIO_PRIVATE BOOLEAN_T
5760TrioReadGroup
5761TRIO_ARGS5((self, target, characterclass, flags, width),
5762 trio_class_t *self,
5763 char *target,
5764 int *characterclass,
5765 trio_flags_t flags,
5766 int width)
5767{
5768 int ch;
5769 int i;
5770
5771 assert(VALID(self));
5772 assert(VALID(self->InStream));
5773
5774 ch = self->current;
5775 for (i = 0;
5776 ((width == NO_WIDTH) || (i < width)) &&
5777 (! ((ch == EOF) ||
5778 (((flags & FLAGS_EXCLUDE) != 0) ^ (characterclass[ch] == 0))));
5779 i++)
5780 {
5781 if (target)
5782 target[i] = (char)ch;
5783 self->InStream(self, &ch);
5784 }
5785
5786 if (target)
5787 target[i] = NIL;
5788 return TRUE;
5789}
5790
5791/*************************************************************************
5792 * TrioReadDouble
5793 *
5794 * FIXME:
5795 * add long double
5796 * handle base
5797 */
5798TRIO_PRIVATE BOOLEAN_T
5799TrioReadDouble
5800TRIO_ARGS4((self, target, flags, width),
5801 trio_class_t *self,
5802 trio_pointer_t target,
5803 trio_flags_t flags,
5804 int width)
5805{
5806 int ch;
5807 char doubleString[512];
5808 int index = 0;
5809 int start;
5810 int j;
5811 BOOLEAN_T isHex = FALSE;
5812
5813 doubleString[0] = 0;
5814
5815 if ((width == NO_WIDTH) || (width > (int)sizeof(doubleString) - 1))
5816 width = sizeof(doubleString) - 1;
5817
5818 TrioSkipWhitespaces(self);
5819
5820 /*
5821 * Read entire double number from stream. trio_to_double requires
5822 * a string as input, but InStream can be anything, so we have to
5823 * collect all characters.
5824 */
5825 ch = self->current;
5826 if ((ch == '+') || (ch == '-'))
5827 {
5828 doubleString[index++] = (char)ch;
5829 self->InStream(self, &ch);
5830 width--;
5831 }
5832
5833 start = index;
5834 switch (ch)
5835 {
5836 case 'n':
5837 case 'N':
5838 /* Not-a-number */
5839 if (index != 0)
5840 break;
5841 /* FALLTHROUGH */
5842 case 'i':
5843 case 'I':
5844 /* Infinity */
5845 while (isalpha(ch) && (index - start < width))
5846 {
5847 doubleString[index++] = (char)ch;
5848 self->InStream(self, &ch);
5849 }
5850 doubleString[index] = NIL;
5851
5852 /* Case insensitive string comparison */
5853 if (trio_equal(&doubleString[start], INFINITE_UPPER) ||
5854 trio_equal(&doubleString[start], LONG_INFINITE_UPPER))
5855 {
5856 if (flags & FLAGS_LONGDOUBLE)
5857 {
5858 if ((start == 1) && (doubleString[0] == '-'))
5859 {
5860 *((trio_long_double_t *)target) = trio_ninf();
5861 }
5862 else
5863 {
5864 *((trio_long_double_t *)target) = trio_pinf();
5865 }
5866 }
5867 else
5868 {
5869 if ((start == 1) && (doubleString[0] == '-'))
5870 {
5871 *((double *)target) = trio_ninf();
5872 }
5873 else
5874 {
5875 *((double *)target) = trio_pinf();
5876 }
5877 }
5878 return TRUE;
5879 }
5880 if (trio_equal(doubleString, NAN_UPPER))
5881 {
5882 /* NaN must not have a preceeding + nor - */
5883 if (flags & FLAGS_LONGDOUBLE)
5884 {
5885 *((trio_long_double_t *)target) = trio_nan();
5886 }
5887 else
5888 {
5889 *((double *)target) = trio_nan();
5890 }
5891 return TRUE;
5892 }
5893 return FALSE;
5894
5895 case '0':
5896 doubleString[index++] = (char)ch;
5897 self->InStream(self, &ch);
5898 if (trio_to_upper(ch) == 'X')
5899 {
5900 isHex = TRUE;
5901 doubleString[index++] = (char)ch;
5902 self->InStream(self, &ch);
5903 }
5904 break;
5905
5906 default:
5907 break;
5908 }
5909
5910 while ((ch != EOF) && (index - start < width))
5911 {
5912 /* Integer part */
5913 if (isHex ? isxdigit(ch) : isdigit(ch))
5914 {
5915 doubleString[index++] = (char)ch;
5916 self->InStream(self, &ch);
5917 }
5918 else if (flags & FLAGS_QUOTE)
5919 {
5920 /* Compare with thousands separator */
5921 for (j = 0; internalThousandSeparator[j] && self->current; j++)
5922 {
5923 if (internalThousandSeparator[j] != self->current)
5924 break;
5925
5926 self->InStream(self, &ch);
5927 }
5928 if (internalThousandSeparator[j])
5929 break; /* Mismatch */
5930 else
5931 continue; /* Match */
5932 }
5933 else
5934 break; /* while */
5935 }
5936 if (ch == '.')
5937 {
5938 /* Decimal part */
5939 doubleString[index++] = (char)ch;
5940 self->InStream(self, &ch);
5941 while ((isHex ? isxdigit(ch) : isdigit(ch)) &&
5942 (index - start < width))
5943 {
5944 doubleString[index++] = (char)ch;
5945 self->InStream(self, &ch);
5946 }
5947 if (isHex ? (trio_to_upper(ch) == 'P') : (trio_to_upper(ch) == 'E'))
5948 {
5949 /* Exponent */
5950 doubleString[index++] = (char)ch;
5951 self->InStream(self, &ch);
5952 if ((ch == '+') || (ch == '-'))
5953 {
5954 doubleString[index++] = (char)ch;
5955 self->InStream(self, &ch);
5956 }
5957 while (isdigit(ch) && (index - start < width))
5958 {
5959 doubleString[index++] = (char)ch;
5960 self->InStream(self, &ch);
5961 }
5962 }
5963 }
5964
5965 if ((index == start) || (*doubleString == NIL))
5966 return FALSE;
5967
5968 doubleString[index] = 0;
5969
5970 if (flags & FLAGS_LONGDOUBLE)
5971 {
5972 *((trio_long_double_t *)target) = trio_to_long_double(doubleString, NULL);
5973 }
5974 else
5975 {
5976 *((double *)target) = trio_to_double(doubleString, NULL);
5977 }
5978 return TRUE;
5979}
5980
5981/*************************************************************************
5982 * TrioReadPointer
5983 */
5984TRIO_PRIVATE BOOLEAN_T
5985TrioReadPointer
5986TRIO_ARGS3((self, target, flags),
5987 trio_class_t *self,
5988 trio_pointer_t *target,
5989 trio_flags_t flags)
5990{
5991 trio_uintmax_t number;
5992 char buffer[sizeof(internalNullString)];
5993
5994 flags |= (FLAGS_UNSIGNED | FLAGS_ALTERNATIVE | FLAGS_NILPADDING);
5995
5996 if (TrioReadNumber(self,
5997 &number,
5998 flags,
5999 POINTER_WIDTH,
6000 BASE_HEX))
6001 {
6002 /*
6003 * The strange assignment of number is a workaround for a compiler
6004 * warning
6005 */
6006 if (target)
6007 *target = (char *)0 + number;
6008 return TRUE;
6009 }
6010 else if (TrioReadString(self,
6011 (flags & FLAGS_IGNORE)
6012 ? NULL
6013 : buffer,
6014 0,
6015 sizeof(internalNullString) - 1))
6016 {
6017 if (trio_equal_case(buffer, internalNullString))
6018 {
6019 if (target)
6020 *target = NULL;
6021 return TRUE;
6022 }
6023 }
6024 return FALSE;
6025}
6026
6027/*************************************************************************
6028 * TrioScanProcess
6029 */
6030TRIO_PRIVATE int
6031TrioScanProcess
6032TRIO_ARGS3((data, format, parameters),
6033 trio_class_t *data,
6034 TRIO_CONST char *format,
6035 trio_parameter_t *parameters)
6036{
6037#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
6038 int charlen;
6039 int cnt;
6040#endif
6041 int assignment;
6042 int ch;
6043 int index; /* Index of format string */
6044 int i; /* Index of current parameter */
6045 trio_flags_t flags;
6046 int width;
6047 int base;
6048 trio_pointer_t pointer;
6049
6050 assignment = 0;
6051 i = 0;
6052 index = 0;
6053 data->InStream(data, &ch);
6054
6055#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
6056 (void)mblen(NULL, 0);
6057#endif
6058
6059 while (format[index])
6060 {
6061#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
6062 if (! isascii(format[index]))
6063 {
6064 charlen = mblen(&format[index], MB_LEN_MAX);
6065 if (charlen != -1)
6066 {
6067 /* Compare multibyte characters in format string */
6068 for (cnt = 0; cnt < charlen - 1; cnt++)
6069 {
6070 if (ch != format[index + cnt])
6071 {
6072 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
6073 }
6074 data->InStream(data, &ch);
6075 }
6076 continue; /* while characters left in formatting string */
6077 }
6078 }
6079#endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */
6080
6081 if ((EOF == ch) && (parameters[i].type != FORMAT_COUNT))
6082 {
6083 return (assignment > 0) ? assignment : EOF;
6084 }
6085
6086 if (CHAR_IDENTIFIER == format[index])
6087 {
6088 if (CHAR_IDENTIFIER == format[index + 1])
6089 {
6090 /* Two % in format matches one % in input stream */
6091 if (CHAR_IDENTIFIER == ch)
6092 {
6093 data->InStream(data, &ch);
6094 index += 2;
6095 continue; /* while format chars left */
6096 }
6097 else
6098 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
6099 }
6100
6101 /* Skip the parameter entries */
6102 while (parameters[i].type == FORMAT_PARAMETER)
6103 i++;
6104
6105 flags = parameters[i].flags;
6106 /* Find width */
6107 width = parameters[i].width;
6108 if (flags & FLAGS_WIDTH_PARAMETER)
6109 {
6110 /* Get width from parameter list */
6111 width = (int)parameters[width].data.number.as_signed;
6112 }
6113 /* Find base */
6114 base = parameters[i].base;
6115 if (flags & FLAGS_BASE_PARAMETER)
6116 {
6117 /* Get base from parameter list */
6118 base = (int)parameters[base].data.number.as_signed;
6119 }
6120
6121 switch (parameters[i].type)
6122 {
6123 case FORMAT_INT:
6124 {
6125 trio_uintmax_t number;
6126
6127 if (0 == base)
6128 base = BASE_DECIMAL;
6129
6130 if (!TrioReadNumber(data,
6131 &number,
6132 flags,
6133 width,
6134 base))
6135 return assignment;
6136
6137 if (!(flags & FLAGS_IGNORE))
6138 {
6139 assignment++;
6140
6141 pointer = parameters[i].data.pointer;
6142#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
6143 if (flags & FLAGS_SIZE_T)
6144 *(size_t *)pointer = (size_t)number;
6145 else
6146#endif
6147#if defined(QUALIFIER_PTRDIFF_T)
6148 if (flags & FLAGS_PTRDIFF_T)
6149 *(ptrdiff_t *)pointer = (ptrdiff_t)number;
6150 else
6151#endif
6152#if defined(QUALIFIER_INTMAX_T)
6153 if (flags & FLAGS_INTMAX_T)
6154 *(trio_intmax_t *)pointer = (trio_intmax_t)number;
6155 else
6156#endif
6157 if (flags & FLAGS_QUAD)
6158 *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)number;
6159 else if (flags & FLAGS_LONG)
6160 *(long int *)pointer = (long int)number;
6161 else if (flags & FLAGS_SHORT)
6162 *(short int *)pointer = (short int)number;
6163 else
6164 *(int *)pointer = (int)number;
6165 }
6166 }
6167 break; /* FORMAT_INT */
6168
6169 case FORMAT_STRING:
6170#if TRIO_WIDECHAR
6171 if (flags & FLAGS_WIDECHAR)
6172 {
6173 if (!TrioReadWideString(data,
6174 (flags & FLAGS_IGNORE)
6175 ? NULL
6176 : parameters[i].data.wstring,
6177 flags,
6178 width))
6179 return assignment;
6180 }
6181 else
6182#endif
6183 {
6184 if (!TrioReadString(data,
6185 (flags & FLAGS_IGNORE)
6186 ? NULL
6187 : parameters[i].data.string,
6188 flags,
6189 width))
6190 return assignment;
6191 }
6192 if (!(flags & FLAGS_IGNORE))
6193 assignment++;
6194 break; /* FORMAT_STRING */
6195
6196 case FORMAT_DOUBLE:
6197 {
6198 trio_pointer_t pointer;
6199
6200 if (flags & FLAGS_IGNORE)
6201 {
6202 pointer = NULL;
6203 }
6204 else
6205 {
6206 pointer = (flags & FLAGS_LONGDOUBLE)
6207 ? (trio_pointer_t)parameters[i].data.longdoublePointer
6208 : (trio_pointer_t)parameters[i].data.doublePointer;
6209 }
6210 if (!TrioReadDouble(data, pointer, flags, width))
6211 {
6212 return assignment;
6213 }
6214 if (!(flags & FLAGS_IGNORE))
6215 {
6216 assignment++;
6217 }
6218 break; /* FORMAT_DOUBLE */
6219 }
6220 case FORMAT_GROUP:
6221 {
6222 int characterclass[MAX_CHARACTER_CLASS + 1];
6223 int rc;
6224
6225 /* Skip over modifiers */
6226 while (format[index] != SPECIFIER_GROUP)
6227 {
6228 index++;
6229 }
6230 /* Skip over group specifier */
6231 index++;
6232
6233 memset(characterclass, 0, sizeof(characterclass));
6234 rc = TrioGetCharacterClass(format,
6235 &index,
6236 &flags,
6237 characterclass);
6238 if (rc < 0)
6239 return rc;
6240
6241 if (!TrioReadGroup(data,
6242 (flags & FLAGS_IGNORE)
6243 ? NULL
6244 : parameters[i].data.string,
6245 characterclass,
6246 flags,
6247 parameters[i].width))
6248 return assignment;
6249 if (!(flags & FLAGS_IGNORE))
6250 assignment++;
6251 }
6252 break; /* FORMAT_GROUP */
6253
6254 case FORMAT_COUNT:
6255 pointer = parameters[i].data.pointer;
6256 if (NULL != pointer)
6257 {
6258 int count = data->committed;
6259 if (ch != EOF)
6260 count--; /* a character is read, but is not consumed yet */
6261#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
6262 if (flags & FLAGS_SIZE_T)
6263 *(size_t *)pointer = (size_t)count;
6264 else
6265#endif
6266#if defined(QUALIFIER_PTRDIFF_T)
6267 if (flags & FLAGS_PTRDIFF_T)
6268 *(ptrdiff_t *)pointer = (ptrdiff_t)count;
6269 else
6270#endif
6271#if defined(QUALIFIER_INTMAX_T)
6272 if (flags & FLAGS_INTMAX_T)
6273 *(trio_intmax_t *)pointer = (trio_intmax_t)count;
6274 else
6275#endif
6276 if (flags & FLAGS_QUAD)
6277 {
6278 *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)count;
6279 }
6280 else if (flags & FLAGS_LONG)
6281 {
6282 *(long int *)pointer = (long int)count;
6283 }
6284 else if (flags & FLAGS_SHORT)
6285 {
6286 *(short int *)pointer = (short int)count;
6287 }
6288 else
6289 {
6290 *(int *)pointer = (int)count;
6291 }
6292 }
6293 break; /* FORMAT_COUNT */
6294
6295 case FORMAT_CHAR:
6296#if TRIO_WIDECHAR
6297 if (flags & FLAGS_WIDECHAR)
6298 {
6299 if (TrioReadWideChar(data,
6300 (flags & FLAGS_IGNORE)
6301 ? NULL
6302 : parameters[i].data.wstring,
6303 flags,
6304 (width == NO_WIDTH) ? 1 : width) == 0)
6305 return assignment;
6306 }
6307 else
6308#endif
6309 {
6310 if (TrioReadChar(data,
6311 (flags & FLAGS_IGNORE)
6312 ? NULL
6313 : parameters[i].data.string,
6314 flags,
6315 (width == NO_WIDTH) ? 1 : width) == 0)
6316 return assignment;
6317 }
6318 if (!(flags & FLAGS_IGNORE))
6319 assignment++;
6320 break; /* FORMAT_CHAR */
6321
6322 case FORMAT_POINTER:
6323 if (!TrioReadPointer(data,
6324 (flags & FLAGS_IGNORE)
6325 ? NULL
6326 : (trio_pointer_t *)parameters[i].data.pointer,
6327 flags))
6328 return assignment;
6329 if (!(flags & FLAGS_IGNORE))
6330 assignment++;
6331 break; /* FORMAT_POINTER */
6332
6333 case FORMAT_PARAMETER:
6334 break; /* FORMAT_PARAMETER */
6335
6336 default:
6337 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
6338 }
6339 ch = data->current;
6340 index = parameters[i].indexAfterSpecifier;
6341 i++;
6342 }
6343 else /* Not an % identifier */
6344 {
6345 if (isspace((int)format[index]))
6346 {
6347 /* Whitespaces may match any amount of whitespaces */
6348 ch = TrioSkipWhitespaces(data);
6349 }
6350 else if (ch == format[index])
6351 {
6352 data->InStream(data, &ch);
6353 }
6354 else
6355 return assignment;
6356
6357 index++;
6358 }
6359 }
6360 return assignment;
6361}
6362
6363/*************************************************************************
6364 * TrioScan
6365 */
6366TRIO_PRIVATE int
6367TrioScan
6368TRIO_ARGS6((source, sourceSize, InStream, format, arglist, argarray),
6369 trio_pointer_t source,
6370 size_t sourceSize,
6371 void (*InStream) TRIO_PROTO((trio_class_t *, int *)),
6372 TRIO_CONST char *format,
6373 va_list *arglist,
6374 trio_pointer_t *argarray)
6375{
6376 int status;
6377 trio_parameter_t parameters[MAX_PARAMETERS];
6378 trio_class_t data;
6379
6380 assert(VALID(InStream));
6381 assert(VALID(format));
6382
6383 memset(&data, 0, sizeof(data));
6384 data.InStream = InStream;
6385 data.location = (trio_pointer_t)source;
6386 data.max = sourceSize;
6387 data.error = 0;
6388
6389#if defined(USE_LOCALE)
6390 if (NULL == internalLocaleValues)
6391 {
6392 TrioSetLocale();
6393 }
6394#endif
6395
6396 status = TrioParse(TYPE_SCAN, format, parameters, arglist, argarray);
6397 if (status < 0)
6398 return status;
6399
6400 status = TrioScanProcess(&data, format, parameters);
6401 if (data.error != 0)
6402 {
6403 status = data.error;
6404 }
6405 return status;
6406}
6407
6408/*************************************************************************
6409 * TrioInStreamFile
6410 */
6411TRIO_PRIVATE void
6412TrioInStreamFile
6413TRIO_ARGS2((self, intPointer),
6414 trio_class_t *self,
6415 int *intPointer)
6416{
6417 FILE *file = (FILE *)self->location;
6418
6419 assert(VALID(self));
6420 assert(VALID(file));
6421
6422 self->current = fgetc(file);
6423 if (self->current == EOF)
6424 {
6425 self->error = (ferror(file))
6426 ? TRIO_ERROR_RETURN(TRIO_ERRNO, 0)
6427 : TRIO_ERROR_RETURN(TRIO_EOF, 0);
6428 }
6429 else
6430 {
6431 self->processed++;
6432 self->committed++;
6433 }
6434
6435 if (VALID(intPointer))
6436 {
6437 *intPointer = self->current;
6438 }
6439}
6440
6441/*************************************************************************
6442 * TrioInStreamFileDescriptor
6443 */
6444TRIO_PRIVATE void
6445TrioInStreamFileDescriptor
6446TRIO_ARGS2((self, intPointer),
6447 trio_class_t *self,
6448 int *intPointer)
6449{
6450 int fd = *((int *)self->location);
6451 int size;
6452 unsigned char input;
6453
6454 assert(VALID(self));
6455
6456 size = read(fd, &input, sizeof(char));
6457 if (size == -1)
6458 {
6459 self->error = TRIO_ERROR_RETURN(TRIO_ERRNO, 0);
6460 self->current = EOF;
6461 }
6462 else
6463 {
6464 self->current = (size == 0) ? EOF : input;
6465 }
6466 if (self->current != EOF)
6467 {
6468 self->committed++;
6469 self->processed++;
6470 }
6471
6472 if (VALID(intPointer))
6473 {
6474 *intPointer = self->current;
6475 }
6476}
6477
6478/*************************************************************************
6479 * TrioInStreamCustom
6480 */
6481TRIO_PRIVATE void
6482TrioInStreamCustom
6483TRIO_ARGS2((self, intPointer),
6484 trio_class_t *self,
6485 int *intPointer)
6486{
6487 trio_custom_t *data;
6488
6489 assert(VALID(self));
6490 assert(VALID(self->location));
6491
6492 data = (trio_custom_t *)self->location;
6493
6494 self->current = (data->stream.in == NULL)
6495 ? NIL
6496 : (data->stream.in)(data->closure);
6497
6498 if (self->current == NIL)
6499 {
6500 self->current = EOF;
6501 }
6502 else
6503 {
6504 self->processed++;
6505 self->committed++;
6506 }
6507
6508 if (VALID(intPointer))
6509 {
6510 *intPointer = self->current;
6511 }
6512}
6513
6514/*************************************************************************
6515 * TrioInStreamString
6516 */
6517TRIO_PRIVATE void
6518TrioInStreamString
6519TRIO_ARGS2((self, intPointer),
6520 trio_class_t *self,
6521 int *intPointer)
6522{
6523 unsigned char **buffer;
6524
6525 assert(VALID(self));
6526 assert(VALID(self->location));
6527
6528 buffer = (unsigned char **)self->location;
6529 self->current = (*buffer)[0];
6530 if (self->current == NIL)
6531 {
6532 self->current = EOF;
6533 }
6534 else
6535 {
6536 (*buffer)++;
6537 self->processed++;
6538 self->committed++;
6539 }
6540
6541 if (VALID(intPointer))
6542 {
6543 *intPointer = self->current;
6544 }
6545}
6546
6547/*************************************************************************
6548 *
6549 * Formatted scanning functions
6550 *
6551 ************************************************************************/
6552
6553#if defined(TRIO_DOCUMENTATION)
6554# include "doc/doc_scanf.h"
6555#endif
6556/** @addtogroup Scanf
6557 @{
6558*/
6559
6560/*************************************************************************
6561 * scanf
6562 */
6563
6564/**
6565 Scan characters from standard input stream.
6566
6567 @param format Formatting string.
6568 @param ... Arguments.
6569 @return Number of scanned characters.
6570 */
6571TRIO_PUBLIC int
6572trio_scanf
6573TRIO_VARGS2((format, va_alist),
6574 TRIO_CONST char *format,
6575 TRIO_VA_DECL)
6576{
6577 int status;
6578 va_list args;
6579
6580 assert(VALID(format));
6581
6582 TRIO_VA_START(args, format);
6583 status = TrioScan((trio_pointer_t)stdin, 0,
6584 TrioInStreamFile,
6585 format, &args, NULL);
6586 TRIO_VA_END(args);
6587 return status;
6588}
6589
6590TRIO_PUBLIC int
6591trio_vscanf
6592TRIO_ARGS2((format, args),
6593 TRIO_CONST char *format,
6594 va_list args)
6595{
6596 assert(VALID(format));
6597
6598 return TrioScan((trio_pointer_t)stdin, 0,
6599 TrioInStreamFile,
6600 format, &args, NULL);
6601}
6602
6603TRIO_PUBLIC int
6604trio_scanfv
6605TRIO_ARGS2((format, args),
6606 TRIO_CONST char *format,
6607 trio_pointer_t *args)
6608{
6609 assert(VALID(format));
6610
6611 return TrioScan((trio_pointer_t)stdin, 0,
6612 TrioInStreamFile,
6613 format, NULL, args);
6614}
6615
6616/*************************************************************************
6617 * fscanf
6618 */
6619TRIO_PUBLIC int
6620trio_fscanf
6621TRIO_VARGS3((file, format, va_alist),
6622 FILE *file,
6623 TRIO_CONST char *format,
6624 TRIO_VA_DECL)
6625{
6626 int status;
6627 va_list args;
6628
6629 assert(VALID(file));
6630 assert(VALID(format));
6631
6632 TRIO_VA_START(args, format);
6633 status = TrioScan((trio_pointer_t)file, 0,
6634 TrioInStreamFile,
6635 format, &args, NULL);
6636 TRIO_VA_END(args);
6637 return status;
6638}
6639
6640TRIO_PUBLIC int
6641trio_vfscanf
6642TRIO_ARGS3((file, format, args),
6643 FILE *file,
6644 TRIO_CONST char *format,
6645 va_list args)
6646{
6647 assert(VALID(file));
6648 assert(VALID(format));
6649
6650 return TrioScan((trio_pointer_t)file, 0,
6651 TrioInStreamFile,
6652 format, &args, NULL);
6653}
6654
6655TRIO_PUBLIC int
6656trio_fscanfv
6657TRIO_ARGS3((file, format, args),
6658 FILE *file,
6659 TRIO_CONST char *format,
6660 trio_pointer_t *args)
6661{
6662 assert(VALID(file));
6663 assert(VALID(format));
6664
6665 return TrioScan((trio_pointer_t)file, 0,
6666 TrioInStreamFile,
6667 format, NULL, args);
6668}
6669
6670/*************************************************************************
6671 * dscanf
6672 */
6673TRIO_PUBLIC int
6674trio_dscanf
6675TRIO_VARGS3((fd, format, va_alist),
6676 int fd,
6677 TRIO_CONST char *format,
6678 TRIO_VA_DECL)
6679{
6680 int status;
6681 va_list args;
6682
6683 assert(VALID(format));
6684
6685 TRIO_VA_START(args, format);
6686 status = TrioScan((trio_pointer_t)&fd, 0,
6687 TrioInStreamFileDescriptor,
6688 format, &args, NULL);
6689 TRIO_VA_END(args);
6690 return status;
6691}
6692
6693TRIO_PUBLIC int
6694trio_vdscanf
6695TRIO_ARGS3((fd, format, args),
6696 int fd,
6697 TRIO_CONST char *format,
6698 va_list args)
6699{
6700 assert(VALID(format));
6701
6702 return TrioScan((trio_pointer_t)&fd, 0,
6703 TrioInStreamFileDescriptor,
6704 format, &args, NULL);
6705}
6706
6707TRIO_PUBLIC int
6708trio_dscanfv
6709TRIO_ARGS3((fd, format, args),
6710 int fd,
6711 TRIO_CONST char *format,
6712 trio_pointer_t *args)
6713{
6714 assert(VALID(format));
6715
6716 return TrioScan((trio_pointer_t)&fd, 0,
6717 TrioInStreamFileDescriptor,
6718 format, NULL, args);
6719}
6720
6721/*************************************************************************
6722 * cscanf
6723 */
6724TRIO_PUBLIC int
6725trio_cscanf
6726TRIO_VARGS4((stream, closure, format, va_alist),
6727 trio_instream_t stream,
6728 trio_pointer_t closure,
6729 TRIO_CONST char *format,
6730 TRIO_VA_DECL)
6731{
6732 int status;
6733 va_list args;
6734 trio_custom_t data;
6735
6736 assert(VALID(stream));
6737 assert(VALID(format));
6738
6739 TRIO_VA_START(args, format);
6740 data.stream.in = stream;
6741 data.closure = closure;
6742 status = TrioScan(&data, 0, TrioInStreamCustom, format, &args, NULL);
6743 TRIO_VA_END(args);
6744 return status;
6745}
6746
6747TRIO_PUBLIC int
6748trio_vcscanf
6749TRIO_ARGS4((stream, closure, format, args),
6750 trio_instream_t stream,
6751 trio_pointer_t closure,
6752 TRIO_CONST char *format,
6753 va_list args)
6754{
6755 trio_custom_t data;
6756
6757 assert(VALID(stream));
6758 assert(VALID(format));
6759
6760 data.stream.in = stream;
6761 data.closure = closure;
6762 return TrioScan(&data, 0, TrioInStreamCustom, format, &args, NULL);
6763}
6764
6765TRIO_PUBLIC int
6766trio_cscanfv
6767TRIO_ARGS4((stream, closure, format, args),
6768 trio_instream_t stream,
6769 trio_pointer_t closure,
6770 TRIO_CONST char *format,
6771 trio_pointer_t *args)
6772{
6773 trio_custom_t data;
6774
6775 assert(VALID(stream));
6776 assert(VALID(format));
6777
6778 data.stream.in = stream;
6779 data.closure = closure;
6780 return TrioScan(&data, 0, TrioInStreamCustom, format, NULL, args);
6781}
6782
6783/*************************************************************************
6784 * sscanf
6785 */
6786TRIO_PUBLIC int
6787trio_sscanf
6788TRIO_VARGS3((buffer, format, va_alist),
6789 TRIO_CONST char *buffer,
6790 TRIO_CONST char *format,
6791 TRIO_VA_DECL)
6792{
6793 int status;
6794 va_list args;
6795
6796 assert(VALID(buffer));
6797 assert(VALID(format));
6798
6799 TRIO_VA_START(args, format);
6800 status = TrioScan((trio_pointer_t)&buffer, 0,
6801 TrioInStreamString,
6802 format, &args, NULL);
6803 TRIO_VA_END(args);
6804 return status;
6805}
6806
6807TRIO_PUBLIC int
6808trio_vsscanf
6809TRIO_ARGS3((buffer, format, args),
6810 TRIO_CONST char *buffer,
6811 TRIO_CONST char *format,
6812 va_list args)
6813{
6814 assert(VALID(buffer));
6815 assert(VALID(format));
6816
6817 return TrioScan((trio_pointer_t)&buffer, 0,
6818 TrioInStreamString,
6819 format, &args, NULL);
6820}
6821
6822TRIO_PUBLIC int
6823trio_sscanfv
6824TRIO_ARGS3((buffer, format, args),
6825 TRIO_CONST char *buffer,
6826 TRIO_CONST char *format,
6827 trio_pointer_t *args)
6828{
6829 assert(VALID(buffer));
6830 assert(VALID(format));
6831
6832 return TrioScan((trio_pointer_t)&buffer, 0,
6833 TrioInStreamString,
6834 format, NULL, args);
6835}
6836
6837/** @} End of Scanf documentation module */
6838
6839/*************************************************************************
6840 * trio_strerror
6841 */
6842TRIO_PUBLIC TRIO_CONST char *
6843trio_strerror
6844TRIO_ARGS1((errorcode),
6845 int errorcode)
6846{
6847 /* Textual versions of the error codes */
6848 switch (TRIO_ERROR_CODE(errorcode))
6849 {
6850 case TRIO_EOF:
6851 return "End of file";
6852 case TRIO_EINVAL:
6853 return "Invalid argument";
6854 case TRIO_ETOOMANY:
6855 return "Too many arguments";
6856 case TRIO_EDBLREF:
6857 return "Double reference";
6858 case TRIO_EGAP:
6859 return "Reference gap";
6860 case TRIO_ENOMEM:
6861 return "Out of memory";
6862 case TRIO_ERANGE:
6863 return "Invalid range";
6864 case TRIO_ECUSTOM:
6865 return "Custom error";
6866 default:
6867 return "Unknown";
6868 }
6869}
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