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[LIBXML2]
[reactos.git] / reactos / lib / 3rdparty / libxml2 / trio.c
1 /*************************************************************************
2 *
3 * $Id$
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 #if defined( HAVE_ERRNO_H ) || defined( __VMS )
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
129 #ifndef VA_LIST_IS_ARRAY
130 #define TRIO_VA_LIST_PTR va_list *
131 #define TRIO_VA_LIST_ADDR(l) (&(l))
132 #define TRIO_VA_LIST_DEREF(l) (*(l))
133 #else
134 #define TRIO_VA_LIST_PTR va_list
135 #define TRIO_VA_LIST_ADDR(l) (l)
136 #define TRIO_VA_LIST_DEREF(l) (l)
137 #endif
138
139 typedef unsigned long trio_flags_t;
140
141
142 /*************************************************************************
143 * Platform specific definitions
144 */
145 #if defined(TRIO_PLATFORM_UNIX) || defined(TRIO_PLATFORM_OS400)
146 # include <unistd.h>
147 # include <signal.h>
148 # include <locale.h>
149 # define USE_LOCALE
150 #endif /* TRIO_PLATFORM_UNIX */
151 #if defined(TRIO_PLATFORM_VMS)
152 # include <unistd.h>
153 #endif
154 #if defined(TRIO_PLATFORM_WIN32)
155 # if defined(_WIN32_WCE)
156 # include <wincecompat.h>
157 # else
158 # include <io.h>
159 # define read _read
160 # define write _write
161 # endif
162 #endif /* TRIO_PLATFORM_WIN32 */
163
164 #if TRIO_WIDECHAR
165 # if defined(TRIO_COMPILER_SUPPORTS_ISO94)
166 # include <wchar.h>
167 # include <wctype.h>
168 typedef wchar_t trio_wchar_t;
169 typedef wint_t trio_wint_t;
170 # else
171 typedef char trio_wchar_t;
172 typedef int trio_wint_t;
173 # define WCONST(x) L ## x
174 # define WEOF EOF
175 # define iswalnum(x) isalnum(x)
176 # define iswalpha(x) isalpha(x)
177 # define iswblank(x) isblank(x)
178 # define iswcntrl(x) iscntrl(x)
179 # define iswdigit(x) isdigit(x)
180 # define iswgraph(x) isgraph(x)
181 # define iswlower(x) islower(x)
182 # define iswprint(x) isprint(x)
183 # define iswpunct(x) ispunct(x)
184 # define iswspace(x) isspace(x)
185 # define iswupper(x) isupper(x)
186 # define iswxdigit(x) isxdigit(x)
187 # endif
188 #endif
189
190
191 /*************************************************************************
192 * Compiler dependent definitions
193 */
194
195 /* Support for long long */
196 #ifndef __cplusplus
197 # if !defined(USE_LONGLONG)
198 # if defined(TRIO_COMPILER_GCC) && !defined(__STRICT_ANSI__)
199 # define USE_LONGLONG
200 # elif defined(TRIO_COMPILER_SUNPRO)
201 # define USE_LONGLONG
202 # elif defined(_LONG_LONG) || defined(_LONGLONG)
203 # define USE_LONGLONG
204 # endif
205 # endif
206 #endif
207
208 /* The extra long numbers */
209 #if defined(USE_LONGLONG)
210 typedef signed long long int trio_longlong_t;
211 typedef unsigned long long int trio_ulonglong_t;
212 #elif defined(TRIO_COMPILER_SUPPORTS_MSVC_INT)
213 typedef signed __int64 trio_longlong_t;
214 typedef unsigned __int64 trio_ulonglong_t;
215 #else
216 typedef TRIO_SIGNED long int trio_longlong_t;
217 typedef unsigned long int trio_ulonglong_t;
218 #endif
219
220 /* Maximal and fixed integer types */
221 #if defined(TRIO_COMPILER_SUPPORTS_C99) && !defined( __VMS )
222 # include <stdint.h>
223 typedef intmax_t trio_intmax_t;
224 typedef uintmax_t trio_uintmax_t;
225 typedef int8_t trio_int8_t;
226 typedef int16_t trio_int16_t;
227 typedef int32_t trio_int32_t;
228 typedef int64_t trio_int64_t;
229 #elif defined(TRIO_COMPILER_SUPPORTS_UNIX98) || defined( __VMS )
230 # include <inttypes.h>
231 #ifdef __VMS
232 typedef long long int intmax_t;
233 typedef unsigned long long int uintmax_t;
234 #endif
235 typedef intmax_t trio_intmax_t;
236 typedef uintmax_t trio_uintmax_t;
237 typedef int8_t trio_int8_t;
238 typedef int16_t trio_int16_t;
239 typedef int32_t trio_int32_t;
240 typedef int64_t trio_int64_t;
241 #elif defined(TRIO_COMPILER_SUPPORTS_MSVC_INT)
242 typedef trio_longlong_t trio_intmax_t;
243 typedef trio_ulonglong_t trio_uintmax_t;
244 typedef __int8 trio_int8_t;
245 typedef __int16 trio_int16_t;
246 typedef __int32 trio_int32_t;
247 typedef __int64 trio_int64_t;
248 #else
249 typedef trio_longlong_t trio_intmax_t;
250 typedef trio_ulonglong_t trio_uintmax_t;
251 # if defined(TRIO_INT8_T)
252 typedef TRIO_INT8_T trio_int8_t;
253 # else
254 typedef TRIO_SIGNED char trio_int8_t;
255 # endif
256 # if defined(TRIO_INT16_T)
257 typedef TRIO_INT16_T trio_int16_t;
258 # else
259 typedef TRIO_SIGNED short trio_int16_t;
260 # endif
261 # if defined(TRIO_INT32_T)
262 typedef TRIO_INT32_T trio_int32_t;
263 # else
264 typedef TRIO_SIGNED int trio_int32_t;
265 # endif
266 # if defined(TRIO_INT64_T)
267 typedef TRIO_INT64_T trio_int64_t;
268 # else
269 typedef trio_longlong_t trio_int64_t;
270 # endif
271 #endif
272
273 #if (!(defined(TRIO_COMPILER_SUPPORTS_C99) \
274 || defined(TRIO_COMPILER_SUPPORTS_UNIX01))) \
275 && !defined(_WIN32_WCE)
276 # define floorl(x) floor((double)(x))
277 # define fmodl(x,y) fmod((double)(x),(double)(y))
278 # define powl(x,y) pow((double)(x),(double)(y))
279 #endif
280
281 #define TRIO_FABS(x) (((x) < 0.0) ? -(x) : (x))
282
283 /*************************************************************************
284 * Internal Definitions
285 */
286
287 #ifndef DECIMAL_DIG
288 # define DECIMAL_DIG DBL_DIG
289 #endif
290
291 /* Long double sizes */
292 #ifdef LDBL_DIG
293 # define MAX_MANTISSA_DIGITS LDBL_DIG
294 # define MAX_EXPONENT_DIGITS 4
295 # define MAX_DOUBLE_DIGITS LDBL_MAX_10_EXP
296 #else
297 # define MAX_MANTISSA_DIGITS DECIMAL_DIG
298 # define MAX_EXPONENT_DIGITS 3
299 # define MAX_DOUBLE_DIGITS DBL_MAX_10_EXP
300 #endif
301
302 #if defined(TRIO_COMPILER_ANCIENT) || !defined(LDBL_DIG)
303 # undef LDBL_DIG
304 # undef LDBL_MANT_DIG
305 # undef LDBL_EPSILON
306 # define LDBL_DIG DBL_DIG
307 # define LDBL_MANT_DIG DBL_MANT_DIG
308 # define LDBL_EPSILON DBL_EPSILON
309 #endif
310
311 /* The maximal number of digits is for base 2 */
312 #define MAX_CHARS_IN(x) (sizeof(x) * CHAR_BIT)
313 /* The width of a pointer. The number of bits in a hex digit is 4 */
314 #define POINTER_WIDTH ((sizeof("0x") - 1) + sizeof(trio_pointer_t) * CHAR_BIT / 4)
315
316 /* Infinite and Not-A-Number for floating-point */
317 #define INFINITE_LOWER "inf"
318 #define INFINITE_UPPER "INF"
319 #define LONG_INFINITE_LOWER "infinite"
320 #define LONG_INFINITE_UPPER "INFINITE"
321 #define NAN_LOWER "nan"
322 #define NAN_UPPER "NAN"
323
324 #if !defined(HAVE_ISASCII) && !defined(isascii)
325 #ifndef __VMS
326 # define isascii(x) ((unsigned int)(x) < 128)
327 #endif
328 #endif
329
330 /* Various constants */
331 enum {
332 TYPE_PRINT = 1,
333 TYPE_SCAN = 2,
334
335 /* Flags. FLAGS_LAST must be less than ULONG_MAX */
336 FLAGS_NEW = 0,
337 FLAGS_STICKY = 1,
338 FLAGS_SPACE = 2 * FLAGS_STICKY,
339 FLAGS_SHOWSIGN = 2 * FLAGS_SPACE,
340 FLAGS_LEFTADJUST = 2 * FLAGS_SHOWSIGN,
341 FLAGS_ALTERNATIVE = 2 * FLAGS_LEFTADJUST,
342 FLAGS_SHORT = 2 * FLAGS_ALTERNATIVE,
343 FLAGS_SHORTSHORT = 2 * FLAGS_SHORT,
344 FLAGS_LONG = 2 * FLAGS_SHORTSHORT,
345 FLAGS_QUAD = 2 * FLAGS_LONG,
346 FLAGS_LONGDOUBLE = 2 * FLAGS_QUAD,
347 FLAGS_SIZE_T = 2 * FLAGS_LONGDOUBLE,
348 FLAGS_PTRDIFF_T = 2 * FLAGS_SIZE_T,
349 FLAGS_INTMAX_T = 2 * FLAGS_PTRDIFF_T,
350 FLAGS_NILPADDING = 2 * FLAGS_INTMAX_T,
351 FLAGS_UNSIGNED = 2 * FLAGS_NILPADDING,
352 FLAGS_UPPER = 2 * FLAGS_UNSIGNED,
353 FLAGS_WIDTH = 2 * FLAGS_UPPER,
354 FLAGS_WIDTH_PARAMETER = 2 * FLAGS_WIDTH,
355 FLAGS_PRECISION = 2 * FLAGS_WIDTH_PARAMETER,
356 FLAGS_PRECISION_PARAMETER = 2 * FLAGS_PRECISION,
357 FLAGS_BASE = 2 * FLAGS_PRECISION_PARAMETER,
358 FLAGS_BASE_PARAMETER = 2 * FLAGS_BASE,
359 FLAGS_FLOAT_E = 2 * FLAGS_BASE_PARAMETER,
360 FLAGS_FLOAT_G = 2 * FLAGS_FLOAT_E,
361 FLAGS_QUOTE = 2 * FLAGS_FLOAT_G,
362 FLAGS_WIDECHAR = 2 * FLAGS_QUOTE,
363 FLAGS_ALLOC = 2 * FLAGS_WIDECHAR,
364 FLAGS_IGNORE = 2 * FLAGS_ALLOC,
365 FLAGS_IGNORE_PARAMETER = 2 * FLAGS_IGNORE,
366 FLAGS_VARSIZE_PARAMETER = 2 * FLAGS_IGNORE_PARAMETER,
367 FLAGS_FIXED_SIZE = 2 * FLAGS_VARSIZE_PARAMETER,
368 FLAGS_LAST = FLAGS_FIXED_SIZE,
369 /* Reused flags */
370 FLAGS_EXCLUDE = FLAGS_SHORT,
371 FLAGS_USER_DEFINED = FLAGS_IGNORE,
372 FLAGS_ROUNDING = FLAGS_INTMAX_T,
373 /* Compounded flags */
374 FLAGS_ALL_VARSIZES = FLAGS_LONG | FLAGS_QUAD | FLAGS_INTMAX_T | FLAGS_PTRDIFF_T | FLAGS_SIZE_T,
375 FLAGS_ALL_SIZES = FLAGS_ALL_VARSIZES | FLAGS_SHORTSHORT | FLAGS_SHORT,
376
377 NO_POSITION = -1,
378 NO_WIDTH = 0,
379 NO_PRECISION = -1,
380 NO_SIZE = -1,
381
382 /* Do not change these */
383 NO_BASE = -1,
384 MIN_BASE = 2,
385 MAX_BASE = 36,
386 BASE_BINARY = 2,
387 BASE_OCTAL = 8,
388 BASE_DECIMAL = 10,
389 BASE_HEX = 16,
390
391 /* Maximal number of allowed parameters */
392 MAX_PARAMETERS = 64,
393 /* Maximal number of characters in class */
394 MAX_CHARACTER_CLASS = UCHAR_MAX + 1,
395
396 /* Maximal string lengths for user-defined specifiers */
397 MAX_USER_NAME = 64,
398 MAX_USER_DATA = 256,
399
400 /* Maximal length of locale separator strings */
401 MAX_LOCALE_SEPARATOR_LENGTH = MB_LEN_MAX,
402 /* Maximal number of integers in grouping */
403 MAX_LOCALE_GROUPS = 64,
404
405 /* Initial size of asprintf buffer */
406 DYNAMIC_START_SIZE = 32
407 };
408
409 #define NO_GROUPING ((int)CHAR_MAX)
410
411 /* Fundamental formatting parameter types */
412 #define FORMAT_UNKNOWN 0
413 #define FORMAT_INT 1
414 #define FORMAT_DOUBLE 2
415 #define FORMAT_CHAR 3
416 #define FORMAT_STRING 4
417 #define FORMAT_POINTER 5
418 #define FORMAT_COUNT 6
419 #define FORMAT_PARAMETER 7
420 #define FORMAT_GROUP 8
421 #if TRIO_GNU
422 # define FORMAT_ERRNO 9
423 #endif
424 #if TRIO_EXTENSION
425 # define FORMAT_USER_DEFINED 10
426 #endif
427
428 /* Character constants */
429 #define CHAR_IDENTIFIER '%'
430 #define CHAR_BACKSLASH '\\'
431 #define CHAR_QUOTE '\"'
432 #define CHAR_ADJUST ' '
433
434 /* Character class expressions */
435 #define CLASS_ALNUM "[:alnum:]"
436 #define CLASS_ALPHA "[:alpha:]"
437 #define CLASS_BLANK "[:blank:]"
438 #define CLASS_CNTRL "[:cntrl:]"
439 #define CLASS_DIGIT "[:digit:]"
440 #define CLASS_GRAPH "[:graph:]"
441 #define CLASS_LOWER "[:lower:]"
442 #define CLASS_PRINT "[:print:]"
443 #define CLASS_PUNCT "[:punct:]"
444 #define CLASS_SPACE "[:space:]"
445 #define CLASS_UPPER "[:upper:]"
446 #define CLASS_XDIGIT "[:xdigit:]"
447
448 /*
449 * SPECIFIERS:
450 *
451 *
452 * a Hex-float
453 * A Hex-float
454 * c Character
455 * C Widechar character (wint_t)
456 * d Decimal
457 * e Float
458 * E Float
459 * F Float
460 * F Float
461 * g Float
462 * G Float
463 * i Integer
464 * m Error message
465 * n Count
466 * o Octal
467 * p Pointer
468 * s String
469 * S Widechar string (wchar_t *)
470 * u Unsigned
471 * x Hex
472 * X Hex
473 * [] Group
474 * <> User-defined
475 *
476 * Reserved:
477 *
478 * D Binary Coded Decimal %D(length,precision) (OS/390)
479 */
480 #define SPECIFIER_CHAR 'c'
481 #define SPECIFIER_STRING 's'
482 #define SPECIFIER_DECIMAL 'd'
483 #define SPECIFIER_INTEGER 'i'
484 #define SPECIFIER_UNSIGNED 'u'
485 #define SPECIFIER_OCTAL 'o'
486 #define SPECIFIER_HEX 'x'
487 #define SPECIFIER_HEX_UPPER 'X'
488 #define SPECIFIER_FLOAT_E 'e'
489 #define SPECIFIER_FLOAT_E_UPPER 'E'
490 #define SPECIFIER_FLOAT_F 'f'
491 #define SPECIFIER_FLOAT_F_UPPER 'F'
492 #define SPECIFIER_FLOAT_G 'g'
493 #define SPECIFIER_FLOAT_G_UPPER 'G'
494 #define SPECIFIER_POINTER 'p'
495 #define SPECIFIER_GROUP '['
496 #define SPECIFIER_UNGROUP ']'
497 #define SPECIFIER_COUNT 'n'
498 #if TRIO_UNIX98
499 # define SPECIFIER_CHAR_UPPER 'C'
500 # define SPECIFIER_STRING_UPPER 'S'
501 #endif
502 #if TRIO_C99
503 # define SPECIFIER_HEXFLOAT 'a'
504 # define SPECIFIER_HEXFLOAT_UPPER 'A'
505 #endif
506 #if TRIO_GNU
507 # define SPECIFIER_ERRNO 'm'
508 #endif
509 #if TRIO_EXTENSION
510 # define SPECIFIER_BINARY 'b'
511 # define SPECIFIER_BINARY_UPPER 'B'
512 # define SPECIFIER_USER_DEFINED_BEGIN '<'
513 # define SPECIFIER_USER_DEFINED_END '>'
514 # define SPECIFIER_USER_DEFINED_SEPARATOR ':'
515 #endif
516
517 /*
518 * QUALIFIERS:
519 *
520 *
521 * Numbers = d,i,o,u,x,X
522 * Float = a,A,e,E,f,F,g,G
523 * String = s
524 * Char = c
525 *
526 *
527 * 9$ Position
528 * Use the 9th parameter. 9 can be any number between 1 and
529 * the maximal argument
530 *
531 * 9 Width
532 * Set width to 9. 9 can be any number, but must not be postfixed
533 * by '$'
534 *
535 * h Short
536 * Numbers:
537 * (unsigned) short int
538 *
539 * hh Short short
540 * Numbers:
541 * (unsigned) char
542 *
543 * l Long
544 * Numbers:
545 * (unsigned) long int
546 * String:
547 * as the S specifier
548 * Char:
549 * as the C specifier
550 *
551 * ll Long Long
552 * Numbers:
553 * (unsigned) long long int
554 *
555 * L Long Double
556 * Float
557 * long double
558 *
559 * # Alternative
560 * Float:
561 * Decimal-point is always present
562 * String:
563 * non-printable characters are handled as \number
564 *
565 * Spacing
566 *
567 * + Sign
568 *
569 * - Alignment
570 *
571 * . Precision
572 *
573 * * Parameter
574 * print: use parameter
575 * scan: no parameter (ignore)
576 *
577 * q Quad
578 *
579 * Z size_t
580 *
581 * w Widechar
582 *
583 * ' Thousands/quote
584 * Numbers:
585 * Integer part grouped in thousands
586 * Binary numbers:
587 * Number grouped in nibbles (4 bits)
588 * String:
589 * Quoted string
590 *
591 * j intmax_t
592 * t prtdiff_t
593 * z size_t
594 *
595 * ! Sticky
596 * @ Parameter (for both print and scan)
597 *
598 * I n-bit Integer
599 * Numbers:
600 * The following options exists
601 * I8 = 8-bit integer
602 * I16 = 16-bit integer
603 * I32 = 32-bit integer
604 * I64 = 64-bit integer
605 */
606 #define QUALIFIER_POSITION '$'
607 #define QUALIFIER_SHORT 'h'
608 #define QUALIFIER_LONG 'l'
609 #define QUALIFIER_LONG_UPPER 'L'
610 #define QUALIFIER_ALTERNATIVE '#'
611 #define QUALIFIER_SPACE ' '
612 #define QUALIFIER_PLUS '+'
613 #define QUALIFIER_MINUS '-'
614 #define QUALIFIER_DOT '.'
615 #define QUALIFIER_STAR '*'
616 #define QUALIFIER_CIRCUMFLEX '^' /* For scanlists */
617 #if TRIO_C99
618 # define QUALIFIER_SIZE_T 'z'
619 # define QUALIFIER_PTRDIFF_T 't'
620 # define QUALIFIER_INTMAX_T 'j'
621 #endif
622 #if TRIO_BSD || TRIO_GNU
623 # define QUALIFIER_QUAD 'q'
624 #endif
625 #if TRIO_GNU
626 # define QUALIFIER_SIZE_T_UPPER 'Z'
627 #endif
628 #if TRIO_MISC
629 # define QUALIFIER_WIDECHAR 'w'
630 #endif
631 #if TRIO_MICROSOFT
632 # define QUALIFIER_FIXED_SIZE 'I'
633 #endif
634 #if TRIO_EXTENSION
635 # define QUALIFIER_QUOTE '\''
636 # define QUALIFIER_STICKY '!'
637 # define QUALIFIER_VARSIZE '&' /* This should remain undocumented */
638 # define QUALIFIER_PARAM '@' /* Experimental */
639 # define QUALIFIER_COLON ':' /* For scanlists */
640 # define QUALIFIER_EQUAL '=' /* For scanlists */
641 # define QUALIFIER_ROUNDING_UPPER 'R'
642 #endif
643
644
645 /*************************************************************************
646 *
647 * Internal Structures
648 *
649 *************************************************************************/
650
651 /* Parameters */
652 typedef struct {
653 /* An indication of which entry in the data union is used */
654 int type;
655 /* The flags */
656 trio_flags_t flags;
657 /* The width qualifier */
658 int width;
659 /* The precision qualifier */
660 int precision;
661 /* The base qualifier */
662 int base;
663 /* The size for the variable size qualifier */
664 int varsize;
665 /* The marker of the end of the specifier */
666 int indexAfterSpecifier;
667 /* The data from the argument list */
668 union {
669 char *string;
670 #if TRIO_WIDECHAR
671 trio_wchar_t *wstring;
672 #endif
673 trio_pointer_t pointer;
674 union {
675 trio_intmax_t as_signed;
676 trio_uintmax_t as_unsigned;
677 } number;
678 double doubleNumber;
679 double *doublePointer;
680 trio_long_double_t longdoubleNumber;
681 trio_long_double_t *longdoublePointer;
682 int errorNumber;
683 } data;
684 /* For the user-defined specifier */
685 char user_name[MAX_USER_NAME];
686 char user_data[MAX_USER_DATA];
687 } trio_parameter_t;
688
689 /* Container for customized functions */
690 typedef struct {
691 union {
692 trio_outstream_t out;
693 trio_instream_t in;
694 } stream;
695 trio_pointer_t closure;
696 } trio_custom_t;
697
698 /* General trio "class" */
699 typedef struct _trio_class_t {
700 /*
701 * The function to write characters to a stream.
702 */
703 void (*OutStream) TRIO_PROTO((struct _trio_class_t *, int));
704 /*
705 * The function to read characters from a stream.
706 */
707 void (*InStream) TRIO_PROTO((struct _trio_class_t *, int *));
708 /*
709 * The current location in the stream.
710 */
711 trio_pointer_t location;
712 /*
713 * The character currently being processed.
714 */
715 int current;
716 /*
717 * The number of characters that would have been written/read
718 * if there had been sufficient space.
719 */
720 int processed;
721 /*
722 * The number of characters that are actually written/read.
723 * Processed and committed will only differ for the *nprintf
724 * and *nscanf functions.
725 */
726 int committed;
727 /*
728 * The upper limit of characters that may be written/read.
729 */
730 int max;
731 /*
732 * The last output error that was detected.
733 */
734 int error;
735 } trio_class_t;
736
737 /* References (for user-defined callbacks) */
738 typedef struct _trio_reference_t {
739 trio_class_t *data;
740 trio_parameter_t *parameter;
741 } trio_reference_t;
742
743 /* Registered entries (for user-defined callbacks) */
744 typedef struct _trio_userdef_t {
745 struct _trio_userdef_t *next;
746 trio_callback_t callback;
747 char *name;
748 } trio_userdef_t;
749
750 /*************************************************************************
751 *
752 * Internal Variables
753 *
754 *************************************************************************/
755
756 static TRIO_CONST char rcsid[] = "@(#)$Id$";
757
758 /*
759 * Need this to workaround a parser bug in HP C/iX compiler that fails
760 * to resolves macro definitions that includes type 'long double',
761 * e.g: va_arg(arg_ptr, long double)
762 */
763 #if defined(TRIO_PLATFORM_MPEIX)
764 static TRIO_CONST trio_long_double_t ___dummy_long_double = 0;
765 #endif
766
767 static TRIO_CONST char internalNullString[] = "(nil)";
768
769 #if defined(USE_LOCALE)
770 static struct lconv *internalLocaleValues = NULL;
771 #endif
772
773 /*
774 * UNIX98 says "in a locale where the radix character is not defined,
775 * the radix character defaults to a period (.)"
776 */
777 static int internalDecimalPointLength = 1;
778 static int internalThousandSeparatorLength = 1;
779 static char internalDecimalPoint = '.';
780 static char internalDecimalPointString[MAX_LOCALE_SEPARATOR_LENGTH + 1] = ".";
781 static char internalThousandSeparator[MAX_LOCALE_SEPARATOR_LENGTH + 1] = ",";
782 static char internalGrouping[MAX_LOCALE_GROUPS] = { (char)NO_GROUPING };
783
784 static TRIO_CONST char internalDigitsLower[] = "0123456789abcdefghijklmnopqrstuvwxyz";
785 static TRIO_CONST char internalDigitsUpper[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
786 static BOOLEAN_T internalDigitsUnconverted = TRUE;
787 static int internalDigitArray[128];
788 #if TRIO_EXTENSION
789 static BOOLEAN_T internalCollationUnconverted = TRUE;
790 static char internalCollationArray[MAX_CHARACTER_CLASS][MAX_CHARACTER_CLASS];
791 #endif
792
793 #if TRIO_EXTENSION
794 static TRIO_VOLATILE trio_callback_t internalEnterCriticalRegion = NULL;
795 static TRIO_VOLATILE trio_callback_t internalLeaveCriticalRegion = NULL;
796 static trio_userdef_t *internalUserDef = NULL;
797 #endif
798
799
800 /*************************************************************************
801 *
802 * Internal Functions
803 *
804 ************************************************************************/
805
806 #if defined(TRIO_MINIMAL)
807 # define TRIO_STRING_PUBLIC static
808 # include "triostr.c"
809 #endif /* defined(TRIO_MINIMAL) */
810
811 /*************************************************************************
812 * TrioIsQualifier
813 *
814 * Description:
815 * Remember to add all new qualifiers to this function.
816 * QUALIFIER_POSITION must not be added.
817 */
818 TRIO_PRIVATE BOOLEAN_T
819 TrioIsQualifier
820 TRIO_ARGS1((character),
821 TRIO_CONST char character)
822 {
823 /* QUALIFIER_POSITION is not included */
824 switch (character)
825 {
826 case '0': case '1': case '2': case '3': case '4':
827 case '5': case '6': case '7': case '8': case '9':
828 case QUALIFIER_PLUS:
829 case QUALIFIER_MINUS:
830 case QUALIFIER_SPACE:
831 case QUALIFIER_DOT:
832 case QUALIFIER_STAR:
833 case QUALIFIER_ALTERNATIVE:
834 case QUALIFIER_SHORT:
835 case QUALIFIER_LONG:
836 case QUALIFIER_LONG_UPPER:
837 case QUALIFIER_CIRCUMFLEX:
838 #if defined(QUALIFIER_SIZE_T)
839 case QUALIFIER_SIZE_T:
840 #endif
841 #if defined(QUALIFIER_PTRDIFF_T)
842 case QUALIFIER_PTRDIFF_T:
843 #endif
844 #if defined(QUALIFIER_INTMAX_T)
845 case QUALIFIER_INTMAX_T:
846 #endif
847 #if defined(QUALIFIER_QUAD)
848 case QUALIFIER_QUAD:
849 #endif
850 #if defined(QUALIFIER_SIZE_T_UPPER)
851 case QUALIFIER_SIZE_T_UPPER:
852 #endif
853 #if defined(QUALIFIER_WIDECHAR)
854 case QUALIFIER_WIDECHAR:
855 #endif
856 #if defined(QUALIFIER_QUOTE)
857 case QUALIFIER_QUOTE:
858 #endif
859 #if defined(QUALIFIER_STICKY)
860 case QUALIFIER_STICKY:
861 #endif
862 #if defined(QUALIFIER_VARSIZE)
863 case QUALIFIER_VARSIZE:
864 #endif
865 #if defined(QUALIFIER_PARAM)
866 case QUALIFIER_PARAM:
867 #endif
868 #if defined(QUALIFIER_FIXED_SIZE)
869 case QUALIFIER_FIXED_SIZE:
870 #endif
871 #if defined(QUALIFIER_ROUNDING_UPPER)
872 case QUALIFIER_ROUNDING_UPPER:
873 #endif
874 return TRUE;
875 default:
876 return FALSE;
877 }
878 }
879
880 /*************************************************************************
881 * TrioSetLocale
882 */
883 #if defined(USE_LOCALE)
884 TRIO_PRIVATE void
885 TrioSetLocale(TRIO_NOARGS)
886 {
887 internalLocaleValues = (struct lconv *)localeconv();
888 if (internalLocaleValues)
889 {
890 if ((internalLocaleValues->decimal_point) &&
891 (internalLocaleValues->decimal_point[0] != NIL))
892 {
893 internalDecimalPointLength = trio_length(internalLocaleValues->decimal_point);
894 if (internalDecimalPointLength == 1)
895 {
896 internalDecimalPoint = internalLocaleValues->decimal_point[0];
897 }
898 else
899 {
900 internalDecimalPoint = NIL;
901 trio_copy_max(internalDecimalPointString,
902 sizeof(internalDecimalPointString),
903 internalLocaleValues->decimal_point);
904 }
905 }
906 if ((internalLocaleValues->thousands_sep) &&
907 (internalLocaleValues->thousands_sep[0] != NIL))
908 {
909 trio_copy_max(internalThousandSeparator,
910 sizeof(internalThousandSeparator),
911 internalLocaleValues->thousands_sep);
912 internalThousandSeparatorLength = trio_length(internalThousandSeparator);
913 }
914 if ((internalLocaleValues->grouping) &&
915 (internalLocaleValues->grouping[0] != NIL))
916 {
917 trio_copy_max(internalGrouping,
918 sizeof(internalGrouping),
919 internalLocaleValues->grouping);
920 }
921 }
922 }
923 #endif /* defined(USE_LOCALE) */
924
925 TRIO_PRIVATE int
926 TrioCalcThousandSeparatorLength
927 TRIO_ARGS1((digits),
928 int digits)
929 {
930 #if TRIO_EXTENSION
931 int count = 0;
932 int step = NO_GROUPING;
933 char *groupingPointer = internalGrouping;
934
935 while (digits > 0)
936 {
937 if (*groupingPointer == CHAR_MAX)
938 {
939 /* Disable grouping */
940 break; /* while */
941 }
942 else if (*groupingPointer == 0)
943 {
944 /* Repeat last group */
945 if (step == NO_GROUPING)
946 {
947 /* Error in locale */
948 break; /* while */
949 }
950 }
951 else
952 {
953 step = *groupingPointer++;
954 }
955 if (digits > step)
956 count += internalThousandSeparatorLength;
957 digits -= step;
958 }
959 return count;
960 #else
961 return 0;
962 #endif
963 }
964
965 TRIO_PRIVATE BOOLEAN_T
966 TrioFollowedBySeparator
967 TRIO_ARGS1((position),
968 int position)
969 {
970 #if TRIO_EXTENSION
971 int step = 0;
972 char *groupingPointer = internalGrouping;
973
974 position--;
975 if (position == 0)
976 return FALSE;
977 while (position > 0)
978 {
979 if (*groupingPointer == CHAR_MAX)
980 {
981 /* Disable grouping */
982 break; /* while */
983 }
984 else if (*groupingPointer != 0)
985 {
986 step = *groupingPointer++;
987 }
988 if (step == 0)
989 break;
990 position -= step;
991 }
992 return (position == 0);
993 #else
994 return FALSE;
995 #endif
996 }
997
998 /*************************************************************************
999 * TrioGetPosition
1000 *
1001 * Get the %n$ position.
1002 */
1003 TRIO_PRIVATE int
1004 TrioGetPosition
1005 TRIO_ARGS2((format, indexPointer),
1006 TRIO_CONST char *format,
1007 int *indexPointer)
1008 {
1009 #if TRIO_UNIX98
1010 char *tmpformat;
1011 int number = 0;
1012 int index = *indexPointer;
1013
1014 number = (int)trio_to_long(&format[index], &tmpformat, BASE_DECIMAL);
1015 index = (int)(tmpformat - format);
1016 if ((number != 0) && (QUALIFIER_POSITION == format[index++]))
1017 {
1018 *indexPointer = index;
1019 /*
1020 * number is decreased by 1, because n$ starts from 1, whereas
1021 * the array it is indexing starts from 0.
1022 */
1023 return number - 1;
1024 }
1025 #endif
1026 return NO_POSITION;
1027 }
1028
1029 #if TRIO_EXTENSION
1030 /*************************************************************************
1031 * TrioFindNamespace
1032 *
1033 * Find registered user-defined specifier.
1034 * The prev argument is used for optimization only.
1035 */
1036 TRIO_PRIVATE trio_userdef_t *
1037 TrioFindNamespace
1038 TRIO_ARGS2((name, prev),
1039 TRIO_CONST char *name,
1040 trio_userdef_t **prev)
1041 {
1042 trio_userdef_t *def;
1043
1044 if (internalEnterCriticalRegion)
1045 (void)internalEnterCriticalRegion(NULL);
1046
1047 for (def = internalUserDef; def; def = def->next)
1048 {
1049 /* Case-sensitive string comparison */
1050 if (trio_equal_case(def->name, name))
1051 break;
1052
1053 if (prev)
1054 *prev = def;
1055 }
1056
1057 if (internalLeaveCriticalRegion)
1058 (void)internalLeaveCriticalRegion(NULL);
1059
1060 return def;
1061 }
1062 #endif
1063
1064 /*************************************************************************
1065 * TrioPower
1066 *
1067 * Description:
1068 * Calculate pow(base, exponent), where number and exponent are integers.
1069 */
1070 TRIO_PRIVATE trio_long_double_t
1071 TrioPower
1072 TRIO_ARGS2((number, exponent),
1073 int number,
1074 int exponent)
1075 {
1076 trio_long_double_t result;
1077
1078 if (number == 10)
1079 {
1080 switch (exponent)
1081 {
1082 /* Speed up calculation of common cases */
1083 case 0:
1084 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E-1);
1085 break;
1086 case 1:
1087 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+0);
1088 break;
1089 case 2:
1090 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+1);
1091 break;
1092 case 3:
1093 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+2);
1094 break;
1095 case 4:
1096 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+3);
1097 break;
1098 case 5:
1099 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+4);
1100 break;
1101 case 6:
1102 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+5);
1103 break;
1104 case 7:
1105 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+6);
1106 break;
1107 case 8:
1108 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+7);
1109 break;
1110 case 9:
1111 result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+8);
1112 break;
1113 default:
1114 result = powl((trio_long_double_t)number,
1115 (trio_long_double_t)exponent);
1116 break;
1117 }
1118 }
1119 else
1120 {
1121 return powl((trio_long_double_t)number, (trio_long_double_t)exponent);
1122 }
1123 return result;
1124 }
1125
1126 /*************************************************************************
1127 * TrioLogarithm
1128 */
1129 TRIO_PRIVATE double
1130 TrioLogarithm
1131 TRIO_ARGS2((number, base),
1132 double number,
1133 int base)
1134 {
1135 double result;
1136
1137 if (number <= 0.0)
1138 {
1139 /* xlC crashes on log(0) */
1140 result = (number == 0.0) ? trio_ninf() : trio_nan();
1141 }
1142 else
1143 {
1144 if (base == 10)
1145 {
1146 result = log10(number);
1147 }
1148 else
1149 {
1150 result = log10(number) / log10((double)base);
1151 }
1152 }
1153 return result;
1154 }
1155
1156 /*************************************************************************
1157 * TrioLogarithmBase
1158 */
1159 TRIO_PRIVATE double
1160 TrioLogarithmBase
1161 TRIO_ARGS1((base),
1162 int base)
1163 {
1164 switch (base)
1165 {
1166 case BASE_BINARY : return 1.0;
1167 case BASE_OCTAL : return 3.0;
1168 case BASE_DECIMAL: return 3.321928094887362345;
1169 case BASE_HEX : return 4.0;
1170 default : return TrioLogarithm((double)base, 2);
1171 }
1172 }
1173
1174 /*************************************************************************
1175 * TrioParse
1176 *
1177 * Description:
1178 * Parse the format string
1179 */
1180 TRIO_PRIVATE int
1181 TrioParse
1182 TRIO_ARGS5((type, format, parameters, arglist, argarray),
1183 int type,
1184 TRIO_CONST char *format,
1185 trio_parameter_t *parameters,
1186 TRIO_VA_LIST_PTR arglist,
1187 trio_pointer_t *argarray)
1188 {
1189 /* Count the number of times a parameter is referenced */
1190 unsigned short usedEntries[MAX_PARAMETERS];
1191 /* Parameter counters */
1192 int parameterPosition;
1193 int currentParam;
1194 int maxParam = -1;
1195 /* Utility variables */
1196 trio_flags_t flags;
1197 int width;
1198 int precision;
1199 int varsize;
1200 int base;
1201 int index; /* Index into formatting string */
1202 int dots; /* Count number of dots in modifier part */
1203 BOOLEAN_T positional; /* Does the specifier have a positional? */
1204 BOOLEAN_T gotSticky = FALSE; /* Are there any sticky modifiers at all? */
1205 /*
1206 * indices specifies the order in which the parameters must be
1207 * read from the va_args (this is necessary to handle positionals)
1208 */
1209 int indices[MAX_PARAMETERS];
1210 int pos = 0;
1211 /* Various variables */
1212 char ch;
1213 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
1214 int charlen;
1215 #endif
1216 int save_errno;
1217 int i = -1;
1218 int num;
1219 char *tmpformat;
1220
1221 /* One and only one of arglist and argarray must be used */
1222 assert((arglist != NULL) ^ (argarray != NULL));
1223
1224 /*
1225 * The 'parameters' array is not initialized, but we need to
1226 * know which entries we have used.
1227 */
1228 memset(usedEntries, 0, sizeof(usedEntries));
1229
1230 save_errno = errno;
1231 index = 0;
1232 parameterPosition = 0;
1233 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
1234 (void)mblen(NULL, 0);
1235 #endif
1236
1237 while (format[index])
1238 {
1239 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
1240 if (! isascii(format[index]))
1241 {
1242 /*
1243 * Multibyte characters cannot be legal specifiers or
1244 * modifiers, so we skip over them.
1245 */
1246 charlen = mblen(&format[index], MB_LEN_MAX);
1247 index += (charlen > 0) ? charlen : 1;
1248 continue; /* while */
1249 }
1250 #endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */
1251 if (CHAR_IDENTIFIER == format[index++])
1252 {
1253 if (CHAR_IDENTIFIER == format[index])
1254 {
1255 index++;
1256 continue; /* while */
1257 }
1258
1259 flags = FLAGS_NEW;
1260 dots = 0;
1261 currentParam = TrioGetPosition(format, &index);
1262 positional = (NO_POSITION != currentParam);
1263 if (!positional)
1264 {
1265 /* We have no positional, get the next counter */
1266 currentParam = parameterPosition;
1267 }
1268 if(currentParam >= MAX_PARAMETERS)
1269 {
1270 /* Bail out completely to make the error more obvious */
1271 return TRIO_ERROR_RETURN(TRIO_ETOOMANY, index);
1272 }
1273
1274 if (currentParam > maxParam)
1275 maxParam = currentParam;
1276
1277 /* Default values */
1278 width = NO_WIDTH;
1279 precision = NO_PRECISION;
1280 base = NO_BASE;
1281 varsize = NO_SIZE;
1282
1283 while (TrioIsQualifier(format[index]))
1284 {
1285 ch = format[index++];
1286
1287 switch (ch)
1288 {
1289 case QUALIFIER_SPACE:
1290 flags |= FLAGS_SPACE;
1291 break;
1292
1293 case QUALIFIER_PLUS:
1294 flags |= FLAGS_SHOWSIGN;
1295 break;
1296
1297 case QUALIFIER_MINUS:
1298 flags |= FLAGS_LEFTADJUST;
1299 flags &= ~FLAGS_NILPADDING;
1300 break;
1301
1302 case QUALIFIER_ALTERNATIVE:
1303 flags |= FLAGS_ALTERNATIVE;
1304 break;
1305
1306 case QUALIFIER_DOT:
1307 if (dots == 0) /* Precision */
1308 {
1309 dots++;
1310
1311 /* Skip if no precision */
1312 if (QUALIFIER_DOT == format[index])
1313 break;
1314
1315 /* After the first dot we have the precision */
1316 flags |= FLAGS_PRECISION;
1317 if ((QUALIFIER_STAR == format[index])
1318 #if defined(QUALIFIER_PARAM)
1319 || (QUALIFIER_PARAM == format[index])
1320 #endif
1321 )
1322 {
1323 index++;
1324 flags |= FLAGS_PRECISION_PARAMETER;
1325
1326 precision = TrioGetPosition(format, &index);
1327 if (precision == NO_POSITION)
1328 {
1329 parameterPosition++;
1330 if (positional)
1331 precision = parameterPosition;
1332 else
1333 {
1334 precision = currentParam;
1335 currentParam = precision + 1;
1336 }
1337 }
1338 else
1339 {
1340 if (! positional)
1341 currentParam = precision + 1;
1342 if (width > maxParam)
1343 maxParam = precision;
1344 }
1345 if (currentParam > maxParam)
1346 maxParam = currentParam;
1347 }
1348 else
1349 {
1350 precision = trio_to_long(&format[index],
1351 &tmpformat,
1352 BASE_DECIMAL);
1353 index = (int)(tmpformat - format);
1354 }
1355 }
1356 else if (dots == 1) /* Base */
1357 {
1358 dots++;
1359
1360 /* After the second dot we have the base */
1361 flags |= FLAGS_BASE;
1362 if ((QUALIFIER_STAR == format[index])
1363 #if defined(QUALIFIER_PARAM)
1364 || (QUALIFIER_PARAM == format[index])
1365 #endif
1366 )
1367 {
1368 index++;
1369 flags |= FLAGS_BASE_PARAMETER;
1370 base = TrioGetPosition(format, &index);
1371 if (base == NO_POSITION)
1372 {
1373 parameterPosition++;
1374 if (positional)
1375 base = parameterPosition;
1376 else
1377 {
1378 base = currentParam;
1379 currentParam = base + 1;
1380 }
1381 }
1382 else
1383 {
1384 if (! positional)
1385 currentParam = base + 1;
1386 if (base > maxParam)
1387 maxParam = base;
1388 }
1389 if (currentParam > maxParam)
1390 maxParam = currentParam;
1391 }
1392 else
1393 {
1394 base = trio_to_long(&format[index],
1395 &tmpformat,
1396 BASE_DECIMAL);
1397 if (base > MAX_BASE)
1398 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1399 index = (int)(tmpformat - format);
1400 }
1401 }
1402 else
1403 {
1404 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1405 }
1406 break; /* QUALIFIER_DOT */
1407
1408 #if defined(QUALIFIER_PARAM)
1409 case QUALIFIER_PARAM:
1410 type = TYPE_PRINT;
1411 /* FALLTHROUGH */
1412 #endif
1413 case QUALIFIER_STAR:
1414 /* This has different meanings for print and scan */
1415 if (TYPE_PRINT == type)
1416 {
1417 /* Read with from parameter */
1418 flags |= (FLAGS_WIDTH | FLAGS_WIDTH_PARAMETER);
1419 width = TrioGetPosition(format, &index);
1420 if (width == NO_POSITION)
1421 {
1422 parameterPosition++;
1423 if (positional)
1424 width = parameterPosition;
1425 else
1426 {
1427 width = currentParam;
1428 currentParam = width + 1;
1429 }
1430 }
1431 else
1432 {
1433 if (! positional)
1434 currentParam = width + 1;
1435 if (width > maxParam)
1436 maxParam = width;
1437 }
1438 if (currentParam > maxParam)
1439 maxParam = currentParam;
1440 }
1441 else
1442 {
1443 /* Scan, but do not store result */
1444 flags |= FLAGS_IGNORE;
1445 }
1446
1447 break; /* QUALIFIER_STAR */
1448
1449 case '0':
1450 if (! (flags & FLAGS_LEFTADJUST))
1451 flags |= FLAGS_NILPADDING;
1452 /* FALLTHROUGH */
1453 case '1': case '2': case '3': case '4':
1454 case '5': case '6': case '7': case '8': case '9':
1455 flags |= FLAGS_WIDTH;
1456 /* &format[index - 1] is used to "rewind" the read
1457 * character from format
1458 */
1459 width = trio_to_long(&format[index - 1],
1460 &tmpformat,
1461 BASE_DECIMAL);
1462 index = (int)(tmpformat - format);
1463 break;
1464
1465 case QUALIFIER_SHORT:
1466 if (flags & FLAGS_SHORTSHORT)
1467 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1468 else if (flags & FLAGS_SHORT)
1469 flags |= FLAGS_SHORTSHORT;
1470 else
1471 flags |= FLAGS_SHORT;
1472 break;
1473
1474 case QUALIFIER_LONG:
1475 if (flags & FLAGS_QUAD)
1476 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1477 else if (flags & FLAGS_LONG)
1478 flags |= FLAGS_QUAD;
1479 else
1480 flags |= FLAGS_LONG;
1481 break;
1482
1483 case QUALIFIER_LONG_UPPER:
1484 flags |= FLAGS_LONGDOUBLE;
1485 break;
1486
1487 #if defined(QUALIFIER_SIZE_T)
1488 case QUALIFIER_SIZE_T:
1489 flags |= FLAGS_SIZE_T;
1490 /* Modify flags for later truncation of number */
1491 if (sizeof(size_t) == sizeof(trio_ulonglong_t))
1492 flags |= FLAGS_QUAD;
1493 else if (sizeof(size_t) == sizeof(long))
1494 flags |= FLAGS_LONG;
1495 break;
1496 #endif
1497
1498 #if defined(QUALIFIER_PTRDIFF_T)
1499 case QUALIFIER_PTRDIFF_T:
1500 flags |= FLAGS_PTRDIFF_T;
1501 if (sizeof(ptrdiff_t) == sizeof(trio_ulonglong_t))
1502 flags |= FLAGS_QUAD;
1503 else if (sizeof(ptrdiff_t) == sizeof(long))
1504 flags |= FLAGS_LONG;
1505 break;
1506 #endif
1507
1508 #if defined(QUALIFIER_INTMAX_T)
1509 case QUALIFIER_INTMAX_T:
1510 flags |= FLAGS_INTMAX_T;
1511 if (sizeof(trio_intmax_t) == sizeof(trio_ulonglong_t))
1512 flags |= FLAGS_QUAD;
1513 else if (sizeof(trio_intmax_t) == sizeof(long))
1514 flags |= FLAGS_LONG;
1515 break;
1516 #endif
1517
1518 #if defined(QUALIFIER_QUAD)
1519 case QUALIFIER_QUAD:
1520 flags |= FLAGS_QUAD;
1521 break;
1522 #endif
1523
1524 #if defined(QUALIFIER_FIXED_SIZE)
1525 case QUALIFIER_FIXED_SIZE:
1526 if (flags & FLAGS_FIXED_SIZE)
1527 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1528
1529 if (flags & (FLAGS_ALL_SIZES | FLAGS_LONGDOUBLE |
1530 FLAGS_WIDECHAR | FLAGS_VARSIZE_PARAMETER))
1531 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1532
1533 if ((format[index] == '6') &&
1534 (format[index + 1] == '4'))
1535 {
1536 varsize = sizeof(trio_int64_t);
1537 index += 2;
1538 }
1539 else if ((format[index] == '3') &&
1540 (format[index + 1] == '2'))
1541 {
1542 varsize = sizeof(trio_int32_t);
1543 index += 2;
1544 }
1545 else if ((format[index] == '1') &&
1546 (format[index + 1] == '6'))
1547 {
1548 varsize = sizeof(trio_int16_t);
1549 index += 2;
1550 }
1551 else if (format[index] == '8')
1552 {
1553 varsize = sizeof(trio_int8_t);
1554 index++;
1555 }
1556 else
1557 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1558
1559 flags |= FLAGS_FIXED_SIZE;
1560 break;
1561 #endif
1562
1563 #if defined(QUALIFIER_WIDECHAR)
1564 case QUALIFIER_WIDECHAR:
1565 flags |= FLAGS_WIDECHAR;
1566 break;
1567 #endif
1568
1569 #if defined(QUALIFIER_SIZE_T_UPPER)
1570 case QUALIFIER_SIZE_T_UPPER:
1571 break;
1572 #endif
1573
1574 #if defined(QUALIFIER_QUOTE)
1575 case QUALIFIER_QUOTE:
1576 flags |= FLAGS_QUOTE;
1577 break;
1578 #endif
1579
1580 #if defined(QUALIFIER_STICKY)
1581 case QUALIFIER_STICKY:
1582 flags |= FLAGS_STICKY;
1583 gotSticky = TRUE;
1584 break;
1585 #endif
1586
1587 #if defined(QUALIFIER_VARSIZE)
1588 case QUALIFIER_VARSIZE:
1589 flags |= FLAGS_VARSIZE_PARAMETER;
1590 parameterPosition++;
1591 if (positional)
1592 varsize = parameterPosition;
1593 else
1594 {
1595 varsize = currentParam;
1596 currentParam = varsize + 1;
1597 }
1598 if (currentParam > maxParam)
1599 maxParam = currentParam;
1600 break;
1601 #endif
1602
1603 #if defined(QUALIFIER_ROUNDING_UPPER)
1604 case QUALIFIER_ROUNDING_UPPER:
1605 flags |= FLAGS_ROUNDING;
1606 break;
1607 #endif
1608
1609 default:
1610 /* Bail out completely to make the error more obvious */
1611 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1612 }
1613 } /* while qualifier */
1614
1615 /*
1616 * Parameters only need the type and value. The value is
1617 * read later.
1618 */
1619 if (flags & FLAGS_WIDTH_PARAMETER)
1620 {
1621 usedEntries[width] += 1;
1622 parameters[pos].type = FORMAT_PARAMETER;
1623 parameters[pos].flags = 0;
1624 indices[width] = pos;
1625 width = pos++;
1626 }
1627 if (flags & FLAGS_PRECISION_PARAMETER)
1628 {
1629 usedEntries[precision] += 1;
1630 parameters[pos].type = FORMAT_PARAMETER;
1631 parameters[pos].flags = 0;
1632 indices[precision] = pos;
1633 precision = pos++;
1634 }
1635 if (flags & FLAGS_BASE_PARAMETER)
1636 {
1637 usedEntries[base] += 1;
1638 parameters[pos].type = FORMAT_PARAMETER;
1639 parameters[pos].flags = 0;
1640 indices[base] = pos;
1641 base = pos++;
1642 }
1643 if (flags & FLAGS_VARSIZE_PARAMETER)
1644 {
1645 usedEntries[varsize] += 1;
1646 parameters[pos].type = FORMAT_PARAMETER;
1647 parameters[pos].flags = 0;
1648 indices[varsize] = pos;
1649 varsize = pos++;
1650 }
1651
1652 indices[currentParam] = pos;
1653
1654 switch (format[index++])
1655 {
1656 #if defined(SPECIFIER_CHAR_UPPER)
1657 case SPECIFIER_CHAR_UPPER:
1658 flags |= FLAGS_WIDECHAR;
1659 /* FALLTHROUGH */
1660 #endif
1661 case SPECIFIER_CHAR:
1662 if (flags & FLAGS_LONG)
1663 flags |= FLAGS_WIDECHAR;
1664 else if (flags & FLAGS_SHORT)
1665 flags &= ~FLAGS_WIDECHAR;
1666 parameters[pos].type = FORMAT_CHAR;
1667 break;
1668
1669 #if defined(SPECIFIER_STRING_UPPER)
1670 case SPECIFIER_STRING_UPPER:
1671 flags |= FLAGS_WIDECHAR;
1672 /* FALLTHROUGH */
1673 #endif
1674 case SPECIFIER_STRING:
1675 if (flags & FLAGS_LONG)
1676 flags |= FLAGS_WIDECHAR;
1677 else if (flags & FLAGS_SHORT)
1678 flags &= ~FLAGS_WIDECHAR;
1679 parameters[pos].type = FORMAT_STRING;
1680 break;
1681
1682 case SPECIFIER_GROUP:
1683 if (TYPE_SCAN == type)
1684 {
1685 int depth = 1;
1686 parameters[pos].type = FORMAT_GROUP;
1687 if (format[index] == QUALIFIER_CIRCUMFLEX)
1688 index++;
1689 if (format[index] == SPECIFIER_UNGROUP)
1690 index++;
1691 if (format[index] == QUALIFIER_MINUS)
1692 index++;
1693 /* Skip nested brackets */
1694 while (format[index] != NIL)
1695 {
1696 if (format[index] == SPECIFIER_GROUP)
1697 {
1698 depth++;
1699 }
1700 else if (format[index] == SPECIFIER_UNGROUP)
1701 {
1702 if (--depth <= 0)
1703 {
1704 index++;
1705 break;
1706 }
1707 }
1708 index++;
1709 }
1710 }
1711 break;
1712
1713 case SPECIFIER_INTEGER:
1714 parameters[pos].type = FORMAT_INT;
1715 break;
1716
1717 case SPECIFIER_UNSIGNED:
1718 flags |= FLAGS_UNSIGNED;
1719 parameters[pos].type = FORMAT_INT;
1720 break;
1721
1722 case SPECIFIER_DECIMAL:
1723 /* Disable base modifier */
1724 flags &= ~FLAGS_BASE_PARAMETER;
1725 base = BASE_DECIMAL;
1726 parameters[pos].type = FORMAT_INT;
1727 break;
1728
1729 case SPECIFIER_OCTAL:
1730 flags |= FLAGS_UNSIGNED;
1731 flags &= ~FLAGS_BASE_PARAMETER;
1732 base = BASE_OCTAL;
1733 parameters[pos].type = FORMAT_INT;
1734 break;
1735
1736 #if defined(SPECIFIER_BINARY)
1737 case SPECIFIER_BINARY_UPPER:
1738 flags |= FLAGS_UPPER;
1739 /* FALLTHROUGH */
1740 case SPECIFIER_BINARY:
1741 flags |= FLAGS_NILPADDING;
1742 flags &= ~FLAGS_BASE_PARAMETER;
1743 base = BASE_BINARY;
1744 parameters[pos].type = FORMAT_INT;
1745 break;
1746 #endif
1747
1748 case SPECIFIER_HEX_UPPER:
1749 flags |= FLAGS_UPPER;
1750 /* FALLTHROUGH */
1751 case SPECIFIER_HEX:
1752 flags |= FLAGS_UNSIGNED;
1753 flags &= ~FLAGS_BASE_PARAMETER;
1754 base = BASE_HEX;
1755 parameters[pos].type = FORMAT_INT;
1756 break;
1757
1758 case SPECIFIER_FLOAT_E_UPPER:
1759 flags |= FLAGS_UPPER;
1760 /* FALLTHROUGH */
1761 case SPECIFIER_FLOAT_E:
1762 flags |= FLAGS_FLOAT_E;
1763 parameters[pos].type = FORMAT_DOUBLE;
1764 break;
1765
1766 case SPECIFIER_FLOAT_G_UPPER:
1767 flags |= FLAGS_UPPER;
1768 /* FALLTHROUGH */
1769 case SPECIFIER_FLOAT_G:
1770 flags |= FLAGS_FLOAT_G;
1771 parameters[pos].type = FORMAT_DOUBLE;
1772 break;
1773
1774 case SPECIFIER_FLOAT_F_UPPER:
1775 flags |= FLAGS_UPPER;
1776 /* FALLTHROUGH */
1777 case SPECIFIER_FLOAT_F:
1778 parameters[pos].type = FORMAT_DOUBLE;
1779 break;
1780
1781 case SPECIFIER_POINTER:
1782 if (sizeof(trio_pointer_t) == sizeof(trio_ulonglong_t))
1783 flags |= FLAGS_QUAD;
1784 else if (sizeof(trio_pointer_t) == sizeof(long))
1785 flags |= FLAGS_LONG;
1786 parameters[pos].type = FORMAT_POINTER;
1787 break;
1788
1789 case SPECIFIER_COUNT:
1790 parameters[pos].type = FORMAT_COUNT;
1791 break;
1792
1793 #if defined(SPECIFIER_HEXFLOAT)
1794 # if defined(SPECIFIER_HEXFLOAT_UPPER)
1795 case SPECIFIER_HEXFLOAT_UPPER:
1796 flags |= FLAGS_UPPER;
1797 /* FALLTHROUGH */
1798 # endif
1799 case SPECIFIER_HEXFLOAT:
1800 base = BASE_HEX;
1801 parameters[pos].type = FORMAT_DOUBLE;
1802 break;
1803 #endif
1804
1805 #if defined(FORMAT_ERRNO)
1806 case SPECIFIER_ERRNO:
1807 parameters[pos].type = FORMAT_ERRNO;
1808 break;
1809 #endif
1810
1811 #if defined(SPECIFIER_USER_DEFINED_BEGIN)
1812 case SPECIFIER_USER_DEFINED_BEGIN:
1813 {
1814 unsigned int max;
1815 int without_namespace = TRUE;
1816
1817 parameters[pos].type = FORMAT_USER_DEFINED;
1818 parameters[pos].user_name[0] = NIL;
1819 tmpformat = (char *)&format[index];
1820
1821 while ((ch = format[index]))
1822 {
1823 index++;
1824 if (ch == SPECIFIER_USER_DEFINED_END)
1825 {
1826 if (without_namespace)
1827 {
1828 /* We must get the handle first */
1829 parameters[pos].type = FORMAT_PARAMETER;
1830 parameters[pos].indexAfterSpecifier = index;
1831 parameters[pos].flags = FLAGS_USER_DEFINED;
1832 /* Adjust parameters for insertion of new one */
1833 pos++;
1834 usedEntries[currentParam] += 1;
1835 parameters[pos].type = FORMAT_USER_DEFINED;
1836 currentParam++;
1837 indices[currentParam] = pos;
1838 if (currentParam > maxParam)
1839 maxParam = currentParam;
1840 }
1841 /* Copy the user data */
1842 max = (unsigned int)(&format[index] - tmpformat);
1843 if (max > MAX_USER_DATA)
1844 max = MAX_USER_DATA;
1845 trio_copy_max(parameters[pos].user_data,
1846 max,
1847 tmpformat);
1848 break; /* while */
1849 }
1850 if (ch == SPECIFIER_USER_DEFINED_SEPARATOR)
1851 {
1852 without_namespace = FALSE;
1853 /* Copy the namespace for later looking-up */
1854 max = (int)(&format[index] - tmpformat);
1855 if (max > MAX_USER_NAME)
1856 max = MAX_USER_NAME;
1857 trio_copy_max(parameters[pos].user_name,
1858 max,
1859 tmpformat);
1860 tmpformat = (char *)&format[index];
1861 }
1862 }
1863 if (ch != SPECIFIER_USER_DEFINED_END)
1864 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1865 }
1866 break;
1867 #endif /* defined(SPECIFIER_USER_DEFINED_BEGIN) */
1868
1869 default:
1870 /* Bail out completely to make the error more obvious */
1871 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
1872 }
1873
1874 /* Count the number of times this entry has been used */
1875 usedEntries[currentParam] += 1;
1876
1877 /* Find last sticky parameters */
1878 if (gotSticky && !(flags & FLAGS_STICKY))
1879 {
1880 for (i = pos - 1; i >= 0; i--)
1881 {
1882 if (parameters[i].type == FORMAT_PARAMETER)
1883 continue;
1884 if ((parameters[i].flags & FLAGS_STICKY) &&
1885 (parameters[i].type == parameters[pos].type))
1886 {
1887 /* Do not overwrite current qualifiers */
1888 flags |= (parameters[i].flags & (unsigned long)~FLAGS_STICKY);
1889 if (width == NO_WIDTH)
1890 width = parameters[i].width;
1891 if (precision == NO_PRECISION)
1892 precision = parameters[i].precision;
1893 if (base == NO_BASE)
1894 base = parameters[i].base;
1895 break;
1896 }
1897 }
1898 }
1899
1900 parameters[pos].indexAfterSpecifier = index;
1901 parameters[pos].flags = flags;
1902 parameters[pos].width = width;
1903 parameters[pos].precision = precision;
1904 parameters[pos].base = (base == NO_BASE) ? BASE_DECIMAL : base;
1905 parameters[pos].varsize = varsize;
1906 pos++;
1907
1908 if (! positional)
1909 parameterPosition++;
1910
1911 } /* if identifier */
1912
1913 } /* while format characters left */
1914
1915 for (num = 0; num <= maxParam; num++)
1916 {
1917 if (usedEntries[num] != 1)
1918 {
1919 if (usedEntries[num] == 0) /* gap detected */
1920 return TRIO_ERROR_RETURN(TRIO_EGAP, num);
1921 else /* double references detected */
1922 return TRIO_ERROR_RETURN(TRIO_EDBLREF, num);
1923 }
1924
1925 i = indices[num];
1926
1927 /*
1928 * FORMAT_PARAMETERS are only present if they must be read,
1929 * so it makes no sense to check the ignore flag (besides,
1930 * the flags variable is not set for that particular type)
1931 */
1932 if ((parameters[i].type != FORMAT_PARAMETER) &&
1933 (parameters[i].flags & FLAGS_IGNORE))
1934 continue; /* for all arguments */
1935
1936 /*
1937 * The stack arguments are read according to ANSI C89
1938 * default argument promotions:
1939 *
1940 * char = int
1941 * short = int
1942 * unsigned char = unsigned int
1943 * unsigned short = unsigned int
1944 * float = double
1945 *
1946 * In addition to the ANSI C89 these types are read (the
1947 * default argument promotions of C99 has not been
1948 * considered yet)
1949 *
1950 * long long
1951 * long double
1952 * size_t
1953 * ptrdiff_t
1954 * intmax_t
1955 */
1956 switch (parameters[i].type)
1957 {
1958 case FORMAT_GROUP:
1959 case FORMAT_STRING:
1960 #if TRIO_WIDECHAR
1961 if (flags & FLAGS_WIDECHAR)
1962 {
1963 parameters[i].data.wstring = (argarray == NULL)
1964 ? va_arg(TRIO_VA_LIST_DEREF(arglist), trio_wchar_t *)
1965 : (trio_wchar_t *)(argarray[num]);
1966 }
1967 else
1968 #endif
1969 {
1970 parameters[i].data.string = (argarray == NULL)
1971 ? va_arg(TRIO_VA_LIST_DEREF(arglist), char *)
1972 : (char *)(argarray[num]);
1973 }
1974 break;
1975
1976 #if defined(FORMAT_USER_DEFINED)
1977 case FORMAT_USER_DEFINED:
1978 #endif
1979 case FORMAT_POINTER:
1980 case FORMAT_COUNT:
1981 case FORMAT_UNKNOWN:
1982 parameters[i].data.pointer = (argarray == NULL)
1983 ? va_arg(TRIO_VA_LIST_DEREF(arglist), trio_pointer_t )
1984 : argarray[num];
1985 break;
1986
1987 case FORMAT_CHAR:
1988 case FORMAT_INT:
1989 if (TYPE_SCAN == type)
1990 {
1991 if (argarray == NULL)
1992 parameters[i].data.pointer =
1993 (trio_pointer_t)va_arg(TRIO_VA_LIST_DEREF(arglist), trio_pointer_t);
1994 else
1995 {
1996 if (parameters[i].type == FORMAT_CHAR)
1997 parameters[i].data.pointer =
1998 (trio_pointer_t)((char *)argarray[num]);
1999 else if (parameters[i].flags & FLAGS_SHORT)
2000 parameters[i].data.pointer =
2001 (trio_pointer_t)((short *)argarray[num]);
2002 else
2003 parameters[i].data.pointer =
2004 (trio_pointer_t)((int *)argarray[num]);
2005 }
2006 }
2007 else
2008 {
2009 #if defined(QUALIFIER_VARSIZE) || defined(QUALIFIER_FIXED_SIZE)
2010 if (parameters[i].flags
2011 & (FLAGS_VARSIZE_PARAMETER | FLAGS_FIXED_SIZE))
2012 {
2013 if (parameters[i].flags & FLAGS_VARSIZE_PARAMETER)
2014 {
2015 /*
2016 * Variable sizes are mapped onto the fixed sizes, in
2017 * accordance with integer promotion.
2018 *
2019 * Please note that this may not be portable, as we
2020 * only guess the size, not the layout of the numbers.
2021 * For example, if int is little-endian, and long is
2022 * big-endian, then this will fail.
2023 */
2024 varsize = (int)parameters[parameters[i].varsize].data.number.as_unsigned;
2025 }
2026 else
2027 {
2028 /* Used for the I<bits> modifiers */
2029 varsize = parameters[i].varsize;
2030 }
2031 parameters[i].flags &= ~FLAGS_ALL_VARSIZES;
2032
2033 if (varsize <= (int)sizeof(int))
2034 ;
2035 else if (varsize <= (int)sizeof(long))
2036 parameters[i].flags |= FLAGS_LONG;
2037 #if defined(QUALIFIER_INTMAX_T)
2038 else if (varsize <= (int)sizeof(trio_longlong_t))
2039 parameters[i].flags |= FLAGS_QUAD;
2040 else
2041 parameters[i].flags |= FLAGS_INTMAX_T;
2042 #else
2043 else
2044 parameters[i].flags |= FLAGS_QUAD;
2045 #endif
2046 }
2047 #endif /* defined(QUALIFIER_VARSIZE) */
2048 #if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
2049 if (parameters[i].flags & FLAGS_SIZE_T)
2050 parameters[i].data.number.as_unsigned = (argarray == NULL)
2051 ? (trio_uintmax_t)va_arg(TRIO_VA_LIST_DEREF(arglist), size_t)
2052 : (trio_uintmax_t)(*((size_t *)argarray[num]));
2053 else
2054 #endif
2055 #if defined(QUALIFIER_PTRDIFF_T)
2056 if (parameters[i].flags & FLAGS_PTRDIFF_T)
2057 parameters[i].data.number.as_unsigned = (argarray == NULL)
2058 ? (trio_uintmax_t)va_arg(TRIO_VA_LIST_DEREF(arglist), ptrdiff_t)
2059 : (trio_uintmax_t)(*((ptrdiff_t *)argarray[num]));
2060 else
2061 #endif
2062 #if defined(QUALIFIER_INTMAX_T)
2063 if (parameters[i].flags & FLAGS_INTMAX_T)
2064 parameters[i].data.number.as_unsigned = (argarray == NULL)
2065 ? (trio_uintmax_t)va_arg(TRIO_VA_LIST_DEREF(arglist), trio_intmax_t)
2066 : (trio_uintmax_t)(*((trio_intmax_t *)argarray[num]));
2067 else
2068 #endif
2069 if (parameters[i].flags & FLAGS_QUAD)
2070 parameters[i].data.number.as_unsigned = (argarray == NULL)
2071 ? (trio_uintmax_t)va_arg(TRIO_VA_LIST_DEREF(arglist), trio_ulonglong_t)
2072 : (trio_uintmax_t)(*((trio_ulonglong_t *)argarray[num]));
2073 else if (parameters[i].flags & FLAGS_LONG)
2074 parameters[i].data.number.as_unsigned = (argarray == NULL)
2075 ? (trio_uintmax_t)va_arg(TRIO_VA_LIST_DEREF(arglist), long)
2076 : (trio_uintmax_t)(*((long *)argarray[num]));
2077 else
2078 {
2079 if (argarray == NULL)
2080 parameters[i].data.number.as_unsigned = (trio_uintmax_t)va_arg(TRIO_VA_LIST_DEREF(arglist), int);
2081 else
2082 {
2083 if (parameters[i].type == FORMAT_CHAR)
2084 parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((char *)argarray[num]));
2085 else if (parameters[i].flags & FLAGS_SHORT)
2086 parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((short *)argarray[num]));
2087 else
2088 parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((int *)argarray[num]));
2089 }
2090 }
2091 }
2092 break;
2093
2094 case FORMAT_PARAMETER:
2095 /*
2096 * The parameter for the user-defined specifier is a pointer,
2097 * whereas the rest (width, precision, base) uses an integer.
2098 */
2099 if (parameters[i].flags & FLAGS_USER_DEFINED)
2100 parameters[i].data.pointer = (argarray == NULL)
2101 ? va_arg(TRIO_VA_LIST_DEREF(arglist), trio_pointer_t )
2102 : argarray[num];
2103 else
2104 parameters[i].data.number.as_unsigned = (argarray == NULL)
2105 ? (trio_uintmax_t)va_arg(TRIO_VA_LIST_DEREF(arglist), int)
2106 : (trio_uintmax_t)(*((int *)argarray[num]));
2107 break;
2108
2109 case FORMAT_DOUBLE:
2110 if (TYPE_SCAN == type)
2111 {
2112 if (parameters[i].flags & FLAGS_LONGDOUBLE)
2113 parameters[i].data.longdoublePointer = (argarray == NULL)
2114 ? va_arg(TRIO_VA_LIST_DEREF(arglist), trio_long_double_t *)
2115 : (trio_long_double_t *)argarray[num];
2116 else
2117 {
2118 if (parameters[i].flags & FLAGS_LONG)
2119 parameters[i].data.doublePointer = (argarray == NULL)
2120 ? va_arg(TRIO_VA_LIST_DEREF(arglist), double *)
2121 : (double *)argarray[num];
2122 else
2123 parameters[i].data.doublePointer = (argarray == NULL)
2124 ? (double *)va_arg(TRIO_VA_LIST_DEREF(arglist), float *)
2125 : (double *)((float *)argarray[num]);
2126 }
2127 }
2128 else
2129 {
2130 if (parameters[i].flags & FLAGS_LONGDOUBLE)
2131 parameters[i].data.longdoubleNumber = (argarray == NULL)
2132 ? va_arg(TRIO_VA_LIST_DEREF(arglist), trio_long_double_t)
2133 : (trio_long_double_t)(*((trio_long_double_t *)argarray[num]));
2134 else
2135 {
2136 if (argarray == NULL)
2137 parameters[i].data.longdoubleNumber =
2138 (trio_long_double_t)va_arg(TRIO_VA_LIST_DEREF(arglist), double);
2139 else
2140 {
2141 if (parameters[i].flags & FLAGS_SHORT)
2142 parameters[i].data.longdoubleNumber =
2143 (trio_long_double_t)(*((float *)argarray[num]));
2144 else
2145 parameters[i].data.longdoubleNumber =
2146 (trio_long_double_t)(*((double *)argarray[num]));
2147 }
2148 }
2149 }
2150 break;
2151
2152 #if defined(FORMAT_ERRNO)
2153 case FORMAT_ERRNO:
2154 parameters[i].data.errorNumber = save_errno;
2155 break;
2156 #endif
2157
2158 default:
2159 break;
2160 }
2161 } /* for all specifiers */
2162 return num;
2163 }
2164
2165
2166 /*************************************************************************
2167 *
2168 * FORMATTING
2169 *
2170 ************************************************************************/
2171
2172
2173 /*************************************************************************
2174 * TrioWriteNumber
2175 *
2176 * Description:
2177 * Output a number.
2178 * The complexity of this function is a result of the complexity
2179 * of the dependencies of the flags.
2180 */
2181 TRIO_PRIVATE void
2182 TrioWriteNumber
2183 TRIO_ARGS6((self, number, flags, width, precision, base),
2184 trio_class_t *self,
2185 trio_uintmax_t number,
2186 trio_flags_t flags,
2187 int width,
2188 int precision,
2189 int base)
2190 {
2191 BOOLEAN_T isNegative;
2192 BOOLEAN_T isNumberZero;
2193 BOOLEAN_T isPrecisionZero;
2194 BOOLEAN_T ignoreNumber;
2195 char buffer[MAX_CHARS_IN(trio_uintmax_t) * (1 + MAX_LOCALE_SEPARATOR_LENGTH) + 1];
2196 char *bufferend;
2197 char *pointer;
2198 TRIO_CONST char *digits;
2199 int i;
2200 int length;
2201 char *p;
2202 int count;
2203
2204 assert(VALID(self));
2205 assert(VALID(self->OutStream));
2206 assert(((base >= MIN_BASE) && (base <= MAX_BASE)) || (base == NO_BASE));
2207
2208 digits = (flags & FLAGS_UPPER) ? internalDigitsUpper : internalDigitsLower;
2209 if (base == NO_BASE)
2210 base = BASE_DECIMAL;
2211
2212 isNumberZero = (number == 0);
2213 isPrecisionZero = (precision == 0);
2214 ignoreNumber = (isNumberZero
2215 && isPrecisionZero
2216 && !((flags & FLAGS_ALTERNATIVE) && (base == BASE_OCTAL)));
2217
2218 if (flags & FLAGS_UNSIGNED)
2219 {
2220 isNegative = FALSE;
2221 flags &= ~FLAGS_SHOWSIGN;
2222 }
2223 else
2224 {
2225 isNegative = ((trio_intmax_t)number < 0);
2226 if (isNegative)
2227 number = -((trio_intmax_t)number);
2228 }
2229
2230 if (flags & FLAGS_QUAD)
2231 number &= (trio_ulonglong_t)-1;
2232 else if (flags & FLAGS_LONG)
2233 number &= (unsigned long)-1;
2234 else
2235 number &= (unsigned int)-1;
2236
2237 /* Build number */
2238 pointer = bufferend = &buffer[sizeof(buffer) - 1];
2239 *pointer-- = NIL;
2240 for (i = 1; i < (int)sizeof(buffer); i++)
2241 {
2242 *pointer-- = digits[number % base];
2243 number /= base;
2244 if (number == 0)
2245 break;
2246
2247 if ((flags & FLAGS_QUOTE) && TrioFollowedBySeparator(i + 1))
2248 {
2249 /*
2250 * We are building the number from the least significant
2251 * to the most significant digit, so we have to copy the
2252 * thousand separator backwards
2253 */
2254 length = internalThousandSeparatorLength;
2255 if (((int)(pointer - buffer) - length) > 0)
2256 {
2257 p = &internalThousandSeparator[length - 1];
2258 while (length-- > 0)
2259 *pointer-- = *p--;
2260 }
2261 }
2262 }
2263
2264 if (! ignoreNumber)
2265 {
2266 /* Adjust width */
2267 width -= (bufferend - pointer) - 1;
2268 }
2269
2270 /* Adjust precision */
2271 if (NO_PRECISION != precision)
2272 {
2273 precision -= (bufferend - pointer) - 1;
2274 if (precision < 0)
2275 precision = 0;
2276 flags |= FLAGS_NILPADDING;
2277 }
2278
2279 /* Calculate padding */
2280 count = (! ((flags & FLAGS_LEFTADJUST) || (precision == NO_PRECISION)))
2281 ? precision
2282 : 0;
2283
2284 /* Adjust width further */
2285 if (isNegative || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE))
2286 width--;
2287 if ((flags & FLAGS_ALTERNATIVE) && !isNumberZero)
2288 {
2289 switch (base)
2290 {
2291 case BASE_BINARY:
2292 case BASE_HEX:
2293 width -= 2;
2294 break;
2295 case BASE_OCTAL:
2296 if (!(flags & FLAGS_NILPADDING) || (count == 0))
2297 width--;
2298 break;
2299 default:
2300 break;
2301 }
2302 }
2303
2304 /* Output prefixes spaces if needed */
2305 if (! ((flags & FLAGS_LEFTADJUST) ||
2306 ((flags & FLAGS_NILPADDING) && (precision == NO_PRECISION))))
2307 {
2308 while (width-- > count)
2309 self->OutStream(self, CHAR_ADJUST);
2310 }
2311
2312 /* width has been adjusted for signs and alternatives */
2313 if (isNegative)
2314 self->OutStream(self, '-');
2315 else if (flags & FLAGS_SHOWSIGN)
2316 self->OutStream(self, '+');
2317 else if (flags & FLAGS_SPACE)
2318 self->OutStream(self, ' ');
2319
2320 /* Prefix is not written when the value is zero */
2321 if ((flags & FLAGS_ALTERNATIVE) && !isNumberZero)
2322 {
2323 switch (base)
2324 {
2325 case BASE_BINARY:
2326 self->OutStream(self, '0');
2327 self->OutStream(self, (flags & FLAGS_UPPER) ? 'B' : 'b');
2328 break;
2329
2330 case BASE_OCTAL:
2331 if (!(flags & FLAGS_NILPADDING) || (count == 0))
2332 self->OutStream(self, '0');
2333 break;
2334
2335 case BASE_HEX:
2336 self->OutStream(self, '0');
2337 self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x');
2338 break;
2339
2340 default:
2341 break;
2342 } /* switch base */
2343 }
2344
2345 /* Output prefixed zero padding if needed */
2346 if (flags & FLAGS_NILPADDING)
2347 {
2348 if (precision == NO_PRECISION)
2349 precision = width;
2350 while (precision-- > 0)
2351 {
2352 self->OutStream(self, '0');
2353 width--;
2354 }
2355 }
2356
2357 if (! ignoreNumber)
2358 {
2359 /* Output the number itself */
2360 while (*(++pointer))
2361 {
2362 self->OutStream(self, *pointer);
2363 }
2364 }
2365
2366 /* Output trailing spaces if needed */
2367 if (flags & FLAGS_LEFTADJUST)
2368 {
2369 while (width-- > 0)
2370 self->OutStream(self, CHAR_ADJUST);
2371 }
2372 }
2373
2374 /*************************************************************************
2375 * TrioWriteStringCharacter
2376 *
2377 * Description:
2378 * Output a single character of a string
2379 */
2380 TRIO_PRIVATE void
2381 TrioWriteStringCharacter
2382 TRIO_ARGS3((self, ch, flags),
2383 trio_class_t *self,
2384 int ch,
2385 trio_flags_t flags)
2386 {
2387 if (flags & FLAGS_ALTERNATIVE)
2388 {
2389 if (! isprint(ch))
2390 {
2391 /*
2392 * Non-printable characters are converted to C escapes or
2393 * \number, if no C escape exists.
2394 */
2395 self->OutStream(self, CHAR_BACKSLASH);
2396 switch (ch)
2397 {
2398 case '\007': self->OutStream(self, 'a'); break;
2399 case '\b': self->OutStream(self, 'b'); break;
2400 case '\f': self->OutStream(self, 'f'); break;
2401 case '\n': self->OutStream(self, 'n'); break;
2402 case '\r': self->OutStream(self, 'r'); break;
2403 case '\t': self->OutStream(self, 't'); break;
2404 case '\v': self->OutStream(self, 'v'); break;
2405 case '\\': self->OutStream(self, '\\'); break;
2406 default:
2407 self->OutStream(self, 'x');
2408 TrioWriteNumber(self, (trio_uintmax_t)ch,
2409 FLAGS_UNSIGNED | FLAGS_NILPADDING,
2410 2, 2, BASE_HEX);
2411 break;
2412 }
2413 }
2414 else if (ch == CHAR_BACKSLASH)
2415 {
2416 self->OutStream(self, CHAR_BACKSLASH);
2417 self->OutStream(self, CHAR_BACKSLASH);
2418 }
2419 else
2420 {
2421 self->OutStream(self, ch);
2422 }
2423 }
2424 else
2425 {
2426 self->OutStream(self, ch);
2427 }
2428 }
2429
2430 /*************************************************************************
2431 * TrioWriteString
2432 *
2433 * Description:
2434 * Output a string
2435 */
2436 TRIO_PRIVATE void
2437 TrioWriteString
2438 TRIO_ARGS5((self, string, flags, width, precision),
2439 trio_class_t *self,
2440 TRIO_CONST char *string,
2441 trio_flags_t flags,
2442 int width,
2443 int precision)
2444 {
2445 int length;
2446 int ch;
2447
2448 assert(VALID(self));
2449 assert(VALID(self->OutStream));
2450
2451 if (string == NULL)
2452 {
2453 string = internalNullString;
2454 length = sizeof(internalNullString) - 1;
2455 /* Disable quoting for the null pointer */
2456 flags &= (~FLAGS_QUOTE);
2457 width = 0;
2458 }
2459 else
2460 {
2461 length = trio_length(string);
2462 }
2463 if ((NO_PRECISION != precision) &&
2464 (precision < length))
2465 {
2466 length = precision;
2467 }
2468 width -= length;
2469
2470 if (flags & FLAGS_QUOTE)
2471 self->OutStream(self, CHAR_QUOTE);
2472
2473 if (! (flags & FLAGS_LEFTADJUST))
2474 {
2475 while (width-- > 0)
2476 self->OutStream(self, CHAR_ADJUST);
2477 }
2478
2479 while (length-- > 0)
2480 {
2481 /* The ctype parameters must be an unsigned char (or EOF) */
2482 ch = (int)((unsigned char)(*string++));
2483 TrioWriteStringCharacter(self, ch, flags);
2484 }
2485
2486 if (flags & FLAGS_LEFTADJUST)
2487 {
2488 while (width-- > 0)
2489 self->OutStream(self, CHAR_ADJUST);
2490 }
2491 if (flags & FLAGS_QUOTE)
2492 self->OutStream(self, CHAR_QUOTE);
2493 }
2494
2495 /*************************************************************************
2496 * TrioWriteWideStringCharacter
2497 *
2498 * Description:
2499 * Output a wide string as a multi-byte sequence
2500 */
2501 #if TRIO_WIDECHAR
2502 TRIO_PRIVATE int
2503 TrioWriteWideStringCharacter
2504 TRIO_ARGS4((self, wch, flags, width),
2505 trio_class_t *self,
2506 trio_wchar_t wch,
2507 trio_flags_t flags,
2508 int width)
2509 {
2510 int size;
2511 int i;
2512 int ch;
2513 char *string;
2514 char buffer[MB_LEN_MAX + 1];
2515
2516 if (width == NO_WIDTH)
2517 width = sizeof(buffer);
2518
2519 size = wctomb(buffer, wch);
2520 if ((size <= 0) || (size > width) || (buffer[0] == NIL))
2521 return 0;
2522
2523 string = buffer;
2524 i = size;
2525 while ((width >= i) && (width-- > 0) && (i-- > 0))
2526 {
2527 /* The ctype parameters must be an unsigned char (or EOF) */
2528 ch = (int)((unsigned char)(*string++));
2529 TrioWriteStringCharacter(self, ch, flags);
2530 }
2531 return size;
2532 }
2533 #endif /* TRIO_WIDECHAR */
2534
2535 /*************************************************************************
2536 * TrioWriteWideString
2537 *
2538 * Description:
2539 * Output a wide character string as a multi-byte string
2540 */
2541 #if TRIO_WIDECHAR
2542 TRIO_PRIVATE void
2543 TrioWriteWideString
2544 TRIO_ARGS5((self, wstring, flags, width, precision),
2545 trio_class_t *self,
2546 TRIO_CONST trio_wchar_t *wstring,
2547 trio_flags_t flags,
2548 int width,
2549 int precision)
2550 {
2551 int length;
2552 int size;
2553
2554 assert(VALID(self));
2555 assert(VALID(self->OutStream));
2556
2557 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
2558 (void)mblen(NULL, 0);
2559 #endif
2560
2561 if (wstring == NULL)
2562 {
2563 TrioWriteString(self, NULL, flags, width, precision);
2564 return;
2565 }
2566
2567 if (NO_PRECISION == precision)
2568 {
2569 length = INT_MAX;
2570 }
2571 else
2572 {
2573 length = precision;
2574 width -= length;
2575 }
2576
2577 if (flags & FLAGS_QUOTE)
2578 self->OutStream(self, CHAR_QUOTE);
2579
2580 if (! (flags & FLAGS_LEFTADJUST))
2581 {
2582 while (width-- > 0)
2583 self->OutStream(self, CHAR_ADJUST);
2584 }
2585
2586 while (length > 0)
2587 {
2588 size = TrioWriteWideStringCharacter(self, *wstring++, flags, length);
2589 if (size == 0)
2590 break; /* while */
2591 length -= size;
2592 }
2593
2594 if (flags & FLAGS_LEFTADJUST)
2595 {
2596 while (width-- > 0)
2597 self->OutStream(self, CHAR_ADJUST);
2598 }
2599 if (flags & FLAGS_QUOTE)
2600 self->OutStream(self, CHAR_QUOTE);
2601 }
2602 #endif /* TRIO_WIDECHAR */
2603
2604 /*************************************************************************
2605 * TrioWriteDouble
2606 *
2607 * http://wwwold.dkuug.dk/JTC1/SC22/WG14/www/docs/dr_211.htm
2608 *
2609 * "5.2.4.2.2 paragraph #4
2610 *
2611 * The accuracy [...] is implementation defined, as is the accuracy
2612 * of the conversion between floating-point internal representations
2613 * and string representations performed by the libray routine in
2614 * <stdio.h>"
2615 */
2616 /* FIXME: handle all instances of constant long-double number (L)
2617 * and *l() math functions.
2618 */
2619 TRIO_PRIVATE void
2620 TrioWriteDouble
2621 TRIO_ARGS6((self, number, flags, width, precision, base),
2622 trio_class_t *self,
2623 trio_long_double_t number,
2624 trio_flags_t flags,
2625 int width,
2626 int precision,
2627 int base)
2628 {
2629 trio_long_double_t integerNumber;
2630 trio_long_double_t fractionNumber;
2631 trio_long_double_t workNumber;
2632 int integerDigits;
2633 int fractionDigits;
2634 int exponentDigits;
2635 int baseDigits;
2636 int integerThreshold;
2637 int fractionThreshold;
2638 int expectedWidth;
2639 int exponent = 0;
2640 unsigned int uExponent = 0;
2641 int exponentBase;
2642 trio_long_double_t dblBase;
2643 trio_long_double_t dblIntegerBase;
2644 trio_long_double_t dblFractionBase;
2645 trio_long_double_t integerAdjust;
2646 trio_long_double_t fractionAdjust;
2647 BOOLEAN_T isNegative;
2648 BOOLEAN_T isExponentNegative = FALSE;
2649 BOOLEAN_T requireTwoDigitExponent;
2650 BOOLEAN_T isHex;
2651 TRIO_CONST char *digits;
2652 char *groupingPointer;
2653 int i;
2654 int index;
2655 BOOLEAN_T hasOnlyZeroes;
2656 int zeroes = 0;
2657 register int trailingZeroes;
2658 BOOLEAN_T keepTrailingZeroes;
2659 BOOLEAN_T keepDecimalPoint;
2660 trio_long_double_t epsilon;
2661
2662 assert(VALID(self));
2663 assert(VALID(self->OutStream));
2664 assert(((base >= MIN_BASE) && (base <= MAX_BASE)) || (base == NO_BASE));
2665
2666 /* Determine sign and look for special quantities */
2667 switch (trio_fpclassify_and_signbit(number, &isNegative))
2668 {
2669 case TRIO_FP_NAN:
2670 TrioWriteString(self,
2671 (flags & FLAGS_UPPER)
2672 ? NAN_UPPER
2673 : NAN_LOWER,
2674 flags, width, precision);
2675 return;
2676
2677 case TRIO_FP_INFINITE:
2678 if (isNegative)
2679 {
2680 /* Negative infinity */
2681 TrioWriteString(self,
2682 (flags & FLAGS_UPPER)
2683 ? "-" INFINITE_UPPER
2684 : "-" INFINITE_LOWER,
2685 flags, width, precision);
2686 return;
2687 }
2688 else
2689 {
2690 /* Positive infinity */
2691 TrioWriteString(self,
2692 (flags & FLAGS_UPPER)
2693 ? INFINITE_UPPER
2694 : INFINITE_LOWER,
2695 flags, width, precision);
2696 return;
2697 }
2698
2699 default:
2700 /* Finitude */
2701 break;
2702 }
2703
2704 /* Normal numbers */
2705 if (flags & FLAGS_LONGDOUBLE)
2706 {
2707 baseDigits = (base == 10)
2708 ? LDBL_DIG
2709 : (int)floor(LDBL_MANT_DIG / TrioLogarithmBase(base));
2710 epsilon = LDBL_EPSILON;
2711 }
2712 else if (flags & FLAGS_SHORT)
2713 {
2714 baseDigits = (base == BASE_DECIMAL)
2715 ? FLT_DIG
2716 : (int)floor(FLT_MANT_DIG / TrioLogarithmBase(base));
2717 epsilon = FLT_EPSILON;
2718 }
2719 else
2720 {
2721 baseDigits = (base == BASE_DECIMAL)
2722 ? DBL_DIG
2723 : (int)floor(DBL_MANT_DIG / TrioLogarithmBase(base));
2724 epsilon = DBL_EPSILON;
2725 }
2726
2727 digits = (flags & FLAGS_UPPER) ? internalDigitsUpper : internalDigitsLower;
2728 isHex = (base == BASE_HEX);
2729 if (base == NO_BASE)
2730 base = BASE_DECIMAL;
2731 dblBase = (trio_long_double_t)base;
2732 keepTrailingZeroes = !( (flags & FLAGS_ROUNDING) ||
2733 ( (flags & FLAGS_FLOAT_G) &&
2734 !(flags & FLAGS_ALTERNATIVE) ) );
2735
2736 if (flags & FLAGS_ROUNDING)
2737 precision = baseDigits;
2738
2739 if (precision == NO_PRECISION)
2740 {
2741 if (isHex)
2742 {
2743 keepTrailingZeroes = FALSE;
2744 precision = FLT_MANT_DIG;
2745 }
2746 else
2747 {
2748 precision = FLT_DIG;
2749 }
2750 }
2751
2752 if (isNegative)
2753 number = -number;
2754
2755 if (isHex)
2756 flags |= FLAGS_FLOAT_E;
2757
2758 if (flags & FLAGS_FLOAT_G)
2759 {
2760 if (precision == 0)
2761 precision = 1;
2762
2763 if ((number < 1.0E-4) || (number > powl(base,
2764 (trio_long_double_t)precision)))
2765 {
2766 /* Use scientific notation */
2767 flags |= FLAGS_FLOAT_E;
2768 }
2769 else if (number < 1.0)
2770 {
2771 /*
2772 * Use normal notation. If the integer part of the number is
2773 * zero, then adjust the precision to include leading fractional
2774 * zeros.
2775 */
2776 workNumber = TrioLogarithm(number, base);
2777 workNumber = TRIO_FABS(workNumber);
2778 if (workNumber - floorl(workNumber) < 0.001)
2779 workNumber--;
2780 zeroes = (int)floorl(workNumber);
2781 }
2782 }
2783
2784 if (flags & FLAGS_FLOAT_E)
2785 {
2786 /* Scale the number */
2787 workNumber = TrioLogarithm(number, base);
2788 if (trio_isinf(workNumber) == -1)
2789 {
2790 exponent = 0;
2791 /* Undo setting */
2792 if (flags & FLAGS_FLOAT_G)
2793 flags &= ~FLAGS_FLOAT_E;
2794 }
2795 else
2796 {
2797 exponent = (int)floorl(workNumber);
2798 number /= powl(dblBase, (trio_long_double_t)exponent);
2799 isExponentNegative = (exponent < 0);
2800 uExponent = (isExponentNegative) ? -exponent : exponent;
2801 if (isHex)
2802 uExponent *= 4; /* log16(2) */
2803 /* No thousand separators */
2804 flags &= ~FLAGS_QUOTE;
2805 }
2806 }
2807
2808 integerNumber = floorl(number);
2809 fractionNumber = number - integerNumber;
2810
2811 /*
2812 * Truncated number.
2813 *
2814 * Precision is number of significant digits for FLOAT_G
2815 * and number of fractional digits for others.
2816 */
2817 integerDigits = (integerNumber > epsilon)
2818 ? 1 + (int)TrioLogarithm(integerNumber, base)
2819 : 1;
2820 fractionDigits = ((flags & FLAGS_FLOAT_G) && (zeroes == 0))
2821 ? precision - integerDigits
2822 : zeroes + precision;
2823
2824 dblFractionBase = TrioPower(base, fractionDigits);
2825
2826 workNumber = number + 0.5 / dblFractionBase;
2827 if (floorl(number) != floorl(workNumber))
2828 {
2829 if (flags & FLAGS_FLOAT_E)
2830 {
2831 /* Adjust if number was rounded up one digit (ie. 0.99 to 1.00) */
2832 exponent++;
2833 isExponentNegative = (exponent < 0);
2834 uExponent = (isExponentNegative) ? -exponent : exponent;
2835 if (isHex)
2836 uExponent *= 4; /* log16(2) */
2837 workNumber = (number + 0.5 / dblFractionBase) / dblBase;
2838 integerNumber = floorl(workNumber);
2839 fractionNumber = workNumber - integerNumber;
2840 }
2841 else
2842 {
2843 /* Adjust if number was rounded up one digit (ie. 99 to 100) */
2844 integerNumber = floorl(number + 0.5);
2845 fractionNumber = 0.0;
2846 integerDigits = (integerNumber > epsilon)
2847 ? 1 + (int)TrioLogarithm(integerNumber, base)
2848 : 1;
2849 }
2850 }
2851
2852 /* Estimate accuracy */
2853 integerAdjust = fractionAdjust = 0.5;
2854 if (flags & FLAGS_ROUNDING)
2855 {
2856 if (integerDigits > baseDigits)
2857 {
2858 integerThreshold = baseDigits;
2859 fractionDigits = 0;
2860 dblFractionBase = 1.0;
2861 fractionThreshold = 0;
2862 precision = 0; /* Disable decimal-point */
2863 integerAdjust = TrioPower(base, integerDigits - integerThreshold - 1);
2864 fractionAdjust = 0.0;
2865 }
2866 else
2867 {
2868 integerThreshold = integerDigits;
2869 fractionThreshold = fractionDigits - integerThreshold;
2870 fractionAdjust = 1.0;
2871 }
2872 }
2873 else
2874 {
2875 integerThreshold = INT_MAX;
2876 fractionThreshold = INT_MAX;
2877 }
2878
2879 /*
2880 * Calculate expected width.
2881 * sign + integer part + thousands separators + decimal point
2882 * + fraction + exponent
2883 */
2884 fractionAdjust /= dblFractionBase;
2885 hasOnlyZeroes = (floorl((fractionNumber + fractionAdjust) * dblFractionBase) < epsilon);
2886 keepDecimalPoint = ( (flags & FLAGS_ALTERNATIVE) ||
2887 !((precision == 0) ||
2888 (!keepTrailingZeroes && hasOnlyZeroes)) );
2889 if (flags & FLAGS_FLOAT_E)
2890 {
2891 exponentDigits = (uExponent == 0)
2892 ? 1
2893 : (int)ceil(TrioLogarithm((double)(uExponent + 1),
2894 (isHex) ? 10.0 : base));
2895 }
2896 else
2897 exponentDigits = 0;
2898 requireTwoDigitExponent = ((base == BASE_DECIMAL) && (exponentDigits == 1));
2899
2900 expectedWidth = integerDigits + fractionDigits
2901 + (keepDecimalPoint
2902 ? internalDecimalPointLength
2903 : 0)
2904 + ((flags & FLAGS_QUOTE)
2905 ? TrioCalcThousandSeparatorLength(integerDigits)
2906 : 0);
2907 if (isNegative || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE))
2908 expectedWidth += sizeof("-") - 1;
2909 if (exponentDigits > 0)
2910 expectedWidth += exponentDigits +
2911 ((requireTwoDigitExponent ? sizeof("E+0") : sizeof("E+")) - 1);
2912 if (isHex)
2913 expectedWidth += sizeof("0X") - 1;
2914
2915 /* Output prefixing */
2916 if (flags & FLAGS_NILPADDING)
2917 {
2918 /* Leading zeros must be after sign */
2919 if (isNegative)
2920 self->OutStream(self, '-');
2921 else if (flags & FLAGS_SHOWSIGN)
2922 self->OutStream(self, '+');
2923 else if (flags & FLAGS_SPACE)
2924 self->OutStream(self, ' ');
2925 if (isHex)
2926 {
2927 self->OutStream(self, '0');
2928 self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x');
2929 }
2930 if (!(flags & FLAGS_LEFTADJUST))
2931 {
2932 for (i = expectedWidth; i < width; i++)
2933 {
2934 self->OutStream(self, '0');
2935 }
2936 }
2937 }
2938 else
2939 {
2940 /* Leading spaces must be before sign */
2941 if (!(flags & FLAGS_LEFTADJUST))
2942 {
2943 for (i = expectedWidth; i < width; i++)
2944 {
2945 self->OutStream(self, CHAR_ADJUST);
2946 }
2947 }
2948 if (isNegative)
2949 self->OutStream(self, '-');
2950 else if (flags & FLAGS_SHOWSIGN)
2951 self->OutStream(self, '+');
2952 else if (flags & FLAGS_SPACE)
2953 self->OutStream(self, ' ');
2954 if (isHex)
2955 {
2956 self->OutStream(self, '0');
2957 self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x');
2958 }
2959 }
2960
2961 /* Output the integer part and thousand separators */
2962 dblIntegerBase = 1.0 / TrioPower(base, integerDigits - 1);
2963 for (i = 0; i < integerDigits; i++)
2964 {
2965 workNumber = floorl(((integerNumber + integerAdjust) * dblIntegerBase));
2966 if (i > integerThreshold)
2967 {
2968 /* Beyond accuracy */
2969 self->OutStream(self, digits[0]);
2970 }
2971 else
2972 {
2973 self->OutStream(self, digits[(int)fmodl(workNumber, dblBase)]);
2974 }
2975 dblIntegerBase *= dblBase;
2976
2977 if (((flags & (FLAGS_FLOAT_E | FLAGS_QUOTE)) == FLAGS_QUOTE)
2978 && TrioFollowedBySeparator(integerDigits - i))
2979 {
2980 for (groupingPointer = internalThousandSeparator;
2981 *groupingPointer != NIL;
2982 groupingPointer++)
2983 {
2984 self->OutStream(self, *groupingPointer);
2985 }
2986 }
2987 }
2988
2989 /* Insert decimal point and build the fraction part */
2990 trailingZeroes = 0;
2991
2992 if (keepDecimalPoint)
2993 {
2994 if (internalDecimalPoint)
2995 {
2996 self->OutStream(self, internalDecimalPoint);
2997 }
2998 else
2999 {
3000 for (i = 0; i < internalDecimalPointLength; i++)
3001 {
3002 self->OutStream(self, internalDecimalPointString[i]);
3003 }
3004 }
3005 }
3006
3007 for (i = 0; i < fractionDigits; i++)
3008 {
3009 if ((integerDigits > integerThreshold) || (i > fractionThreshold))
3010 {
3011 /* Beyond accuracy */
3012 trailingZeroes++;
3013 }
3014 else
3015 {
3016 fractionNumber *= dblBase;
3017 fractionAdjust *= dblBase;
3018 workNumber = floorl(fractionNumber + fractionAdjust);
3019 fractionNumber -= workNumber;
3020 index = (int)fmodl(workNumber, dblBase);
3021 if (index == 0)
3022 {
3023 trailingZeroes++;
3024 }
3025 else
3026 {
3027 while (trailingZeroes > 0)
3028 {
3029 /* Not trailing zeroes after all */
3030 self->OutStream(self, digits[0]);
3031 trailingZeroes--;
3032 }
3033 self->OutStream(self, digits[index]);
3034 }
3035 }
3036 }
3037
3038 if (keepTrailingZeroes)
3039 {
3040 while (trailingZeroes > 0)
3041 {
3042 self->OutStream(self, digits[0]);
3043 trailingZeroes--;
3044 }
3045 }
3046
3047 /* Output exponent */
3048 if (exponentDigits > 0)
3049 {
3050 self->OutStream(self,
3051 isHex
3052 ? ((flags & FLAGS_UPPER) ? 'P' : 'p')
3053 : ((flags & FLAGS_UPPER) ? 'E' : 'e'));
3054 self->OutStream(self, (isExponentNegative) ? '-' : '+');
3055
3056 /* The exponent must contain at least two digits */
3057 if (requireTwoDigitExponent)
3058 self->OutStream(self, '0');
3059
3060 if (isHex)
3061 base = 10.0;
3062 exponentBase = (int)TrioPower(base, exponentDigits - 1);
3063 for (i = 0; i < exponentDigits; i++)
3064 {
3065 self->OutStream(self, digits[(uExponent / exponentBase) % base]);
3066 exponentBase /= base;
3067 }
3068 }
3069 /* Output trailing spaces */
3070 if (flags & FLAGS_LEFTADJUST)
3071 {
3072 for (i = expectedWidth; i < width; i++)
3073 {
3074 self->OutStream(self, CHAR_ADJUST);
3075 }
3076 }
3077 }
3078
3079 /*************************************************************************
3080 * TrioFormatProcess
3081 *
3082 * Description:
3083 * This is the main engine for formatting output
3084 */
3085 TRIO_PRIVATE int
3086 TrioFormatProcess
3087 TRIO_ARGS3((data, format, parameters),
3088 trio_class_t *data,
3089 TRIO_CONST char *format,
3090 trio_parameter_t *parameters)
3091 {
3092 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
3093 int charlen;
3094 #endif
3095 int i;
3096 TRIO_CONST char *string;
3097 trio_pointer_t pointer;
3098 trio_flags_t flags;
3099 int width;
3100 int precision;
3101 int base;
3102 int index;
3103
3104 index = 0;
3105 i = 0;
3106 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
3107 (void)mblen(NULL, 0);
3108 #endif
3109
3110 while (format[index])
3111 {
3112 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
3113 if (! isascii(format[index]))
3114 {
3115 charlen = mblen(&format[index], MB_LEN_MAX);
3116 /*
3117 * Only valid multibyte characters are handled here. Invalid
3118 * multibyte characters (charlen == -1) are handled as normal
3119 * characters.
3120 */
3121 if (charlen != -1)
3122 {
3123 while (charlen-- > 0)
3124 {
3125 data->OutStream(data, format[index++]);
3126 }
3127 continue; /* while characters left in formatting string */
3128 }
3129 }
3130 #endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */
3131 if (CHAR_IDENTIFIER == format[index])
3132 {
3133 if (CHAR_IDENTIFIER == format[index + 1])
3134 {
3135 data->OutStream(data, CHAR_IDENTIFIER);
3136 index += 2;
3137 }
3138 else
3139 {
3140 /* Skip the parameter entries */
3141 while (parameters[i].type == FORMAT_PARAMETER)
3142 i++;
3143
3144 flags = parameters[i].flags;
3145
3146 /* Find width */
3147 width = parameters[i].width;
3148 if (flags & FLAGS_WIDTH_PARAMETER)
3149 {
3150 /* Get width from parameter list */
3151 width = (int)parameters[width].data.number.as_signed;
3152 if (width < 0)
3153 {
3154 /*
3155 * A negative width is the same as the - flag and
3156 * a positive width.
3157 */
3158 flags |= FLAGS_LEFTADJUST;
3159 flags &= ~FLAGS_NILPADDING;
3160 width = -width;
3161 }
3162 }
3163
3164 /* Find precision */
3165 if (flags & FLAGS_PRECISION)
3166 {
3167 precision = parameters[i].precision;
3168 if (flags & FLAGS_PRECISION_PARAMETER)
3169 {
3170 /* Get precision from parameter list */
3171 precision = (int)parameters[precision].data.number.as_signed;
3172 if (precision < 0)
3173 {
3174 /*
3175 * A negative precision is the same as no
3176 * precision
3177 */
3178 precision = NO_PRECISION;
3179 }
3180 }
3181 }
3182 else
3183 {
3184 precision = NO_PRECISION;
3185 }
3186
3187 /* Find base */
3188 base = parameters[i].base;
3189 if (flags & FLAGS_BASE_PARAMETER)
3190 {
3191 /* Get base from parameter list */
3192 base = (int)parameters[base].data.number.as_signed;
3193 }
3194
3195 switch (parameters[i].type)
3196 {
3197 case FORMAT_CHAR:
3198 if (flags & FLAGS_QUOTE)
3199 data->OutStream(data, CHAR_QUOTE);
3200 if (! (flags & FLAGS_LEFTADJUST))
3201 {
3202 while (--width > 0)
3203 data->OutStream(data, CHAR_ADJUST);
3204 }
3205 #if TRIO_WIDECHAR
3206 if (flags & FLAGS_WIDECHAR)
3207 {
3208 TrioWriteWideStringCharacter(data,
3209 (trio_wchar_t)parameters[i].data.number.as_signed,
3210 flags,
3211 NO_WIDTH);
3212 }
3213 else
3214 #endif
3215 {
3216 TrioWriteStringCharacter(data,
3217 (int)parameters[i].data.number.as_signed,
3218 flags);
3219 }
3220
3221 if (flags & FLAGS_LEFTADJUST)
3222 {
3223 while(--width > 0)
3224 data->OutStream(data, CHAR_ADJUST);
3225 }
3226 if (flags & FLAGS_QUOTE)
3227 data->OutStream(data, CHAR_QUOTE);
3228
3229 break; /* FORMAT_CHAR */
3230
3231 case FORMAT_INT:
3232 TrioWriteNumber(data,
3233 parameters[i].data.number.as_unsigned,
3234 flags,
3235 width,
3236 precision,
3237 base);
3238
3239 break; /* FORMAT_INT */
3240
3241 case FORMAT_DOUBLE:
3242 TrioWriteDouble(data,
3243 parameters[i].data.longdoubleNumber,
3244 flags,
3245 width,
3246 precision,
3247 base);
3248 break; /* FORMAT_DOUBLE */
3249
3250 case FORMAT_STRING:
3251 #if TRIO_WIDECHAR
3252 if (flags & FLAGS_WIDECHAR)
3253 {
3254 TrioWriteWideString(data,
3255 parameters[i].data.wstring,
3256 flags,
3257 width,
3258 precision);
3259 }
3260 else
3261 #endif
3262 {
3263 TrioWriteString(data,
3264 parameters[i].data.string,
3265 flags,
3266 width,
3267 precision);
3268 }
3269 break; /* FORMAT_STRING */
3270
3271 case FORMAT_POINTER:
3272 {
3273 trio_reference_t reference;
3274
3275 reference.data = data;
3276 reference.parameter = &parameters[i];
3277 trio_print_pointer(&reference, parameters[i].data.pointer);
3278 }
3279 break; /* FORMAT_POINTER */
3280
3281 case FORMAT_COUNT:
3282 pointer = parameters[i].data.pointer;
3283 if (NULL != pointer)
3284 {
3285 /*
3286 * C99 paragraph 7.19.6.1.8 says "the number of
3287 * characters written to the output stream so far by
3288 * this call", which is data->committed
3289 */
3290 #if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
3291 if (flags & FLAGS_SIZE_T)
3292 *(size_t *)pointer = (size_t)data->committed;
3293 else
3294 #endif
3295 #if defined(QUALIFIER_PTRDIFF_T)
3296 if (flags & FLAGS_PTRDIFF_T)
3297 *(ptrdiff_t *)pointer = (ptrdiff_t)data->committed;
3298 else
3299 #endif
3300 #if defined(QUALIFIER_INTMAX_T)
3301 if (flags & FLAGS_INTMAX_T)
3302 *(trio_intmax_t *)pointer = (trio_intmax_t)data->committed;
3303 else
3304 #endif
3305 if (flags & FLAGS_QUAD)
3306 {
3307 *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)data->committed;
3308 }
3309 else if (flags & FLAGS_LONG)
3310 {
3311 *(long int *)pointer = (long int)data->committed;
3312 }
3313 else if (flags & FLAGS_SHORT)
3314 {
3315 *(short int *)pointer = (short int)data->committed;
3316 }
3317 else
3318 {
3319 *(int *)pointer = (int)data->committed;
3320 }
3321 }
3322 break; /* FORMAT_COUNT */
3323
3324 case FORMAT_PARAMETER:
3325 break; /* FORMAT_PARAMETER */
3326
3327 #if defined(FORMAT_ERRNO)
3328 case FORMAT_ERRNO:
3329 string = trio_error(parameters[i].data.errorNumber);
3330 if (string)
3331 {
3332 TrioWriteString(data,
3333 string,
3334 flags,
3335 width,
3336 precision);
3337 }
3338 else
3339 {
3340 data->OutStream(data, '#');
3341 TrioWriteNumber(data,
3342 (trio_uintmax_t)parameters[i].data.errorNumber,
3343 flags,
3344 width,
3345 precision,
3346 BASE_DECIMAL);
3347 }
3348 break; /* FORMAT_ERRNO */
3349 #endif /* defined(FORMAT_ERRNO) */
3350
3351 #if defined(FORMAT_USER_DEFINED)
3352 case FORMAT_USER_DEFINED:
3353 {
3354 trio_reference_t reference;
3355 trio_userdef_t *def = NULL;
3356
3357 if (parameters[i].user_name[0] == NIL)
3358 {
3359 /* Use handle */
3360 if ((i > 0) ||
3361 (parameters[i - 1].type == FORMAT_PARAMETER))
3362 def = (trio_userdef_t *)parameters[i - 1].data.pointer;
3363 }
3364 else
3365 {
3366 /* Look up namespace */
3367 def = TrioFindNamespace(parameters[i].user_name, NULL);
3368 }
3369 if (def) {
3370 reference.data = data;
3371 reference.parameter = &parameters[i];
3372 def->callback(&reference);
3373 }
3374 }
3375 break;
3376 #endif /* defined(FORMAT_USER_DEFINED) */
3377
3378 default:
3379 break;
3380 } /* switch parameter type */
3381
3382 /* Prepare for next */
3383 index = parameters[i].indexAfterSpecifier;
3384 i++;
3385 }
3386 }
3387 else /* not identifier */
3388 {
3389 data->OutStream(data, format[index++]);
3390 }
3391 }
3392 return data->processed;
3393 }
3394
3395 /*************************************************************************
3396 * TrioFormatRef
3397 */
3398 TRIO_PRIVATE int
3399 TrioFormatRef
3400 TRIO_ARGS4((reference, format, arglist, argarray),
3401 trio_reference_t *reference,
3402 TRIO_CONST char *format,
3403 TRIO_VA_LIST_PTR arglist,
3404 trio_pointer_t *argarray)
3405 {
3406 int status;
3407 trio_parameter_t parameters[MAX_PARAMETERS];
3408
3409 status = TrioParse(TYPE_PRINT, format, parameters, arglist, argarray);
3410 if (status < 0)
3411 return status;
3412
3413 status = TrioFormatProcess(reference->data, format, parameters);
3414 if (reference->data->error != 0)
3415 {
3416 status = reference->data->error;
3417 }
3418 return status;
3419 }
3420
3421 /*************************************************************************
3422 * TrioFormat
3423 */
3424 TRIO_PRIVATE int
3425 TrioFormat
3426 TRIO_ARGS6((destination, destinationSize, OutStream, format, arglist, argarray),
3427 trio_pointer_t destination,
3428 size_t destinationSize,
3429 void (*OutStream) TRIO_PROTO((trio_class_t *, int)),
3430 TRIO_CONST char *format,
3431 TRIO_VA_LIST_PTR arglist,
3432 trio_pointer_t *argarray)
3433 {
3434 int status;
3435 trio_class_t data;
3436 trio_parameter_t parameters[MAX_PARAMETERS];
3437
3438 assert(VALID(OutStream));
3439 assert(VALID(format));
3440
3441 memset(&data, 0, sizeof(data));
3442 data.OutStream = OutStream;
3443 data.location = destination;
3444 data.max = destinationSize;
3445 data.error = 0;
3446
3447 #if defined(USE_LOCALE)
3448 if (NULL == internalLocaleValues)
3449 {
3450 TrioSetLocale();
3451 }
3452 #endif
3453
3454 status = TrioParse(TYPE_PRINT, format, parameters, arglist, argarray);
3455 if (status < 0)
3456 return status;
3457
3458 status = TrioFormatProcess(&data, format, parameters);
3459 if (data.error != 0)
3460 {
3461 status = data.error;
3462 }
3463 return status;
3464 }
3465
3466 /*************************************************************************
3467 * TrioOutStreamFile
3468 */
3469 TRIO_PRIVATE void
3470 TrioOutStreamFile
3471 TRIO_ARGS2((self, output),
3472 trio_class_t *self,
3473 int output)
3474 {
3475 FILE *file;
3476
3477 assert(VALID(self));
3478 assert(VALID(self->location));
3479
3480 file = (FILE *)self->location;
3481 self->processed++;
3482 if (fputc(output, file) == EOF)
3483 {
3484 self->error = TRIO_ERROR_RETURN(TRIO_EOF, 0);
3485 }
3486 else
3487 {
3488 self->committed++;
3489 }
3490 }
3491
3492 /*************************************************************************
3493 * TrioOutStreamFileDescriptor
3494 */
3495 TRIO_PRIVATE void
3496 TrioOutStreamFileDescriptor
3497 TRIO_ARGS2((self, output),
3498 trio_class_t *self,
3499 int output)
3500 {
3501 int fd;
3502 char ch;
3503
3504 assert(VALID(self));
3505
3506 fd = *((int *)self->location);
3507 ch = (char)output;
3508 self->processed++;
3509 if (write(fd, &ch, sizeof(char)) == -1)
3510 {
3511 self->error = TRIO_ERROR_RETURN(TRIO_ERRNO, 0);
3512 }
3513 else
3514 {
3515 self->committed++;
3516 }
3517 }
3518
3519 /*************************************************************************
3520 * TrioOutStreamCustom
3521 */
3522 TRIO_PRIVATE void
3523 TrioOutStreamCustom
3524 TRIO_ARGS2((self, output),
3525 trio_class_t *self,
3526 int output)
3527 {
3528 int status;
3529 trio_custom_t *data;
3530
3531 assert(VALID(self));
3532 assert(VALID(self->location));
3533
3534 data = (trio_custom_t *)self->location;
3535 if (data->stream.out)
3536 {
3537 status = (data->stream.out)(data->closure, output);
3538 if (status >= 0)
3539 {
3540 self->committed++;
3541 }
3542 else
3543 {
3544 if (self->error == 0)
3545 {
3546 self->error = TRIO_ERROR_RETURN(TRIO_ECUSTOM, -status);
3547 }
3548 }
3549 }
3550 self->processed++;
3551 }
3552
3553 /*************************************************************************
3554 * TrioOutStreamString
3555 */
3556 TRIO_PRIVATE void
3557 TrioOutStreamString
3558 TRIO_ARGS2((self, output),
3559 trio_class_t *self,
3560 int output)
3561 {
3562 char **buffer;
3563
3564 assert(VALID(self));
3565 assert(VALID(self->location));
3566
3567 buffer = (char **)self->location;
3568 **buffer = (char)output;
3569 (*buffer)++;
3570 self->processed++;
3571 self->committed++;
3572 }
3573
3574 /*************************************************************************
3575 * TrioOutStreamStringMax
3576 */
3577 TRIO_PRIVATE void
3578 TrioOutStreamStringMax
3579 TRIO_ARGS2((self, output),
3580 trio_class_t *self,
3581 int output)
3582 {
3583 char **buffer;
3584
3585 assert(VALID(self));
3586 assert(VALID(self->location));
3587
3588 buffer = (char **)self->location;
3589
3590 if (self->processed < self->max)
3591 {
3592 **buffer = (char)output;
3593 (*buffer)++;
3594 self->committed++;
3595 }
3596 self->processed++;
3597 }
3598
3599 /*************************************************************************
3600 * TrioOutStreamStringDynamic
3601 */
3602 TRIO_PRIVATE void
3603 TrioOutStreamStringDynamic
3604 TRIO_ARGS2((self, output),
3605 trio_class_t *self,
3606 int output)
3607 {
3608 assert(VALID(self));
3609 assert(VALID(self->location));
3610
3611 if (self->error == 0)
3612 {
3613 trio_xstring_append_char((trio_string_t *)self->location,
3614 (char)output);
3615 self->committed++;
3616 }
3617 /* The processed variable must always be increased */
3618 self->processed++;
3619 }
3620
3621 /*************************************************************************
3622 *
3623 * Formatted printing functions
3624 *
3625 ************************************************************************/
3626
3627 #if defined(TRIO_DOCUMENTATION)
3628 # include "doc/doc_printf.h"
3629 #endif
3630 /** @addtogroup Printf
3631 @{
3632 */
3633
3634 /*************************************************************************
3635 * printf
3636 */
3637
3638 /**
3639 Print to standard output stream.
3640
3641 @param format Formatting string.
3642 @param ... Arguments.
3643 @return Number of printed characters.
3644 */
3645 TRIO_PUBLIC int
3646 trio_printf
3647 TRIO_VARGS2((format, va_alist),
3648 TRIO_CONST char *format,
3649 TRIO_VA_DECL)
3650 {
3651 int status;
3652 va_list args;
3653
3654 assert(VALID(format));
3655
3656 TRIO_VA_START(args, format);
3657 status = TrioFormat(stdout, 0, TrioOutStreamFile, format, TRIO_VA_LIST_ADDR(args), NULL);
3658 TRIO_VA_END(args);
3659 return status;
3660 }
3661
3662 /**
3663 Print to standard output stream.
3664
3665 @param format Formatting string.
3666 @param args Arguments.
3667 @return Number of printed characters.
3668 */
3669 TRIO_PUBLIC int
3670 trio_vprintf
3671 TRIO_ARGS2((format, args),
3672 TRIO_CONST char *format,
3673 va_list args)
3674 {
3675 assert(VALID(format));
3676
3677 return TrioFormat(stdout, 0, TrioOutStreamFile, format, TRIO_VA_LIST_ADDR(args), NULL);
3678 }
3679
3680 /**
3681 Print to standard output stream.
3682
3683 @param format Formatting string.
3684 @param args Arguments.
3685 @return Number of printed characters.
3686 */
3687 TRIO_PUBLIC int
3688 trio_printfv
3689 TRIO_ARGS2((format, args),
3690 TRIO_CONST char *format,
3691 trio_pointer_t * args)
3692 {
3693 assert(VALID(format));
3694
3695 return TrioFormat(stdout, 0, TrioOutStreamFile, format, NULL, args);
3696 }
3697
3698 /*************************************************************************
3699 * fprintf
3700 */
3701
3702 /**
3703 Print to file.
3704
3705 @param file File pointer.
3706 @param format Formatting string.
3707 @param ... Arguments.
3708 @return Number of printed characters.
3709 */
3710 TRIO_PUBLIC int
3711 trio_fprintf
3712 TRIO_VARGS3((file, format, va_alist),
3713 FILE *file,
3714 TRIO_CONST char *format,
3715 TRIO_VA_DECL)
3716 {
3717 int status;
3718 va_list args;
3719
3720 assert(VALID(file));
3721 assert(VALID(format));
3722
3723 TRIO_VA_START(args, format);
3724 status = TrioFormat(file, 0, TrioOutStreamFile, format, TRIO_VA_LIST_ADDR(args), NULL);
3725 TRIO_VA_END(args);
3726 return status;
3727 }
3728
3729 /**
3730 Print to file.
3731
3732 @param file File pointer.
3733 @param format Formatting string.
3734 @param args Arguments.
3735 @return Number of printed characters.
3736 */
3737 TRIO_PUBLIC int
3738 trio_vfprintf
3739 TRIO_ARGS3((file, format, args),
3740 FILE *file,
3741 TRIO_CONST char *format,
3742 va_list args)
3743 {
3744 assert(VALID(file));
3745 assert(VALID(format));
3746
3747 return TrioFormat(file, 0, TrioOutStreamFile, format, TRIO_VA_LIST_ADDR(args), NULL);
3748 }
3749
3750 /**
3751 Print to file.
3752
3753 @param file File pointer.
3754 @param format Formatting string.
3755 @param args Arguments.
3756 @return Number of printed characters.
3757 */
3758 TRIO_PUBLIC int
3759 trio_fprintfv
3760 TRIO_ARGS3((file, format, args),
3761 FILE *file,
3762 TRIO_CONST char *format,
3763 trio_pointer_t * args)
3764 {
3765 assert(VALID(file));
3766 assert(VALID(format));
3767
3768 return TrioFormat(file, 0, TrioOutStreamFile, format, NULL, args);
3769 }
3770
3771 /*************************************************************************
3772 * dprintf
3773 */
3774
3775 /**
3776 Print to file descriptor.
3777
3778 @param fd File descriptor.
3779 @param format Formatting string.
3780 @param ... Arguments.
3781 @return Number of printed characters.
3782 */
3783 TRIO_PUBLIC int
3784 trio_dprintf
3785 TRIO_VARGS3((fd, format, va_alist),
3786 int fd,
3787 TRIO_CONST char *format,
3788 TRIO_VA_DECL)
3789 {
3790 int status;
3791 va_list args;
3792
3793 assert(VALID(format));
3794
3795 TRIO_VA_START(args, format);
3796 status = TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, TRIO_VA_LIST_ADDR(args), NULL);
3797 TRIO_VA_END(args);
3798 return status;
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 */
3809 TRIO_PUBLIC int
3810 trio_vdprintf
3811 TRIO_ARGS3((fd, format, args),
3812 int fd,
3813 TRIO_CONST char *format,
3814 va_list args)
3815 {
3816 assert(VALID(format));
3817
3818 return TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, TRIO_VA_LIST_ADDR(args), NULL);
3819 }
3820
3821 /**
3822 Print to file descriptor.
3823
3824 @param fd File descriptor.
3825 @param format Formatting string.
3826 @param args Arguments.
3827 @return Number of printed characters.
3828 */
3829 TRIO_PUBLIC int
3830 trio_dprintfv
3831 TRIO_ARGS3((fd, format, args),
3832 int fd,
3833 TRIO_CONST char *format,
3834 trio_pointer_t *args)
3835 {
3836 assert(VALID(format));
3837
3838 return TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, NULL, args);
3839 }
3840
3841 /*************************************************************************
3842 * cprintf
3843 */
3844 TRIO_PUBLIC int
3845 trio_cprintf
3846 TRIO_VARGS4((stream, closure, format, va_alist),
3847 trio_outstream_t stream,
3848 trio_pointer_t closure,
3849 TRIO_CONST char *format,
3850 TRIO_VA_DECL)
3851 {
3852 int status;
3853 va_list args;
3854 trio_custom_t data;
3855
3856 assert(VALID(stream));
3857 assert(VALID(format));
3858
3859 TRIO_VA_START(args, format);
3860 data.stream.out = stream;
3861 data.closure = closure;
3862 status = TrioFormat(&data, 0, TrioOutStreamCustom, format, TRIO_VA_LIST_ADDR(args), NULL);
3863 TRIO_VA_END(args);
3864 return status;
3865 }
3866
3867 TRIO_PUBLIC int
3868 trio_vcprintf
3869 TRIO_ARGS4((stream, closure, format, args),
3870 trio_outstream_t stream,
3871 trio_pointer_t closure,
3872 TRIO_CONST char *format,
3873 va_list args)
3874 {
3875 trio_custom_t data;
3876
3877 assert(VALID(stream));
3878 assert(VALID(format));
3879
3880 data.stream.out = stream;
3881 data.closure = closure;
3882 return TrioFormat(&data, 0, TrioOutStreamCustom, format, TRIO_VA_LIST_ADDR(args), NULL);
3883 }
3884
3885 TRIO_PUBLIC int
3886 trio_cprintfv
3887 TRIO_ARGS4((stream, closure, format, args),
3888 trio_outstream_t stream,
3889 trio_pointer_t closure,
3890 TRIO_CONST char *format,
3891 void **args)
3892 {
3893 trio_custom_t data;
3894
3895 assert(VALID(stream));
3896 assert(VALID(format));
3897
3898 data.stream.out = stream;
3899 data.closure = closure;
3900 return TrioFormat(&data, 0, TrioOutStreamCustom, format, NULL, args);
3901 }
3902
3903 /*************************************************************************
3904 * sprintf
3905 */
3906
3907 /**
3908 Print to string.
3909
3910 @param buffer Output string.
3911 @param format Formatting string.
3912 @param ... Arguments.
3913 @return Number of printed characters.
3914 */
3915 TRIO_PUBLIC int
3916 trio_sprintf
3917 TRIO_VARGS3((buffer, format, va_alist),
3918 char *buffer,
3919 TRIO_CONST char *format,
3920 TRIO_VA_DECL)
3921 {
3922 int status;
3923 va_list args;
3924
3925 assert(VALID(buffer));
3926 assert(VALID(format));
3927
3928 TRIO_VA_START(args, format);
3929 status = TrioFormat(&buffer, 0, TrioOutStreamString, format, TRIO_VA_LIST_ADDR(args), NULL);
3930 *buffer = NIL; /* Terminate with NIL character */
3931 TRIO_VA_END(args);
3932 return status;
3933 }
3934
3935 /**
3936 Print to string.
3937
3938 @param buffer Output string.
3939 @param format Formatting string.
3940 @param args Arguments.
3941 @return Number of printed characters.
3942 */
3943 TRIO_PUBLIC int
3944 trio_vsprintf
3945 TRIO_ARGS3((buffer, format, args),
3946 char *buffer,
3947 TRIO_CONST char *format,
3948 va_list args)
3949 {
3950 int status;
3951
3952 assert(VALID(buffer));
3953 assert(VALID(format));
3954
3955 status = TrioFormat(&buffer, 0, TrioOutStreamString, format, TRIO_VA_LIST_ADDR(args), NULL);
3956 *buffer = NIL;
3957 return status;
3958 }
3959
3960 /**
3961 Print to string.
3962
3963 @param buffer Output string.
3964 @param format Formatting string.
3965 @param args Arguments.
3966 @return Number of printed characters.
3967 */
3968 TRIO_PUBLIC int
3969 trio_sprintfv
3970 TRIO_ARGS3((buffer, format, args),
3971 char *buffer,
3972 TRIO_CONST char *format,
3973 trio_pointer_t *args)
3974 {
3975 int status;
3976
3977 assert(VALID(buffer));
3978 assert(VALID(format));
3979
3980 status = TrioFormat(&buffer, 0, TrioOutStreamString, format, NULL, args);
3981 *buffer = NIL;
3982 return status;
3983 }
3984
3985 /*************************************************************************
3986 * snprintf
3987 */
3988
3989 /**
3990 Print at most @p max characters to string.
3991
3992 @param buffer Output string.
3993 @param max Maximum number of characters to print.
3994 @param format Formatting string.
3995 @param ... Arguments.
3996 @return Number of printed characters.
3997 */
3998 TRIO_PUBLIC int
3999 trio_snprintf
4000 TRIO_VARGS4((buffer, max, format, va_alist),
4001 char *buffer,
4002 size_t max,
4003 TRIO_CONST char *format,
4004 TRIO_VA_DECL)
4005 {
4006 int status;
4007 va_list args;
4008
4009 assert(VALID(buffer));
4010 assert(VALID(format));
4011
4012 TRIO_VA_START(args, format);
4013 status = TrioFormat(&buffer, max > 0 ? max - 1 : 0,
4014 TrioOutStreamStringMax, format, TRIO_VA_LIST_ADDR(args), NULL);
4015 if (max > 0)
4016 *buffer = NIL;
4017 TRIO_VA_END(args);
4018 return status;
4019 }
4020
4021 /**
4022 Print at most @p max characters to string.
4023
4024 @param buffer Output string.
4025 @param max Maximum number of characters to print.
4026 @param format Formatting string.
4027 @param args Arguments.
4028 @return Number of printed characters.
4029 */
4030 TRIO_PUBLIC int
4031 trio_vsnprintf
4032 TRIO_ARGS4((buffer, max, format, args),
4033 char *buffer,
4034 size_t max,
4035 TRIO_CONST char *format,
4036 va_list args)
4037 {
4038 int status;
4039
4040 assert(VALID(buffer));
4041 assert(VALID(format));
4042
4043 status = TrioFormat(&buffer, max > 0 ? max - 1 : 0,
4044 TrioOutStreamStringMax, format, TRIO_VA_LIST_ADDR(args), NULL);
4045 if (max > 0)
4046 *buffer = NIL;
4047 return status;
4048 }
4049
4050 /**
4051 Print at most @p max characters to string.
4052
4053 @param buffer Output string.
4054 @param max Maximum number of characters to print.
4055 @param format Formatting string.
4056 @param args Arguments.
4057 @return Number of printed characters.
4058 */
4059 TRIO_PUBLIC int
4060 trio_snprintfv
4061 TRIO_ARGS4((buffer, max, format, args),
4062 char *buffer,
4063 size_t max,
4064 TRIO_CONST char *format,
4065 trio_pointer_t *args)
4066 {
4067 int status;
4068
4069 assert(VALID(buffer));
4070 assert(VALID(format));
4071
4072 status = TrioFormat(&buffer, max > 0 ? max - 1 : 0,
4073 TrioOutStreamStringMax, format, NULL, args);
4074 if (max > 0)
4075 *buffer = NIL;
4076 return status;
4077 }
4078
4079 /*************************************************************************
4080 * snprintfcat
4081 * Appends the new string to the buffer string overwriting the '\0'
4082 * character at the end of buffer.
4083 */
4084 TRIO_PUBLIC int
4085 trio_snprintfcat
4086 TRIO_VARGS4((buffer, max, format, va_alist),
4087 char *buffer,
4088 size_t max,
4089 TRIO_CONST char *format,
4090 TRIO_VA_DECL)
4091 {
4092 int status;
4093 va_list args;
4094 size_t buf_len;
4095
4096 TRIO_VA_START(args, format);
4097
4098 assert(VALID(buffer));
4099 assert(VALID(format));
4100
4101 buf_len = trio_length(buffer);
4102 buffer = &buffer[buf_len];
4103
4104 status = TrioFormat(&buffer, max - 1 - buf_len,
4105 TrioOutStreamStringMax, format, TRIO_VA_LIST_ADDR(args), NULL);
4106 TRIO_VA_END(args);
4107 *buffer = NIL;
4108 return status;
4109 }
4110
4111 TRIO_PUBLIC int
4112 trio_vsnprintfcat
4113 TRIO_ARGS4((buffer, max, format, args),
4114 char *buffer,
4115 size_t max,
4116 TRIO_CONST char *format,
4117 va_list args)
4118 {
4119 int status;
4120 size_t buf_len;
4121
4122 assert(VALID(buffer));
4123 assert(VALID(format));
4124
4125 buf_len = trio_length(buffer);
4126 buffer = &buffer[buf_len];
4127 status = TrioFormat(&buffer, max - 1 - buf_len,
4128 TrioOutStreamStringMax, format, TRIO_VA_LIST_ADDR(args), NULL);
4129 *buffer = NIL;
4130 return status;
4131 }
4132
4133 /*************************************************************************
4134 * trio_aprintf
4135 */
4136
4137 /* Deprecated */
4138 TRIO_PUBLIC char *
4139 trio_aprintf
4140 TRIO_VARGS2((format, va_alist),
4141 TRIO_CONST char *format,
4142 TRIO_VA_DECL)
4143 {
4144 va_list args;
4145 trio_string_t *info;
4146 char *result = NULL;
4147
4148 assert(VALID(format));
4149
4150 info = trio_xstring_duplicate("");
4151 if (info)
4152 {
4153 TRIO_VA_START(args, format);
4154 (void)TrioFormat(info, 0, TrioOutStreamStringDynamic,
4155 format, TRIO_VA_LIST_ADDR(args), NULL);
4156 TRIO_VA_END(args);
4157
4158 trio_string_terminate(info);
4159 result = trio_string_extract(info);
4160 trio_string_destroy(info);
4161 }
4162 return result;
4163 }
4164
4165 /* Deprecated */
4166 TRIO_PUBLIC char *
4167 trio_vaprintf
4168 TRIO_ARGS2((format, args),
4169 TRIO_CONST char *format,
4170 va_list args)
4171 {
4172 trio_string_t *info;
4173 char *result = NULL;
4174
4175 assert(VALID(format));
4176
4177 info = trio_xstring_duplicate("");
4178 if (info)
4179 {
4180 (void)TrioFormat(info, 0, TrioOutStreamStringDynamic,
4181 format, TRIO_VA_LIST_ADDR(args), NULL);
4182 trio_string_terminate(info);
4183 result = trio_string_extract(info);
4184 trio_string_destroy(info);
4185 }
4186 return result;
4187 }
4188
4189 TRIO_PUBLIC int
4190 trio_asprintf
4191 TRIO_VARGS3((result, format, va_alist),
4192 char **result,
4193 TRIO_CONST char *format,
4194 TRIO_VA_DECL)
4195 {
4196 va_list args;
4197 int status;
4198 trio_string_t *info;
4199
4200 assert(VALID(format));
4201
4202 *result = NULL;
4203
4204 info = trio_xstring_duplicate("");
4205 if (info == NULL)
4206 {
4207 status = TRIO_ERROR_RETURN(TRIO_ENOMEM, 0);
4208 }
4209 else
4210 {
4211 TRIO_VA_START(args, format);
4212 status = TrioFormat(info, 0, TrioOutStreamStringDynamic,
4213 format, TRIO_VA_LIST_ADDR(args), NULL);
4214 TRIO_VA_END(args);
4215 if (status >= 0)
4216 {
4217 trio_string_terminate(info);
4218 *result = trio_string_extract(info);
4219 }
4220 trio_string_destroy(info);
4221 }
4222 return status;
4223 }
4224
4225 TRIO_PUBLIC int
4226 trio_vasprintf
4227 TRIO_ARGS3((result, format, args),
4228 char **result,
4229 TRIO_CONST char *format,
4230 va_list args)
4231 {
4232 int status;
4233 trio_string_t *info;
4234
4235 assert(VALID(format));
4236
4237 *result = NULL;
4238
4239 info = trio_xstring_duplicate("");
4240 if (info == NULL)
4241 {
4242 status = TRIO_ERROR_RETURN(TRIO_ENOMEM, 0);
4243 }
4244 else
4245 {
4246 status = TrioFormat(info, 0, TrioOutStreamStringDynamic,
4247 format, TRIO_VA_LIST_ADDR(args), NULL);
4248 if (status >= 0)
4249 {
4250 trio_string_terminate(info);
4251 *result = trio_string_extract(info);
4252 }
4253 trio_string_destroy(info);
4254 }
4255 return status;
4256 }
4257
4258 /** @} End of Printf documentation module */
4259
4260 /*************************************************************************
4261 *
4262 * CALLBACK
4263 *
4264 ************************************************************************/
4265
4266 #if defined(TRIO_DOCUMENTATION)
4267 # include "doc/doc_register.h"
4268 #endif
4269 /**
4270 @addtogroup UserDefined
4271 @{
4272 */
4273
4274 #if TRIO_EXTENSION
4275
4276 /*************************************************************************
4277 * trio_register
4278 */
4279
4280 /**
4281 Register new user-defined specifier.
4282
4283 @param callback
4284 @param name
4285 @return Handle.
4286 */
4287 TRIO_PUBLIC trio_pointer_t
4288 trio_register
4289 TRIO_ARGS2((callback, name),
4290 trio_callback_t callback,
4291 TRIO_CONST char *name)
4292 {
4293 trio_userdef_t *def;
4294 trio_userdef_t *prev = NULL;
4295
4296 if (callback == NULL)
4297 return NULL;
4298
4299 if (name)
4300 {
4301 /* Handle built-in namespaces */
4302 if (name[0] == ':')
4303 {
4304 if (trio_equal(name, ":enter"))
4305 {
4306 internalEnterCriticalRegion = callback;
4307 }
4308 else if (trio_equal(name, ":leave"))
4309 {
4310 internalLeaveCriticalRegion = callback;
4311 }
4312 return NULL;
4313 }
4314
4315 /* Bail out if namespace is too long */
4316 if (trio_length(name) >= MAX_USER_NAME)
4317 return NULL;
4318
4319 /* Bail out if namespace already is registered */
4320 def = TrioFindNamespace(name, &prev);
4321 if (def)
4322 return NULL;
4323 }
4324
4325 def = (trio_userdef_t *)TRIO_MALLOC(sizeof(trio_userdef_t));
4326 if (def)
4327 {
4328 if (internalEnterCriticalRegion)
4329 (void)internalEnterCriticalRegion(NULL);
4330
4331 if (name)
4332 {
4333 /* Link into internal list */
4334 if (prev == NULL)
4335 internalUserDef = def;
4336 else
4337 prev->next = def;
4338 }
4339 /* Initialize */
4340 def->callback = callback;
4341 def->name = (name == NULL)
4342 ? NULL
4343 : trio_duplicate(name);
4344 def->next = NULL;
4345
4346 if (internalLeaveCriticalRegion)
4347 (void)internalLeaveCriticalRegion(NULL);
4348 }
4349 return (trio_pointer_t)def;
4350 }
4351
4352 /**
4353 Unregister an existing user-defined specifier.
4354
4355 @param handle
4356 */
4357 void
4358 trio_unregister
4359 TRIO_ARGS1((handle),
4360 trio_pointer_t handle)
4361 {
4362 trio_userdef_t *self = (trio_userdef_t *)handle;
4363 trio_userdef_t *def;
4364 trio_userdef_t *prev = NULL;
4365
4366 assert(VALID(self));
4367
4368 if (self->name)
4369 {
4370 def = TrioFindNamespace(self->name, &prev);
4371 if (def)
4372 {
4373 if (internalEnterCriticalRegion)
4374 (void)internalEnterCriticalRegion(NULL);
4375
4376 if (prev == NULL)
4377 internalUserDef = NULL;
4378 else
4379 prev->next = def->next;
4380
4381 if (internalLeaveCriticalRegion)
4382 (void)internalLeaveCriticalRegion(NULL);
4383 }
4384 trio_destroy(self->name);
4385 }
4386 TRIO_FREE(self);
4387 }
4388
4389 /*************************************************************************
4390 * trio_get_format [public]
4391 */
4392 TRIO_CONST char *
4393 trio_get_format
4394 TRIO_ARGS1((ref),
4395 trio_pointer_t ref)
4396 {
4397 #if defined(FORMAT_USER_DEFINED)
4398 assert(((trio_reference_t *)ref)->parameter->type == FORMAT_USER_DEFINED);
4399 #endif
4400
4401 return (((trio_reference_t *)ref)->parameter->user_data);
4402 }
4403
4404 /*************************************************************************
4405 * trio_get_argument [public]
4406 */
4407 trio_pointer_t
4408 trio_get_argument
4409 TRIO_ARGS1((ref),
4410 trio_pointer_t ref)
4411 {
4412 #if defined(FORMAT_USER_DEFINED)
4413 assert(((trio_reference_t *)ref)->parameter->type == FORMAT_USER_DEFINED);
4414 #endif
4415
4416 return ((trio_reference_t *)ref)->parameter->data.pointer;
4417 }
4418
4419 /*************************************************************************
4420 * trio_get_width / trio_set_width [public]
4421 */
4422 int
4423 trio_get_width
4424 TRIO_ARGS1((ref),
4425 trio_pointer_t ref)
4426 {
4427 return ((trio_reference_t *)ref)->parameter->width;
4428 }
4429
4430 void
4431 trio_set_width
4432 TRIO_ARGS2((ref, width),
4433 trio_pointer_t ref,
4434 int width)
4435 {
4436 ((trio_reference_t *)ref)->parameter->width = width;
4437 }
4438
4439 /*************************************************************************
4440 * trio_get_precision / trio_set_precision [public]
4441 */
4442 int
4443 trio_get_precision
4444 TRIO_ARGS1((ref),
4445 trio_pointer_t ref)
4446 {
4447 return (((trio_reference_t *)ref)->parameter->precision);
4448 }
4449
4450 void
4451 trio_set_precision
4452 TRIO_ARGS2((ref, precision),
4453 trio_pointer_t ref,
4454 int precision)
4455 {
4456 ((trio_reference_t *)ref)->parameter->precision = precision;
4457 }
4458
4459 /*************************************************************************
4460 * trio_get_base / trio_set_base [public]
4461 */
4462 int
4463 trio_get_base
4464 TRIO_ARGS1((ref),
4465 trio_pointer_t ref)
4466 {
4467 return (((trio_reference_t *)ref)->parameter->base);
4468 }
4469
4470 void
4471 trio_set_base
4472 TRIO_ARGS2((ref, base),
4473 trio_pointer_t ref,
4474 int base)
4475 {
4476 ((trio_reference_t *)ref)->parameter->base = base;
4477 }
4478
4479 /*************************************************************************
4480 * trio_get_long / trio_set_long [public]
4481 */
4482 int
4483 trio_get_long
4484 TRIO_ARGS1((ref),
4485 trio_pointer_t ref)
4486 {
4487 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LONG)
4488 ? TRUE
4489 : FALSE;
4490 }
4491
4492 void
4493 trio_set_long
4494 TRIO_ARGS2((ref, is_long),
4495 trio_pointer_t ref,
4496 int is_long)
4497 {
4498 if (is_long)
4499 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LONG;
4500 else
4501 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LONG;
4502 }
4503
4504 /*************************************************************************
4505 * trio_get_longlong / trio_set_longlong [public]
4506 */
4507 int
4508 trio_get_longlong
4509 TRIO_ARGS1((ref),
4510 trio_pointer_t ref)
4511 {
4512 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_QUAD)
4513 ? TRUE
4514 : FALSE;
4515 }
4516
4517 void
4518 trio_set_longlong
4519 TRIO_ARGS2((ref, is_longlong),
4520 trio_pointer_t ref,
4521 int is_longlong)
4522 {
4523 if (is_longlong)
4524 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_QUAD;
4525 else
4526 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_QUAD;
4527 }
4528
4529 /*************************************************************************
4530 * trio_get_longdouble / trio_set_longdouble [public]
4531 */
4532 int
4533 trio_get_longdouble
4534 TRIO_ARGS1((ref),
4535 trio_pointer_t ref)
4536 {
4537 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LONGDOUBLE)
4538 ? TRUE
4539 : FALSE;
4540 }
4541
4542 void
4543 trio_set_longdouble
4544 TRIO_ARGS2((ref, is_longdouble),
4545 trio_pointer_t ref,
4546 int is_longdouble)
4547 {
4548 if (is_longdouble)
4549 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LONGDOUBLE;
4550 else
4551 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LONGDOUBLE;
4552 }
4553
4554 /*************************************************************************
4555 * trio_get_short / trio_set_short [public]
4556 */
4557 int
4558 trio_get_short
4559 TRIO_ARGS1((ref),
4560 trio_pointer_t ref)
4561 {
4562 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHORT)
4563 ? TRUE
4564 : FALSE;
4565 }
4566
4567 void
4568 trio_set_short
4569 TRIO_ARGS2((ref, is_short),
4570 trio_pointer_t ref,
4571 int is_short)
4572 {
4573 if (is_short)
4574 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHORT;
4575 else
4576 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHORT;
4577 }
4578
4579 /*************************************************************************
4580 * trio_get_shortshort / trio_set_shortshort [public]
4581 */
4582 int
4583 trio_get_shortshort
4584 TRIO_ARGS1((ref),
4585 trio_pointer_t ref)
4586 {
4587 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHORTSHORT)
4588 ? TRUE
4589 : FALSE;
4590 }
4591
4592 void
4593 trio_set_shortshort
4594 TRIO_ARGS2((ref, is_shortshort),
4595 trio_pointer_t ref,
4596 int is_shortshort)
4597 {
4598 if (is_shortshort)
4599 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHORTSHORT;
4600 else
4601 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHORTSHORT;
4602 }
4603
4604 /*************************************************************************
4605 * trio_get_alternative / trio_set_alternative [public]
4606 */
4607 int
4608 trio_get_alternative
4609 TRIO_ARGS1((ref),
4610 trio_pointer_t ref)
4611 {
4612 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_ALTERNATIVE)
4613 ? TRUE
4614 : FALSE;
4615 }
4616
4617 void
4618 trio_set_alternative
4619 TRIO_ARGS2((ref, is_alternative),
4620 trio_pointer_t ref,
4621 int is_alternative)
4622 {
4623 if (is_alternative)
4624 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_ALTERNATIVE;
4625 else
4626 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_ALTERNATIVE;
4627 }
4628
4629 /*************************************************************************
4630 * trio_get_alignment / trio_set_alignment [public]
4631 */
4632 int
4633 trio_get_alignment
4634 TRIO_ARGS1((ref),
4635 trio_pointer_t ref)
4636 {
4637 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LEFTADJUST)
4638 ? TRUE
4639 : FALSE;
4640 }
4641
4642 void
4643 trio_set_alignment
4644 TRIO_ARGS2((ref, is_leftaligned),
4645 trio_pointer_t ref,
4646 int is_leftaligned)
4647 {
4648 if (is_leftaligned)
4649 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LEFTADJUST;
4650 else
4651 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LEFTADJUST;
4652 }
4653
4654 /*************************************************************************
4655 * trio_get_spacing /trio_set_spacing [public]
4656 */
4657 int
4658 trio_get_spacing
4659 TRIO_ARGS1((ref),
4660 trio_pointer_t ref)
4661 {
4662 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SPACE)
4663 ? TRUE
4664 : FALSE;
4665 }
4666
4667 void
4668 trio_set_spacing
4669 TRIO_ARGS2((ref, is_space),
4670 trio_pointer_t ref,
4671 int is_space)
4672 {
4673 if (is_space)
4674 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SPACE;
4675 else
4676 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SPACE;
4677 }
4678
4679 /*************************************************************************
4680 * trio_get_sign / trio_set_sign [public]
4681 */
4682 int
4683 trio_get_sign
4684 TRIO_ARGS1((ref),
4685 trio_pointer_t ref)
4686 {
4687 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHOWSIGN)
4688 ? TRUE
4689 : FALSE;
4690 }
4691
4692 void
4693 trio_set_sign
4694 TRIO_ARGS2((ref, is_sign),
4695 trio_pointer_t ref,
4696 int is_sign)
4697 {
4698 if (is_sign)
4699 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHOWSIGN;
4700 else
4701 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHOWSIGN;
4702 }
4703
4704 /*************************************************************************
4705 * trio_get_padding / trio_set_padding [public]
4706 */
4707 int
4708 trio_get_padding
4709 TRIO_ARGS1((ref),
4710 trio_pointer_t ref)
4711 {
4712 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_NILPADDING)
4713 ? TRUE
4714 : FALSE;
4715 }
4716
4717 void
4718 trio_set_padding
4719 TRIO_ARGS2((ref, is_padding),
4720 trio_pointer_t ref,
4721 int is_padding)
4722 {
4723 if (is_padding)
4724 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_NILPADDING;
4725 else
4726 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_NILPADDING;
4727 }
4728
4729 /*************************************************************************
4730 * trio_get_quote / trio_set_quote [public]
4731 */
4732 int
4733 trio_get_quote
4734 TRIO_ARGS1((ref),
4735 trio_pointer_t ref)
4736 {
4737 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_QUOTE)
4738 ? TRUE
4739 : FALSE;
4740 }
4741
4742 void
4743 trio_set_quote
4744 TRIO_ARGS2((ref, is_quote),
4745 trio_pointer_t ref,
4746 int is_quote)
4747 {
4748 if (is_quote)
4749 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_QUOTE;
4750 else
4751 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_QUOTE;
4752 }
4753
4754 /*************************************************************************
4755 * trio_get_upper / trio_set_upper [public]
4756 */
4757 int
4758 trio_get_upper
4759 TRIO_ARGS1((ref),
4760 trio_pointer_t ref)
4761 {
4762 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_UPPER)
4763 ? TRUE
4764 : FALSE;
4765 }
4766
4767 void
4768 trio_set_upper
4769 TRIO_ARGS2((ref, is_upper),
4770 trio_pointer_t ref,
4771 int is_upper)
4772 {
4773 if (is_upper)
4774 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_UPPER;
4775 else
4776 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_UPPER;
4777 }
4778
4779 /*************************************************************************
4780 * trio_get_largest / trio_set_largest [public]
4781 */
4782 #if TRIO_C99
4783 int
4784 trio_get_largest
4785 TRIO_ARGS1((ref),
4786 trio_pointer_t ref)
4787 {
4788 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_INTMAX_T)
4789 ? TRUE
4790 : FALSE;
4791 }
4792
4793 void
4794 trio_set_largest
4795 TRIO_ARGS2((ref, is_largest),
4796 trio_pointer_t ref,
4797 int is_largest)
4798 {
4799 if (is_largest)
4800 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_INTMAX_T;
4801 else
4802 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_INTMAX_T;
4803 }
4804 #endif
4805
4806 /*************************************************************************
4807 * trio_get_ptrdiff / trio_set_ptrdiff [public]
4808 */
4809 int
4810 trio_get_ptrdiff
4811 TRIO_ARGS1((ref),
4812 trio_pointer_t ref)
4813 {
4814 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_PTRDIFF_T)
4815 ? TRUE
4816 : FALSE;
4817 }
4818
4819 void
4820 trio_set_ptrdiff
4821 TRIO_ARGS2((ref, is_ptrdiff),
4822 trio_pointer_t ref,
4823 int is_ptrdiff)
4824 {
4825 if (is_ptrdiff)
4826 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_PTRDIFF_T;
4827 else
4828 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_PTRDIFF_T;
4829 }
4830
4831 /*************************************************************************
4832 * trio_get_size / trio_set_size [public]
4833 */
4834 #if TRIO_C99
4835 int
4836 trio_get_size
4837 TRIO_ARGS1((ref),
4838 trio_pointer_t ref)
4839 {
4840 return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SIZE_T)
4841 ? TRUE
4842 : FALSE;
4843 }
4844
4845 void
4846 trio_set_size
4847 TRIO_ARGS2((ref, is_size),
4848 trio_pointer_t ref,
4849 int is_size)
4850 {
4851 if (is_size)
4852 ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SIZE_T;
4853 else
4854 ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SIZE_T;
4855 }
4856 #endif
4857
4858 /*************************************************************************
4859 * trio_print_int [public]
4860 */
4861 void
4862 trio_print_int
4863 TRIO_ARGS2((ref, number),
4864 trio_pointer_t ref,
4865 int number)
4866 {
4867 trio_reference_t *self = (trio_reference_t *)ref;
4868
4869 TrioWriteNumber(self->data,
4870 (trio_uintmax_t)number,
4871 self->parameter->flags,
4872 self->parameter->width,
4873 self->parameter->precision,
4874 self->parameter->base);
4875 }
4876
4877 /*************************************************************************
4878 * trio_print_uint [public]
4879 */
4880 void
4881 trio_print_uint
4882 TRIO_ARGS2((ref, number),
4883 trio_pointer_t ref,
4884 unsigned int number)
4885 {
4886 trio_reference_t *self = (trio_reference_t *)ref;
4887
4888 TrioWriteNumber(self->data,
4889 (trio_uintmax_t)number,
4890 self->parameter->flags | FLAGS_UNSIGNED,
4891 self->parameter->width,
4892 self->parameter->precision,
4893 self->parameter->base);
4894 }
4895
4896 /*************************************************************************
4897 * trio_print_double [public]
4898 */
4899 void
4900 trio_print_double
4901 TRIO_ARGS2((ref, number),
4902 trio_pointer_t ref,
4903 double number)
4904 {
4905 trio_reference_t *self = (trio_reference_t *)ref;
4906
4907 TrioWriteDouble(self->data,
4908 number,
4909 self->parameter->flags,
4910 self->parameter->width,
4911 self->parameter->precision,
4912 self->parameter->base);
4913 }
4914
4915 /*************************************************************************
4916 * trio_print_string [public]
4917 */
4918 void
4919 trio_print_string
4920 TRIO_ARGS2((ref, string),
4921 trio_pointer_t ref,
4922 char *string)
4923 {
4924 trio_reference_t *self = (trio_reference_t *)ref;
4925
4926 TrioWriteString(self->data,
4927 string,
4928 self->parameter->flags,
4929 self->parameter->width,
4930 self->parameter->precision);
4931 }
4932
4933 /*************************************************************************
4934 * trio_print_ref [public]
4935 */
4936 int
4937 trio_print_ref
4938 TRIO_VARGS3((ref, format, va_alist),
4939 trio_pointer_t ref,
4940 TRIO_CONST char *format,
4941 TRIO_VA_DECL)
4942 {
4943 int status;
4944 va_list arglist;
4945
4946 assert(VALID(format));
4947
4948 TRIO_VA_START(arglist, format);
4949 status = TrioFormatRef((trio_reference_t *)ref, format, TRIO_VA_LIST_ADDR(arglist), NULL);
4950 TRIO_VA_END(arglist);
4951 return status;
4952 }
4953
4954 /*************************************************************************
4955 * trio_vprint_ref [public]
4956 */
4957 int
4958 trio_vprint_ref
4959 TRIO_ARGS3((ref, format, arglist),
4960 trio_pointer_t ref,
4961 TRIO_CONST char *format,
4962 va_list arglist)
4963 {
4964 assert(VALID(format));
4965
4966 return TrioFormatRef((trio_reference_t *)ref, format, TRIO_VA_LIST_ADDR(arglist), NULL);
4967 }
4968
4969 /*************************************************************************
4970 * trio_printv_ref [public]
4971 */
4972 int
4973 trio_printv_ref
4974 TRIO_ARGS3((ref, format, argarray),
4975 trio_pointer_t ref,
4976 TRIO_CONST char *format,
4977 trio_pointer_t *argarray)
4978 {
4979 assert(VALID(format));
4980
4981 return TrioFormatRef((trio_reference_t *)ref, format, NULL, argarray);
4982 }
4983
4984 #endif /* TRIO_EXTENSION */
4985
4986 /*************************************************************************
4987 * trio_print_pointer [public]
4988 */
4989 void
4990 trio_print_pointer
4991 TRIO_ARGS2((ref, pointer),
4992 trio_pointer_t ref,
4993 trio_pointer_t pointer)
4994 {
4995 trio_reference_t *self = (trio_reference_t *)ref;
4996 trio_flags_t flags;
4997 trio_uintmax_t number;
4998
4999 if (NULL == pointer)
5000 {
5001 TRIO_CONST char *string = internalNullString;
5002 while (*string)
5003 self->data->OutStream(self->data, *string++);
5004 }
5005 else
5006 {
5007 /*
5008 * The subtraction of the null pointer is a workaround
5009 * to avoid a compiler warning. The performance overhead
5010 * is negligible (and likely to be removed by an
5011 * optimizing compiler). The (char *) casting is done
5012 * to please ANSI C++.
5013 */
5014 number = (trio_uintmax_t)((char *)pointer - (char *)0);
5015 /* Shrink to size of pointer */
5016 number &= (trio_uintmax_t)-1;
5017 flags = self->parameter->flags;
5018 flags |= (FLAGS_UNSIGNED | FLAGS_ALTERNATIVE |
5019 FLAGS_NILPADDING);
5020 TrioWriteNumber(self->data,
5021 number,
5022 flags,
5023 POINTER_WIDTH,
5024 NO_PRECISION,
5025 BASE_HEX);
5026 }
5027 }
5028
5029 /** @} End of UserDefined documentation module */
5030
5031 /*************************************************************************
5032 *
5033 * LOCALES
5034 *
5035 ************************************************************************/
5036
5037 /*************************************************************************
5038 * trio_locale_set_decimal_point
5039 *
5040 * Decimal point can only be one character. The input argument is a
5041 * string to enable multibyte characters. At most MB_LEN_MAX characters
5042 * will be used.
5043 */
5044 TRIO_PUBLIC void
5045 trio_locale_set_decimal_point
5046 TRIO_ARGS1((decimalPoint),
5047 char *decimalPoint)
5048 {
5049 #if defined(USE_LOCALE)
5050 if (NULL == internalLocaleValues)
5051 {
5052 TrioSetLocale();
5053 }
5054 #endif
5055 internalDecimalPointLength = trio_length(decimalPoint);
5056 if (internalDecimalPointLength == 1)
5057 {
5058 internalDecimalPoint = *decimalPoint;
5059 }
5060 else
5061 {
5062 internalDecimalPoint = NIL;
5063 trio_copy_max(internalDecimalPointString,
5064 sizeof(internalDecimalPointString),
5065 decimalPoint);
5066 }
5067 }
5068
5069 /*************************************************************************
5070 * trio_locale_set_thousand_separator
5071 *
5072 * See trio_locale_set_decimal_point
5073 */
5074 TRIO_PUBLIC void
5075 trio_locale_set_thousand_separator
5076 TRIO_ARGS1((thousandSeparator),
5077 char *thousandSeparator)
5078 {
5079 #if defined(USE_LOCALE)
5080 if (NULL == internalLocaleValues)
5081 {
5082 TrioSetLocale();
5083 }
5084 #endif
5085 trio_copy_max(internalThousandSeparator,
5086 sizeof(internalThousandSeparator),
5087 thousandSeparator);
5088 internalThousandSeparatorLength = trio_length(internalThousandSeparator);
5089 }
5090
5091 /*************************************************************************
5092 * trio_locale_set_grouping
5093 *
5094 * Array of bytes. Reversed order.
5095 *
5096 * CHAR_MAX : No further grouping
5097 * 0 : Repeat last group for the remaining digits (not necessary
5098 * as C strings are zero-terminated)
5099 * n : Set current group to n
5100 *
5101 * Same order as the grouping attribute in LC_NUMERIC.
5102 */
5103 TRIO_PUBLIC void
5104 trio_locale_set_grouping
5105 TRIO_ARGS1((grouping),
5106 char *grouping)
5107 {
5108 #if defined(USE_LOCALE)
5109 if (NULL == internalLocaleValues)
5110 {
5111 TrioSetLocale();
5112 }
5113 #endif
5114 trio_copy_max(internalGrouping,
5115 sizeof(internalGrouping),
5116 grouping);
5117 }
5118
5119
5120 /*************************************************************************
5121 *
5122 * SCANNING
5123 *
5124 ************************************************************************/
5125
5126 /*************************************************************************
5127 * TrioSkipWhitespaces
5128 */
5129 TRIO_PRIVATE int
5130 TrioSkipWhitespaces
5131 TRIO_ARGS1((self),
5132 trio_class_t *self)
5133 {
5134 int ch;
5135
5136 ch = self->current;
5137 while (isspace(ch))
5138 {
5139 self->InStream(self, &ch);
5140 }
5141 return ch;
5142 }
5143
5144 /*************************************************************************
5145 * TrioGetCollation
5146 */
5147 #if TRIO_EXTENSION
5148 TRIO_PRIVATE void
5149 TrioGetCollation(TRIO_NOARGS)
5150 {
5151 int i;
5152 int j;
5153 int k;
5154 char first[2];
5155 char second[2];
5156
5157 /* This is computationally expensive */
5158 first[1] = NIL;
5159 second[1] = NIL;
5160 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5161 {
5162 k = 0;
5163 first[0] = (char)i;
5164 for (j = 0; j < MAX_CHARACTER_CLASS; j++)
5165 {
5166 second[0] = (char)j;
5167 if (trio_equal_locale(first, second))
5168 internalCollationArray[i][k++] = (char)j;
5169 }
5170 internalCollationArray[i][k] = NIL;
5171 }
5172 }
5173 #endif
5174
5175 /*************************************************************************
5176 * TrioGetCharacterClass
5177 *
5178 * FIXME:
5179 * multibyte
5180 */
5181 TRIO_PRIVATE int
5182 TrioGetCharacterClass
5183 TRIO_ARGS4((format, indexPointer, flagsPointer, characterclass),
5184 TRIO_CONST char *format,
5185 int *indexPointer,
5186 trio_flags_t *flagsPointer,
5187 int *characterclass)
5188 {
5189 int index = *indexPointer;
5190 int i;
5191 char ch;
5192 char range_begin;
5193 char range_end;
5194
5195 *flagsPointer &= ~FLAGS_EXCLUDE;
5196
5197 if (format[index] == QUALIFIER_CIRCUMFLEX)
5198 {
5199 *flagsPointer |= FLAGS_EXCLUDE;
5200 index++;
5201 }
5202 /*
5203 * If the ungroup character is at the beginning of the scanlist,
5204 * it will be part of the class, and a second ungroup character
5205 * must follow to end the group.
5206 */
5207 if (format[index] == SPECIFIER_UNGROUP)
5208 {
5209 characterclass[(int)SPECIFIER_UNGROUP]++;
5210 index++;
5211 }
5212 /*
5213 * Minus is used to specify ranges. To include minus in the class,
5214 * it must be at the beginning of the list
5215 */
5216 if (format[index] == QUALIFIER_MINUS)
5217 {
5218 characterclass[(int)QUALIFIER_MINUS]++;
5219 index++;
5220 }
5221 /* Collect characters */
5222 for (ch = format[index];
5223 (ch != SPECIFIER_UNGROUP) && (ch != NIL);
5224 ch = format[++index])
5225 {
5226 switch (ch)
5227 {
5228 case QUALIFIER_MINUS: /* Scanlist ranges */
5229
5230 /*
5231 * Both C99 and UNIX98 describes ranges as implementation-
5232 * defined.
5233 *
5234 * We support the following behaviour (although this may
5235 * change as we become wiser)
5236 * - only increasing ranges, ie. [a-b] but not [b-a]
5237 * - transitive ranges, ie. [a-b-c] == [a-c]
5238 * - trailing minus, ie. [a-] is interpreted as an 'a'
5239 * and a '-'
5240 * - duplicates (although we can easily convert these
5241 * into errors)
5242 */
5243 range_begin = format[index - 1];
5244 range_end = format[++index];
5245 if (range_end == SPECIFIER_UNGROUP)
5246 {
5247 /* Trailing minus is included */
5248 characterclass[(int)ch]++;
5249 ch = range_end;
5250 break; /* for */
5251 }
5252 if (range_end == NIL)
5253 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
5254 if (range_begin > range_end)
5255 return TRIO_ERROR_RETURN(TRIO_ERANGE, index);
5256
5257 for (i = (int)range_begin; i <= (int)range_end; i++)
5258 characterclass[i]++;
5259
5260 ch = range_end;
5261 break;
5262
5263 #if TRIO_EXTENSION
5264
5265 case SPECIFIER_GROUP:
5266
5267 switch (format[index + 1])
5268 {
5269 case QUALIFIER_DOT: /* Collating symbol */
5270 /*
5271 * FIXME: This will be easier to implement when multibyte
5272 * characters have been implemented. Until now, we ignore
5273 * this feature.
5274 */
5275 for (i = index + 2; ; i++)
5276 {
5277 if (format[i] == NIL)
5278 /* Error in syntax */
5279 return -1;
5280 else if (format[i] == QUALIFIER_DOT)
5281 break; /* for */
5282 }
5283 if (format[++i] != SPECIFIER_UNGROUP)
5284 return -1;
5285
5286 index = i;
5287 break;
5288
5289 case QUALIFIER_EQUAL: /* Equivalence class expressions */
5290 {
5291 unsigned int j;
5292 unsigned int k;
5293
5294 if (internalCollationUnconverted)
5295 {
5296 /* Lazy evaluation of collation array */
5297 TrioGetCollation();
5298 internalCollationUnconverted = FALSE;
5299 }
5300 for (i = index + 2; ; i++)
5301 {
5302 if (format[i] == NIL)
5303 /* Error in syntax */
5304 return -1;
5305 else if (format[i] == QUALIFIER_EQUAL)
5306 break; /* for */
5307 else
5308 {
5309 /* Mark any equivalent character */
5310 k = (unsigned int)format[i];
5311 for (j = 0; internalCollationArray[k][j] != NIL; j++)
5312 characterclass[(int)internalCollationArray[k][j]]++;
5313 }
5314 }
5315 if (format[++i] != SPECIFIER_UNGROUP)
5316 return -1;
5317
5318 index = i;
5319 }
5320 break;
5321
5322 case QUALIFIER_COLON: /* Character class expressions */
5323
5324 if (trio_equal_max(CLASS_ALNUM, sizeof(CLASS_ALNUM) - 1,
5325 &format[index]))
5326 {
5327 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5328 if (isalnum(i))
5329 characterclass[i]++;
5330 index += sizeof(CLASS_ALNUM) - 1;
5331 }
5332 else if (trio_equal_max(CLASS_ALPHA, sizeof(CLASS_ALPHA) - 1,
5333 &format[index]))
5334 {
5335 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5336 if (isalpha(i))
5337 characterclass[i]++;
5338 index += sizeof(CLASS_ALPHA) - 1;
5339 }
5340 else if (trio_equal_max(CLASS_CNTRL, sizeof(CLASS_CNTRL) - 1,
5341 &format[index]))
5342 {
5343 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5344 if (iscntrl(i))
5345 characterclass[i]++;
5346 index += sizeof(CLASS_CNTRL) - 1;
5347 }
5348 else if (trio_equal_max(CLASS_DIGIT, sizeof(CLASS_DIGIT) - 1,
5349 &format[index]))
5350 {
5351 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5352 if (isdigit(i))
5353 characterclass[i]++;
5354 index += sizeof(CLASS_DIGIT) - 1;
5355 }
5356 else if (trio_equal_max(CLASS_GRAPH, sizeof(CLASS_GRAPH) - 1,
5357 &format[index]))
5358 {
5359 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5360 if (isgraph(i))
5361 characterclass[i]++;
5362 index += sizeof(CLASS_GRAPH) - 1;
5363 }
5364 else if (trio_equal_max(CLASS_LOWER, sizeof(CLASS_LOWER) - 1,
5365 &format[index]))
5366 {
5367 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5368 if (islower(i))
5369 characterclass[i]++;
5370 index += sizeof(CLASS_LOWER) - 1;
5371 }
5372 else if (trio_equal_max(CLASS_PRINT, sizeof(CLASS_PRINT) - 1,
5373 &format[index]))
5374 {
5375 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5376 if (isprint(i))
5377 characterclass[i]++;
5378 index += sizeof(CLASS_PRINT) - 1;
5379 }
5380 else if (trio_equal_max(CLASS_PUNCT, sizeof(CLASS_PUNCT) - 1,
5381 &format[index]))
5382 {
5383 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5384 if (ispunct(i))
5385 characterclass[i]++;
5386 index += sizeof(CLASS_PUNCT) - 1;
5387 }
5388 else if (trio_equal_max(CLASS_SPACE, sizeof(CLASS_SPACE) - 1,
5389 &format[index]))
5390 {
5391 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5392 if (isspace(i))
5393 characterclass[i]++;
5394 index += sizeof(CLASS_SPACE) - 1;
5395 }
5396 else if (trio_equal_max(CLASS_UPPER, sizeof(CLASS_UPPER) - 1,
5397 &format[index]))
5398 {
5399 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5400 if (isupper(i))
5401 characterclass[i]++;
5402 index += sizeof(CLASS_UPPER) - 1;
5403 }
5404 else if (trio_equal_max(CLASS_XDIGIT, sizeof(CLASS_XDIGIT) - 1,
5405 &format[index]))
5406 {
5407 for (i = 0; i < MAX_CHARACTER_CLASS; i++)
5408 if (isxdigit(i))
5409 characterclass[i]++;
5410 index += sizeof(CLASS_XDIGIT) - 1;
5411 }
5412 else
5413 {
5414 characterclass[(int)ch]++;
5415 }
5416 break;
5417
5418 default:
5419 characterclass[(int)ch]++;
5420 break;
5421 }
5422 break;
5423
5424 #endif /* TRIO_EXTENSION */
5425
5426 default:
5427 characterclass[(int)ch]++;
5428 break;
5429 }
5430 }
5431 return 0;
5432 }
5433
5434 /*************************************************************************
5435 * TrioReadNumber
5436 *
5437 * We implement our own number conversion in preference of strtol and
5438 * strtoul, because we must handle 'long long' and thousand separators.
5439 */
5440 TRIO_PRIVATE BOOLEAN_T
5441 TrioReadNumber
5442 TRIO_ARGS5((self, target, flags, width, base),
5443 trio_class_t *self,
5444 trio_uintmax_t *target,
5445 trio_flags_t flags,
5446 int width,
5447 int base)
5448 {
5449 trio_uintmax_t number = 0;
5450 int digit;
5451 int count;
5452 BOOLEAN_T isNegative = FALSE;
5453 BOOLEAN_T gotNumber = FALSE;
5454 int j;
5455
5456 assert(VALID(self));
5457 assert(VALID(self->InStream));
5458 assert((base >= MIN_BASE && base <= MAX_BASE) || (base == NO_BASE));
5459
5460 if (internalDigitsUnconverted)
5461 {
5462 /* Lazy evaluation of digits array */
5463 memset(internalDigitArray, -1, sizeof(internalDigitArray));
5464 for (j = 0; j < (int)sizeof(internalDigitsLower) - 1; j++)
5465 {
5466 internalDigitArray[(int)internalDigitsLower[j]] = j;
5467 internalDigitArray[(int)internalDigitsUpper[j]] = j;
5468 }
5469 internalDigitsUnconverted = FALSE;
5470 }
5471
5472 TrioSkipWhitespaces(self);
5473
5474 if (!(flags & FLAGS_UNSIGNED))
5475 {
5476 /* Leading sign */
5477 if (self->current == '+')
5478 {
5479 self->InStream(self, NULL);
5480 }
5481 else if (self->current == '-')
5482 {
5483 self->InStream(self, NULL);
5484 isNegative = TRUE;
5485 }
5486 }
5487
5488 count = self->processed;
5489
5490 if (flags & FLAGS_ALTERNATIVE)
5491 {
5492 switch (base)
5493 {
5494 case NO_BASE:
5495 case BASE_OCTAL:
5496 case BASE_HEX:
5497 case BASE_BINARY:
5498 if (self->current == '0')
5499 {
5500 self->InStream(self, NULL);
5501 if (self->current)
5502 {
5503 if ((base == BASE_HEX) &&
5504 (trio_to_upper(self->current) == 'X'))
5505 {
5506 self->InStream(self, NULL);
5507 }
5508 else if ((base == BASE_BINARY) &&
5509 (trio_to_upper(self->current) == 'B'))
5510 {
5511 self->InStream(self, NULL);
5512 }
5513 }
5514 }
5515 else
5516 return FALSE;
5517 break;
5518 default:
5519 break;
5520 }
5521 }
5522
5523 while (((width == NO_WIDTH) || (self->processed - count < width)) &&
5524 (! ((self->current == EOF) || isspace(self->current))))
5525 {
5526 if (isascii(self->current))
5527 {
5528 digit = internalDigitArray[self->current];
5529 /* Abort if digit is not allowed in the specified base */
5530 if ((digit == -1) || (digit >= base))
5531 break;
5532 }
5533 else if (flags & FLAGS_QUOTE)
5534 {
5535 /* Compare with thousands separator */
5536 for (j = 0; internalThousandSeparator[j] && self->current; j++)
5537 {
5538 if (internalThousandSeparator[j] != self->current)
5539 break;
5540
5541 self->InStream(self, NULL);
5542 }
5543 if (internalThousandSeparator[j])
5544 break; /* Mismatch */
5545 else
5546 continue; /* Match */
5547 }
5548 else
5549 break;
5550
5551 number *= base;
5552 number += digit;
5553 gotNumber = TRUE; /* we need at least one digit */
5554
5555 self->InStream(self, NULL);
5556 }
5557
5558 /* Was anything read at all? */
5559 if (!gotNumber)
5560 return FALSE;
5561
5562 if (target)
5563 *target = (isNegative) ? -((trio_intmax_t)number) : number;
5564 return TRUE;
5565 }
5566
5567 /*************************************************************************
5568 * TrioReadChar
5569 */
5570 TRIO_PRIVATE int
5571 TrioReadChar
5572 TRIO_ARGS4((self, target, flags, width),
5573 trio_class_t *self,
5574 char *target,
5575 trio_flags_t flags,
5576 int width)
5577 {
5578 int i;
5579 char ch;
5580 trio_uintmax_t number;
5581
5582 assert(VALID(self));
5583 assert(VALID(self->InStream));
5584
5585 for (i = 0;
5586 (self->current != EOF) && (i < width);
5587 i++)
5588 {
5589 ch = (char)self->current;
5590 self->InStream(self, NULL);
5591 if ((flags & FLAGS_ALTERNATIVE) && (ch == CHAR_BACKSLASH))
5592 {
5593 switch (self->current)
5594 {
5595 case '\\': ch = '\\'; break;
5596 case 'a': ch = '\007'; break;
5597 case 'b': ch = '\b'; break;
5598 case 'f': ch = '\f'; break;
5599 case 'n': ch = '\n'; break;
5600 case 'r': ch = '\r'; break;
5601 case 't': ch = '\t'; break;
5602 case 'v': ch = '\v'; break;
5603 default:
5604 if (isdigit(self->current))
5605 {
5606 /* Read octal number */
5607 if (!TrioReadNumber(self, &number, 0, 3, BASE_OCTAL))
5608 return 0;
5609 ch = (char)number;
5610 }
5611 else if (trio_to_upper(self->current) == 'X')
5612 {
5613 /* Read hexadecimal number */
5614 self->InStream(self, NULL);
5615 if (!TrioReadNumber(self, &number, 0, 2, BASE_HEX))
5616 return 0;
5617 ch = (char)number;
5618 }
5619 else
5620 {
5621 ch = (char)self->current;
5622 }
5623 break;
5624 }
5625 }
5626
5627 if (target)
5628 target[i] = ch;
5629 }
5630 return i + 1;
5631 }
5632
5633 /*************************************************************************
5634 * TrioReadString
5635 */
5636 TRIO_PRIVATE BOOLEAN_T
5637 TrioReadString
5638 TRIO_ARGS4((self, target, flags, width),
5639 trio_class_t *self,
5640 char *target,
5641 trio_flags_t flags,
5642 int width)
5643 {
5644 int i;
5645
5646 assert(VALID(self));
5647 assert(VALID(self->InStream));
5648
5649 TrioSkipWhitespaces(self);
5650
5651 /*
5652 * Continue until end of string is reached, a whitespace is encountered,
5653 * or width is exceeded
5654 */
5655 for (i = 0;
5656 ((width == NO_WIDTH) || (i < width)) &&
5657 (! ((self->current == EOF) || isspace(self->current)));
5658 i++)
5659 {
5660 if (TrioReadChar(self, (target ? &target[i] : 0), flags, 1) == 0)
5661 break; /* for */
5662 }
5663 if (target)
5664 target[i] = NIL;
5665 return TRUE;
5666 }
5667
5668 /*************************************************************************
5669 * TrioReadWideChar
5670 */
5671 #if TRIO_WIDECHAR
5672 TRIO_PRIVATE int
5673 TrioReadWideChar
5674 TRIO_ARGS4((self, target, flags, width),
5675 trio_class_t *self,
5676 trio_wchar_t *target,
5677 trio_flags_t flags,
5678 int width)
5679 {
5680 int i;
5681 int j;
5682 int size;
5683 int amount = 0;
5684 trio_wchar_t wch;
5685 char buffer[MB_LEN_MAX + 1];
5686
5687 assert(VALID(self));
5688 assert(VALID(self->InStream));
5689
5690 for (i = 0;
5691 (self->current != EOF) && (i < width);
5692 i++)
5693 {
5694 if (isascii(self->current))
5695 {
5696 if (TrioReadChar(self, buffer, flags, 1) == 0)
5697 return 0;
5698 buffer[1] = NIL;
5699 }
5700 else
5701 {
5702 /*
5703 * Collect a multibyte character, by enlarging buffer until
5704 * it contains a fully legal multibyte character, or the
5705 * buffer is full.
5706 */
5707 j = 0;
5708 do
5709 {
5710 buffer[j++] = (char)self->current;
5711 buffer[j] = NIL;
5712 self->InStream(self, NULL);
5713 }
5714 while ((j < (int)sizeof(buffer)) && (mblen(buffer, (size_t)j) != j));
5715 }
5716 if (target)
5717 {
5718 size = mbtowc(&wch, buffer, sizeof(buffer));
5719 if (size > 0)
5720 target[i] = wch;
5721 }
5722 amount += size;
5723 self->InStream(self, NULL);
5724 }
5725 return amount;
5726 }
5727 #endif /* TRIO_WIDECHAR */
5728
5729 /*************************************************************************
5730 * TrioReadWideString
5731 */
5732 #if TRIO_WIDECHAR
5733 TRIO_PRIVATE BOOLEAN_T
5734 TrioReadWideString
5735 TRIO_ARGS4((self, target, flags, width),
5736 trio_class_t *self,
5737 trio_wchar_t *target,
5738 trio_flags_t flags,
5739 int width)
5740 {
5741 int i;
5742 int size;
5743
5744 assert(VALID(self));
5745 assert(VALID(self->InStream));
5746
5747 TrioSkipWhitespaces(self);
5748
5749 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
5750 (void)mblen(NULL, 0);
5751 #endif
5752
5753 /*
5754 * Continue until end of string is reached, a whitespace is encountered,
5755 * or width is exceeded
5756 */
5757 for (i = 0;
5758 ((width == NO_WIDTH) || (i < width)) &&
5759 (! ((self->current == EOF) || isspace(self->current)));
5760 )
5761 {
5762 size = TrioReadWideChar(self, &target[i], flags, 1);
5763 if (size == 0)
5764 break; /* for */
5765
5766 i += size;
5767 }
5768 if (target)
5769 target[i] = WCONST('\0');
5770 return TRUE;
5771 }
5772 #endif /* TRIO_WIDECHAR */
5773
5774 /*************************************************************************
5775 * TrioReadGroup
5776 *
5777 * FIXME: characterclass does not work with multibyte characters
5778 */
5779 TRIO_PRIVATE BOOLEAN_T
5780 TrioReadGroup
5781 TRIO_ARGS5((self, target, characterclass, flags, width),
5782 trio_class_t *self,
5783 char *target,
5784 int *characterclass,
5785 trio_flags_t flags,
5786 int width)
5787 {
5788 int ch;
5789 int i;
5790
5791 assert(VALID(self));
5792 assert(VALID(self->InStream));
5793
5794 ch = self->current;
5795 for (i = 0;
5796 ((width == NO_WIDTH) || (i < width)) &&
5797 (! ((ch == EOF) ||
5798 (((flags & FLAGS_EXCLUDE) != 0) ^ (characterclass[ch] == 0))));
5799 i++)
5800 {
5801 if (target)
5802 target[i] = (char)ch;
5803 self->InStream(self, &ch);
5804 }
5805
5806 if (target)
5807 target[i] = NIL;
5808 return TRUE;
5809 }
5810
5811 /*************************************************************************
5812 * TrioReadDouble
5813 *
5814 * FIXME:
5815 * add long double
5816 * handle base
5817 */
5818 TRIO_PRIVATE BOOLEAN_T
5819 TrioReadDouble
5820 TRIO_ARGS4((self, target, flags, width),
5821 trio_class_t *self,
5822 trio_pointer_t target,
5823 trio_flags_t flags,
5824 int width)
5825 {
5826 int ch;
5827 char doubleString[512];
5828 int index = 0;
5829 int start;
5830 int j;
5831 BOOLEAN_T isHex = FALSE;
5832
5833 doubleString[0] = 0;
5834
5835 if ((width == NO_WIDTH) || (width > (int)sizeof(doubleString) - 1))
5836 width = sizeof(doubleString) - 1;
5837
5838 TrioSkipWhitespaces(self);
5839
5840 /*
5841 * Read entire double number from stream. trio_to_double requires
5842 * a string as input, but InStream can be anything, so we have to
5843 * collect all characters.
5844 */
5845 ch = self->current;
5846 if ((ch == '+') || (ch == '-'))
5847 {
5848 doubleString[index++] = (char)ch;
5849 self->InStream(self, &ch);
5850 width--;
5851 }
5852
5853 start = index;
5854 switch (ch)
5855 {
5856 case 'n':
5857 case 'N':
5858 /* Not-a-number */
5859 if (index != 0)
5860 break;
5861 /* FALLTHROUGH */
5862 case 'i':
5863 case 'I':
5864 /* Infinity */
5865 while (isalpha(ch) && (index - start < width))
5866 {
5867 doubleString[index++] = (char)ch;
5868 self->InStream(self, &ch);
5869 }
5870 doubleString[index] = NIL;
5871
5872 /* Case insensitive string comparison */
5873 if (trio_equal(&doubleString[start], INFINITE_UPPER) ||
5874 trio_equal(&doubleString[start], LONG_INFINITE_UPPER))
5875 {
5876 if (flags & FLAGS_LONGDOUBLE)
5877 {
5878 if ((start == 1) && (doubleString[0] == '-'))
5879 {
5880 *((trio_long_double_t *)target) = trio_ninf();
5881 }
5882 else
5883 {
5884 *((trio_long_double_t *)target) = trio_pinf();
5885 }
5886 }
5887 else
5888 {
5889 if ((start == 1) && (doubleString[0] == '-'))
5890 {
5891 *((double *)target) = trio_ninf();
5892 }
5893 else
5894 {
5895 *((double *)target) = trio_pinf();
5896 }
5897 }
5898 return TRUE;
5899 }
5900 if (trio_equal(doubleString, NAN_UPPER))
5901 {
5902 /* NaN must not have a preceeding + nor - */
5903 if (flags & FLAGS_LONGDOUBLE)
5904 {
5905 *((trio_long_double_t *)target) = trio_nan();
5906 }
5907 else
5908 {
5909 *((double *)target) = trio_nan();
5910 }
5911 return TRUE;
5912 }
5913 return FALSE;
5914
5915 case '0':
5916 doubleString[index++] = (char)ch;
5917 self->InStream(self, &ch);
5918 if (trio_to_upper(ch) == 'X')
5919 {
5920 isHex = TRUE;
5921 doubleString[index++] = (char)ch;
5922 self->InStream(self, &ch);
5923 }
5924 break;
5925
5926 default:
5927 break;
5928 }
5929
5930 while ((ch != EOF) && (index - start < width))
5931 {
5932 /* Integer part */
5933 if (isHex ? isxdigit(ch) : isdigit(ch))
5934 {
5935 doubleString[index++] = (char)ch;
5936 self->InStream(self, &ch);
5937 }
5938 else if (flags & FLAGS_QUOTE)
5939 {
5940 /* Compare with thousands separator */
5941 for (j = 0; internalThousandSeparator[j] && self->current; j++)
5942 {
5943 if (internalThousandSeparator[j] != self->current)
5944 break;
5945
5946 self->InStream(self, &ch);
5947 }
5948 if (internalThousandSeparator[j])
5949 break; /* Mismatch */
5950 else
5951 continue; /* Match */
5952 }
5953 else
5954 break; /* while */
5955 }
5956 if (ch == '.')
5957 {
5958 /* Decimal part */
5959 doubleString[index++] = (char)ch;
5960 self->InStream(self, &ch);
5961 while ((isHex ? isxdigit(ch) : isdigit(ch)) &&
5962 (index - start < width))
5963 {
5964 doubleString[index++] = (char)ch;
5965 self->InStream(self, &ch);
5966 }
5967 if (isHex ? (trio_to_upper(ch) == 'P') : (trio_to_upper(ch) == 'E'))
5968 {
5969 /* Exponent */
5970 doubleString[index++] = (char)ch;
5971 self->InStream(self, &ch);
5972 if ((ch == '+') || (ch == '-'))
5973 {
5974 doubleString[index++] = (char)ch;
5975 self->InStream(self, &ch);
5976 }
5977 while (isdigit(ch) && (index - start < width))
5978 {
5979 doubleString[index++] = (char)ch;
5980 self->InStream(self, &ch);
5981 }
5982 }
5983 }
5984
5985 if ((index == start) || (*doubleString == NIL))
5986 return FALSE;
5987
5988 doubleString[index] = 0;
5989
5990 if (flags & FLAGS_LONGDOUBLE)
5991 {
5992 *((trio_long_double_t *)target) = trio_to_long_double(doubleString, NULL);
5993 }
5994 else
5995 {
5996 *((double *)target) = trio_to_double(doubleString, NULL);
5997 }
5998 return TRUE;
5999 }
6000
6001 /*************************************************************************
6002 * TrioReadPointer
6003 */
6004 TRIO_PRIVATE BOOLEAN_T
6005 TrioReadPointer
6006 TRIO_ARGS3((self, target, flags),
6007 trio_class_t *self,
6008 trio_pointer_t *target,
6009 trio_flags_t flags)
6010 {
6011 trio_uintmax_t number;
6012 char buffer[sizeof(internalNullString)];
6013
6014 flags |= (FLAGS_UNSIGNED | FLAGS_ALTERNATIVE | FLAGS_NILPADDING);
6015
6016 if (TrioReadNumber(self,
6017 &number,
6018 flags,
6019 POINTER_WIDTH,
6020 BASE_HEX))
6021 {
6022 /*
6023 * The strange assignment of number is a workaround for a compiler
6024 * warning
6025 */
6026 if (target)
6027 *target = (char *)0 + number;
6028 return TRUE;
6029 }
6030 else if (TrioReadString(self,
6031 (flags & FLAGS_IGNORE)
6032 ? NULL
6033 : buffer,
6034 0,
6035 sizeof(internalNullString) - 1))
6036 {
6037 if (trio_equal_case(buffer, internalNullString))
6038 {
6039 if (target)
6040 *target = NULL;
6041 return TRUE;
6042 }
6043 }
6044 return FALSE;
6045 }
6046
6047 /*************************************************************************
6048 * TrioScanProcess
6049 */
6050 TRIO_PRIVATE int
6051 TrioScanProcess
6052 TRIO_ARGS3((data, format, parameters),
6053 trio_class_t *data,
6054 TRIO_CONST char *format,
6055 trio_parameter_t *parameters)
6056 {
6057 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
6058 int charlen;
6059 int cnt;
6060 #endif
6061 int assignment;
6062 int ch;
6063 int index; /* Index of format string */
6064 int i; /* Index of current parameter */
6065 trio_flags_t flags;
6066 int width;
6067 int base;
6068 trio_pointer_t pointer;
6069
6070 assignment = 0;
6071 i = 0;
6072 index = 0;
6073 data->InStream(data, &ch);
6074
6075 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
6076 (void)mblen(NULL, 0);
6077 #endif
6078
6079 while (format[index])
6080 {
6081 #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE)
6082 if (! isascii(format[index]))
6083 {
6084 charlen = mblen(&format[index], MB_LEN_MAX);
6085 if (charlen != -1)
6086 {
6087 /* Compare multibyte characters in format string */
6088 for (cnt = 0; cnt < charlen - 1; cnt++)
6089 {
6090 if (ch != format[index + cnt])
6091 {
6092 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
6093 }
6094 data->InStream(data, &ch);
6095 }
6096 continue; /* while characters left in formatting string */
6097 }
6098 }
6099 #endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */
6100
6101 if ((EOF == ch) && (parameters[i].type != FORMAT_COUNT))
6102 {
6103 return (assignment > 0) ? assignment : EOF;
6104 }
6105
6106 if (CHAR_IDENTIFIER == format[index])
6107 {
6108 if (CHAR_IDENTIFIER == format[index + 1])
6109 {
6110 /* Two % in format matches one % in input stream */
6111 if (CHAR_IDENTIFIER == ch)
6112 {
6113 data->InStream(data, &ch);
6114 index += 2;
6115 continue; /* while format chars left */
6116 }
6117 else
6118 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
6119 }
6120
6121 /* Skip the parameter entries */
6122 while (parameters[i].type == FORMAT_PARAMETER)
6123 i++;
6124
6125 flags = parameters[i].flags;
6126 /* Find width */
6127 width = parameters[i].width;
6128 if (flags & FLAGS_WIDTH_PARAMETER)
6129 {
6130 /* Get width from parameter list */
6131 width = (int)parameters[width].data.number.as_signed;
6132 }
6133 /* Find base */
6134 base = parameters[i].base;
6135 if (flags & FLAGS_BASE_PARAMETER)
6136 {
6137 /* Get base from parameter list */
6138 base = (int)parameters[base].data.number.as_signed;
6139 }
6140
6141 switch (parameters[i].type)
6142 {
6143 case FORMAT_INT:
6144 {
6145 trio_uintmax_t number;
6146
6147 if (0 == base)
6148 base = BASE_DECIMAL;
6149
6150 if (!TrioReadNumber(data,
6151 &number,
6152 flags,
6153 width,
6154 base))
6155 return assignment;
6156
6157 if (!(flags & FLAGS_IGNORE))
6158 {
6159 assignment++;
6160
6161 pointer = parameters[i].data.pointer;
6162 #if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
6163 if (flags & FLAGS_SIZE_T)
6164 *(size_t *)pointer = (size_t)number;
6165 else
6166 #endif
6167 #if defined(QUALIFIER_PTRDIFF_T)
6168 if (flags & FLAGS_PTRDIFF_T)
6169 *(ptrdiff_t *)pointer = (ptrdiff_t)number;
6170 else
6171 #endif
6172 #if defined(QUALIFIER_INTMAX_T)
6173 if (flags & FLAGS_INTMAX_T)
6174 *(trio_intmax_t *)pointer = (trio_intmax_t)number;
6175 else
6176 #endif
6177 if (flags & FLAGS_QUAD)
6178 *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)number;
6179 else if (flags & FLAGS_LONG)
6180 *(long int *)pointer = (long int)number;
6181 else if (flags & FLAGS_SHORT)
6182 *(short int *)pointer = (short int)number;
6183 else
6184 *(int *)pointer = (int)number;
6185 }
6186 }
6187 break; /* FORMAT_INT */
6188
6189 case FORMAT_STRING:
6190 #if TRIO_WIDECHAR
6191 if (flags & FLAGS_WIDECHAR)
6192 {
6193 if (!TrioReadWideString(data,
6194 (flags & FLAGS_IGNORE)
6195 ? NULL
6196 : parameters[i].data.wstring,
6197 flags,
6198 width))
6199 return assignment;
6200 }
6201 else
6202 #endif
6203 {
6204 if (!TrioReadString(data,
6205 (flags & FLAGS_IGNORE)
6206 ? NULL
6207 : parameters[i].data.string,
6208 flags,
6209 width))
6210 return assignment;
6211 }
6212 if (!(flags & FLAGS_IGNORE))
6213 assignment++;
6214 break; /* FORMAT_STRING */
6215
6216 case FORMAT_DOUBLE:
6217 {
6218 trio_pointer_t pointer;
6219
6220 if (flags & FLAGS_IGNORE)
6221 {
6222 pointer = NULL;
6223 }
6224 else
6225 {
6226 pointer = (flags & FLAGS_LONGDOUBLE)
6227 ? (trio_pointer_t)parameters[i].data.longdoublePointer
6228 : (trio_pointer_t)parameters[i].data.doublePointer;
6229 }
6230 if (!TrioReadDouble(data, pointer, flags, width))
6231 {
6232 return assignment;
6233 }
6234 if (!(flags & FLAGS_IGNORE))
6235 {
6236 assignment++;
6237 }
6238 break; /* FORMAT_DOUBLE */
6239 }
6240 case FORMAT_GROUP:
6241 {
6242 int characterclass[MAX_CHARACTER_CLASS + 1];
6243 int rc;
6244
6245 /* Skip over modifiers */
6246 while (format[index] != SPECIFIER_GROUP)
6247 {
6248 index++;
6249 }
6250 /* Skip over group specifier */
6251 index++;
6252
6253 memset(characterclass, 0, sizeof(characterclass));
6254 rc = TrioGetCharacterClass(format,
6255 &index,
6256 &flags,
6257 characterclass);
6258 if (rc < 0)
6259 return rc;
6260
6261 if (!TrioReadGroup(data,
6262 (flags & FLAGS_IGNORE)
6263 ? NULL
6264 : parameters[i].data.string,
6265 characterclass,
6266 flags,
6267 parameters[i].width))
6268 return assignment;
6269 if (!(flags & FLAGS_IGNORE))
6270 assignment++;
6271 }
6272 break; /* FORMAT_GROUP */
6273
6274 case FORMAT_COUNT:
6275 pointer = parameters[i].data.pointer;
6276 if (NULL != pointer)
6277 {
6278 int count = data->committed;
6279 if (ch != EOF)
6280 count--; /* a character is read, but is not consumed yet */
6281 #if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
6282 if (flags & FLAGS_SIZE_T)
6283 *(size_t *)pointer = (size_t)count;
6284 else
6285 #endif
6286 #if defined(QUALIFIER_PTRDIFF_T)
6287 if (flags & FLAGS_PTRDIFF_T)
6288 *(ptrdiff_t *)pointer = (ptrdiff_t)count;
6289 else
6290 #endif
6291 #if defined(QUALIFIER_INTMAX_T)
6292 if (flags & FLAGS_INTMAX_T)
6293 *(trio_intmax_t *)pointer = (trio_intmax_t)count;
6294 else
6295 #endif
6296 if (flags & FLAGS_QUAD)
6297 {
6298 *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)count;
6299 }
6300 else if (flags & FLAGS_LONG)
6301 {
6302 *(long int *)pointer = (long int)count;
6303 }
6304 else if (flags & FLAGS_SHORT)
6305 {
6306 *(short int *)pointer = (short int)count;
6307 }
6308 else
6309 {
6310 *(int *)pointer = (int)count;
6311 }
6312 }
6313 break; /* FORMAT_COUNT */
6314
6315 case FORMAT_CHAR:
6316 #if TRIO_WIDECHAR
6317 if (flags & FLAGS_WIDECHAR)
6318 {
6319 if (TrioReadWideChar(data,
6320 (flags & FLAGS_IGNORE)
6321 ? NULL
6322 : parameters[i].data.wstring,
6323 flags,
6324 (width == NO_WIDTH) ? 1 : width) == 0)
6325 return assignment;
6326 }
6327 else
6328 #endif
6329 {
6330 if (TrioReadChar(data,
6331 (flags & FLAGS_IGNORE)
6332 ? NULL
6333 : parameters[i].data.string,
6334 flags,
6335 (width == NO_WIDTH) ? 1 : width) == 0)
6336 return assignment;
6337 }
6338 if (!(flags & FLAGS_IGNORE))
6339 assignment++;
6340 break; /* FORMAT_CHAR */
6341
6342 case FORMAT_POINTER:
6343 if (!TrioReadPointer(data,
6344 (flags & FLAGS_IGNORE)
6345 ? NULL
6346 : (trio_pointer_t *)parameters[i].data.pointer,
6347 flags))
6348 return assignment;
6349 if (!(flags & FLAGS_IGNORE))
6350 assignment++;
6351 break; /* FORMAT_POINTER */
6352
6353 case FORMAT_PARAMETER:
6354 break; /* FORMAT_PARAMETER */
6355
6356 default:
6357 return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
6358 }
6359 ch = data->current;
6360 index = parameters[i].indexAfterSpecifier;
6361 i++;
6362 }
6363 else /* Not an % identifier */
6364 {
6365 if (isspace((int)format[index]))
6366 {
6367 /* Whitespaces may match any amount of whitespaces */
6368 ch = TrioSkipWhitespaces(data);
6369 }
6370 else if (ch == format[index])
6371 {
6372 data->InStream(data, &ch);
6373 }
6374 else
6375 return assignment;
6376
6377 index++;
6378 }
6379 }
6380 return assignment;
6381 }
6382
6383 /*************************************************************************
6384 * TrioScan
6385 */
6386 TRIO_PRIVATE int
6387 TrioScan
6388 TRIO_ARGS6((source, sourceSize, InStream, format, arglist, argarray),
6389 trio_pointer_t source,
6390 size_t sourceSize,
6391 void (*InStream) TRIO_PROTO((trio_class_t *, int *)),
6392 TRIO_CONST char *format,
6393 TRIO_VA_LIST_PTR arglist,
6394 trio_pointer_t *argarray)
6395 {
6396 int status;
6397 trio_parameter_t parameters[MAX_PARAMETERS];
6398 trio_class_t data;
6399
6400 assert(VALID(InStream));
6401 assert(VALID(format));
6402
6403 memset(&data, 0, sizeof(data));
6404 data.InStream = InStream;
6405 data.location = (trio_pointer_t)source;
6406 data.max = sourceSize;
6407 data.error = 0;
6408
6409 #if defined(USE_LOCALE)
6410 if (NULL == internalLocaleValues)
6411 {
6412 TrioSetLocale();
6413 }
6414 #endif
6415
6416 status = TrioParse(TYPE_SCAN, format, parameters, arglist, argarray);
6417 if (status < 0)
6418 return status;
6419
6420 status = TrioScanProcess(&data, format, parameters);
6421 if (data.error != 0)
6422 {
6423 status = data.error;
6424 }
6425 return status;
6426 }
6427
6428 /*************************************************************************
6429 * TrioInStreamFile
6430 */
6431 TRIO_PRIVATE void
6432 TrioInStreamFile
6433 TRIO_ARGS2((self, intPointer),
6434 trio_class_t *self,
6435 int *intPointer)
6436 {
6437 FILE *file;
6438
6439 assert(VALID(self));
6440 assert(VALID(self->location));
6441 assert(VALID(file));
6442
6443 file = (FILE *)self->location;
6444
6445 self->current = fgetc(file);
6446 if (self->current == EOF)
6447 {
6448 self->error = (ferror(file))
6449 ? TRIO_ERROR_RETURN(TRIO_ERRNO, 0)
6450 : TRIO_ERROR_RETURN(TRIO_EOF, 0);
6451 }
6452 else
6453 {
6454 self->processed++;
6455 self->committed++;
6456 }
6457
6458 if (VALID(intPointer))
6459 {
6460 *intPointer = self->current;
6461 }
6462 }
6463
6464 /*************************************************************************
6465 * TrioInStreamFileDescriptor
6466 */
6467 TRIO_PRIVATE void
6468 TrioInStreamFileDescriptor
6469 TRIO_ARGS2((self, intPointer),
6470 trio_class_t *self,
6471 int *intPointer)
6472 {
6473 int fd;
6474 int size;
6475 unsigned char input;
6476
6477 assert(VALID(self));
6478 assert(VALID(self->location));
6479
6480 fd = *((int *)self->location);
6481
6482 size = read(fd, &input, sizeof(char));
6483 if (size == -1)
6484 {
6485 self->error = TRIO_ERROR_RETURN(TRIO_ERRNO, 0);
6486 self->current = EOF;
6487 }
6488 else
6489 {
6490 self->current = (size == 0) ? EOF : input;
6491 }
6492 if (self->current != EOF)
6493 {
6494 self->committed++;
6495 self->processed++;
6496 }
6497
6498 if (VALID(intPointer))
6499 {
6500 *intPointer = self->current;
6501 }
6502 }
6503
6504 /*************************************************************************
6505 * TrioInStreamCustom
6506 */
6507 TRIO_PRIVATE void
6508 TrioInStreamCustom
6509 TRIO_ARGS2((self, intPointer),
6510 trio_class_t *self,
6511 int *intPointer)
6512 {
6513 trio_custom_t *data;
6514
6515 assert(VALID(self));
6516 assert(VALID(self->location));
6517
6518 data = (trio_custom_t *)self->location;
6519
6520 self->current = (data->stream.in == NULL)
6521 ? NIL
6522 : (data->stream.in)(data->closure);
6523
6524 if (self->current == NIL)
6525 {
6526 self->current = EOF;
6527 }
6528 else
6529 {
6530 self->processed++;
6531 self->committed++;
6532 }
6533
6534 if (VALID(intPointer))
6535 {
6536 *intPointer = self->current;
6537 }
6538 }
6539
6540 /*************************************************************************
6541 * TrioInStreamString
6542 */
6543 TRIO_PRIVATE void
6544 TrioInStreamString
6545 TRIO_ARGS2((self, intPointer),
6546 trio_class_t *self,
6547 int *intPointer)
6548 {
6549 unsigned char **buffer;
6550
6551 assert(VALID(self));
6552 assert(VALID(self->location));
6553
6554 buffer = (unsigned char **)self->location;
6555 self->current = (*buffer)[0];
6556 if (self->current == NIL)
6557 {
6558 self->current = EOF;
6559 }
6560 else
6561 {
6562 (*buffer)++;
6563 self->processed++;
6564 self->committed++;
6565 }
6566
6567 if (VALID(intPointer))
6568 {
6569 *intPointer = self->current;
6570 }
6571 }
6572
6573 /*************************************************************************
6574 *
6575 * Formatted scanning functions
6576 *
6577 ************************************************************************/
6578
6579 #if defined(TRIO_DOCUMENTATION)
6580 # include "doc/doc_scanf.h"
6581 #endif
6582 /** @addtogroup Scanf
6583 @{
6584 */
6585
6586 /*************************************************************************
6587 * scanf
6588 */
6589
6590 /**
6591 Scan characters from standard input stream.
6592
6593 @param format Formatting string.
6594 @param ... Arguments.
6595 @return Number of scanned characters.
6596 */
6597 TRIO_PUBLIC int
6598 trio_scanf
6599 TRIO_VARGS2((format, va_alist),
6600 TRIO_CONST char *format,
6601 TRIO_VA_DECL)
6602 {
6603 int status;
6604 va_list args;
6605
6606 assert(VALID(format));
6607
6608 TRIO_VA_START(args, format);
6609 status = TrioScan((trio_pointer_t)stdin, 0,
6610 TrioInStreamFile,
6611 format, TRIO_VA_LIST_ADDR(args), NULL);
6612 TRIO_VA_END(args);
6613 return status;
6614 }
6615
6616 TRIO_PUBLIC int
6617 trio_vscanf
6618 TRIO_ARGS2((format, args),
6619 TRIO_CONST char *format,
6620 va_list args)
6621 {
6622 assert(VALID(format));
6623
6624 return TrioScan((trio_pointer_t)stdin, 0,
6625 TrioInStreamFile,
6626 format, TRIO_VA_LIST_ADDR(args), NULL);
6627 }
6628
6629 TRIO_PUBLIC int
6630 trio_scanfv
6631 TRIO_ARGS2((format, args),
6632 TRIO_CONST char *format,
6633 trio_pointer_t *args)
6634 {
6635 assert(VALID(format));
6636
6637 return TrioScan((trio_pointer_t)stdin, 0,
6638 TrioInStreamFile,
6639 format, NULL, args);
6640 }
6641
6642 /*************************************************************************
6643 * fscanf
6644 */
6645 TRIO_PUBLIC int
6646 trio_fscanf
6647 TRIO_VARGS3((file, format, va_alist),
6648 FILE *file,
6649 TRIO_CONST char *format,
6650 TRIO_VA_DECL)
6651 {
6652 int status;
6653 va_list args;
6654
6655 assert(VALID(file));
6656 assert(VALID(format));
6657
6658 TRIO_VA_START(args, format);
6659 status = TrioScan((trio_pointer_t)file, 0,
6660 TrioInStreamFile,
6661 format, TRIO_VA_LIST_ADDR(args), NULL);
6662 TRIO_VA_END(args);
6663 return status;
6664 }
6665
6666 TRIO_PUBLIC int
6667 trio_vfscanf
6668 TRIO_ARGS3((file, format, args),
6669 FILE *file,
6670 TRIO_CONST char *format,
6671 va_list args)
6672 {
6673 assert(VALID(file));
6674 assert(VALID(format));
6675
6676 return TrioScan((trio_pointer_t)file, 0,
6677 TrioInStreamFile,
6678 format, TRIO_VA_LIST_ADDR(args), NULL);
6679 }
6680
6681 TRIO_PUBLIC int
6682 trio_fscanfv
6683 TRIO_ARGS3((file, format, args),
6684 FILE *file,
6685 TRIO_CONST char *format,
6686 trio_pointer_t *args)
6687 {
6688 assert(VALID(file));
6689 assert(VALID(format));
6690
6691 return TrioScan((trio_pointer_t)file, 0,
6692 TrioInStreamFile,
6693 format, NULL, args);
6694 }
6695
6696 /*************************************************************************
6697 * dscanf
6698 */
6699 TRIO_PUBLIC int
6700 trio_dscanf
6701 TRIO_VARGS3((fd, format, va_alist),
6702 int fd,
6703 TRIO_CONST char *format,
6704 TRIO_VA_DECL)
6705 {
6706 int status;
6707 va_list args;
6708
6709 assert(VALID(format));
6710
6711 TRIO_VA_START(args, format);
6712 status = TrioScan((trio_pointer_t)&fd, 0,
6713 TrioInStreamFileDescriptor,
6714 format, TRIO_VA_LIST_ADDR(args), NULL);
6715 TRIO_VA_END(args);
6716 return status;
6717 }
6718
6719 TRIO_PUBLIC int
6720 trio_vdscanf
6721 TRIO_ARGS3((fd, format, args),
6722 int fd,
6723 TRIO_CONST char *format,
6724 va_list args)
6725 {
6726 assert(VALID(format));
6727
6728 return TrioScan((trio_pointer_t)&fd, 0,
6729 TrioInStreamFileDescriptor,
6730 format, TRIO_VA_LIST_ADDR(args), NULL);
6731 }
6732
6733 TRIO_PUBLIC int
6734 trio_dscanfv
6735 TRIO_ARGS3((fd, format, args),
6736 int fd,
6737 TRIO_CONST char *format,
6738 trio_pointer_t *args)
6739 {
6740 assert(VALID(format));
6741
6742 return TrioScan((trio_pointer_t)&fd, 0,
6743 TrioInStreamFileDescriptor,
6744 format, NULL, args);
6745 }
6746
6747 /*************************************************************************
6748 * cscanf
6749 */
6750 TRIO_PUBLIC int
6751 trio_cscanf
6752 TRIO_VARGS4((stream, closure, format, va_alist),
6753 trio_instream_t stream,
6754 trio_pointer_t closure,
6755 TRIO_CONST char *format,
6756 TRIO_VA_DECL)
6757 {
6758 int status;
6759 va_list args;
6760 trio_custom_t data;
6761
6762 assert(VALID(stream));
6763 assert(VALID(format));
6764
6765 TRIO_VA_START(args, format);
6766 data.stream.in = stream;
6767 data.closure = closure;
6768 status = TrioScan(&data, 0, TrioInStreamCustom, format, TRIO_VA_LIST_ADDR(args), NULL);
6769 TRIO_VA_END(args);
6770 return status;
6771 }
6772
6773 TRIO_PUBLIC int
6774 trio_vcscanf
6775 TRIO_ARGS4((stream, closure, format, args),
6776 trio_instream_t stream,
6777 trio_pointer_t closure,
6778 TRIO_CONST char *format,
6779 va_list args)
6780 {
6781 trio_custom_t data;
6782
6783 assert(VALID(stream));
6784 assert(VALID(format));
6785
6786 data.stream.in = stream;
6787 data.closure = closure;
6788 return TrioScan(&data, 0, TrioInStreamCustom, format, TRIO_VA_LIST_ADDR(args), NULL);
6789 }
6790
6791 TRIO_PUBLIC int
6792 trio_cscanfv
6793 TRIO_ARGS4((stream, closure, format, args),
6794 trio_instream_t stream,
6795 trio_pointer_t closure,
6796 TRIO_CONST char *format,
6797 trio_pointer_t *args)
6798 {
6799 trio_custom_t data;
6800
6801 assert(VALID(stream));
6802 assert(VALID(format));
6803
6804 data.stream.in = stream;
6805 data.closure = closure;
6806 return TrioScan(&data, 0, TrioInStreamCustom, format, NULL, args);
6807 }
6808
6809 /*************************************************************************
6810 * sscanf
6811 */
6812 TRIO_PUBLIC int
6813 trio_sscanf
6814 TRIO_VARGS3((buffer, format, va_alist),
6815 TRIO_CONST char *buffer,
6816 TRIO_CONST char *format,
6817 TRIO_VA_DECL)
6818 {
6819 int status;
6820 va_list args;
6821
6822 assert(VALID(buffer));
6823 assert(VALID(format));
6824
6825 TRIO_VA_START(args, format);
6826 status = TrioScan((trio_pointer_t)&buffer, 0,
6827 TrioInStreamString,
6828 format, TRIO_VA_LIST_ADDR(args), NULL);
6829 TRIO_VA_END(args);
6830 return status;
6831 }
6832
6833 TRIO_PUBLIC int
6834 trio_vsscanf
6835 TRIO_ARGS3((buffer, format, args),
6836 TRIO_CONST char *buffer,
6837 TRIO_CONST char *format,
6838 va_list args)
6839 {
6840 assert(VALID(buffer));
6841 assert(VALID(format));
6842
6843 return TrioScan((trio_pointer_t)&buffer, 0,
6844 TrioInStreamString,
6845 format, TRIO_VA_LIST_ADDR(args), NULL);
6846 }
6847
6848 TRIO_PUBLIC int
6849 trio_sscanfv
6850 TRIO_ARGS3((buffer, format, args),
6851 TRIO_CONST char *buffer,
6852 TRIO_CONST char *format,
6853 trio_pointer_t *args)
6854 {
6855 assert(VALID(buffer));
6856 assert(VALID(format));
6857
6858 return TrioScan((trio_pointer_t)&buffer, 0,
6859 TrioInStreamString,
6860 format, NULL, args);
6861 }
6862
6863 /** @} End of Scanf documentation module */
6864
6865 /*************************************************************************
6866 * trio_strerror
6867 */
6868 TRIO_PUBLIC TRIO_CONST char *
6869 trio_strerror
6870 TRIO_ARGS1((errorcode),
6871 int errorcode)
6872 {
6873 /* Textual versions of the error codes */
6874 switch (TRIO_ERROR_CODE(errorcode))
6875 {
6876 case TRIO_EOF:
6877 return "End of file";
6878 case TRIO_EINVAL:
6879 return "Invalid argument";
6880 case TRIO_ETOOMANY:
6881 return "Too many arguments";
6882 case TRIO_EDBLREF:
6883 return "Double reference";
6884 case TRIO_EGAP:
6885 return "Reference gap";
6886 case TRIO_ENOMEM:
6887 return "Out of memory";
6888 case TRIO_ERANGE:
6889 return "Invalid range";
6890 case TRIO_ECUSTOM:
6891 return "Custom error";
6892 default:
6893 return "Unknown";
6894 }
6895 }
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