diff options
Diffstat (limited to 'bundle/libxml/trio.c')
| -rw-r--r-- | bundle/libxml/trio.c | 6760 |
1 files changed, 6760 insertions, 0 deletions
diff --git a/bundle/libxml/trio.c b/bundle/libxml/trio.c new file mode 100644 index 0000000000..7593e58180 --- /dev/null +++ b/bundle/libxml/trio.c @@ -0,0 +1,6760 @@ +/************************************************************************* + * + * $Id$ + * + * Copyright (C) 1998 Bjorn Reese and Daniel Stenberg. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND + * CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER. + * + ************************************************************************* + * + * A note to trio contributors: + * + * Avoid heap allocation at all costs to ensure that the trio functions + * are async-safe. The exceptions are the printf/fprintf functions, which + * uses fputc, and the asprintf functions and the <alloc> modifier, which + * by design are required to allocate form the heap. + * + ************************************************************************/ + +/* + * TODO: + * - Scan is probably too permissive about its modifiers. + * - C escapes in %#[] ? + * - Multibyte characters (done for format parsing, except scan groups) + * - Complex numbers? (C99 _Complex) + * - Boolean values? (C99 _Bool) + * - C99 NaN(n-char-sequence) missing + * - Should we support the GNU %a alloc modifier? GNU has an ugly hack + * for %a, because C99 used %a for other purposes. If specified as + * %as or %a[ it is interpreted as the alloc modifier, otherwise as + * the C99 hex-float. This means that you cannot scan %as as a hex-float + * immediately followed by an 's'. + * - Scanning of collating symbols. + */ + +/************************************************************************* + * Trio include files + */ +#include "triodef.h" +#include "trio.h" +#include "triop.h" +#include "trionan.h" +#if !defined(TRIO_MINIMAL) +# include "triostr.h" +#endif + +/************************************************************************** + * + * Definitions + * + *************************************************************************/ + +#if defined(__STDC_ISO_10646__) || defined(MB_LEN_MAX) || defined(USE_MULTIBYTE) || TRIO_WIDECHAR +# define TRIO_COMPILER_SUPPORTS_MULTIBYTE +# if !defined(MB_LEN_MAX) +# define MB_LEN_MAX 6 +# endif +#endif + +/************************************************************************* + * Generic definitions + */ + +#if !(defined(DEBUG) || defined(NDEBUG)) +# define NDEBUG +#endif +#include <assert.h> +#include <ctype.h> +#if !defined(TRIO_COMPILER_SUPPORTS_C99) +# define isblank(x) (((x)==32) || ((x)==9)) +#endif +#include <math.h> +#include <limits.h> +#include <float.h> +#if defined(TRIO_COMPILER_ANCIENT) +# include <varargs.h> +#else +# include <stdarg.h> +#endif +#include <stddef.h> +#include <errno.h> + +#ifndef NULL +# define NULL 0 +#endif +#define NIL ((char)0) +#ifndef FALSE +# define FALSE (1 == 0) +# define TRUE (! FALSE) +#endif +#define BOOLEAN_T int + +/* mincore() can be used for debugging purposes */ +#define VALID(x) (NULL != (x)) + +#if TRIO_ERRORS + /* + * Encode the error code and the position. This is decoded + * with TRIO_ERROR_CODE and TRIO_ERROR_POSITION. + */ +# define TRIO_ERROR_RETURN(x,y) (- ((x) + ((y) << 8))) +#else +# define TRIO_ERROR_RETURN(x,y) (-1) +#endif + + +/************************************************************************* + * Platform specific definitions + */ +#if defined(TRIO_PLATFORM_UNIX) +# include <unistd.h> +# include <signal.h> +# include <locale.h> +# define USE_LOCALE +#endif /* TRIO_PLATFORM_UNIX */ +#if defined(TRIO_PLATFORM_VMS) +# include <unistd.h> +#endif +#if defined(TRIO_PLATFORM_WIN32) +# include <io.h> +# define read _read +# define write _write +#endif /* TRIO_PLATFORM_WIN32 */ + +#define TRIO_MSVC_VERSION_5 1100 + +#if TRIO_WIDECHAR +# if defined(TRIO_COMPILER_SUPPORTS_ISO94) +# include <wchar.h> +# include <wctype.h> +typedef wchar_t trio_wchar_t; +typedef wint_t trio_wint_t; +# else +typedef char trio_wchar_t; +typedef int trio_wint_t; +# define WCONST(x) L ## x +# define WEOF EOF +# define iswalnum(x) isalnum(x) +# define iswalpha(x) isalpha(x) +# define iswblank(x) isblank(x) +# define iswcntrl(x) iscntrl(x) +# define iswdigit(x) isdigit(x) +# define iswgraph(x) isgraph(x) +# define iswlower(x) islower(x) +# define iswprint(x) isprint(x) +# define iswpunct(x) ispunct(x) +# define iswspace(x) isspace(x) +# define iswupper(x) isupper(x) +# define iswxdigit(x) isxdigit(x) +# endif +#endif + + +/************************************************************************* + * Compiler dependent definitions + */ + +/* Support for long long */ +#ifndef __cplusplus +# if !defined(USE_LONGLONG) +# if defined(TRIO_COMPILER_GCC) && !defined(__STRICT_ANSI__) +# define USE_LONGLONG +# elif defined(TRIO_COMPILER_SUNPRO) +# define USE_LONGLONG +# elif defined(_LONG_LONG) || defined(_LONGLONG) +# define USE_LONGLONG +# endif +# endif +#endif + +/* The extra long numbers */ +#if defined(USE_LONGLONG) +typedef signed long long int trio_longlong_t; +typedef unsigned long long int trio_ulonglong_t; +#elif defined(TRIO_COMPILER_MSVC) +# if (_MSC_VER >= TRIO_MSVC_VERSION_5) +typedef signed __int64 trio_longlong_t; +typedef unsigned __int64 trio_ulonglong_t; +# else +typedef signed long int trio_longlong_t; +typedef unsigned long int trio_ulonglong_t; +# endif +#else +typedef TRIO_SIGNED long int trio_longlong_t; +typedef unsigned long int trio_ulonglong_t; +#endif + +/* Maximal and fixed integer types */ +#if defined(TRIO_COMPILER_SUPPORTS_C99) +# include <stdint.h> +typedef intmax_t trio_intmax_t; +typedef uintmax_t trio_uintmax_t; +typedef int8_t trio_int8_t; +typedef int16_t trio_int16_t; +typedef int32_t trio_int32_t; +typedef int64_t trio_int64_t; +#elif defined(TRIO_COMPILER_SUPPORTS_UNIX98) +# include <inttypes.h> +typedef intmax_t trio_intmax_t; +typedef uintmax_t trio_uintmax_t; +typedef int8_t trio_int8_t; +typedef int16_t trio_int16_t; +typedef int32_t trio_int32_t; +typedef int64_t trio_int64_t; +#elif defined(TRIO_COMPILER_MSVC) && (_MSC_VER >= TRIO_MSVC_VERSION_5) +typedef trio_longlong_t trio_intmax_t; +typedef trio_ulonglong_t trio_uintmax_t; +typedef __int8 trio_int8_t; +typedef __int16 trio_int16_t; +typedef __int32 trio_int32_t; +typedef __int64 trio_int64_t; +#else +typedef trio_longlong_t trio_intmax_t; +typedef trio_ulonglong_t trio_uintmax_t; +# if defined(TRIO_INT8_T) +typedef TRIO_INT8_T trio_int8_t; +# else +typedef TRIO_SIGNED char trio_int8_t; +# endif +# if defined(TRIO_INT16_T) +typedef TRIO_INT16_T trio_int16_t; +# else +typedef TRIO_SIGNED short trio_int16_t; +# endif +# if defined(TRIO_INT32_T) +typedef TRIO_INT32_T trio_int32_t; +# else +typedef TRIO_SIGNED int trio_int32_t; +# endif +# if defined(TRIO_INT64_T) +typedef TRIO_INT64_T trio_int64_t; +# else +typedef trio_longlong_t trio_int64_t; +# endif +#endif + +#if !(defined(TRIO_COMPILER_SUPPORTS_C99) \ + || defined(TRIO_COMPILER_SUPPORTS_UNIX01)) +# define floorl(x) floor((double)(x)) +# define fmodl(x,y) fmod((double)(x),(double)(y)) +# define powl(x,y) pow((double)(x),(double)(y)) +#endif + +#define TRIO_FABS(x) (((x) < 0.0) ? -(x) : (x)) + +/************************************************************************* + * Internal Definitions + */ + +#ifndef DECIMAL_DIG +# define DECIMAL_DIG DBL_DIG +#endif + +/* Long double sizes */ +#ifdef LDBL_DIG +# define MAX_MANTISSA_DIGITS LDBL_DIG +# define MAX_EXPONENT_DIGITS 4 +# define MAX_DOUBLE_DIGITS LDBL_MAX_10_EXP +#else +# define MAX_MANTISSA_DIGITS DECIMAL_DIG +# define MAX_EXPONENT_DIGITS 3 +# define MAX_DOUBLE_DIGITS DBL_MAX_10_EXP +#endif + +#if defined(TRIO_COMPILER_ANCIENT) || !defined(LDBL_DIG) +# undef LDBL_DIG +# undef LDBL_MANT_DIG +# undef LDBL_EPSILON +# define LDBL_DIG DBL_DIG +# define LDBL_MANT_DIG DBL_MANT_DIG +# define LDBL_EPSILON DBL_EPSILON +#endif + +/* The maximal number of digits is for base 2 */ +#define MAX_CHARS_IN(x) (sizeof(x) * CHAR_BIT) +/* The width of a pointer. The number of bits in a hex digit is 4 */ +#define POINTER_WIDTH ((sizeof("0x") - 1) + sizeof(trio_pointer_t) * CHAR_BIT / 4) + +/* Infinite and Not-A-Number for floating-point */ +#define INFINITE_LOWER "inf" +#define INFINITE_UPPER "INF" +#define LONG_INFINITE_LOWER "infinite" +#define LONG_INFINITE_UPPER "INFINITE" +#define NAN_LOWER "nan" +#define NAN_UPPER "NAN" + +/* Various constants */ +enum { + TYPE_PRINT = 1, + TYPE_SCAN = 2, + + /* Flags. Use maximum 32 */ + FLAGS_NEW = 0, + FLAGS_STICKY = 1, + FLAGS_SPACE = 2 * FLAGS_STICKY, + FLAGS_SHOWSIGN = 2 * FLAGS_SPACE, + FLAGS_LEFTADJUST = 2 * FLAGS_SHOWSIGN, + FLAGS_ALTERNATIVE = 2 * FLAGS_LEFTADJUST, + FLAGS_SHORT = 2 * FLAGS_ALTERNATIVE, + FLAGS_SHORTSHORT = 2 * FLAGS_SHORT, + FLAGS_LONG = 2 * FLAGS_SHORTSHORT, + FLAGS_QUAD = 2 * FLAGS_LONG, + FLAGS_LONGDOUBLE = 2 * FLAGS_QUAD, + FLAGS_SIZE_T = 2 * FLAGS_LONGDOUBLE, + FLAGS_PTRDIFF_T = 2 * FLAGS_SIZE_T, + FLAGS_INTMAX_T = 2 * FLAGS_PTRDIFF_T, + FLAGS_NILPADDING = 2 * FLAGS_INTMAX_T, + FLAGS_UNSIGNED = 2 * FLAGS_NILPADDING, + FLAGS_UPPER = 2 * FLAGS_UNSIGNED, + FLAGS_WIDTH = 2 * FLAGS_UPPER, + FLAGS_WIDTH_PARAMETER = 2 * FLAGS_WIDTH, + FLAGS_PRECISION = 2 * FLAGS_WIDTH_PARAMETER, + FLAGS_PRECISION_PARAMETER = 2 * FLAGS_PRECISION, + FLAGS_BASE = 2 * FLAGS_PRECISION_PARAMETER, + FLAGS_BASE_PARAMETER = 2 * FLAGS_BASE, + FLAGS_FLOAT_E = 2 * FLAGS_BASE_PARAMETER, + FLAGS_FLOAT_G = 2 * FLAGS_FLOAT_E, + FLAGS_QUOTE = 2 * FLAGS_FLOAT_G, + FLAGS_WIDECHAR = 2 * FLAGS_QUOTE, + FLAGS_ALLOC = 2 * FLAGS_WIDECHAR, + FLAGS_IGNORE = 2 * FLAGS_ALLOC, + FLAGS_IGNORE_PARAMETER = 2 * FLAGS_IGNORE, + FLAGS_VARSIZE_PARAMETER = 2 * FLAGS_IGNORE_PARAMETER, + FLAGS_FIXED_SIZE = 2 * FLAGS_VARSIZE_PARAMETER, + /* Reused flags */ + FLAGS_EXCLUDE = FLAGS_SHORT, + FLAGS_USER_DEFINED = FLAGS_IGNORE, + FLAGS_ROUNDING = FLAGS_INTMAX_T, + /* Compounded flags */ + FLAGS_ALL_VARSIZES = FLAGS_LONG | FLAGS_QUAD | FLAGS_INTMAX_T | FLAGS_PTRDIFF_T | FLAGS_SIZE_T, + FLAGS_ALL_SIZES = FLAGS_ALL_VARSIZES | FLAGS_SHORTSHORT | FLAGS_SHORT, + + NO_POSITION = -1, + NO_WIDTH = 0, + NO_PRECISION = -1, + NO_SIZE = -1, + + /* Do not change these */ + NO_BASE = -1, + MIN_BASE = 2, + MAX_BASE = 36, + BASE_BINARY = 2, + BASE_OCTAL = 8, + BASE_DECIMAL = 10, + BASE_HEX = 16, + + /* Maximal number of allowed parameters */ + MAX_PARAMETERS = 64, + /* Maximal number of characters in class */ + MAX_CHARACTER_CLASS = UCHAR_MAX + 1, + + /* Maximal string lengths for user-defined specifiers */ + MAX_USER_NAME = 64, + MAX_USER_DATA = 256, + + /* Maximal length of locale separator strings */ + MAX_LOCALE_SEPARATOR_LENGTH = MB_LEN_MAX, + /* Maximal number of integers in grouping */ + MAX_LOCALE_GROUPS = 64, + + /* Initial size of asprintf buffer */ + DYNAMIC_START_SIZE = 32 +}; + +#define NO_GROUPING ((int)CHAR_MAX) + +/* Fundamental formatting parameter types */ +#define FORMAT_UNKNOWN 0 +#define FORMAT_INT 1 +#define FORMAT_DOUBLE 2 +#define FORMAT_CHAR 3 +#define FORMAT_STRING 4 +#define FORMAT_POINTER 5 +#define FORMAT_COUNT 6 +#define FORMAT_PARAMETER 7 +#define FORMAT_GROUP 8 +#if TRIO_GNU +# define FORMAT_ERRNO 9 +#endif +#if TRIO_EXTENSION +# define FORMAT_USER_DEFINED 10 +#endif + +/* Character constants */ +#define CHAR_IDENTIFIER '%' +#define CHAR_BACKSLASH '\\' +#define CHAR_QUOTE '\"' +#define CHAR_ADJUST ' ' + +/* Character class expressions */ +#define CLASS_ALNUM "[:alnum:]" +#define CLASS_ALPHA "[:alpha:]" +#define CLASS_BLANK "[:blank:]" +#define CLASS_CNTRL "[:cntrl:]" +#define CLASS_DIGIT "[:digit:]" +#define CLASS_GRAPH "[:graph:]" +#define CLASS_LOWER "[:lower:]" +#define CLASS_PRINT "[:print:]" +#define CLASS_PUNCT "[:punct:]" +#define CLASS_SPACE "[:space:]" +#define CLASS_UPPER "[:upper:]" +#define CLASS_XDIGIT "[:xdigit:]" + +/* + * SPECIFIERS: + * + * + * a Hex-float + * A Hex-float + * c Character + * C Widechar character (wint_t) + * d Decimal + * e Float + * E Float + * F Float + * F Float + * g Float + * G Float + * i Integer + * m Error message + * n Count + * o Octal + * p Pointer + * s String + * S Widechar string (wchar_t *) + * u Unsigned + * x Hex + * X Hex + * [] Group + * <> User-defined + * + * Reserved: + * + * D Binary Coded Decimal %D(length,precision) (OS/390) + */ +#define SPECIFIER_CHAR 'c' +#define SPECIFIER_STRING 's' +#define SPECIFIER_DECIMAL 'd' +#define SPECIFIER_INTEGER 'i' +#define SPECIFIER_UNSIGNED 'u' +#define SPECIFIER_OCTAL 'o' +#define SPECIFIER_HEX 'x' +#define SPECIFIER_HEX_UPPER 'X' +#define SPECIFIER_FLOAT_E 'e' +#define SPECIFIER_FLOAT_E_UPPER 'E' +#define SPECIFIER_FLOAT_F 'f' +#define SPECIFIER_FLOAT_F_UPPER 'F' +#define SPECIFIER_FLOAT_G 'g' +#define SPECIFIER_FLOAT_G_UPPER 'G' +#define SPECIFIER_POINTER 'p' +#define SPECIFIER_GROUP '[' +#define SPECIFIER_UNGROUP ']' +#define SPECIFIER_COUNT 'n' +#if TRIO_UNIX98 +# define SPECIFIER_CHAR_UPPER 'C' +# define SPECIFIER_STRING_UPPER 'S' +#endif +#if TRIO_C99 +# define SPECIFIER_HEXFLOAT 'a' +# define SPECIFIER_HEXFLOAT_UPPER 'A' +#endif +#if TRIO_GNU +# define SPECIFIER_ERRNO 'm' +#endif +#if TRIO_EXTENSION +# define SPECIFIER_BINARY 'b' +# define SPECIFIER_BINARY_UPPER 'B' +# define SPECIFIER_USER_DEFINED_BEGIN '<' +# define SPECIFIER_USER_DEFINED_END '>' +# define SPECIFIER_USER_DEFINED_SEPARATOR ':' +#endif + +/* + * QUALIFIERS: + * + * + * Numbers = d,i,o,u,x,X + * Float = a,A,e,E,f,F,g,G + * String = s + * Char = c + * + * + * 9$ Position + * Use the 9th parameter. 9 can be any number between 1 and + * the maximal argument + * + * 9 Width + * Set width to 9. 9 can be any number, but must not be postfixed + * by '$' + * + * h Short + * Numbers: + * (unsigned) short int + * + * hh Short short + * Numbers: + * (unsigned) char + * + * l Long + * Numbers: + * (unsigned) long int + * String: + * as the S specifier + * Char: + * as the C specifier + * + * ll Long Long + * Numbers: + * (unsigned) long long int + * + * L Long Double + * Float + * long double + * + * # Alternative + * Float: + * Decimal-point is always present + * String: + * non-printable characters are handled as \number + * + * Spacing + * + * + Sign + * + * - Alignment + * + * . Precision + * + * * Parameter + * print: use parameter + * scan: no parameter (ignore) + * + * q Quad + * + * Z size_t + * + * w Widechar + * + * ' Thousands/quote + * Numbers: + * Integer part grouped in thousands + * Binary numbers: + * Number grouped in nibbles (4 bits) + * String: + * Quoted string + * + * j intmax_t + * t prtdiff_t + * z size_t + * + * ! Sticky + * @ Parameter (for both print and scan) + * + * I n-bit Integer + * Numbers: + * The following options exists + * I8 = 8-bit integer + * I16 = 16-bit integer + * I32 = 32-bit integer + * I64 = 64-bit integer + */ +#define QUALIFIER_POSITION '$' +#define QUALIFIER_SHORT 'h' +#define QUALIFIER_LONG 'l' +#define QUALIFIER_LONG_UPPER 'L' +#define QUALIFIER_ALTERNATIVE '#' +#define QUALIFIER_SPACE ' ' +#define QUALIFIER_PLUS '+' +#define QUALIFIER_MINUS '-' +#define QUALIFIER_DOT '.' +#define QUALIFIER_STAR '*' +#define QUALIFIER_CIRCUMFLEX '^' /* For scanlists */ +#if TRIO_C99 +# define QUALIFIER_SIZE_T 'z' +# define QUALIFIER_PTRDIFF_T 't' +# define QUALIFIER_INTMAX_T 'j' +#endif +#if TRIO_BSD || TRIO_GNU +# define QUALIFIER_QUAD 'q' +#endif +#if TRIO_GNU +# define QUALIFIER_SIZE_T_UPPER 'Z' +#endif +#if TRIO_MISC +# define QUALIFIER_WIDECHAR 'w' +#endif +#if TRIO_MICROSOFT +# define QUALIFIER_FIXED_SIZE 'I' +#endif +#if TRIO_EXTENSION +# define QUALIFIER_QUOTE '\'' +# define QUALIFIER_STICKY '!' +# define QUALIFIER_VARSIZE '&' /* This should remain undocumented */ +# define QUALIFIER_PARAM '@' /* Experimental */ +# define QUALIFIER_COLON ':' /* For scanlists */ +# define QUALIFIER_EQUAL '=' /* For scanlists */ +# define QUALIFIER_ROUNDING_UPPER 'R' +#endif + + +/************************************************************************* + * + * Internal Structures + * + *************************************************************************/ + +/* Parameters */ +typedef struct { + /* An indication of which entry in the data union is used */ + int type; + /* The flags */ + unsigned long flags; + /* The width qualifier */ + int width; + /* The precision qualifier */ + int precision; + /* The base qualifier */ + int base; + /* The size for the variable size qualifier */ + int varsize; + /* The marker of the end of the specifier */ + int indexAfterSpecifier; + /* The data from the argument list */ + union { + char *string; +#if TRIO_WIDECHAR + trio_wchar_t *wstring; +#endif + trio_pointer_t pointer; + union { + trio_intmax_t as_signed; + trio_uintmax_t as_unsigned; + } number; + double doubleNumber; + double *doublePointer; + trio_long_double_t longdoubleNumber; + trio_long_double_t *longdoublePointer; + int errorNumber; + } data; + /* For the user-defined specifier */ + char user_name[MAX_USER_NAME]; + char user_data[MAX_USER_DATA]; +} trio_parameter_t; + +/* Container for customized functions */ +typedef struct { + union { + trio_outstream_t out; + trio_instream_t in; + } stream; + trio_pointer_t closure; +} trio_custom_t; + +/* General trio "class" */ +typedef struct _trio_class_t { + /* + * The function to write characters to a stream. + */ + void (*OutStream) TRIO_PROTO((struct _trio_class_t *, int)); + /* + * The function to read characters from a stream. + */ + void (*InStream) TRIO_PROTO((struct _trio_class_t *, int *)); + /* + * The current location in the stream. + */ + trio_pointer_t location; + /* + * The character currently being processed. + */ + int current; + /* + * The number of characters that would have been written/read + * if there had been sufficient space. + */ + int processed; + /* + * The number of characters that are actually written/read. + * Processed and committed will only differ for the *nprintf + * and *nscanf functions. + */ + int committed; + /* + * The upper limit of characters that may be written/read. + */ + int max; + /* + * The last output error that was detected. + */ + int error; +} trio_class_t; + +/* References (for user-defined callbacks) */ +typedef struct _trio_reference_t { + trio_class_t *data; + trio_parameter_t *parameter; +} trio_reference_t; + +/* Registered entries (for user-defined callbacks) */ +typedef struct _trio_userdef_t { + struct _trio_userdef_t *next; + trio_callback_t callback; + char *name; +} trio_userdef_t; + + +/************************************************************************* + * + * Internal Variables + * + *************************************************************************/ + +static TRIO_CONST char rcsid[] = "@(#)$Id$"; + +/* + * Need this to workaround a parser bug in HP C/iX compiler that fails + * to resolves macro definitions that includes type 'long double', + * e.g: va_arg(arg_ptr, long double) + */ +#if defined(TRIO_PLATFORM_MPEIX) +static TRIO_CONST trio_long_double_t ___dummy_long_double = 0; +#endif + +static TRIO_CONST char internalNullString[] = "(nil)"; + +#if defined(USE_LOCALE) +static struct lconv *internalLocaleValues = NULL; +#endif + +/* + * UNIX98 says "in a locale where the radix character is not defined, + * the radix character defaults to a period (.)" + */ +static int internalDecimalPointLength = 1; +static int internalThousandSeparatorLength = 1; +static char internalDecimalPoint = '.'; +static char internalDecimalPointString[MAX_LOCALE_SEPARATOR_LENGTH + 1] = "."; +static char internalThousandSeparator[MAX_LOCALE_SEPARATOR_LENGTH + 1] = ","; +static char internalGrouping[MAX_LOCALE_GROUPS] = { (char)NO_GROUPING }; + +static TRIO_CONST char internalDigitsLower[] = "0123456789abcdefghijklmnopqrstuvwxyz"; +static TRIO_CONST char internalDigitsUpper[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; +static BOOLEAN_T internalDigitsUnconverted = TRUE; +static int internalDigitArray[128]; +#if TRIO_EXTENSION +static BOOLEAN_T internalCollationUnconverted = TRUE; +static char internalCollationArray[MAX_CHARACTER_CLASS][MAX_CHARACTER_CLASS]; +#endif + +#if TRIO_EXTENSION +static TRIO_VOLATILE trio_callback_t internalEnterCriticalRegion = NULL; +static TRIO_VOLATILE trio_callback_t internalLeaveCriticalRegion = NULL; +static trio_userdef_t *internalUserDef = NULL; +#endif + + +/************************************************************************* + * + * Internal Functions + * + ************************************************************************/ + +#if defined(TRIO_MINIMAL) +# define TRIO_STRING_PUBLIC static +# include "triostr.c" +#endif /* defined(TRIO_MINIMAL) */ + +/************************************************************************* + * TrioIsQualifier + * + * Description: + * Remember to add all new qualifiers to this function. + * QUALIFIER_POSITION must not be added. + */ +TRIO_PRIVATE BOOLEAN_T +TrioIsQualifier +TRIO_ARGS1((character), + TRIO_CONST char character) +{ + /* QUALIFIER_POSITION is not included */ + switch (character) + { + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + case QUALIFIER_PLUS: + case QUALIFIER_MINUS: + case QUALIFIER_SPACE: + case QUALIFIER_DOT: + case QUALIFIER_STAR: + case QUALIFIER_ALTERNATIVE: + case QUALIFIER_SHORT: + case QUALIFIER_LONG: + case QUALIFIER_LONG_UPPER: + case QUALIFIER_CIRCUMFLEX: +#if defined(QUALIFIER_SIZE_T) + case QUALIFIER_SIZE_T: +#endif +#if defined(QUALIFIER_PTRDIFF_T) + case QUALIFIER_PTRDIFF_T: +#endif +#if defined(QUALIFIER_INTMAX_T) + case QUALIFIER_INTMAX_T: +#endif +#if defined(QUALIFIER_QUAD) + case QUALIFIER_QUAD: +#endif +#if defined(QUALIFIER_SIZE_T_UPPER) + case QUALIFIER_SIZE_T_UPPER: +#endif +#if defined(QUALIFIER_WIDECHAR) + case QUALIFIER_WIDECHAR: +#endif +#if defined(QUALIFIER_QUOTE) + case QUALIFIER_QUOTE: +#endif +#if defined(QUALIFIER_STICKY) + case QUALIFIER_STICKY: +#endif +#if defined(QUALIFIER_VARSIZE) + case QUALIFIER_VARSIZE: +#endif +#if defined(QUALIFIER_PARAM) + case QUALIFIER_PARAM: +#endif +#if defined(QUALIFIER_FIXED_SIZE) + case QUALIFIER_FIXED_SIZE: +#endif +#if defined(QUALIFIER_ROUNDING_UPPER) + case QUALIFIER_ROUNDING_UPPER: +#endif + return TRUE; + default: + return FALSE; + } +} + +/************************************************************************* + * TrioSetLocale + */ +#if defined(USE_LOCALE) +TRIO_PRIVATE void +TrioSetLocale(TRIO_NOARGS) +{ + internalLocaleValues = (struct lconv *)localeconv(); + if (internalLocaleValues) + { + if ((internalLocaleValues->decimal_point) && + (internalLocaleValues->decimal_point[0] != NIL)) + { + internalDecimalPointLength = trio_length(internalLocaleValues->decimal_point); + if (internalDecimalPointLength == 1) + { + internalDecimalPoint = internalLocaleValues->decimal_point[0]; + } + else + { + internalDecimalPoint = NIL; + trio_copy_max(internalDecimalPointString, + sizeof(internalDecimalPointString), + internalLocaleValues->decimal_point); + } + } + if ((internalLocaleValues->thousands_sep) && + (internalLocaleValues->thousands_sep[0] != NIL)) + { + trio_copy_max(internalThousandSeparator, + sizeof(internalThousandSeparator), + internalLocaleValues->thousands_sep); + internalThousandSeparatorLength = trio_length(internalThousandSeparator); + } + if ((internalLocaleValues->grouping) && + (internalLocaleValues->grouping[0] != NIL)) + { + trio_copy_max(internalGrouping, + sizeof(internalGrouping), + internalLocaleValues->grouping); + } + } +} +#endif /* defined(USE_LOCALE) */ + +TRIO_PRIVATE int +TrioCalcThousandSeparatorLength +TRIO_ARGS1((digits), + int digits) +{ +#if TRIO_EXTENSION + int count = 0; + int step = NO_GROUPING; + char *groupingPointer = internalGrouping; + + while (digits > 0) + { + if (*groupingPointer == CHAR_MAX) + { + /* Disable grouping */ + break; /* while */ + } + else if (*groupingPointer == 0) + { + /* Repeat last group */ + if (step == NO_GROUPING) + { + /* Error in locale */ + break; /* while */ + } + } + else + { + step = *groupingPointer++; + } + if (digits > step) + count += internalThousandSeparatorLength; + digits -= step; + } + return count; +#else + return 0; +#endif +} + +TRIO_PRIVATE BOOLEAN_T +TrioFollowedBySeparator +TRIO_ARGS1((position), + int position) +{ +#if TRIO_EXTENSION + int step = 0; + char *groupingPointer = internalGrouping; + + position--; + if (position == 0) + return FALSE; + while (position > 0) + { + if (*groupingPointer == CHAR_MAX) + { + /* Disable grouping */ + break; /* while */ + } + else if (*groupingPointer != 0) + { + step = *groupingPointer++; + } + if (step == 0) + break; + position -= step; + } + return (position == 0); +#else + return FALSE; +#endif +} + +/************************************************************************* + * TrioGetPosition + * + * Get the %n$ position. + */ +TRIO_PRIVATE int +TrioGetPosition +TRIO_ARGS2((format, indexPointer), + TRIO_CONST char *format, + int *indexPointer) +{ +#if TRIO_UNIX98 + char *tmpformat; + int number = 0; + int index = *indexPointer; + + number = (int)trio_to_long(&format[index], &tmpformat, BASE_DECIMAL); + index = (int)(tmpformat - format); + if ((number != 0) && (QUALIFIER_POSITION == format[index++])) + { + *indexPointer = index; + /* + * number is decreased by 1, because n$ starts from 1, whereas + * the array it is indexing starts from 0. + */ + return number - 1; + } +#endif + return NO_POSITION; +} + +#if TRIO_EXTENSION +/************************************************************************* + * TrioFindNamespace + * + * Find registered user-defined specifier. + * The prev argument is used for optimization only. + */ +TRIO_PRIVATE trio_userdef_t * +TrioFindNamespace +TRIO_ARGS2((name, prev), + TRIO_CONST char *name, + trio_userdef_t **prev) +{ + trio_userdef_t *def; + + if (internalEnterCriticalRegion) + (void)internalEnterCriticalRegion(NULL); + + for (def = internalUserDef; def; def = def->next) + { + /* Case-sensitive string comparison */ + if (trio_equal_case(def->name, name)) + break; + + if (prev) + *prev = def; + } + + if (internalLeaveCriticalRegion) + (void)internalLeaveCriticalRegion(NULL); + + return def; +} +#endif + +/************************************************************************* + * TrioPower + * + * Description: + * Calculate pow(base, exponent), where number and exponent are integers. + */ +TRIO_PRIVATE trio_long_double_t +TrioPower +TRIO_ARGS2((number, exponent), + int number, + int exponent) +{ + trio_long_double_t result; + + if (number == 10) + { + switch (exponent) + { + /* Speed up calculation of common cases */ + case 0: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E-1); + break; + case 1: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+0); + break; + case 2: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+1); + break; + case 3: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+2); + break; + case 4: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+3); + break; + case 5: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+4); + break; + case 6: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+5); + break; + case 7: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+6); + break; + case 8: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+7); + break; + case 9: + result = (trio_long_double_t)number * TRIO_SUFFIX_LONG(1E+8); + break; + default: + result = powl((trio_long_double_t)number, + (trio_long_double_t)exponent); + break; + } + } + else + { + return powl((trio_long_double_t)number, (trio_long_double_t)exponent); + } + return result; +} + +/************************************************************************* + * TrioLogarithm + */ +TRIO_PRIVATE double +TrioLogarithm +TRIO_ARGS2((number, base), + double number, + int base) +{ + double result; + + if (number <= 0.0) + { + /* xlC crashes on log(0) */ + result = (number == 0.0) ? trio_ninf() : trio_nan(); + } + else + { + if (base == 10) + { + result = log10(number); + } + else + { + result = log10(number) / log10((double)base); + } + } + return result; +} + +/************************************************************************* + * TrioLogarithmBase + */ +TRIO_PRIVATE double +TrioLogarithmBase +TRIO_ARGS1((base), + int base) +{ + switch (base) + { + case BASE_BINARY : return 1.0; + case BASE_OCTAL : return 3.0; + case BASE_DECIMAL: return 3.321928094887362345; + case BASE_HEX : return 4.0; + default : return TrioLogarithm((double)base, 2); + } +} + +/************************************************************************* + * TrioParse + * + * Description: + * Parse the format string + */ +TRIO_PRIVATE int +TrioParse +TRIO_ARGS5((type, format, parameters, arglist, argarray), + int type, + TRIO_CONST char *format, + trio_parameter_t *parameters, + va_list *arglist, + trio_pointer_t *argarray) +{ + /* Count the number of times a parameter is referenced */ + unsigned short usedEntries[MAX_PARAMETERS]; + /* Parameter counters */ + int parameterPosition; + int currentParam; + int maxParam = -1; + /* Utility variables */ + unsigned long flags; + int width; + int precision; + int varsize; + int base; + int index; /* Index into formatting string */ + int dots; /* Count number of dots in modifier part */ + BOOLEAN_T positional; /* Does the specifier have a positional? */ + BOOLEAN_T gotSticky = FALSE; /* Are there any sticky modifiers at all? */ + /* + * indices specifies the order in which the parameters must be + * read from the va_args (this is necessary to handle positionals) + */ + int indices[MAX_PARAMETERS]; + int pos = 0; + /* Various variables */ + char ch; +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + int charlen; +#endif + int save_errno; + int i = -1; + int num; + char *tmpformat; + + /* One and only one of arglist and argarray must be used */ + assert((arglist != NULL) ^ (argarray != NULL)); + + /* + * The 'parameters' array is not initialized, but we need to + * know which entries we have used. + */ + memset(usedEntries, 0, sizeof(usedEntries)); + + save_errno = errno; + index = 0; + parameterPosition = 0; +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + (void)mblen(NULL, 0); +#endif + + while (format[index]) + { +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + if (! isascii(format[index])) + { + /* + * Multibyte characters cannot be legal specifiers or + * modifiers, so we skip over them. + */ + charlen = mblen(&format[index], MB_LEN_MAX); + index += (charlen > 0) ? charlen : 1; + continue; /* while */ + } +#endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */ + if (CHAR_IDENTIFIER == format[index++]) + { + if (CHAR_IDENTIFIER == format[index]) + { + index++; + continue; /* while */ + } + + flags = FLAGS_NEW; + dots = 0; + currentParam = TrioGetPosition(format, &index); + positional = (NO_POSITION != currentParam); + if (!positional) + { + /* We have no positional, get the next counter */ + currentParam = parameterPosition; + } + if(currentParam >= MAX_PARAMETERS) + { + /* Bail out completely to make the error more obvious */ + return TRIO_ERROR_RETURN(TRIO_ETOOMANY, index); + } + + if (currentParam > maxParam) + maxParam = currentParam; + + /* Default values */ + width = NO_WIDTH; + precision = NO_PRECISION; + base = NO_BASE; + varsize = NO_SIZE; + + while (TrioIsQualifier(format[index])) + { + ch = format[index++]; + + switch (ch) + { + case QUALIFIER_SPACE: + flags |= FLAGS_SPACE; + break; + + case QUALIFIER_PLUS: + flags |= FLAGS_SHOWSIGN; + break; + + case QUALIFIER_MINUS: + flags |= FLAGS_LEFTADJUST; + flags &= ~FLAGS_NILPADDING; + break; + + case QUALIFIER_ALTERNATIVE: + flags |= FLAGS_ALTERNATIVE; + break; + + case QUALIFIER_DOT: + if (dots == 0) /* Precision */ + { + dots++; + + /* Skip if no precision */ + if (QUALIFIER_DOT == format[index]) + break; + + /* After the first dot we have the precision */ + flags |= FLAGS_PRECISION; + if ((QUALIFIER_STAR == format[index]) +#if defined(QUALIFIER_PARAM) + || (QUALIFIER_PARAM == format[index]) +#endif + ) + { + index++; + flags |= FLAGS_PRECISION_PARAMETER; + + precision = TrioGetPosition(format, &index); + if (precision == NO_POSITION) + { + parameterPosition++; + if (positional) + precision = parameterPosition; + else + { + precision = currentParam; + currentParam = precision + 1; + } + } + else + { + if (! positional) + currentParam = precision + 1; + if (width > maxParam) + maxParam = precision; + } + if (currentParam > maxParam) + maxParam = currentParam; + } + else + { + precision = trio_to_long(&format[index], + &tmpformat, + BASE_DECIMAL); + index = (int)(tmpformat - format); + } + } + else if (dots == 1) /* Base */ + { + dots++; + + /* After the second dot we have the base */ + flags |= FLAGS_BASE; + if ((QUALIFIER_STAR == format[index]) +#if defined(QUALIFIER_PARAM) + || (QUALIFIER_PARAM == format[index]) +#endif + ) + { + index++; + flags |= FLAGS_BASE_PARAMETER; + base = TrioGetPosition(format, &index); + if (base == NO_POSITION) + { + parameterPosition++; + if (positional) + base = parameterPosition; + else + { + base = currentParam; + currentParam = base + 1; + } + } + else + { + if (! positional) + currentParam = base + 1; + if (base > maxParam) + maxParam = base; + } + if (currentParam > maxParam) + maxParam = currentParam; + } + else + { + base = trio_to_long(&format[index], + &tmpformat, + BASE_DECIMAL); + if (base > MAX_BASE) + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + index = (int)(tmpformat - format); + } + } + else + { + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + } + break; /* QUALIFIER_DOT */ + +#if defined(QUALIFIER_PARAM) + case QUALIFIER_PARAM: + type = TYPE_PRINT; + /* FALLTHROUGH */ +#endif + case QUALIFIER_STAR: + /* This has different meanings for print and scan */ + if (TYPE_PRINT == type) + { + /* Read with from parameter */ + flags |= (FLAGS_WIDTH | FLAGS_WIDTH_PARAMETER); + width = TrioGetPosition(format, &index); + if (width == NO_POSITION) + { + parameterPosition++; + if (positional) + width = parameterPosition; + else + { + width = currentParam; + currentParam = width + 1; + } + } + else + { + if (! positional) + currentParam = width + 1; + if (width > maxParam) + maxParam = width; + } + if (currentParam > maxParam) + maxParam = currentParam; + } + else + { + /* Scan, but do not store result */ + flags |= FLAGS_IGNORE; + } + + break; /* QUALIFIER_STAR */ + + case '0': + if (! (flags & FLAGS_LEFTADJUST)) + flags |= FLAGS_NILPADDING; + /* FALLTHROUGH */ + case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + flags |= FLAGS_WIDTH; + /* &format[index - 1] is used to "rewind" the read + * character from format + */ + width = trio_to_long(&format[index - 1], + &tmpformat, + BASE_DECIMAL); + index = (int)(tmpformat - format); + break; + + case QUALIFIER_SHORT: + if (flags & FLAGS_SHORTSHORT) + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + else if (flags & FLAGS_SHORT) + flags |= FLAGS_SHORTSHORT; + else + flags |= FLAGS_SHORT; + break; + + case QUALIFIER_LONG: + if (flags & FLAGS_QUAD) + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + else if (flags & FLAGS_LONG) + flags |= FLAGS_QUAD; + else + flags |= FLAGS_LONG; + break; + + case QUALIFIER_LONG_UPPER: + flags |= FLAGS_LONGDOUBLE; + break; + +#if defined(QUALIFIER_SIZE_T) + case QUALIFIER_SIZE_T: + flags |= FLAGS_SIZE_T; + /* Modify flags for later truncation of number */ + if (sizeof(size_t) == sizeof(trio_ulonglong_t)) + flags |= FLAGS_QUAD; + else if (sizeof(size_t) == sizeof(long)) + flags |= FLAGS_LONG; + break; +#endif + +#if defined(QUALIFIER_PTRDIFF_T) + case QUALIFIER_PTRDIFF_T: + flags |= FLAGS_PTRDIFF_T; + if (sizeof(ptrdiff_t) == sizeof(trio_ulonglong_t)) + flags |= FLAGS_QUAD; + else if (sizeof(ptrdiff_t) == sizeof(long)) + flags |= FLAGS_LONG; + break; +#endif + +#if defined(QUALIFIER_INTMAX_T) + case QUALIFIER_INTMAX_T: + flags |= FLAGS_INTMAX_T; + if (sizeof(trio_intmax_t) == sizeof(trio_ulonglong_t)) + flags |= FLAGS_QUAD; + else if (sizeof(trio_intmax_t) == sizeof(long)) + flags |= FLAGS_LONG; + break; +#endif + +#if defined(QUALIFIER_QUAD) + case QUALIFIER_QUAD: + flags |= FLAGS_QUAD; + break; +#endif + +#if defined(QUALIFIER_FIXED_SIZE) + case QUALIFIER_FIXED_SIZE: + if (flags & FLAGS_FIXED_SIZE) + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + + if (flags & (FLAGS_ALL_SIZES | FLAGS_LONGDOUBLE | + FLAGS_WIDECHAR | FLAGS_VARSIZE_PARAMETER)) + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + + if ((format[index] == '6') && + (format[index + 1] == '4')) + { + varsize = sizeof(trio_int64_t); + index += 2; + } + else if ((format[index] == '3') && + (format[index + 1] == '2')) + { + varsize = sizeof(trio_int32_t); + index += 2; + } + else if ((format[index] == '1') && + (format[index + 1] == '6')) + { + varsize = sizeof(trio_int16_t); + index += 2; + } + else if (format[index] == '8') + { + varsize = sizeof(trio_int8_t); + index++; + } + else + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + + flags |= FLAGS_FIXED_SIZE; + break; +#endif + +#if defined(QUALIFIER_WIDECHAR) + case QUALIFIER_WIDECHAR: + flags |= FLAGS_WIDECHAR; + break; +#endif + +#if defined(QUALIFIER_SIZE_T_UPPER) + case QUALIFIER_SIZE_T_UPPER: + break; +#endif + +#if defined(QUALIFIER_QUOTE) + case QUALIFIER_QUOTE: + flags |= FLAGS_QUOTE; + break; +#endif + +#if defined(QUALIFIER_STICKY) + case QUALIFIER_STICKY: + flags |= FLAGS_STICKY; + gotSticky = TRUE; + break; +#endif + +#if defined(QUALIFIER_VARSIZE) + case QUALIFIER_VARSIZE: + flags |= FLAGS_VARSIZE_PARAMETER; + parameterPosition++; + if (positional) + varsize = parameterPosition; + else + { + varsize = currentParam; + currentParam = varsize + 1; + } + if (currentParam > maxParam) + maxParam = currentParam; + break; +#endif + +#if defined(QUALIFIER_ROUNDING_UPPER) + case QUALIFIER_ROUNDING_UPPER: + flags |= FLAGS_ROUNDING; + break; +#endif + + default: + /* Bail out completely to make the error more obvious */ + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + } + } /* while qualifier */ + + /* + * Parameters only need the type and value. The value is + * read later. + */ + if (flags & FLAGS_WIDTH_PARAMETER) + { + usedEntries[width] += 1; + parameters[pos].type = FORMAT_PARAMETER; + parameters[pos].flags = 0; + indices[width] = pos; + width = pos++; + } + if (flags & FLAGS_PRECISION_PARAMETER) + { + usedEntries[precision] += 1; + parameters[pos].type = FORMAT_PARAMETER; + parameters[pos].flags = 0; + indices[precision] = pos; + precision = pos++; + } + if (flags & FLAGS_BASE_PARAMETER) + { + usedEntries[base] += 1; + parameters[pos].type = FORMAT_PARAMETER; + parameters[pos].flags = 0; + indices[base] = pos; + base = pos++; + } + if (flags & FLAGS_VARSIZE_PARAMETER) + { + usedEntries[varsize] += 1; + parameters[pos].type = FORMAT_PARAMETER; + parameters[pos].flags = 0; + indices[varsize] = pos; + varsize = pos++; + } + + indices[currentParam] = pos; + + switch (format[index++]) + { +#if defined(SPECIFIER_CHAR_UPPER) + case SPECIFIER_CHAR_UPPER: + flags |= FLAGS_WIDECHAR; + /* FALLTHROUGH */ +#endif + case SPECIFIER_CHAR: + if (flags & FLAGS_LONG) + flags |= FLAGS_WIDECHAR; + else if (flags & FLAGS_SHORT) + flags &= ~FLAGS_WIDECHAR; + parameters[pos].type = FORMAT_CHAR; + break; + +#if defined(SPECIFIER_STRING_UPPER) + case SPECIFIER_STRING_UPPER: + flags |= FLAGS_WIDECHAR; + /* FALLTHROUGH */ +#endif + case SPECIFIER_STRING: + if (flags & FLAGS_LONG) + flags |= FLAGS_WIDECHAR; + else if (flags & FLAGS_SHORT) + flags &= ~FLAGS_WIDECHAR; + parameters[pos].type = FORMAT_STRING; + break; + + case SPECIFIER_GROUP: + if (TYPE_SCAN == type) + { + int depth = 1; + parameters[pos].type = FORMAT_GROUP; + if (format[index] == QUALIFIER_CIRCUMFLEX) + index++; + if (format[index] == SPECIFIER_UNGROUP) + index++; + if (format[index] == QUALIFIER_MINUS) + index++; + /* Skip nested brackets */ + while (format[index] != NIL) + { + if (format[index] == SPECIFIER_GROUP) + { + depth++; + } + else if (format[index] == SPECIFIER_UNGROUP) + { + if (--depth <= 0) + { + index++; + break; + } + } + index++; + } + } + break; + + case SPECIFIER_INTEGER: + parameters[pos].type = FORMAT_INT; + break; + + case SPECIFIER_UNSIGNED: + flags |= FLAGS_UNSIGNED; + parameters[pos].type = FORMAT_INT; + break; + + case SPECIFIER_DECIMAL: + /* Disable base modifier */ + flags &= ~FLAGS_BASE_PARAMETER; + base = BASE_DECIMAL; + parameters[pos].type = FORMAT_INT; + break; + + case SPECIFIER_OCTAL: + flags &= ~FLAGS_BASE_PARAMETER; + base = BASE_OCTAL; + parameters[pos].type = FORMAT_INT; + break; + +#if defined(SPECIFIER_BINARY) + case SPECIFIER_BINARY_UPPER: + flags |= FLAGS_UPPER; + /* FALLTHROUGH */ + case SPECIFIER_BINARY: + flags |= FLAGS_NILPADDING; + flags &= ~FLAGS_BASE_PARAMETER; + base = BASE_BINARY; + parameters[pos].type = FORMAT_INT; + break; +#endif + + case SPECIFIER_HEX_UPPER: + flags |= FLAGS_UPPER; + /* FALLTHROUGH */ + case SPECIFIER_HEX: + flags |= FLAGS_UNSIGNED; + flags &= ~FLAGS_BASE_PARAMETER; + base = BASE_HEX; + parameters[pos].type = FORMAT_INT; + break; + + case SPECIFIER_FLOAT_E_UPPER: + flags |= FLAGS_UPPER; + /* FALLTHROUGH */ + case SPECIFIER_FLOAT_E: + flags |= FLAGS_FLOAT_E; + parameters[pos].type = FORMAT_DOUBLE; + break; + + case SPECIFIER_FLOAT_G_UPPER: + flags |= FLAGS_UPPER; + /* FALLTHROUGH */ + case SPECIFIER_FLOAT_G: + flags |= FLAGS_FLOAT_G; + parameters[pos].type = FORMAT_DOUBLE; + break; + + case SPECIFIER_FLOAT_F_UPPER: + flags |= FLAGS_UPPER; + /* FALLTHROUGH */ + case SPECIFIER_FLOAT_F: + parameters[pos].type = FORMAT_DOUBLE; + break; + + case SPECIFIER_POINTER: + if (sizeof(trio_pointer_t) == sizeof(trio_ulonglong_t)) + flags |= FLAGS_QUAD; + else if (sizeof(trio_pointer_t) == sizeof(long)) + flags |= FLAGS_LONG; + parameters[pos].type = FORMAT_POINTER; + break; + + case SPECIFIER_COUNT: + parameters[pos].type = FORMAT_COUNT; + break; + +#if defined(SPECIFIER_HEXFLOAT) +# if defined(SPECIFIER_HEXFLOAT_UPPER) + case SPECIFIER_HEXFLOAT_UPPER: + flags |= FLAGS_UPPER; + /* FALLTHROUGH */ +# endif + case SPECIFIER_HEXFLOAT: + base = BASE_HEX; + parameters[pos].type = FORMAT_DOUBLE; + break; +#endif + +#if defined(FORMAT_ERRNO) + case SPECIFIER_ERRNO: + parameters[pos].type = FORMAT_ERRNO; + break; +#endif + +#if defined(SPECIFIER_USER_DEFINED_BEGIN) + case SPECIFIER_USER_DEFINED_BEGIN: + { + unsigned int max; + int without_namespace = TRUE; + + parameters[pos].type = FORMAT_USER_DEFINED; + parameters[pos].user_name[0] = NIL; + tmpformat = (char *)&format[index]; + + while ((ch = format[index])) + { + index++; + if (ch == SPECIFIER_USER_DEFINED_END) + { + if (without_namespace) + { + /* We must get the handle first */ + parameters[pos].type = FORMAT_PARAMETER; + parameters[pos].indexAfterSpecifier = index; + parameters[pos].flags = FLAGS_USER_DEFINED; + /* Adjust parameters for insertion of new one */ + pos++; + usedEntries[currentParam] += 1; + parameters[pos].type = FORMAT_USER_DEFINED; + currentParam++; + indices[currentParam] = pos; + if (currentParam > maxParam) + maxParam = currentParam; + } + /* Copy the user data */ + max = (unsigned int)(&format[index] - tmpformat); + if (max > MAX_USER_DATA) + max = MAX_USER_DATA; + trio_copy_max(parameters[pos].user_data, + max, + tmpformat); + break; /* while */ + } + if (ch == SPECIFIER_USER_DEFINED_SEPARATOR) + { + without_namespace = FALSE; + /* Copy the namespace for later looking-up */ + max = (int)(&format[index] - tmpformat); + if (max > MAX_USER_NAME) + max = MAX_USER_NAME; + trio_copy_max(parameters[pos].user_name, + max, + tmpformat); + tmpformat = (char *)&format[index]; + } + } + if (ch != SPECIFIER_USER_DEFINED_END) + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + } + break; +#endif /* defined(SPECIFIER_USER_DEFINED_BEGIN) */ + + default: + /* Bail out completely to make the error more obvious */ + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + } + + /* Count the number of times this entry has been used */ + usedEntries[currentParam] += 1; + + /* Find last sticky parameters */ + if (gotSticky && !(flags & FLAGS_STICKY)) + { + for (i = pos - 1; i >= 0; i--) + { + if (parameters[i].type == FORMAT_PARAMETER) + continue; + if ((parameters[i].flags & FLAGS_STICKY) && + (parameters[i].type == parameters[pos].type)) + { + /* Do not overwrite current qualifiers */ + flags |= (parameters[i].flags & (unsigned long)~FLAGS_STICKY); + if (width == NO_WIDTH) + width = parameters[i].width; + if (precision == NO_PRECISION) + precision = parameters[i].precision; + if (base == NO_BASE) + base = parameters[i].base; + break; + } + } + } + + parameters[pos].indexAfterSpecifier = index; + parameters[pos].flags = flags; + parameters[pos].width = width; + parameters[pos].precision = precision; + parameters[pos].base = (base == NO_BASE) ? BASE_DECIMAL : base; + parameters[pos].varsize = varsize; + pos++; + + if (! positional) + parameterPosition++; + + } /* if identifier */ + + } /* while format characters left */ + + for (num = 0; num <= maxParam; num++) + { + if (usedEntries[num] != 1) + { + if (usedEntries[num] == 0) /* gap detected */ + return TRIO_ERROR_RETURN(TRIO_EGAP, num); + else /* double references detected */ + return TRIO_ERROR_RETURN(TRIO_EDBLREF, num); + } + + i = indices[num]; + + /* + * FORMAT_PARAMETERS are only present if they must be read, + * so it makes no sense to check the ignore flag (besides, + * the flags variable is not set for that particular type) + */ + if ((parameters[i].type != FORMAT_PARAMETER) && + (parameters[i].flags & FLAGS_IGNORE)) + continue; /* for all arguments */ + + /* + * The stack arguments are read according to ANSI C89 + * default argument promotions: + * + * char = int + * short = int + * unsigned char = unsigned int + * unsigned short = unsigned int + * float = double + * + * In addition to the ANSI C89 these types are read (the + * default argument promotions of C99 has not been + * considered yet) + * + * long long + * long double + * size_t + * ptrdiff_t + * intmax_t + */ + switch (parameters[i].type) + { + case FORMAT_GROUP: + case FORMAT_STRING: +#if TRIO_WIDECHAR + if (flags & FLAGS_WIDECHAR) + { + parameters[i].data.wstring = (argarray == NULL) + ? va_arg(*arglist, trio_wchar_t *) + : (trio_wchar_t *)(argarray[num]); + } + else +#endif + { + parameters[i].data.string = (argarray == NULL) + ? va_arg(*arglist, char *) + : (char *)(argarray[num]); + } + break; + +#if defined(FORMAT_USER_DEFINED) + case FORMAT_USER_DEFINED: +#endif + case FORMAT_POINTER: + case FORMAT_COUNT: + case FORMAT_UNKNOWN: + parameters[i].data.pointer = (argarray == NULL) + ? va_arg(*arglist, trio_pointer_t ) + : argarray[num]; + break; + + case FORMAT_CHAR: + case FORMAT_INT: + if (TYPE_SCAN == type) + { + if (argarray == NULL) + parameters[i].data.pointer = + (trio_pointer_t)va_arg(*arglist, trio_pointer_t); + else + { + if (parameters[i].type == FORMAT_CHAR) + parameters[i].data.pointer = + (trio_pointer_t)((char *)argarray[num]); + else if (parameters[i].flags & FLAGS_SHORT) + parameters[i].data.pointer = + (trio_pointer_t)((short *)argarray[num]); + else + parameters[i].data.pointer = + (trio_pointer_t)((int *)argarray[num]); + } + } + else + { +#if defined(QUALIFIER_VARSIZE) || defined(QUALIFIER_FIXED_SIZE) + if (parameters[i].flags + & (FLAGS_VARSIZE_PARAMETER | FLAGS_FIXED_SIZE)) + { + if (parameters[i].flags & FLAGS_VARSIZE_PARAMETER) + { + /* + * Variable sizes are mapped onto the fixed sizes, in + * accordance with integer promotion. + * + * Please note that this may not be portable, as we + * only guess the size, not the layout of the numbers. + * For example, if int is little-endian, and long is + * big-endian, then this will fail. + */ + varsize = (int)parameters[parameters[i].varsize].data.number.as_unsigned; + } + else + { + /* Used for the I<bits> modifiers */ + varsize = parameters[i].varsize; + } + parameters[i].flags &= ~FLAGS_ALL_VARSIZES; + + if (varsize <= (int)sizeof(int)) + ; + else if (varsize <= (int)sizeof(long)) + parameters[i].flags |= FLAGS_LONG; +#if defined(QUALIFIER_INTMAX_T) + else if (varsize <= (int)sizeof(trio_longlong_t)) + parameters[i].flags |= FLAGS_QUAD; + else + parameters[i].flags |= FLAGS_INTMAX_T; +#else + else + parameters[i].flags |= FLAGS_QUAD; +#endif + } +#endif /* defined(QUALIFIER_VARSIZE) */ +#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER) + if (parameters[i].flags & FLAGS_SIZE_T) + parameters[i].data.number.as_unsigned = (argarray == NULL) + ? (trio_uintmax_t)va_arg(*arglist, size_t) + : (trio_uintmax_t)(*((size_t *)argarray[num])); + else +#endif +#if defined(QUALIFIER_PTRDIFF_T) + if (parameters[i].flags & FLAGS_PTRDIFF_T) + parameters[i].data.number.as_unsigned = (argarray == NULL) + ? (trio_uintmax_t)va_arg(*arglist, ptrdiff_t) + : (trio_uintmax_t)(*((ptrdiff_t *)argarray[num])); + else +#endif +#if defined(QUALIFIER_INTMAX_T) + if (parameters[i].flags & FLAGS_INTMAX_T) + parameters[i].data.number.as_unsigned = (argarray == NULL) + ? (trio_uintmax_t)va_arg(*arglist, trio_intmax_t) + : (trio_uintmax_t)(*((trio_intmax_t *)argarray[num])); + else +#endif + if (parameters[i].flags & FLAGS_QUAD) + parameters[i].data.number.as_unsigned = (argarray == NULL) + ? (trio_uintmax_t)va_arg(*arglist, trio_ulonglong_t) + : (trio_uintmax_t)(*((trio_ulonglong_t *)argarray[num])); + else if (parameters[i].flags & FLAGS_LONG) + parameters[i].data.number.as_unsigned = (argarray == NULL) + ? (trio_uintmax_t)va_arg(*arglist, long) + : (trio_uintmax_t)(*((long *)argarray[num])); + else + { + if (argarray == NULL) + parameters[i].data.number.as_unsigned = (trio_uintmax_t)va_arg(*arglist, int); + else + { + if (parameters[i].type == FORMAT_CHAR) + parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((char *)argarray[num])); + else if (parameters[i].flags & FLAGS_SHORT) + parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((short *)argarray[num])); + else + parameters[i].data.number.as_unsigned = (trio_uintmax_t)(*((int *)argarray[num])); + } + } + } + break; + + case FORMAT_PARAMETER: + /* + * The parameter for the user-defined specifier is a pointer, + * whereas the rest (width, precision, base) uses an integer. + */ + if (parameters[i].flags & FLAGS_USER_DEFINED) + parameters[i].data.pointer = (argarray == NULL) + ? va_arg(*arglist, trio_pointer_t ) + : argarray[num]; + else + parameters[i].data.number.as_unsigned = (argarray == NULL) + ? (trio_uintmax_t)va_arg(*arglist, int) + : (trio_uintmax_t)(*((int *)argarray[num])); + break; + + case FORMAT_DOUBLE: + if (TYPE_SCAN == type) + { + if (parameters[i].flags & FLAGS_LONGDOUBLE) + parameters[i].data.longdoublePointer = (argarray == NULL) + ? va_arg(*arglist, trio_long_double_t *) + : (trio_long_double_t *)argarray[num]; + else + { + if (parameters[i].flags & FLAGS_LONG) + parameters[i].data.doublePointer = (argarray == NULL) + ? va_arg(*arglist, double *) + : (double *)argarray[num]; + else + parameters[i].data.doublePointer = (argarray == NULL) + ? (double *)va_arg(*arglist, float *) + : (double *)((float *)argarray[num]); + } + } + else + { + if (parameters[i].flags & FLAGS_LONGDOUBLE) + parameters[i].data.longdoubleNumber = (argarray == NULL) + ? va_arg(*arglist, trio_long_double_t) + : (trio_long_double_t)(*((trio_long_double_t *)argarray[num])); + else + { + if (argarray == NULL) + parameters[i].data.longdoubleNumber = + (trio_long_double_t)va_arg(*arglist, double); + else + { + if (parameters[i].flags & FLAGS_SHORT) + parameters[i].data.longdoubleNumber = + (trio_long_double_t)(*((float *)argarray[num])); + else + parameters[i].data.longdoubleNumber = + (trio_long_double_t)(*((double *)argarray[num])); + } + } + } + break; + +#if defined(FORMAT_ERRNO) + case FORMAT_ERRNO: + parameters[i].data.errorNumber = save_errno; + break; +#endif + + default: + break; + } + } /* for all specifiers */ + return num; +} + + +/************************************************************************* + * + * FORMATTING + * + ************************************************************************/ + + +/************************************************************************* + * TrioWriteNumber + * + * Description: + * Output a number. + * The complexity of this function is a result of the complexity + * of the dependencies of the flags. + */ +TRIO_PRIVATE void +TrioWriteNumber +TRIO_ARGS6((self, number, flags, width, precision, base), + trio_class_t *self, + trio_uintmax_t number, + unsigned long flags, + int width, + int precision, + int base) +{ + BOOLEAN_T isNegative; + char buffer[MAX_CHARS_IN(trio_uintmax_t) * (1 + MAX_LOCALE_SEPARATOR_LENGTH) + 1]; + char *bufferend; + char *pointer; + TRIO_CONST char *digits; + int i; + int length; + char *p; + int count; + + assert(VALID(self)); + assert(VALID(self->OutStream)); + assert(((base >= MIN_BASE) && (base <= MAX_BASE)) || (base == NO_BASE)); + + digits = (flags & FLAGS_UPPER) ? internalDigitsUpper : internalDigitsLower; + if (base == NO_BASE) + base = BASE_DECIMAL; + + isNegative = (flags & FLAGS_UNSIGNED) + ? FALSE + : ((trio_intmax_t)number < 0); + if (isNegative) + number = -((trio_intmax_t)number); + + if (flags & FLAGS_QUAD) + number &= (trio_ulonglong_t)-1; + else if (flags & FLAGS_LONG) + number &= (unsigned long)-1; + else + number &= (unsigned int)-1; + + /* Build number */ + pointer = bufferend = &buffer[sizeof(buffer) - 1]; + *pointer-- = NIL; + for (i = 1; i < (int)sizeof(buffer); i++) + { + *pointer-- = digits[number % base]; + number /= base; + if (number == 0) + break; + + if ((flags & FLAGS_QUOTE) && TrioFollowedBySeparator(i + 1)) + { + /* + * We are building the number from the least significant + * to the most significant digit, so we have to copy the + * thousand separator backwards + */ + length = internalThousandSeparatorLength; + if (((int)(pointer - buffer) - length) > 0) + { + p = &internalThousandSeparator[length - 1]; + while (length-- > 0) + *pointer-- = *p--; + } + } + } + + /* Adjust width */ + width -= (bufferend - pointer) - 1; + + /* Adjust precision */ + if (NO_PRECISION != precision) + { + precision -= (bufferend - pointer) - 1; + if (precision < 0) + precision = 0; + flags |= FLAGS_NILPADDING; + } + + /* Adjust width further */ + if (isNegative || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE)) + width--; + if (flags & FLAGS_ALTERNATIVE) + { + switch (base) + { + case BASE_BINARY: + case BASE_HEX: + width -= 2; + break; + case BASE_OCTAL: + width--; + break; + default: + break; + } + } + + /* Output prefixes spaces if needed */ + if (! ((flags & FLAGS_LEFTADJUST) || + ((flags & FLAGS_NILPADDING) && (precision == NO_PRECISION)))) + { + count = (precision == NO_PRECISION) ? 0 : precision; + while (width-- > count) + self->OutStream(self, CHAR_ADJUST); + } + + /* width has been adjusted for signs and alternatives */ + if (isNegative) + self->OutStream(self, '-'); + else if (flags & FLAGS_SHOWSIGN) + self->OutStream(self, '+'); + else if (flags & FLAGS_SPACE) + self->OutStream(self, ' '); + + if (flags & FLAGS_ALTERNATIVE) + { + switch (base) + { + case BASE_BINARY: + self->OutStream(self, '0'); + self->OutStream(self, (flags & FLAGS_UPPER) ? 'B' : 'b'); + break; + + case BASE_OCTAL: + self->OutStream(self, '0'); + break; + + case BASE_HEX: + self->OutStream(self, '0'); + self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x'); + break; + + default: + break; + } /* switch base */ + } + + /* Output prefixed zero padding if needed */ + if (flags & FLAGS_NILPADDING) + { + if (precision == NO_PRECISION) + precision = width; + while (precision-- > 0) + { + self->OutStream(self, '0'); + width--; + } + } + + /* Output the number itself */ + while (*(++pointer)) + { + self->OutStream(self, *pointer); + } + + /* Output trailing spaces if needed */ + if (flags & FLAGS_LEFTADJUST) + { + while (width-- > 0) + self->OutStream(self, CHAR_ADJUST); + } +} + +/************************************************************************* + * TrioWriteStringCharacter + * + * Description: + * Output a single character of a string + */ +TRIO_PRIVATE void +TrioWriteStringCharacter +TRIO_ARGS3((self, ch, flags), + trio_class_t *self, + int ch, + unsigned long flags) +{ + if (flags & FLAGS_ALTERNATIVE) + { + if (! isprint(ch)) + { + /* + * Non-printable characters are converted to C escapes or + * \number, if no C escape exists. + */ + self->OutStream(self, CHAR_BACKSLASH); + switch (ch) + { + case '\007': self->OutStream(self, 'a'); break; + case '\b': self->OutStream(self, 'b'); break; + case '\f': self->OutStream(self, 'f'); break; + case '\n': self->OutStream(self, 'n'); break; + case '\r': self->OutStream(self, 'r'); break; + case '\t': self->OutStream(self, 't'); break; + case '\v': self->OutStream(self, 'v'); break; + case '\\': self->OutStream(self, '\\'); break; + default: + self->OutStream(self, 'x'); + TrioWriteNumber(self, (trio_uintmax_t)ch, + FLAGS_UNSIGNED | FLAGS_NILPADDING, + 2, 2, BASE_HEX); + break; + } + } + else if (ch == CHAR_BACKSLASH) + { + self->OutStream(self, CHAR_BACKSLASH); + self->OutStream(self, CHAR_BACKSLASH); + } + else + { + self->OutStream(self, ch); + } + } + else + { + self->OutStream(self, ch); + } +} + +/************************************************************************* + * TrioWriteString + * + * Description: + * Output a string + */ +TRIO_PRIVATE void +TrioWriteString +TRIO_ARGS5((self, string, flags, width, precision), + trio_class_t *self, + TRIO_CONST char *string, + unsigned long flags, + int width, + int precision) +{ + int length; + int ch; + + assert(VALID(self)); + assert(VALID(self->OutStream)); + + if (string == NULL) + { + string = internalNullString; + length = sizeof(internalNullString) - 1; + /* Disable quoting for the null pointer */ + flags &= (~FLAGS_QUOTE); + width = 0; + } + else + { + length = trio_length(string); + } + if ((NO_PRECISION != precision) && + (precision < length)) + { + length = precision; + } + width -= length; + + if (flags & FLAGS_QUOTE) + self->OutStream(self, CHAR_QUOTE); + + if (! (flags & FLAGS_LEFTADJUST)) + { + while (width-- > 0) + self->OutStream(self, CHAR_ADJUST); + } + + while (length-- > 0) + { + /* The ctype parameters must be an unsigned char (or EOF) */ + ch = (int)((unsigned char)(*string++)); + TrioWriteStringCharacter(self, ch, flags); + } + + if (flags & FLAGS_LEFTADJUST) + { + while (width-- > 0) + self->OutStream(self, CHAR_ADJUST); + } + if (flags & FLAGS_QUOTE) + self->OutStream(self, CHAR_QUOTE); +} + +/************************************************************************* + * TrioWriteWideStringCharacter + * + * Description: + * Output a wide string as a multi-byte sequence + */ +#if TRIO_WIDECHAR +TRIO_PRIVATE int +TrioWriteWideStringCharacter +TRIO_ARGS4((self, wch, flags, width), + trio_class_t *self, + trio_wchar_t wch, + unsigned long flags, + int width) +{ + int size; + int i; + int ch; + char *string; + char buffer[MB_LEN_MAX + 1]; + + if (width == NO_WIDTH) + width = sizeof(buffer); + + size = wctomb(buffer, wch); + if ((size <= 0) || (size > width) || (buffer[0] == NIL)) + return 0; + + string = buffer; + i = size; + while ((width >= i) && (width-- > 0) && (i-- > 0)) + { + /* The ctype parameters must be an unsigned char (or EOF) */ + ch = (int)((unsigned char)(*string++)); + TrioWriteStringCharacter(self, ch, flags); + } + return size; +} +#endif /* TRIO_WIDECHAR */ + +/************************************************************************* + * TrioWriteWideString + * + * Description: + * Output a wide character string as a multi-byte string + */ +#if TRIO_WIDECHAR +TRIO_PRIVATE void +TrioWriteWideString +TRIO_ARGS5((self, wstring, flags, width, precision), + trio_class_t *self, + TRIO_CONST trio_wchar_t *wstring, + unsigned long flags, + int width, + int precision) +{ + int length; + int size; + + assert(VALID(self)); + assert(VALID(self->OutStream)); + +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + (void)mblen(NULL, 0); +#endif + + if (wstring == NULL) + { + TrioWriteString(self, NULL, flags, width, precision); + return; + } + + if (NO_PRECISION == precision) + { + length = INT_MAX; + } + else + { + length = precision; + width -= length; + } + + if (flags & FLAGS_QUOTE) + self->OutStream(self, CHAR_QUOTE); + + if (! (flags & FLAGS_LEFTADJUST)) + { + while (width-- > 0) + self->OutStream(self, CHAR_ADJUST); + } + + while (length > 0) + { + size = TrioWriteWideStringCharacter(self, *wstring++, flags, length); + if (size == 0) + break; /* while */ + length -= size; + } + + if (flags & FLAGS_LEFTADJUST) + { + while (width-- > 0) + self->OutStream(self, CHAR_ADJUST); + } + if (flags & FLAGS_QUOTE) + self->OutStream(self, CHAR_QUOTE); +} +#endif /* TRIO_WIDECHAR */ + +/************************************************************************* + * TrioWriteDouble + * + * http://wwwold.dkuug.dk/JTC1/SC22/WG14/www/docs/dr_211.htm + * + * "5.2.4.2.2 paragraph #4 + * + * The accuracy [...] is implementation defined, as is the accuracy + * of the conversion between floating-point internal representations + * and string representations performed by the libray routine in + * <stdio.h>" + */ +/* FIXME: handle all instances of constant long-double number (L) + * and *l() math functions. + */ +TRIO_PRIVATE void +TrioWriteDouble +TRIO_ARGS6((self, number, flags, width, precision, base), + trio_class_t *self, + trio_long_double_t number, + unsigned long flags, + int width, + int precision, + int base) +{ + trio_long_double_t integerNumber; + trio_long_double_t fractionNumber; + trio_long_double_t workNumber; + int integerDigits; + int fractionDigits; + int exponentDigits; + int baseDigits; + int integerThreshold; + int fractionThreshold; + int expectedWidth; + int exponent = 0; + unsigned int uExponent = 0; + int exponentBase; + trio_long_double_t dblBase; + trio_long_double_t dblIntegerBase; + trio_long_double_t dblFractionBase; + trio_long_double_t integerAdjust; + trio_long_double_t fractionAdjust; + BOOLEAN_T isNegative; + BOOLEAN_T isExponentNegative = FALSE; + BOOLEAN_T requireTwoDigitExponent; + BOOLEAN_T isHex; + TRIO_CONST char *digits; + char *groupingPointer; + int i; + int index; + BOOLEAN_T hasOnlyZeroes; + int zeroes = 0; + register int trailingZeroes; + BOOLEAN_T keepTrailingZeroes; + BOOLEAN_T keepDecimalPoint; + trio_long_double_t epsilon; + + assert(VALID(self)); + assert(VALID(self->OutStream)); + assert(((base >= MIN_BASE) && (base <= MAX_BASE)) || (base == NO_BASE)); + + /* Determine sign and look for special quantities */ + switch (trio_fpclassify_and_signbit(number, &isNegative)) + { + case TRIO_FP_NAN: + TrioWriteString(self, + (flags & FLAGS_UPPER) + ? NAN_UPPER + : NAN_LOWER, + flags, width, precision); + return; + + case TRIO_FP_INFINITE: + if (isNegative) + { + /* Negative infinity */ + TrioWriteString(self, + (flags & FLAGS_UPPER) + ? "-" INFINITE_UPPER + : "-" INFINITE_LOWER, + flags, width, precision); + return; + } + else + { + /* Positive infinity */ + TrioWriteString(self, + (flags & FLAGS_UPPER) + ? INFINITE_UPPER + : INFINITE_LOWER, + flags, width, precision); + return; + } + + default: + /* Finitude */ + break; + } + + /* Normal numbers */ + if (flags & FLAGS_LONGDOUBLE) + { + baseDigits = (base == 10) + ? LDBL_DIG + : (int)floor(LDBL_MANT_DIG / TrioLogarithmBase(base)); + epsilon = LDBL_EPSILON; + } + else if (flags & FLAGS_SHORT) + { + baseDigits = (base == BASE_DECIMAL) + ? FLT_DIG + : (int)floor(FLT_MANT_DIG / TrioLogarithmBase(base)); + epsilon = FLT_EPSILON; + } + else + { + baseDigits = (base == BASE_DECIMAL) + ? DBL_DIG + : (int)floor(DBL_MANT_DIG / TrioLogarithmBase(base)); + epsilon = DBL_EPSILON; + } + + digits = (flags & FLAGS_UPPER) ? internalDigitsUpper : internalDigitsLower; + isHex = (base == BASE_HEX); + if (base == NO_BASE) + base = BASE_DECIMAL; + dblBase = (trio_long_double_t)base; + keepTrailingZeroes = !( (flags & FLAGS_ROUNDING) || + ( (flags & FLAGS_FLOAT_G) && + !(flags & FLAGS_ALTERNATIVE) ) ); + + if (flags & FLAGS_ROUNDING) + precision = baseDigits; + + if (precision == NO_PRECISION) + precision = FLT_DIG; + + if (isNegative) + number = -number; + + if (isHex) + flags |= FLAGS_FLOAT_E; + + if (flags & FLAGS_FLOAT_G) + { + if (precision == 0) + precision = 1; + + if ((number < 1.0E-4) || (number > powl(base, + (trio_long_double_t)precision))) + { + /* Use scientific notation */ + flags |= FLAGS_FLOAT_E; + } + else if (number < 1.0) + { + /* + * Use normal notation. If the integer part of the number is + * zero, then adjust the precision to include leading fractional + * zeros. + */ + workNumber = TrioLogarithm(number, base); + workNumber = TRIO_FABS(workNumber); + if (workNumber - floorl(workNumber) < 0.001) + workNumber--; + zeroes = (int)floorl(workNumber); + } + } + + if (flags & FLAGS_FLOAT_E) + { + /* Scale the number */ + workNumber = TrioLogarithm(number, base); + if (trio_isinf(workNumber) == -1) + { + exponent = 0; + /* Undo setting */ + if (flags & FLAGS_FLOAT_G) + flags &= ~FLAGS_FLOAT_E; + } + else + { + exponent = (int)floorl(workNumber); + number /= powl(dblBase, (trio_long_double_t)exponent); + isExponentNegative = (exponent < 0); + uExponent = (isExponentNegative) ? -exponent : exponent; + /* No thousand separators */ + flags &= ~FLAGS_QUOTE; + } + } + + integerNumber = floorl(number); + fractionNumber = number - integerNumber; + + /* + * Truncated number. + * + * Precision is number of significant digits for FLOAT_G + * and number of fractional digits for others. + */ + integerDigits = (integerNumber > epsilon) + ? 1 + (int)TrioLogarithm(integerNumber, base) + : 1; + fractionDigits = ((flags & FLAGS_FLOAT_G) && (zeroes == 0)) + ? precision - integerDigits + : zeroes + precision; + + dblFractionBase = TrioPower(base, fractionDigits); + + workNumber = number + 0.5 / dblFractionBase; + if (floorl(number) != floorl(workNumber)) + { + if (flags & FLAGS_FLOAT_E) + { + /* Adjust if number was rounded up one digit (ie. 0.99 to 1.00) */ + exponent++; + isExponentNegative = (exponent < 0); + uExponent = (isExponentNegative) ? -exponent : exponent; + workNumber = (number + 0.5 / dblFractionBase) / dblBase; + integerNumber = floorl(workNumber); + fractionNumber = workNumber - integerNumber; + } + else + { + /* Adjust if number was rounded up one digit (ie. 99 to 100) */ + integerNumber = floorl(number + 0.5); + fractionNumber = 0.0; + integerDigits = (integerNumber > epsilon) + ? 1 + (int)TrioLogarithm(integerNumber, base) + : 1; + } + } + + /* Estimate accuracy */ + integerAdjust = fractionAdjust = 0.5; + if (flags & FLAGS_ROUNDING) + { + if (integerDigits > baseDigits) + { + integerThreshold = baseDigits; + fractionDigits = 0; + dblFractionBase = 1.0; + fractionThreshold = 0; + precision = 0; /* Disable decimal-point */ + integerAdjust = TrioPower(base, integerDigits - integerThreshold - 1); + fractionAdjust = 0.0; + } + else + { + integerThreshold = integerDigits; + fractionThreshold = fractionDigits - integerThreshold; + fractionAdjust = 1.0; + } + } + else + { + integerThreshold = INT_MAX; + fractionThreshold = INT_MAX; + } + + /* + * Calculate expected width. + * sign + integer part + thousands separators + decimal point + * + fraction + exponent + */ + fractionAdjust /= dblFractionBase; + hasOnlyZeroes = (floorl((fractionNumber + fractionAdjust) * dblFractionBase) < epsilon); + keepDecimalPoint = ( (flags & FLAGS_ALTERNATIVE) || + !((precision == 0) || + (!keepTrailingZeroes && hasOnlyZeroes)) ); + if (flags & FLAGS_FLOAT_E) + { + exponentDigits = (uExponent == 0) + ? 1 + : (int)ceil(TrioLogarithm((double)(uExponent + 1), base)); + } + else + exponentDigits = 0; + requireTwoDigitExponent = ((base == BASE_DECIMAL) && (exponentDigits == 1)); + + expectedWidth = integerDigits + fractionDigits + + (keepDecimalPoint + ? internalDecimalPointLength + : 0) + + ((flags & FLAGS_QUOTE) + ? TrioCalcThousandSeparatorLength(integerDigits) + : 0); + if (isNegative || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE)) + expectedWidth += sizeof("-") - 1; + if (exponentDigits > 0) + expectedWidth += exponentDigits + + ((requireTwoDigitExponent ? sizeof("E+0") : sizeof("E+")) - 1); + if (isHex) + expectedWidth += sizeof("0X") - 1; + + /* Output prefixing */ + if (flags & FLAGS_NILPADDING) + { + /* Leading zeros must be after sign */ + if (isNegative) + self->OutStream(self, '-'); + else if (flags & FLAGS_SHOWSIGN) + self->OutStream(self, '+'); + else if (flags & FLAGS_SPACE) + self->OutStream(self, ' '); + if (isHex) + { + self->OutStream(self, '0'); + self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x'); + } + if (!(flags & FLAGS_LEFTADJUST)) + { + for (i = expectedWidth; i < width; i++) + { + self->OutStream(self, '0'); + } + } + } + else + { + /* Leading spaces must be before sign */ + if (!(flags & FLAGS_LEFTADJUST)) + { + for (i = expectedWidth; i < width; i++) + { + self->OutStream(self, CHAR_ADJUST); + } + } + if (isNegative) + self->OutStream(self, '-'); + else if (flags & FLAGS_SHOWSIGN) + self->OutStream(self, '+'); + else if (flags & FLAGS_SPACE) + self->OutStream(self, ' '); + if (isHex) + { + self->OutStream(self, '0'); + self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x'); + } + } + + /* Output the integer part and thousand separators */ + dblIntegerBase = 1.0 / TrioPower(base, integerDigits - 1); + for (i = 0; i < integerDigits; i++) + { + workNumber = floorl(((integerNumber + integerAdjust) * dblIntegerBase)); + if (i > integerThreshold) + { + /* Beyond accuracy */ + self->OutStream(self, digits[0]); + } + else + { + self->OutStream(self, digits[(int)fmodl(workNumber, dblBase)]); + } + dblIntegerBase *= dblBase; + + if (((flags & (FLAGS_FLOAT_E | FLAGS_QUOTE)) == FLAGS_QUOTE) + && TrioFollowedBySeparator(integerDigits - i)) + { + for (groupingPointer = internalThousandSeparator; + *groupingPointer != NIL; + groupingPointer++) + { + self->OutStream(self, *groupingPointer); + } + } + } + + /* Insert decimal point and build the fraction part */ + trailingZeroes = 0; + + if (keepDecimalPoint) + { + if (internalDecimalPoint) + { + self->OutStream(self, internalDecimalPoint); + } + else + { + for (i = 0; i < internalDecimalPointLength; i++) + { + self->OutStream(self, internalDecimalPointString[i]); + } + } + } + + for (i = 0; i < fractionDigits; i++) + { + if ((integerDigits > integerThreshold) || (i > fractionThreshold)) + { + /* Beyond accuracy */ + trailingZeroes++; + } + else + { + fractionNumber *= dblBase; + fractionAdjust *= dblBase; + workNumber = floorl(fractionNumber + fractionAdjust); + fractionNumber -= workNumber; + index = (int)fmodl(workNumber, dblBase); + if (index == 0) + { + trailingZeroes++; + } + else + { + while (trailingZeroes > 0) + { + /* Not trailing zeroes after all */ + self->OutStream(self, digits[0]); + trailingZeroes--; + } + self->OutStream(self, digits[index]); + } + } + } + + if (keepTrailingZeroes) + { + while (trailingZeroes > 0) + { + self->OutStream(self, digits[0]); + trailingZeroes--; + } + } + + /* Output exponent */ + if (exponentDigits > 0) + { + self->OutStream(self, + isHex + ? ((flags & FLAGS_UPPER) ? 'P' : 'p') + : ((flags & FLAGS_UPPER) ? 'E' : 'e')); + self->OutStream(self, (isExponentNegative) ? '-' : '+'); + + /* The exponent must contain at least two digits */ + if (requireTwoDigitExponent) + self->OutStream(self, '0'); + + exponentBase = (int)TrioPower(base, exponentDigits - 1); + for (i = 0; i < exponentDigits; i++) + { + self->OutStream(self, digits[(uExponent / exponentBase) % base]); + exponentBase /= base; + } + } + /* Output trailing spaces */ + if (flags & FLAGS_LEFTADJUST) + { + for (i = expectedWidth; i < width; i++) + { + self->OutStream(self, CHAR_ADJUST); + } + } +} + +/************************************************************************* + * TrioFormatProcess + * + * Description: + * This is the main engine for formatting output + */ +TRIO_PRIVATE int +TrioFormatProcess +TRIO_ARGS3((data, format, parameters), + trio_class_t *data, + TRIO_CONST char *format, + trio_parameter_t *parameters) +{ +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + int charlen; +#endif + int i; + TRIO_CONST char *string; + trio_pointer_t pointer; + unsigned long flags; + int width; + int precision; + int base; + int index; + + index = 0; + i = 0; +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + (void)mblen(NULL, 0); +#endif + + while (format[index]) + { +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + if (! isascii(format[index])) + { + charlen = mblen(&format[index], MB_LEN_MAX); + /* + * Only valid multibyte characters are handled here. Invalid + * multibyte characters (charlen == -1) are handled as normal + * characters. + */ + if (charlen != -1) + { + while (charlen-- > 0) + { + data->OutStream(data, format[index++]); + } + continue; /* while characters left in formatting string */ + } + } +#endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */ + if (CHAR_IDENTIFIER == format[index]) + { + if (CHAR_IDENTIFIER == format[index + 1]) + { + data->OutStream(data, CHAR_IDENTIFIER); + index += 2; + } + else + { + /* Skip the parameter entries */ + while (parameters[i].type == FORMAT_PARAMETER) + i++; + + flags = parameters[i].flags; + + /* Find width */ + width = parameters[i].width; + if (flags & FLAGS_WIDTH_PARAMETER) + { + /* Get width from parameter list */ + width = (int)parameters[width].data.number.as_signed; + } + + /* Find precision */ + if (flags & FLAGS_PRECISION) + { + precision = parameters[i].precision; + if (flags & FLAGS_PRECISION_PARAMETER) + { + /* Get precision from parameter list */ + precision = (int)parameters[precision].data.number.as_signed; + } + } + else + { + precision = NO_PRECISION; + } + + /* Find base */ + base = parameters[i].base; + if (flags & FLAGS_BASE_PARAMETER) + { + /* Get base from parameter list */ + base = (int)parameters[base].data.number.as_signed; + } + + switch (parameters[i].type) + { + case FORMAT_CHAR: + if (flags & FLAGS_QUOTE) + data->OutStream(data, CHAR_QUOTE); + if (! (flags & FLAGS_LEFTADJUST)) + { + while (--width > 0) + data->OutStream(data, CHAR_ADJUST); + } +#if TRIO_WIDECHAR + if (flags & FLAGS_WIDECHAR) + { + TrioWriteWideStringCharacter(data, + (trio_wchar_t)parameters[i].data.number.as_signed, + flags, + NO_WIDTH); + } + else +#endif + { + TrioWriteStringCharacter(data, + (int)parameters[i].data.number.as_signed, + flags); + } + + if (flags & FLAGS_LEFTADJUST) + { + while(--width > 0) + data->OutStream(data, CHAR_ADJUST); + } + if (flags & FLAGS_QUOTE) + data->OutStream(data, CHAR_QUOTE); + + break; /* FORMAT_CHAR */ + + case FORMAT_INT: + TrioWriteNumber(data, + parameters[i].data.number.as_unsigned, + flags, + width, + precision, + base); + + break; /* FORMAT_INT */ + + case FORMAT_DOUBLE: + TrioWriteDouble(data, + parameters[i].data.longdoubleNumber, + flags, + width, + precision, + base); + break; /* FORMAT_DOUBLE */ + + case FORMAT_STRING: +#if TRIO_WIDECHAR + if (flags & FLAGS_WIDECHAR) + { + TrioWriteWideString(data, + parameters[i].data.wstring, + flags, + width, + precision); + } + else +#endif + { + TrioWriteString(data, + parameters[i].data.string, + flags, + width, + precision); + } + break; /* FORMAT_STRING */ + + case FORMAT_POINTER: + { + trio_reference_t reference; + + reference.data = data; + reference.parameter = ¶meters[i]; + trio_print_pointer(&reference, parameters[i].data.pointer); + } + break; /* FORMAT_POINTER */ + + case FORMAT_COUNT: + pointer = parameters[i].data.pointer; + if (NULL != pointer) + { + /* + * C99 paragraph 7.19.6.1.8 says "the number of + * characters written to the output stream so far by + * this call", which is data->committed + */ +#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER) + if (flags & FLAGS_SIZE_T) + *(size_t *)pointer = (size_t)data->committed; + else +#endif +#if defined(QUALIFIER_PTRDIFF_T) + if (flags & FLAGS_PTRDIFF_T) + *(ptrdiff_t *)pointer = (ptrdiff_t)data->committed; + else +#endif +#if defined(QUALIFIER_INTMAX_T) + if (flags & FLAGS_INTMAX_T) + *(trio_intmax_t *)pointer = (trio_intmax_t)data->committed; + else +#endif + if (flags & FLAGS_QUAD) + { + *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)data->committed; + } + else if (flags & FLAGS_LONG) + { + *(long int *)pointer = (long int)data->committed; + } + else if (flags & FLAGS_SHORT) + { + *(short int *)pointer = (short int)data->committed; + } + else + { + *(int *)pointer = (int)data->committed; + } + } + break; /* FORMAT_COUNT */ + + case FORMAT_PARAMETER: + break; /* FORMAT_PARAMETER */ + +#if defined(FORMAT_ERRNO) + case FORMAT_ERRNO: + string = trio_error(parameters[i].data.errorNumber); + if (string) + { + TrioWriteString(data, + string, + flags, + width, + precision); + } + else + { + data->OutStream(data, '#'); + TrioWriteNumber(data, + (trio_uintmax_t)parameters[i].data.errorNumber, + flags, + width, + precision, + BASE_DECIMAL); + } + break; /* FORMAT_ERRNO */ +#endif /* defined(FORMAT_ERRNO) */ + +#if defined(FORMAT_USER_DEFINED) + case FORMAT_USER_DEFINED: + { + trio_reference_t reference; + trio_userdef_t *def = NULL; + + if (parameters[i].user_name[0] == NIL) + { + /* Use handle */ + if ((i > 0) || + (parameters[i - 1].type == FORMAT_PARAMETER)) + def = (trio_userdef_t *)parameters[i - 1].data.pointer; + } + else + { + /* Look up namespace */ + def = TrioFindNamespace(parameters[i].user_name, NULL); + } + if (def) { + reference.data = data; + reference.parameter = ¶meters[i]; + def->callback(&reference); + } + } + break; +#endif /* defined(FORMAT_USER_DEFINED) */ + + default: + break; + } /* switch parameter type */ + + /* Prepare for next */ + index = parameters[i].indexAfterSpecifier; + i++; + } + } + else /* not identifier */ + { + data->OutStream(data, format[index++]); + } + } + return data->processed; +} + +/************************************************************************* + * TrioFormatRef + */ +TRIO_PRIVATE int +TrioFormatRef +TRIO_ARGS4((reference, format, arglist, argarray), + trio_reference_t *reference, + TRIO_CONST char *format, + va_list *arglist, + trio_pointer_t *argarray) +{ + int status; + trio_parameter_t parameters[MAX_PARAMETERS]; + + status = TrioParse(TYPE_PRINT, format, parameters, arglist, argarray); + if (status < 0) + return status; + + status = TrioFormatProcess(reference->data, format, parameters); + if (reference->data->error != 0) + { + status = reference->data->error; + } + return status; +} + +/************************************************************************* + * TrioFormat + */ +TRIO_PRIVATE int +TrioFormat +TRIO_ARGS6((destination, destinationSize, OutStream, format, arglist, argarray), + trio_pointer_t destination, + size_t destinationSize, + void (*OutStream) TRIO_PROTO((trio_class_t *, int)), + TRIO_CONST char *format, + va_list *arglist, + trio_pointer_t *argarray) +{ + int status; + trio_class_t data; + trio_parameter_t parameters[MAX_PARAMETERS]; + + assert(VALID(OutStream)); + assert(VALID(format)); + + memset(&data, 0, sizeof(data)); + data.OutStream = OutStream; + data.location = destination; + data.max = destinationSize; + data.error = 0; + +#if defined(USE_LOCALE) + if (NULL == internalLocaleValues) + { + TrioSetLocale(); + } +#endif + + status = TrioParse(TYPE_PRINT, format, parameters, arglist, argarray); + if (status < 0) + return status; + + status = TrioFormatProcess(&data, format, parameters); + if (data.error != 0) + { + status = data.error; + } + return status; +} + +/************************************************************************* + * TrioOutStreamFile + */ +TRIO_PRIVATE void +TrioOutStreamFile +TRIO_ARGS2((self, output), + trio_class_t *self, + int output) +{ + FILE *file; + + assert(VALID(self)); + assert(VALID(self->location)); + + file = (FILE *)self->location; + self->processed++; + if (fputc(output, file) == EOF) + { + self->error = TRIO_ERROR_RETURN(TRIO_EOF, 0); + } + else + { + self->committed++; + } +} + +/************************************************************************* + * TrioOutStreamFileDescriptor + */ +TRIO_PRIVATE void +TrioOutStreamFileDescriptor +TRIO_ARGS2((self, output), + trio_class_t *self, + int output) +{ + int fd; + char ch; + + assert(VALID(self)); + + fd = *((int *)self->location); + ch = (char)output; + self->processed++; + if (write(fd, &ch, sizeof(char)) == -1) + { + self->error = TRIO_ERROR_RETURN(TRIO_ERRNO, 0); + } + else + { + self->committed++; + } +} + +/************************************************************************* + * TrioOutStreamCustom + */ +TRIO_PRIVATE void +TrioOutStreamCustom +TRIO_ARGS2((self, output), + trio_class_t *self, + int output) +{ + int status; + trio_custom_t *data; + + assert(VALID(self)); + assert(VALID(self->location)); + + data = (trio_custom_t *)self->location; + if (data->stream.out) + { + status = (data->stream.out)(data->closure, output); + if (status >= 0) + { + self->committed++; + } + else + { + if (self->error == 0) + { + self->error = TRIO_ERROR_RETURN(TRIO_ECUSTOM, -status); + } + } + } + self->processed++; +} + +/************************************************************************* + * TrioOutStreamString + */ +TRIO_PRIVATE void +TrioOutStreamString +TRIO_ARGS2((self, output), + trio_class_t *self, + int output) +{ + char **buffer; + + assert(VALID(self)); + assert(VALID(self->location)); + + buffer = (char **)self->location; + **buffer = (char)output; + (*buffer)++; + self->processed++; + self->committed++; +} + +/************************************************************************* + * TrioOutStreamStringMax + */ +TRIO_PRIVATE void +TrioOutStreamStringMax +TRIO_ARGS2((self, output), + trio_class_t *self, + int output) +{ + char **buffer; + + assert(VALID(self)); + assert(VALID(self->location)); + + buffer = (char **)self->location; + + if (self->processed < self->max) + { + **buffer = (char)output; + (*buffer)++; + self->committed++; + } + self->processed++; +} + +/************************************************************************* + * TrioOutStreamStringDynamic + */ +TRIO_PRIVATE void +TrioOutStreamStringDynamic +TRIO_ARGS2((self, output), + trio_class_t *self, + int output) +{ + assert(VALID(self)); + assert(VALID(self->location)); + + if (self->error == 0) + { + trio_xstring_append_char((trio_string_t *)self->location, + (char)output); + self->committed++; + } + /* The processed variable must always be increased */ + self->processed++; +} + +/************************************************************************* + * + * Formatted printing functions + * + ************************************************************************/ + +#if defined(TRIO_DOCUMENTATION) +# include "doc/doc_printf.h" +#endif +/** @addtogroup Printf + @{ +*/ + +/************************************************************************* + * printf + */ + +/** + Print to standard output stream. + + @param format Formatting string. + @param ... Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_printf +TRIO_VARGS2((format, va_alist), + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioFormat(stdout, 0, TrioOutStreamFile, format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +/** + Print to standard output stream. + + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_vprintf +TRIO_ARGS2((format, args), + TRIO_CONST char *format, + va_list args) +{ + assert(VALID(format)); + + return TrioFormat(stdout, 0, TrioOutStreamFile, format, &args, NULL); +} + +/** + Print to standard output stream. + + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_printfv +TRIO_ARGS2((format, args), + TRIO_CONST char *format, + trio_pointer_t * args) +{ + assert(VALID(format)); + + return TrioFormat(stdout, 0, TrioOutStreamFile, format, NULL, args); +} + +/************************************************************************* + * fprintf + */ + +/** + Print to file. + + @param file File pointer. + @param format Formatting string. + @param ... Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_fprintf +TRIO_VARGS3((file, format, va_alist), + FILE *file, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(file)); + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioFormat(file, 0, TrioOutStreamFile, format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +/** + Print to file. + + @param file File pointer. + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_vfprintf +TRIO_ARGS3((file, format, args), + FILE *file, + TRIO_CONST char *format, + va_list args) +{ + assert(VALID(file)); + assert(VALID(format)); + + return TrioFormat(file, 0, TrioOutStreamFile, format, &args, NULL); +} + +/** + Print to file. + + @param file File pointer. + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_fprintfv +TRIO_ARGS3((file, format, args), + FILE *file, + TRIO_CONST char *format, + trio_pointer_t * args) +{ + assert(VALID(file)); + assert(VALID(format)); + + return TrioFormat(file, 0, TrioOutStreamFile, format, NULL, args); +} + +/************************************************************************* + * dprintf + */ + +/** + Print to file descriptor. + + @param fd File descriptor. + @param format Formatting string. + @param ... Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_dprintf +TRIO_VARGS3((fd, format, va_alist), + int fd, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +/** + Print to file descriptor. + + @param fd File descriptor. + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_vdprintf +TRIO_ARGS3((fd, format, args), + int fd, + TRIO_CONST char *format, + va_list args) +{ + assert(VALID(format)); + + return TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, &args, NULL); +} + +/** + Print to file descriptor. + + @param fd File descriptor. + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_dprintfv +TRIO_ARGS3((fd, format, args), + int fd, + TRIO_CONST char *format, + trio_pointer_t *args) +{ + assert(VALID(format)); + + return TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, NULL, args); +} + +/************************************************************************* + * cprintf + */ +TRIO_PUBLIC int +trio_cprintf +TRIO_VARGS4((stream, closure, format, va_alist), + trio_outstream_t stream, + trio_pointer_t closure, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + trio_custom_t data; + + assert(VALID(stream)); + assert(VALID(format)); + + TRIO_VA_START(args, format); + data.stream.out = stream; + data.closure = closure; + status = TrioFormat(&data, 0, TrioOutStreamCustom, format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +TRIO_PUBLIC int +trio_vcprintf +TRIO_ARGS4((stream, closure, format, args), + trio_outstream_t stream, + trio_pointer_t closure, + TRIO_CONST char *format, + va_list args) +{ + trio_custom_t data; + + assert(VALID(stream)); + assert(VALID(format)); + + data.stream.out = stream; + data.closure = closure; + return TrioFormat(&data, 0, TrioOutStreamCustom, format, &args, NULL); +} + +TRIO_PUBLIC int +trio_cprintfv +TRIO_ARGS4((stream, closure, format, args), + trio_outstream_t stream, + trio_pointer_t closure, + TRIO_CONST char *format, + void **args) +{ + trio_custom_t data; + + assert(VALID(stream)); + assert(VALID(format)); + + data.stream.out = stream; + data.closure = closure; + return TrioFormat(&data, 0, TrioOutStreamCustom, format, NULL, args); +} + +/************************************************************************* + * sprintf + */ + +/** + Print to string. + + @param buffer Output string. + @param format Formatting string. + @param ... Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_sprintf +TRIO_VARGS3((buffer, format, va_alist), + char *buffer, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(buffer)); + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioFormat(&buffer, 0, TrioOutStreamString, format, &args, NULL); + *buffer = NIL; /* Terminate with NIL character */ + TRIO_VA_END(args); + return status; +} + +/** + Print to string. + + @param buffer Output string. + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_vsprintf +TRIO_ARGS3((buffer, format, args), + char *buffer, + TRIO_CONST char *format, + va_list args) +{ + int status; + + assert(VALID(buffer)); + assert(VALID(format)); + + status = TrioFormat(&buffer, 0, TrioOutStreamString, format, &args, NULL); + *buffer = NIL; + return status; +} + +/** + Print to string. + + @param buffer Output string. + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_sprintfv +TRIO_ARGS3((buffer, format, args), + char *buffer, + TRIO_CONST char *format, + trio_pointer_t *args) +{ + int status; + + assert(VALID(buffer)); + assert(VALID(format)); + + status = TrioFormat(&buffer, 0, TrioOutStreamString, format, NULL, args); + *buffer = NIL; + return status; +} + +/************************************************************************* + * snprintf + */ + +/** + Print at most @p max characters to string. + + @param buffer Output string. + @param max Maximum number of characters to print. + @param format Formatting string. + @param ... Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_snprintf +TRIO_VARGS4((buffer, max, format, va_alist), + char *buffer, + size_t max, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(buffer)); + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioFormat(&buffer, max > 0 ? max - 1 : 0, + TrioOutStreamStringMax, format, &args, NULL); + if (max > 0) + *buffer = NIL; + TRIO_VA_END(args); + return status; +} + +/** + Print at most @p max characters to string. + + @param buffer Output string. + @param max Maximum number of characters to print. + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_vsnprintf +TRIO_ARGS4((buffer, max, format, args), + char *buffer, + size_t max, + TRIO_CONST char *format, + va_list args) +{ + int status; + + assert(VALID(buffer)); + assert(VALID(format)); + + status = TrioFormat(&buffer, max > 0 ? max - 1 : 0, + TrioOutStreamStringMax, format, &args, NULL); + if (max > 0) + *buffer = NIL; + return status; +} + +/** + Print at most @p max characters to string. + + @param buffer Output string. + @param max Maximum number of characters to print. + @param format Formatting string. + @param args Arguments. + @return Number of printed characters. + */ +TRIO_PUBLIC int +trio_snprintfv +TRIO_ARGS4((buffer, max, format, args), + char *buffer, + size_t max, + TRIO_CONST char *format, + trio_pointer_t *args) +{ + int status; + + assert(VALID(buffer)); + assert(VALID(format)); + + status = TrioFormat(&buffer, max > 0 ? max - 1 : 0, + TrioOutStreamStringMax, format, NULL, args); + if (max > 0) + *buffer = NIL; + return status; +} + +/************************************************************************* + * snprintfcat + * Appends the new string to the buffer string overwriting the '\0' + * character at the end of buffer. + */ +TRIO_PUBLIC int +trio_snprintfcat +TRIO_VARGS4((buffer, max, format, va_alist), + char *buffer, + size_t max, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + size_t buf_len; + + TRIO_VA_START(args, format); + + assert(VALID(buffer)); + assert(VALID(format)); + + buf_len = trio_length(buffer); + buffer = &buffer[buf_len]; + + status = TrioFormat(&buffer, max - 1 - buf_len, + TrioOutStreamStringMax, format, &args, NULL); + TRIO_VA_END(args); + *buffer = NIL; + return status; +} + +TRIO_PUBLIC int +trio_vsnprintfcat +TRIO_ARGS4((buffer, max, format, args), + char *buffer, + size_t max, + TRIO_CONST char *format, + va_list args) +{ + int status; + size_t buf_len; + + assert(VALID(buffer)); + assert(VALID(format)); + + buf_len = trio_length(buffer); + buffer = &buffer[buf_len]; + status = TrioFormat(&buffer, max - 1 - buf_len, + TrioOutStreamStringMax, format, &args, NULL); + *buffer = NIL; + return status; +} + +/************************************************************************* + * trio_aprintf + */ + +/* Deprecated */ +TRIO_PUBLIC char * +trio_aprintf +TRIO_VARGS2((format, va_alist), + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + va_list args; + trio_string_t *info; + char *result = NULL; + + assert(VALID(format)); + + info = trio_xstring_duplicate(""); + if (info) + { + TRIO_VA_START(args, format); + (void)TrioFormat(info, 0, TrioOutStreamStringDynamic, + format, &args, NULL); + TRIO_VA_END(args); + + trio_string_terminate(info); + result = trio_string_extract(info); + trio_string_destroy(info); + } + return result; +} + +/* Deprecated */ +TRIO_PUBLIC char * +trio_vaprintf +TRIO_ARGS2((format, args), + TRIO_CONST char *format, + va_list args) +{ + trio_string_t *info; + char *result = NULL; + + assert(VALID(format)); + + info = trio_xstring_duplicate(""); + if (info) + { + (void)TrioFormat(info, 0, TrioOutStreamStringDynamic, + format, &args, NULL); + trio_string_terminate(info); + result = trio_string_extract(info); + trio_string_destroy(info); + } + return result; +} + +TRIO_PUBLIC int +trio_asprintf +TRIO_VARGS3((result, format, va_alist), + char **result, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + va_list args; + int status; + trio_string_t *info; + + assert(VALID(format)); + + *result = NULL; + + info = trio_xstring_duplicate(""); + if (info == NULL) + { + status = TRIO_ERROR_RETURN(TRIO_ENOMEM, 0); + } + else + { + TRIO_VA_START(args, format); + status = TrioFormat(info, 0, TrioOutStreamStringDynamic, + format, &args, NULL); + TRIO_VA_END(args); + if (status >= 0) + { + trio_string_terminate(info); + *result = trio_string_extract(info); + } + trio_string_destroy(info); + } + return status; +} + +TRIO_PUBLIC int +trio_vasprintf +TRIO_ARGS3((result, format, args), + char **result, + TRIO_CONST char *format, + va_list args) +{ + int status; + trio_string_t *info; + + assert(VALID(format)); + + *result = NULL; + + info = trio_xstring_duplicate(""); + if (info == NULL) + { + status = TRIO_ERROR_RETURN(TRIO_ENOMEM, 0); + } + else + { + status = TrioFormat(info, 0, TrioOutStreamStringDynamic, + format, &args, NULL); + if (status >= 0) + { + trio_string_terminate(info); + *result = trio_string_extract(info); + } + trio_string_destroy(info); + } + return status; +} + +/** @} End of Printf documentation module */ + +/************************************************************************* + * + * CALLBACK + * + ************************************************************************/ + +#if defined(TRIO_DOCUMENTATION) +# include "doc/doc_register.h" +#endif +/** + @addtogroup UserDefined + @{ +*/ + +#if TRIO_EXTENSION + +/************************************************************************* + * trio_register + */ + +/** + Register new user-defined specifier. + + @param callback + @param name + @return Handle. + */ +TRIO_PUBLIC trio_pointer_t +trio_register +TRIO_ARGS2((callback, name), + trio_callback_t callback, + TRIO_CONST char *name) +{ + trio_userdef_t *def; + trio_userdef_t *prev = NULL; + + if (callback == NULL) + return NULL; + + if (name) + { + /* Handle built-in namespaces */ + if (name[0] == ':') + { + if (trio_equal(name, ":enter")) + { + internalEnterCriticalRegion = callback; + } + else if (trio_equal(name, ":leave")) + { + internalLeaveCriticalRegion = callback; + } + return NULL; + } + + /* Bail out if namespace is too long */ + if (trio_length(name) >= MAX_USER_NAME) + return NULL; + + /* Bail out if namespace already is registered */ + def = TrioFindNamespace(name, &prev); + if (def) + return NULL; + } + + def = (trio_userdef_t *)TRIO_MALLOC(sizeof(trio_userdef_t)); + if (def) + { + if (internalEnterCriticalRegion) + (void)internalEnterCriticalRegion(NULL); + + if (name) + { + /* Link into internal list */ + if (prev == NULL) + internalUserDef = def; + else + prev->next = def; + } + /* Initialize */ + def->callback = callback; + def->name = (name == NULL) + ? NULL + : trio_duplicate(name); + def->next = NULL; + + if (internalLeaveCriticalRegion) + (void)internalLeaveCriticalRegion(NULL); + } + return (trio_pointer_t)def; +} + +/** + Unregister an existing user-defined specifier. + + @param handle + */ +void +trio_unregister +TRIO_ARGS1((handle), + trio_pointer_t handle) +{ + trio_userdef_t *self = (trio_userdef_t *)handle; + trio_userdef_t *def; + trio_userdef_t *prev = NULL; + + assert(VALID(self)); + + if (self->name) + { + def = TrioFindNamespace(self->name, &prev); + if (def) + { + if (internalEnterCriticalRegion) + (void)internalEnterCriticalRegion(NULL); + + if (prev == NULL) + internalUserDef = NULL; + else + prev->next = def->next; + + if (internalLeaveCriticalRegion) + (void)internalLeaveCriticalRegion(NULL); + } + trio_destroy(self->name); + } + TRIO_FREE(self); +} + +/************************************************************************* + * trio_get_format [public] + */ +TRIO_CONST char * +trio_get_format +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ +#if defined(FORMAT_USER_DEFINED) + assert(((trio_reference_t *)ref)->parameter->type == FORMAT_USER_DEFINED); +#endif + + return (((trio_reference_t *)ref)->parameter->user_data); +} + +/************************************************************************* + * trio_get_argument [public] + */ +trio_pointer_t +trio_get_argument +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ +#if defined(FORMAT_USER_DEFINED) + assert(((trio_reference_t *)ref)->parameter->type == FORMAT_USER_DEFINED); +#endif + + return ((trio_reference_t *)ref)->parameter->data.pointer; +} + +/************************************************************************* + * trio_get_width / trio_set_width [public] + */ +int +trio_get_width +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return ((trio_reference_t *)ref)->parameter->width; +} + +void +trio_set_width +TRIO_ARGS2((ref, width), + trio_pointer_t ref, + int width) +{ + ((trio_reference_t *)ref)->parameter->width = width; +} + +/************************************************************************* + * trio_get_precision / trio_set_precision [public] + */ +int +trio_get_precision +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->precision); +} + +void +trio_set_precision +TRIO_ARGS2((ref, precision), + trio_pointer_t ref, + int precision) +{ + ((trio_reference_t *)ref)->parameter->precision = precision; +} + +/************************************************************************* + * trio_get_base / trio_set_base [public] + */ +int +trio_get_base +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->base); +} + +void +trio_set_base +TRIO_ARGS2((ref, base), + trio_pointer_t ref, + int base) +{ + ((trio_reference_t *)ref)->parameter->base = base; +} + +/************************************************************************* + * trio_get_long / trio_set_long [public] + */ +int +trio_get_long +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LONG); +} + +void +trio_set_long +TRIO_ARGS2((ref, is_long), + trio_pointer_t ref, + int is_long) +{ + if (is_long) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LONG; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LONG; +} + +/************************************************************************* + * trio_get_longlong / trio_set_longlong [public] + */ +int +trio_get_longlong +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_QUAD); +} + +void +trio_set_longlong +TRIO_ARGS2((ref, is_longlong), + trio_pointer_t ref, + int is_longlong) +{ + if (is_longlong) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_QUAD; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_QUAD; +} + +/************************************************************************* + * trio_get_longdouble / trio_set_longdouble [public] + */ +int +trio_get_longdouble +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LONGDOUBLE); +} + +void +trio_set_longdouble +TRIO_ARGS2((ref, is_longdouble), + trio_pointer_t ref, + int is_longdouble) +{ + if (is_longdouble) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LONGDOUBLE; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LONGDOUBLE; +} + +/************************************************************************* + * trio_get_short / trio_set_short [public] + */ +int +trio_get_short +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHORT); +} + +void +trio_set_short +TRIO_ARGS2((ref, is_short), + trio_pointer_t ref, + int is_short) +{ + if (is_short) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHORT; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHORT; +} + +/************************************************************************* + * trio_get_shortshort / trio_set_shortshort [public] + */ +int +trio_get_shortshort +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHORTSHORT); +} + +void +trio_set_shortshort +TRIO_ARGS2((ref, is_shortshort), + trio_pointer_t ref, + int is_shortshort) +{ + if (is_shortshort) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHORTSHORT; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHORTSHORT; +} + +/************************************************************************* + * trio_get_alternative / trio_set_alternative [public] + */ +int +trio_get_alternative +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_ALTERNATIVE); +} + +void +trio_set_alternative +TRIO_ARGS2((ref, is_alternative), + trio_pointer_t ref, + int is_alternative) +{ + if (is_alternative) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_ALTERNATIVE; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_ALTERNATIVE; +} + +/************************************************************************* + * trio_get_alignment / trio_set_alignment [public] + */ +int +trio_get_alignment +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_LEFTADJUST); +} + +void +trio_set_alignment +TRIO_ARGS2((ref, is_leftaligned), + trio_pointer_t ref, + int is_leftaligned) +{ + if (is_leftaligned) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_LEFTADJUST; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_LEFTADJUST; +} + +/************************************************************************* + * trio_get_spacing /trio_set_spacing [public] + */ +int +trio_get_spacing +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SPACE); +} + +void +trio_set_spacing +TRIO_ARGS2((ref, is_space), + trio_pointer_t ref, + int is_space) +{ + if (is_space) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SPACE; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SPACE; +} + +/************************************************************************* + * trio_get_sign / trio_set_sign [public] + */ +int +trio_get_sign +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SHOWSIGN); +} + +void +trio_set_sign +TRIO_ARGS2((ref, is_sign), + trio_pointer_t ref, + int is_sign) +{ + if (is_sign) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SHOWSIGN; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SHOWSIGN; +} + +/************************************************************************* + * trio_get_padding / trio_set_padding [public] + */ +int +trio_get_padding +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_NILPADDING); +} + +void +trio_set_padding +TRIO_ARGS2((ref, is_padding), + trio_pointer_t ref, + int is_padding) +{ + if (is_padding) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_NILPADDING; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_NILPADDING; +} + +/************************************************************************* + * trio_get_quote / trio_set_quote [public] + */ +int +trio_get_quote +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_QUOTE); +} + +void +trio_set_quote +TRIO_ARGS2((ref, is_quote), + trio_pointer_t ref, + int is_quote) +{ + if (is_quote) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_QUOTE; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_QUOTE; +} + +/************************************************************************* + * trio_get_upper / trio_set_upper [public] + */ +int +trio_get_upper +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_UPPER); +} + +void +trio_set_upper +TRIO_ARGS2((ref, is_upper), + trio_pointer_t ref, + int is_upper) +{ + if (is_upper) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_UPPER; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_UPPER; +} + +/************************************************************************* + * trio_get_largest / trio_set_largest [public] + */ +#if TRIO_C99 +int +trio_get_largest +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_INTMAX_T); +} + +void +trio_set_largest +TRIO_ARGS2((ref, is_largest), + trio_pointer_t ref, + int is_largest) +{ + if (is_largest) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_INTMAX_T; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_INTMAX_T; +} +#endif + +/************************************************************************* + * trio_get_ptrdiff / trio_set_ptrdiff [public] + */ +int +trio_get_ptrdiff +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_PTRDIFF_T); +} + +void +trio_set_ptrdiff +TRIO_ARGS2((ref, is_ptrdiff), + trio_pointer_t ref, + int is_ptrdiff) +{ + if (is_ptrdiff) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_PTRDIFF_T; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_PTRDIFF_T; +} + +/************************************************************************* + * trio_get_size / trio_set_size [public] + */ +#if TRIO_C99 +int +trio_get_size +TRIO_ARGS1((ref), + trio_pointer_t ref) +{ + return (((trio_reference_t *)ref)->parameter->flags & FLAGS_SIZE_T); +} + +void +trio_set_size +TRIO_ARGS2((ref, is_size), + trio_pointer_t ref, + int is_size) +{ + if (is_size) + ((trio_reference_t *)ref)->parameter->flags |= FLAGS_SIZE_T; + else + ((trio_reference_t *)ref)->parameter->flags &= ~FLAGS_SIZE_T; +} +#endif + +/************************************************************************* + * trio_print_int [public] + */ +void +trio_print_int +TRIO_ARGS2((ref, number), + trio_pointer_t ref, + int number) +{ + trio_reference_t *self = (trio_reference_t *)ref; + + TrioWriteNumber(self->data, + (trio_uintmax_t)number, + self->parameter->flags, + self->parameter->width, + self->parameter->precision, + self->parameter->base); +} + +/************************************************************************* + * trio_print_uint [public] + */ +void +trio_print_uint +TRIO_ARGS2((ref, number), + trio_pointer_t ref, + unsigned int number) +{ + trio_reference_t *self = (trio_reference_t *)ref; + + TrioWriteNumber(self->data, + (trio_uintmax_t)number, + self->parameter->flags | FLAGS_UNSIGNED, + self->parameter->width, + self->parameter->precision, + self->parameter->base); +} + +/************************************************************************* + * trio_print_double [public] + */ +void +trio_print_double +TRIO_ARGS2((ref, number), + trio_pointer_t ref, + double number) +{ + trio_reference_t *self = (trio_reference_t *)ref; + + TrioWriteDouble(self->data, + number, + self->parameter->flags, + self->parameter->width, + self->parameter->precision, + self->parameter->base); +} + +/************************************************************************* + * trio_print_string [public] + */ +void +trio_print_string +TRIO_ARGS2((ref, string), + trio_pointer_t ref, + char *string) +{ + trio_reference_t *self = (trio_reference_t *)ref; + + TrioWriteString(self->data, + string, + self->parameter->flags, + self->parameter->width, + self->parameter->precision); +} + +/************************************************************************* + * trio_print_ref [public] + */ +int +trio_print_ref +TRIO_VARGS3((ref, format, va_alist), + trio_pointer_t ref, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list arglist; + + assert(VALID(format)); + + TRIO_VA_START(arglist, format); + status = TrioFormatRef((trio_reference_t *)ref, format, &arglist, NULL); + TRIO_VA_END(arglist); + return status; +} + +/************************************************************************* + * trio_vprint_ref [public] + */ +int +trio_vprint_ref +TRIO_ARGS3((ref, format, arglist), + trio_pointer_t ref, + TRIO_CONST char *format, + va_list arglist) +{ + assert(VALID(format)); + + return TrioFormatRef((trio_reference_t *)ref, format, &arglist, NULL); +} + +/************************************************************************* + * trio_printv_ref [public] + */ +int +trio_printv_ref +TRIO_ARGS3((ref, format, argarray), + trio_pointer_t ref, + TRIO_CONST char *format, + trio_pointer_t *argarray) +{ + assert(VALID(format)); + + return TrioFormatRef((trio_reference_t *)ref, format, NULL, argarray); +} + +#endif /* TRIO_EXTENSION */ + +/************************************************************************* + * trio_print_pointer [public] + */ +void +trio_print_pointer +TRIO_ARGS2((ref, pointer), + trio_pointer_t ref, + trio_pointer_t pointer) +{ + trio_reference_t *self = (trio_reference_t *)ref; + unsigned long flags; + trio_uintmax_t number; + + if (NULL == pointer) + { + TRIO_CONST char *string = internalNullString; + while (*string) + self->data->OutStream(self->data, *string++); + } + else + { + /* + * The subtraction of the null pointer is a workaround + * to avoid a compiler warning. The performance overhead + * is negligible (and likely to be removed by an + * optimizing compiler). The (char *) casting is done + * to please ANSI C++. + */ + number = (trio_uintmax_t)((char *)pointer - (char *)0); + /* Shrink to size of pointer */ + number &= (trio_uintmax_t)-1; + flags = self->parameter->flags; + flags |= (FLAGS_UNSIGNED | FLAGS_ALTERNATIVE | + FLAGS_NILPADDING); + TrioWriteNumber(self->data, + number, + flags, + POINTER_WIDTH, + NO_PRECISION, + BASE_HEX); + } +} + +/** @} End of UserDefined documentation module */ + +/************************************************************************* + * + * LOCALES + * + ************************************************************************/ + +/************************************************************************* + * trio_locale_set_decimal_point + * + * Decimal point can only be one character. The input argument is a + * string to enable multibyte characters. At most MB_LEN_MAX characters + * will be used. + */ +TRIO_PUBLIC void +trio_locale_set_decimal_point +TRIO_ARGS1((decimalPoint), + char *decimalPoint) +{ +#if defined(USE_LOCALE) + if (NULL == internalLocaleValues) + { + TrioSetLocale(); + } +#endif + internalDecimalPointLength = trio_length(decimalPoint); + if (internalDecimalPointLength == 1) + { + internalDecimalPoint = *decimalPoint; + } + else + { + internalDecimalPoint = NIL; + trio_copy_max(internalDecimalPointString, + sizeof(internalDecimalPointString), + decimalPoint); + } +} + +/************************************************************************* + * trio_locale_set_thousand_separator + * + * See trio_locale_set_decimal_point + */ +TRIO_PUBLIC void +trio_locale_set_thousand_separator +TRIO_ARGS1((thousandSeparator), + char *thousandSeparator) +{ +#if defined(USE_LOCALE) + if (NULL == internalLocaleValues) + { + TrioSetLocale(); + } +#endif + trio_copy_max(internalThousandSeparator, + sizeof(internalThousandSeparator), + thousandSeparator); + internalThousandSeparatorLength = trio_length(internalThousandSeparator); +} + +/************************************************************************* + * trio_locale_set_grouping + * + * Array of bytes. Reversed order. + * + * CHAR_MAX : No further grouping + * 0 : Repeat last group for the remaining digits (not necessary + * as C strings are zero-terminated) + * n : Set current group to n + * + * Same order as the grouping attribute in LC_NUMERIC. + */ +TRIO_PUBLIC void +trio_locale_set_grouping +TRIO_ARGS1((grouping), + char *grouping) +{ +#if defined(USE_LOCALE) + if (NULL == internalLocaleValues) + { + TrioSetLocale(); + } +#endif + trio_copy_max(internalGrouping, + sizeof(internalGrouping), + grouping); +} + + +/************************************************************************* + * + * SCANNING + * + ************************************************************************/ + +/************************************************************************* + * TrioSkipWhitespaces + */ +TRIO_PRIVATE int +TrioSkipWhitespaces +TRIO_ARGS1((self), + trio_class_t *self) +{ + int ch; + + ch = self->current; + while (isspace(ch)) + { + self->InStream(self, &ch); + } + return ch; +} + +/************************************************************************* + * TrioGetCollation + */ +#if TRIO_EXTENSION +TRIO_PRIVATE void +TrioGetCollation(TRIO_NOARGS) +{ + int i; + int j; + int k; + char first[2]; + char second[2]; + + /* This is computational expensive */ + first[1] = NIL; + second[1] = NIL; + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + { + k = 0; + first[0] = (char)i; + for (j = 0; j < MAX_CHARACTER_CLASS; j++) + { + second[0] = (char)j; + if (trio_equal_locale(first, second)) + internalCollationArray[i][k++] = (char)j; + } + internalCollationArray[i][k] = NIL; + } +} +#endif + +/************************************************************************* + * TrioGetCharacterClass + * + * FIXME: + * multibyte + */ +TRIO_PRIVATE int +TrioGetCharacterClass +TRIO_ARGS4((format, indexPointer, flagsPointer, characterclass), + TRIO_CONST char *format, + int *indexPointer, + unsigned long *flagsPointer, + int *characterclass) +{ + int index = *indexPointer; + int i; + char ch; + char range_begin; + char range_end; + + *flagsPointer &= ~FLAGS_EXCLUDE; + + if (format[index] == QUALIFIER_CIRCUMFLEX) + { + *flagsPointer |= FLAGS_EXCLUDE; + index++; + } + /* + * If the ungroup character is at the beginning of the scanlist, + * it will be part of the class, and a second ungroup character + * must follow to end the group. + */ + if (format[index] == SPECIFIER_UNGROUP) + { + characterclass[(int)SPECIFIER_UNGROUP]++; + index++; + } + /* + * Minus is used to specify ranges. To include minus in the class, + * it must be at the beginning of the list + */ + if (format[index] == QUALIFIER_MINUS) + { + characterclass[(int)QUALIFIER_MINUS]++; + index++; + } + /* Collect characters */ + for (ch = format[index]; + (ch != SPECIFIER_UNGROUP) && (ch != NIL); + ch = format[++index]) + { + switch (ch) + { + case QUALIFIER_MINUS: /* Scanlist ranges */ + + /* + * Both C99 and UNIX98 describes ranges as implementation- + * defined. + * + * We support the following behaviour (although this may + * change as we become wiser) + * - only increasing ranges, ie. [a-b] but not [b-a] + * - transitive ranges, ie. [a-b-c] == [a-c] + * - trailing minus, ie. [a-] is interpreted as an 'a' + * and a '-' + * - duplicates (although we can easily convert these + * into errors) + */ + range_begin = format[index - 1]; + range_end = format[++index]; + if (range_end == SPECIFIER_UNGROUP) + { + /* Trailing minus is included */ + characterclass[(int)ch]++; + ch = range_end; + break; /* for */ + } + if (range_end == NIL) + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + if (range_begin > range_end) + return TRIO_ERROR_RETURN(TRIO_ERANGE, index); + + for (i = (int)range_begin; i <= (int)range_end; i++) + characterclass[i]++; + + ch = range_end; + break; + +#if TRIO_EXTENSION + + case SPECIFIER_GROUP: + + switch (format[index + 1]) + { + case QUALIFIER_DOT: /* Collating symbol */ + /* + * FIXME: This will be easier to implement when multibyte + * characters have been implemented. Until now, we ignore + * this feature. + */ + for (i = index + 2; ; i++) + { + if (format[i] == NIL) + /* Error in syntax */ + return -1; + else if (format[i] == QUALIFIER_DOT) + break; /* for */ + } + if (format[++i] != SPECIFIER_UNGROUP) + return -1; + + index = i; + break; + + case QUALIFIER_EQUAL: /* Equivalence class expressions */ + { + unsigned int j; + unsigned int k; + + if (internalCollationUnconverted) + { + /* Lazy evaluation of collation array */ + TrioGetCollation(); + internalCollationUnconverted = FALSE; + } + for (i = index + 2; ; i++) + { + if (format[i] == NIL) + /* Error in syntax */ + return -1; + else if (format[i] == QUALIFIER_EQUAL) + break; /* for */ + else + { + /* Mark any equivalent character */ + k = (unsigned int)format[i]; + for (j = 0; internalCollationArray[k][j] != NIL; j++) + characterclass[(int)internalCollationArray[k][j]]++; + } + } + if (format[++i] != SPECIFIER_UNGROUP) + return -1; + + index = i; + } + break; + + case QUALIFIER_COLON: /* Character class expressions */ + + if (trio_equal_max(CLASS_ALNUM, sizeof(CLASS_ALNUM) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (isalnum(i)) + characterclass[i]++; + index += sizeof(CLASS_ALNUM) - 1; + } + else if (trio_equal_max(CLASS_ALPHA, sizeof(CLASS_ALPHA) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (isalpha(i)) + characterclass[i]++; + index += sizeof(CLASS_ALPHA) - 1; + } + else if (trio_equal_max(CLASS_CNTRL, sizeof(CLASS_CNTRL) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (iscntrl(i)) + characterclass[i]++; + index += sizeof(CLASS_CNTRL) - 1; + } + else if (trio_equal_max(CLASS_DIGIT, sizeof(CLASS_DIGIT) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (isdigit(i)) + characterclass[i]++; + index += sizeof(CLASS_DIGIT) - 1; + } + else if (trio_equal_max(CLASS_GRAPH, sizeof(CLASS_GRAPH) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (isgraph(i)) + characterclass[i]++; + index += sizeof(CLASS_GRAPH) - 1; + } + else if (trio_equal_max(CLASS_LOWER, sizeof(CLASS_LOWER) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (islower(i)) + characterclass[i]++; + index += sizeof(CLASS_LOWER) - 1; + } + else if (trio_equal_max(CLASS_PRINT, sizeof(CLASS_PRINT) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (isprint(i)) + characterclass[i]++; + index += sizeof(CLASS_PRINT) - 1; + } + else if (trio_equal_max(CLASS_PUNCT, sizeof(CLASS_PUNCT) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (ispunct(i)) + characterclass[i]++; + index += sizeof(CLASS_PUNCT) - 1; + } + else if (trio_equal_max(CLASS_SPACE, sizeof(CLASS_SPACE) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (isspace(i)) + characterclass[i]++; + index += sizeof(CLASS_SPACE) - 1; + } + else if (trio_equal_max(CLASS_UPPER, sizeof(CLASS_UPPER) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (isupper(i)) + characterclass[i]++; + index += sizeof(CLASS_UPPER) - 1; + } + else if (trio_equal_max(CLASS_XDIGIT, sizeof(CLASS_XDIGIT) - 1, + &format[index])) + { + for (i = 0; i < MAX_CHARACTER_CLASS; i++) + if (isxdigit(i)) + characterclass[i]++; + index += sizeof(CLASS_XDIGIT) - 1; + } + else + { + characterclass[(int)ch]++; + } + break; + + default: + characterclass[(int)ch]++; + break; + } + break; + +#endif /* TRIO_EXTENSION */ + + default: + characterclass[(int)ch]++; + break; + } + } + return 0; +} + +/************************************************************************* + * TrioReadNumber + * + * We implement our own number conversion in preference of strtol and + * strtoul, because we must handle 'long long' and thousand separators. + */ +TRIO_PRIVATE BOOLEAN_T +TrioReadNumber +TRIO_ARGS5((self, target, flags, width, base), + trio_class_t *self, + trio_uintmax_t *target, + unsigned long flags, + int width, + int base) +{ + trio_uintmax_t number = 0; + int digit; + int count; + BOOLEAN_T isNegative = FALSE; + BOOLEAN_T gotNumber = FALSE; + int j; + + assert(VALID(self)); + assert(VALID(self->InStream)); + assert((base >= MIN_BASE && base <= MAX_BASE) || (base == NO_BASE)); + + if (internalDigitsUnconverted) + { + /* Lazy evaluation of digits array */ + memset(internalDigitArray, -1, sizeof(internalDigitArray)); + for (j = 0; j < (int)sizeof(internalDigitsLower) - 1; j++) + { + internalDigitArray[(int)internalDigitsLower[j]] = j; + internalDigitArray[(int)internalDigitsUpper[j]] = j; + } + internalDigitsUnconverted = FALSE; + } + + TrioSkipWhitespaces(self); + + if (!(flags & FLAGS_UNSIGNED)) + { + /* Leading sign */ + if (self->current == '+') + { + self->InStream(self, NULL); + } + else if (self->current == '-') + { + self->InStream(self, NULL); + isNegative = TRUE; + } + } + + count = self->processed; + + if (flags & FLAGS_ALTERNATIVE) + { + switch (base) + { + case NO_BASE: + case BASE_OCTAL: + case BASE_HEX: + case BASE_BINARY: + if (self->current == '0') + { + self->InStream(self, NULL); + if (self->current) + { + if ((base == BASE_HEX) && + (toupper(self->current) == 'X')) + { + self->InStream(self, NULL); + } + else if ((base == BASE_BINARY) && + (toupper(self->current) == 'B')) + { + self->InStream(self, NULL); + } + } + } + else + return FALSE; + break; + default: + break; + } + } + + while (((width == NO_WIDTH) || (self->processed - count < width)) && + (! ((self->current == EOF) || isspace(self->current)))) + { + if (isascii(self->current)) + { + digit = internalDigitArray[self->current]; + /* Abort if digit is not allowed in the specified base */ + if ((digit == -1) || (digit >= base)) + break; + } + else if (flags & FLAGS_QUOTE) + { + /* Compare with thousands separator */ + for (j = 0; internalThousandSeparator[j] && self->current; j++) + { + if (internalThousandSeparator[j] != self->current) + break; + + self->InStream(self, NULL); + } + if (internalThousandSeparator[j]) + break; /* Mismatch */ + else + continue; /* Match */ + } + else + break; + + number *= base; + number += digit; + gotNumber = TRUE; /* we need at least one digit */ + + self->InStream(self, NULL); + } + + /* Was anything read at all? */ + if (!gotNumber) + return FALSE; + + if (target) + *target = (isNegative) ? -((trio_intmax_t)number) : number; + return TRUE; +} + +/************************************************************************* + * TrioReadChar + */ +TRIO_PRIVATE int +TrioReadChar +TRIO_ARGS4((self, target, flags, width), + trio_class_t *self, + char *target, + unsigned long flags, + int width) +{ + int i; + char ch; + trio_uintmax_t number; + + assert(VALID(self)); + assert(VALID(self->InStream)); + + for (i = 0; + (self->current != EOF) && (i < width); + i++) + { + ch = (char)self->current; + self->InStream(self, NULL); + if ((flags & FLAGS_ALTERNATIVE) && (ch == CHAR_BACKSLASH)) + { + switch (self->current) + { + case '\\': ch = '\\'; break; + case 'a': ch = '\007'; break; + case 'b': ch = '\b'; break; + case 'f': ch = '\f'; break; + case 'n': ch = '\n'; break; + case 'r': ch = '\r'; break; + case 't': ch = '\t'; break; + case 'v': ch = '\v'; break; + default: + if (isdigit(self->current)) + { + /* Read octal number */ + if (!TrioReadNumber(self, &number, 0, 3, BASE_OCTAL)) + return 0; + ch = (char)number; + } + else if (toupper(self->current) == 'X') + { + /* Read hexadecimal number */ + self->InStream(self, NULL); + if (!TrioReadNumber(self, &number, 0, 2, BASE_HEX)) + return 0; + ch = (char)number; + } + else + { + ch = (char)self->current; + } + break; + } + } + + if (target) + target[i] = ch; + } + return i + 1; +} + +/************************************************************************* + * TrioReadString + */ +TRIO_PRIVATE BOOLEAN_T +TrioReadString +TRIO_ARGS4((self, target, flags, width), + trio_class_t *self, + char *target, + unsigned long flags, + int width) +{ + int i; + + assert(VALID(self)); + assert(VALID(self->InStream)); + + TrioSkipWhitespaces(self); + + /* + * Continue until end of string is reached, a whitespace is encountered, + * or width is exceeded + */ + for (i = 0; + ((width == NO_WIDTH) || (i < width)) && + (! ((self->current == EOF) || isspace(self->current))); + i++) + { + if (TrioReadChar(self, (target ? &target[i] : 0), flags, 1) == 0) + break; /* for */ + } + if (target) + target[i] = NIL; + return TRUE; +} + +/************************************************************************* + * TrioReadWideChar + */ +#if TRIO_WIDECHAR +TRIO_PRIVATE int +TrioReadWideChar +TRIO_ARGS4((self, target, flags, width), + trio_class_t *self, + trio_wchar_t *target, + unsigned long flags, + int width) +{ + int i; + int j; + int size; + int amount = 0; + trio_wchar_t wch; + char buffer[MB_LEN_MAX + 1]; + + assert(VALID(self)); + assert(VALID(self->InStream)); + + for (i = 0; + (self->current != EOF) && (i < width); + i++) + { + if (isascii(self->current)) + { + if (TrioReadChar(self, buffer, flags, 1) == 0) + return 0; + buffer[1] = NIL; + } + else + { + /* + * Collect a multibyte character, by enlarging buffer until + * it contains a fully legal multibyte character, or the + * buffer is full. + */ + j = 0; + do + { + buffer[j++] = (char)self->current; + buffer[j] = NIL; + self->InStream(self, NULL); + } + while ((j < (int)sizeof(buffer)) && (mblen(buffer, (size_t)j) != j)); + } + if (target) + { + size = mbtowc(&wch, buffer, sizeof(buffer)); + if (size > 0) + target[i] = wch; + } + amount += size; + self->InStream(self, NULL); + } + return amount; +} +#endif /* TRIO_WIDECHAR */ + +/************************************************************************* + * TrioReadWideString + */ +#if TRIO_WIDECHAR +TRIO_PRIVATE BOOLEAN_T +TrioReadWideString +TRIO_ARGS4((self, target, flags, width), + trio_class_t *self, + trio_wchar_t *target, + unsigned long flags, + int width) +{ + int i; + int size; + + assert(VALID(self)); + assert(VALID(self->InStream)); + + TrioSkipWhitespaces(self); + +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + (void)mblen(NULL, 0); +#endif + + /* + * Continue until end of string is reached, a whitespace is encountered, + * or width is exceeded + */ + for (i = 0; + ((width == NO_WIDTH) || (i < width)) && + (! ((self->current == EOF) || isspace(self->current))); + ) + { + size = TrioReadWideChar(self, &target[i], flags, 1); + if (size == 0) + break; /* for */ + + i += size; + } + if (target) + target[i] = WCONST('\0'); + return TRUE; +} +#endif /* TRIO_WIDECHAR */ + +/************************************************************************* + * TrioReadGroup + * + * FIXME: characterclass does not work with multibyte characters + */ +TRIO_PRIVATE BOOLEAN_T +TrioReadGroup +TRIO_ARGS5((self, target, characterclass, flags, width), + trio_class_t *self, + char *target, + int *characterclass, + unsigned long flags, + int width) +{ + int ch; + int i; + + assert(VALID(self)); + assert(VALID(self->InStream)); + + ch = self->current; + for (i = 0; + ((width == NO_WIDTH) || (i < width)) && + (! ((ch == EOF) || + (((flags & FLAGS_EXCLUDE) != 0) ^ (characterclass[ch] == 0)))); + i++) + { + if (target) + target[i] = (char)ch; + self->InStream(self, &ch); + } + + if (target) + target[i] = NIL; + return TRUE; +} + +/************************************************************************* + * TrioReadDouble + * + * FIXME: + * add long double + * handle base + */ +TRIO_PRIVATE BOOLEAN_T +TrioReadDouble +TRIO_ARGS4((self, target, flags, width), + trio_class_t *self, + trio_pointer_t target, + unsigned long flags, + int width) +{ + int ch; + char doubleString[512]; + int index = 0; + int start; + int j; + BOOLEAN_T isHex = FALSE; + + doubleString[0] = 0; + + if ((width == NO_WIDTH) || (width > (int)sizeof(doubleString) - 1)) + width = sizeof(doubleString) - 1; + + TrioSkipWhitespaces(self); + + /* + * Read entire double number from stream. trio_to_double requires + * a string as input, but InStream can be anything, so we have to + * collect all characters. + */ + ch = self->current; + if ((ch == '+') || (ch == '-')) + { + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + width--; + } + + start = index; + switch (ch) + { + case 'n': + case 'N': + /* Not-a-number */ + if (index != 0) + break; + /* FALLTHROUGH */ + case 'i': + case 'I': + /* Infinity */ + while (isalpha(ch) && (index - start < width)) + { + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + } + doubleString[index] = NIL; + + /* Case insensitive string comparison */ + if (trio_equal(&doubleString[start], INFINITE_UPPER) || + trio_equal(&doubleString[start], LONG_INFINITE_UPPER)) + { + if (flags & FLAGS_LONGDOUBLE) + { + if ((start == 1) && (doubleString[0] == '-')) + { + *((trio_long_double_t *)target) = trio_ninf(); + } + else + { + *((trio_long_double_t *)target) = trio_pinf(); + } + } + else + { + if ((start == 1) && (doubleString[0] == '-')) + { + *((double *)target) = trio_ninf(); + } + else + { + *((double *)target) = trio_pinf(); + } + } + return TRUE; + } + if (trio_equal(doubleString, NAN_UPPER)) + { + /* NaN must not have a preceeding + nor - */ + if (flags & FLAGS_LONGDOUBLE) + { + *((trio_long_double_t *)target) = trio_nan(); + } + else + { + *((double *)target) = trio_nan(); + } + return TRUE; + } + return FALSE; + + case '0': + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + if (toupper(ch) == 'X') + { + isHex = TRUE; + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + } + break; + + default: + break; + } + + while ((ch != EOF) && (index - start < width)) + { + /* Integer part */ + if (isHex ? isxdigit(ch) : isdigit(ch)) + { + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + } + else if (flags & FLAGS_QUOTE) + { + /* Compare with thousands separator */ + for (j = 0; internalThousandSeparator[j] && self->current; j++) + { + if (internalThousandSeparator[j] != self->current) + break; + + self->InStream(self, &ch); + } + if (internalThousandSeparator[j]) + break; /* Mismatch */ + else + continue; /* Match */ + } + else + break; /* while */ + } + if (ch == '.') + { + /* Decimal part */ + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + while ((isHex ? isxdigit(ch) : isdigit(ch)) && + (index - start < width)) + { + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + } + if (isHex ? (toupper(ch) == 'P') : (toupper(ch) == 'E')) + { + /* Exponent */ + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + if ((ch == '+') || (ch == '-')) + { + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + } + while ((isHex ? isxdigit(ch) : isdigit(ch)) && + (index - start < width)) + { + doubleString[index++] = (char)ch; + self->InStream(self, &ch); + } + } + } + + if ((index == start) || (*doubleString == NIL)) + return FALSE; + + doubleString[index] = 0; + + if (flags & FLAGS_LONGDOUBLE) + { + *((trio_long_double_t *)target) = trio_to_long_double(doubleString, NULL); + } + else + { + *((double *)target) = trio_to_double(doubleString, NULL); + } + return TRUE; +} + +/************************************************************************* + * TrioReadPointer + */ +TRIO_PRIVATE BOOLEAN_T +TrioReadPointer +TRIO_ARGS3((self, target, flags), + trio_class_t *self, + trio_pointer_t *target, + unsigned long flags) +{ + trio_uintmax_t number; + char buffer[sizeof(internalNullString)]; + + flags |= (FLAGS_UNSIGNED | FLAGS_ALTERNATIVE | FLAGS_NILPADDING); + + if (TrioReadNumber(self, + &number, + flags, + POINTER_WIDTH, + BASE_HEX)) + { + /* + * The strange assignment of number is a workaround for a compiler + * warning + */ + if (target) + *target = (char *)0 + number; + return TRUE; + } + else if (TrioReadString(self, + (flags & FLAGS_IGNORE) + ? NULL + : buffer, + 0, + sizeof(internalNullString) - 1)) + { + if (trio_equal_case(buffer, internalNullString)) + { + if (target) + *target = NULL; + return TRUE; + } + } + return FALSE; +} + +/************************************************************************* + * TrioScanProcess + */ +TRIO_PRIVATE int +TrioScanProcess +TRIO_ARGS3((data, format, parameters), + trio_class_t *data, + TRIO_CONST char *format, + trio_parameter_t *parameters) +{ +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + int charlen; + int cnt; +#endif + int assignment; + int ch; + int index; /* Index of format string */ + int i; /* Index of current parameter */ + unsigned long flags; + int width; + int base; + trio_pointer_t pointer; + + assignment = 0; + i = 0; + index = 0; + data->InStream(data, &ch); + +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + (void)mblen(NULL, 0); +#endif + + while (format[index]) + { +#if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) + if (! isascii(format[index])) + { + charlen = mblen(&format[index], MB_LEN_MAX); + if (charlen != -1) + { + /* Compare multibyte characters in format string */ + for (cnt = 0; cnt < charlen - 1; cnt++) + { + if (ch != format[index + cnt]) + { + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + } + data->InStream(data, &ch); + } + continue; /* while characters left in formatting string */ + } + } +#endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */ + + if ((EOF == ch) && (parameters[i].type != FORMAT_COUNT)) + { + return (assignment > 0) ? assignment : EOF; + } + + if (CHAR_IDENTIFIER == format[index]) + { + if (CHAR_IDENTIFIER == format[index + 1]) + { + /* Two % in format matches one % in input stream */ + if (CHAR_IDENTIFIER == ch) + { + data->InStream(data, &ch); + index += 2; + continue; /* while format chars left */ + } + else + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + } + + /* Skip the parameter entries */ + while (parameters[i].type == FORMAT_PARAMETER) + i++; + + flags = parameters[i].flags; + /* Find width */ + width = parameters[i].width; + if (flags & FLAGS_WIDTH_PARAMETER) + { + /* Get width from parameter list */ + width = (int)parameters[width].data.number.as_signed; + } + /* Find base */ + base = parameters[i].base; + if (flags & FLAGS_BASE_PARAMETER) + { + /* Get base from parameter list */ + base = (int)parameters[base].data.number.as_signed; + } + + switch (parameters[i].type) + { + case FORMAT_INT: + { + trio_uintmax_t number; + + if (0 == base) + base = BASE_DECIMAL; + + if (!TrioReadNumber(data, + &number, + flags, + width, + base)) + return assignment; + + if (!(flags & FLAGS_IGNORE)) + { + assignment++; + + pointer = parameters[i].data.pointer; +#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER) + if (flags & FLAGS_SIZE_T) + *(size_t *)pointer = (size_t)number; + else +#endif +#if defined(QUALIFIER_PTRDIFF_T) + if (flags & FLAGS_PTRDIFF_T) + *(ptrdiff_t *)pointer = (ptrdiff_t)number; + else +#endif +#if defined(QUALIFIER_INTMAX_T) + if (flags & FLAGS_INTMAX_T) + *(trio_intmax_t *)pointer = (trio_intmax_t)number; + else +#endif + if (flags & FLAGS_QUAD) + *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)number; + else if (flags & FLAGS_LONG) + *(long int *)pointer = (long int)number; + else if (flags & FLAGS_SHORT) + *(short int *)pointer = (short int)number; + else + *(int *)pointer = (int)number; + } + } + break; /* FORMAT_INT */ + + case FORMAT_STRING: +#if TRIO_WIDECHAR + if (flags & FLAGS_WIDECHAR) + { + if (!TrioReadWideString(data, + (flags & FLAGS_IGNORE) + ? NULL + : parameters[i].data.wstring, + flags, + width)) + return assignment; + } + else +#endif + { + if (!TrioReadString(data, + (flags & FLAGS_IGNORE) + ? NULL + : parameters[i].data.string, + flags, + width)) + return assignment; + } + if (!(flags & FLAGS_IGNORE)) + assignment++; + break; /* FORMAT_STRING */ + + case FORMAT_DOUBLE: + { + trio_pointer_t pointer; + + if (flags & FLAGS_IGNORE) + { + pointer = NULL; + } + else + { + pointer = (flags & FLAGS_LONGDOUBLE) + ? (trio_pointer_t)parameters[i].data.longdoublePointer + : (trio_pointer_t)parameters[i].data.doublePointer; + } + if (!TrioReadDouble(data, pointer, flags, width)) + { + return assignment; + } + if (!(flags & FLAGS_IGNORE)) + { + assignment++; + } + break; /* FORMAT_DOUBLE */ + } + case FORMAT_GROUP: + { + int characterclass[MAX_CHARACTER_CLASS + 1]; + int rc; + + /* Skip over modifiers */ + while (format[index] != SPECIFIER_GROUP) + { + index++; + } + /* Skip over group specifier */ + index++; + + memset(characterclass, 0, sizeof(characterclass)); + rc = TrioGetCharacterClass(format, + &index, + &flags, + characterclass); + if (rc < 0) + return rc; + + if (!TrioReadGroup(data, + (flags & FLAGS_IGNORE) + ? NULL + : parameters[i].data.string, + characterclass, + flags, + parameters[i].width)) + return assignment; + if (!(flags & FLAGS_IGNORE)) + assignment++; + } + break; /* FORMAT_GROUP */ + + case FORMAT_COUNT: + pointer = parameters[i].data.pointer; + if (NULL != pointer) + { + int count = data->committed; + if (ch != EOF) + count--; /* a character is read, but is not consumed yet */ +#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER) + if (flags & FLAGS_SIZE_T) + *(size_t *)pointer = (size_t)count; + else +#endif +#if defined(QUALIFIER_PTRDIFF_T) + if (flags & FLAGS_PTRDIFF_T) + *(ptrdiff_t *)pointer = (ptrdiff_t)count; + else +#endif +#if defined(QUALIFIER_INTMAX_T) + if (flags & FLAGS_INTMAX_T) + *(trio_intmax_t *)pointer = (trio_intmax_t)count; + else +#endif + if (flags & FLAGS_QUAD) + { + *(trio_ulonglong_t *)pointer = (trio_ulonglong_t)count; + } + else if (flags & FLAGS_LONG) + { + *(long int *)pointer = (long int)count; + } + else if (flags & FLAGS_SHORT) + { + *(short int *)pointer = (short int)count; + } + else + { + *(int *)pointer = (int)count; + } + } + break; /* FORMAT_COUNT */ + + case FORMAT_CHAR: +#if TRIO_WIDECHAR + if (flags & FLAGS_WIDECHAR) + { + if (TrioReadWideChar(data, + (flags & FLAGS_IGNORE) + ? NULL + : parameters[i].data.wstring, + flags, + (width == NO_WIDTH) ? 1 : width) == 0) + return assignment; + } + else +#endif + { + if (TrioReadChar(data, + (flags & FLAGS_IGNORE) + ? NULL + : parameters[i].data.string, + flags, + (width == NO_WIDTH) ? 1 : width) == 0) + return assignment; + } + if (!(flags & FLAGS_IGNORE)) + assignment++; + break; /* FORMAT_CHAR */ + + case FORMAT_POINTER: + if (!TrioReadPointer(data, + (flags & FLAGS_IGNORE) + ? NULL + : (trio_pointer_t *)parameters[i].data.pointer, + flags)) + return assignment; + if (!(flags & FLAGS_IGNORE)) + assignment++; + break; /* FORMAT_POINTER */ + + case FORMAT_PARAMETER: + break; /* FORMAT_PARAMETER */ + + default: + return TRIO_ERROR_RETURN(TRIO_EINVAL, index); + } + ch = data->current; + index = parameters[i].indexAfterSpecifier; + i++; + } + else /* Not an % identifier */ + { + if (isspace((int)format[index])) + { + /* Whitespaces may match any amount of whitespaces */ + ch = TrioSkipWhitespaces(data); + } + else if (ch == format[index]) + { + data->InStream(data, &ch); + } + else + return assignment; + + index++; + } + } + return assignment; +} + +/************************************************************************* + * TrioScan + */ +TRIO_PRIVATE int +TrioScan +TRIO_ARGS6((source, sourceSize, InStream, format, arglist, argarray), + trio_pointer_t source, + size_t sourceSize, + void (*InStream) TRIO_PROTO((trio_class_t *, int *)), + TRIO_CONST char *format, + va_list *arglist, + trio_pointer_t *argarray) +{ + int status; + trio_parameter_t parameters[MAX_PARAMETERS]; + trio_class_t data; + + assert(VALID(InStream)); + assert(VALID(format)); + + memset(&data, 0, sizeof(data)); + data.InStream = InStream; + data.location = (trio_pointer_t)source; + data.max = sourceSize; + data.error = 0; + +#if defined(USE_LOCALE) + if (NULL == internalLocaleValues) + { + TrioSetLocale(); + } +#endif + + status = TrioParse(TYPE_SCAN, format, parameters, arglist, argarray); + if (status < 0) + return status; + + status = TrioScanProcess(&data, format, parameters); + if (data.error != 0) + { + status = data.error; + } + return status; +} + +/************************************************************************* + * TrioInStreamFile + */ +TRIO_PRIVATE void +TrioInStreamFile +TRIO_ARGS2((self, intPointer), + trio_class_t *self, + int *intPointer) +{ + FILE *file = (FILE *)self->location; + + assert(VALID(self)); + assert(VALID(file)); + + self->current = fgetc(file); + if (self->current == EOF) + { + self->error = (ferror(file)) + ? TRIO_ERROR_RETURN(TRIO_ERRNO, 0) + : TRIO_ERROR_RETURN(TRIO_EOF, 0); + } + else + { + self->processed++; + self->committed++; + } + + if (VALID(intPointer)) + { + *intPointer = self->current; + } +} + +/************************************************************************* + * TrioInStreamFileDescriptor + */ +TRIO_PRIVATE void +TrioInStreamFileDescriptor +TRIO_ARGS2((self, intPointer), + trio_class_t *self, + int *intPointer) +{ + int fd = *((int *)self->location); + int size; + unsigned char input; + + assert(VALID(self)); + + size = read(fd, &input, sizeof(char)); + if (size == -1) + { + self->error = TRIO_ERROR_RETURN(TRIO_ERRNO, 0); + self->current = EOF; + } + else + { + self->current = (size == 0) ? EOF : input; + } + if (self->current != EOF) + { + self->committed++; + self->processed++; + } + + if (VALID(intPointer)) + { + *intPointer = self->current; + } +} + +/************************************************************************* + * TrioInStreamCustom + */ +TRIO_PRIVATE void +TrioInStreamCustom +TRIO_ARGS2((self, intPointer), + trio_class_t *self, + int *intPointer) +{ + trio_custom_t *data; + + assert(VALID(self)); + assert(VALID(self->location)); + + data = (trio_custom_t *)self->location; + + self->current = (data->stream.in == NULL) + ? NIL + : (data->stream.in)(data->closure); + + if (self->current == NIL) + { + self->current = EOF; + } + else + { + self->processed++; + self->committed++; + } + + if (VALID(intPointer)) + { + *intPointer = self->current; + } +} + +/************************************************************************* + * TrioInStreamString + */ +TRIO_PRIVATE void +TrioInStreamString +TRIO_ARGS2((self, intPointer), + trio_class_t *self, + int *intPointer) +{ + unsigned char **buffer; + + assert(VALID(self)); + assert(VALID(self->location)); + + buffer = (unsigned char **)self->location; + self->current = (*buffer)[0]; + if (self->current == NIL) + { + self->current = EOF; + } + else + { + (*buffer)++; + self->processed++; + self->committed++; + } + + if (VALID(intPointer)) + { + *intPointer = self->current; + } +} + +/************************************************************************* + * + * Formatted scanning functions + * + ************************************************************************/ + +#if defined(TRIO_DOCUMENTATION) +# include "doc/doc_scanf.h" +#endif +/** @addtogroup Scanf + @{ +*/ + +/************************************************************************* + * scanf + */ + +/** + Scan characters from standard input stream. + + @param format Formatting string. + @param ... Arguments. + @return Number of scanned characters. + */ +TRIO_PUBLIC int +trio_scanf +TRIO_VARGS2((format, va_alist), + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioScan((trio_pointer_t)stdin, 0, + TrioInStreamFile, + format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +TRIO_PUBLIC int +trio_vscanf +TRIO_ARGS2((format, args), + TRIO_CONST char *format, + va_list args) +{ + assert(VALID(format)); + + return TrioScan((trio_pointer_t)stdin, 0, + TrioInStreamFile, + format, &args, NULL); +} + +TRIO_PUBLIC int +trio_scanfv +TRIO_ARGS2((format, args), + TRIO_CONST char *format, + trio_pointer_t *args) +{ + assert(VALID(format)); + + return TrioScan((trio_pointer_t)stdin, 0, + TrioInStreamFile, + format, NULL, args); +} + +/************************************************************************* + * fscanf + */ +TRIO_PUBLIC int +trio_fscanf +TRIO_VARGS3((file, format, va_alist), + FILE *file, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(file)); + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioScan((trio_pointer_t)file, 0, + TrioInStreamFile, + format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +TRIO_PUBLIC int +trio_vfscanf +TRIO_ARGS3((file, format, args), + FILE *file, + TRIO_CONST char *format, + va_list args) +{ + assert(VALID(file)); + assert(VALID(format)); + + return TrioScan((trio_pointer_t)file, 0, + TrioInStreamFile, + format, &args, NULL); +} + +TRIO_PUBLIC int +trio_fscanfv +TRIO_ARGS3((file, format, args), + FILE *file, + TRIO_CONST char *format, + trio_pointer_t *args) +{ + assert(VALID(file)); + assert(VALID(format)); + + return TrioScan((trio_pointer_t)file, 0, + TrioInStreamFile, + format, NULL, args); +} + +/************************************************************************* + * dscanf + */ +TRIO_PUBLIC int +trio_dscanf +TRIO_VARGS3((fd, format, va_alist), + int fd, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioScan((trio_pointer_t)&fd, 0, + TrioInStreamFileDescriptor, + format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +TRIO_PUBLIC int +trio_vdscanf +TRIO_ARGS3((fd, format, args), + int fd, + TRIO_CONST char *format, + va_list args) +{ + assert(VALID(format)); + + return TrioScan((trio_pointer_t)&fd, 0, + TrioInStreamFileDescriptor, + format, &args, NULL); +} + +TRIO_PUBLIC int +trio_dscanfv +TRIO_ARGS3((fd, format, args), + int fd, + TRIO_CONST char *format, + trio_pointer_t *args) +{ + assert(VALID(format)); + + return TrioScan((trio_pointer_t)&fd, 0, + TrioInStreamFileDescriptor, + format, NULL, args); +} + +/************************************************************************* + * cscanf + */ +TRIO_PUBLIC int +trio_cscanf +TRIO_VARGS4((stream, closure, format, va_alist), + trio_instream_t stream, + trio_pointer_t closure, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + trio_custom_t data; + + assert(VALID(stream)); + assert(VALID(format)); + + TRIO_VA_START(args, format); + data.stream.in = stream; + data.closure = closure; + status = TrioScan(&data, 0, TrioInStreamCustom, format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +TRIO_PUBLIC int +trio_vcscanf +TRIO_ARGS4((stream, closure, format, args), + trio_instream_t stream, + trio_pointer_t closure, + TRIO_CONST char *format, + va_list args) +{ + trio_custom_t data; + + assert(VALID(stream)); + assert(VALID(format)); + + data.stream.in = stream; + data.closure = closure; + return TrioScan(&data, 0, TrioInStreamCustom, format, &args, NULL); +} + +TRIO_PUBLIC int +trio_cscanfv +TRIO_ARGS4((stream, closure, format, args), + trio_instream_t stream, + trio_pointer_t closure, + TRIO_CONST char *format, + trio_pointer_t *args) +{ + trio_custom_t data; + + assert(VALID(stream)); + assert(VALID(format)); + + data.stream.in = stream; + data.closure = closure; + return TrioScan(&data, 0, TrioInStreamCustom, format, NULL, args); +} + +/************************************************************************* + * sscanf + */ +TRIO_PUBLIC int +trio_sscanf +TRIO_VARGS3((buffer, format, va_alist), + TRIO_CONST char *buffer, + TRIO_CONST char *format, + TRIO_VA_DECL) +{ + int status; + va_list args; + + assert(VALID(buffer)); + assert(VALID(format)); + + TRIO_VA_START(args, format); + status = TrioScan((trio_pointer_t)&buffer, 0, + TrioInStreamString, + format, &args, NULL); + TRIO_VA_END(args); + return status; +} + +TRIO_PUBLIC int +trio_vsscanf +TRIO_ARGS3((buffer, format, args), + TRIO_CONST char *buffer, + TRIO_CONST char *format, + va_list args) +{ + assert(VALID(buffer)); + assert(VALID(format)); + + return TrioScan((trio_pointer_t)&buffer, 0, + TrioInStreamString, + format, &args, NULL); +} + +TRIO_PUBLIC int +trio_sscanfv +TRIO_ARGS3((buffer, format, args), + TRIO_CONST char *buffer, + TRIO_CONST char *format, + trio_pointer_t *args) +{ + assert(VALID(buffer)); + assert(VALID(format)); + + return TrioScan((trio_pointer_t)&buffer, 0, + TrioInStreamString, + format, NULL, args); +} + +/** @} End of Scanf documentation module */ + +/************************************************************************* + * trio_strerror + */ +TRIO_PUBLIC TRIO_CONST char * +trio_strerror +TRIO_ARGS1((errorcode), + int errorcode) +{ + /* Textual versions of the error codes */ + switch (TRIO_ERROR_CODE(errorcode)) + { + case TRIO_EOF: + return "End of file"; + case TRIO_EINVAL: + return "Invalid argument"; + case TRIO_ETOOMANY: + return "Too many arguments"; + case TRIO_EDBLREF: + return "Double reference"; + case TRIO_EGAP: + return "Reference gap"; + case TRIO_ENOMEM: + return "Out of memory"; + case TRIO_ERANGE: + return "Invalid range"; + case TRIO_ECUSTOM: + return "Custom error"; + default: + return "Unknown"; + } +} |