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authorDaniel Veillard <veillard@src.gnome.org>2001-03-27 12:47:33 +0000
committerDaniel Veillard <veillard@src.gnome.org>2001-03-27 12:47:33 +0000
commit92ad210417f318c8f0142fd0aee8d2893d83b8e8 (patch)
tree03308d8014ae764458f3cd79ebfc26211bde14ce /trio.c
parent2be30641d1bc09321889b415cd0f5a2e24c1efb8 (diff)
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Spring cleanup ...: - configure.in Makefile.am config.h.in
Spring cleanup ...: - configure.in Makefile.am config.h.in xmlversion.h.in: detect if we need string functions - trio.[ch] strio.[ch]: embedded the Trio-0.23 string functions to be able to use them where needed. Applied some changes to reduce name linking pollution and compile in only what's needed. - HTMLtree.c debugXML.c entities.c error.c nanoftp.c valid.c xlink.c xmlversion.h.in xpath.c: got rid of the #ifdef for the string manipulation functions - xmlmemory.[ch]: removed DEBUG_MEMORY_FREED and added it automatically to the free() function of xmlmemory.c - entities.c HTMLtree.c parserInternals.c tree.c uri.c valid.c xinclude.c xmlIO.c xpath.c xpointer.c: removed the MEM_CLEANUP usage. Daniel
Diffstat (limited to 'trio.c')
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+/*************************************************************************
+ *
+ * $Id$
+ *
+ * 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.
+ *
+ *************************************************************************
+ *
+ * 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.
+ *
+ ************************************************************************/
+
+/* DV for libxml */
+#include "xmlversion.h"
+#ifdef WITH_TRIO
+#include "config.h"
+/*
+ * DV changes applied
+ * excluded all unused interfaces, renamed them without the trio prefix
+ */
+
+/*
+ * FIXME:
+ * - Scan is probably too permissive about its modifiers.
+ * - Width for floating-point numbers (does it make sense?)
+ * - Add hex-float to TrioReadDouble
+ * - C escapes in %#[] ?
+ * - Multibyte characters (done for format parsing, except scan groups)
+ * - Widechar
+ * - 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'.
+ */
+
+static const char rcsid[] = "@(#)$Id$";
+
+#if defined(__STDC__) && (__STDC_VERSION__ >= 199901L)
+# define TRIO_C99 /* FIXME: C99 support has not been properly tested */
+#endif
+#define TRIO_BSD
+#define TRIO_GNU
+#define TRIO_MISC
+#define TRIO_UNIX98
+#define TRIO_EXTENSION
+#define TRIO_ERRORS
+
+#if defined(unix) || defined(__xlC__) /* AIX xlC workaround */
+# define PLATFORM_UNIX
+#elif defined(AMIGA) && defined(__GNUC__)
+# define PLATFORM_UNIX
+#endif
+
+/*************************************************************************
+ * Include files
+ */
+
+
+#include "trio.h"
+#include "strio.h"
+#include <ctype.h>
+#include <math.h>
+#include <limits.h>
+#include <float.h>
+#include <stdarg.h>
+#include <errno.h>
+#if defined(TRIO_C99)
+# include <stdint.h>
+#endif
+#if defined(PLATFORM_UNIX)
+# include <unistd.h>
+# include <locale.h>
+# define USE_LOCALE
+#endif
+#ifndef DEBUG
+# define NDEBUG
+#endif
+#include <assert.h>
+
+/*************************************************************************
+ * Generic definitions
+ */
+
+#ifndef NULL
+# define NULL 0
+#endif
+#define NIL ((char)0)
+#ifdef __cplusplus
+# undef TRUE
+# undef FALSE
+# define TRUE true
+# define FALSE false
+# define BOOLEAN_T bool
+#else
+# ifndef FALSE
+# define FALSE (1 == 0)
+# define TRUE (! FALSE)
+# endif
+# define BOOLEAN_T int
+#endif
+
+/* mincore() can be used for debugging purposes */
+#define VALID(x) (NULL != (x))
+
+/* Encode the error code and the position. This is decoded
+ * with TRIO_ERROR_CODE and TRIO_ERROR_POSITION.
+ */
+#if defined(TRIO_ERRORS)
+# define TRIO_ERROR_RETURN(x,y) (- ((x) + ((y) << 8)))
+#else
+# define TRIO_ERROR_RETURN(x,y) (-1)
+#endif
+
+/*************************************************************************
+ * Internal definitions
+ */
+
+#if defined(__STDC_ISO_10646__) || defined(MB_LEN_MAX)
+# define USE_MULTIBYTE
+#endif
+
+#if !defined(USE_LONGLONG)
+# if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+# define USE_LONGLONG
+# elif defined(__SUNPRO_C)
+# define USE_LONGLONG
+# elif defined(_LONG_LONG) || defined(_LONGLONG)
+# define USE_LONGLONG
+# endif
+#endif
+
+/* The extra long numbers */
+#if defined(USE_LONGLONG)
+# define LONGLONG long long
+# define ULONGLONG unsigned long long
+#else
+# define LONGLONG long
+# define ULONGLONG unsigned long
+#endif
+
+/* The longest possible integer */
+#if defined(TRIO_C99)
+# define LONGEST uintmax_t
+# define SLONGEST intmax_t
+#else
+# define LONGEST ULONGLONG
+# define SLONGEST LONGLONG
+#endif
+
+/* The maximal number of digits are for base 2 */
+#define MAX_CHARS_IN(x) (sizeof(x) * CHAR_BIT + 1)
+/* The width of a pointer. The number of bits in a hex digit is 4 */
+#define POINTER_WIDTH ((sizeof("0x") - 1) + sizeof(void *) * CHAR_BIT / 4)
+
+/* Infinite and Not-A-Number for floating-point */
+#if defined(HUGE_VAL)
+# define USE_INFINITE
+# if defined(TRIO_C99)
+# define IS_INFINITE(x) isinf(x)
+# else
+# define IS_INFINITE(x) (((x)==HUGE_VAL) ? 1 : (((x)==-HUGE_VAL) ? -1 : 0))
+# endif
+# define INFINITE_LOWER "inf"
+# define INFINITE_UPPER "INF"
+# define LONG_INFINITE_LOWER "infinite"
+# define LONG_INFINITE_UPPER "INFINITE"
+#endif
+#if defined(NAN)
+# define USE_NAN
+# define IS_NAN(x) isnan(x)
+# define NAN_LOWER "nan"
+# define NAN_UPPER "NAN"
+#endif
+
+/* 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_SIZE_PARAMETER = 2 * FLAGS_IGNORE_PARAMETER,
+ /* Reused flags */
+ FLAGS_EXCLUDE = FLAGS_SHORT,
+ /* Compounded flags */
+ FLAGS_ALL_SIZES = FLAGS_LONG | FLAGS_QUAD | FLAGS_INTMAX_T | FLAGS_PTRDIFF_T | FLAGS_SIZE_T,
+
+ NO_POSITION = -1,
+ NO_WIDTH = 0,
+ NO_PRECISION = -1,
+ NO_SIZE = -1,
+
+ 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,
+
+ /* Maximal length of locale separator strings */
+ MAX_LOCALE_SEPARATOR_LENGTH = 64,
+ /* Maximal number of integers in grouping */
+ MAX_LOCALE_GROUPS = 64
+};
+
+#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 defined(TRIO_GNU)
+# define FORMAT_ERRNO 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_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
+ *
+ * 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 defined(TRIO_UNIX98)
+# define SPECIFIER_CHAR_UPPER 'C'
+# define SPECIFIER_STRING_UPPER 'S'
+#endif
+#if defined(TRIO_C99)
+# define SPECIFIER_HEXFLOAT 'a'
+# define SPECIFIER_HEXFLOAT_UPPER 'A'
+#endif
+#if defined(TRIO_GNU)
+# define SPECIFIER_ERRNO 'm'
+#endif
+#if defined(TRIO_EXTENSION)
+# define SPECIFIER_BINARY 'b'
+# define SPECIFIER_BINARY_UPPER 'B'
+#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 '$'
+ *
+ * h Short
+ * Numbers:
+ * (unsigned) short int
+ *
+ * hh Short short
+ * Numbers:
+ * (unsigned) char
+ *
+ * l Long
+ * Numbers:
+ * (unsigned) long int
+ * String:
+ * as the S specifier
+ * Char:
+ * as the C specifier
+ *
+ * ll Long Long
+ * Numbers:
+ * (unsigned) long long int
+ *
+ * L Long Double
+ * Float
+ * long double
+ *
+ * # Alternative
+ * Float:
+ * Decimal-point is always present
+ * String:
+ * non-printable characters are handled as \number
+ *
+ * Spacing
+ *
+ * + Sign
+ *
+ * - Alignment
+ *
+ * . Precision
+ *
+ * * Parameter
+ * print: use parameter
+ * scan: no parameter (ignore)
+ *
+ * q Quad
+ *
+ * Z size_t
+ *
+ * w Widechar
+ *
+ * ' Thousands/quote
+ * Numbers:
+ * Integer part grouped in thousands
+ * Binary numbers:
+ * Number grouped in nibbles (4 bits)
+ * String:
+ * Quoted string
+ *
+ * j intmax_t
+ * t prtdiff_t
+ * z size_t
+ *
+ * ! Sticky
+ * @ Parameter (for both print and scan)
+ *
+ * Extensions:
+ * NB: Some of these have been deprecated.
+ * <alloc> = GNU 'a' qualifier
+ * <base=n> = sets base to 'n' (int)
+ * <fill=c> = fill with 'c' (char)
+ * <quote> = quote string
+ */
+#define QUALIFIER_POSITION '$'
+#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 '^'
+#if defined(TRIO_C99)
+# define QUALIFIER_SIZE_T 'z'
+# define QUALIFIER_PTRDIFF_T 't'
+# define QUALIFIER_INTMAX_T 'j'
+#endif
+#if defined(TRIO_BSD) || defined(TRIO_GNU)
+# define QUALIFIER_QUAD 'q'
+#endif
+#if defined(TRIO_GNU)
+# define QUALIFIER_SIZE_T_UPPER 'Z'
+#endif
+#if defined(TRIO_MISC)
+# define QUALIFIER_WIDECHAR 'w'
+#endif
+#if defined(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_EXTENSIONBEGIN '<'
+# define QUALIFIER_EXTENSIONEND '>'
+# define QUALIFIER_EXTENSIONSEPARATOR ','
+# define QUALIFIER_EXTENSIONVALUE '='
+#endif
+
+/* Internal structure for parameters */
+typedef struct {
+ int type;
+ int flags;
+ int width;
+ size_t precision;
+ int base;
+ int varsize;
+ int indexAfterSpecifier;
+ union {
+ char *string;
+ void *pointer;
+ union {
+ SLONGEST asSigned;
+ LONGEST asUnsigned;
+ } number;
+ double doubleNumber;
+ double *doublePointer;
+ long double longdoubleNumber;
+ long double *longdoublePointer;
+ int errorNumber;
+ } data;
+} parameter_T;
+
+/* Internal structure */
+typedef struct _trio_T {
+ void *location;
+ void (*OutStream)(struct _trio_T *, int);
+ void (*InStream)(struct _trio_T *, int *);
+ /* The number of characters that would have been written/read if
+ * there had been sufficient space.
+ */
+ size_t processed;
+ /* The number of characters that are actually written/read.
+ * Processed and committed with only differ for the *nprintf
+ * and *nscanf functions.
+ */
+ size_t committed;
+ size_t max;
+ unsigned int current;
+} trio_T;
+
+
+/*************************************************************************
+ * Package scope variables
+ */
+
+#if defined(PLATFORM_UNIX)
+extern int errno;
+#endif
+
+#if defined(USE_LOCALE)
+static struct lconv *globalLocaleValues = NULL;
+#endif
+/* UNIX98 says "in a locale where the radix character is not defined,
+ * the radix character defaults to a period (.)"
+ */
+static char globalDecimalPoint[MAX_LOCALE_SEPARATOR_LENGTH] = ".";
+static char globalThousandSeparator[MAX_LOCALE_SEPARATOR_LENGTH] = ",";
+static char globalGrouping[MAX_LOCALE_GROUPS] = { (char)NO_GROUPING };
+
+static const char globalDigitsLower[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+static const char globalDigitsUpper[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+static BOOLEAN_T globalDigitsUnconverted = TRUE;
+static int globalDigitArray[128];
+
+static const char null[] = "(nil)";
+
+static const char extensionFill[] = "fill";
+static const size_t extensionFillSize = sizeof(extensionFill) - 1;
+static const char extensionAlloc[] = "alloc";
+static const size_t extensionAllocSize = sizeof(extensionAlloc) - 1;
+static const char extensionBase[] = "base";
+static const size_t extensionBaseSize = sizeof(extensionBase) - 1;
+static const char extensionQuote[] = "quote";
+static const size_t extensionQuoteSize = sizeof(extensionQuote) - 1;
+
+
+/*************************************************************************
+ * TrioIsQualifier [private]
+ *
+ * Description:
+ * Remember to add all new qualifiers to this function.
+ * QUALIFIER_POSITION must not be added.
+ */
+static BOOLEAN_T
+TrioIsQualifier(const char ch)
+{
+ /* QUALIFIER_POSITION is not included */
+ switch (ch)
+ {
+ 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_EXTENSIONBEGIN)
+ case QUALIFIER_EXTENSIONBEGIN:
+#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
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+/*************************************************************************
+ * TrioSetLocale [private]
+ */
+static void
+TrioSetLocale()
+{
+#if defined(USE_LOCALE)
+ globalLocaleValues = (struct lconv *)localeconv();
+ if (StrLength(globalLocaleValues->decimal_point) > 0)
+ {
+ StrCopyMax(globalDecimalPoint,
+ sizeof(globalDecimalPoint),
+ globalLocaleValues->decimal_point);
+ }
+ if (StrLength(globalLocaleValues->thousands_sep) > 0)
+ {
+ StrCopyMax(globalThousandSeparator,
+ sizeof(globalThousandSeparator),
+ globalLocaleValues->thousands_sep);
+ }
+ if (StrLength(globalLocaleValues->grouping) > 0)
+ {
+ StrCopyMax(globalGrouping,
+ sizeof(globalGrouping),
+ globalLocaleValues->grouping);
+ }
+#endif
+}
+
+/*************************************************************************
+ * TrioGetPosition [private]
+ *
+ * Get the %n$ position.
+ */
+static int
+TrioGetPosition(const char *format, int *indexPointer)
+{
+ char *tmpformat;
+ int number = 0;
+ int index = *indexPointer;
+
+ number = (int)StrToLong(&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;
+ }
+ return NO_POSITION;
+}
+
+/*************************************************************************
+ * TrioPreprocess [private]
+ *
+ * Description:
+ * Parse the format string
+ */
+static int
+TrioPreprocess(int type,
+ const char *format,
+ parameter_T *parameters,
+ va_list arglist)
+{
+#if defined(TRIO_ERRORS)
+ /* Count the number of times a parameter is referenced */
+ unsigned short usedEntries[MAX_PARAMETERS];
+#endif
+ /* Parameter counters */
+ int parameterPosition;
+ int currentParam;
+ int maxParam = -1;
+ BOOLEAN_T insideExtension; /* Are we inside an <> extension? */
+ /* Utility variables */
+ int 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 got_sticky = 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;
+ int charlen;
+ int i = -1;
+ int num;
+ int work;
+ char *tmpformat;
+
+
+#if defined(TRIO_ERRORS)
+ /* The 'parameters' array is not initialized, but we need to
+ * know which entries we have used.
+ */
+ memset(usedEntries, 0, sizeof(usedEntries));
+#endif
+
+ index = 0;
+ parameterPosition = 0;
+#if defined(USE_MULTIBYTE)
+ mblen(NULL, 0);
+#endif
+
+ while (format[index])
+ {
+#if defined(USE_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
+ if (CHAR_IDENTIFIER == format[index++])
+ {
+ if (CHAR_IDENTIFIER == format[index])
+ {
+ index++;
+ continue; /* while */
+ }
+
+ flags = FLAGS_NEW;
+ insideExtension = FALSE;
+ 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])
+ || insideExtension)
+ {
+ ch = format[index++];
+
+#if defined(TRIO_EXTENSION)
+ if (insideExtension)
+ {
+ if (QUALIFIER_EXTENSIONSEPARATOR == ch)
+ {
+ ch = QUALIFIER_EXTENSIONBEGIN;
+ }
+ else
+ {
+ insideExtension = FALSE;
+ }
+ }
+ if (QUALIFIER_EXTENSIONBEGIN == ch)
+ {
+ /* Parse extended format */
+ insideExtension = TRUE;
+ work = index;
+
+ switch (format[work])
+ {
+ case 'a':
+ /* <alloc> */
+ if (StrEqualMax(extensionAlloc, extensionAllocSize,
+ &format[work]))
+ {
+ flags |= FLAGS_ALLOC;
+ work += extensionAllocSize;
+ }
+ break;
+
+ case 'b':
+ /* <base=c> */
+ if (StrEqualMax(extensionBase, extensionBaseSize,
+ &format[work]))
+ {
+ work += extensionBaseSize;
+ if (QUALIFIER_EXTENSIONVALUE == format[work])
+ {
+ work++;
+ base = StrToLong(&format[work], &tmpformat, BASE_DECIMAL);
+ work += (int)(tmpformat - &format[work]);
+ if ((base < MIN_BASE) || (base > MAX_BASE))
+ return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
+ }
+ }
+ break;
+
+#if 0
+ /* Deprecated */
+ case 'f':
+ if (StrEqualMax(extensionFill, extensionFillSize,
+ &format[work]))
+ {
+ work += extensionFillSize;
+ if (QUALIFIER_EXTENSIONVALUE == format[work])
+ {
+ work++;
+ adjust = format[work++];
+ }
+ }
+#endif
+ case 'q':
+ /* <quote> */
+ if (StrEqualMax(extensionQuote, extensionQuoteSize,
+ &format[work]))
+ {
+ flags |= FLAGS_QUOTE;
+ work += extensionQuoteSize;
+#if 0
+ /* Deprecated */
+ if (QUALIFIER_EXTENSIONVALUE == format[work])
+ {
+ work++;
+ quote = format[work++];
+ }
+#endif
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ if (QUALIFIER_EXTENSIONEND == work[format])
+ {
+ insideExtension = FALSE;
+ index = ++work;
+ }
+ }
+#endif /* defined(TRIO_EXTENSION) */
+
+ switch (ch)
+ {
+#if defined(TRIO_EXTENSION)
+ case QUALIFIER_EXTENSIONBEGIN:
+ case QUALIFIER_EXTENSIONSEPARATOR:
+ /* Everything is fine, but ignore */
+ break;
+#endif
+ 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]) ||
+ (QUALIFIER_PARAM == format[index]))
+ {
+ 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 = StrToLong(&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]) ||
+ (QUALIFIER_PARAM == format[index]))
+ {
+ 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 = StrToLong(&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 */
+
+ case QUALIFIER_PARAM:
+ type = TYPE_PRINT;
+ /* FALLTHROUGH */
+ 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 = StrToLong(&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(ULONGLONG))
+ 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(ULONGLONG))
+ 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(intmax_t) == sizeof(ULONGLONG))
+ flags |= FLAGS_QUAD;
+ else if (sizeof(intmax_t) == sizeof(long))
+ flags |= FLAGS_LONG;
+ break;
+#endif
+
+#if defined(QUALIFIER_QUAD)
+ case QUALIFIER_QUAD:
+ flags |= FLAGS_QUAD;
+ 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;
+ got_sticky = TRUE;
+ break;
+#endif
+
+#if defined(QUALIFIER_VARSIZE)
+ case QUALIFIER_VARSIZE:
+ flags |= FLAGS_SIZE_PARAMETER;
+ parameterPosition++;
+ if (positional)
+ varsize = parameterPosition;
+ else
+ {
+ varsize = currentParam;
+ currentParam = varsize + 1;
+ }
+ if (currentParam > maxParam)
+ maxParam = currentParam;
+ 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)
+ {
+#if defined(TRIO_ERRORS)
+ usedEntries[width] += 1;
+#endif
+ parameters[pos].type = FORMAT_PARAMETER;
+ indices[width] = pos;
+ width = pos++;
+ }
+ if (flags & FLAGS_PRECISION_PARAMETER)
+ {
+#if defined(TRIO_ERRORS)
+ usedEntries[precision] += 1;
+#endif
+ parameters[pos].type = FORMAT_PARAMETER;
+ indices[precision] = pos;
+ precision = pos++;
+ }
+ if (flags & FLAGS_BASE_PARAMETER)
+ {
+#if defined(TRIO_ERRORS)
+ usedEntries[base] += 1;
+#endif
+ parameters[pos].type = FORMAT_PARAMETER;
+ indices[base] = pos;
+ base = pos++;
+ }
+ if (flags & FLAGS_SIZE_PARAMETER)
+ {
+#if defined(TRIO_ERRORS)
+ usedEntries[varsize] += 1;
+#endif
+ parameters[pos].type = FORMAT_PARAMETER;
+ indices[varsize] = pos;
+ varsize = pos++;
+ }
+
+ indices[currentParam] = pos;
+
+ switch (format[index++])
+ {
+#if defined(SPECIFIER_CHAR_UPPER)
+ case SPECIFIER_CHAR_UPPER:
+ flags |= FLAGS_LONG;
+ /* FALLTHROUGH */
+#endif
+ case SPECIFIER_CHAR:
+ parameters[pos].type = FORMAT_CHAR;
+ break;
+
+#if defined(SPECIFIER_STRING_UPPER)
+ case SPECIFIER_STRING_UPPER:
+ flags |= FLAGS_LONG;
+ /* FALLTHROUGH */
+#endif
+ case SPECIFIER_STRING:
+ parameters[pos].type = FORMAT_STRING;
+ break;
+
+ case SPECIFIER_GROUP:
+ if (TYPE_SCAN == type)
+ {
+ parameters[pos].type = FORMAT_GROUP;
+ while (format[index])
+ {
+ if (format[index++] == SPECIFIER_UNGROUP)
+ break; /* while */
+ }
+ }
+ 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:
+ 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
+
+ default:
+ /* Bail out completely to make the error more obvious */
+ return TRIO_ERROR_RETURN(TRIO_EINVAL, index);
+ }
+
+#if defined(TRIO_ERRORS)
+ /* Count the number of times this entry has been used */
+ usedEntries[currentParam] += 1;
+#endif
+
+ /* Find last sticky parameters */
+ if (got_sticky && !(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 & ~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 defined(TRIO_ERRORS)
+ 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);
+ }
+#endif
+
+ 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:
+ parameters[i].data.string = va_arg(arglist, char *);
+ break;
+
+ case FORMAT_POINTER:
+ case FORMAT_COUNT:
+ case FORMAT_UNKNOWN:
+ parameters[i].data.pointer = va_arg(arglist, void *);
+ break;
+
+ case FORMAT_CHAR:
+ case FORMAT_INT:
+ if (TYPE_SCAN == type)
+ {
+ parameters[i].data.pointer = (LONGEST *)va_arg(arglist, void *);
+ }
+ else
+ {
+#if defined(QUALIFIER_VARSIZE)
+ if (parameters[i].flags & FLAGS_SIZE_PARAMETER)
+ {
+ /* Variable sizes are mapped onto the fixed sizes,
+ * in accordance with integer promotion.
+ */
+ parameters[i].flags &= ~FLAGS_ALL_SIZES;
+ varsize = (int)parameters[parameters[i].varsize].data.number.asUnsigned;
+ 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(LONGLONG))
+ parameters[i].flags |= FLAGS_QUAD;
+ else
+ parameters[i].flags |= FLAGS_INTMAX_T;
+#else
+ else
+ parameters[i].flags |= FLAGS_QUAD;
+#endif
+ }
+#endif
+#if defined(QUALIFIER_SIZE_T) || defined(QUALIFIER_SIZE_T_UPPER)
+ if (parameters[i].flags & FLAGS_SIZE_T)
+ parameters[i].data.number.asUnsigned = (LONGEST)va_arg(arglist, size_t);
+ else
+#endif
+#if defined(QUALIFIER_PTRDIFF_T)
+ if (parameters[i].flags & FLAGS_PTRDIFF_T)
+ parameters[i].data.number.asUnsigned = (LONGEST)va_arg(arglist, ptrdiff_t);
+ else
+#endif
+#if defined(QUALIFIER_INTMAX_T)
+ if (parameters[i].flags & FLAGS_INTMAX_T)
+ parameters[i].data.number.asUnsigned = (LONGEST)va_arg(arglist, intmax_t);
+ else
+#endif
+ if (parameters[i].flags & FLAGS_QUAD)
+ parameters[i].data.number.asUnsigned = (LONGEST)va_arg(arglist, ULONGLONG);
+ else if (parameters[i].flags & FLAGS_LONG)
+ parameters[i].data.number.asUnsigned = (LONGEST)va_arg(arglist, long);
+ else
+ parameters[i].data.number.asUnsigned = (LONGEST)va_arg(arglist, int);
+ }
+ break;
+
+ case FORMAT_PARAMETER:
+ parameters[i].data.number.asUnsigned = (LONGEST)va_arg(arglist, int);
+ break;
+
+ case FORMAT_DOUBLE:
+ if (TYPE_SCAN == type)
+ {
+ if (parameters[i].flags & FLAGS_LONG)
+ parameters[i].data.longdoublePointer = va_arg(arglist, long double *);
+ else
+ parameters[i].data.doublePointer = va_arg(arglist, double *);
+ }
+ else
+ {
+ if (parameters[i].flags & FLAGS_LONG)
+ parameters[i].data.longdoubleNumber = va_arg(arglist, long double);
+ else
+ parameters[i].data.longdoubleNumber = (long double)va_arg(arglist, double);
+ }
+ break;
+
+#if defined(FORMAT_ERRNO)
+ case FORMAT_ERRNO:
+ parameters[i].data.errorNumber = errno;
+ break;
+#endif
+
+ default:
+ break;
+ }
+ } /* for all specifiers */
+ return num;
+}
+
+
+/*************************************************************************
+ *
+ * FORMATTING
+ *
+ ************************************************************************/
+
+
+/*************************************************************************
+ * TrioWriteNumber [private]
+ *
+ * Description:
+ * Output a number.
+ * The complexity of this function is a result of the complexity
+ * of the dependencies of the flags.
+ */
+static void
+TrioWriteNumber(trio_T *self,
+ LONGEST number,
+ int flags,
+ int width,
+ int precision,
+ int base)
+{
+ BOOLEAN_T isNegative;
+ char buffer[MAX_CHARS_IN(LONGEST)
+ * MAX_LOCALE_SEPARATOR_LENGTH
+ * MAX_LOCALE_GROUPS];
+ char *bufferend;
+ char *pointer;
+ const char *digits;
+ int i;
+ int length;
+ char *p;
+ int charsPerThousand;
+ int groupingIndex;
+ int count;
+
+ assert(VALID(self));
+ assert(VALID(self->OutStream));
+ assert((base >= MIN_BASE && base <= MAX_BASE) || (base == NO_BASE));
+
+ digits = (flags & FLAGS_UPPER) ? globalDigitsUpper : globalDigitsLower;
+
+ if (flags & FLAGS_UNSIGNED)
+ isNegative = FALSE;
+ else if ((isNegative = (((SLONGEST)number) < 0)))
+ number = -number;
+
+ if (flags & FLAGS_QUAD)
+ number &= (ULONGLONG)-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;
+ charsPerThousand = (int)globalGrouping[0];
+ groupingIndex = 1;
+ for (i = 1; i < (int)sizeof(buffer); i++)
+ {
+ *pointer-- = digits[number % base];
+ number /= base;
+ if (number == 0)
+ break;
+
+ if ((flags & FLAGS_QUOTE)
+ && (charsPerThousand != NO_GROUPING)
+ && (i % charsPerThousand == 0))
+ {
+ /*
+ * We are building the number from the least significant
+ * to the most significant digit, so we have to copy the
+ * thousand separator backwards
+ */
+ length = StrLength(globalThousandSeparator);
+ if (((int)(pointer - buffer) - length) > 0)
+ {
+ p = &globalThousandSeparator[length - 1];
+ while (length-- > 0)
+ *pointer-- = *p--;
+ }
+
+ /* Advance to next grouping number */
+ switch (globalGrouping[groupingIndex])
+ {
+ case CHAR_MAX: /* Disable grouping */
+ charsPerThousand = NO_GROUPING;
+ break;
+ case 0: /* Repeat last group */
+ break;
+ default:
+ charsPerThousand = (int)globalGrouping[groupingIndex++];
+ break;
+ }
+ }
+ }
+
+ /* 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);
+ }
+}
+
+/*************************************************************************
+ * TrioWriteString [private]
+ *
+ * Description:
+ * Output a string
+ */
+static void
+TrioWriteString(trio_T *self,
+ const char *string,
+ int flags,
+ int width,
+ int precision)
+{
+ int length;
+ int ch;
+
+ assert(VALID(self));
+ assert(VALID(self->OutStream));
+
+ if (string == NULL)
+ {
+ string = null;
+ length = sizeof(null) - 1;
+ /* Disable quoting for the null pointer */
+ flags &= (~FLAGS_QUOTE);
+ width = 0;
+ }
+ else
+ {
+ length = StrLength(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 = (unsigned char)(*string++);
+ if (flags & FLAGS_ALTERNATIVE)
+ {
+ if (! (isprint(ch) || isspace(ch)))
+ {
+ /* Non-printable characters are converted to C escapes or
+ * \number, if no C escape exists.
+ */
+ self->OutStream(self, CHAR_BACKSLASH);
+ switch (ch)
+ {
+ case '\a': /* alert */
+ self->OutStream(self, 'a');
+ break;
+ case '\b': /* backspace */
+ self->OutStream(self, 'b');
+ break;
+ case '\f': /* formfeed */
+ self->OutStream(self, 'f');
+ break;
+ case '\n': /* newline */
+ self->OutStream(self, 'n');
+ break;
+ case '\r': /* carriage return */
+ self->OutStream(self, 'r');
+ break;
+ case '\t': /* horizontal tab */
+ self->OutStream(self, 't');
+ break;
+ case '\v': /* vertical tab */
+ self->OutStream(self, 'v');
+ break;
+ case '\\': /* backslash */
+ self->OutStream(self, '\\');
+ break;
+ default: /* the rest */
+ self->OutStream(self, 'x');
+ TrioWriteNumber(self, (ULONGLONG)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);
+ }
+ }
+
+ if (flags & FLAGS_LEFTADJUST)
+ {
+ while (width-- > 0)
+ self->OutStream(self, CHAR_ADJUST);
+ }
+ if (flags & FLAGS_QUOTE)
+ self->OutStream(self, CHAR_QUOTE);
+}
+
+/*************************************************************************
+ * TrioWriteDouble [private]
+ */
+static void
+TrioWriteDouble(trio_T *self,
+ long double longdoubleNumber,
+ int flags,
+ int width,
+ int precision,
+ int base)
+{
+ int charsPerThousand;
+ int length;
+ double number;
+ double precisionPower;
+ double workNumber;
+ int integerDigits;
+ int fractionDigits;
+ int exponentDigits;
+ int visibleDigits;
+ int expectedWidth;
+ int exponent;
+ unsigned int uExponent;
+ double dblBase;
+ BOOLEAN_T isNegative;
+ BOOLEAN_T isExponentNegative = FALSE;
+ BOOLEAN_T isHex;
+ const char *digits;
+ char numberBuffer[MAX_CHARS_IN(double)
+ * MAX_LOCALE_SEPARATOR_LENGTH
+ * MAX_LOCALE_GROUPS];
+ char *numberPointer;
+ char exponentBuffer[MAX_CHARS_IN(double)];
+ char *exponentPointer;
+ int groupingIndex;
+ char *work;
+ int i;
+ BOOLEAN_T onlyzero;
+
+ assert(VALID(self));
+ assert(VALID(self->OutStream));
+ assert(base == BASE_DECIMAL || base == BASE_HEX);
+
+ number = (double)longdoubleNumber;
+
+#if defined(USE_INFINITE)
+ /* Handle infinite numbers and non-a-number first */
+ switch (IS_INFINITE(number))
+ {
+ case 1:
+ TrioWriteString(self,
+ (flags & FLAGS_UPPER)
+ ? INFINITE_UPPER
+ : INFINITE_LOWER,
+ flags, width, precision);
+ return;
+
+ case -1:
+ TrioWriteString(self,
+ (flags & FLAGS_UPPER)
+ ? "-" INFINITE_UPPER
+ : "-" INFINITE_LOWER,
+ flags, width, precision);
+ return;
+
+ default:
+ break;
+ }
+#endif
+#if defined(USE_NAN)
+ if (IS_NAN(number))
+ {
+ TrioWriteString(self,
+ (flags & FLAGS_UPPER)
+ ? NAN_UPPER
+ : NAN_LOWER,
+ 0, 0, 0, 0, 0);
+ return;
+ }
+#endif
+
+ /* Normal numbers */
+ digits = (flags & FLAGS_UPPER) ? globalDigitsUpper : globalDigitsLower;
+ isHex = (base == BASE_HEX);
+ dblBase = (double)base;
+
+ if (precision == NO_PRECISION)
+ precision = FLT_DIG;
+ precisionPower = pow(10.0, (double)precision);
+
+ isNegative = (number < 0.0);
+ if (isNegative)
+ number = -number;
+
+ if ((flags & FLAGS_FLOAT_G) || isHex)
+ {
+ if ((number < 1.0e-4) || (number > precisionPower))
+ flags |= FLAGS_FLOAT_E;
+#if defined(TRIO_UNIX98)
+ if (precision == 0)
+ precision = 1;
+#endif
+ }
+
+ if (flags & FLAGS_FLOAT_E)
+ {
+ /* Scale the number */
+ workNumber = log10(number);
+ if (workNumber == -HUGE_VAL)
+ {
+ exponent = 0;
+ /* Undo setting */
+ if (flags & FLAGS_FLOAT_G)
+ flags &= ~FLAGS_FLOAT_E;
+ }
+ else
+ {
+ exponent = (int)floor(workNumber);
+ number /= pow(10.0, (double)exponent);
+ isExponentNegative = (exponent < 0);
+ uExponent = (isExponentNegative) ? -exponent : exponent;
+ /* No thousand separators */
+ flags &= ~FLAGS_QUOTE;
+ }
+ }
+
+ /*
+ * Truncated number.
+ *
+ * precision is number of significant digits for FLOAT_G
+ * and number of fractional digits for others
+ */
+ integerDigits = (number > DBL_EPSILON)
+ ? 1 + (int)log10(floor(number))
+ : 1;
+ fractionDigits = (flags & FLAGS_FLOAT_G)
+ ? precision - integerDigits
+ : precision;
+ number = floor(0.5 + number * pow(10.0, (double)fractionDigits));
+ if ((int)log10(number) + 1 > integerDigits + fractionDigits)
+ {
+ /* Adjust if number was rounded up one digit (ie. 99 to 100) */
+ integerDigits++;
+ }
+ visibleDigits = integerDigits + fractionDigits;
+
+ /* Build the fraction part */
+ numberPointer = &numberBuffer[sizeof(numberBuffer) - 1];
+ *numberPointer = NIL;
+ onlyzero = TRUE;
+ for (i = 0; i < fractionDigits; i++)
+ {
+ *(--numberPointer) = digits[(int)fmod(number, dblBase)];
+ number = floor(number / dblBase);
+
+ /* Prune trailing zeroes */
+ if (numberPointer[0] != digits[0])
+ onlyzero = FALSE;
+ else if (onlyzero && (numberPointer[0] == digits[0]))
+ numberPointer++;
+ }
+
+ /* Insert decimal point */
+ if ((flags & FLAGS_ALTERNATIVE) || ((fractionDigits > 0) && !onlyzero))
+ {
+ i = StrLength(globalDecimalPoint);
+ while (i> 0)
+ {
+ *(--numberPointer) = globalDecimalPoint[--i];
+ }
+ }
+ /* Insert the integer part and thousand separators */
+ charsPerThousand = (int)globalGrouping[0];
+ groupingIndex = 1;
+ for (i = 1; i < integerDigits + 1; i++)
+ {
+ *(--numberPointer) = digits[(int)fmod(number, dblBase)];
+ number = floor(number / dblBase);
+ if (number < DBL_EPSILON)
+ break;
+
+ if ((i > 0)
+ && ((flags & (FLAGS_FLOAT_E | FLAGS_QUOTE)) == FLAGS_QUOTE)
+ && (charsPerThousand != NO_GROUPING)
+ && (i % charsPerThousand == 0))
+ {
+ /*
+ * We are building the number from the least significant
+ * to the most significant digit, so we have to copy the
+ * thousand separator backwards
+ */
+ length = StrLength(globalThousandSeparator);
+ integerDigits += length;
+ if (((int)(numberPointer - numberBuffer) - length) > 0)
+ {
+ work = &globalThousandSeparator[length - 1];
+ while (length-- > 0)
+ *(--numberPointer) = *work--;
+ }
+
+ /* Advance to next grouping number */
+ if (charsPerThousand != NO_GROUPING)
+ {
+ switch (globalGrouping[groupingIndex])
+ {
+ case CHAR_MAX: /* Disable grouping */
+ charsPerThousand = NO_GROUPING;
+ break;
+ case 0: /* Repeat last group */
+ break;
+ default:
+ charsPerThousand = (int)globalGrouping[groupingIndex++];
+ break;
+ }
+ }
+ }
+ }
+
+ /* Build the exponent */
+ exponentDigits = 0;
+ if (flags & FLAGS_FLOAT_E)
+ {
+ exponentPointer = &exponentBuffer[sizeof(exponentBuffer) - 1];
+ *exponentPointer-- = NIL;
+ do {
+ *exponentPointer-- = digits[uExponent % base];
+ uExponent /= base;
+ exponentDigits++;
+ } while (uExponent);
+ }
+
+ /* Calculate expected width.
+ * sign + integer part + thousands separators + decimal point
+ * + fraction + exponent
+ */
+ expectedWidth = StrLength(numberPointer);
+ if (isNegative || (flags & FLAGS_SHOWSIGN))
+ expectedWidth += sizeof("-") - 1;
+ if (exponentDigits > 0)
+ expectedWidth += exponentDigits + sizeof("E+") - 1;
+ if (isExponentNegative)
+ expectedWidth += sizeof('-') - 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, '+');
+ 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, '+');
+ if (isHex)
+ {
+ self->OutStream(self, '0');
+ self->OutStream(self, (flags & FLAGS_UPPER) ? 'X' : 'x');
+ }
+ }
+ /* Output number */
+ for (i = 0; numberPointer[i]; i++)
+ {
+ self->OutStream(self, numberPointer[i]);
+ }
+ /* Output exponent */
+ if (exponentDigits > 0)
+ {
+ self->OutStream(self,
+ isHex
+ ? ((flags & FLAGS_UPPER) ? 'P' : 'p')
+ : ((flags & FLAGS_UPPER) ? 'E' : 'e'));
+ self->OutStream(self, (isExponentNegative) ? '-' : '+');
+ for (i = 0; i < exponentDigits; i++)
+ {
+ self->OutStream(self, exponentPointer[i + 1]);
+ }
+ }
+ /* Output trailing spaces */
+ if (flags & FLAGS_LEFTADJUST)
+ {
+ for (i = expectedWidth; i < width; i++)
+ {
+ self->OutStream(self, CHAR_ADJUST);
+ }
+ }
+}
+
+/*************************************************************************
+ * TrioFormat [private]
+ *
+ * Description:
+ * This is the main engine for formatting output
+ */
+static int
+TrioFormat(void *destination,
+ size_t destinationSize,
+ void (*OutStream)(trio_T *, int),
+ const char *format,
+ va_list args)
+{
+#if defined(USE_MULTIBYTE)
+ int charlen;
+#endif
+ int status;
+ parameter_T parameters[MAX_PARAMETERS];
+ trio_T internalData;
+ trio_T *data;
+ int i;
+ const char *string;
+ void *pointer;
+ int flags;
+ int width;
+ int precision;
+ int base;
+ int index;
+ ULONGLONG number;
+
+ assert(VALID(OutStream));
+ assert(VALID(format));
+ assert(VALID(args));
+
+ /* memset(&parameters, 0, sizeof(parameters)); */
+ memset(&internalData, 0, sizeof(internalData));
+ data = &internalData;
+ data->OutStream = OutStream;
+ data->location = destination;
+ data->max = destinationSize;
+
+#if defined(USE_LOCALE)
+ if (NULL == globalLocaleValues)
+ {
+ TrioSetLocale();
+ }
+#endif
+
+ status = TrioPreprocess(TYPE_PRINT, format, parameters, args);
+ if (status < 0)
+ return status;
+
+ index = 0;
+ i = 0;
+#if defined(USE_MULTIBYTE)
+ mblen(NULL, 0);
+#endif
+
+ while (format[index])
+ {
+#if defined(USE_MULTIBYTE)
+ if (! isascii(format[index]))
+ {
+ charlen = mblen(&format[index], MB_LEN_MAX);
+ while (charlen-- > 0)
+ {
+ OutStream(data, format[index++]);
+ }
+ continue; /* while */
+ }
+#endif
+ if (CHAR_IDENTIFIER == format[index])
+ {
+ if (CHAR_IDENTIFIER == format[index + 1])
+ {
+ 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.asSigned;
+ }
+
+ /* 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.asSigned;
+ }
+ }
+ 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.asSigned;
+ }
+
+ switch (parameters[i].type)
+ {
+ case FORMAT_CHAR:
+ if (flags & FLAGS_QUOTE)
+ OutStream(data, CHAR_QUOTE);
+ if (! (flags & FLAGS_LEFTADJUST))
+ {
+ while (--width > 0)
+ OutStream(data, CHAR_ADJUST);
+ }
+
+ OutStream(data, (char)parameters[i].data.number.asSigned);
+
+ if (flags & FLAGS_LEFTADJUST)
+ {
+ while(--width > 0)
+ OutStream(data, CHAR_ADJUST);
+ }
+ if (flags & FLAGS_QUOTE)
+ OutStream(data, CHAR_QUOTE);
+
+ break; /* FORMAT_CHAR */
+
+ case FORMAT_INT:
+ if (base == NO_BASE)
+ base = BASE_DECIMAL;
+
+ TrioWriteNumber(data,
+ parameters[i].data.number.asUnsigned,
+ 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:
+ TrioWriteString(data,
+ parameters[i].data.string,
+ flags,
+ width,
+ precision);
+ break; /* FORMAT_STRING */
+
+ case FORMAT_POINTER:
+ pointer = parameters[i].data.pointer;
+ if (NULL == pointer)
+ {
+ string = null;
+ while (*string)
+ OutStream(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
+ * optimising compiler). The (char *) casting is done
+ * to please ANSI C++.
+ */
+ number = (ULONGLONG)((char *)parameters[i].data.pointer
+ - (char *)0);
+ /* Shrink to size of pointer */
+ number &= (ULONGLONG)-1;
+ flags |= (FLAGS_UNSIGNED | FLAGS_ALTERNATIVE |
+ FLAGS_NILPADDING);
+ TrioWriteNumber(data,
+ number,
+ flags,
+ POINTER_WIDTH,
+ precision,
+ BASE_HEX);
+ }
+ 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)
+ *(intmax_t *)pointer = (intmax_t)data->committed;
+ else
+#endif
+ if (flags & FLAGS_QUAD)
+ {
+ *(ULONGLONG int *)pointer = (ULONGLONG)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 = StrError(parameters[i].data.errorNumber);
+ if (string)
+ {
+ TrioWriteString(data,
+ string,
+ flags,
+ width,
+ precision);
+ }
+ else
+ {
+ OutStream(data, '#');
+ TrioWriteNumber(data,
+ (LONGEST)parameters[i].data.errorNumber,
+ flags,
+ width,
+ precision,
+ BASE_DECIMAL);
+ }
+ break; /* FORMAT_ERRNO */
+#endif
+
+ default:
+ break;
+ } /* switch parameter type */
+
+ /* Prepare for next */
+ index = parameters[i].indexAfterSpecifier;
+ i++;
+ }
+ }
+ else /* not identifier */
+ {
+ OutStream(data, format[index++]);
+ }
+ }
+
+ return data->processed;
+}
+
+/*************************************************************************
+ * TrioOutStreamFile [private]
+ */
+static void
+TrioOutStreamFile(trio_T *self, int output)
+{
+ FILE *file = (FILE *)self->location;
+
+ assert(VALID(self));
+ assert(VALID(file));
+
+ self->processed++;
+ self->committed++;
+ (void)fputc(output, file);
+}
+
+/*************************************************************************
+ * TrioOutStreamFileDescriptor [private]
+ */
+static void
+TrioOutStreamFileDescriptor(trio_T *self, int output)
+{
+ int fd = *((int *)self->location);
+ char ch;
+
+ assert(VALID(self));
+
+ ch = (char)output;
+ (void)write(fd, &ch, sizeof(char));
+ self->processed++;
+ self->committed++;
+}
+
+/*************************************************************************
+ * TrioOutStreamString [private]
+ */
+static void
+TrioOutStreamString(trio_T *self, int output)
+{
+ char **buffer = (char **)self->location;
+
+ assert(VALID(self));
+ assert(VALID(buffer));
+
+ **buffer = (char)output;
+ (*buffer)++;
+ self->processed++;
+ self->committed++;
+}
+
+/*************************************************************************
+ * TrioOutStreamStringMax [private]
+ */
+static void
+TrioOutStreamStringMax(trio_T *self, int output)
+{
+ char **buffer;
+
+ assert(VALID(self));
+ buffer = (char **)self->location;
+ assert(VALID(buffer));
+
+ if (self->processed < self->max)
+ {
+ **buffer = (char)output;
+ (*buffer)++;
+ self->committed++;
+ }
+ self->processed++;
+}
+
+/*************************************************************************
+ * TrioOutStreamStringDynamic [private]
+ */
+#define DYNAMIC_START_SIZE 32
+struct dynamicBuffer {
+ char *buffer;
+ size_t length;
+ size_t allocated;
+};
+
+static void
+TrioOutStreamStringDynamic(trio_T *self, int output)
+{
+ struct dynamicBuffer *infop;
+
+ assert(VALID(self));
+ assert(VALID(self->location));
+
+ infop = (struct dynamicBuffer *)self->location;
+
+ if (infop->buffer == NULL)
+ {
+ /* Start with a reasonable size */
+ infop->buffer = (char *)malloc(DYNAMIC_START_SIZE);
+ if (infop->buffer == NULL)
+ return; /* fail */
+
+ infop->allocated = DYNAMIC_START_SIZE;
+ self->processed = 0;
+ self->committed = 0;
+ }
+ else if (self->committed + sizeof(NIL) >= infop->allocated)
+ {
+ char *newptr;
+
+ /* Allocate increasing chunks */
+ newptr = (char *)realloc(infop->buffer, infop->allocated * 2);
+
+ if (newptr == NULL)
+ return;
+
+ infop->buffer = newptr;
+ infop->allocated *= 2;
+ }
+
+ infop->buffer[self->committed] = output;
+ self->committed++;
+ self->processed++;
+
+ infop->length = self->committed;
+}
+
+#ifndef HAVE_PRINTF
+/*************************************************************************
+ * trio_printf
+ */
+int
+printf(const char *format, ...)
+{
+ int status;
+ va_list args;
+
+ assert(VALID(format));
+
+ va_start(args, format);
+ status = TrioFormat(stdout, 0, TrioOutStreamFile, format, args);
+ va_end(args);
+ return status;
+}
+#endif
+
+#ifndef HAVE_FPRINTF
+/*************************************************************************
+ * trio_fprintf
+ */
+int
+fprintf(FILE *file, const char *format, ...)
+{
+ int status;
+ va_list args;
+
+ assert(VALID(file));
+ assert(VALID(format));
+
+ va_start(args, format);
+ status = TrioFormat(file, 0, TrioOutStreamFile, format, args);
+ va_end(args);
+ return status;
+}
+#endif
+
+#ifndef HAVE_VFPRINTF
+/*************************************************************************
+ * trio_vfprintf
+ */
+int
+vfprintf(FILE *file, const char *format, va_list args)
+{
+ assert(VALID(file));
+ assert(VALID(format));
+ assert(VALID(args));
+
+ return TrioFormat(file, 0, TrioOutStreamFile, format, args);
+}
+#endif
+
+#ifndef HAVE_SPRINTF
+/*************************************************************************
+ * trio_sprintf
+ */
+int
+sprintf(char *buffer, const char *format, ...)
+{
+ int status;
+ va_list args;
+
+ assert(VALID(buffer));
+ assert(VALID(format));
+
+ va_start(args, format);
+ status = TrioFormat(&buffer, 0, TrioOutStreamString, format, args);
+ *buffer = NIL; /* Terminate with NIL character */
+ va_end(args);
+ return status;
+}
+#endif
+
+#ifndef HAVE_VSPRINTF
+/*************************************************************************
+ * trio_vsprintf
+ */
+int
+vsprintf(char *buffer, const char *format, va_list args)
+{
+ int status;
+
+ assert(VALID(buffer));
+ assert(VALID(format));
+ assert(VALID(args));
+
+ status = TrioFormat(&buffer, 0, TrioOutStreamString, format, args);
+ *buffer = NIL;
+ return status;
+}
+#endif
+
+#ifndef HAVE_SNPRINTF
+/*************************************************************************
+ * trio_snprintf
+ */
+int
+snprintf(char *buffer, size_t bufferSize, const char *format, ...)
+{
+ int status;
+ va_list args;
+
+ assert(VALID(buffer));
+ assert(VALID(format));
+
+ va_start(args, format);
+ status = TrioFormat(&buffer, bufferSize > 0 ? bufferSize - 1 : 0,
+ TrioOutStreamStringMax, format, args);
+ if (bufferSize > 0)
+ *buffer = NIL;
+ va_end(args);
+ return status;
+}
+#endif
+
+#ifndef HAVE_VSNPRINTF
+/*************************************************************************
+ * trio_vsnprintf
+ */
+int
+vsnprintf(char *buffer, size_t bufferSize, const char *format,
+ va_list args)
+{
+ int status;
+
+ assert(VALID(buffer));
+ assert(VALID(format));
+ assert(VALID(args));
+
+ status = TrioFormat(&buffer, bufferSize > 0 ? bufferSize - 1 : 0,
+ TrioOutStreamStringMax, format, args);
+ if (bufferSize > 0)
+ *buffer = NIL;
+ return status;
+}
+#endif
+
+/*************************************************************************
+ *
+ * SCANNING
+ *
+ ************************************************************************/
+
+/* DV for libxml */
+#ifndef HAVE_SSCANF
+
+/*************************************************************************
+ * TrioSkipWhitespaces [private]
+ */
+static int
+TrioSkipWhitespaces(trio_T *self)
+{
+ int ch;
+
+ ch = self->current;
+ while (isspace(ch))
+ {
+ self->InStream(self, &ch);
+ }
+ return ch;
+}
+
+/*************************************************************************
+ * TrioGetCharacterClass [private]
+ *
+ * FIXME:
+ * multibyte
+ */
+static int
+TrioGetCharacterClass(const char *format,
+ int *indexPointer,
+ int *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;
+
+ case QUALIFIER_COLON: /* Character class expressions */
+
+ if (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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 (StrEqualMax(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;
+ }
+ }
+ return 0;
+}
+
+/*************************************************************************
+ * TrioReadNumber [private]
+ *
+ * We implement our own number conversion in preference of strtol and
+ * strtoul, because we must handle 'long long' and thousand separators.
+ */
+static BOOLEAN_T
+TrioReadNumber(trio_T *self, LONGEST *target, int flags, int width, int base)
+{
+ LONGEST number = 0;
+ int digit;
+ int count;
+ BOOLEAN_T isNegative = FALSE;
+ int j;
+
+ assert(VALID(self));
+ assert(VALID(self->InStream));
+ assert((base >= MIN_BASE && base <= MAX_BASE) || (base == NO_BASE));
+
+ 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 = globalDigitArray[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; globalThousandSeparator[j] && self->current; j++)
+ {
+ if (globalThousandSeparator[j] != self->current)
+ break;
+
+ self->InStream(self, NULL);
+ }
+ if (globalThousandSeparator[j])
+ break; /* Mismatch */
+ else
+ continue; /* Match */
+ }
+ else
+ break;
+
+ number *= base;
+ number += digit;
+
+ self->InStream(self, NULL);
+ }
+
+ /* Was anything read at all? */
+ if (self->processed == count)
+ return FALSE;
+
+ if (target)
+ *target = (isNegative) ? -number : number;
+ return TRUE;
+}
+
+/*************************************************************************
+ * TrioReadChar [private]
+ */
+static BOOLEAN_T
+TrioReadChar(trio_T *self, char *target, int width)
+{
+ int i;
+
+ assert(VALID(self));
+ assert(VALID(self->InStream));
+
+ for (i = 0;
+ (self->current != EOF) && (i < width);
+ i++)
+ {
+ if (target)
+ target[i] = self->current;
+ self->InStream(self, NULL);
+ }
+ return TRUE;
+}
+
+/*************************************************************************
+ * TrioReadString [private]
+ */
+static BOOLEAN_T
+TrioReadString(trio_T *self, char *target, int flags, int width)
+{
+ int i;
+ char ch;
+ LONGEST number;
+
+ 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++)
+ {
+ ch = self->current;
+ if ((flags & FLAGS_ALTERNATIVE) && (ch == CHAR_BACKSLASH))
+ {
+ self->InStream(self, NULL);
+ switch (self->current)
+ {
+ case 'a':
+ ch = '\a';
+ 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;
+ case '\\':
+ ch = '\\';
+ break;
+ default:
+ if (isdigit(self->current))
+ {
+ /* Read octal number */
+ if (!TrioReadNumber(self, &number, 0, 3, BASE_OCTAL))
+ return FALSE;
+ 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 FALSE;
+ ch = (char)number;
+ }
+ else
+ {
+ ch = self->current;
+ }
+ break;
+ }
+ }
+ if (target)
+ target[i] = ch;
+ self->InStream(self, NULL);
+ }
+ if (target)
+ target[i] = NIL;
+ return TRUE;
+}
+
+/*************************************************************************
+ * TrioReadGroup [private]
+ *
+ * FIXME: characterclass does not work with multibyte characters
+ */
+static BOOLEAN_T
+TrioReadGroup(trio_T *self,
+ char *target,
+ int *characterclass,
+ int flags,
+ int width)
+{
+ unsigned 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 [private]
+ *
+ * FIXME:
+ * add hex-float format
+ * add long double
+ */
+static BOOLEAN_T
+TrioReadDouble(trio_T *self,
+ double *target,
+ int flags,
+ int width)
+{
+ int ch;
+ char doubleString[512] = "";
+ int index = 0;
+ int start;
+
+ if ((width == NO_WIDTH) || (width > sizeof(doubleString) - 1))
+ width = sizeof(doubleString) - 1;
+
+ TrioSkipWhitespaces(self);
+
+ /* Read entire double number from stream. StrToDouble 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++] = ch;
+ self->InStream(self, &ch);
+ width--;
+ }
+
+ start = index;
+#if defined(USE_INFINITE) || defined(USE_NAN)
+ switch (ch)
+ {
+#if defined(USE_NAN)
+ case 'n':
+ case 'N':
+ /* Not-a-number */
+ if (index != 0)
+ break;
+ /* FALLTHROUGH */
+#endif
+ case 'i':
+ case 'I':
+ /* Infinity */
+ while (isalpha(ch) && (index - start < width))
+ {
+ doubleString[index++] = ch;
+ self->InStream(self, &ch);
+ }
+ doubleString[index] = NIL;
+
+#if defined(USE_INFINITE)
+ /* Case insensitive string comparison */
+ if (StrEqual(&doubleString[start], INFINITE_UPPER) ||
+ StrEqual(&doubleString[start], LONG_INFINITE_UPPER))
+ {
+ *target = ((start == 1 && doubleString[0] == '-'))
+ ? -HUGE_VAL
+ : HUGE_VAL;
+ return TRUE;
+ }
+#endif
+#if defined(USE_NAN)
+ if (StrEqual(doubleString, NAN_LOWER))
+ {
+ /* NaN must not have a preceeding + nor - */
+ *target = NAN;
+ return TRUE;
+ }
+#endif
+ return FALSE;
+
+ default:
+ break;
+ }
+#endif
+
+ while (isdigit(ch) && (index - start < width))
+ {
+ /* Integer part */
+ doubleString[index++] = ch;
+ self->InStream(self, &ch);
+ }
+ if (ch == '.')
+ {
+ /* Decimal part */
+ doubleString[index++] = ch;
+ self->InStream(self, &ch);
+ while (isdigit(ch) && (index - start < width))
+ {
+ doubleString[index++] = ch;
+ self->InStream(self, &ch);
+ }
+ if ((ch == 'e') || (ch == 'E'))
+ {
+ /* Exponent */
+ doubleString[index++] = ch;
+ self->InStream(self, &ch);
+ if ((ch == '+') || (ch == '-'))
+ {
+ doubleString[index++] = ch;
+ self->InStream(self, &ch);
+ }
+ while (isdigit(ch) && (index - start < width))
+ {
+ doubleString[index++] = ch;
+ self->InStream(self, &ch);
+ }
+ }
+ }
+
+ if ((index == start) || (*doubleString == NIL))
+ return FALSE;
+
+ if (flags & FLAGS_LONGDOUBLE)
+/* *longdoublePointer = StrToLongDouble()*/;
+ else
+ {
+ *target = StrToDouble(doubleString, NULL);
+ }
+ return TRUE;
+}
+
+/*************************************************************************
+ * TrioReadPointer [private]
+ */
+static BOOLEAN_T
+TrioReadPointer(trio_T *self, void **target, int flags)
+{
+ LONGEST number;
+ char buffer[sizeof(null)];
+
+ flags |= (FLAGS_UNSIGNED | FLAGS_ALTERNATIVE | FLAGS_NILPADDING);
+
+ if (TrioReadNumber(self,
+ &number,
+ flags,
+ POINTER_WIDTH,
+ BASE_HEX))
+ {
+ /* The addition is a workaround for a compiler warning */
+ if (target)
+ *target = (void *)0 + number;
+ return TRUE;
+ }
+ else if (TrioReadString(self,
+ (flags & FLAGS_IGNORE)
+ ? NULL
+ : buffer,
+ 0,
+ sizeof(null) - 1))
+ {
+ if (StrEqualCase(buffer, null))
+ {
+ if (target)
+ *target = NULL;
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+/*************************************************************************
+ * TrioScan [private]
+ */
+static int
+TrioScan(void *source,
+ size_t sourceSize,
+ void (*InStream)(trio_T *, int *),
+ const char *format,
+ va_list args)
+{
+#if defined(USE_MULTIBYTE)
+ int charlen;
+#endif
+ int status;
+ int assignment;
+ parameter_T parameters[MAX_PARAMETERS];
+ trio_T internalData;
+ trio_T *data;
+ int ch;
+ int cnt;
+ int index; /* Index of format string */
+ int i; /* Index of current parameter */
+ int flags;
+ int width;
+ int base;
+ void *pointer;
+
+ assert(VALID(InStream));
+ assert(VALID(format));
+ assert(VALID(args));
+
+ memset(&internalData, 0, sizeof(internalData));
+ data = &internalData;
+ data->InStream = InStream;
+ data->location = source;
+ data->max = sourceSize;
+
+#if defined(USE_LOCALE)
+ if (NULL == globalLocaleValues)
+ {
+ TrioSetLocale();
+ }
+#endif
+ if (globalDigitsUnconverted)
+ {
+ memset(globalDigitArray, -1, sizeof(globalDigitArray));
+ for (i = 0; i < sizeof(globalDigitsLower) - 1; i++)
+ {
+ globalDigitArray[(int)globalDigitsLower[i]] = i;
+ globalDigitArray[(int)globalDigitsUpper[i]] = i;
+ }
+ globalDigitsUnconverted = FALSE;
+ }
+
+ status = TrioPreprocess(TYPE_SCAN, format, parameters, args);
+ if (status < 0)
+ return status;
+
+ assignment = 0;
+ i = 0;
+ index = 0;
+ data->InStream(data, &ch);
+
+#if defined(USE_MULTIBYTE)
+ mblen(NULL, 0);
+#endif
+
+ while (format[index])
+ {
+#if defined(USE_MULTIBYTE)
+ if (! isascii(format[index]))
+ {
+ charlen = mblen(&format[index], MB_LEN_MAX);
+ /* 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 */
+ }
+#endif
+ if (EOF == ch)
+ return 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.asSigned;
+ }
+ /* Find base */
+ base = parameters[i].base;
+ if (flags & FLAGS_BASE_PARAMETER)
+ {
+ /* Get base from parameter list */
+ base = (int)parameters[base].data.number.asSigned;
+ }
+
+ switch (parameters[i].type)
+ {
+ case FORMAT_INT:
+ {
+ LONGEST number;
+
+ if (0 == base)
+ base = BASE_DECIMAL;
+
+ if (!TrioReadNumber(data,
+ &number,
+ flags,
+ width,
+ base))
+ return assignment;
+ assignment++;
+
+ if (!(flags & FLAGS_IGNORE))
+ {
+ 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)
+ *(intmax_t *)pointer = (intmax_t)number;
+ else
+#endif
+ if (flags & FLAGS_QUAD)
+ *(ULONGLONG int *)pointer = (ULONGLONG)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 (!TrioReadString(data,
+ (flags & FLAGS_IGNORE)
+ ? NULL
+ : parameters[i].data.string,
+ flags,
+ width))
+ return assignment;
+ assignment++;
+ break; /* FORMAT_STRING */
+
+ case FORMAT_DOUBLE:
+ if (!TrioReadDouble(data,
+ (flags & FLAGS_IGNORE)
+ ? NULL
+ : parameters[i].data.doublePointer,
+ flags,
+ width))
+ return assignment;
+ assignment++;
+ break; /* FORMAT_DOUBLE */
+
+ case FORMAT_GROUP:
+ {
+ int characterclass[MAX_CHARACTER_CLASS + 1];
+ int rc;
+
+ index += 2;
+ 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;
+ assignment++;
+ }
+ break; /* FORMAT_GROUP */
+
+ case FORMAT_COUNT:
+ pointer = parameters[i].data.pointer;
+ if (NULL != pointer)
+ {
+#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)
+ *(intmax_t *)pointer = (intmax_t)data->committed;
+ else
+#endif
+ if (flags & FLAGS_QUAD)
+ {
+ *(ULONGLONG int *)pointer = (ULONGLONG)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_CHAR:
+ if (!TrioReadChar(data,
+ (flags & FLAGS_IGNORE)
+ ? NULL
+ : parameters[i].data.string,
+ (width == NO_WIDTH) ? 1 : width))
+ return assignment;
+ assignment++;
+ break; /* FORMAT_CHAR */
+
+ case FORMAT_POINTER:
+ if (!TrioReadPointer(data,
+ (flags & FLAGS_IGNORE)
+ ? NULL
+ : parameters[i].data.pointer,
+ flags))
+ return assignment;
+ 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 TRIO_ERROR_RETURN(TRIO_EINVAL, index);
+
+ index++;
+ }
+ }
+ return assignment;
+}
+
+/*************************************************************************
+ * TrioInStreamFile [private]
+ */
+static void
+TrioInStreamFile(trio_T *self, int *intPointer)
+{
+ FILE *file = (FILE *)self->location;
+
+ assert(VALID(self));
+ assert(VALID(file));
+
+ self->current = fgetc(file);
+ self->processed++;
+ self->committed++;
+
+ if (VALID(intPointer))
+ {
+ *intPointer = self->current;
+ }
+}
+
+/*************************************************************************
+ * TrioInStreamFileDescriptor [private]
+ */
+static void
+TrioInStreamFileDescriptor(trio_T *self, int *intPointer)
+{
+ int fd = *((int *)self->location);
+ int size;
+ unsigned char input;
+
+ assert(VALID(self));
+
+ size = read(fd, &input, sizeof(char));
+ self->current = (size == 0) ? EOF : input;
+ self->processed++;
+ self->committed++;
+
+ if (VALID(intPointer))
+ {
+ *intPointer = self->current;
+ }
+}
+
+/*************************************************************************
+ * TrioInStreamString [private]
+ */
+static void
+TrioInStreamString(trio_T *self, int *intPointer)
+{
+ unsigned char **buffer;
+
+ assert(VALID(self));
+ assert(VALID(self->InStream));
+ assert(VALID(self->location));
+
+ buffer = (unsigned char **)self->location;
+ self->current = (*buffer)[0];
+ if (self->current == NIL)
+ self->current = EOF;
+ (*buffer)++;
+ self->processed++;
+ self->committed++;
+
+ if (VALID(intPointer))
+ {
+ *intPointer = self->current;
+ }
+}
+
+/*************************************************************************
+ * trio_sscanf
+ */
+int
+sscanf(const char *buffer, const char *format, ...)
+{
+ int status;
+ va_list args;
+
+ assert(VALID(buffer));
+ assert(VALID(format));
+
+ va_start(args, format);
+ status = TrioScan(&buffer, 0, TrioInStreamString, format, args);
+ va_end(args);
+ return status;
+}
+
+/* DV for libxml */
+#endif /* !HAVE_SSCANF */
+#endif /* WITH_TRIO */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-20 15:50:34 +0000