/************************************************************************* * * $Id: trio.c,v 1.131 2010/09/12 11:08:08 breese Exp $ * * Copyright (C) 1998, 2009 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 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. The n-char-sequence can be used * to print the mantissa, e.g. NaN(0xc000000000000000) * - 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" #if defined(TRIO_EMBED_NAN) #define TRIO_PUBLIC_NAN static #if TRIO_FEATURE_FLOAT #define TRIO_FUNC_NAN #define TRIO_FUNC_NINF #define TRIO_FUNC_PINF #define TRIO_FUNC_FPCLASSIFY_AND_SIGNBIT #define TRIO_FUNC_ISINF #endif #endif #include "trionan.h" #if defined(TRIO_EMBED_STRING) #define TRIO_PUBLIC_STRING static #define TRIO_FUNC_LENGTH #define TRIO_FUNC_LENGTH_MAX #define TRIO_FUNC_TO_LONG #if TRIO_FEATURE_LOCALE #define TRIO_FUNC_COPY_MAX #endif #if TRIO_FEATURE_DYNAMICSTRING #define TRIO_FUNC_XSTRING_DUPLICATE #endif #if TRIO_EXTENSION && TRIO_FEATURE_SCANF #define TRIO_FUNC_EQUAL_LOCALE #endif #if TRIO_FEATURE_ERRNO #define TRIO_FUNC_ERROR #endif #if TRIO_FEATURE_FLOAT && TRIO_FEATURE_SCANF #define TRIO_FUNC_TO_DOUBLE #endif #if TRIO_FEATURE_DYNAMICSTRING #define TRIO_FUNC_STRING_EXTRACT #endif #if TRIO_FEATURE_DYNAMICSTRING #define TRIO_FUNC_STRING_TERMINATE #endif #if TRIO_FEATURE_USER_DEFINED #define TRIO_FUNC_DUPLICATE #endif #if TRIO_FEATURE_DYNAMICSTRING #define TRIO_FUNC_STRING_DESTROY #endif #if TRIO_FEATURE_USER_DEFINED #define TRIO_FUNC_DESTROY #endif #if TRIO_FEATURE_USER_DEFINED || (TRIO_FEATURE_FLOAT && TRIO_FEATURE_SCANF) #define TRIO_FUNC_EQUAL #endif #if TRIO_FEATURE_USER_DEFINED || TRIO_FEATURE_SCANF #define TRIO_FUNC_EQUAL_CASE #endif #if (TRIO_EXTENSION && TRIO_FEATURE_SCANF) #define TRIO_FUNC_EQUAL_MAX #endif #if TRIO_FEATURE_SCANF #define TRIO_FUNC_TO_UPPER #endif #if TRIO_FEATURE_DYNAMICSTRING #define TRIO_FUNC_XSTRING_APPEND_CHAR #endif #endif #include "triostr.h" /************************************************************************** * * Definitions * *************************************************************************/ #include #if TRIO_FEATURE_FLOAT #include #include #endif #if defined(__STDC_ISO_10646__) || defined(MB_LEN_MAX) || defined(USE_MULTIBYTE) || \ TRIO_FEATURE_WIDECHAR #if (!defined(TRIO_PLATFORM_WINCE) && !defined(ANDROID)) #define TRIO_COMPILER_SUPPORTS_MULTIBYTE #if !defined(MB_LEN_MAX) #define MB_LEN_MAX 6 #endif #endif #endif #if (TRIO_COMPILER_VISUALC - 0 >= 1100) || defined(TRIO_COMPILER_BORLAND) #define TRIO_COMPILER_SUPPORTS_VISUALC_INT #endif #if TRIO_FEATURE_FLOAT #if defined(PREDEF_STANDARD_C99) || defined(PREDEF_STANDARD_UNIX03) #if !defined(HAVE_FLOORL) && !defined(TRIO_NO_FLOORL) #define HAVE_FLOORL #endif #if !defined(HAVE_CEILL) && !defined(TRIO_NO_CEILL) #define HAVE_CEILL #endif #if !defined(HAVE_POWL) && !defined(TRIO_NO_POWL) #define HAVE_POWL #endif #if !defined(HAVE_FMODL) && !defined(TRIO_NO_FMODL) #define HAVE_FMODL #endif #if !defined(HAVE_LOG10L) && !defined(TRIO_NO_LOG10L) #define HAVE_LOG10L #endif #endif #if defined(TRIO_COMPILER_VISUALC) #if defined(floorl) #define HAVE_FLOORL #endif #if defined(ceill) #define HAVE_CEILL #endif #if defined(powl) #define HAVE_POWL #endif #if defined(fmodl) #define HAVE_FMODL #endif #if defined(log10l) #define HAVE_LOG10L #endif #endif #endif /************************************************************************* * Generic definitions */ #if !(defined(DEBUG) || defined(NDEBUG)) #define NDEBUG #endif #include #include #if defined(PREDEF_STANDARD_C99) && !defined(isascii) #define isascii(x) ((x)&0x7F) #endif #if defined(TRIO_COMPILER_ANCIENT) #include #else #include #endif #include #if defined(TRIO_PLATFORM_WINCE) extern int errno; #else #include #endif #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_FEATURE_ERRORCODE /* * 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 typedef unsigned long trio_flags_t; /************************************************************************* * Platform specific definitions */ #if defined(TRIO_PLATFORM_UNIX) #include #include #include #if !defined(TRIO_FEATURE_LOCALE) #define USE_LOCALE #endif #endif /* TRIO_PLATFORM_UNIX */ #if defined(TRIO_PLATFORM_VMS) #include #endif #if defined(TRIO_PLATFORM_WIN32) #if defined(TRIO_PLATFORM_WINCE) int read(int handle, char* buffer, unsigned int length); int write(int handle, const char* buffer, unsigned int length); #else #include #define read _read #define write _write #endif #endif /* TRIO_PLATFORM_WIN32 */ #if TRIO_FEATURE_WIDECHAR #if defined(PREDEF_STANDARD_C94) #include #include 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 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 #else #if defined(TRIO_COMPILER_SUNPRO) #define USE_LONGLONG #else #if defined(TRIO_COMPILER_MSVC) && (_MSC_VER >= 1400) #define USE_LONGLONG #else #if defined(_LONG_LONG) || defined(_LONGLONG) #define USE_LONGLONG #endif #endif #endif #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; #else #if defined(TRIO_COMPILER_SUPPORTS_VISUALC_INT) typedef signed __int64 trio_longlong_t; typedef unsigned __int64 trio_ulonglong_t; #else typedef TRIO_SIGNED long int trio_longlong_t; typedef unsigned long int trio_ulonglong_t; #endif #endif /* Maximal and fixed integer types */ #if defined(PREDEF_STANDARD_C99) #include 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; #else #if defined(PREDEF_STANDARD_UNIX98) #include 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; #else #if defined(TRIO_COMPILER_SUPPORTS_VISUALC_INT) 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 #endif #endif #if defined(HAVE_FLOORL) #define trio_floor(x) floorl((x)) #else #define trio_floor(x) floor((double)(x)) #endif #if defined(HAVE_CEILL) #define trio_ceil(x) ceill((x)) #else #define trio_ceil(x) ceil((double)(x)) #endif #if defined(HAVE_FMODL) #define trio_fmod(x, y) fmodl((x), (y)) #else #define trio_fmod(x, y) fmod((double)(x), (double)(y)) #endif #if defined(HAVE_POWL) #define trio_pow(x, y) powl((x), (y)) #else #define trio_pow(x, y) pow((double)(x), (double)(y)) #endif #if defined(HAVE_LOG10L) #define trio_log10(x) log10l((x)) #else #define trio_log10(x) log10((double)(x)) #endif #if TRIO_FEATURE_FLOAT #define TRIO_FABS(x) (((x) < 0.0) ? -(x) : (x)) #endif /************************************************************************* * Internal Definitions */ #ifdef _WIN32 #pragma warning(push) #pragma warning(disable : 4244) #endif #if TRIO_FEATURE_FLOAT #if !defined(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 #endif /* TRIO_FEATURE_FLOAT */ /* 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) #if TRIO_FEATURE_FLOAT /* 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" #endif /* Various constants */ enum { TYPE_PRINT = 1, #if TRIO_FEATURE_SCANF TYPE_SCAN = 2, #endif /* Flags. FLAGS_LAST must be less than ULONG_MAX */ 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_IGNORE = 2 * FLAGS_WIDECHAR, FLAGS_IGNORE_PARAMETER = 2 * FLAGS_IGNORE, FLAGS_VARSIZE_PARAMETER = 2 * FLAGS_IGNORE_PARAMETER, FLAGS_FIXED_SIZE = 2 * FLAGS_VARSIZE_PARAMETER, FLAGS_LAST = FLAGS_FIXED_SIZE, /* Reused flags */ FLAGS_EXCLUDE = FLAGS_SHORT, FLAGS_USER_DEFINED = FLAGS_IGNORE, FLAGS_USER_DEFINED_PARAMETER = FLAGS_IGNORE_PARAMETER, 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, #if TRIO_FEATURE_USER_DEFINED /* Maximal string lengths for user-defined specifiers */ MAX_USER_NAME = 64, MAX_USER_DATA = 256, #endif /* Maximal length of locale separator strings */ MAX_LOCALE_SEPARATOR_LENGTH = MB_LEN_MAX, /* Maximal number of integers in grouping */ MAX_LOCALE_GROUPS = 64 }; #define NO_GROUPING ((int)CHAR_MAX) /* Fundamental formatting parameter types */ #define FORMAT_SENTINEL -1 /* marks end of parameters array */ #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 #define FORMAT_ERRNO 9 #define FORMAT_USER_DEFINED 10 /* Character constants */ #define CHAR_IDENTIFIER '%' #define CHAR_ALT_IDENTIFIER '$' #define CHAR_BACKSLASH '\\' #define CHAR_QUOTE '\"' #define CHAR_ADJUST ' ' #if TRIO_EXTENSION /* 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:]" #endif /* * 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' #if TRIO_FEATURE_FLOAT #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' #endif #define SPECIFIER_POINTER 'p' #if TRIO_FEATURE_SCANF #define SPECIFIER_GROUP '[' #define SPECIFIER_UNGROUP ']' #endif #define SPECIFIER_COUNT 'n' #if TRIO_UNIX98 #define SPECIFIER_CHAR_UPPER 'C' #define SPECIFIER_STRING_UPPER 'S' #endif #define SPECIFIER_HEXFLOAT 'a' #define SPECIFIER_HEXFLOAT_UPPER 'A' #define SPECIFIER_ERRNO 'm' #if TRIO_FEATURE_BINARY #define SPECIFIER_BINARY 'b' #define SPECIFIER_BINARY_UPPER 'B' #endif #if TRIO_FEATURE_USER_DEFINED #define SPECIFIER_USER_DEFINED_BEGIN '<' #define SPECIFIER_USER_DEFINED_END '>' #define SPECIFIER_USER_DEFINED_SEPARATOR ':' #define SPECIFIER_USER_DEFINED_EXTRA '|' #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 */ #define QUALIFIER_SIZE_T 'z' #define QUALIFIER_PTRDIFF_T 't' #define QUALIFIER_INTMAX_T 'j' #define QUALIFIER_QUAD 'q' #define QUALIFIER_SIZE_T_UPPER 'Z' #if TRIO_MISC #define QUALIFIER_WIDECHAR 'w' #endif #define QUALIFIER_FIXED_SIZE 'I' #define QUALIFIER_QUOTE '\'' #define QUALIFIER_STICKY '!' #define QUALIFIER_VARSIZE '&' /* This should remain undocumented */ #define QUALIFIER_ROUNDING_UPPER 'R' #if TRIO_EXTENSION #define QUALIFIER_PARAM '@' /* Experimental */ #define QUALIFIER_COLON ':' /* For scanlists */ #define QUALIFIER_EQUAL '=' /* For scanlists */ #endif /************************************************************************* * * Internal Structures * *************************************************************************/ /* Parameters */ typedef struct { /* An indication of which entry in the data union is used */ int type; /* The flags */ trio_flags_t flags; /* The width qualifier */ int width; /* The precision qualifier */ int precision; /* The base qualifier */ int base; /* Base from specifier */ int baseSpecifier; /* The size for the variable size qualifier */ int varsize; /* Offset of the first character of the specifier */ int beginOffset; /* Offset of the first character after the specifier */ int endOffset; /* Position in the argument list that this parameter refers to */ int position; /* The data from the argument list */ union { char* string; #if TRIO_FEATURE_WIDECHAR trio_wchar_t* wstring; #endif trio_pointer_t pointer; union { trio_intmax_t as_signed; trio_uintmax_t as_unsigned; } number; #if TRIO_FEATURE_FLOAT double doubleNumber; double* doublePointer; trio_long_double_t longdoubleNumber; trio_long_double_t* longdoublePointer; #endif int errorNumber; } data; #if TRIO_FEATURE_USER_DEFINED /* For the user-defined specifier */ union { char namespace[MAX_USER_NAME]; int handler; /* if flags & FLAGS_USER_DEFINED_PARAMETER */ } user_defined; char user_data[MAX_USER_DATA]; #endif } 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 function to undo read characters from a stream. */ void(*UndoStream) TRIO_PROTO((struct _trio_class_t*)); /* * 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; union { /* * The number of characters that are actually written. Processed and * committed will only differ for the *nprintf functions. */ int committed; /* * The number of look-ahead characters read. */ int cached; } actually; /* * 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; #if TRIO_FEATURE_USER_DEFINED /* 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; #endif /************************************************************************* * * Internal Variables * *************************************************************************/ /* Unused but kept for reference */ /* static TRIO_CONST char rcsid[] = "@(#)$Id: trio.c,v 1.131 2010/09/12 11:08:08 breese Exp $"; */ #if TRIO_FEATURE_FLOAT /* * 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 #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 (.)" */ #if TRIO_FEATURE_FLOAT || TRIO_FEATURE_LOCALE || defined(USE_LOCALE) static int internalDecimalPointLength = 1; static char internalDecimalPoint = '.'; static char internalDecimalPointString[MAX_LOCALE_SEPARATOR_LENGTH + 1] = "."; #endif #if TRIO_FEATURE_QUOTE || TRIO_FEATURE_LOCALE || TRIO_EXTENSION static int internalThousandSeparatorLength = 1; static char internalThousandSeparator[MAX_LOCALE_SEPARATOR_LENGTH + 1] = ","; static char internalGrouping[MAX_LOCALE_GROUPS] = { (char)NO_GROUPING }; #endif static TRIO_CONST char internalDigitsLower[] = "0123456789abcdefghijklmnopqrstuvwxyz"; static TRIO_CONST char internalDigitsUpper[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; #if TRIO_FEATURE_SCANF 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 #endif #if TRIO_FEATURE_USER_DEFINED 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_EMBED_NAN) #include "trionan.c" #endif #if defined(TRIO_EMBED_STRING) #include "triostr.c" #endif /************************************************************************* * TrioInitializeParameter * * Description: * Initialize a trio_parameter_t struct. */ TRIO_PRIVATE void TrioInitializeParameter TRIO_ARGS1((parameter), trio_parameter_t* parameter) { parameter->type = FORMAT_UNKNOWN; parameter->flags = 0; parameter->width = 0; parameter->precision = 0; parameter->base = 0; parameter->baseSpecifier = 0; parameter->varsize = 0; parameter->beginOffset = 0; parameter->endOffset = 0; parameter->position = 0; parameter->data.pointer = 0; #if TRIO_FEATURE_USER_DEFINED parameter->user_defined.handler = 0; parameter->user_data[0] = 0; #endif } /************************************************************************* * TrioCopyParameter * * Description: * Copies one trio_parameter_t struct to another. */ TRIO_PRIVATE void TrioCopyParameter TRIO_ARGS2((target, source), trio_parameter_t* target, TRIO_CONST trio_parameter_t* source) { #if TRIO_FEATURE_USER_DEFINED size_t i; #endif target->type = source->type; target->flags = source->flags; target->width = source->width; target->precision = source->precision; target->base = source->base; target->baseSpecifier = source->baseSpecifier; target->varsize = source->varsize; target->beginOffset = source->beginOffset; target->endOffset = source->endOffset; target->position = source->position; target->data = source->data; #if TRIO_FEATURE_USER_DEFINED target->user_defined = source->user_defined; for (i = 0U; i < sizeof(target->user_data); ++i) { if ((target->user_data[i] = source->user_data[i]) == NIL) break; } #endif } /************************************************************************* * 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_CIRCUMFLEX: case QUALIFIER_LONG_UPPER: case QUALIFIER_SIZE_T: case QUALIFIER_PTRDIFF_T: case QUALIFIER_INTMAX_T: case QUALIFIER_QUAD: case QUALIFIER_SIZE_T_UPPER: #if defined(QUALIFIER_WIDECHAR) case QUALIFIER_WIDECHAR: #endif case QUALIFIER_QUOTE: case QUALIFIER_STICKY: case QUALIFIER_VARSIZE: #if defined(QUALIFIER_PARAM) case QUALIFIER_PARAM: #endif case QUALIFIER_FIXED_SIZE: case QUALIFIER_ROUNDING_UPPER: 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 TRIO_EXTENSION if ((internalLocaleValues->thousands_sep) && (internalLocaleValues->thousands_sep[0] != NIL)) { trio_copy_max(internalThousandSeparator, sizeof(internalThousandSeparator), internalLocaleValues->thousands_sep); internalThousandSeparatorLength = trio_length(internalThousandSeparator); } #endif #if TRIO_EXTENSION if ((internalLocaleValues->grouping) && (internalLocaleValues->grouping[0] != NIL)) { trio_copy_max(internalGrouping, sizeof(internalGrouping), internalLocaleValues->grouping); } #endif } } #endif /* defined(USE_LOCALE) */ #if TRIO_FEATURE_FLOAT && TRIO_FEATURE_QUOTE TRIO_PRIVATE int TrioCalcThousandSeparatorLength TRIO_ARGS1((digits), int digits) { 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; } #endif /* TRIO_FEATURE_FLOAT && TRIO_FEATURE_QUOTE */ #if TRIO_FEATURE_QUOTE TRIO_PRIVATE BOOLEAN_T TrioFollowedBySeparator TRIO_ARGS1((position), int position) { 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); } #endif /* TRIO_FEATURE_QUOTE */ /************************************************************************* * TrioGetPosition * * Get the %n$ position. */ TRIO_PRIVATE int TrioGetPosition TRIO_ARGS2((format, offsetPointer), TRIO_CONST char* format, int* offsetPointer) { #if TRIO_FEATURE_POSITIONAL char* tmpformat; int number = 0; int offset = *offsetPointer; number = (int)trio_to_long(&format[offset], &tmpformat, BASE_DECIMAL); offset = (int)(tmpformat - format); if ((number != 0) && (QUALIFIER_POSITION == format[offset++])) { *offsetPointer = offset; /* * 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; } /************************************************************************* * TrioFindNamespace * * Find registered user-defined specifier. * The prev argument is used for optimization only. */ #if TRIO_FEATURE_USER_DEFINED 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. */ #if TRIO_FEATURE_FLOAT 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 = trio_pow((trio_long_double_t)number, (trio_long_double_t)exponent); break; } } else { return trio_pow((trio_long_double_t)number, (trio_long_double_t)exponent); } return result; } #endif /* TRIO_FEATURE_FLOAT */ /************************************************************************* * TrioLogarithm */ #if TRIO_FEATURE_FLOAT TRIO_PRIVATE trio_long_double_t TrioLogarithm TRIO_ARGS2((number, base), trio_long_double_t number, int base) { trio_long_double_t result; if (number <= 0.0) { /* xlC crashes on log(0) */ result = (number == 0.0) ? trio_ninf() : trio_nan(); } else { if (base == 10) { result = trio_log10(number); } else { result = trio_log10(number) / trio_log10((double)base); } } return result; } #endif /* TRIO_FEATURE_FLOAT */ /************************************************************************* * TrioLogarithmBase */ #if TRIO_FEATURE_FLOAT 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); } } #endif /* TRIO_FEATURE_FLOAT */ /************************************************************************* * TrioParseQualifiers * * Description: * Parse the qualifiers of a potential conversion specifier */ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wimplicit-fallthrough" TRIO_PRIVATE int TrioParseQualifiers TRIO_ARGS4((type, format, offset, parameter), int type, TRIO_CONST char* format, int offset, trio_parameter_t* parameter) { char ch; int dots = 0; /* Count number of dots in modifier part */ char* tmpformat; parameter->beginOffset = offset - 1; parameter->flags = FLAGS_NEW; parameter->position = TrioGetPosition(format, &offset); /* Default values */ parameter->width = NO_WIDTH; parameter->precision = NO_PRECISION; parameter->base = NO_BASE; parameter->varsize = NO_SIZE; while (TrioIsQualifier(format[offset])) { ch = format[offset++]; switch (ch) { case QUALIFIER_SPACE: parameter->flags |= FLAGS_SPACE; break; case QUALIFIER_PLUS: parameter->flags |= FLAGS_SHOWSIGN; break; case QUALIFIER_MINUS: parameter->flags |= FLAGS_LEFTADJUST; parameter->flags &= ~FLAGS_NILPADDING; break; case QUALIFIER_ALTERNATIVE: parameter->flags |= FLAGS_ALTERNATIVE; break; case QUALIFIER_DOT: if (dots == 0) /* Precision */ { dots++; /* Skip if no precision */ if (QUALIFIER_DOT == format[offset]) break; /* After the first dot we have the precision */ parameter->flags |= FLAGS_PRECISION; if ((QUALIFIER_STAR == format[offset]) #if defined(QUALIFIER_PARAM) || (QUALIFIER_PARAM == format[offset]) #endif ) { offset++; parameter->flags |= FLAGS_PRECISION_PARAMETER; parameter->precision = TrioGetPosition(format, &offset); } else { parameter->precision = trio_to_long(&format[offset], &tmpformat, BASE_DECIMAL); offset = (int)(tmpformat - format); } } else if (dots == 1) /* Base */ { dots++; /* After the second dot we have the base */ parameter->flags |= FLAGS_BASE; if ((QUALIFIER_STAR == format[offset]) #if defined(QUALIFIER_PARAM) || (QUALIFIER_PARAM == format[offset]) #endif ) { offset++; parameter->flags |= FLAGS_BASE_PARAMETER; parameter->base = TrioGetPosition(format, &offset); } else { parameter->base = trio_to_long(&format[offset], &tmpformat, BASE_DECIMAL); if (parameter->base > MAX_BASE) return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); offset = (int)(tmpformat - format); } } else { return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); } break; /* QUALIFIER_DOT */ #if defined(QUALIFIER_PARAM) case QUALIFIER_PARAM: parameter->type = TYPE_PRINT; /* FALLTHROUGH */ #endif case QUALIFIER_STAR: /* This has different meanings for print and scan */ if (TYPE_PRINT == type) { /* Read with from parameter */ int width = TrioGetPosition(format, &offset); parameter->flags |= (FLAGS_WIDTH | FLAGS_WIDTH_PARAMETER); if (NO_POSITION != width) parameter->width = width; /* else keep parameter->width = NO_WIDTH which != NO_POSITION */ } #if TRIO_FEATURE_SCANF else { /* Scan, but do not store result */ parameter->flags |= FLAGS_IGNORE; } #endif break; /* QUALIFIER_STAR */ case '0': if (!(parameter->flags & FLAGS_LEFTADJUST)) parameter->flags |= FLAGS_NILPADDING; /* FALLTHROUGH */ case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': parameter->flags |= FLAGS_WIDTH; /* * &format[offset - 1] is used to "rewind" the read * character from format */ parameter->width = trio_to_long(&format[offset - 1], &tmpformat, BASE_DECIMAL); offset = (int)(tmpformat - format); break; case QUALIFIER_SHORT: if (parameter->flags & FLAGS_SHORTSHORT) return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); else if (parameter->flags & FLAGS_SHORT) parameter->flags |= FLAGS_SHORTSHORT; else parameter->flags |= FLAGS_SHORT; break; case QUALIFIER_LONG: if (parameter->flags & FLAGS_QUAD) return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); else if (parameter->flags & FLAGS_LONG) parameter->flags |= FLAGS_QUAD; else parameter->flags |= FLAGS_LONG; break; #if TRIO_FEATURE_LONGDOUBLE case QUALIFIER_LONG_UPPER: parameter->flags |= FLAGS_LONGDOUBLE; break; #endif #if TRIO_FEATURE_SIZE_T case QUALIFIER_SIZE_T: parameter->flags |= FLAGS_SIZE_T; /* Modify flags for later truncation of number */ if (sizeof(size_t) == sizeof(trio_ulonglong_t)) parameter->flags |= FLAGS_QUAD; else if (sizeof(size_t) == sizeof(long)) parameter->flags |= FLAGS_LONG; break; #endif #if TRIO_FEATURE_PTRDIFF_T case QUALIFIER_PTRDIFF_T: parameter->flags |= FLAGS_PTRDIFF_T; if (sizeof(ptrdiff_t) == sizeof(trio_ulonglong_t)) parameter->flags |= FLAGS_QUAD; else if (sizeof(ptrdiff_t) == sizeof(long)) parameter->flags |= FLAGS_LONG; break; #endif #if TRIO_FEATURE_INTMAX_T case QUALIFIER_INTMAX_T: parameter->flags |= FLAGS_INTMAX_T; if (sizeof(trio_intmax_t) == sizeof(trio_ulonglong_t)) parameter->flags |= FLAGS_QUAD; else if (sizeof(trio_intmax_t) == sizeof(long)) parameter->flags |= FLAGS_LONG; break; #endif #if TRIO_FEATURE_QUAD case QUALIFIER_QUAD: parameter->flags |= FLAGS_QUAD; break; #endif #if TRIO_FEATURE_FIXED_SIZE case QUALIFIER_FIXED_SIZE: if (parameter->flags & FLAGS_FIXED_SIZE) return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); if (parameter->flags & (FLAGS_ALL_SIZES | FLAGS_LONGDOUBLE | FLAGS_WIDECHAR | FLAGS_VARSIZE_PARAMETER)) return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); if ((format[offset] == '6') && (format[offset + 1] == '4')) { parameter->varsize = sizeof(trio_int64_t); offset += 2; } else if ((format[offset] == '3') && (format[offset + 1] == '2')) { parameter->varsize = sizeof(trio_int32_t); offset += 2; } else if ((format[offset] == '1') && (format[offset + 1] == '6')) { parameter->varsize = sizeof(trio_int16_t); offset += 2; } else if (format[offset] == '8') { parameter->varsize = sizeof(trio_int8_t); offset++; } else return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); parameter->flags |= FLAGS_FIXED_SIZE; break; #endif /* TRIO_FEATURE_FIXED_SIZE */ #if defined(QUALIFIER_WIDECHAR) case QUALIFIER_WIDECHAR: parameter->flags |= FLAGS_WIDECHAR; break; #endif #if TRIO_FEATURE_SIZE_T_UPPER case QUALIFIER_SIZE_T_UPPER: break; #endif #if TRIO_FEATURE_QUOTE case QUALIFIER_QUOTE: parameter->flags |= FLAGS_QUOTE; break; #endif #if TRIO_FEATURE_STICKY case QUALIFIER_STICKY: parameter->flags |= FLAGS_STICKY; break; #endif #if TRIO_FEATURE_VARSIZE case QUALIFIER_VARSIZE: parameter->flags |= FLAGS_VARSIZE_PARAMETER; break; #endif #if TRIO_FEATURE_ROUNDING case QUALIFIER_ROUNDING_UPPER: parameter->flags |= FLAGS_ROUNDING; break; #endif default: /* Bail out completely to make the error more obvious */ return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); } } /* while qualifier */ parameter->endOffset = offset; return 0; } #pragma GCC diagnostic pop /************************************************************************* * TrioParseSpecifier * * Description: * Parse the specifier part of a potential conversion specifier */ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wimplicit-fallthrough" TRIO_PRIVATE int TrioParseSpecifier TRIO_ARGS4((type, format, offset, parameter), int type, TRIO_CONST char* format, int offset, trio_parameter_t* parameter) { parameter->baseSpecifier = NO_BASE; switch (format[offset++]) { #if defined(SPECIFIER_CHAR_UPPER) case SPECIFIER_CHAR_UPPER: parameter->flags |= FLAGS_WIDECHAR; /* FALLTHROUGH */ #endif case SPECIFIER_CHAR: if (parameter->flags & FLAGS_LONG) parameter->flags |= FLAGS_WIDECHAR; else if (parameter->flags & FLAGS_SHORT) parameter->flags &= ~FLAGS_WIDECHAR; parameter->type = FORMAT_CHAR; break; #if defined(SPECIFIER_STRING_UPPER) case SPECIFIER_STRING_UPPER: parameter->flags |= FLAGS_WIDECHAR; /* FALLTHROUGH */ #endif case SPECIFIER_STRING: if (parameter->flags & FLAGS_LONG) parameter->flags |= FLAGS_WIDECHAR; else if (parameter->flags & FLAGS_SHORT) parameter->flags &= ~FLAGS_WIDECHAR; parameter->type = FORMAT_STRING; break; #if defined(SPECIFIER_GROUP) case SPECIFIER_GROUP: if (TYPE_SCAN == type) { int depth = 1; parameter->type = FORMAT_GROUP; if (format[offset] == QUALIFIER_CIRCUMFLEX) offset++; if (format[offset] == SPECIFIER_UNGROUP) offset++; if (format[offset] == QUALIFIER_MINUS) offset++; /* Skip nested brackets */ while (format[offset] != NIL) { if (format[offset] == SPECIFIER_GROUP) { depth++; } else if (format[offset] == SPECIFIER_UNGROUP) { if (--depth <= 0) { offset++; break; } } offset++; } } break; #endif /* defined(SPECIFIER_GROUP) */ case SPECIFIER_INTEGER: parameter->type = FORMAT_INT; break; case SPECIFIER_UNSIGNED: parameter->flags |= FLAGS_UNSIGNED; parameter->type = FORMAT_INT; break; case SPECIFIER_DECIMAL: parameter->baseSpecifier = BASE_DECIMAL; parameter->type = FORMAT_INT; break; case SPECIFIER_OCTAL: parameter->flags |= FLAGS_UNSIGNED; parameter->baseSpecifier = BASE_OCTAL; parameter->type = FORMAT_INT; break; #if TRIO_FEATURE_BINARY case SPECIFIER_BINARY_UPPER: parameter->flags |= FLAGS_UPPER; /* FALLTHROUGH */ case SPECIFIER_BINARY: parameter->flags |= FLAGS_NILPADDING; parameter->baseSpecifier = BASE_BINARY; parameter->type = FORMAT_INT; break; #endif case SPECIFIER_HEX_UPPER: parameter->flags |= FLAGS_UPPER; /* FALLTHROUGH */ case SPECIFIER_HEX: parameter->flags |= FLAGS_UNSIGNED; parameter->baseSpecifier = BASE_HEX; parameter->type = FORMAT_INT; break; #if defined(SPECIFIER_FLOAT_E) #if defined(SPECIFIER_FLOAT_E_UPPER) case SPECIFIER_FLOAT_E_UPPER: parameter->flags |= FLAGS_UPPER; /* FALLTHROUGH */ #endif case SPECIFIER_FLOAT_E: parameter->flags |= FLAGS_FLOAT_E; parameter->type = FORMAT_DOUBLE; break; #endif #if defined(SPECIFIER_FLOAT_G) #if defined(SPECIFIER_FLOAT_G_UPPER) case SPECIFIER_FLOAT_G_UPPER: parameter->flags |= FLAGS_UPPER; /* FALLTHROUGH */ #endif case SPECIFIER_FLOAT_G: parameter->flags |= FLAGS_FLOAT_G; parameter->type = FORMAT_DOUBLE; break; #endif #if defined(SPECIFIER_FLOAT_F) #if defined(SPECIFIER_FLOAT_F_UPPER) case SPECIFIER_FLOAT_F_UPPER: parameter->flags |= FLAGS_UPPER; /* FALLTHROUGH */ #endif case SPECIFIER_FLOAT_F: parameter->type = FORMAT_DOUBLE; break; #endif #if defined(TRIO_COMPILER_VISUALC) #pragma warning(push) #pragma warning(disable : 4127) /* Conditional expression is constant */ #endif case SPECIFIER_POINTER: if (sizeof(trio_pointer_t) == sizeof(trio_ulonglong_t)) parameter->flags |= FLAGS_QUAD; else if (sizeof(trio_pointer_t) == sizeof(long)) parameter->flags |= FLAGS_LONG; parameter->type = FORMAT_POINTER; break; #if defined(TRIO_COMPILER_VISUALC) #pragma warning(pop) #endif case SPECIFIER_COUNT: parameter->type = FORMAT_COUNT; break; #if TRIO_FEATURE_HEXFLOAT case SPECIFIER_HEXFLOAT_UPPER: parameter->flags |= FLAGS_UPPER; /* FALLTHROUGH */ case SPECIFIER_HEXFLOAT: parameter->baseSpecifier = BASE_HEX; parameter->type = FORMAT_DOUBLE; break; #endif #if TRIO_FEATURE_ERRNO case SPECIFIER_ERRNO: parameter->type = FORMAT_ERRNO; break; #endif #if TRIO_FEATURE_USER_DEFINED case SPECIFIER_USER_DEFINED_BEGIN: { unsigned int max; int without_namespace = TRUE; char* tmpformat = (char*)&format[offset]; int ch; parameter->type = FORMAT_USER_DEFINED; parameter->user_defined.namespace[0] = NIL; while ((ch = format[offset]) != NIL) { offset++; if ((ch == SPECIFIER_USER_DEFINED_END) || (ch == SPECIFIER_USER_DEFINED_EXTRA)) { if (without_namespace) /* No namespace, handler will be passed as an argument */ parameter->flags |= FLAGS_USER_DEFINED_PARAMETER; /* Copy the user data */ max = (unsigned int)(&format[offset] - tmpformat); if (max > MAX_USER_DATA) max = MAX_USER_DATA; trio_copy_max(parameter->user_data, max, tmpformat); /* Skip extra data (which is only there to keep the compiler happy) */ while ((ch != NIL) && (ch != SPECIFIER_USER_DEFINED_END)) ch = format[offset++]; break; /* while */ } if (ch == SPECIFIER_USER_DEFINED_SEPARATOR) { without_namespace = FALSE; /* Copy the namespace for later looking-up */ max = (int)(&format[offset] - tmpformat); if (max > MAX_USER_NAME) max = MAX_USER_NAME; trio_copy_max(parameter->user_defined.namespace, max, tmpformat); tmpformat = (char*)&format[offset]; } } if (ch != SPECIFIER_USER_DEFINED_END) return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); } break; #endif /* TRIO_FEATURE_USER_DEFINED */ default: /* Bail out completely to make the error more obvious */ return TRIO_ERROR_RETURN(TRIO_EINVAL, offset); } parameter->endOffset = offset; return 0; } #pragma GCC diagnostic pop /************************************************************************* * TrioParse * * Description: * Parse the format string */ TRIO_PRIVATE int TrioParse TRIO_ARGS6((type, format, parameters, arglist, argfunc, argarray), int type, TRIO_CONST char* format, trio_parameter_t* parameters, va_list arglist, trio_argfunc_t argfunc, trio_pointer_t* argarray) { /* Count the number of times a parameter is referenced */ unsigned short usedEntries[MAX_PARAMETERS]; /* Parameter counters */ int parameterPosition; int maxParam = -1; /* Utility variables */ int offset; /* Offset into formatting string */ BOOLEAN_T positional; /* Does the specifier have a positional? */ #if TRIO_FEATURE_STICKY BOOLEAN_T gotSticky = FALSE; /* Are there any sticky modifiers at all? */ #endif /* * 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 */ #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) int charlen; #endif int save_errno; int i = -1; int num; trio_parameter_t workParameter; int status; /* Both must be set or none must be set */ assert(((argfunc == NULL) && (argarray == NULL)) || ((argfunc != 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; offset = 0; parameterPosition = 0; #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) (void)mblen(NULL, 0); #endif while (format[offset]) { TrioInitializeParameter(&workParameter); #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) if (!isascii(format[offset])) { /* * Multibyte characters cannot be legal specifiers or * modifiers, so we skip over them. */ charlen = mblen(&format[offset], MB_LEN_MAX); offset += (charlen > 0) ? charlen : 1; continue; /* while */ } #endif /* TRIO_COMPILER_SUPPORTS_MULTIBYTE */ switch (format[offset++]) { case CHAR_IDENTIFIER: { if (CHAR_IDENTIFIER == format[offset]) { /* skip double "%" */ offset++; continue; /* while */ } status = TrioParseQualifiers(type, format, offset, &workParameter); if (status < 0) return status; /* Return qualifier syntax error */ status = TrioParseSpecifier(type, format, workParameter.endOffset, &workParameter); if (status < 0) return status; /* Return specifier syntax error */ } break; #if TRIO_EXTENSION case CHAR_ALT_IDENTIFIER: { status = TrioParseQualifiers(type, format, offset, &workParameter); if (status < 0) continue; /* False alert, not a user defined specifier */ status = TrioParseSpecifier(type, format, workParameter.endOffset, &workParameter); if ((status < 0) || (FORMAT_USER_DEFINED != workParameter.type)) continue; /* False alert, not a user defined specifier */ } break; #endif default: continue; /* while */ } /* now handle the parsed conversion specification */ positional = (NO_POSITION != workParameter.position); /* * Parameters only need the type and value. The value is * read later. */ if (workParameter.flags & FLAGS_WIDTH_PARAMETER) { if (workParameter.width == NO_WIDTH) { workParameter.width = parameterPosition++; } else { if (!positional) workParameter.position = workParameter.width + 1; } usedEntries[workParameter.width] += 1; if (workParameter.width > maxParam) maxParam = workParameter.width; parameters[pos].type = FORMAT_PARAMETER; parameters[pos].flags = 0; indices[workParameter.width] = pos; workParameter.width = pos++; } if (workParameter.flags & FLAGS_PRECISION_PARAMETER) { if (workParameter.precision == NO_PRECISION) { workParameter.precision = parameterPosition++; } else { if (!positional) workParameter.position = workParameter.precision + 1; } usedEntries[workParameter.precision] += 1; if (workParameter.precision > maxParam) maxParam = workParameter.precision; parameters[pos].type = FORMAT_PARAMETER; parameters[pos].flags = 0; indices[workParameter.precision] = pos; workParameter.precision = pos++; } if (workParameter.flags & FLAGS_BASE_PARAMETER) { if (workParameter.base == NO_BASE) { workParameter.base = parameterPosition++; } else { if (!positional) workParameter.position = workParameter.base + 1; } usedEntries[workParameter.base] += 1; if (workParameter.base > maxParam) maxParam = workParameter.base; parameters[pos].type = FORMAT_PARAMETER; parameters[pos].flags = 0; indices[workParameter.base] = pos; workParameter.base = pos++; } #if TRIO_FEATURE_VARSIZE if (workParameter.flags & FLAGS_VARSIZE_PARAMETER) { workParameter.varsize = parameterPosition++; usedEntries[workParameter.varsize] += 1; if (workParameter.varsize > maxParam) maxParam = workParameter.varsize; parameters[pos].type = FORMAT_PARAMETER; parameters[pos].flags = 0; indices[workParameter.varsize] = pos; workParameter.varsize = pos++; } #endif #if TRIO_FEATURE_USER_DEFINED if (workParameter.flags & FLAGS_USER_DEFINED_PARAMETER) { workParameter.user_defined.handler = parameterPosition++; usedEntries[workParameter.user_defined.handler] += 1; if (workParameter.user_defined.handler > maxParam) maxParam = workParameter.user_defined.handler; parameters[pos].type = FORMAT_PARAMETER; parameters[pos].flags = FLAGS_USER_DEFINED; indices[workParameter.user_defined.handler] = pos; workParameter.user_defined.handler = pos++; } #endif if (NO_POSITION == workParameter.position) { workParameter.position = parameterPosition++; } if (workParameter.position > maxParam) maxParam = workParameter.position; if (workParameter.position >= MAX_PARAMETERS) { /* Bail out completely to make the error more obvious */ return TRIO_ERROR_RETURN(TRIO_ETOOMANY, offset); } indices[workParameter.position] = pos; /* Count the number of times this entry has been used */ usedEntries[workParameter.position] += 1; /* Find last sticky parameters */ #if TRIO_FEATURE_STICKY if (workParameter.flags & FLAGS_STICKY) { gotSticky = TRUE; } else if (gotSticky) { for (i = pos - 1; i >= 0; i--) { if (parameters[i].type == FORMAT_PARAMETER) continue; if ((parameters[i].flags & FLAGS_STICKY) && (parameters[i].type == workParameter.type)) { /* Do not overwrite current qualifiers */ workParameter.flags |= (parameters[i].flags & (unsigned long)~FLAGS_STICKY); if (workParameter.width == NO_WIDTH) workParameter.width = parameters[i].width; if (workParameter.precision == NO_PRECISION) workParameter.precision = parameters[i].precision; if (workParameter.base == NO_BASE) workParameter.base = parameters[i].base; break; } } } #endif if (workParameter.base == NO_BASE) workParameter.base = BASE_DECIMAL; offset = workParameter.endOffset; TrioCopyParameter(¶meters[pos++], &workParameter); } /* while format characters left */ parameters[pos].type = FORMAT_SENTINEL; /* end parameter array with sentinel */ parameters[pos].beginOffset = offset; 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_FEATURE_WIDECHAR if (parameters[i].flags & FLAGS_WIDECHAR) { parameters[i].data.wstring = (argfunc == NULL) ? va_arg(arglist, trio_wchar_t*) : (trio_wchar_t*)(argfunc(argarray, num, TRIO_TYPE_PWCHAR)); } else #endif { parameters[i].data.string = (argfunc == NULL) ? va_arg(arglist, char*) : (char*)(argfunc(argarray, num, TRIO_TYPE_PCHAR)); } break; #if TRIO_FEATURE_USER_DEFINED case FORMAT_USER_DEFINED: #endif case FORMAT_POINTER: case FORMAT_COUNT: case FORMAT_UNKNOWN: parameters[i].data.pointer = (argfunc == NULL) ? va_arg(arglist, trio_pointer_t) : argfunc(argarray, num, TRIO_TYPE_POINTER); break; case FORMAT_CHAR: case FORMAT_INT: #if TRIO_FEATURE_SCANF if (TYPE_SCAN == type) { if (argfunc == 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*)argfunc(argarray, num, TRIO_TYPE_CHAR)); else if (parameters[i].flags & FLAGS_SHORT) parameters[i].data.pointer = (trio_pointer_t)((short*)argfunc(argarray, num, TRIO_TYPE_SHORT)); else parameters[i].data.pointer = (trio_pointer_t)((int*)argfunc(argarray, num, TRIO_TYPE_INT)); } } else #endif /* TRIO_FEATURE_SCANF */ { #if TRIO_FEATURE_VARSIZE || TRIO_FEATURE_FIXED_SIZE if (parameters[i].flags & (FLAGS_VARSIZE_PARAMETER | FLAGS_FIXED_SIZE)) { int varsize; 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 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 TRIO_FEATURE_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 /* TRIO_FEATURE_VARSIZE */ #if TRIO_FEATURE_SIZE_T || TRIO_FEATURE_SIZE_T_UPPER if (parameters[i].flags & FLAGS_SIZE_T) parameters[i].data.number.as_unsigned = (argfunc == NULL) ? (trio_uintmax_t)va_arg(arglist, size_t) : (trio_uintmax_t)( *((size_t*)argfunc(argarray, num, TRIO_TYPE_SIZE))); else #endif #if TRIO_FEATURE_PTRDIFF_T if (parameters[i].flags & FLAGS_PTRDIFF_T) parameters[i].data.number.as_unsigned = (argfunc == NULL) ? (trio_uintmax_t)va_arg(arglist, ptrdiff_t) : (trio_uintmax_t)( *((ptrdiff_t*)argfunc(argarray, num, TRIO_TYPE_PTRDIFF))); else #endif #if TRIO_FEATURE_INTMAX_T if (parameters[i].flags & FLAGS_INTMAX_T) parameters[i].data.number.as_unsigned = (argfunc == NULL) ? (trio_uintmax_t)va_arg(arglist, trio_intmax_t) : (trio_uintmax_t)( *((trio_intmax_t*)argfunc(argarray, num, TRIO_TYPE_UINTMAX))); else #endif if (parameters[i].flags & FLAGS_QUAD) parameters[i].data.number.as_unsigned = (argfunc == NULL) ? (trio_uintmax_t)va_arg(arglist, trio_ulonglong_t) : (trio_uintmax_t)(*((trio_ulonglong_t*)argfunc( argarray, num, TRIO_TYPE_ULONGLONG))); else if (parameters[i].flags & FLAGS_LONG) parameters[i].data.number.as_unsigned = (argfunc == NULL) ? (trio_uintmax_t)va_arg(arglist, long) : (trio_uintmax_t)(*( (long*)argfunc(argarray, num, TRIO_TYPE_LONG))); else { if (argfunc == 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*)argfunc(argarray, num, TRIO_TYPE_CHAR))); else if (parameters[i].flags & FLAGS_SHORT) parameters[i].data.number.as_unsigned = (trio_uintmax_t)( *((short*)argfunc(argarray, num, TRIO_TYPE_SHORT))); else parameters[i].data.number.as_unsigned = (trio_uintmax_t)( *((int*)argfunc(argarray, num, TRIO_TYPE_INT))); } } } 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 = (argfunc == NULL) ? va_arg(arglist, trio_pointer_t) : argfunc(argarray, num, TRIO_TYPE_POINTER); else parameters[i].data.number.as_unsigned = (argfunc == NULL) ? (trio_uintmax_t)va_arg(arglist, int) : (trio_uintmax_t)(*((int*)argfunc(argarray, num, TRIO_TYPE_INT))); break; #if TRIO_FEATURE_FLOAT case FORMAT_DOUBLE: #if TRIO_FEATURE_SCANF if (TYPE_SCAN == type) { if (parameters[i].flags & FLAGS_LONGDOUBLE) parameters[i].data.longdoublePointer = (argfunc == NULL) ? va_arg(arglist, trio_long_double_t*) : (trio_long_double_t*)argfunc(argarray, num, TRIO_TYPE_LONGDOUBLE); else { if (parameters[i].flags & FLAGS_LONG) parameters[i].data.doublePointer = (argfunc == NULL) ? va_arg(arglist, double*) : (double*)argfunc(argarray, num, TRIO_TYPE_DOUBLE); else parameters[i].data.doublePointer = (argfunc == NULL) ? (double*)va_arg(arglist, float*) : (double*)argfunc(argarray, num, TRIO_TYPE_DOUBLE); } } else #endif /* TRIO_FEATURE_SCANF */ { if (parameters[i].flags & FLAGS_LONGDOUBLE) parameters[i].data.longdoubleNumber = (argfunc == NULL) ? va_arg(arglist, trio_long_double_t) : (trio_long_double_t)(*((trio_long_double_t*)argfunc( argarray, num, TRIO_TYPE_LONGDOUBLE))); else { if (argfunc == 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*)argfunc(argarray, num, TRIO_TYPE_FLOAT))); else parameters[i].data.longdoubleNumber = (trio_long_double_t)( *((double*)argfunc(argarray, num, TRIO_TYPE_DOUBLE))); } } } break; #endif /* TRIO_FEATURE_FLOAT */ #if TRIO_FEATURE_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, trio_flags_t flags, int width, int precision, int base) { BOOLEAN_T isNegative; BOOLEAN_T isNumberZero; BOOLEAN_T isPrecisionZero; BOOLEAN_T ignoreNumber; char buffer[MAX_CHARS_IN(trio_uintmax_t) * (1 + MAX_LOCALE_SEPARATOR_LENGTH) + 1]; char* bufferend; char* pointer; TRIO_CONST char* digits; int i; #if TRIO_FEATURE_QUOTE int length; char* p; #endif int count; int digitOffset; 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; isNumberZero = (number == 0); isPrecisionZero = (precision == 0); ignoreNumber = (isNumberZero && isPrecisionZero && !((flags & FLAGS_ALTERNATIVE) && (base == BASE_OCTAL))); if (flags & FLAGS_UNSIGNED) { isNegative = FALSE; flags &= ~FLAGS_SHOWSIGN; } else { isNegative = ((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++) { digitOffset = number % base; *pointer-- = digits[digitOffset]; number /= base; if (number == 0) break; #if TRIO_FEATURE_QUOTE 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--; } } #endif } if (!ignoreNumber) { /* Adjust width */ width -= (bufferend - pointer) - 1; } /* Adjust precision */ if (NO_PRECISION != precision) { precision -= (bufferend - pointer) - 1; if (precision < 0) precision = 0; flags |= FLAGS_NILPADDING; } /* Calculate padding */ count = (!((flags & FLAGS_LEFTADJUST) || (precision == NO_PRECISION))) ? precision : 0; /* Adjust width further */ if (isNegative || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE)) width--; if ((flags & FLAGS_ALTERNATIVE) && !isNumberZero) { switch (base) { case BASE_BINARY: case BASE_HEX: width -= 2; break; case BASE_OCTAL: if (!(flags & FLAGS_NILPADDING) || (count == 0)) width--; break; default: break; } } /* Output prefixes spaces if needed */ if (!((flags & FLAGS_LEFTADJUST) || ((flags & FLAGS_NILPADDING) && (precision == NO_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, ' '); /* Prefix is not written when the value is zero */ if ((flags & FLAGS_ALTERNATIVE) && !isNumberZero) { switch (base) { case BASE_BINARY: self->OutStream(self, '0'); self->OutStream(self, (flags & FLAGS_UPPER) ? 'B' : 'b'); break; case BASE_OCTAL: if (!(flags & FLAGS_NILPADDING) || (count == 0)) 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--; } } if (!ignoreNumber) { /* 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, trio_flags_t 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, trio_flags_t flags, int width, int precision) { int length = 0; int ch; assert(VALID(self)); assert(VALID(self->OutStream)); if (string == NULL) { string = internalNullString; length = sizeof(internalNullString) - 1; #if TRIO_FEATURE_QUOTE /* Disable quoting for the null pointer */ flags &= (~FLAGS_QUOTE); #endif width = 0; } else { if (precision <= 0) { length = trio_length(string); } else { length = trio_length_max(string, precision); } } if ((NO_PRECISION != precision) && (precision < length)) { length = precision; } width -= length; #if TRIO_FEATURE_QUOTE if (flags & FLAGS_QUOTE) self->OutStream(self, CHAR_QUOTE); #endif 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 TRIO_FEATURE_QUOTE if (flags & FLAGS_QUOTE) self->OutStream(self, CHAR_QUOTE); #endif } /************************************************************************* * TrioWriteWideStringCharacter * * Description: * Output a wide string as a multi-byte sequence */ #if TRIO_FEATURE_WIDECHAR TRIO_PRIVATE int TrioWriteWideStringCharacter TRIO_ARGS4((self, wch, flags, width), trio_class_t* self, trio_wchar_t wch, trio_flags_t 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_FEATURE_WIDECHAR */ /************************************************************************* * TrioWriteWideString * * Description: * Output a wide character string as a multi-byte string */ #if TRIO_FEATURE_WIDECHAR TRIO_PRIVATE void TrioWriteWideString TRIO_ARGS5((self, wstring, flags, width, precision), trio_class_t* self, TRIO_CONST trio_wchar_t* wstring, trio_flags_t flags, int width, int precision) { int length; int size; assert(VALID(self)); assert(VALID(self->OutStream)); #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) /* Required by TrioWriteWideStringCharacter */ (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 TRIO_FEATURE_QUOTE if (flags & FLAGS_QUOTE) self->OutStream(self, CHAR_QUOTE); #endif 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 TRIO_FEATURE_QUOTE if (flags & FLAGS_QUOTE) self->OutStream(self, CHAR_QUOTE); #endif } #endif /* TRIO_FEATURE_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 * " */ /* FIXME: handle all instances of constant long-double number (L) * and *l() math functions. */ #if TRIO_FEATURE_FLOAT TRIO_PRIVATE void TrioWriteDouble TRIO_ARGS6((self, number, flags, width, precision, base), trio_class_t* self, trio_long_double_t number, trio_flags_t 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 workDigits; 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 dblFractionBase; trio_long_double_t integerAdjust; trio_long_double_t fractionAdjust; trio_long_double_t workFractionNumber; trio_long_double_t workFractionAdjust; int fractionDigitsInspect; BOOLEAN_T isNegative; BOOLEAN_T isExponentNegative = FALSE; BOOLEAN_T requireTwoDigitExponent; BOOLEAN_T isHex; TRIO_CONST char* digits; #if TRIO_FEATURE_QUOTE char* groupingPointer; #endif int i; int offset; BOOLEAN_T hasOnlyZeroes; int leadingFractionZeroes = -1; register int trailingZeroes; BOOLEAN_T keepTrailingZeroes; BOOLEAN_T keepDecimalPoint; trio_long_double_t epsilon; BOOLEAN_T adjustNumber = FALSE; 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)trio_floor(LDBL_MANT_DIG / TrioLogarithmBase(base)); epsilon = LDBL_EPSILON; } else if (flags & FLAGS_SHORT) { baseDigits = (base == BASE_DECIMAL) ? FLT_DIG : (int)trio_floor(FLT_MANT_DIG / TrioLogarithmBase(base)); epsilon = FLT_EPSILON; } else { baseDigits = (base == BASE_DECIMAL) ? DBL_DIG : (int)trio_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 TRIO_FEATURE_ROUNDING if (flags & FLAGS_ROUNDING) { precision = baseDigits; } #endif if (precision == NO_PRECISION) { if (isHex) { keepTrailingZeroes = FALSE; precision = FLT_MANT_DIG; } else { precision = FLT_DIG; } } if (isNegative) { number = -number; } if (isHex) { flags |= FLAGS_FLOAT_E; } reprocess: if (flags & FLAGS_FLOAT_G) { if (precision == 0) precision = 1; if ((number < TRIO_SUFFIX_LONG(1.0E-4)) || (number >= TrioPower(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 - trio_floor(workNumber) < epsilon) workNumber--; leadingFractionZeroes = (int)trio_floor(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)trio_floor(workNumber); workNumber = number; /* * The expression A * 10^-B is equivalent to A / 10^B but the former * usually gives better accuracy. */ workNumber *= TrioPower(dblBase, (trio_long_double_t)-exponent); if (trio_isinf(workNumber)) { /* * Scaling is done it two steps to avoid problems with subnormal * numbers. */ workNumber /= TrioPower(dblBase, (trio_long_double_t)(exponent / 2)); workNumber /= TrioPower(dblBase, (trio_long_double_t)(exponent - (exponent / 2))); } number = workNumber; isExponentNegative = (exponent < 0); uExponent = (isExponentNegative) ? -exponent : exponent; if (isHex) uExponent *= 4; /* log16(2) */ #if TRIO_FEATURE_QUOTE /* No thousand separators */ flags &= ~FLAGS_QUOTE; #endif } } integerNumber = trio_floor(number); fractionNumber = number - integerNumber; /* * Truncated number. * * Precision is number of significant digits for FLOAT_G and number of * fractional digits for others. */ integerDigits = 1; if (integerNumber > epsilon) { integerDigits += (int)TrioLogarithm(integerNumber, base); } fractionDigits = precision; if (flags & FLAGS_FLOAT_G) { if (leadingFractionZeroes > 0) { fractionDigits += leadingFractionZeroes; } if ((integerNumber > epsilon) || (number <= epsilon)) { fractionDigits -= integerDigits; } } dblFractionBase = TrioPower(base, fractionDigits); if (integerNumber < 1.0) { workNumber = number * dblFractionBase + TRIO_SUFFIX_LONG(0.5); if (trio_floor(number * dblFractionBase) != trio_floor(workNumber)) { adjustNumber = TRUE; /* Remove a leading fraction zero if fraction is rounded up */ if ((int)TrioLogarithm(number * dblFractionBase, base) != (int)TrioLogarithm(workNumber, base)) { --leadingFractionZeroes; } } workNumber /= dblFractionBase; } else { workNumber = number + TRIO_SUFFIX_LONG(0.5) / dblFractionBase; adjustNumber = (trio_floor(number) != trio_floor(workNumber)); } if (adjustNumber) { if ((flags & FLAGS_FLOAT_G) && !(flags & FLAGS_FLOAT_E)) { /* The adjustment may require a change to scientific notation */ if ((workNumber < TRIO_SUFFIX_LONG(1.0E-4)) || (workNumber >= TrioPower(base, (trio_long_double_t)precision))) { /* Use scientific notation */ flags |= FLAGS_FLOAT_E; goto reprocess; } } if (flags & FLAGS_FLOAT_E) { workDigits = 1 + TrioLogarithm(trio_floor(workNumber), base); if (integerDigits == workDigits) { /* Adjust if the same number of digits are used */ number += TRIO_SUFFIX_LONG(0.5) / dblFractionBase; integerNumber = trio_floor(number); fractionNumber = number - integerNumber; } else { /* Adjust if number was rounded up one digit (ie. 0.99 to 1.00) */ exponent++; isExponentNegative = (exponent < 0); uExponent = (isExponentNegative) ? -exponent : exponent; if (isHex) uExponent *= 4; /* log16(2) */ workNumber = (number + TRIO_SUFFIX_LONG(0.5) / dblFractionBase) / dblBase; integerNumber = trio_floor(workNumber); fractionNumber = workNumber - integerNumber; } } else { if (workNumber > 1.0) { /* Adjust if number was rounded up one digit (ie. 99 to 100) */ integerNumber = trio_floor(workNumber); fractionNumber = 0.0; integerDigits = (integerNumber > epsilon) ? 1 + (int)TrioLogarithm(integerNumber, base) : 1; if (flags & FLAGS_FLOAT_G) { if (flags & FLAGS_ALTERNATIVE) { fractionDigits = precision; if ((integerNumber > epsilon) || (number <= epsilon)) { fractionDigits -= integerDigits; } } else { fractionDigits = 0; } } } else { integerNumber = trio_floor(workNumber); fractionNumber = workNumber - integerNumber; if (flags & FLAGS_FLOAT_G) { if (flags & FLAGS_ALTERNATIVE) { fractionDigits = precision; if (leadingFractionZeroes > 0) { fractionDigits += leadingFractionZeroes; } if ((integerNumber > epsilon) || (number <= epsilon)) { fractionDigits -= integerDigits; } } } } } } /* Estimate accuracy */ integerAdjust = fractionAdjust = TRIO_SUFFIX_LONG(0.5); #if TRIO_FEATURE_ROUNDING 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 #endif { integerThreshold = INT_MAX; fractionThreshold = INT_MAX; } /* * Calculate expected width. * sign + integer part + thousands separators + decimal point * + fraction + exponent */ fractionAdjust /= dblFractionBase; hasOnlyZeroes = (trio_floor((fractionNumber + fractionAdjust) * dblFractionBase) < epsilon); keepDecimalPoint = ((flags & FLAGS_ALTERNATIVE) || !((precision == 0) || (!keepTrailingZeroes && hasOnlyZeroes))); expectedWidth = integerDigits + fractionDigits; if (!keepTrailingZeroes) { trailingZeroes = 0; workFractionNumber = fractionNumber; workFractionAdjust = fractionAdjust; fractionDigitsInspect = fractionDigits; if (integerDigits > integerThreshold) { fractionDigitsInspect = 0; } else if (fractionThreshold <= fractionDigits) { fractionDigitsInspect = fractionThreshold + 1; } trailingZeroes = fractionDigits - fractionDigitsInspect; for (i = 0; i < fractionDigitsInspect; i++) { workFractionNumber *= dblBase; workFractionAdjust *= dblBase; workNumber = trio_floor(workFractionNumber + workFractionAdjust); workFractionNumber -= workNumber; offset = (int)trio_fmod(workNumber, dblBase); if (offset == 0) { trailingZeroes++; } else { trailingZeroes = 0; } } expectedWidth -= trailingZeroes; } if (keepDecimalPoint) { expectedWidth += internalDecimalPointLength; } #if TRIO_FEATURE_QUOTE if (flags & FLAGS_QUOTE) { expectedWidth += TrioCalcThousandSeparatorLength(integerDigits); } #endif if (isNegative || (flags & FLAGS_SHOWSIGN) || (flags & FLAGS_SPACE)) { expectedWidth += sizeof("-") - 1; } exponentDigits = 0; if (flags & FLAGS_FLOAT_E) { exponentDigits = (uExponent == 0) ? 1 : (int)trio_ceil(TrioLogarithm((double)(uExponent + 1), (isHex) ? 10 : base)); } requireTwoDigitExponent = ((base == BASE_DECIMAL) && (exponentDigits == 1)); if (exponentDigits > 0) { expectedWidth += exponentDigits; expectedWidth += (requireTwoDigitExponent ? sizeof("E+0") - 1 : 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 */ for (i = 0; i < integerDigits; i++) { workNumber = trio_floor(((integerNumber + integerAdjust) / TrioPower(base, integerDigits - i - 1))); if (i > integerThreshold) { /* Beyond accuracy */ self->OutStream(self, digits[0]); } else { self->OutStream(self, digits[(int)trio_fmod(workNumber, dblBase)]); } #if TRIO_FEATURE_QUOTE if (((flags & (FLAGS_FLOAT_E | FLAGS_QUOTE)) == FLAGS_QUOTE) && TrioFollowedBySeparator(integerDigits - i)) { for (groupingPointer = internalThousandSeparator; *groupingPointer != NIL; groupingPointer++) { self->OutStream(self, *groupingPointer); } } #endif } /* 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 = trio_floor(fractionNumber + fractionAdjust); if (workNumber > fractionNumber) { /* fractionNumber should never become negative */ fractionNumber = 0.0; fractionAdjust = 0.0; } else { fractionNumber -= workNumber; } offset = (int)trio_fmod(workNumber, dblBase); if (offset == 0) { trailingZeroes++; } else { while (trailingZeroes > 0) { /* Not trailing zeroes after all */ self->OutStream(self, digits[0]); trailingZeroes--; } self->OutStream(self, digits[offset]); } } } 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'); if (isHex) base = 10; 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); } } } #endif /* TRIO_FEATURE_FLOAT */ /************************************************************************* * 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) { int i; #if TRIO_FEATURE_ERRNO TRIO_CONST char* string; #endif trio_pointer_t pointer; trio_flags_t flags; int width; int precision; int base; int offset; offset = 0; i = 0; for (;;) { /* Skip the parameter entries */ while (parameters[i].type == FORMAT_PARAMETER) i++; /* Copy non conversion-specifier part of format string */ while (offset < parameters[i].beginOffset) { if (CHAR_IDENTIFIER == format[offset] && CHAR_IDENTIFIER == format[offset + 1]) { data->OutStream(data, CHAR_IDENTIFIER); offset += 2; } else { data->OutStream(data, format[offset++]); } } /* Abort if we reached end of format string */ if (parameters[i].type == FORMAT_SENTINEL) break; /* Ouput parameter */ 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; if (width < 0) { /* * A negative width is the same as the - flag and * a positive width. */ flags |= FLAGS_LEFTADJUST; flags &= ~FLAGS_NILPADDING; width = -width; } } /* 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; if (precision < 0) { /* * A negative precision is the same as no * precision */ precision = NO_PRECISION; } } } else { precision = NO_PRECISION; } /* Find base */ if (NO_BASE != parameters[i].baseSpecifier) { /* Base from specifier has priority */ base = parameters[i].baseSpecifier; } else if (flags & FLAGS_BASE_PARAMETER) { /* Get base from parameter list */ base = parameters[i].base; base = (int)parameters[base].data.number.as_signed; } else { /* Use base from format string */ base = parameters[i].base; } switch (parameters[i].type) { case FORMAT_CHAR: #if TRIO_FEATURE_QUOTE if (flags & FLAGS_QUOTE) data->OutStream(data, CHAR_QUOTE); #endif if (!(flags & FLAGS_LEFTADJUST)) { while (--width > 0) data->OutStream(data, CHAR_ADJUST); } #if TRIO_FEATURE_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 TRIO_FEATURE_QUOTE if (flags & FLAGS_QUOTE) data->OutStream(data, CHAR_QUOTE); #endif break; /* FORMAT_CHAR */ case FORMAT_INT: TrioWriteNumber(data, parameters[i].data.number.as_unsigned, flags, width, precision, base); break; /* FORMAT_INT */ #if TRIO_FEATURE_FLOAT case FORMAT_DOUBLE: TrioWriteDouble(data, parameters[i].data.longdoubleNumber, flags, width, precision, base); break; /* FORMAT_DOUBLE */ #endif case FORMAT_STRING: #if TRIO_FEATURE_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->actually.committed */ #if TRIO_FEATURE_SIZE_T || TRIO_FEATURE_SIZE_T_UPPER if (flags & FLAGS_SIZE_T) *(size_t*)pointer = (size_t)data->actually.committed; else #endif #if TRIO_FEATURE_PTRDIFF_T if (flags & FLAGS_PTRDIFF_T) *(ptrdiff_t*)pointer = (ptrdiff_t)data->actually.committed; else #endif #if TRIO_FEATURE_INTMAX_T if (flags & FLAGS_INTMAX_T) *(trio_intmax_t*)pointer = (trio_intmax_t)data->actually.committed; else #endif if (flags & FLAGS_QUAD) { *(trio_ulonglong_t*)pointer = (trio_ulonglong_t)data->actually.committed; } else if (flags & FLAGS_LONG) { *(long int*)pointer = (long int)data->actually.committed; } else if (flags & FLAGS_SHORT) { *(short int*)pointer = (short int)data->actually.committed; } else { *(int*)pointer = (int)data->actually.committed; } } break; /* FORMAT_COUNT */ case FORMAT_PARAMETER: break; /* FORMAT_PARAMETER */ #if TRIO_FEATURE_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 /* TRIO_FEATURE_ERRNO */ #if TRIO_FEATURE_USER_DEFINED case FORMAT_USER_DEFINED: { trio_reference_t reference; trio_userdef_t* def = NULL; if (parameters[i].flags & FLAGS_USER_DEFINED_PARAMETER) { /* 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_defined.namespace, NULL); } if (def) { reference.data = data; reference.parameter = ¶meters[i]; def->callback(&reference); } } break; #endif /* TRIO_FEATURE_USER_DEFINED */ default: break; } /* switch parameter type */ /* Prepare for next */ offset = parameters[i].endOffset; i++; } return data->processed; } /************************************************************************* * TrioFormatRef */ #if TRIO_EXTENSION TRIO_PRIVATE int TrioFormatRef TRIO_ARGS5((reference, format, arglist, argfunc, argarray), trio_reference_t* reference, TRIO_CONST char* format, va_list arglist, trio_argfunc_t argfunc, trio_pointer_t* argarray) { int status; trio_parameter_t parameters[MAX_PARAMETERS]; status = TrioParse(TYPE_PRINT, format, parameters, arglist, argfunc, argarray); if (status < 0) return status; status = TrioFormatProcess(reference->data, format, parameters); if (reference->data->error != 0) { status = reference->data->error; } return status; } #endif /* TRIO_EXTENSION */ /************************************************************************* * TrioFormat */ TRIO_PRIVATE int TrioFormat TRIO_ARGS7((destination, destinationSize, OutStream, format, arglist, argfunc, argarray), trio_pointer_t destination, size_t destinationSize, void(*OutStream) TRIO_PROTO((trio_class_t*, int)), TRIO_CONST char* format, va_list arglist, trio_argfunc_t argfunc, 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, argfunc, argarray); if (status < 0) return status; status = TrioFormatProcess(&data, format, parameters); if (data.error != 0) { status = data.error; } return status; } /************************************************************************* * TrioOutStreamFile */ #if TRIO_FEATURE_FILE || TRIO_FEATURE_STDIO 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->actually.committed++; } } #endif /* TRIO_FEATURE_FILE || TRIO_FEATURE_STDIO */ /************************************************************************* * TrioOutStreamFileDescriptor */ #if TRIO_FEATURE_FD 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->actually.committed++; } } #endif /* TRIO_FEATURE_FD */ /************************************************************************* * TrioOutStreamCustom */ #if TRIO_FEATURE_CLOSURE 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->actually.committed++; } else { if (self->error == 0) { self->error = TRIO_ERROR_RETURN(TRIO_ECUSTOM, -status); } } } self->processed++; } #endif /* TRIO_FEATURE_CLOSURE */ /************************************************************************* * 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->actually.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->actually.committed++; } self->processed++; } /************************************************************************* * TrioOutStreamStringDynamic */ #if TRIO_FEATURE_DYNAMICSTRING 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->actually.committed++; } /* The processed variable must always be increased */ self->processed++; } #endif /* TRIO_FEATURE_DYNAMICSTRING */ /************************************************************************* * TrioArrayGetter */ static trio_pointer_t TrioArrayGetter(trio_pointer_t context, int index, int type) { /* Utility function for the printfv family */ trio_pointer_t* argarray = (trio_pointer_t*)context; return argarray[index]; } /************************************************************************* * * Formatted printing functions * ************************************************************************/ /** @addtogroup Printf @{ */ /************************************************************************* * printf */ /** Print to standard output stream. @param format Formatting string. @param ... Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_STDIO 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, NULL); TRIO_VA_END(args); return status; } #endif /* TRIO_FEATURE_STDIO */ /** Print to standard output stream. @param format Formatting string. @param args Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_STDIO 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, NULL); } #endif /* TRIO_FEATURE_STDIO */ /** Print to standard output stream. @param format Formatting string. @param args Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_STDIO TRIO_PUBLIC int trio_printfv TRIO_ARGS2((format, args), TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; assert(VALID(format)); return TrioFormat(stdout, 0, TrioOutStreamFile, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_STDIO */ /************************************************************************* * fprintf */ /** Print to file. @param file File pointer. @param format Formatting string. @param ... Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_FILE 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, NULL); TRIO_VA_END(args); return status; } #endif /* TRIO_FEATURE_FILE */ /** Print to file. @param file File pointer. @param format Formatting string. @param args Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_FILE 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, NULL); } #endif /* TRIO_FEATURE_FILE */ /** Print to file. @param file File pointer. @param format Formatting string. @param args Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_FILE TRIO_PUBLIC int trio_fprintfv TRIO_ARGS3((file, format, args), FILE* file, TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; assert(VALID(file)); assert(VALID(format)); return TrioFormat(file, 0, TrioOutStreamFile, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_FILE */ /************************************************************************* * dprintf */ /** Print to file descriptor. @param fd File descriptor. @param format Formatting string. @param ... Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_FD 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, NULL); TRIO_VA_END(args); return status; } #endif /* TRIO_FEATURE_FD */ /** Print to file descriptor. @param fd File descriptor. @param format Formatting string. @param args Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_FD 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, NULL); } #endif /* TRIO_FEATURE_FD */ /** Print to file descriptor. @param fd File descriptor. @param format Formatting string. @param args Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_FD TRIO_PUBLIC int trio_dprintfv TRIO_ARGS3((fd, format, args), int fd, TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; assert(VALID(format)); return TrioFormat(&fd, 0, TrioOutStreamFileDescriptor, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_FD */ /************************************************************************* * cprintf */ #if TRIO_FEATURE_CLOSURE 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, NULL); TRIO_VA_END(args); return status; } #endif /* TRIO_FEATURE_CLOSURE */ #if TRIO_FEATURE_CLOSURE 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, NULL); } #endif /* TRIO_FEATURE_CLOSURE */ #if TRIO_FEATURE_CLOSURE TRIO_PUBLIC int trio_cprintfv TRIO_ARGS4((stream, closure, format, args), trio_outstream_t stream, trio_pointer_t closure, TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; trio_custom_t data; assert(VALID(stream)); assert(VALID(format)); data.stream.out = stream; data.closure = closure; return TrioFormat(&data, 0, TrioOutStreamCustom, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_CLOSURE */ #if TRIO_FEATURE_CLOSURE && TRIO_FEATURE_ARGFUNC TRIO_PUBLIC int trio_cprintff TRIO_ARGS5((stream, closure, format, argfunc, context), trio_outstream_t stream, trio_pointer_t closure, TRIO_CONST char* format, trio_argfunc_t argfunc, trio_pointer_t context) { static va_list unused; trio_custom_t data; assert(VALID(stream)); assert(VALID(format)); assert(VALID(argfunc)); data.stream.out = stream; data.closure = closure; return TrioFormat(&data, 0, TrioOutStreamCustom, format, unused, argfunc, (trio_pointer_t*)context); } #endif /* TRIO_FEATURE_CLOSURE && TRIO_FEATURE_ARGFUNC */ /************************************************************************* * 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, 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, 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) { static va_list unused; int status; assert(VALID(buffer)); assert(VALID(format)); status = TrioFormat(&buffer, 0, TrioOutStreamString, format, unused, TrioArrayGetter, 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) || (max == 0)); assert(VALID(format)); TRIO_VA_START(args, format); status = TrioFormat(&buffer, max > 0 ? max - 1 : 0, TrioOutStreamStringMax, format, args, NULL, 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) || (max == 0)); assert(VALID(format)); status = TrioFormat(&buffer, max > 0 ? max - 1 : 0, TrioOutStreamStringMax, format, args, NULL, 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) { static va_list unused; int status; assert(VALID(buffer) || (max == 0)); assert(VALID(format)); status = TrioFormat(&buffer, max > 0 ? max - 1 : 0, TrioOutStreamStringMax, format, unused, TrioArrayGetter, 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. */ #if TRIO_EXTENSION 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, NULL); TRIO_VA_END(args); *buffer = NIL; return status; } #endif #if TRIO_EXTENSION 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, NULL); *buffer = NIL; return status; } #endif /************************************************************************* * trio_aprintf */ #if TRIO_DEPRECATED && TRIO_FEATURE_DYNAMICSTRING 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, NULL); TRIO_VA_END(args); trio_string_terminate(info); result = trio_string_extract(info); trio_string_destroy(info); } return result; } #endif /* TRIO_DEPRECATED && TRIO_FEATURE_DYNAMICSTRING */ #if TRIO_DEPRECATED && TRIO_FEATURE_DYNAMICSTRING 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, NULL); trio_string_terminate(info); result = trio_string_extract(info); trio_string_destroy(info); } return result; } #endif /* TRIO_DEPRECATED && TRIO_FEATURE_DYNAMICSTRING */ /** Allocate and print to string. The memory allocated and returned by @p result must be freed by the calling application. @param result Output string. @param format Formatting string. @param ... Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_DYNAMICSTRING 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, NULL); TRIO_VA_END(args); if (status >= 0) { trio_string_terminate(info); *result = trio_string_extract(info); } trio_string_destroy(info); } return status; } #endif /* TRIO_FEATURE_DYNAMICSTRING */ /** Allocate and print to string. The memory allocated and returned by @p result must be freed by the calling application. @param result Output string. @param format Formatting string. @param args Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_DYNAMICSTRING 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, NULL); if (status >= 0) { trio_string_terminate(info); *result = trio_string_extract(info); } trio_string_destroy(info); } return status; } #endif /* TRIO_FEATURE_DYNAMICSTRING */ /** Allocate and print to string. The memory allocated and returned by @p result must be freed by the calling application. @param result Output string. @param format Formatting string. @param args Arguments. @return Number of printed characters. */ #if TRIO_FEATURE_DYNAMICSTRING TRIO_PUBLIC int trio_asprintfv TRIO_ARGS3((result, format, args), char** result, TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; 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, unused, TrioArrayGetter, args); if (status >= 0) { trio_string_terminate(info); *result = trio_string_extract(info); } trio_string_destroy(info); } return status; } #endif /* TRIO_FEATURE_DYNAMICSTRING */ #if defined(TRIO_DOCUMENTATION) #include "doc/doc_printf.h" #endif /** @} End of Printf documentation module */ /************************************************************************* * * CALLBACK * ************************************************************************/ #if defined(TRIO_DOCUMENTATION) #include "doc/doc_register.h" #endif /** @addtogroup UserDefined @{ */ #if TRIO_FEATURE_USER_DEFINED /************************************************************************* * 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_max(name, MAX_USER_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 = internalUserDef->next; 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 TRIO_FEATURE_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 TRIO_FEATURE_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) ? TRUE : FALSE; } 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) ? TRUE : FALSE; } 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] */ #if TRIO_FEATURE_FLOAT int trio_get_longdouble TRIO_ARGS1((ref), trio_pointer_t ref) { return (((trio_reference_t*)ref)->parameter->flags & FLAGS_LONGDOUBLE) ? TRUE : FALSE; } 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; } #endif /* TRIO_FEATURE_FLOAT */ /************************************************************************* * 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) ? TRUE : FALSE; } 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) ? TRUE : FALSE; } 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) ? TRUE : FALSE; } 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) ? TRUE : FALSE; } 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) ? TRUE : FALSE; } 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) ? TRUE : FALSE; } 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) ? TRUE : FALSE; } 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] */ #if TRIO_FEATURE_QUOTE int trio_get_quote TRIO_ARGS1((ref), trio_pointer_t ref) { return (((trio_reference_t*)ref)->parameter->flags & FLAGS_QUOTE) ? TRUE : FALSE; } 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; } #endif /* TRIO_FEATURE_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) ? TRUE : FALSE; } 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_FEATURE_INTMAX_T int trio_get_largest TRIO_ARGS1((ref), trio_pointer_t ref) { return (((trio_reference_t*)ref)->parameter->flags & FLAGS_INTMAX_T) ? TRUE : FALSE; } 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_FEATURE_INTMAX_T */ /************************************************************************* * trio_get_ptrdiff / trio_set_ptrdiff [public] */ #if TRIO_FEATURE_PTRDIFF_T int trio_get_ptrdiff TRIO_ARGS1((ref), trio_pointer_t ref) { return (((trio_reference_t*)ref)->parameter->flags & FLAGS_PTRDIFF_T) ? TRUE : FALSE; } 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; } #endif /* TRIO_FEATURE_PTRDIFF_T */ /************************************************************************* * trio_get_size / trio_set_size [public] */ #if TRIO_FEATURE_SIZE_T int trio_get_size TRIO_ARGS1((ref), trio_pointer_t ref) { return (((trio_reference_t*)ref)->parameter->flags & FLAGS_SIZE_T) ? TRUE : FALSE; } 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_FEATURE_SIZE_T */ /************************************************************************* * 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] */ #if TRIO_FEATURE_FLOAT 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); } #endif /* TRIO_FEATURE_FLOAT */ /************************************************************************* * trio_print_string [public] */ void trio_print_string TRIO_ARGS2((ref, string), trio_pointer_t ref, TRIO_CONST 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, 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, 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) { static va_list unused; assert(VALID(format)); return TrioFormatRef((trio_reference_t*)ref, format, unused, TrioArrayGetter, argarray); } #endif /************************************************************************* * 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; trio_flags_t 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. */ #if TRIO_FEATURE_LOCALE 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); } } #endif /************************************************************************* * trio_locale_set_thousand_separator * * See trio_locale_set_decimal_point */ #if TRIO_FEATURE_LOCALE || TRIO_EXTENSION 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); } #endif /************************************************************************* * 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. */ #if TRIO_FEATURE_LOCALE || TRIO_EXTENSION 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); } #endif /************************************************************************* * * SCANNING * ************************************************************************/ #if TRIO_FEATURE_SCANF /************************************************************************* * 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 computationally 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, offsetPointer, flagsPointer, characterclass), TRIO_CONST char* format, int* offsetPointer, trio_flags_t* flagsPointer, int* characterclass) { int offset = *offsetPointer; int i; char ch; char range_begin; char range_end; *flagsPointer &= ~FLAGS_EXCLUDE; if (format[offset] == QUALIFIER_CIRCUMFLEX) { *flagsPointer |= FLAGS_EXCLUDE; offset++; } /* * 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[offset] == SPECIFIER_UNGROUP) { characterclass[(int)SPECIFIER_UNGROUP]++; offset++; } /* * Minus is used to specify ranges. To include minus in the class, * it must be at the beginning of the list */ if (format[offset] == QUALIFIER_MINUS) { characterclass[(int)QUALIFIER_MINUS]++; offset++; } /* Collect characters */ for (ch = format[offset]; (ch != SPECIFIER_UNGROUP) && (ch != NIL); ch = format[++offset]) { 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[offset - 1]; range_end = format[++offset]; 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, offset); if (range_begin > range_end) return TRIO_ERROR_RETURN(TRIO_ERANGE, offset); for (i = (int)range_begin; i <= (int)range_end; i++) characterclass[i]++; ch = range_end; break; #if TRIO_EXTENSION case SPECIFIER_GROUP: switch (format[offset + 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 = offset + 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; offset = 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 = offset + 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; offset = i; } break; case QUALIFIER_COLON: /* Character class expressions */ if (trio_equal_max(CLASS_ALNUM, sizeof(CLASS_ALNUM) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (isalnum(i)) characterclass[i]++; offset += sizeof(CLASS_ALNUM) - 1; } else if (trio_equal_max(CLASS_ALPHA, sizeof(CLASS_ALPHA) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (isalpha(i)) characterclass[i]++; offset += sizeof(CLASS_ALPHA) - 1; } else if (trio_equal_max(CLASS_CNTRL, sizeof(CLASS_CNTRL) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (iscntrl(i)) characterclass[i]++; offset += sizeof(CLASS_CNTRL) - 1; } else if (trio_equal_max(CLASS_DIGIT, sizeof(CLASS_DIGIT) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (isdigit(i)) characterclass[i]++; offset += sizeof(CLASS_DIGIT) - 1; } else if (trio_equal_max(CLASS_GRAPH, sizeof(CLASS_GRAPH) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (isgraph(i)) characterclass[i]++; offset += sizeof(CLASS_GRAPH) - 1; } else if (trio_equal_max(CLASS_LOWER, sizeof(CLASS_LOWER) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (islower(i)) characterclass[i]++; offset += sizeof(CLASS_LOWER) - 1; } else if (trio_equal_max(CLASS_PRINT, sizeof(CLASS_PRINT) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (isprint(i)) characterclass[i]++; offset += sizeof(CLASS_PRINT) - 1; } else if (trio_equal_max(CLASS_PUNCT, sizeof(CLASS_PUNCT) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (ispunct(i)) characterclass[i]++; offset += sizeof(CLASS_PUNCT) - 1; } else if (trio_equal_max(CLASS_SPACE, sizeof(CLASS_SPACE) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (isspace(i)) characterclass[i]++; offset += sizeof(CLASS_SPACE) - 1; } else if (trio_equal_max(CLASS_UPPER, sizeof(CLASS_UPPER) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (isupper(i)) characterclass[i]++; offset += sizeof(CLASS_UPPER) - 1; } else if (trio_equal_max(CLASS_XDIGIT, sizeof(CLASS_XDIGIT) - 1, &format[offset])) { for (i = 0; i < MAX_CHARACTER_CLASS; i++) if (isxdigit(i)) characterclass[i]++; offset += 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, trio_flags_t 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); /* 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) && (trio_to_upper(self->current) == 'X')) { self->InStream(self, NULL); } else if ((base == BASE_BINARY) && (trio_to_upper(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; } #if TRIO_FEATURE_QUOTE 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 */ } #endif 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_uintmax_t)(-((trio_intmax_t)number)) : number; return TRUE; } /************************************************************************* * TrioReadChar */ TRIO_PRIVATE int TrioReadChar TRIO_ARGS4((self, target, flags, width), trio_class_t* self, char* target, trio_flags_t 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 (trio_to_upper(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, trio_flags_t 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_FEATURE_WIDECHAR TRIO_PRIVATE int TrioReadWideChar TRIO_ARGS4((self, target, flags, width), trio_class_t* self, trio_wchar_t* target, trio_flags_t 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_FEATURE_WIDECHAR */ /************************************************************************* * TrioReadWideString */ #if TRIO_FEATURE_WIDECHAR TRIO_PRIVATE BOOLEAN_T TrioReadWideString TRIO_ARGS4((self, target, flags, width), trio_class_t* self, trio_wchar_t* target, trio_flags_t flags, int width) { int i; int size; assert(VALID(self)); assert(VALID(self->InStream)); TrioSkipWhitespaces(self); #if defined(TRIO_COMPILER_SUPPORTS_MULTIBYTE) /* Required by TrioReadWideChar */ (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_FEATURE_WIDECHAR */ /************************************************************************* * TrioReadGroup * * Reads non-empty character groups. * * 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, trio_flags_t 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 (i == 0) return FALSE; /* Terminate the string if input saved */ if (target) target[i] = NIL; return TRUE; } /************************************************************************* * TrioReadDouble * * FIXME: * add long double * handle base */ #if TRIO_FEATURE_FLOAT TRIO_PRIVATE BOOLEAN_T TrioReadDouble TRIO_ARGS4((self, target, flags, width), trio_class_t* self, trio_pointer_t target, trio_flags_t flags, int width) { int ch; char doubleString[512]; int offset = 0; int start; #if TRIO_FEATURE_QUOTE int j; #endif BOOLEAN_T isHex = FALSE; trio_long_double_t infinity; 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[offset++] = (char)ch; self->InStream(self, &ch); width--; } start = offset; switch (ch) { case 'n': case 'N': /* Not-a-number */ if (offset != 0) break; /* FALLTHROUGH */ case 'i': case 'I': /* Infinity */ while (isalpha(ch) && (offset - start < width)) { doubleString[offset++] = (char)ch; self->InStream(self, &ch); } doubleString[offset] = NIL; /* Case insensitive string comparison */ if (trio_equal(&doubleString[start], INFINITE_UPPER) || trio_equal(&doubleString[start], LONG_INFINITE_UPPER)) { infinity = ((start == 1) && (doubleString[0] == '-')) ? trio_ninf() : trio_pinf(); if (!target) return FALSE; if (flags & FLAGS_LONGDOUBLE) { *((trio_long_double_t*)target) = infinity; } else if (flags & FLAGS_LONG) { *((double*)target) = infinity; } else { *((float*)target) = infinity; } return TRUE; } if (trio_equal(doubleString, NAN_UPPER)) { if (!target) return FALSE; /* NaN must not have a preceeding + nor - */ if (flags & FLAGS_LONGDOUBLE) { *((trio_long_double_t*)target) = trio_nan(); } else if (flags & FLAGS_LONG) { *((double*)target) = trio_nan(); } else { *((float*)target) = trio_nan(); } return TRUE; } return FALSE; case '0': doubleString[offset++] = (char)ch; self->InStream(self, &ch); if (trio_to_upper(ch) == 'X') { isHex = TRUE; doubleString[offset++] = (char)ch; self->InStream(self, &ch); } break; default: break; } while ((ch != EOF) && (offset - start < width)) { /* Integer part */ if (isHex ? isxdigit(ch) : isdigit(ch)) { doubleString[offset++] = (char)ch; self->InStream(self, &ch); } #if TRIO_FEATURE_QUOTE 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 */ } #endif else break; /* while */ } if (ch == '.') { /* Decimal part */ doubleString[offset++] = (char)ch; self->InStream(self, &ch); while ((isHex ? isxdigit(ch) : isdigit(ch)) && (offset - start < width)) { doubleString[offset++] = (char)ch; self->InStream(self, &ch); } } if (isHex ? (trio_to_upper(ch) == 'P') : (trio_to_upper(ch) == 'E')) { /* Exponent */ doubleString[offset++] = (char)ch; self->InStream(self, &ch); if ((ch == '+') || (ch == '-')) { doubleString[offset++] = (char)ch; self->InStream(self, &ch); } while (isdigit(ch) && (offset - start < width)) { doubleString[offset++] = (char)ch; self->InStream(self, &ch); } } if ((offset == start) || (*doubleString == NIL)) return FALSE; doubleString[offset] = 0; if (flags & FLAGS_LONGDOUBLE) { if (!target) return FALSE; *((trio_long_double_t*)target) = trio_to_long_double(doubleString, NULL); } else if (flags & FLAGS_LONG) { if (!target) return FALSE; *((double*)target) = trio_to_double(doubleString, NULL); } else { if (!target) return FALSE; *((float*)target) = trio_to_float(doubleString, NULL); } return TRUE; } #endif /* TRIO_FEATURE_FLOAT */ /************************************************************************* * TrioReadPointer */ TRIO_PRIVATE BOOLEAN_T TrioReadPointer TRIO_ARGS3((self, target, flags), trio_class_t* self, trio_pointer_t* target, trio_flags_t 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)) { if (target) { #if defined(TRIO_COMPILER_GCC) || defined(TRIO_COMPILER_MIPSPRO) /* * The strange assignment of number is a workaround for a compiler * warning */ *target = &((char*)0)[number]; #else *target = (trio_pointer_t)number; #endif } 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) { int status; int assignment; int ch; int offset; /* Offset of format string */ int i; /* Offset of current parameter */ trio_flags_t flags; int width; int base; trio_pointer_t pointer; /* Return on empty format string */ if (format[0] == NIL) return 0; status = 0; assignment = 0; i = 0; offset = 0; data->InStream(data, &ch); for (;;) { /* Skip the parameter entries */ while (parameters[i].type == FORMAT_PARAMETER) { assert(i <= MAX_PARAMETERS); i++; } /* Compare non conversion-specifier part of format string */ while (offset < parameters[i].beginOffset) { if ((CHAR_IDENTIFIER == format[offset]) && (CHAR_IDENTIFIER == format[offset + 1])) { /* Two % in format matches one % in input stream */ if (CHAR_IDENTIFIER == ch) { data->InStream(data, &ch); offset += 2; continue; /* while format chars left */ } else { status = TRIO_ERROR_RETURN(TRIO_EINVAL, offset); goto end; } } else /* Not an % identifier */ { if (isspace((int)format[offset])) { /* Whitespaces may match any amount of whitespaces */ ch = TrioSkipWhitespaces(data); } else if (ch == format[offset]) { data->InStream(data, &ch); } else { status = assignment; goto end; } offset++; } } if (parameters[i].type == FORMAT_SENTINEL) break; if ((EOF == ch) && (parameters[i].type != FORMAT_COUNT)) { status = (assignment > 0) ? assignment : EOF; goto end; } 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 */ if (NO_BASE != parameters[i].baseSpecifier) { /* Base from specifier has priority */ base = parameters[i].baseSpecifier; } else if (flags & FLAGS_BASE_PARAMETER) { /* Get base from parameter list */ base = parameters[i].base; base = (int)parameters[base].data.number.as_signed; } else { /* Use base from format string */ base = parameters[i].base; } switch (parameters[i].type) { case FORMAT_INT: { trio_uintmax_t number; if (0 == base) base = BASE_DECIMAL; if (!TrioReadNumber(data, &number, flags, width, base)) { status = assignment; goto end; } if (!(flags & FLAGS_IGNORE)) { assignment++; pointer = parameters[i].data.pointer; #if TRIO_FEATURE_SIZE_T || TRIO_FEATURE_SIZE_T_UPPER if (flags & FLAGS_SIZE_T) *(size_t*)pointer = (size_t)number; else #endif #if TRIO_FEATURE_PTRDIFF_T if (flags & FLAGS_PTRDIFF_T) *(ptrdiff_t*)pointer = (ptrdiff_t)number; else #endif #if TRIO_FEATURE_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_FEATURE_WIDECHAR if (flags & FLAGS_WIDECHAR) { if (!TrioReadWideString( data, (flags & FLAGS_IGNORE) ? NULL : parameters[i].data.wstring, flags, width)) { status = assignment; goto end; } } else #endif { if (!TrioReadString(data, (flags & FLAGS_IGNORE) ? NULL : parameters[i].data.string, flags, width)) { status = assignment; goto end; } } if (!(flags & FLAGS_IGNORE)) assignment++; break; /* FORMAT_STRING */ #if TRIO_FEATURE_FLOAT case FORMAT_DOUBLE: { 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)) { status = assignment; goto end; } if (!(flags & FLAGS_IGNORE)) { assignment++; } break; /* FORMAT_DOUBLE */ } #endif case FORMAT_GROUP: { int characterclass[MAX_CHARACTER_CLASS + 1]; /* Skip over modifiers */ while (format[offset] != SPECIFIER_GROUP) { offset++; } /* Skip over group specifier */ offset++; memset(characterclass, 0, sizeof(characterclass)); status = TrioGetCharacterClass(format, &offset, &flags, characterclass); if (status < 0) goto end; if (!TrioReadGroup(data, (flags & FLAGS_IGNORE) ? NULL : parameters[i].data.string, characterclass, flags, parameters[i].width)) { status = assignment; goto end; } if (!(flags & FLAGS_IGNORE)) assignment++; } break; /* FORMAT_GROUP */ case FORMAT_COUNT: pointer = parameters[i].data.pointer; if (NULL != pointer) { int count = data->processed; if (ch != EOF) count--; /* a character is read, but is not consumed yet */ #if TRIO_FEATURE_SIZE_T || TRIO_FEATURE_SIZE_T_UPPER if (flags & FLAGS_SIZE_T) *(size_t*)pointer = (size_t)count; else #endif #if TRIO_FEATURE_PTRDIFF_T if (flags & FLAGS_PTRDIFF_T) *(ptrdiff_t*)pointer = (ptrdiff_t)count; else #endif #if TRIO_FEATURE_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_FEATURE_WIDECHAR if (flags & FLAGS_WIDECHAR) { if (TrioReadWideChar(data, (flags & FLAGS_IGNORE) ? NULL : parameters[i].data.wstring, flags, (width == NO_WIDTH) ? 1 : width) == 0) { status = assignment; goto end; } } else #endif { if (TrioReadChar(data, (flags & FLAGS_IGNORE) ? NULL : parameters[i].data.string, flags, (width == NO_WIDTH) ? 1 : width) == 0) { status = assignment; goto end; } } 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)) { status = assignment; goto end; } if (!(flags & FLAGS_IGNORE)) assignment++; break; /* FORMAT_POINTER */ case FORMAT_PARAMETER: break; /* FORMAT_PARAMETER */ default: status = TRIO_ERROR_RETURN(TRIO_EINVAL, offset); goto end; } ch = data->current; offset = parameters[i].endOffset; i++; } status = assignment; end: if (data->UndoStream) data->UndoStream(data); return status; } /************************************************************************* * TrioScan */ TRIO_PRIVATE int TrioScan TRIO_ARGS8( (source, sourceSize, InStream, UndoStream, format, arglist, argfunc, argarray), trio_pointer_t source, size_t sourceSize, void(*InStream) TRIO_PROTO((trio_class_t*, int*)), void(*UndoStream) TRIO_PROTO((trio_class_t*)), TRIO_CONST char* format, va_list arglist, trio_argfunc_t argfunc, 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.UndoStream = UndoStream; 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, argfunc, argarray); if (status < 0) return status; status = TrioScanProcess(&data, format, parameters); if (data.error != 0) { status = data.error; } return status; } /************************************************************************* * TrioInStreamFile */ #if TRIO_FEATURE_FILE || TRIO_FEATURE_STDIO 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->actually.cached = 0; /* The initial value of self->current is zero */ if (self->current == EOF) { self->error = (ferror(file)) ? TRIO_ERROR_RETURN(TRIO_ERRNO, 0) : TRIO_ERROR_RETURN(TRIO_EOF, 0); } else { self->processed++; self->actually.cached++; } self->current = fgetc(file); if (VALID(intPointer)) { *intPointer = self->current; } } #endif /* TRIO_FEATURE_FILE || TRIO_FEATURE_STDIO */ /************************************************************************* * TrioUndoStreamFile */ #if TRIO_FEATURE_FILE || TRIO_FEATURE_STDIO TRIO_PRIVATE void TrioUndoStreamFile TRIO_ARGS1((self), trio_class_t* self) { FILE* file = (FILE*)self->location; assert(VALID(self)); assert(VALID(file)); if (self->actually.cached > 0) { assert(self->actually.cached == 1); self->current = ungetc(self->current, file); self->actually.cached = 0; } } #endif /* TRIO_FEATURE_FILE || TRIO_FEATURE_STDIO */ /************************************************************************* * TrioInStreamFileDescriptor */ #if TRIO_FEATURE_FD 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)); self->actually.cached = 0; 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->actually.cached++; self->processed++; } if (VALID(intPointer)) { *intPointer = self->current; } } #endif /* TRIO_FEATURE_FD */ /************************************************************************* * TrioInStreamCustom */ #if TRIO_FEATURE_CLOSURE 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)); self->actually.cached = 0; 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->actually.cached++; } if (VALID(intPointer)) { *intPointer = self->current; } } #endif /* TRIO_FEATURE_CLOSURE */ /************************************************************************* * 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)); self->actually.cached = 0; buffer = (unsigned char**)self->location; self->current = (*buffer)[0]; if (self->current == NIL) { self->current = EOF; } else { (*buffer)++; self->processed++; self->actually.cached++; } 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. */ #if TRIO_FEATURE_STDIO 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, TrioUndoStreamFile, format, args, NULL, NULL); TRIO_VA_END(args); return status; } #endif /* TRIO_FEATURE_STDIO */ /** Scan characters from standard input stream. @param format Formatting string. @param args Arguments. @return Number of scanned characters. */ #if TRIO_FEATURE_STDIO 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, TrioUndoStreamFile, format, args, NULL, NULL); } #endif /* TRIO_FEATURE_STDIO */ /** Scan characters from standard input stream. @param format Formatting string. @param args Arguments. @return Number of scanned characters. */ #if TRIO_FEATURE_STDIO TRIO_PUBLIC int trio_scanfv TRIO_ARGS2((format, args), TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; assert(VALID(format)); return TrioScan((trio_pointer_t)stdin, 0, TrioInStreamFile, TrioUndoStreamFile, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_STDIO */ /************************************************************************* * fscanf */ /** Scan characters from file. @param file File pointer. @param format Formatting string. @param ... Arguments. @return Number of scanned characters. */ #if TRIO_FEATURE_FILE 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, TrioUndoStreamFile, format, args, NULL, NULL); TRIO_VA_END(args); return status; } #endif /* TRIO_FEATURE_FILE */ /** Scan characters from file. @param file File pointer. @param format Formatting string. @param args Arguments. @return Number of scanned characters. */ #if TRIO_FEATURE_FILE 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, TrioUndoStreamFile, format, args, NULL, NULL); } #endif /* TRIO_FEATURE_FILE */ /** Scan characters from file. @param file File pointer. @param format Formatting string. @param args Arguments. @return Number of scanned characters. */ #if TRIO_FEATURE_FILE TRIO_PUBLIC int trio_fscanfv TRIO_ARGS3((file, format, args), FILE* file, TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; assert(VALID(file)); assert(VALID(format)); return TrioScan((trio_pointer_t)file, 0, TrioInStreamFile, TrioUndoStreamFile, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_FILE */ /************************************************************************* * dscanf */ /** Scan characters from file descriptor. @param fd File descriptor. @param format Formatting string. @param ... Arguments. @return Number of scanned characters. */ #if TRIO_FEATURE_FD 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, NULL, format, args, NULL, NULL); TRIO_VA_END(args); return status; } #endif /* TRIO_FEATURE_FD */ /** Scan characters from file descriptor. @param fd File descriptor. @param format Formatting string. @param args Arguments. @return Number of scanned characters. */ #if TRIO_FEATURE_FD 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, NULL, format, args, NULL, NULL); } #endif /* TRIO_FEATURE_FD */ /** Scan characters from file descriptor. @param fd File descriptor. @param format Formatting string. @param args Arguments. @return Number of scanned characters. */ #if TRIO_FEATURE_FD TRIO_PUBLIC int trio_dscanfv TRIO_ARGS3((fd, format, args), int fd, TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; assert(VALID(format)); return TrioScan((trio_pointer_t)&fd, 0, TrioInStreamFileDescriptor, NULL, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_FD */ /************************************************************************* * cscanf */ #if TRIO_FEATURE_CLOSURE 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, NULL, format, args, NULL, NULL); TRIO_VA_END(args); return status; } #endif /* TRIO_FEATURE_CLOSURE */ #if TRIO_FEATURE_CLOSURE 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, NULL, format, args, NULL, NULL); } #endif /* TRIO_FEATURE_CLOSURE */ #if TRIO_FEATURE_CLOSURE 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) { static va_list unused; trio_custom_t data; assert(VALID(stream)); assert(VALID(format)); data.stream.in = stream; data.closure = closure; return TrioScan(&data, 0, TrioInStreamCustom, NULL, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_CLOSURE */ #if TRIO_FEATURE_CLOSURE && TRIO_FEATURE_ARGFUNC TRIO_PUBLIC int trio_cscanff TRIO_ARGS5((stream, closure, format, argfunc, context), trio_instream_t stream, trio_pointer_t closure, TRIO_CONST char* format, trio_argfunc_t argfunc, trio_pointer_t context) { static va_list unused; trio_custom_t data; assert(VALID(stream)); assert(VALID(format)); assert(VALID(argfunc)); data.stream.in = stream; data.closure = closure; return TrioScan(&data, 0, TrioInStreamCustom, NULL, format, unused, argfunc, (trio_pointer_t*)context); } #endif /* TRIO_FEATURE_CLOSURE && TRIO_FEATURE_ARGFUNC */ /************************************************************************* * sscanf */ /** Scan characters from string. @param buffer Input string. @param format Formatting string. @param ... Arguments. @return Number of scanned characters. */ 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, NULL, format, args, NULL, NULL); TRIO_VA_END(args); return status; } /** Scan characters from string. @param buffer Input string. @param format Formatting string. @param args Arguments. @return Number of scanned characters. */ 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, NULL, format, args, NULL, NULL); } /** Scan characters from string. @param buffer Input string. @param format Formatting string. @param args Arguments. @return Number of scanned characters. */ TRIO_PUBLIC int trio_sscanfv TRIO_ARGS3((buffer, format, args), TRIO_CONST char* buffer, TRIO_CONST char* format, trio_pointer_t* args) { static va_list unused; assert(VALID(buffer)); assert(VALID(format)); return TrioScan((trio_pointer_t)&buffer, 0, TrioInStreamString, NULL, format, unused, TrioArrayGetter, args); } #endif /* TRIO_FEATURE_SCANF */ /** @} End of Scanf documentation module */ /************************************************************************* * trio_strerror */ TRIO_PUBLIC TRIO_CONST char* trio_strerror TRIO_ARGS1((errorcode), int errorcode) { #if TRIO_FEATURE_STRERR /* 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"; } #else return "Unknown"; #endif } #ifdef _WIN32 #pragma warning(pop) #endif