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Diffstat (limited to 'intl/icu/source/io/ufmt_cmn.h')
| -rw-r--r-- | intl/icu/source/io/ufmt_cmn.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/intl/icu/source/io/ufmt_cmn.h b/intl/icu/source/io/ufmt_cmn.h new file mode 100644 index 0000000000..d040fdce5a --- /dev/null +++ b/intl/icu/source/io/ufmt_cmn.h @@ -0,0 +1,162 @@ +// © 2016 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html +/* +****************************************************************************** +* +* Copyright (C) 1998-2011, International Business Machines +* Corporation and others. All Rights Reserved. +* +****************************************************************************** +* +* File ufmt_cmn.h +* +* Modification History: +* +* Date Name Description +* 12/02/98 stephen Creation. +* 03/12/99 stephen Modified for new C API. +* 03/15/99 stephen Added defaultCPToUnicode, unicodeToDefaultCP +****************************************************************************** +*/ + +#ifndef UFMT_CMN_H +#define UFMT_CMN_H + +#include "unicode/utypes.h" +#include "unicode/utf16.h" + +#define UFMT_DEFAULT_BUFFER_SIZE 128 +#define MAX_UCHAR_BUFFER_SIZE(buffer) ((int32_t)(sizeof(buffer)/(U16_MAX_LENGTH*sizeof(UChar)))) +#define MAX_UCHAR_BUFFER_NEEDED(strLen) ((strLen+1)*U16_MAX_LENGTH*sizeof(UChar)) + +/** + * Enum representing the possible argument types for uprintf/uscanf + */ +typedef enum ufmt_type_info { + ufmt_empty = 0, + ufmt_simple_percent, /* %% do nothing */ + ufmt_count, /* special flag for count */ + ufmt_int, /* int */ + ufmt_char, /* int, cast to char */ + ufmt_string, /* char* */ + ufmt_pointer, /* void* */ + ufmt_float, /* float */ + ufmt_double, /* double */ + ufmt_uchar, /* int, cast to UChar */ + ufmt_ustring /* UChar* */ + /*ufmt_wchar,*/ /* wchar_t */ + /*ufmt_wstring,*/ /* wchar_t* */ + /*ufmt_date,*/ /* Date */ + /*ufmt_last*/ +} ufmt_type_info; + +/** + * Union representing a uprintf/uscanf argument + */ +typedef union ufmt_args { + int64_t int64Value; /* int, UChar */ + float floatValue; /* float */ + double doubleValue; /* double */ + void *ptrValue; /* any pointer - void*, char*, wchar_t*, UChar* */ + /*wchar_t wcharValue;*/ /* wchar_t */ /* TODO: Should wchar_t be used? */ + /*UDate dateValue;*/ /* Date */ +} ufmt_args; + +/** + * Macro for determining the minimum of two numbers. + * @param a An integer + * @param b An integer + * @return <TT>a</TT> if </TT>a < b</TT>, <TT>b</TT> otherwise + */ +#define ufmt_min(a,b) ((a) < (b) ? (a) : (b)) + +/** + * Convert a UChar in hex radix to an integer value. + * @param c The UChar to convert. + * @return The integer value of <TT>c</TT>. + */ +int +ufmt_digitvalue(UChar c); + +/** + * Determine if a UChar is a digit for a specified radix. + * @param c The UChar to check. + * @param radix The desired radix. + * @return true if <TT>c</TT> is a digit in <TT>radix</TT>, false otherwise. + */ +UBool +ufmt_isdigit(UChar c, + int32_t radix); + +/** + * Convert an int64_t to a UChar* in a specified radix + * @param buffer The target buffer + * @param len On input, the size of <TT>buffer</TT>. On output, + * the number of UChars written to <TT>buffer</TT>. + * @param value The value to be converted + * @param radix The desired radix + * @param uselower true means lower case will be used, false means upper case + * @param minDigits The minimum number of digits for for the formatted number, + * which will be padded with zeroes. -1 means do not pad. + */ +void +ufmt_64tou(UChar *buffer, + int32_t *len, + uint64_t value, + uint8_t radix, + UBool uselower, + int32_t minDigits); + +/** + * It's like ufmt_64tou, but with a pointer. + * This functions avoids size constraints of 64-bit types. + * Pointers can be at 32-128 bits in size. + */ +void +ufmt_ptou(UChar *buffer, + int32_t *len, + void *value, + UBool uselower); + +/** + * Convert a UChar* in a specified radix to an int64_t. + * @param buffer The target buffer + * @param len On input, the size of <TT>buffer</TT>. On output, + * the number of UChars read from <TT>buffer</TT>. + * @param radix The desired radix + * @return The numeric value. + */ +int64_t +ufmt_uto64(const UChar *buffer, + int32_t *len, + int8_t radix); + +/** + * Convert a UChar* in a specified radix to a pointer, + * @param buffer The target buffer + * @param len On input, the size of <TT>buffer</TT>. On output, + * the number of UChars read from <TT>buffer</TT>. + * @param radix The desired radix + * @return The pointer value. + */ +void * +ufmt_utop(const UChar *buffer, + int32_t *len); + +/** + * Convert a string from the default codepage to Unicode. + * @param s The string to convert, in the default codepage. + * @param sSize The size of s to convert. + * @param target The buffer to convert to. + * @param tSize The size of target + * @return A pointer to a newly allocated converted version of s, or 0 + * on error. + */ +UChar* +ufmt_defaultCPToUnicode(const char *s, int32_t sSize, + UChar *target, int32_t tSize); + + + +#endif + |