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// © 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
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