1 /* 2 ****************************************************************************** 3 * 4 * Copyright (C) 1998-2004, International Business Machines 5 * Corporation and others. All Rights Reserved. 6 * 7 ****************************************************************************** 8 * 9 * File ufmt_cmn.h 10 * 11 * Modification History: 12 * 13 * Date Name Description 14 * 12/02/98 stephen Creation. 15 * 03/12/99 stephen Modified for new C API. 16 * 03/15/99 stephen Added defaultCPToUnicode, unicodeToDefaultCP 17 ****************************************************************************** 18 */ 19 20 #ifndef UFMT_CMN_H 21 #define UFMT_CMN_H 22 23 #include "unicode/utypes.h" 24 25 #define UFMT_DEFAULT_BUFFER_SIZE 128 26 #define MAX_UCHAR_BUFFER_SIZE(buffer) (sizeof(buffer)/(UTF_MAX_CHAR_LENGTH*sizeof(UChar))) 27 #define MAX_UCHAR_BUFFER_NEEDED(strLen) ((strLen+1)*UTF_MAX_CHAR_LENGTH*sizeof(UChar)) 28 29 /** 30 * Enum representing the possible argument types for uprintf/uscanf 31 */ 32 typedef enum ufmt_type_info { 33 ufmt_empty = 0, 34 ufmt_simple_percent, /* %% do nothing */ 35 ufmt_count, /* special flag for count */ 36 ufmt_int, /* int */ 37 ufmt_char, /* int, cast to char */ 38 ufmt_string, /* char* */ 39 ufmt_pointer, /* void* */ 40 ufmt_float, /* float */ 41 ufmt_double, /* double */ 42 ufmt_uchar, /* int, cast to UChar */ 43 ufmt_ustring /* UChar* */ 44 /*ufmt_wchar,*/ /* wchar_t */ 45 /*ufmt_wstring,*/ /* wchar_t* */ 46 /*ufmt_date,*/ /* Date */ 47 /*ufmt_last*/ 48 } ufmt_type_info; 49 50 /** 51 * Union representing a uprintf/uscanf argument 52 */ 53 typedef union ufmt_args { 54 int64_t int64Value; /* int, UChar */ 55 float floatValue; /* float */ 56 double doubleValue; /* double */ 57 void *ptrValue; /* any pointer - void*, char*, wchar_t*, UChar* */ 58 /*wchar_t wcharValue;*/ /* wchar_t */ /* TODO: Should wchar_t be used? */ 59 /*UDate dateValue;*/ /* Date */ 60 } ufmt_args; 61 62 /** 63 * Macro for determining the minimum of two numbers. 64 * @param a An integer 65 * @param b An integer 66 * @return <TT>a</TT> if </TT>a < b</TT>, <TT>b</TT> otherwise 67 */ 68 #define ufmt_min(a,b) ((a) < (b) ? (a) : (b)) 69 70 /** 71 * Convert a UChar in hex radix to an integer value. 72 * @param c The UChar to convert. 73 * @return The integer value of <TT>c</TT>. 74 */ 75 int 76 ufmt_digitvalue(UChar c); 77 78 /** 79 * Determine if a UChar is a digit for a specified radix. 80 * @param c The UChar to check. 81 * @param radix The desired radix. 82 * @return TRUE if <TT>c</TT> is a digit in <TT>radix</TT>, FALSE otherwise. 83 */ 84 UBool 85 ufmt_isdigit(UChar c, 86 int32_t radix); 87 88 /** 89 * Convert an int64_t to a UChar* in a specified radix 90 * @param buffer The target buffer 91 * @param len On input, the size of <TT>buffer</TT>. On output, 92 * the number of UChars written to <TT>buffer</TT>. 93 * @param value The value to be converted 94 * @param radix The desired radix 95 * @param uselower TRUE means lower case will be used, FALSE means upper case 96 * @param minDigits The minimum number of digits for for the formatted number, 97 * which will be padded with zeroes. -1 means do not pad. 98 */ 99 void 100 ufmt_64tou(UChar *buffer, 101 int32_t *len, 102 uint64_t value, 103 uint8_t radix, 104 UBool uselower, 105 int32_t minDigits); 106 107 /** 108 * It's like ufmt_64tou, but with a pointer. 109 * This functions avoids size constraints of 64-bit types. 110 * Pointers can be at 32-128 bits in size. 111 */ 112 void 113 ufmt_ptou(UChar *buffer, 114 int32_t *len, 115 void *value, 116 UBool uselower); 117 118 /** 119 * Convert a UChar* in a specified radix to an int64_t. 120 * @param buffer The target buffer 121 * @param len On input, the size of <TT>buffer</TT>. On output, 122 * the number of UChars read from <TT>buffer</TT>. 123 * @param radix The desired radix 124 * @return The numeric value. 125 */ 126 int64_t 127 ufmt_uto64(const UChar *buffer, 128 int32_t *len, 129 int8_t radix); 130 131 /** 132 * Convert a UChar* in a specified radix to a pointer, 133 * @param buffer The target buffer 134 * @param len On input, the size of <TT>buffer</TT>. On output, 135 * the number of UChars read from <TT>buffer</TT>. 136 * @param radix The desired radix 137 * @return The pointer value. 138 */ 139 void * 140 ufmt_utop(const UChar *buffer, 141 int32_t *len); 142 143 /** 144 * Convert a string from the default codepage to Unicode. 145 * @param s The string to convert, in the default codepage. 146 * @param sSize The size of s to convert. 147 * @param target The buffer to convert to. 148 * @param tSize The size of target 149 * @return A pointer to a newly allocated converted version of s, or 0 150 * on error. 151 */ 152 UChar* 153 ufmt_defaultCPToUnicode(const char *s, int32_t sSize, 154 UChar *target, int32_t tSize); 155 156 157 158 #endif 159 160