diff options
author | Luigi Scarso <luigi.scarso@gmail.com> | 2018-09-05 21:32:42 +0000 |
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committer | Luigi Scarso <luigi.scarso@gmail.com> | 2018-09-05 21:32:42 +0000 |
commit | fabd7dde48918eb14a9a3977b6437e70252159b7 (patch) | |
tree | 9977a31f2e6e54bc683fdc826087ad80eb306596 /Build/source/texk/web2c/luatexdir/luapplib/util/utilnumber.h | |
parent | 1b8b254a766350291f8e7e19feaf6326ebabe633 (diff) |
pplib for luatex
git-svn-id: svn://tug.org/texlive/trunk@48592 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/luatexdir/luapplib/util/utilnumber.h')
-rw-r--r-- | Build/source/texk/web2c/luatexdir/luapplib/util/utilnumber.h | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/luatexdir/luapplib/util/utilnumber.h b/Build/source/texk/web2c/luatexdir/luapplib/util/utilnumber.h new file mode 100644 index 00000000000..3c96571b5ce --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/util/utilnumber.h @@ -0,0 +1,354 @@ +#ifndef UTIL_NUMBER_H +#define UTIL_NUMBER_H + +#include <stddef.h> // for size_t + +#include "utilplat.h" +#include "utildecl.h" + +/* since 'long' isn't long for msvc64/mingw64, we need a type for machine word */ + +#if !defined(__cplusplus) || !defined(_MSC_VER) +# include <stdint.h> // int*_t types are in standard in msvc++ +#endif + +//#if defined(MSVC64) || defined(__MINGW64__) || defined(__x86_64__) || UINTPTR_MAX > 0xffffffff +//# define BIT64 +//#else +//# define BIT64 +//#endif + +#if defined(_WIN64) || defined(__MINGW32__) +# define INT64F "%I64d" +# define UINT64F "%I64u" +#else +# define INT64F "%lld" +# define UINT64F "%llu" +#endif + +#if defined(MSVC64) +# define intlw_t int64_t +# define uintlw_t uint64_t +# define INTLW(N) N##I64 +# define UINTLW(N) N##UI64 +# define INTLWF INT64F +# define UINTLWF UINT64F +#elif defined(__MINGW64__) +# define intlw_t int64_t +# define uintlw_t uint64_t +# define INTLW(N) N##LL +# define UINTLW(N) N##ULL +# define INTLWF INT64F +# define UINTLWF UINT64F +#else // 32bit or sane 64bit (LP64) +# define intlw_t long +# define uintlw_t size_t /*unsigned long*/ +# define INTLW(N) N##L +# define UINTLW(N) N##UL +# define INTLWF "%ld" +# define UINTLWF "%lu" +#endif + +/* basic constants */ + +#define MAX_RADIX 36 +// #define MAX_INTEGER_DIGITS 65 /* 64-bit number in binary form plus '\0' */ +#define MAX_INTEGER_DIGITS 128 // to handle romannumeral of short int + +#define base36_uc_alphabet "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" +#define base36_lc_alphabet "0123456789abcdefghijklmnopqrstuvwxyz" + +#define base26_uc_alphabet "ABCDEFGHIJKLMNOPQRSTUVWXYZ" +#define base26_lc_alphabet "abcdefghijklmnopqrstuvwxyz" +extern const int base26_lookup[]; + +#define base36_lc_palindrome "zyxwvutsrqponmlkjihgfedcba9876543210123456789abcdefghijklmnopqrstuvwxyz" +#define base36_uc_palindrome "ZYXWVUTSRQPONMLKJIHGFEDCBA9876543210123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" + +extern const int base36_lookup[]; + +#define base10_palindrome "9876543210123456789" +#define base10_alphabet "0123456789" +extern const int base10_lookup[]; + +#define base16_uc_alphabet "0123456789ABCDEF" +#define base16_lc_alphabet "0123456789abcdef" +extern const int base16_lookup[]; + +#define base16_uc_digit1(c) base16_uc_alphabet[(c)>>4] +#define base16_uc_digit2(c) base16_uc_alphabet[(c)&15] +#define base16_lc_digit1(c) base16_lc_alphabet[(c)>>4] +#define base16_lc_digit2(c) base16_lc_alphabet[(c)&15] + +#define base8_digit(c) ((unsigned)(c - '0') <= (unsigned)('7' - '0')) +#define base8_value(c) (base8_digit(c) ? (c) - '0' : -1) + +#define base10_digit(c) ((unsigned)(c - '0') <= (unsigned)('9' - '0')) +#define base10_value(c) (base10_lookup[(uint8_t)c]) + +#define base16_digit(c) (base16_lookup[(uint8_t)c] >= 0) +#define base16_value(c) (base16_lookup[(uint8_t)c]) + +#define base26_digit(c) (base26_lookup[(uint8_t)c] >= 0) +#define base26_value(c) (base26_lookup[(uint8_t)c]) + +#define base36_digit(c) (base36_lookup[(uint8_t)c] >= 0) +#define base36_value(c) (base36_lookup[(uint8_t)c]) + +//#define base_digit(c, radix) ((unsigned)(base36_lookup[c]) < (unsigned)(radix)) +//#define base_value(c, radix) (base_digit(c, radix) ? base36_lookup[c] : -1) + +/* integer from string; return a pointer to character next to the last digit */ + +UTILAPI const char * string_to_int32 (const char *s, int32_t *number); +UTILAPI const char * string_to_intlw (const char *s, intlw_t *number); +UTILAPI const char * string_to_int64 (const char *s, int64_t *number); + +UTILAPI const char * string_to_uint32 (const char *s, uint32_t *number); +UTILAPI const char * string_to_uintlw (const char *s, uintlw_t *number); +UTILAPI const char * string_to_uint64 (const char *s, uint64_t *number); + +UTILAPI const char * radix_to_int32 (const char *s, int32_t *number, int radix); +UTILAPI const char * radix_to_intlw (const char *s, intlw_t *number, int radix); +UTILAPI const char * radix_to_int64 (const char *s, int64_t *number, int radix); + +UTILAPI const char * radix_to_uint32 (const char *s, uint32_t *number, int radix); +UTILAPI const char * radix_to_uintlw (const char *s, uintlw_t *number, int radix); +UTILAPI const char * radix_to_uint64 (const char *s, uint64_t *number, int radix); + +UTILAPI const char * roman_to_uint16 (const char *s, uint16_t *number); + +UTILAPI const char * alpha_to_uint32 (const char *s, uint32_t *number); +UTILAPI const char * alpha_to_uintlw (const char *s, uintlw_t *number); +UTILAPI const char * alpha_to_uint64 (const char *s, uint64_t *number); + +UTILAPI const char * alphan_to_uint32 (const char *s, uint32_t *number); +UTILAPI const char * alphan_to_uintlw (const char *s, uintlw_t *number); +UTILAPI const char * alphan_to_uint64 (const char *s, uintlw_t *number); + +/* +integer to string; return a pointer to null-terminated static const string +same but also stores pointer to trailing null (to be used for firther formatting) +*/ + +UTILAPI char * int32_as_string (int32_t number, char **e); +UTILAPI char * intlw_as_string (intlw_t number, char **e); +UTILAPI char * int64_as_string (int64_t number, char **e); + +UTILAPI char * uint32_as_string (uint32_t number, char **e); +UTILAPI char * uintlw_as_string (uintlw_t number, char **e); +UTILAPI char * uint64_as_string (uint64_t number, char **e); + +#define int32_to_string(number) int32_as_string(number, NULL) +#define intlw_to_string(number) intlw_as_string(number, NULL) +#define int64_to_string(number) int64_as_string(number, NULL) + +#define uint32_to_string(number) uint32_as_string(number, NULL) +#define uintlw_to_string(number) uintlw_as_string(number, NULL) +#define uint64_to_string(number) uint64_as_string(number, NULL) + +UTILAPI char * int32_as_radix (int32_t number, int radix, char **e); +UTILAPI char * intlw_as_radix (intlw_t number, int radix, char **e); +UTILAPI char * int64_as_radix (int64_t number, int radix, char **e); + +UTILAPI char * uint32_as_radix (uint32_t number, int radix, char **e); +UTILAPI char * uintlw_as_radix (uintlw_t number, int radix, char **e); +UTILAPI char * uint64_as_radix (uint64_t number, int radix, char **e); + +#define int32_to_radix(number, radix) int32_as_radix(number, radix, NULL) +#define intlw_to_radix(number, radix) intlw_as_radix(number, radix, NULL) +#define int64_to_radix(number, radix) int64_as_radix(number, radix, NULL) + +#define uint32_to_radix(number, radix) uint32_as_radix(number, radix, NULL) +#define uintlw_to_radix(number, radix) uintlw_as_radix(number, radix, NULL) +#define uint64_to_radix(number, radix) uint64_as_radix(number, radix, NULL) + +UTILAPI char * uint32_as_alpha_uc (uint32_t number, char **e); +UTILAPI char * uint32_as_alpha_lc (uint32_t number, char **e); +UTILAPI char * uintlw_as_alpha_uc (uintlw_t number, char **e); +UTILAPI char * uintlw_as_alpha_lc (uintlw_t number, char **e); +UTILAPI char * uint64_as_alpha_uc (uint64_t number, char **e); +UTILAPI char * uint64_as_alpha_lc (uint64_t number, char **e); + +#define uint32_to_alpha_uc(number) uint32_as_alpha_uc(number, NULL) +#define uint32_to_alpha_lc(number) uint32_as_alpha_lc(number, NULL) +#define uintlw_to_alpha_uc(number) uintlw_as_alpha_uc(number, NULL) +#define uintlw_to_alpha_lc(number) uintlw_as_alpha_lc(number, NULL) +#define uint64_to_alpha_uc(number) uint64_as_alpha_uc(number, NULL) +#define uint64_to_alpha_lc(number) uint64_as_alpha_lc(number, NULL) + +UTILAPI char * uint32_as_alphan_uc (uint32_t number, char **e); +UTILAPI char * uint32_as_alphan_lc (uint32_t number, char **e); +UTILAPI char * uintlw_as_alphan_uc (uintlw_t number, char **e); +UTILAPI char * uintlw_as_alphan_lc (uintlw_t number, char **e); +UTILAPI char * uint64_as_alphan_uc (uint64_t number, char **e); +UTILAPI char * uint64_as_alphan_lc (uint64_t number, char **e); + +#define uint32_to_alphan_uc(number) uint32_as_alpha_uc(number, NULL) +#define uint32_to_alphan_lc(number) uint32_as_alpha_lc(number, NULL) +#define uintlw_to_alphan_uc(number) uintlw_as_alpha_uc(number, NULL) +#define uintlw_to_alphan_lc(number) uintlw_as_alpha_lc(number, NULL) +#define uint64_to_alphan_uc(number) uint64_as_alpha_uc(number, NULL) +#define uint64_to_alphan_lc(number) uint64_as_alpha_lc(number, NULL) + +/* roman numeral (limited to uint16_t) */ + +UTILAPI char * uint16_as_roman_uc (uint16_t number, char **e); +UTILAPI char * uint16_as_roman_lc (uint16_t number, char **e); + +#define uint16_to_roman_uc(number) uint16_as_roman_uc(number, NULL) +#define uint16_to_roman_lc(number) uint16_as_roman_lc(number, NULL) + +#define uint16_as_roman(number) uint16_as_roman_uc(number) +#define uint16_to_roman(number) uint16_to_roman_uc(number) + +/* double/float to string */ + +UTILAPI char * double_to_string (double number, int digits); +UTILAPI char * float_to_string (float number, int digits); + +UTILAPI char * double_as_string (double number, int digits, char **r, char **e); +UTILAPI char * float_as_string (float number, int digits, char **r, char **e); + +/* string to double/float */ + +UTILAPI const char * string_to_double (const char *s, double *number); +UTILAPI const char * string_to_float (const char *s, float *number); + +/* convenience form accepting comma among a dot, with not exp notation (eg. pdf) */ + +UTILAPI const char * convert_to_double (const char *s, double *number); +UTILAPI const char * convert_to_float (const char *s, float *number); + +/* binary data parsers helpers */ + +#define get_byte1(i) ((i)&255) +#define get_byte2(i) (((i)>>8)&255) +#define get_byte3(i) (((i)>>16)&255) +#define get_byte4(i) (((i)>>24)&255) + +#define read_uint16be_as(s, int_type) ((int_type)((s[0]<<8)|s[1])) +#define read_uint32be_as(s, int_type) ((int_type)((s[0]<<24)|(s[1]<<16)|(s[2]<<8)|s[3])) + +#define read_uint16le_as(s, int_type) ((int_type)((s[1]<<8)|s[0])) +#define read_uint32le_as(s, int_type) ((int_type)((s[3]<<24)|(s[2]<<16)|(s[1]<<8)|s[0])) + +#define read_uint16_native(s) (*((uint16_t *)(s))) +#define read_uint32_native(s) (*((uint32_t *)(s))) +#define read_int16_native(s) (*((int16_t *)(s))) +#define read_int32_native(s) (*((int32_t *)(s))) + +#define scan_uint16be_as(s, int_type) (s += 2, (int_type)((s[-2]<<8)|s[-1])) +#define scan_uint32be_as(s, int_type) (s += 4, (int_type)((s[-4]<<24)|(s[-3]<<16)|(s[-2]<<8)|s[-1])) + +#define scan_uint16le_as(s, int_type) (s += 2, (int_type)((s[-1]<<8)|s[-2])) +#define scan_uint32le_as(s, int_type) (s += 4, (int_type)((s[-1]<<24)|(s[-2]<<16)|(s[-3]<<8)|s[-4])) + +#define scan_uint16_native(s) (s += 2, read_uint16_native(s-2)) +#define scan_uint32_native(s) (s += 4, read_uint32_native(s-4)) +#define scan_int16_native(s) (s += 2, read_int16_native(s-2)) +#define scan_int32_native(s) (s += 4, read_int32_native(s-4)) + +#define read_fixed16_16_as(s, float_type) (((float_type)read_uint32be_as(s, signed int))/(1<<16)) +#define read_fixed2_14_as(s, float_type) (((float_type)read_uint16be_as(s, signed short))/(1<<14)) + +#define scan_fixed16_16_as(s, float_type) (((float_type)scan_uint32be_as(s, signed int))/(1<<16)) +#define scan_fixed2_14_as(s, float_type) (((float_type)scan_uint16be_as(s, signed short))/(1<<14)) + +/* internal procedures */ + +#define _scan_sign(c, sign, next) \ + do { if (c == '-') { sign = 1; c = next; } else if (c == '+') { sign = 0; c = next; } else sign = 0; } while (0) + +#define integer_multiplied10(number) (((number) << 1) + ((number) << 3)) + +#define _scan_integer(c, number, next) \ + for (number = 0; base10_digit(c); number = integer_multiplied10(number) + (c - '0'), c = next) +#define _scan_radix(c, number, radix, next) \ + for (number = 0; (c = base36_value(c)) >= 0 && c < radix; number = number * radix + c, c = next) + +#define _read_integer(c, number, next) \ + for (number = c - '0', c = next; base10_digit(c); number = integer_multiplied10(number) + (c - '0'), c = next) +#define _read_radix(c, number, radix, next) \ + for (number = c - '0', c = next; (c = base36_value(c)) >= 0 && c < radix; number = number * radix + c, c = next) + +/* rationals */ + +#define _scan_decimal(c, number, next) \ + for (number = 0; base10_digit(c); number = number*10 + (c - '0'), c = next) +#define _scan_fraction(c, number, exponent10, next) \ + for (exponent10 = 0; base10_digit(c); --exponent10, number = number*10 + (c - '0'), c = next) + +#define _scan_exponent10(c, exponent10, next) \ + do { \ + int eexponent10, eexpsign; \ + _scan_sign(c, eexpsign, next); \ + _scan_integer(c, eexponent10, next); \ + if (eexpsign) \ + exponent10 -= eexponent10; \ + else \ + exponent10 += eexponent10; \ + } while(0) + +#if 0 + +// kept just for sentiment ;) + +extern const double double_binary_power10[]; +extern const float float_binary_power10[]; +extern const double double_binary_negpower10[]; +extern const float float_binary_negpower10[]; + +#define double_negative_exp10(number, exponent) \ +{ const double *bp10; int e = ((exponent) < 511 ? 511 : -(exponent)); \ + for (bp10 = double_binary_negpower10; e > 0; e >>= 1, ++bp10) \ + if (e & 1) number *= *bp10; } + +#define float_negative_exp10(number, exponent) \ +{ const float *bp10; int e = ((exponent) < 64 ? 64 : -(exponent)); \ + for (bp10 = float_binary_negpower10; e > 0; e >>= 1, ++bp10) \ + if (e & 1) number *= *bp10; } + +#define double_positive_exp10(number, exponent) \ +{ const double *bp10; int e = ((exponent) > 511 ? 511 : (exponent)); \ + for (bp10 = double_binary_power10; e > 0; e >>= 1, ++bp10) \ + if (e & 1) number *= *bp10; } + +#define float_positive_exp10(number, exponent) \ +{ const float *bp10; int e = ((exponent) > 64 ? 64 : (exponent)); \ + for (bp10 = double_binary_power10; e > 0; e >>= 1, ++bp10) \ + if (e & 1) number *= *bp10; } + +#define double_exp10(number, exponent) \ + if ((exponent) < 0) double_negative_exp10(number, exponent) else if ((exponent) > 0) double_positive_exp10(number, exponent) + +#define float_exp10(number, exponent) \ + if ((exponent) < 0) float_negative_exp10(number, exponent) else if ((exponent) > 0) float_positive_exp10(number, exponent) + +#else + +extern const double double_decimal_power10[]; +extern const float float_decimal_power10[]; +extern const double double_decimal_negpower10[]; +extern const float float_decimal_negpower10[]; + +#define double_negative_exp10(number, exponent) ((number) *= double_decimal_negpower10[(exponent) < -308 ? 308 : -(exponent)]) +#define double_positive_exp10(number, exponent) ((number) *= double_decimal_power10[(exponent) > 308 ? 308 : (exponent)]) + +#define float_negative_exp10(number, exponent) ((number) *= float_decimal_negpower10[(exponent) < -38 ? 38 : -(exponent)]) +#define float_positive_exp10(number, exponent) ((number) *= float_decimal_power10[(exponent) > 38 ? 38 : (exponent)]) + +#define double_exp10(number, exponent) ((void)(((exponent) < 0 && double_negative_exp10(number, exponent)) || (((exponent) > 0 && double_positive_exp10(number, exponent))))) +#define float_exp10(number, exponent) ((void)(((exponent) < 0 && float_negative_exp10(number, exponent)) || (((exponent) > 0 && float_positive_exp10(number, exponent))))) + +#endif + +/* pretty common stuff */ + +#define bytes_to_hex(input, size, output) bytes_to_hex_lc(input, size, output) +UTILAPI size_t bytes_to_hex_lc (const void *input, size_t size, uint8_t *output); +UTILAPI size_t bytes_to_hex_uc (const void *input, size_t size, uint8_t *output); +UTILAPI size_t hex_to_bytes (const void *input, size_t size, uint8_t *output); +UTILAPI void print_as_hex (const void *input, size_t bytes); + +#endif
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