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annotate lib/human.c @ 4985:41bd93f66780

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(humblock): Inspect BLOCKSIZE if BLOCK_SIZE isn't set.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 31 Mar 2004 07:25:19 +0000
parents 33e8f958b651
children a535859efd14
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* human.c -- print human readable file size
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2
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3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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4 Free Software Foundation, Inc.
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5
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6 This program is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program; if not, write to the Free Software Foundation,
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18 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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19
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20 /* Written by Paul Eggert and Larry McVoy. */
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21
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22 #if HAVE_CONFIG_H
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23 # include <config.h>
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24 #endif
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25
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26 #include "human.h"
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27
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28 #ifndef SIZE_MAX
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29 # define SIZE_MAX ((size_t) -1)
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30 #endif
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31 #ifndef UINTMAX_MAX
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32 # define UINTMAX_MAX ((uintmax_t) -1)
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33 #endif
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34
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35 #if HAVE_LOCALE_H && HAVE_LOCALECONV
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36 # include <locale.h>
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37 #endif
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38
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39 #include <stdio.h>
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40 #include <stdlib.h>
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41 #include <string.h>
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42
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43 #include "gettext.h"
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44 #define _(msgid) gettext (msgid)
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45
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46 #include <argmatch.h>
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47 #include <error.h>
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48 #include <xstrtol.h>
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49
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50 /* The maximum length of a suffix like "KiB". */
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51 #define HUMAN_READABLE_SUFFIX_LENGTH_MAX 3
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52
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53 static const char power_letter[] =
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54 {
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55 0, /* not used */
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56 'K', /* kibi ('k' for kilo is a special case) */
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57 'M', /* mega or mebi */
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58 'G', /* giga or gibi */
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59 'T', /* tera or tebi */
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60 'P', /* peta or pebi */
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61 'E', /* exa or exbi */
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62 'Z', /* zetta or 2**70 */
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63 'Y' /* yotta or 2**80 */
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64 };
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65
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67 /* If INEXACT_STYLE is not human_round_to_nearest, and if easily
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68 possible, adjust VALUE according to the style. */
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70 static long double
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71 adjust_value (int inexact_style, long double value)
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72 {
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73 /* Do not use the floorl or ceill functions, as that would mean
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74 checking for their presence and possibly linking with the
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75 standard math library, which is a porting pain. So leave the
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76 value alone if it is too large to easily round. */
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77 if (inexact_style != human_round_to_nearest && value < UINTMAX_MAX)
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78 {
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79 uintmax_t u = value;
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80 value = u + (inexact_style == human_ceiling && u != value);
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81 }
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82
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83 return value;
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84 }
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85
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86 /* Group the digits of NUMBER according to the grouping rules of the
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87 current locale. NUMBER contains NUMBERLEN digits. Modify the
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88 bytes pointed to by NUMBER in place, subtracting 1 from NUMBER for
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89 each byte inserted. Return the starting address of the modified
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90 number.
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91
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92 To group the digits, use GROUPING and THOUSANDS_SEP as in `struct
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93 lconv' from <locale.h>. */
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94
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95 static char *
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96 group_number (char *number, size_t numberlen,
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97 char const *grouping, char const *thousands_sep)
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98 {
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99 register char *d;
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100 size_t grouplen = SIZE_MAX;
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101 size_t thousands_seplen = strlen (thousands_sep);
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102 size_t i = numberlen;
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103
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104 /* The maximum possible value for NUMBERLEN is the number of digits
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105 in the square of the largest uintmax_t, so double the size of
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106 uintmax_t before converting to a bound. 302 / 1000 is ceil
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107 (log10 (2.0)). Add 1 for integer division truncation. */
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108 char buf[2 * sizeof (uintmax_t) * CHAR_BIT * 302 / 1000 + 1];
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109
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110 memcpy (buf, number, numberlen);
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111 d = number + numberlen;
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112
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113 for (;;)
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114 {
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115 unsigned char g = *grouping;
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116
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117 if (g)
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118 {
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119 grouplen = g < CHAR_MAX ? g : i;
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120 grouping++;
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121 }
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122
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123 if (i < grouplen)
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124 grouplen = i;
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125
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126 d -= grouplen;
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127 i -= grouplen;
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128 memcpy (d, buf + i, grouplen);
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129 if (i == 0)
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130 return d;
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131
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132 d -= thousands_seplen;
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133 memcpy (d, thousands_sep, thousands_seplen);
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134 }
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135 }
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136
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137 /* Convert N to a human readable format in BUF, using the options OPTS.
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138
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139 N is expressed in units of FROM_BLOCK_SIZE. FROM_BLOCK_SIZE must
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140 be nonnegative.
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
141
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
142 Use units of TO_BLOCK_SIZE in the output number. TO_BLOCK_SIZE
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
143 must be positive.
1142
ff40370aead6 (human_readable): Convert to ANSI-style definition.
Jim Meyering <jim@meyering.net>
parents: 1137
diff changeset
144
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
145 Use (OPTS & (human_round_to_nearest | human_floor | human_ceiling))
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
146 to determine whether to take the ceiling or floor of any result
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
147 that cannot be expressed exactly.
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
148
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
149 If (OPTS & human_group_digits), group the thousands digits
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
150 according to the locale, e.g., `1,000,000' in an American English
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
151 locale.
1863
e6b535c4a46e (human_readable): New function.
Jim Meyering <jim@meyering.net>
parents: 1848
diff changeset
152
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
153 If (OPTS & human_autoscale), deduce the output block size
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
154 automatically; TO_BLOCK_SIZE must be 1 but it has no effect on the
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
155 output. Use powers of 1024 if (OPTS & human_base_1024), and powers
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
156 of 1000 otherwise. For example, assuming powers of 1024, 8500
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
157 would be converted to 8.3, 133456345 to 127, 56990456345 to 53, and
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
158 so on. Numbers smaller than the power aren't modified.
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
159 human_autoscale is normally used together with human_SI.
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
160
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
161 If (OPTS & human_SI), append an SI prefix indicating which power is
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
162 being used. If in addition (OPTS & human_B), append "B" (if base
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
163 1000) or "iB" (if base 1024) to the SI prefix. When ((OPTS &
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
164 human_SI) && ! (OPTS & human_autoscale)), TO_BLOCK_SIZE must be a
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
165 power of 1024 or of 1000, depending on (OPTS &
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
166 human_base_1024). */
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
167
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
168 char *
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
169 human_readable (uintmax_t n, char *buf, int opts,
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
170 uintmax_t from_block_size, uintmax_t to_block_size)
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
171 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
172 int inexact_style =
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
173 opts & (human_round_to_nearest | human_floor | human_ceiling);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
174 unsigned int base = opts & human_base_1024 ? 1024 : 1000;
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
175 uintmax_t amt;
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
176 int tenths;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
177 int exponent = -1;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
178 int exponent_max = sizeof power_letter - 1;
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
179 char *p;
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
180 char *psuffix;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
181 char const *integerlim;
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
182
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
183 /* 0 means adjusted N == AMT.TENTHS;
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
184 1 means AMT.TENTHS < adjusted N < AMT.TENTHS + 0.05;
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
185 2 means adjusted N == AMT.TENTHS + 0.05;
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
186 3 means AMT.TENTHS + 0.05 < adjusted N < AMT.TENTHS + 0.1. */
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
187 int rounding;
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
188
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
189 char const *decimal_point = ".";
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
190 size_t decimal_pointlen = 1;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
191 char const *grouping = "";
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
192 char const *thousands_sep = "";
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
193 #if HAVE_LOCALE_H && HAVE_LOCALECONV
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
194 struct lconv const *l = localeconv ();
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
195 size_t pointlen = strlen (l->decimal_point);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
196 if (0 < pointlen && pointlen <= MB_LEN_MAX)
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
197 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
198 decimal_point = l->decimal_point;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
199 decimal_pointlen = pointlen;
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
200 }
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
201 grouping = l->grouping;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
202 if (strlen (l->thousands_sep) <= MB_LEN_MAX)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
203 thousands_sep = l->thousands_sep;
1142
ff40370aead6 (human_readable): Convert to ANSI-style definition.
Jim Meyering <jim@meyering.net>
parents: 1137
diff changeset
204 #endif
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
205
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
206 psuffix = buf + LONGEST_HUMAN_READABLE - HUMAN_READABLE_SUFFIX_LENGTH_MAX;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
207 p = psuffix;
2590
a3c74265aa47 (human_readable_inexact): Allow an input block
Jim Meyering <jim@meyering.net>
parents: 2293
diff changeset
208
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
209 /* Adjust AMT out of FROM_BLOCK_SIZE units and into TO_BLOCK_SIZE
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
210 units. If this can be done exactly with integer arithmetic, do
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
211 not use floating point operations. */
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
212 if (to_block_size <= from_block_size)
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
213 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
214 if (from_block_size % to_block_size == 0)
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
215 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
216 uintmax_t multiplier = from_block_size / to_block_size;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
217 amt = n * multiplier;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
218 if (amt / multiplier == n)
1863
e6b535c4a46e (human_readable): New function.
Jim Meyering <jim@meyering.net>
parents: 1848
diff changeset
219 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
220 tenths = 0;
1863
e6b535c4a46e (human_readable): New function.
Jim Meyering <jim@meyering.net>
parents: 1848
diff changeset
221 rounding = 0;
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
222 goto use_integer_arithmetic;
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
223 }
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
224 }
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
225 }
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
226 else if (from_block_size != 0 && to_block_size % from_block_size == 0)
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
227 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
228 uintmax_t divisor = to_block_size / from_block_size;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
229 uintmax_t r10 = (n % divisor) * 10;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
230 uintmax_t r2 = (r10 % divisor) * 2;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
231 amt = n / divisor;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
232 tenths = r10 / divisor;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
233 rounding = r2 < divisor ? 0 < r2 : 2 + (divisor < r2);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
234 goto use_integer_arithmetic;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
235 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
236
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
237 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
238 /* Either the result cannot be computed easily using uintmax_t,
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
239 or from_block_size is zero. Fall back on floating point.
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
240 FIXME: This can yield answers that are slightly off. */
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
241
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
242 long double dto_block_size = to_block_size;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
243 long double damt = n * (from_block_size / dto_block_size);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
244 size_t buflen;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
245 size_t nonintegerlen;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
246
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
247 if (! (opts & human_autoscale))
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
248 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
249 sprintf (buf, "%.0Lf", adjust_value (inexact_style, damt));
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
250 buflen = strlen (buf);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
251 nonintegerlen = 0;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
252 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
253 else
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
254 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
255 long double e = 1;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
256 exponent = 0;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
257
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
258 do
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
259 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
260 e *= base;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
261 exponent++;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
262 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
263 while (e * base <= damt && exponent < exponent_max);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
264
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
265 damt /= e;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
266
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
267 sprintf (buf, "%.1Lf", adjust_value (inexact_style, damt));
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
268 buflen = strlen (buf);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
269 nonintegerlen = decimal_pointlen + 1;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
270
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
271 if (1 + nonintegerlen + ! (opts & human_base_1024) < buflen
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
272 || ((opts & human_suppress_point_zero)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
273 && buf[buflen - 1] == '0'))
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
274 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
275 sprintf (buf, "%.0Lf",
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
276 adjust_value (inexact_style, damt * 10) / 10);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
277 buflen = strlen (buf);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
278 nonintegerlen = 0;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
279 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
280 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
281
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
282 p = psuffix - buflen;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
283 memmove (p, buf, buflen);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
284 integerlim = p + buflen - nonintegerlen;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
285 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
286 goto do_grouping;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
287
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
288 use_integer_arithmetic:
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
289 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
290 /* The computation can be done exactly, with integer arithmetic.
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
291
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
292 Use power of BASE notation if requested and if adjusted AMT is
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
293 large enough. */
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
294
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
295 if (opts & human_autoscale)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
296 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
297 exponent = 0;
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
298
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
299 if (base <= amt)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
300 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
301 do
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
302 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
303 unsigned r10 = (amt % base) * 10 + tenths;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
304 unsigned r2 = (r10 % base) * 2 + (rounding >> 1);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
305 amt /= base;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
306 tenths = r10 / base;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
307 rounding = (r2 < base
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
308 ? (r2 + rounding) != 0
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
309 : 2 + (base < r2 + rounding));
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
310 exponent++;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
311 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
312 while (base <= amt && exponent < exponent_max);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
313
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
314 if (amt < 10)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
315 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
316 if (inexact_style == human_round_to_nearest
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
317 ? 2 < rounding + (tenths & 1)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
318 : inexact_style == human_ceiling && 0 < rounding)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
319 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
320 tenths++;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
321 rounding = 0;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
322
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
323 if (tenths == 10)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
324 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
325 amt++;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
326 tenths = 0;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
327 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
328 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
329
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
330 if (amt < 10
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
331 && (tenths || ! (opts & human_suppress_point_zero)))
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
332 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
333 *--p = '0' + tenths;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
334 p -= decimal_pointlen;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
335 memcpy (p, decimal_point, decimal_pointlen);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
336 tenths = rounding = 0;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
337 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
338 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
339 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
340 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
341
4620
b0acbb185a60 (human_readable): Fix bug that rounded 10501 to 10k.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4543
diff changeset
342 if (inexact_style == human_round_to_nearest
b0acbb185a60 (human_readable): Fix bug that rounded 10501 to 10k.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4543
diff changeset
343 ? 5 < tenths + (0 < rounding + (amt & 1))
b0acbb185a60 (human_readable): Fix bug that rounded 10501 to 10k.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4543
diff changeset
344 : inexact_style == human_ceiling && 0 < tenths + rounding)
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
345 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
346 amt++;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
347
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
348 if ((opts & human_autoscale)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
349 && amt == base && exponent < exponent_max)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
350 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
351 exponent++;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
352 if (! (opts & human_suppress_point_zero))
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
353 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
354 *--p = '0';
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
355 p -= decimal_pointlen;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
356 memcpy (p, decimal_point, decimal_pointlen);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
357 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
358 amt = 1;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
359 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
360 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
361
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
362 integerlim = p;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
363
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
364 do
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
365 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
366 int digit = amt % 10;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
367 *--p = digit + '0';
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
368 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
369 while ((amt /= 10) != 0);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
370 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
371
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
372 do_grouping:
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
373 if (opts & human_group_digits)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
374 p = group_number (p, integerlim - p, grouping, thousands_sep);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
375
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
376 if (opts & human_SI)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
377 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
378 if (exponent < 0)
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
379 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
380 uintmax_t power;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
381 exponent = 0;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
382 for (power = 1; power < to_block_size; power *= base)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
383 if (++exponent == exponent_max)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
384 break;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
385 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
386
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
387 if (exponent)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
388 *psuffix++ = (! (opts & human_base_1024) && exponent == 1
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
389 ? 'k'
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
390 : power_letter[exponent]);
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
391
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
392 if (opts & human_B)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
393 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
394 if ((opts & human_base_1024) && exponent)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
395 *psuffix++ = 'i';
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
396 *psuffix++ = 'B';
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
397 }
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
398 }
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
399
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
400 *psuffix = '\0';
1137
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
401
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
402 return p;
2c9059ccc457 New file. The interface is inspired
Jim Meyering <jim@meyering.net>
parents:
diff changeset
403 }
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
404
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
405
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
406 /* The default block size used for output. This number may change in
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
407 the future as disks get larger. */
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
408 #ifndef DEFAULT_BLOCK_SIZE
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
409 # define DEFAULT_BLOCK_SIZE 1024
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
410 #endif
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
411
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
412 static char const *const block_size_args[] = { "human-readable", "si", 0 };
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
413 static int const block_size_opts[] =
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
414 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
415 human_autoscale + human_SI + human_base_1024,
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
416 human_autoscale + human_SI
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
417 };
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
418
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
419 static uintmax_t
2008
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
420 default_block_size (void)
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
421 {
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
422 return getenv ("POSIXLY_CORRECT") ? 512 : DEFAULT_BLOCK_SIZE;
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
423 }
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
424
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
425 static strtol_error
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
426 humblock (char const *spec, uintmax_t *block_size, int *options)
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
427 {
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
428 int i;
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
429 int opts = 0;
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
430
4985
41bd93f66780 (humblock): Inspect BLOCKSIZE if BLOCK_SIZE isn't set.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4788
diff changeset
431 if (! spec
41bd93f66780 (humblock): Inspect BLOCKSIZE if BLOCK_SIZE isn't set.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4788
diff changeset
432 && ! (spec = getenv ("BLOCK_SIZE"))
41bd93f66780 (humblock): Inspect BLOCKSIZE if BLOCK_SIZE isn't set.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4788
diff changeset
433 && ! (spec = getenv ("BLOCKSIZE")))
2008
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
434 *block_size = default_block_size ();
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
435 else
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
436 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
437 if (*spec == '\'')
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
438 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
439 opts |= human_group_digits;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
440 spec++;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
441 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
442
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
443 if (0 <= (i = ARGMATCH (spec, block_size_args, block_size_opts)))
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
444 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
445 opts |= block_size_opts[i];
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
446 *block_size = 1;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
447 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
448 else
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
449 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
450 char *ptr;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
451 strtol_error e = xstrtoumax (spec, &ptr, 0, block_size,
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
452 "eEgGkKmMpPtTyYzZ0");
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
453 if (e != LONGINT_OK)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
454 return e;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
455 for (; ! ('0' <= *spec && *spec <= '9'); spec++)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
456 if (spec == ptr)
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
457 {
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
458 opts |= human_SI;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
459 if (ptr[-1] == 'B')
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
460 opts |= human_B;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
461 if (ptr[-1] != 'B' || ptr[-2] == 'i')
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
462 opts |= human_base_1024;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
463 break;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
464 }
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
465 }
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
466 }
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
467
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
468 *options = opts;
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
469 return LONGINT_OK;
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
470 }
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
471
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
472 int
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
473 human_options (char const *spec, bool report_errors, uintmax_t *block_size)
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
474 {
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
475 int opts;
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
476 strtol_error e = humblock (spec, block_size, &opts);
2008
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
477 if (*block_size == 0)
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
478 {
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
479 *block_size = default_block_size ();
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
480 e = LONGINT_INVALID;
2d8ab27e705c (default_block_size): New function.
Jim Meyering <jim@meyering.net>
parents: 1863
diff changeset
481 }
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
482 if (e != LONGINT_OK && report_errors)
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
483 STRTOL_FATAL_ERROR (spec, _("block size"), e);
4351
d0d257fdad20 Merge human.c changes from coreutils.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4333
diff changeset
484 return opts;
1391
c9a7b76bd443 * lib/human.c, lib/human.h (human_readable): Coalesce last two args
Jim Meyering <jim@meyering.net>
parents: 1142
diff changeset
485 }