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stmt |
bran |
cond |
sub |
pod |
time |
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package Time::Duration; |
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$Time::Duration::VERSION = '1.1_01'; |
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7578
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use 5.006; |
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51
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use strict; |
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39
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5
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use warnings; |
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39
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6
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5
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use constant DEBUG => 0; |
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1115
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require Exporter; |
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our @ISA = ('Exporter'); |
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our @EXPORT = qw( later later_exact earlier earlier_exact |
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ago ago_exact from_now from_now_exact |
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duration duration_exact |
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concise |
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); |
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our @EXPORT_OK = ('interval', @EXPORT); |
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our $MILLISECOND = 0; |
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# ALL SUBS ARE PURE FUNCTIONS |
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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sub concise ($) { |
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1
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my $string = $_[0]; |
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31
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DEBUG and print "in : $string\n"; |
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$string =~ tr/,//d; |
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$string =~ s/\band\b//; |
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147
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$string =~ s/\b(year|day|hour|minute|second)s?\b/substr($1,0,1)/eg; |
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$string =~ s/\b(millisecond)s?\b/ms/g; |
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$string =~ s/\s*(\d+)\s*/$1/g; |
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return $string; |
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} |
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sub later { |
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74
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1
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9172
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interval( $_[0], $_[1], ' earlier', ' later', 'right then'); } |
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sub later_exact { |
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33
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1
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4076
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interval_exact($_[0], $_[1], ' earlier', ' later', 'right then'); } |
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sub earlier { |
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865
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interval( $_[0], $_[1], ' later', ' earlier', 'right then'); } |
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sub earlier_exact { |
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0
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0
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1
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0
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interval_exact($_[0], $_[1], ' later', ' earlier', 'right then'); } |
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sub ago { |
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8
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1
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824
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interval( $_[0], $_[1], ' from now', ' ago', 'right now'); } |
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sub ago_exact { |
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0
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0
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1
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0
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interval_exact($_[0], $_[1], ' from now', ' ago', 'right now'); } |
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sub from_now { |
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1
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824
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interval( $_[0], $_[1], ' ago', ' from now', 'right now'); } |
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sub from_now_exact { |
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0
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0
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1
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0
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interval_exact($_[0], $_[1], ' ago', ' from now', 'right now'); } |
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51
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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sub duration_exact { |
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2
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2
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1
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255
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my $span = $_[0]; # interval in seconds |
54
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2
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50
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335
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my $precision = int($_[1] || 0) || 2; # precision (default: 2) |
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2
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50
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3
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return '0 seconds' unless $span; |
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2
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4
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_render('', |
57
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_separate(abs $span)); |
58
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} |
59
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60
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sub duration { |
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19
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19
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1
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2558
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my $span = $_[0]; # interval in seconds |
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19
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100
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81
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my $precision = int($_[1] || 0) || 2; # precision (default: 2) |
63
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19
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100
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27
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return '0 seconds' unless $span; |
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17
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29
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_render('', |
65
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_approximate($precision, |
66
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_separate(abs $span))); |
67
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} |
68
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69
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
70
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71
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sub interval_exact { |
72
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33
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33
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0
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33
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my $span = $_[0]; # interval, in seconds |
73
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# precision is ignored |
74
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33
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100
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64
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my $direction = ($span < 0) ? $_[2] # what a neg number gets |
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50
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75
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: ($span > 0) ? $_[3] # what a pos number gets |
76
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: return $_[4]; # what zero gets |
77
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32
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38
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_render($direction, |
78
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_separate($span)); |
79
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} |
80
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81
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sub interval { |
82
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98
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98
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0
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81
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my $span = $_[0]; # interval, in seconds |
83
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98
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100
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365
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my $precision = int($_[1] || 0) || 2; # precision (default: 2) |
84
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98
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100
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173
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my $direction = ($span < 0) ? $_[2] # what a neg number gets |
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100
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85
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: ($span > 0) ? $_[3] # what a pos number gets |
86
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: return $_[4]; # what zero gets |
87
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88
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102
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_render($direction, |
88
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_approximate($precision, |
89
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_separate($span))); |
90
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} |
91
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92
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#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~#~# |
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# |
94
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# The actual figuring is below here |
95
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96
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2
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2
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8
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use constant MINUTE => 60; |
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2
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1
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2
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77
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97
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2
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2
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6
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use constant HOUR => 3600; |
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2
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2
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77
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98
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2
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2
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6
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use constant DAY => 24 * HOUR; |
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1
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2
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73
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99
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2
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2
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5
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use constant YEAR => 365 * DAY; |
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2
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2
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941
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100
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101
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sub _separate { |
102
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# Breakdown of seconds into units, starting with the most significant |
103
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104
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139
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139
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106
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my $remainder = abs $_[0]; # remainder |
105
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139
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81
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my $this; # scratch |
106
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my @wheel; # retval |
107
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108
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# Years: |
109
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139
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160
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$this = int($remainder / (365 * 24 * 60 * 60)); |
110
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139
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177
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push @wheel, ['year', $this, 1_000_000_000]; |
111
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139
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142
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$remainder -= $this * (365 * 24 * 60 * 60); |
112
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113
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# Days: |
114
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139
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85
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$this = int($remainder / (24 * 60 * 60)); |
115
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139
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133
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push @wheel, ['day', $this, 365]; |
116
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139
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104
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$remainder -= $this * (24 * 60 * 60); |
117
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118
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# Hours: |
119
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139
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95
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$this = int($remainder / (60 * 60)); |
120
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139
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124
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push @wheel, ['hour', $this, 24]; |
121
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139
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86
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$remainder -= $this * (60 * 60); |
122
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123
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# Minutes: |
124
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139
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94
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$this = int($remainder / 60); |
125
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139
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122
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push @wheel, ['minute', $this, 60]; |
126
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139
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106
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$remainder -= $this * 60; |
127
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128
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139
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138
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push @wheel, ['second', int($remainder), 60]; |
129
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130
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# Thanks to Steven Haryanto (http://search.cpan.org/~sharyanto/) for the basis of this change. |
131
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139
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100
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166
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if ($MILLISECOND) { |
132
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18
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12
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$remainder -= int($remainder); |
133
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18
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119
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push @wheel, ['millisecond', sprintf("%0.f", $remainder * 1000), 1000]; |
134
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} |
135
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136
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139
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244
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return @wheel; |
137
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} |
138
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139
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
140
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sub _approximate { |
141
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# Now nudge the wheels into an acceptably (im)precise configuration |
142
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105
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105
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122
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my($precision, @wheel) = @_; |
143
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144
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169
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111
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Fix: |
145
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{ |
146
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# Constraints for leaving this block: |
147
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# 1) number of nonzero wheels must be <= $precision |
148
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# 2) no wheels can be improperly expressed (like having "60" for mins) |
149
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150
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105
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60
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my $nonzero_count = 0; |
151
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169
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103
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my $improperly_expressed; |
152
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153
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169
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90
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DEBUG and print join ' ', '#', (map "${$_}[1] ${$_}[0]", @wheel), "\n"; |
154
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169
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225
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for(my $i = 0; $i < @wheel; $i++) { |
155
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834
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524
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my $this = $wheel[$i]; |
156
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834
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100
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1237
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next if $this->[1] == 0; # Zeros require no attention. |
157
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377
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208
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++$nonzero_count; |
158
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377
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100
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426
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next if $i == 0; # the years wheel is never improper or over any limit; skip |
159
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160
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315
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100
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646
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if($nonzero_count > $precision) { |
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100
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161
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# This is one nonzero wheel too many! |
162
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44
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26
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DEBUG and print '', $this->[0], " is one nonzero too many!\n"; |
163
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164
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# Incr previous wheel if we're big enough: |
165
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44
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100
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70
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if($this->[1] >= ($this->[-1] / 2)) { |
166
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26
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20
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DEBUG and printf "incrementing %s from %s to %s\n", |
167
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$wheel[$i-1][0], $wheel[$i-1][1], 1 + $wheel[$i-1][1], ; |
168
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26
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27
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++$wheel[$i-1][1]; |
169
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} |
170
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171
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# Reset this and subsequent wheels to 0: |
172
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44
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53
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for(my $j = $i; $j < @wheel; $j++) { $wheel[$j][1] = 0 } |
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75
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96
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173
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44
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48
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redo Fix; # Start over. |
174
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} elsif($this->[1] >= $this->[-1]) { |
175
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# It's an improperly expressed wheel. (Like "60" on the mins wheel) |
176
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20
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36
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$improperly_expressed = $i; |
177
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20
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28
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DEBUG and print '', $this->[0], ' (', $this->[1], |
178
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") is improper!\n"; |
179
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} |
180
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} |
181
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182
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125
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100
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163
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if(defined $improperly_expressed) { |
183
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# Only fix the least-significant improperly expressed wheel (at a time). |
184
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20
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15
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DEBUG and printf "incrementing %s from %s to %s\n", |
185
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$wheel[$improperly_expressed-1][0], $wheel[$improperly_expressed-1][1], |
186
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1 + $wheel[$improperly_expressed-1][1], ; |
187
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20
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16
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++$wheel[ $improperly_expressed - 1][1]; |
188
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20
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13
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$wheel[ $improperly_expressed][1] = 0; |
189
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# We never have a "150" in the minutes slot -- if it's improper, |
190
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|
|
|
|
|
|
# it's only by having been rounded up to the limit. |
191
|
20
|
|
|
|
|
17
|
redo Fix; # Start over. |
192
|
|
|
|
|
|
|
} |
193
|
|
|
|
|
|
|
|
194
|
|
|
|
|
|
|
# Otherwise there's not too many nonzero wheels, and there's no |
195
|
|
|
|
|
|
|
# improperly expressed wheels, so fall thru... |
196
|
|
|
|
|
|
|
} |
197
|
|
|
|
|
|
|
|
198
|
105
|
|
|
|
|
165
|
return @wheel; |
199
|
|
|
|
|
|
|
} |
200
|
|
|
|
|
|
|
|
201
|
|
|
|
|
|
|
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
202
|
|
|
|
|
|
|
sub _render { |
203
|
|
|
|
|
|
|
# Make it into English |
204
|
|
|
|
|
|
|
|
205
|
139
|
|
|
139
|
|
112
|
my $direction = shift @_; |
206
|
|
|
|
|
|
|
my @wheel = map |
207
|
139
|
|
|
|
|
125
|
{; |
208
|
713
|
100
|
|
|
|
800
|
( $_->[1] == 0) ? () # zero wheels |
|
|
100
|
|
|
|
|
|
209
|
119
|
|
|
|
|
130
|
: ($_->[1] == 1) ? "${$_}[1] ${$_}[0]" # singular |
|
119
|
|
|
|
|
164
|
|
210
|
169
|
|
|
|
|
177
|
: "${$_}[1] ${$_}[0]s" # plural |
|
169
|
|
|
|
|
255
|
|
211
|
|
|
|
|
|
|
} |
212
|
|
|
|
|
|
|
@_ |
213
|
|
|
|
|
|
|
; |
214
|
139
|
50
|
|
|
|
197
|
return "just now" unless @wheel; # sanity |
215
|
139
|
|
|
|
|
148
|
$wheel[-1] .= $direction; |
216
|
139
|
100
|
|
|
|
240
|
return $wheel[0] if @wheel == 1; |
217
|
90
|
100
|
|
|
|
209
|
return "$wheel[0] and $wheel[1]" if @wheel == 2; |
218
|
41
|
|
|
|
|
43
|
$wheel[-1] = "and $wheel[-1]"; |
219
|
41
|
|
|
|
|
121
|
return join q{, }, @wheel; |
220
|
|
|
|
|
|
|
} |
221
|
|
|
|
|
|
|
|
222
|
|
|
|
|
|
|
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
223
|
|
|
|
|
|
|
1; |
224
|
|
|
|
|
|
|
|
225
|
|
|
|
|
|
|
__END__ |