22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
# File 'lib/chrad/cli.rb', line 22
def optparse
@optparse ||= OptionParser.new do |opts|
opts.banner = "Converts integers into a different base (radix)."
opts.define_head "Usage: #{$0} [options] -i <input_base> -o <output_base> <number> [...]"
opts.summary_width = 24
opts.summary_indent = ' '
opts.separator ''
opts.separator 'REQUIRED OPTIONS'
opts.separator ''
opts.on('-iBASE', '--input=BASE',
'Interpret input strings integers in base <BASE>'
) do |base|
input.base = base
end
opts.on('-oBASE', '--output=BASE',
'Print converted numbers as integers in base <BASE>'
) do |base|
output.base = base
end
opts.separator ''
opts.separator 'INPUT/OUTPUT FORMAT'
opts.separator ''
opts.on('--input-list',
'Input values as delimiter separated lists'
) do
input.mode = :list
end
opts.on('--output-list',
'Output values as delimiter separated lists'
) do
output.mode = :list
end
opts.on('-l', '--list',
'Both input and output values as delimiter separated lists',
'(Shorthand for using both --input-list and --output-list)'
) do
input.mode = :list
output.mode = :list
end
opts.on('--input-sep=CHAR',
'Use <CHAR> as the delimiter between places',
'in input vales when using --input-list mode'
) do |sep|
input.separator = sep
end
opts.on('--output-sep=CHAR',
'Use <CHAR> as the delimiter between places',
'in output vales when using --output-list mode'
) do |sep|
output.separator = sep
end
opts.on('-s', '--separator=CHAR',
'Use <CHAR> as the delimiter between places in both',
'input and output list modes. (shothand for using',
'both --input-separator=CHAR and --output-separator=CHAR)'
) do |sep|
input.separator = sep
output.separator = sep
end
opts.separator ''
opts.separator 'DIGIT ALPHABET'
opts.separator ''
opts.on('--input-digits=STR',
'Use the given <STR> as the set of chars to use',
'when interpreting input integers.',
'(Ignored when using--input-list mode.)'
) do |str|
input.alphabet = str
end
opts.on('--output-digits=STR',
'Use the given <STR> as the set of chars to use',
'when printing number in the output base.',
'(Ignored when using--input-list mode.)'
) do |str|
output.alphabet = str
end
opts.on('-d', '--digits=STR',
'Use the given <STR> as the set of chars to use',
'for both input and output. (shorthand for using',
'both --input-digits=STR and --output-digits=STR)'
) do |str|
input.alphabet = str
output.alphabet = str
end
opts.separator ''
opts.on('--stdin',
'Read one number per line from STDIN instead',
'of ARGV. Equivalent to using the single',
'character "-" as the first arg.'
) do
input.force_stdin = true
end
opts.on('--list-named-digits',
'List the built-in named digit sets. These names',
'can be passed to any of --digits, --input-digits,',
'or --output-digits using the \"name:\" prefix.',
'(example: \"--digits=base64\")'
) do
Alphabet.all.each_pair do |name, digits|
puts "name:#{name}\t#{digits.join('')}"
end
exit
end
opts.on('-h', '--help', 'Show this help message') do
puts opts
exit
end
opts.on('--version', 'Show version') do
puts ChRad::VERSION
exit
end
end
end
|