/
number_helper.rb
351 lines (342 loc) · 16.4 KB
/
number_helper.rb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
module ActiveSupport
module NumberHelper
extend ActiveSupport::Autoload
eager_autoload do
autoload :NumberConverter
autoload :NumberToRoundedConverter
autoload :NumberToDelimitedConverter
autoload :NumberToHumanConverter
autoload :NumberToHumanSizeConverter
autoload :NumberToPhoneConverter
autoload :NumberToCurrencyConverter
autoload :NumberToPercentageConverter
end
extend self
# Formats a +number+ into a US phone number (e.g., (555)
# 123-9876). You can customize the format in the +options+ hash.
#
# ==== Options
#
# * <tt>:area_code</tt> - Adds parentheses around the area code.
# * <tt>:delimiter</tt> - Specifies the delimiter to use
# (defaults to "-").
# * <tt>:extension</tt> - Specifies an extension to add to the
# end of the generated number.
# * <tt>:country_code</tt> - Sets the country code for the phone
# number.
# ==== Examples
#
# number_to_phone(5551234) # => 555-1234
# number_to_phone('5551234') # => 555-1234
# number_to_phone(1235551234) # => 123-555-1234
# number_to_phone(1235551234, area_code: true) # => (123) 555-1234
# number_to_phone(1235551234, delimiter: ' ') # => 123 555 1234
# number_to_phone(1235551234, area_code: true, extension: 555) # => (123) 555-1234 x 555
# number_to_phone(1235551234, country_code: 1) # => +1-123-555-1234
# number_to_phone('123a456') # => 123a456
#
# number_to_phone(1235551234, country_code: 1, extension: 1343, delimiter: '.')
# # => +1.123.555.1234 x 1343
def number_to_phone(number, options = {})
NumberToPhoneConverter.convert(number, options)
end
# Formats a +number+ into a currency string (e.g., $13.65). You
# can customize the format in the +options+ hash.
#
# ==== Options
#
# * <tt>:locale</tt> - Sets the locale to be used for formatting
# (defaults to current locale).
# * <tt>:precision</tt> - Sets the level of precision (defaults
# to 2).
# * <tt>:unit</tt> - Sets the denomination of the currency
# (defaults to "$").
# * <tt>:separator</tt> - Sets the separator between the units
# (defaults to ".").
# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults
# to ",").
# * <tt>:format</tt> - Sets the format for non-negative numbers
# (defaults to "%u%n"). Fields are <tt>%u</tt> for the
# currency, and <tt>%n</tt> for the number.
# * <tt>:negative_format</tt> - Sets the format for negative
# numbers (defaults to prepending an hyphen to the formatted
# number given by <tt>:format</tt>). Accepts the same fields
# than <tt>:format</tt>, except <tt>%n</tt> is here the
# absolute value of the number.
#
# ==== Examples
#
# number_to_currency(1234567890.50) # => $1,234,567,890.50
# number_to_currency(1234567890.506) # => $1,234,567,890.51
# number_to_currency(1234567890.506, precision: 3) # => $1,234,567,890.506
# number_to_currency(1234567890.506, locale: :fr) # => 1 234 567 890,51 €
# number_to_currency('123a456') # => $123a456
#
# number_to_currency(-1234567890.50, negative_format: '(%u%n)')
# # => ($1,234,567,890.50)
# number_to_currency(1234567890.50, unit: '£', separator: ',', delimiter: '')
# # => £1234567890,50
# number_to_currency(1234567890.50, unit: '£', separator: ',', delimiter: '', format: '%n %u')
# # => 1234567890,50 £
def number_to_currency(number, options = {})
NumberToCurrencyConverter.convert(number, options)
end
# Formats a +number+ as a percentage string (e.g., 65%). You can
# customize the format in the +options+ hash.
#
# ==== Options
#
# * <tt>:locale</tt> - Sets the locale to be used for formatting
# (defaults to current locale).
# * <tt>:precision</tt> - Sets the precision of the number
# (defaults to 3). Keeps the number's precision if nil.
# * <tt>:significant</tt> - If +true+, precision will be the number
# of significant_digits. If +false+, the number of fractional
# digits (defaults to +false+).
# * <tt>:separator</tt> - Sets the separator between the
# fractional and integer digits (defaults to ".").
# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults
# to "").
# * <tt>:strip_insignificant_zeros</tt> - If +true+ removes
# insignificant zeros after the decimal separator (defaults to
# +false+).
# * <tt>:format</tt> - Specifies the format of the percentage
# string The number field is <tt>%n</tt> (defaults to "%n%").
#
# ==== Examples
#
# number_to_percentage(100) # => 100.000%
# number_to_percentage('98') # => 98.000%
# number_to_percentage(100, precision: 0) # => 100%
# number_to_percentage(1000, delimiter: '.', separator: ',') # => 1.000,000%
# number_to_percentage(302.24398923423, precision: 5) # => 302.24399%
# number_to_percentage(1000, locale: :fr) # => 1 000,000%
# number_to_percentage:(1000, precision: nil) # => 1000%
# number_to_percentage('98a') # => 98a%
# number_to_percentage(100, format: '%n %') # => 100 %
def number_to_percentage(number, options = {})
NumberToPercentageConverter.convert(number, options)
end
# Formats a +number+ with grouped thousands using +delimiter+
# (e.g., 12,324). You can customize the format in the +options+
# hash.
#
# ==== Options
#
# * <tt>:locale</tt> - Sets the locale to be used for formatting
# (defaults to current locale).
# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults
# to ",").
# * <tt>:separator</tt> - Sets the separator between the
# fractional and integer digits (defaults to ".").
# * <tt>:delimiter_pattern</tt> - Sets a custom regular expression used for
# deriving the placement of delimiter. Helpful when using currency formats
# like INR.
#
# ==== Examples
#
# number_to_delimited(12345678) # => 12,345,678
# number_to_delimited('123456') # => 123,456
# number_to_delimited(12345678.05) # => 12,345,678.05
# number_to_delimited(12345678, delimiter: '.') # => 12.345.678
# number_to_delimited(12345678, delimiter: ',') # => 12,345,678
# number_to_delimited(12345678.05, separator: ' ') # => 12,345,678 05
# number_to_delimited(12345678.05, locale: :fr) # => 12 345 678,05
# number_to_delimited('112a') # => 112a
# number_to_delimited(98765432.98, delimiter: ' ', separator: ',')
# # => 98 765 432,98
# number_to_delimited("123456.78",
# delimiter_pattern: /(\d+?)(?=(\d\d)+(\d)(?!\d))/)
# # => 1,23,456.78
def number_to_delimited(number, options = {})
NumberToDelimitedConverter.convert(number, options)
end
# Formats a +number+ with the specified level of
# <tt>:precision</tt> (e.g., 112.32 has a precision of 2 if
# +:significant+ is +false+, and 5 if +:significant+ is +true+).
# You can customize the format in the +options+ hash.
#
# ==== Options
#
# * <tt>:locale</tt> - Sets the locale to be used for formatting
# (defaults to current locale).
# * <tt>:precision</tt> - Sets the precision of the number
# (defaults to 3). Keeps the number's precision if nil.
# * <tt>:significant</tt> - If +true+, precision will be the number
# of significant_digits. If +false+, the number of fractional
# digits (defaults to +false+).
# * <tt>:separator</tt> - Sets the separator between the
# fractional and integer digits (defaults to ".").
# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults
# to "").
# * <tt>:strip_insignificant_zeros</tt> - If +true+ removes
# insignificant zeros after the decimal separator (defaults to
# +false+).
#
# ==== Examples
#
# number_to_rounded(111.2345) # => 111.235
# number_to_rounded(111.2345, precision: 2) # => 111.23
# number_to_rounded(13, precision: 5) # => 13.00000
# number_to_rounded(389.32314, precision: 0) # => 389
# number_to_rounded(111.2345, significant: true) # => 111
# number_to_rounded(111.2345, precision: 1, significant: true) # => 100
# number_to_rounded(13, precision: 5, significant: true) # => 13.000
# number_to_rounded(13, precision: nil) # => 13
# number_to_rounded(111.234, locale: :fr) # => 111,234
#
# number_to_rounded(13, precision: 5, significant: true, strip_insignificant_zeros: true)
# # => 13
#
# number_to_rounded(389.32314, precision: 4, significant: true) # => 389.3
# number_to_rounded(1111.2345, precision: 2, separator: ',', delimiter: '.')
# # => 1.111,23
def number_to_rounded(number, options = {})
NumberToRoundedConverter.convert(number, options)
end
# Formats the bytes in +number+ into a more understandable
# representation (e.g., giving it 1500 yields 1.5 KB). This
# method is useful for reporting file sizes to users. You can
# customize the format in the +options+ hash.
#
# See <tt>number_to_human</tt> if you want to pretty-print a
# generic number.
#
# ==== Options
#
# * <tt>:locale</tt> - Sets the locale to be used for formatting
# (defaults to current locale).
# * <tt>:precision</tt> - Sets the precision of the number
# (defaults to 3).
# * <tt>:significant</tt> - If +true+, precision will be the number
# of significant_digits. If +false+, the number of fractional
# digits (defaults to +true+)
# * <tt>:separator</tt> - Sets the separator between the
# fractional and integer digits (defaults to ".").
# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults
# to "").
# * <tt>:strip_insignificant_zeros</tt> - If +true+ removes
# insignificant zeros after the decimal separator (defaults to
# +true+)
#
# ==== Examples
#
# number_to_human_size(123) # => 123 Bytes
# number_to_human_size(1234) # => 1.21 KB
# number_to_human_size(12345) # => 12.1 KB
# number_to_human_size(1234567) # => 1.18 MB
# number_to_human_size(1234567890) # => 1.15 GB
# number_to_human_size(1234567890123) # => 1.12 TB
# number_to_human_size(1234567, precision: 2) # => 1.2 MB
# number_to_human_size(483989, precision: 2) # => 470 KB
# number_to_human_size(1234567, precision: 2, separator: ',') # => 1,2 MB
# number_to_human_size(1234567890123, precision: 5) # => "1.1228 TB"
# number_to_human_size(524288000, precision: 5) # => "500 MB"
def number_to_human_size(number, options = {})
NumberToHumanSizeConverter.convert(number, options)
end
# Pretty prints (formats and approximates) a number in a way it
# is more readable by humans (eg.: 1200000000 becomes "1.2
# Billion"). This is useful for numbers that can get very large
# (and too hard to read).
#
# See <tt>number_to_human_size</tt> if you want to print a file
# size.
#
# You can also define your own unit-quantifier names if you want
# to use other decimal units (eg.: 1500 becomes "1.5
# kilometers", 0.150 becomes "150 milliliters", etc). You may
# define a wide range of unit quantifiers, even fractional ones
# (centi, deci, mili, etc).
#
# ==== Options
#
# * <tt>:locale</tt> - Sets the locale to be used for formatting
# (defaults to current locale).
# * <tt>:precision</tt> - Sets the precision of the number
# (defaults to 3).
# * <tt>:significant</tt> - If +true+, precision will be the number
# of significant_digits. If +false+, the number of fractional
# digits (defaults to +true+)
# * <tt>:separator</tt> - Sets the separator between the
# fractional and integer digits (defaults to ".").
# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults
# to "").
# * <tt>:strip_insignificant_zeros</tt> - If +true+ removes
# insignificant zeros after the decimal separator (defaults to
# +true+)
# * <tt>:units</tt> - A Hash of unit quantifier names. Or a
# string containing an i18n scope where to find this hash. It
# might have the following keys:
# * *integers*: <tt>:unit</tt>, <tt>:ten</tt>,
# <tt>:hundred</tt>, <tt>:thousand</tt>, <tt>:million</tt>,
# <tt>:billion</tt>, <tt>:trillion</tt>,
# <tt>:quadrillion</tt>
# * *fractionals*: <tt>:deci</tt>, <tt>:centi</tt>,
# <tt>:mili</tt>, <tt>:micro</tt>, <tt>:nano</tt>,
# <tt>:pico</tt>, <tt>:femto</tt>
# * <tt>:format</tt> - Sets the format of the output string
# (defaults to "%n %u"). The field types are:
# * %u - The quantifier (ex.: 'thousand')
# * %n - The number
#
# ==== Examples
#
# number_to_human(123) # => "123"
# number_to_human(1234) # => "1.23 Thousand"
# number_to_human(12345) # => "12.3 Thousand"
# number_to_human(1234567) # => "1.23 Million"
# number_to_human(1234567890) # => "1.23 Billion"
# number_to_human(1234567890123) # => "1.23 Trillion"
# number_to_human(1234567890123456) # => "1.23 Quadrillion"
# number_to_human(1234567890123456789) # => "1230 Quadrillion"
# number_to_human(489939, precision: 2) # => "490 Thousand"
# number_to_human(489939, precision: 4) # => "489.9 Thousand"
# number_to_human(1234567, precision: 4,
# significant: false) # => "1.2346 Million"
# number_to_human(1234567, precision: 1,
# separator: ',',
# significant: false) # => "1,2 Million"
#
# number_to_human(500000000, precision: 5) # => "500 Million"
# number_to_human(12345012345, significant: false) # => "12.345 Billion"
#
# Non-significant zeros after the decimal separator are stripped
# out by default (set <tt>:strip_insignificant_zeros</tt> to
# +false+ to change that):
#
# number_to_human(12.00001) # => "12"
# number_to_human(12.00001, strip_insignificant_zeros: false) # => "12.0"
#
# ==== Custom Unit Quantifiers
#
# You can also use your own custom unit quantifiers:
# number_to_human(500000, units: { unit: 'ml', thousand: 'lt' }) # => "500 lt"
#
# If in your I18n locale you have:
#
# distance:
# centi:
# one: "centimeter"
# other: "centimeters"
# unit:
# one: "meter"
# other: "meters"
# thousand:
# one: "kilometer"
# other: "kilometers"
# billion: "gazillion-distance"
#
# Then you could do:
#
# number_to_human(543934, units: :distance) # => "544 kilometers"
# number_to_human(54393498, units: :distance) # => "54400 kilometers"
# number_to_human(54393498000, units: :distance) # => "54.4 gazillion-distance"
# number_to_human(343, units: :distance, precision: 1) # => "300 meters"
# number_to_human(1, units: :distance) # => "1 meter"
# number_to_human(0.34, units: :distance) # => "34 centimeters"
def number_to_human(number, options = {})
NumberToHumanConverter.convert(number, options)
end
end
end