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Size: 1.75 KB
Versions: 4
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Stored size: 1.75 KB
Contents
# Copyright 2012 Twitter, Inc
# http://www.apache.org/licenses/LICENSE-2.0
class TwitterCldr.RBNFRule
@master = "x.0"
@improper_fraction = "x.x"
@proper_fraction = "0.x"
@negative = "-x"
constructor : (@base_value = 10, @rule_text, @radix = 10) ->
val = parseInt(@base_value)
exp = if val > 0 then Math.ceil(Math.log(val) / Math.log(radix || 10)) else 1
div = if exp >= 0 then Math.pow((radix || 10), exp) else 1
# if result is too big, subtract one from exponent and try again
@divisor = if div > val then Math.pow((radix || 10), exp - 1) else div
@substitution_types = ["equals", "left_arrow", "right_arrow"]
@master = TwitterCldr.RBNFRule.master
@improper_fraction = TwitterCldr.RBNFRule.improper_fraction
@proper_fraction = TwitterCldr.RBNFRule.proper_fraction
@negative = TwitterCldr.RBNFRule.negative
@parser = new TwitterCldr.RBNFRuleParser
@tokenizer = new TwitterCldr.RBNFTokenizer
get_substitution_count : ->
if @substitution_count? then return @substitution_count
@substitution_count = 0
for token in @get_tokens()
if token instanceof TwitterCldr.RBNFSubstitution
@substitution_count += 1
@substitution_count
is_even_multiple_of : (num) ->
num % @divisor == 0
is_normal : ->
not (@is_master() or @is_improper_fraction() or
@is_proper_fraction() or @is_negative())
is_master : ->
@base_value is @master
is_improper_fraction : ->
@base_value is @improper_fraction
is_proper_fraction : ->
@base_value is @proper_fraction
is_negative : ->
@base_value is @negative
get_tokens : ->
@tokens ||= @inline_substitutions(
@tokenizer.tokenize(@rule_text)
)
inline_substitutions : (tokens) ->
@parser.parse(tokens)
Version data entries
4 entries across 4 versions & 1 rubygems