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Versions: 9
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Contents
module TSV
def process(field, &block)
field_pos = identify_field field
through do |key, values|
case
when type == :single
field_values = values
when type == :flat
field_values = values
else
next if values.nil?
field_values = values[field_pos]
end
new_values = case
when block.arity == 1
yield(field_values)
when block.arity == 2
yield(field_values, key)
when block.arity == 3
yield(field_values, key, values)
else
raise "Unexpected arity in block, must be 1, 2 or 3: #{block.arity}"
end
case
when type == :single
self[key] = new_values
when type == :flat
self[key] = new_values
else
if ! values[field_pos].frozen? && ((String === values[field_pos] && String === new_values) ||
(Array === values[field_pos] && Array === new_values))
values[field_pos].replace new_values
else
values[field_pos] = new_values
end
self[key] = values
end
end
self
end
def add_field(name = nil)
through do |key, values|
new_values = yield(key, values)
new_values = [new_values] if type == :double and not Array === new_values
case
when (values.nil? and (fields.nil? or fields.empty?))
values = [new_values]
when values.nil?
values = [nil] * fields.length + [new_values]
when Array === values
values += [new_values]
else
values << new_values
end
self[key] = values
end
if not fields.nil? and not name.nil?
new_fields = self.fields + [name]
self.fields = new_fields
end
self
end
end
Version data entries
9 entries across 9 versions & 1 rubygems