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module Rack
module Utils
def parse_query(qs, d = nil)
params = {}
(qs || '').split(d ? /[#{d}] */n : DEFAULT_SEP).each do |p|
k, v = p.split('=', 2).map { |x| unescape(x) }
if cur = params[k]
if cur.class == Array
params[k] << v
else
params[k] = [cur, v]
end
else
params[k] = v
end
end
return params
end
module_function :parse_query
def normalize_params(params, name, v = nil)
name =~ %r(\A[\[\]]*([^\[\]]+)\]*)
k = $1 || ''
after = $' || ''
return if k.empty?
if after == ""
params[k] = v
elsif after == "[]"
params[k] ||= []
raise TypeError, "expected Array (got #{params[k].class.name}) for param `#{k}'" unless params[k].is_a?(Array)
params[k] << v
elsif after =~ %r(^\[\]\[([^\[\]]+)\]$) || after =~ %r(^\[\](.+)$)
child_key = $1
params[k] ||= []
raise TypeError, "expected Array (got #{params[k].class.name}) for param `#{k}'" unless params[k].is_a?(Array)
if params[k].last.is_a?(Hash) && !params[k].last.key?(child_key)
normalize_params(params[k].last, child_key, v)
else
params[k] << normalize_params({}, child_key, v)
end
else
params[k] ||= {}
raise TypeError, "expected Hash (got #{params[k].class.name}) for param `#{k}'" unless params[k].is_a?(Hash)
params[k] = normalize_params(params[k], after, v)
end
return params
end
module_function :normalize_params
end
end
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