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#! /usr/bin/ruby
=begin
string.rb - Extension for String.
Copyright (C) 2005,2006 Masao Mutoh
You may redistribute it and/or modify it under the same
license terms as Ruby.
=end
# Extension for String class.
#
# String#% method which accept "named argument". The translator can know
# the meaning of the msgids using "named argument" instead of %s/%d style.
class String
alias :_old_format_m :% # :nodoc:
# call-seq:
# %(arg)
# %(hash)
#
# Format - Uses str as a format specification, and returns the result of applying it to arg.
# If the format specification contains more than one substitution, then arg must be
# an Array containing the values to be substituted. See Kernel::sprintf for details of the
# format string. This is the default behavior of the String class.
# * arg: an Array or other class except Hash.
# * Returns: formatted String
#
# (e.g.) "%s, %s" % ["Masao", "Mutoh"]
#
# Also you can use a Hash as the "named argument". This is recommanded way for Ruby-GetText
# because the translators can understand the meanings of the msgids easily.
# * hash: {:key1 => value1, :key2 => value2, ... }
# * Returns: formatted String
#
# (e.g.) "%{firstname}, %{familyname}" % {:firstname => "Masao", :familyname => "Mutoh"}
def %(args)
if args.kind_of?(Hash)
ret = dup
args.each {|key, value|
ret.gsub!(/\%\{#{key}\}/, value.to_s)
}
ret
else
ret = gsub(/%\{/, '%%{')
begin
ret._old_format_m(args)
rescue ArgumentError
$stderr.puts " The string:#{ret}"
$stderr.puts " args:#{args.inspect}"
end
end
end
end
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