I would like to do the following (some_method).
some_method "aa/:foo/:bar/bb", {foo:1,bar:2}
>aa/1/2/bb
The following text
Title: How to format string by hash variable on ruby?
I wanna do it.
some_method "aa/:foo/:bar/bb", {foo:1,bar:2}
>aa/1/2/bb
If you want to use a hash, and you want to format it in any format,
'aa/%<foo>s/%<bar>s/bb'% {foo:1,bar:2}
Or
sprintf'aa/%<foo>s/%<bar>s/bb',foo:1,bar:2
I wonder if that'sorry. Because it is part of Ruby's printf format specification, you can specify the number of digits in the number as well as printf.
Miscellaneous.
require 'mustermann'
def some_method(fmt,h)
Mustermann.new(fmt).expand(h)
end
'aaa/:foo/:bar/bb'.gsub(/:(\w+)/){{foo:1,bar:2}.fetch($~[1].to_sym)}
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