Kin
Sigil_r example not working as shown in the official docs
I am following the elixir official docs and on the sigil page here https://elixir-lang.org/getting-started/sigils.html#custom-sigils
this example:
sigil_r(<<"foo">>, ~c"i")
is not working for me. The output should be
~r"foo"i
but it is:
iex(48)> sigil_r(<<"foo">>, ~c"i")
** (ArgumentError) errors were found at the given arguments:
* 1st argument: not an iodata term
(stdlib 5.0.2) :binary.list_to_bin({:sigil_c, [delimiter: "\"", line: 48], [{:<<>>, [line: 48], ["i"]}, []]})
(elixir 1.15.5) expanding macro: Kernel.sigil_r/2
iex:48: (file)
Marked As Solved
josevalim
You are right, it should be:
sigil_r(<<"foo">>, [?i])
Would you like to submit a PR to the docs or shall I update it?
Also Liked
Nicd
Looks like it works with the old charlist syntax but not with the new:
iex(1)> sigil_r(<<"foo">>, 'i')
~r/foo/i
iex(2)> sigil_r(<<"foo">>, ~c"i")
** (ArgumentError) errors were found at the given arguments:
* 1st argument: not an iodata term
(stdlib 5.1.1) :binary.list_to_bin({:sigil_c, [delimiter: "\"", line: 2], [{:<<>>, [line: 2], ["i"]}, []]})
(elixir 1.15.6) expanding macro: Kernel.sigil_r/2
iex:2: (file)
I guess the syntax has been changed to the new one without checking if it works. Filing an issue here could be a good starting point: GitHub - elixir-lang/elixir-lang.github.com: Website for Elixir · GitHub
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