chulkilee
Parsing HTTP Link header with NimbleParsec
Hi - I implemented HTTP Link header parser with nimble_parsec. I know there is ex_link_header but just took it as a chance to use the parser library 
Here is the gist link - any feedback would be welcome!
- As
,is not allowed, I may just split the whole string with,- but not sure I can leverage existing tool to handle optionally escaped string (e.g.Plug.Conn.Utils.params) - Probably I can switch all
stringwithascii_charsince only ascii chars are allowed in the value - Not sure I’m using wrap/unwrap correctly
- I do not want to create another “micro” library. What would be better place to put this? plug, phoenix, standalone package to cover HTTP headers
Marked As Solved
valpackett
haha, I already did (initially published to hex @ March 30, 2019):
but it has a generator as well as a parser. The forum showed me this thread as related when I was creating that thread about it
Also Liked
LostKobrakai
NimbleParsec can output the compiled module, so users don’t need nimble_parsec as dependency, if that’s the reasoning here.
chulkilee
Another naive example at Tesla.Middleware.DecodeRels:"
defp rels(link) do
link
|> String.split(",")
|> Enum.map(&String.trim/1)
|> Enum.map(&rel/1)
|> Enum.into(%{})
end
defp rel(item) do
Regex.run(~r/\A<(.+)>; rel="(.+)"\z/, item, capture: :all_but_first)
|> Enum.reverse()
|> List.to_tuple()
end
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