Re: Most succinct way to parse an HTTP header string

[Kevin Martin <kev82@...>]

On 29 Aug 2013, at 15:13, David Crayford wrote:

>  want to parse a HTTP header string "name:value" pair. 


I've been using the following code to parse the headers out of an Rackspace API response for 18 months now. self._response is a string containing the whole http response.

local headerString = self._response:match("[%g ]+\r\n([%g \r\n]+)\r\n\r\n") .. "\r\n"
if headerString == nil then error("Couldn't find header") end
for k, v in headerString:gmatch("([%a%d%-]+): ([%g ]+)\r\n") do
	if k == nil then error("Unparseable Header") end
	headers[k] = v
end
return headers

Thanks,
Kevin