string.find Help

[harleydude]

I have been trying to figure this out for a couple of days now.

I am trying to get particular field out of the following strings

Content-Type: text/plain; charset=iso-8859-1
Content-Type: text/plain
Content-Type: text/plain;

All I want is to determine if the content type is text/plain or text/html and return what is found. Can someone help me determine what pattern string to provide?

Thanks

[theguywiththefunnyhair]

Hi harleydude,
try


search_in = "yourstring"
_,_, type, found = string.find(search_in, "^Content-Type: text/(%a-);(.-)$")
if not type then
_,_, type = string.find(search_in, "^Content-Type: text/(%a-)$")
end


the first search should return type and found for the 1st and last string patterns you provided and the second will give the type for the middle one

i didnt test it but i think it should work

Cheers

Dan

[harleydude]

Thanks, but it returns nil for both type and found.

Rick

[harleydude]

Here is the code I used

local search_in = "Content-Type: text/plain; charset=iso-8859-1"
local _,_, type, found = string.find(search_in, "^Content-Type: text/(%a-);(.-)$")
if not type then
local _,_, type = string.find(search_in, "^Content-Type: text/(%a-)$")
end
print (type, found)

[harleydude]

Finally got it.

local search_in = "Content-Type: text/plain; charset=iso-8859-1"
local _,_, type, found = string.find(search_in, ":%s?(.+);(.-)")
if not type then
_,_, type = string.find(search_in, ":%s?(.+)")
end

[theguywiththefunnyhair]

s w e e t !