Re: [NTG-context] Downloading long urls

[Hans Hagen]

On 23-1-2011 9:34, Aditya Mahajan wrote:
On Sun, 23 Jan 2011, Hans Hagen wrote:
On 22-1-2011 1:20, Aditya Mahajan wrote:

A simple algorithm with assume that everything following the dot is the
extension, while that is certainly not the case here. We can definitely
restrict the search of extension to the last 10 or so characters of the
url, but there will be cases when such heuristics will fail.

it's not that complicated ... say that you patch this way:

function schemes.cleanname(specification)
return (gsub(specification.original,"[^%a%d%.]+","-"))
end

local function fetch(specification)
local original = specification.original
local scheme = specification.scheme
local cleanname = schemes.cleanname(specification)

that will be the current method. Now you can experiment with:

Can cleanname be passed as a parameter of the specification? Then we can
have

local cleanname = specification.cleanname or
schemes.cleanname(specification)

This way, I can only change the cleanname of the files that are
downloaded by my module without affecting the cleanname for any other
command that might want to download a file.

I made this ... as this is rather specialized tuning (that might confuse 
users) it's a directive:

\starttext

\enabletrackers [resolvers.schemes]
\enabledirectives[schemes.cleanmethod=md5]

\externalfigure[http://contextgarden.files.wordpress.com/2008/08/logo-alt41.png][width=3cm]
\externalfigure[http://contextgarden.files.wordpress.com/2008/08/logo-alt41.png][width=3cm]
\externalfigure[http://contextgarden.files.wordpress.com/2008/08/logo-alt41.png][width=3cm]

\stoptext

currently 'strip' is default but we can decide on md5

Hans

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                                          Hans Hagen | PRAGMA ADE
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