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Re: regular expressions for CGI input/env

From: Aleksandar Susnjar <shule@planetintra.com>
Date: Sat, 30 Dec 2000 10:43:11 -0500
Message-ID: <001601c07277$3889bf00$3c1ee218@wido1.on.home.com>
To: "Gustavo Vieira Goncalves Coelho Rios" <gustavo@ifour.com.br>
Cc: <www-html@w3.org>
Have a look here (in no particular order of importance):

http://www.w3.org/Protocols/rfc2616/rfc2616.html (Hypertext Transfer
Protocol -- HTTP/1.1)
http://info.internet.isi.edu/in-notes/rfc/files/rfc2396.txt (Uniform
Resource Identifiers (URI): Generic Syntax
)
http://info.internet.isi.edu/in-notes/rfc/files/rfc2388.txt (Returning
Values from Forms:  multipart/form-data
)
http://info.internet.isi.edu/in-notes/rfc/files/rfc1867.txt (Form-based File
Upload in HTML)

http://hoohoo.ncsa.uiuc.edu/cgi/forms.html (Decoding FORMs with CGI)

Hope this helps,

Aleksandar Susnjar

----- Original Message -----
From: "Gustavo Vieira Goncalves Coelho Rios" <gustavo@ifour.com.br>
To: "Aleksandar Susnjar" <shule@planetintra.com>
Cc: <www-html@w3.org>
Sent: Saturday, December 30, 2000 2:31 AM
Subject: Re: regular expressions for CGI input/env


> Aleksandar Susnjar wrote:
> >
> > Key characters are:
> >
> > '?' - starts the form data portion in the URL-Encoded (HTTP GET method)
form
> > URL
> > '&' - separates name-value pairs
> > '=' - separates names and values
> > '%' - begins a two-digit hex literal
> > '+' - used instead of a space (standard, although Microsoft oftenly
replaces
> > it with %20)
> > ' ' (space) - must be replaced with either '+' or '%20'
> >
> > If need to be specified, abovementione characters and non-characters (0
<=
> > code < 32) must be specified using their alternative form (e.g. hex form
> > %xx). All other characters (including char codes greater than 127)
should be
> > fine, but if you are only interested in parsing the received input and
not
> > generating it you only need to know the following:
> >
> > '?' - starts the form data portion in the URL-Encoded (HTTP GET method)
form
> > URL
> > '&' - starts a new name-(value) pair
> > '=' - separates names and values; NOTE: sometimes only name is
specified -
> > there is no value (e.g. checkboxes); in this case no '=' is used
> > '%' - begins a two-digit hex literal - next two characters are to be tre
ated
> > as a hex code of the character. If hex digits characters are invalid
assume
> > that the client got it wrong and that the '%' did not start a hex code
...
> > but is just what it already is - a '%'. Continue parsing with the
character
> > immediatelly after '%' - not after the 'digits' and do not put the
digits
> > immediatelly in the buffer/output.
> > '+' - means (should be replaced with a) space
> > ' ' (space) - If you get it and you know that it IS a part of the data,
then
> > consider it a space ... but it should not be like that...
>
> I need to generate the output, so, i need to known all the caracters
> encodable!
>
> One more last thing: can some here point to a source of documentation
> for multipart form, cause i need to upload files from client
> workstation.
>
Received on Saturday, 30 December 2000 10:43:36 GMT

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