AutoHotkey Community

I'm using cURL as part of an AHK script to FORM submit "multipart/form-data".
Everything works fine except where I have newline (`n) in the forms 'comment' field (so the user can type in comments etc to go with the upload) , but this stops cURL from submitting the data.
I have tried stringreplace `n with things like %0D%0A, but it just comes through literally and not as a newline.

I assume the problem lies in AHK interpreting the `n as a break in what is otherwise a single continuous line of text. cURL seems to convert everything it receives perfectly, so i must be missing some formatting/stringreplace/conversion in AHK before i feed cURL the command string.

What am i forgetting to do?

Not sure, but IIRC:
1) Mime uses CR+LF as line break, so you can try and replace the `n with `r`n sequence;
2) its escape sequence is =HH, eg. =3D for the equal sign, =A0 for the euro sign in ISO-8859-1, and so on. So perhaps =0A can be used for a line break, if the first solution doesn't work.

[EDIT] I gave =10 for newline, ie. the decimal value instead of the hexa one. Doh!

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vPhiLho := RegExReplace("Philippe Lhoste", "^(\w{3})\w*\s+\b(\w{3})\w*$", "$1$2")

hmmm...
http://www.bbsinc.com/iso8859.html
line feed, new line LF, NL ^J 0A
...

lets say i enter this:

the newline is actually an `n (i checked)

if i do this:

I get this: (as you would expect)


...and of course if i stringreplace `n with `r`n it just munches the COMMANDLINE with a carriage return in the middle of it.

If I convert the `n to a %0D%0A or =10 etc it just goes through cURL literally, so evidently I need to use something that cURL will translate correctly, but will not prematurely terminate/linefeed the command line in AHK that i am feeding to cURL.

I'm tired, so this is probably something really simple.

Maybe you have to specify data transfer mode?

--use-ascii

or

--data
--data-ascii
--data-binary

Two other ideas:
1) Try \n, perhaps cURL can intepret it.
2) Put the comment in a file, and load it with @

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vPhiLho := RegExReplace("Philippe Lhoste", "^(\w{3})\w*\s+\b(\w{3})\w*$", "$1$2")

If you're going to use PhiLho's second suggestion, you may consider to use StdIn method:
http://www.autohotkey.com/forum/viewtopic.php?t=16823

If I'm not mistaken this would effect the file transfer, and not the input of form <input> fields... But I'll put that at the bottom of the list of things to try.


A quick read of that gives me the feeling that it's a bit more involved/complex than I need. So I'll try that later too.
I've marked it as "probably going to be useful for something else later" though, it looks very useful.


Yes, this occurred to me last night as I was trying to get to sleep; but not the way you say above: but rather that it would be a simple matter to use the same method I have been using to insert another field using a pipe:
ie:


So I will try substituting this <filename.ext method to pipe in the comments as well. I'm fairly sure that will work.

[edit] Update: yep, worked perfectly. As a bonus; very few code additions/changes were required.