I like the idea of design by contract especially when combined with Brendan's stack trace. Very useful.
I wonder firstly if it could be used in a generic sense, by combining the pre and post conditions with your UserError assert functionality.
Having a generic anywhere/anytime situation combining the best of both methods pre/post and inside functions too.
Perhaps you would be able to do different things whether you are in debug mode (throw it up to the console etc) or in production mode (especially for input errors it would be great it you could somehow "rollback" to before the erroneous user input).

(From Alex: I would welcome any code you want to write to make it better! I don't quite follow how to do a rollback.)

I hope my little comments are sufficient to get one :)

you are giving them too easy away :
http://bmlk.blogspot.com/2004_09_01_bmlk_archive.html#109458393299168096

(From Alex: Oh, hush! 8) )

Hi.

I posted something under:
http://weblogs.mozillazine.org/weirdal/archives/005612.html

Or atleast I think I did... ;)

For what its worth, I could really use a GMail account. I cannot reach my work mail from outside the office and own mail from work... And I have over gigabyte of mail dumped from work account, and now needs sorting out...

BTW: I did mean it, when I wrote about needing commond code base to jumpstart development of special purpose xml-editor...

Hi , You'd better add a catalog for your blog.

And I need one gmail account .Can you give me one? Plz mail to xpwang@21cn.com

Hi ,I need one gmail account.

Plz mail to xpwang@21cn.com

For you blogs, you'd better add a catalog.

Well, it's difficult to give feedback to things like the link to SVG+XBL except of saying thank you. Which I certainly will do more for a nice GMail account. ;) I really do appreciate links and hints and all that but I rarely have to add something which matters (like here of course).

I'd very much like an invite.

If you want I can donate another 5 invites to people you deem deserve them.

Carlos

(From Alex: That won't be necessary, Carlos. I'll probably be receiving more invites soon. But thanks for the offer!)

Hey, can I get one? I did respond to one of your other posts in the august archive...

I've nosed around and most of what you play with is beyond me. I've done small amounts of programming but no where near the extent you do. Keep it up! Your college dilema is one that I once faced. The old cartoon about resisting email only to find nothing but spam was perfect - made my day in fact. Experiencing the over abundance of spam is how I came across your blog. Personal email gets lost among the garbage and I was hoping to find an invite out there some where. If you have 1 to spare, you would have my everlasting gratitude. If not, I totally understand.

Don't lose site of your passion.

Also, the people who don't get lucky here (pardon the pun). I've got 5 invites left atm, so just mail me your name and email via the contact form on my webpage. (Click my name)

PS. Only trying to help out people here, not trying to steal your visitors ;)

How is the college search going? Take a few classes at night to get yourself going. You might not need to do formal applications.

If you have a Gmail invite, I would like to see if I could fill the thing up. Gonna be hard, but worth a try.

Good Luck. Thanks.

Well, I'll be honest, I never read your blog until I saw you had gmail invites. But I did go through and read some in August in Sept so you could feel better :)

Personally I think college is far over-rated, especially if you're gonna do technology. I just left college this semester and am learning so much more and enjoy the extra freedom. But to each his own

I have no idea what to do with a gig of email space, but I'd appreciate getting access to your javascript book manuscript.

i am giving out gmail invites for the first people to find the following php nuke 7.4 blocks:
yahoo block,
gmail block
msn block
everyone.net
they r all for email checking

give me a Gmail invite, please``!

What is this about gmail... i think i want to be invited to this club...

hit me up with info.

somedudebrokemywindow@yahoo.com

Please if someone has on egmail invite post me, it is really important. Thank you:)
my mail sabrinai@inbox.lv

heyyyyyyy .......
i got one gmail ......... its lovely

Hey guyz,
If anyonez kind enough to send a gmail invite...would be greatly appreciated.

Please consider,
Thanks in advance,

Jäs :o)

I have been looking for a gmail invite a long time now could i please get one?

Hey all,

Would really appreciate a gmail invite if anyone has an extra lying around. Thanks a lot in advance!

Sham8037@aol.com

Scott