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And yet I still can't get my head around upvars. I really like TCL, I've been using it in conjunction with NaviServer known as AOLServer back in the day (which

And yet I still can't get my head around upvars. I really like TCL, I've been using it in conjunction with NaviServer known as AOLServer back in the day (which mind you has some interesting history). TCL is a fun little language and combined with Navi -- you can really create some crafy webapps.

mapgrep 7y ago
Did you come into aolserver via Philip greenspun and arsdigita like so many folks?
- doublerabbit 7y ago
  Not really, I've come from perl. My half built web project is still sitting stable as ever since not touching it in many months, looking at it; it's like entering a overgrown temple. Knowing if you make an alteration the whole temple can collapse. TCL just seemed to fit and discovering naviserver could do "register domain/home execute procedure return html" without having to create a mess of routes, models and all the rest just kind of made me happy.
takeda 7y ago
> And yet I still can't get my head around upvars. I haven't used Tcl for maybe 15 years, but if I recall correctly upvar was basically an alternative to lack of pointers. What it was doing was giving you access to a variable from specific stack frame. You could say I want to access variable from the function that called me. upvar and it's interesting syntax allowed to create new "statements" for example in earlier versions of tcl (because looks like it was added later) you could implement try-catch "statement" and it would behave as if it was part of the language.
- RHSeeger 7y ago
  > upvar and it's interesting syntax allowed to create new "statements" for example in earlier versions of tcl (because looks like it was added later) you could implement try-catch "statement" and it would behave as if it was part of the language. This is one of the things I miss most when using other languages. Outside of actual lisps (of which I consider Tcl to be one), there's very few languages that allow you to build your own control structures. Ruby comes close, but doesn't really have the same flexibility.
- takeda 7y ago
  Here is the recipe I was referring to: http://code.activestate.com/recipes/68396-try-catch-finally/ http://code.activestate.com/recipes/68396-try-catch-finally/

mapgrep 7y ago

Did you come into aolserver via Philip greenspun and arsdigita like so many folks?

doublerabbit 7y ago
Not really, I've come from perl. My half built web project is still sitting stable as ever since not touching it in many months, looking at it; it's like entering a overgrown temple. Knowing if you make an alteration the whole temple can collapse. TCL just seemed to fit and discovering naviserver could do "register domain/home execute procedure return html" without having to create a mess of routes, models and all the rest just kind of made me happy.

takeda 7y ago

> And yet I still can't get my head around upvars. I haven't used Tcl for maybe 15 years, but if I recall correctly upvar was basically an alternative to lack of pointers. What it was doing was giving you access to a variable from specific stack frame. You could say I want to access variable from the function that called me. upvar and it's interesting syntax allowed to create new "statements" for example in earlier versions of tcl (because looks like it was added later) you could implement try-catch "statement" and it would behave as if it was part of the language.

RHSeeger 7y ago
> upvar and it's interesting syntax allowed to create new "statements" for example in earlier versions of tcl (because looks like it was added later) you could implement try-catch "statement" and it would behave as if it was part of the language. This is one of the things I miss most when using other languages. Outside of actual lisps (of which I consider Tcl to be one), there's very few languages that allow you to build your own control structures. Ruby comes close, but doesn't really have the same flexibility.
takeda 7y ago
Here is the recipe I was referring to: http://code.activestate.com/recipes/68396-try-catch-finally/ http://code.activestate.com/recipes/68396-try-catch-finally/