Re: joining lists in lingo

Buzz Kettles Mon, 11 Apr 2005 14:43:33 -0700

At 8:17 PM +0200 4/11/05, you wrote:

... and it's "dangerous" if you want to user other value types than
numbers.
as an example, try
put value( string( [1,2,3,QUOTE] ))

Valentin

I was going to mention this aspect too, but figured the performance difference was enough of a good enough reason.

Many people don't find out about list-to-string mutation until they write some big list out & then it doesn't come back as they expected - then they watch the process closely & see what is really going on.

-Buzz

Buzz Kettles wrote:

 While the below looks good, doing the 2 list-to-string conversions
 make that approach much slower than repeat-and-append.

 hth
 -Buzz

At 4:09 PM +0200 4/11/05, you wrote:

 Hi Tim,
 maybe this could fit....
 ----------------------------------------
 list1 = [1,2,3,4]
 list2 = [5,6,7,8]
 ---
 s1 = string(list1)
 s2 = string(list2)
 ---
 res1 = s1.char[1..s1.length - 1]
 res2 = s2.char[2..s2.length]
 ---
 put value(res1 & "," & res2)
 -- [1, 2, 3, 4, 5, 6, 7, 8]
 ----------------------------------------

Dam

On Apr 11, 2005 3:16 PM, Valentin Schmidt <[EMAIL PROTECTED]> wrote:

  Hi Tim,

  it won't help you in this situation, but in DMX2004 for javascript
  there is the concat() function for arrays:

  var a = Array(1,2,3);
  var b = Array(4,5,6);
  trace(a.concat(b));
  // 1,2,3,4,5,6

  Valentin


  Tim Welford wrote:
  > Hi,
  >
  > Thanks, that's similar to the method I am using at the moment. I
  was > hoping for some undocumented way of doing a simple join to
  get rid of > the repeat loop and hence improve the efficiency of
  the code. >
  > -----Original Message-----
  > From: [EMAIL PROTECTED]
  > [mailto:[EMAIL PROTECTED] On Behalf Of Ozkan
  > ALTUNER
  > Sent: 11 April 2005 13:15
  > To: Lingo programming discussion list
  > Subject: Re: <lingo-l> joining lists in lingo
  >
  > Hello Tim,
  >
  > You can do it by appending list two to list one, by using a loop
  and > getAt(), getPropAt(), addProp() and addAt() methods.
  >
  > repeat with i = 1 to list2.count()
  >   addProp(list1, getAt(list2, i)
  > end repeat
  >
  > i'm not exatcly sure of the syntax, however, it clearly should

 >>>  give > you
 >>>  > an idea.
 >>>  >
 >>>  > Ciao,
 >>>  > Ozkan
 >>>  >
 >>>  >
 >>>  > -----Orjinal mesaj-----
 >>>  > From: "Tim Welford" [EMAIL PROTECTED]
 >>>  >
 >>>  > Date: Mon, 11 Apr 2005 14:28:10 +0300

  > > To: lingo-l@penworks.com
  > > Subject: <lingo-l> joining lists in lingo
  > >
  > >> Greetings List...
  > >>
  > >> I'm sure this is a daft question, but it escapes me.
  > >> Is there away of joining 2 lists together other than looping
 through

  > the
  >> second list and using .add to add it to the first list.
  >>
  >> i.e.
  >> list1 = [1,2,3,4]
  >> list2 = [5,6,7,8]
  >>
  >> list1 + list2 = [1,2,3,4,5,6,7,8]
  >>
  >> rather than a result of [6,8,10,12]
  >> or [1,2,3,4,[5,6,7,8]]
  >>
  >> This is just an example, I actually need to do it with a list of
  >> property lists, whilst the list is quite complicated, the
  format of > the
  >> 2 lists being joined will always be exactly the same, although
  the >> number of elements may change.
  >>
  >> Thanks
  >>
  >> Tim
  >>
  >>
  >> [To remove yourself from this list, or to change to digest
  mode, go >> to
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  list, > email
  > lingo-l@penworks.com  (Problems, email [EMAIL PROTECTED]).
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>>> the list, > email

  > lingo-l@penworks.com  (Problems, email [EMAIL PROTECTED]).
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  Thanks!] >
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  >
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Re: joining lists in lingo

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