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2-May 13:22 UTC
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Mailing List Archive: 49091 messages
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list length

 [1/4] from: ammoncooke:y:ahoo at: 30-May-2001 19:28


Hi, I am trying to compare the length of two text-lists. This is the code I am using to get the length: lst1-len: lst1/text: to-integer length? lst1/data when the list has 20 items in it this code returns 2 when the list has 8 it returns 8 Thanks!! Ammon

 [2/4] from: carl:cybercraft at: 31-May-2001 15:32


On 30-May-01, Ammon Cooke wrote:
> Hi, > I am trying to compare the length of two text-lists. This is the
<<quoted lines omitted: 4>>
> Thanks!! > Ammon
You're almost there. As the list is a block it's index can move which will be (I assume) the cause of the differing results you got above. For instance...
>> view layout[a-list: text-list "aa" "bb" "cc" "dd"] >> a-list/data
== ["aa" "bb" "cc" "dd"]
>> length? a-list/data
== 4
>> a-list/data: next a-list/data
== ["bb" "cc" "dd"]
>> length? a-list/data
== 3 All the data's still there though, as can be seen if we get the length from the head of the list...
>> length? head a-list/data
== 4 So, just place 'head before your lst1/data and you should always get the length of the full list. -- Carl Read [carl--cybercraft--co--nz]

 [3/4] from: arolls:bigpond:au at: 31-May-2001 16:35


Also note that length? lst1/data is already an integer, and need not be converted to an integer again with 'to-integer. You would probably want something more like: lst1-len: length? lst1/data lst1/text: to-string lst1-len or lst1/text: to-string lst1-len: length? lst1/data Anton.

 [4/4] from: ammoncooke::yahoo::com at: 31-May-2001 13:43


Thanks!! Your fix didn't exactly fix the problem you attempted to fix, but rather another bug I needed to fix! You see I set a text object to the value of "0" as a default then to test the text-list's length! I copied the lenth! to the /text of the text object, but for some reason text objects do not resize themselves so.... What it did fix was the fact that by runnning the code: lst1-len: lst1/text: to-integer length! lst1/data I was actually changing th value of lst1/text, I didn't realize this. Thanks Again Ammon What a list!!
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