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External
Since: Dec 19, 2003
Posts: 39
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(Msg. 1) Posted: Sun Aug 24, 2008 11:04 am
Post subject: Newbie: working with lists
Archived from groups: alt>comp>lang>applescript (more info?)
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I am fairly new to AppleScript (but have been programming in other languages
for a long time).
I want to sort a list of 1000+ contact records (about 6 fields in each
record). I would probably do this with an array in another language. I think
AS uses "lists". When I google "applescript lists" (etc) it get a lot of
hits, but not really ones related to my real questions.
1. Is a list the best/correct way to do this?
2. What would the sample syntax be for populating this list (Sort fields:
"last name", name, phone1, phone2, email)?
3. What is the syntax to refer to field1 (last name) after passing the list
to the sort?
4. Memory wise, would a older Mac with 512MB RAM have a problem with a list
of this size?
Thanks for your help |
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External
Since: Mar 21, 2006
Posts: 1688
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(Msg. 2) Posted: Sun Aug 24, 2008 11:04 am
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Dec 19, 2003
Posts: 39
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(Msg. 3) Posted: Sun Aug 24, 2008 12:54 pm
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Dave Balderstone" wrote in message
> In article , Jack B.
> Pollack wrote:
>
> > I am fairly new to AppleScript (but have been programming in other
languages
> > for a long time).
> >
> > I want to sort a list of 1000+ contact records (about 6 fields in each
> > record).
>
> What application?
>
> > would probably do this with an array in another language. I think
> > AS uses "lists". When I google "applescript lists" (etc) it get a lot of
> > hits, but not really ones related to my real questions.
> >
> > 1. Is a list the best/correct way to do this?
>
> In AS, yes. There are available handlers to do it, so you don't have to
> reinvent the wheel.
>
> > 2. What would the sample syntax be for populating this list (Sort
fields:
> > "last name", name, phone1, phone2, email)?
>
> What application? Or, are you going to export them to a text file, sort
> that, then reimport?
>
> > 3. What is the syntax to refer to field1 (last name) after passing the
list
> > to the sort?
>
> Don't worry about it. Use an available handler. ie:
> <http://bbs.macscripter.net/viewtopic.php?pid=89978>
>
> > 4. Memory wise, would a older Mac with 512MB RAM have a problem with a
list
> > of this size?
>
> Running what OS/what version of Applescript?
>
> I would probably take the approach of creating a list of lists, IOW, a
> list of each of your lists of contact record fields, and then sort
> that.
>
Thanks for your reply.
>> I want to sort a list of 1000+ contact records (about 6 fields in each
record).
> What application?
The source is the Mac address book. I already have written so code to
extract the data, but the data is unsorted.
> What application? Or, are you going to export them to a text file, sort
> that, then reimport?
I would like to sort them in memory if possible.
> Running what OS/what version of Applescript?
This will probably have to run on OS 10.3 - 10.5, systems may have as low as
512MB. Is it realistic to sort a list of this size in memory?
> Don't worry about it. Use an available handler. ie:
> <http://bbs.macscripter.net/viewtopic.php?pid=89978>
I already have some sort code (or I can use link you provided), my question
is the syntax to create a "list" and then how to refer to elements of the
list.
Thanks >> Stay informed about: Newbie: working with lists |
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External
Since: Jul 15, 2003
Posts: 3627
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(Msg. 4) Posted: Sun Aug 24, 2008 12:54 pm
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Mar 21, 2006
Posts: 1688
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(Msg. 5) Posted: Sun Aug 24, 2008 12:54 pm
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Dec 19, 2003
Posts: 39
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(Msg. 6) Posted: Sun Aug 24, 2008 7:39 pm
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Michelle Steiner" wrote in message
> In article ,
> "Jack B. Pollack" wrote:
>
> > I already have some sort code (or I can use link you provided), my
> > question is the syntax to create a "list" and then how to refer to
> > elements of the list.
>
> In pure Applescript, there are lists and there are records. Records
> have labels, lists do not.
>
> This is a record:
> set theRecord to {firstName:"michelle", lastName:"steiner",
> phoneNumber:"480-555-1234"}
>
> This is a list:
> set theList to {"michelle", "steiner", "480-555-1234"}
>
> Records, by their very nature, are unordered; you can't address items by
> ordinality because they don't have that nature. "Item 1 of rec" does
> not make sense. Therefore, you cannot sort records.
>
> You can make a list of records, such as
> set listOfRecords to {{firstName:"michelle", lastName:"steiner",
> phoneNumber:"480-555-1234"},{firstName:"john", lastName:"smith",
> phoneNumber:"480-555-1235"}}
>
> But I wouldn't know how to sort that.
>
Thanks for clarifying. Gona play around. >> Stay informed about: Newbie: working with lists |
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External
Since: Dec 19, 2003
Posts: 39
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(Msg. 7) Posted: Sun Aug 24, 2008 7:40 pm
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Dave Balderstone" wrote in message
> In article , Jack B.
> Pollack wrote:
>
> > Thanks for your reply.
> >
> > >> I want to sort a list of 1000+ contact records (about 6 fields in
each
> > record).
> > > What application?
> >
> > The source is the Mac address book. I already have written so code to
> > extract the data, but the data is unsorted.
>
> The sample code below will let you sort on any field in each record,
> once the data is in a a"list of lists" format.
>
> >
> > > What application? Or, are you going to export them to a text file,
sort
> > > that, then reimport?
> > I would like to sort them in memory if possible.
>
> Yes.
>
> > > Running what OS/what version of Applescript?
> > This will probably have to run on OS 10.3 - 10.5, systems may have as
low as
> > 512MB. Is it realistic to sort a list of this size in memory?
>
> I'd think so. The only effect of low memory should be increasing the
> run time.
>
> >
> > > Don't worry about it. Use an available handler. ie:
> > > <http://bbs.macscripter.net/viewtopic.php?pid=89978>
> > I already have some sort code (or I can use link you provided), my
question
> > is the syntax to create a "list" and then how to refer to elements of
the
> > list.
>
> Creating a list can be done in a number of ways. Normally I would
> iterate through the data, adding each item to the end of the list
> (watch the text wrap):
>
>
> -- begin script
>
> set old_delims to AppleScript's text item delimiters
> set theUnsorted to {}
> set theData to "balderstone,dave,306-555-1212
> pollack,jack,234-555-1212
> adams,douglas,345-555-1212"
> set AppleScript's text item delimiters to return
> repeat with x from 1 to count of text items of theData
> set end of theUnsorted to text item x of theData
> end repeat
>
> (*
> {
> "balderstone,dave,306-555-1212",
> "pollack,jack,234-555-1212",
> "adams,douglas,345-555-1212"
> }
> *)
>
> set AppleScript's text item delimiters to old_delims
>
> my bubblesort(theUnsorted, 1)
> set TheSorted to the result
> return TheSorted
>
> (*
> {
> "adams,douglas,345-555-1212",
> "balderstone,dave,306-555-1212",
> "pollack,jack,234-555-1212"
> }
> *)
>
> on bubblesort(theList, sortIndex)
> -- bubble sort a list of sublists by a certain index place in each
> sublist
> set theSize to length of theList
> repeat with i from 1 to theSize
> repeat with j from 2 to (theSize - i + 1)
> if ((item sortIndex of item (j - 1) of theList) > (item
> sortIndex of item j of theList)) then
> set temp to (item (j - 1) of theList)
> set (item (j - 1) of theList) to (item j of theList)
> set (item j of theList) to temp
> end if
> end repeat
> end repeat
> return theList
> end bubblesort
>
> -- end script
>
> --
Thanks. I will play around with this tomorrow. I cant see straight anymore
tonight  >> Stay informed about: Newbie: working with lists |
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External
Since: Dec 19, 2003
Posts: 39
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(Msg. 8) Posted: Mon Aug 25, 2008 10:25 am
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Dave Balderstone" wrote in message
> In article , Jack B.
> Pollack wrote:
>
> > Thanks for your reply.
> >
> > >> I want to sort a list of 1000+ contact records (about 6 fields in
each
> > record).
> > > What application?
> >
> > The source is the Mac address book. I already have written so code to
> > extract the data, but the data is unsorted.
>
> The sample code below will let you sort on any field in each record,
> once the data is in a a"list of lists" format.
>
> >
> > > What application? Or, are you going to export them to a text file,
sort
> > > that, then reimport?
> > I would like to sort them in memory if possible.
>
> Yes.
>
> > > Running what OS/what version of Applescript?
> > This will probably have to run on OS 10.3 - 10.5, systems may have as
low as
> > 512MB. Is it realistic to sort a list of this size in memory?
>
> I'd think so. The only effect of low memory should be increasing the
> run time.
>
> >
> > > Don't worry about it. Use an available handler. ie:
> > > <http://bbs.macscripter.net/viewtopic.php?pid=89978>
> > I already have some sort code (or I can use link you provided), my
question
> > is the syntax to create a "list" and then how to refer to elements of
the
> > list.
>
> Creating a list can be done in a number of ways. Normally I would
> iterate through the data, adding each item to the end of the list
> (watch the text wrap):
>
>
> -- begin script
>
> set old_delims to AppleScript's text item delimiters
> set theUnsorted to {}
> set theData to "balderstone,dave,306-555-1212
> pollack,jack,234-555-1212
> adams,douglas,345-555-1212"
> set AppleScript's text item delimiters to return
> repeat with x from 1 to count of text items of theData
> set end of theUnsorted to text item x of theData
> end repeat
>
> (*
> {
> "balderstone,dave,306-555-1212",
> "pollack,jack,234-555-1212",
> "adams,douglas,345-555-1212"
> }
> *)
>
> set AppleScript's text item delimiters to old_delims
>
> my bubblesort(theUnsorted, 1)
> set TheSorted to the result
> return TheSorted
>
> (*
> {
> "adams,douglas,345-555-1212",
> "balderstone,dave,306-555-1212",
> "pollack,jack,234-555-1212"
> }
> *)
>
> on bubblesort(theList, sortIndex)
> -- bubble sort a list of sublists by a certain index place in each
> sublist
> set theSize to length of theList
> repeat with i from 1 to theSize
> repeat with j from 2 to (theSize - i + 1)
> if ((item sortIndex of item (j - 1) of theList) > (item
> sortIndex of item j of theList)) then
> set temp to (item (j - 1) of theList)
> set (item (j - 1) of theList) to (item j of theList)
> set (item j of theList) to temp
> end if
> end repeat
> end repeat
> return theList
> end bubblesort
>
> -- end script
>
Dave,
The script compiles OK, but theSorted list appears to be the same as
theUnsorted after calling the function >> Stay informed about: Newbie: working with lists |
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External
Since: Mar 21, 2006
Posts: 1688
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(Msg. 9) Posted: Mon Aug 25, 2008 10:25 am
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Dec 19, 2003
Posts: 39
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(Msg. 10) Posted: Mon Aug 25, 2008 10:45 am
Post subject: Re: Newbie: working with lists [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Dave Balderstone" wrote in message
> In article , Jack B.
> Pollack wrote:
>
> > The script compiles OK, but theSorted list appears to be the same as
> > theUnsorted after calling the function
>
> Post your data and I'll have a look. If you don't want to post it
> publicly, you can email it to me.
>
> I'll dig into it after work.
>
> --
> I kill all messages, and replies to messages, from Google Groups. See
> http://improve-usenet.org for details.
Much appreciated. >> Stay informed about: Newbie: working with lists |
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