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Inverse append

 [1/6] from: lethalman:fyrebird at: 17-Oct-2004 14:56


Is there a function like append but that insert a value at the beginning of another one? c: [] a: "test 2" b: [] append b a c: join b c a: "test" b: [] append b a c: join b c c == ["test" "test 2"] -- Fyrebird Hosting Provider - Technical Department

 [2/6] from: andreas:bolka:gmx at: 17-Oct-2004 15:06


Sunday, October 17, 2004, 2:56:17 PM, Lethalman wrote:
> Is there a function like append but that insert a value at the > beginning of another one?
insert
>> ? insert
USAGE: INSERT series value /part range /only /dup count DESCRIPTION: Inserts a value into a series and returns the series after the insert. INSERT is an action value. ARGUMENTS: series -- Series at point to insert (Type: series port bitset) value -- The value to insert (Type: any-type) REFINEMENTS: /part -- Limits to a given length or position. range -- (Type: number series port) /only -- Inserts a series as a series. /dup -- Duplicates the insert a specified number of times. count -- (Type: number) -- Best regards, Andreas

 [3/6] from: lethalman:fyrebird at: 17-Oct-2004 15:11


Andreas Bolka wrote:
>Sunday, October 17, 2004, 2:56:17 PM, Lethalman wrote: >>Is there a function like append but that insert a value at the
<<quoted lines omitted: 19>>
> /dup -- Duplicates the insert a specified number of times. > count -- (Type: number)
Ehm, es i found it but i didn't understand how to use it, made several tests... My english is not so good sorry :( -- Fyrebird Hosting Provider - Technical Department

 [4/6] from: lethalman::fyrebird::net at: 17-Oct-2004 15:13


Lethalman wrote:
>Andreas Bolka wrote: >>Sunday, October 17, 2004, 2:56:17 PM, Lethalman wrote:
<<quoted lines omitted: 45>>
>tests... >My english is not so good sorry :(
Sorry, insert c "test" works fine -- Fyrebird Hosting Provider - Technical Department

 [5/6] from: andreas::bolka::gmx::net at: 17-Oct-2004 17:18


Sunday, October 17, 2004, 3:11:38 PM, Lethalman wrote:
> Andreas Bolka wrote: >>Sunday, October 17, 2004, 2:56:17 PM, Lethalman wrote:
<<quoted lines omitted: 4>>
> several tests... My english is not so good sorry :( >> c: copy []
== []
>> insert c "test 2"
== []
>> c
== ["test 2"]
>> insert c "test"
== ["test 2"]
>> c
== ["test" "test 2"] please note that insert returns the series (the block) at the position _after_ the inserted item (that's the reason why the 2nd statement in the above example returns a seemingly empty block). -- Best regards, Andreas

 [6/6] from: AJMartin::orcon::net::nz at: 18-Oct-2004 4:31


Lethalman wrote:
> Is there a function like append but that insert a value at the beginning > of another one?
You might also be interested in 'Push: Push: func [ "Inserts a value into a series and returns the series head." Stack [series! port! bitset!] "Series at point to insert." Value [any-type!] /Only "The value to insert." ][ head either Only [ insert/only Stack :Value ][ insert Stack :Value ] ] Together with 'Pop and 'Top, this allows making stacks. --- Andrew Martin ICQ: 26227169 http://www.rebol.it/Valley/ http://valley.orcon.net.nz/ http://valley.150m.com/

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