Re: [Pharo-users] can I divide a string into part of exactly n length

[Ben Coman]

On Tue, 28 Apr 2020 at 01:08, Roelof Wobben via Pharo-users <
pharo-users@lists.pharo.org> wrote:

> Op 27-4-2020 om 19:05 schreef Richard Sargent:
>
> On Mon, Apr 27, 2020 at 9:27 AM Roelof Wobben via Pharo-users <
> pharo-users@lists.pharo.org> wrote:
>
>> Hello,
>>
>> I wonder if it is possible in Pharo to divide a string in lets say part
>> of 3.
>> so this :  'abcdefgh'
>>
>> would be  'abc def gh`
>>
>
> Do you really want a single string with spaces inserted or do you want a
> collection of substrings, each three characters (or less, for the last one)?
>
>
> I need a single string with spaces inserted.
> So maybe I have formulate my question wrong. Very difficult if English is
> not your mother language and you were bad at school in languages a very
> very long ago.
>

I didn't previously know of a method to do this, but I "guessed" what you
needed might be related to "grouping", so I did...
'abcd' inspect.
then in the Meta tab, starting at Collection, filtered on
 group*
and worked up the hierarchy discovering #groupsOf:atATimeDo: in
SequenceableCollection,
which guesswork found could work like this...
```
input := 'abcdefghijk'.
stream := String streamContents: [:s | input groupsOf: 3 atATimeDo: [
:group | s nextPutAll: group; nextPutAll: ' ']].
stream contents inspect.
```

One of the skills a new programmer needs to develop is to make those
educated "guesses"
and know where/how to test them.

So I learnt a new method today. thx.
cheers -ben

Re: [Pharo-users] can I divide a string into part of exactly n length

[Richard O'Keefe]

|s1 s2|
s1 := 'abcdefghijk'.
s2 := String streamContents: [:s |
  s1 keysAndValuesDo: [:index :each |
(index \\ 3 = 1 and: [1 < index])
  ifTrue: [s space].
s nextPut: each]].

is perhaps a little simpler.  I generally prefer to have Smalltalk
do the counting for me.

On Tue, 28 Apr 2020 at 07:25, Todd Blanchard via Pharo-users
 wrote:
>
> This works
>
> | s1 s2 |
> s1 := 'abcdefghijk'.
> s2 := String streamContents: [:s || in len |
>in := ReadStream on: s1.
>len := 0.
>[in atEnd] whileFalse: [
>   s nextPut: in next.
>   len := len + 1.
>   (in atEnd not and: [ (len \\ 3) = 0]) ifTrue: [ s space ] ] ]
>
> On Apr 27, 2020, at 10:07 AM, Roelof Wobben via Pharo-users 
>  wrote:
>
>
> From: Roelof Wobben 
> Subject: Re: [Pharo-users] can I divide a string into part of exactly n length
> Date: April 27, 2020 at 10:07:41 AM PDT
> To: Richard Sargent , Any question about 
> pharo is welcome 
>
>
> Op 27-4-2020 om 19:05 schreef Richard Sargent:
>
> On Mon, Apr 27, 2020 at 9:27 AM Roelof Wobben via Pharo-users 
>  wrote:
>>
>> Hello,
>>
>> I wonder if it is possible in Pharo to divide a string in lets say part
>> of 3.
>> so this :  'abcdefgh'
>>
>> would be  'abc def gh`
>
>
> Do you really want a single string with spaces inserted or do you want a 
> collection of substrings, each three characters (or less, for the last one)?
>
>
> I need a single string with spaces inserted.
> So maybe I have formulate my question wrong. Very difficult if English is not 
> your mother language and you were bad at school in languages a very very long 
> ago.
>
> Roelof
>
>
>
>

Re: [Pharo-users] can I divide a string into part of exactly n length

[Todd Blanchard via Pharo-users]

--- Begin Message ---
This works

| s1 s2 |
s1 := 'abcdefghijk'.
s2 := String streamContents: [:s || in len | 
   in := ReadStream on: s1.
   len := 0.
   [in atEnd] whileFalse: [ 
  s nextPut: in next.
  len := len + 1.
  (in atEnd not and: [ (len \\ 3) = 0]) ifTrue: [ s space ] ] ]

> On Apr 27, 2020, at 10:07 AM, Roelof Wobben via Pharo-users 
>  wrote:
> 
> 
> From: Roelof Wobben 
> Subject: Re: [Pharo-users] can I divide a string into part of exactly n length
> Date: April 27, 2020 at 10:07:41 AM PDT
> To: Richard Sargent , Any question about 
> pharo is welcome 
> 
> 
> Op 27-4-2020 om 19:05 schreef Richard Sargent:
>> On Mon, Apr 27, 2020 at 9:27 AM Roelof Wobben via Pharo-users 
>> mailto:pharo-users@lists.pharo.org>> wrote:
>> Hello,
>> 
>> I wonder if it is possible in Pharo to divide a string in lets say part 
>> of 3.
>> so this :  'abcdefgh'
>> 
>> would be  'abc def gh`
>> 
>> Do you really want a single string with spaces inserted or do you want a 
>> collection of substrings, each three characters (or less, for the last one)?
>> 
> 
> I need a single string with spaces inserted.
> So maybe I have formulate my question wrong. Very difficult if English is not 
> your mother language and you were bad at school in languages a very very long 
> ago.
> 
> Roelof
> 
> 
> 

--- End Message ---

Re: [Pharo-users] can I divide a string into part of exactly n length

[Roelof Wobben via Pharo-users]

--- Begin Message ---

  
  
Op 27-4-2020 om 19:05 schreef Richard
  Sargent:


  
  

  On Mon, Apr 27, 2020 at 9:27
AM Roelof Wobben via Pharo-users 
wrote:
  
  Hello,

I wonder if it is possible in Pharo to divide a string in
lets say part 
of 3.
so this :  'abcdefgh'

would be  'abc def gh`
  
  
  
  Do you really want a single string with spaces inserted
or do you want a collection of substrings, each three
characters (or less, for the last one)?
  

  


I need a single string with spaces inserted.
So maybe I have formulate my question wrong. Very difficult if
English is not your mother language and you were bad at school in
languages a very very long ago.

Roelof

  


--- End Message ---

Re: [Pharo-users] can I divide a string into part of exactly n length

[Richard Sargent]

On Mon, Apr 27, 2020 at 9:27 AM Roelof Wobben via Pharo-users <
pharo-users@lists.pharo.org> wrote:

> Hello,
>
> I wonder if it is possible in Pharo to divide a string in lets say part
> of 3.
> so this :  'abcdefgh'
>
> would be  'abc def gh`
>

Do you really want a single string with spaces inserted or do you want a
collection of substrings, each three characters (or less, for the last one)?



> Regards,
>
> Roelof
>
>
>

[Pharo-users] can I divide a string into part of exactly n length

[Roelof Wobben via Pharo-users]

--- Begin Message ---

Hello,

I wonder if it is possible in Pharo to divide a string in lets say part 
of 3.

so this :  'abcdefgh'

would be  'abc def gh`

Regards,

Roelof


--- End Message ---