Hi, this is an alternative script, i've added a couple of extra
examples you might find useful. Evaluate them in a workspace.
delimiter := $@.
string := 'key1@value1@key2@value2'.
substrings := string subStrings: {delimiter}.
dictionary := Dictionary new.
substrings groupsOf: 2 atATimeDo:[:each|
dictionary at: each second put: each first ].
str := '' writeStream.
dictionary storeOn: str.
str contents.
str := '' writeStream.
dictionary keysAndValuesDo:[:key :value|
str
nextPutAll: value ;
nextPut: delimiter ;
nextPutAll: key ].
str contents
Fernando
On Tue, Nov 15, 2011 at 4:15 AM, mail list <[email protected]> wrote:
> Nicolas,
> Thanks. Verbose is fine. I will give your suggestion a try.
>
> I also commented on fernando's email below.
>
> S.
> On Nov 15, 2011, at 3:26 AM, Nicolas Cellier wrote:
>
>> It might seem a bit verbose, but your example translates as
>>
>> aDictionary associations inject: string into: [:subst :assoc | assoc
>> key asRegex copy: subst replacingMatchesWith: assoc value].
>>
>> Nicolas
>>
>> 2011/11/14 Fernando Olivero <[email protected]>:
>>> I dont fully understand your question, also i have no idea what #gsub does.
> gsub does a global search and replace in the string to replace any elements
> with the replacement text.
> mystring:='hello there hello'
>
> eg myString.gsub('hello','goodbye') ===> 'goodbye there goodbye'
>
> S.
>>>
>>> do you start from a dictionary ? or a string ? it seems that you want
>>> to create a dictionary from a particular string.
>>>
>>> Could you provide an example of such string, i could help you in
>>> finding the correct messages of String/Stream to send.
>>>
>>> The #gsub message, seems pertinent to all Strings? or is a special
>>> behavior for your special case?
>>>
>>>
>>> Fernando
>>>
>>> On Mon, Nov 14, 2011 at 10:17 AM, Sven Van Caekenberghe <[email protected]>
>>> wrote:
>>>>
>>>> On 14 Nov 2011, at 08:25, mail list wrote:
>>>>
>>>>> I have a dictionary of keys and values.
>>>>>
>>>>> I have a text string in which the keys are marked with before and ending
>>>>> symbols.
>>>>>
>>>>> In ruby to replace the key with the value in the text string is
>>>>> reasonably simple. (eg Dictionary.each { key,value |
>>>>> string.gsub!(key,value) } - or similar to this.
>>>>>
>>>>> While I don't mind rolling my version of this in Smalltalk, just
>>>>> exploring the regex code and the streams code it is not obvious where is
>>>>> the easiest place to start.
>>>>>
>>>>> If someone would put their comments on where to start I will build the
>>>>> functionality and put it up on squeaksource since I think it is common
>>>>> requirement.
>>>>>
>>>>> S.
>>>>
>>>> There is String>>#format: but there are probably other options as well.
>>>>
>>>> Sven
>>>>
>>>
>>>
>>
>
>
