Here is an example of dyadic ;: it parses CSV
mj =. 256 $ 0 NB. X - Other
mj =. 1 (a.i.a.)}mj NB. C - Char
mj =. 2 (a.i.',')}mj NB. D - Delim
mj =. 3 (a.i.'"')}mj NB. Q - Quote
mj =. 4 (a.i.'''')}mj NB. S - Single Quote
sj =. _2] \"1 }.".;._2 (0 : 0)
NB. X C D Q S
0 0 1 1 2 1 3 1 4 1 NB. 0 - Other
0 0 1 0 2 2 1 0 1 0 NB. 1 - Char
0 0 1 1 1 2 3 1 4 1 NB. 2 - Delim
0 0 3 0 3 0 5 0 3 0 NB. 3 - Quote
0 0 4 0 4 0 4 0 6 0 NB. 4 - SQuote
0 0 0 0 2 2 3 0 0 0 NB. 5 - Second Quote
0 0 0 0 2 2 0 0 4 0 NB. 6 - Second SQuote
)
parse_csv =. (0;sj;mj)&;:
On Fri, Oct 19, 2012 at 9:20 PM, Henry Rich <[email protected]> wrote:
> Somewhere there is a description of how to use dyad ;: to emulate monad ;:
> . You can modify that as required.
>
> Henry Rich
>
>
> On 10/19/2012 8:57 PM, bob therriault wrote:
>
>> What about using cut? (;.)
>>
>> k=.'blåbærgrød'
>> k
>> blåbærgrød
>> t=: (a:-.~<;._2)@,&' ' NB. removing a: to clean up multiple spaces
>> t k
>> +-------------+
>> |blåbærgrød|
>> +-------------+
>> k=.'blåbærgrød blåbærgrød'
>> t k
>> +-------------+-------------+
>> |blåbærgrød|blåbærgrød|
>> +-------------+-------------+
>> k=.'blåbærgrød blåbærgrød'
>> t k
>> +-------------+-------------+
>> |blåbærgrød|blåbærgrød|
>> +-------------+-------------+
>>
>> On 2012-10-19, at 4:05 PM, Bo Jacoby wrote:
>>
>> k=.'blåbærgrød'
>>>
>>
>> ------------------------------**------------------------------**
>> ----------
>> For information about J forums see
>> http://www.jsoftware.com/**forums.htm<http://www.jsoftware.com/forums.htm>
>>
>> ------------------------------**------------------------------**
> ----------
> For information about J forums see
> http://www.jsoftware.com/**forums.htm<http://www.jsoftware.com/forums.htm>
>
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