Hi there. Today I wanted to translate to Pharo Smalltalk the code in a Bash one-liner to sort a column in a CSV file:
cat myfile.txt | cut -d \; -f 2 | sort
For replicating this one, you will need the NeoCSV package (doc), and just use the power of SortedCollection:
SortedCollection streamContents: [ : out | 'myfile.txt' asFileReference readStreamDo: [ : in | (NeoCSVReader on: (ZnBufferedReadStream on: in)) in: [ : reader | reader separator: $;; do: [ : each | out nextPut: each second ] ] ] ].
which you can apply to a dummy myfile.txt CSV:
a;Rachmaninoff;1 b;Horowitz;2 c;Hofmann;3 d;Scriabin;4
Hope you liked it.
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