How to get brackets without apostrophes from the writeStream?

Question

I tried to get my brakets back from the wirteStream. Sadly the writeStream set two punctuation marks (apostrophes) before and after the brackets.

Could someone help me? I found the mistake for this in the class String in printOn and mainly in storeOn.

Have you an idea to solve it? I thought on RegEx... but maybe someone has another methode or solution.

| stream |
'()' printOn: (stream := '' writeStream).
stream contents = '()'.

Regards, bartak.

hmm, the problem comes up, when I try 'ANYTHING' with apothropes — bartak, Oct 21 '14 at 18:58

score 3 · Accepted Answer · answered Oct 21 '14 at 20:33

3

This is because String's #printOn: explicitly calls #storeOn:

printOn: aStream 
    "Print inside string quotes, doubling inbedded quotes."

    self storeOn: aStream

You could do it the other way around:

(stream := '' writeStream) nextPutAll: '()'.

answered Oct 21 '14 at 20:33

Tobias

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Thank you, Tobias. I want to show the trace of methods for other users here, so I listed printOn in my explanation. Next time I will show only the important method. ;-) – bartak Oct 21 '14 at 21:20

Max Leske · Answer 2 · 2014-10-22T05:19:02.027

2

That's because String>>printOn: will print "a string as a string", i.e. it will be quoted again. Solution: don't use #printOn: but rather Stream>>nextPutAll: or Stream>>print:.

Clarification:

#print is supposed to be sent to the stream, not to ByteString:

'' writeStream print: '()'.

edited Oct 22 '14 at 05:19

answered Oct 21 '14 at 20:31

Max Leske

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Thank you. nextPutAll works. If I use print, it raises ByteString>>print . – bartak Oct 21 '14 at 21:14

How to get brackets without apostrophes from the writeStream?

2 Answers2