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[DJSON-11] Commas still don't work properly in all cases for removed values via value-fn Created: 16/May/13  Updated: 17/May/13

Status: Open
Project: data.json
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Defect Priority: Major
Reporter: John Stoneham Assignee: Unassigned
Resolution: Unresolved Votes: 0
Labels: None

Attachments: Text File djson-11-fix-comma-printing-patch-v1.txt    
Patch: Code and Test

 Description   

DSON-7 fixes the problem with printing JSON with extra commas, but only as long as the last item is actually printable (the test doesn't appear to demonstrate this, but the keys are iterated in hash order, not insertion order). If the last item's no good, we still have a problem.

The best way to handle this without trying to precalculate value-fn for the next value (in case it's not needed) is to insert the comma BEFORE we print the current value, but only if it's not the first thing to be printed.



 Comments   
Comment by Andy Fingerhut [ 17/May/13 8:33 AM ]

Doh! Patch djson-11-fix-comma-printing-patch-v1.txt dated May 17 2013 should really fix things, including changing the test to exhibit the problem (before this fix).





[DJSON-9] Always escape U+2028 and U+2029 to be nice to broken JSON parsers Created: 28/Apr/13  Updated: 28/Apr/13

Status: Open
Project: data.json
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Enhancement Priority: Minor
Reporter: Tim McCormack Assignee: Unassigned
Resolution: Unresolved Votes: 0
Labels: None

Attachments: Text File 0001-Escape-JS-forbidden-unicode-chars-to-be-nice-to-brok.patch    

 Description   

U+2028 and U+2029 should be treated like \n and, viz, escaped even when *escape-unicode* is false.

A number of JSON parsers (such as ExtJS's) think they can eval JSON in a JS runtime to decode it. This is not true, since JS does not allow U+2028 and U+2029 unescaped in strings:

http://timelessrepo.com/json-isnt-a-javascript-subset

While this is broken behavior, it is also quite common, so escaping these characters uniformly may ease some developer pain and surprise.



 Comments   
Comment by Tim McCormack [ 28/Apr/13 9:46 PM ]

Attached patch.





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