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[DJSON-16] Add positional tracking to JSON reader Created: 18/May/14  Updated: 06/Jun/14  Resolved: 06/Jun/14

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

Type: Enhancement Priority: Minor
Reporter: Tim Clemons Assignee: Stuart Sierra
Resolution: Declined Votes: 0
Labels: enhancement, errormsgs, patch

Attachments: Text File 0001-Explicity-define-whitespace-characters.patch     Text File 0002-Add-position-tracking-to-reader.patch     Text File 0003-Add-line-and-column-information-to-read-exceptions.patch     Text File 0004-Add-stack-of-structure-starting-points-to-reader.patch     Text File 0005-Add-track-pos-argument-to-read.patch     Text File 0006-Replace-instances-of-printf-with-format.patch    
Patch: Code and Test


The attached patches add an optional argument to clojure.data.json/read, :track-pos?, that causes the line and column number information for each array and object member to be stored as metadata on the result. Line and column numbers are also added to the various exception messages. Useful for doing validation on a JSON file so that the user can mor easily determine where a problem exists.

Comment by Tim Clemons [ 27/May/14 4:37 PM ]

FYI, it appears my Contributor Agreement has been received and processed: http://clojure.org/contributing

Comment by Stuart Sierra [ 06/Jun/14 3:24 PM ]

I'm not opposed to this feature in principle, but I do not want to take the performance hit of this patch: more than 5X slower in my tests, regardless of whether or not you use the feature.

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