Bug #8742: JSON.parse can not handle tab in string

• Status: Rejected
• Assignee: -
• Target version: -
• ruby -v: ruby 1.9.3p194 (2012-04-20) [x86_64-linux]
• Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN

[joejack (Joe Jack)]

The following JSON file:

{
"I am tab": " "
}

does not parse when running the script:

require 'json'
JSON.parse IO::read 'tab.json'

the error message is:

/usr/local/lib/ruby/1.9.1/json/common.rb:148:in parse': 743: unexpected token at '{ (JSON::ParserError) "I am tab": " " } ' from /usr/local/lib/ruby/1.9.1/json/common.rb:148:in parse'
from parse.rb:2:in `'

Taking out the quoted tab solves the problem.
If there is a quoted tab in a file, the error message shows the entire document!

I don't think literal tabs are allowed in strings, per the JSON spec.

[henrikhodne (Henrik Hodne)]

=begin
Confirm that tabs are not allowed in JSON strings according to the spec (((<RFC4627|URL:http://tools.ietf.org/html/rfc4627#page-4>))).

Only characters that can be included unquoted are (({0x20}))-(({0x21})), (({0x23}))-(({0x5B})) and (({0x5D}))-(({0x10FFFF})).

I do agree that the error message is a little confusing, though.
=end

[naruse (Yui NARUSE)]

• Status changed from Open to Rejected