blob: 08446d3a837c042b148ab1e90a48bd929830eb8a (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
require 'yaml'
require 'strscan'
module ActiveSupport
module JSON
class ParseError < StandardError
end
class << self
# Converts a JSON string into a Ruby object.
def decode(json)
YAML.load(convert_json_to_yaml(json))
rescue ArgumentError => e
raise ParseError, "Invalid JSON string"
end
protected
# Ensure that ":" and "," are always followed by a space
def convert_json_to_yaml(json) #:nodoc:
scanner, quoting, marks = StringScanner.new(json), false, []
while scanner.scan_until(/(\\['"]|['":,\\]|\\.)/)
case char = scanner[1]
when '"', "'"
if !quoting
quoting = char
elsif quoting == char
quoting = false
end
when ":",","
marks << scanner.pos - 1 unless quoting
end
end
if marks.empty?
json
else
ranges = ([0] + marks.map(&:succ)).zip(marks + [json.length])
ranges.map { |(left, right)| json[left..right] }.join(" ")
end
end
end
end
end
|
