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authorJoshua Peek <josh@joshpeek.com>2011-04-19 09:42:11 -0500
committerJoshua Peek <josh@joshpeek.com>2011-04-19 09:42:11 -0500
commit011afb70e51c063de7685196bcace55ddf0dc67b (patch)
tree18e802e29d90edc0efe0e8178e0e6b8f7df34631 /activesupport/lib/active_support/json/backends/yaml.rb
parent069e9b004f91c4ace1373ab5203bb00ab41bd1f9 (diff)
parentb24621809ebd4c69796b5ca6b41e7720bc52228a (diff)
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Merge branch 'multi_json' of https://github.com/joshk/rails into joshk-multi_json
Diffstat (limited to 'activesupport/lib/active_support/json/backends/yaml.rb')
-rw-r--r--activesupport/lib/active_support/json/backends/yaml.rb113
1 files changed, 0 insertions, 113 deletions
diff --git a/activesupport/lib/active_support/json/backends/yaml.rb b/activesupport/lib/active_support/json/backends/yaml.rb
deleted file mode 100644
index e25e29d36b..0000000000
--- a/activesupport/lib/active_support/json/backends/yaml.rb
+++ /dev/null
@@ -1,113 +0,0 @@
-require 'active_support/core_ext/string/starts_ends_with'
-
-module ActiveSupport
- module JSON
- module Backends
- module Yaml
- ParseError = ::StandardError
- extend self
-
- EXCEPTIONS = [::ArgumentError] # :nodoc:
- begin
- require 'psych'
- EXCEPTIONS << Psych::SyntaxError
- rescue LoadError
- end
-
- # Parses a JSON string or IO and converts it into an object
- def decode(json)
- if json.respond_to?(:read)
- json = json.read
- end
- YAML.load(convert_json_to_yaml(json))
- rescue *EXCEPTIONS => e
- raise ParseError, "Invalid JSON string: '%s'" % json
- end
-
- protected
- # Ensure that ":" and "," are always followed by a space
- def convert_json_to_yaml(json) #:nodoc:
- require 'strscan' unless defined? ::StringScanner
- scanner, quoting, marks, pos, times = ::StringScanner.new(json), false, [], nil, []
- while scanner.scan_until(/(\\['"]|['":,\\]|\\.|[\]])/)
- case char = scanner[1]
- when '"', "'"
- if !quoting
- quoting = char
- pos = scanner.pos
- elsif quoting == char
- if valid_date?(json[pos..scanner.pos-2])
- # found a date, track the exact positions of the quotes so we can
- # overwrite them with spaces later.
- times << pos
- end
- quoting = false
- end
- when ":",",", "]"
- marks << scanner.pos - 1 unless quoting
- when "\\"
- scanner.skip(/\\/)
- end
- end
-
- if marks.empty?
- json.gsub(/\\([\\\/]|u[[:xdigit:]]{4})/) do
- ustr = $1
- if ustr.start_with?('u')
- char = [ustr[1..-1].to_i(16)].pack("U")
- # "\n" needs extra escaping due to yaml formatting
- char == "\n" ? "\\n" : char
- elsif ustr == '\\'
- '\\\\'
- else
- ustr
- end
- end
- else
- left_pos = [-1].push(*marks)
- right_pos = marks << scanner.pos + scanner.rest_size
- output = []
- left_pos.each_with_index do |left, i|
- scanner.pos = left.succ
- chunk = scanner.peek(right_pos[i] - scanner.pos + 1)
- if ActiveSupport.parse_json_times
- # overwrite the quotes found around the dates with spaces
- while times.size > 0 && times[0] <= right_pos[i]
- chunk.insert(times.shift - scanner.pos - 1, '! ')
- end
- end
- chunk.gsub!(/\\([\\\/]|u[[:xdigit:]]{4})/) do
- ustr = $1
- if ustr.start_with?('u')
- char = [ustr[1..-1].to_i(16)].pack("U")
- # "\n" needs extra escaping due to yaml formatting
- char == "\n" ? "\\n" : char
- elsif ustr == '\\'
- '\\\\'
- else
- ustr
- end
- end
- output << chunk
- end
- output = output * " "
-
- output.gsub!(/\\\//, '/')
- output
- end
- end
-
- private
- def valid_date?(date_string)
- begin
- date_string =~ DATE_REGEX && DateTime.parse(date_string)
- rescue ArgumentError
- false
- end
- end
-
- end
- end
- end
-end
-