diff options
Diffstat (limited to 'ext/json/lib/json/pure/parser.rb')
| -rw-r--r-- | ext/json/lib/json/pure/parser.rb | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/ext/json/lib/json/pure/parser.rb b/ext/json/lib/json/pure/parser.rb index 9b30f15c07..a0ab3075fe 100644 --- a/ext/json/lib/json/pure/parser.rb +++ b/ext/json/lib/json/pure/parser.rb @@ -126,20 +126,30 @@ module JSON if u = UNESCAPE_MAP[$&[1]] u else # \uXXXX - bytes = '' - i = 0 - while c[6 * i] == ?\\ && c[6 * i + 1] == ?u - bytes << c[6 * i + 2, 2].to_i(16) << c[6 * i + 4, 2].to_i(16) - i += 1 + res = [] + stack = nil + [c.delete!('\\\\u')].pack("H*").unpack("n*").each do |c| + case c + when 0xD800..0xDBFF + raise JSON::ParserError, "partial character in source" if stack + stack = c + when 0xDC00..0xDFFF + raise JSON::ParserError, + "partial character in source" unless (0xD800..0xDBFF).include?(stack) + res << (stack << 10) - 0x35fdc00 + c + stack = nil + else + raise JSON::ParserError, "partial character in source" if stack + res << c + end end - JSON::UTF16toUTF8.iconv(bytes) + raise JSON::ParserError, "partial character in source" if stack + res.pack("U*") end end else UNPARSED end - rescue Iconv::Failure => e - raise GeneratorError, "Caught #{e.class}: #{e}" end def parse_value |