99 lines
3.2 KiB
Plaintext
99 lines
3.2 KiB
Plaintext
# MIT License
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# See https://github.com/divoxx/ruby-php-serialization/blob/master/LICENSE.txt
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class PhpSerialization::Unserializer
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rule
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data : null ';' { @object = val[0] }
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| bool ';' { @object = val[0] }
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| integer ';' { @object = val[0] }
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| double ';' { @object = val[0] }
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| string ';' { @object = val[0] }
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| assoc_array { @object = val[0] }
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| object { @object = val[0] }
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;
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null : 'N' { result = nil }
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;
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bool : 'b' ':' NUMBER { result = Integer(val[2]) > 0 }
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;
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integer : 'i' ':' NUMBER { result = Integer(val[2]) }
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;
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double : 'd' ':' NUMBER { result = Float(val[2]) }
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;
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string : 's' ':' NUMBER ':' STRING { result = val[4] }
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;
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object : 'O' ':' NUMBER ':' STRING ':' NUMBER ':' '{' attribute_list '}'
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{
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if eval("defined?(#{val[4]})")
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result = Object.const_get(val[4]).new
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val[9].each do |(attr_name, value)|
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# Protected and private attributes will have a \0..\0 prefix
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attr_name = attr_name.gsub(/\A\\0[^\\]+\\0/, '')
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result.instance_variable_set("@#{attr_name}", value)
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end
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else
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klass_name = val[4].gsub(/^Struct::/, '')
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attr_names, values = [], []
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val[9].each do |(attr_name, value)|
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# Protected and private attributes will have a \0..\0 prefix
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attr_names << attr_name.gsub(/\A\\0[^\\]+\\0/, '')
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values << value
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end
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result = Struct.new(klass_name, *attr_names).new(*values)
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result.instance_variable_set("@_php_class", klass_name)
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end
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}
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;
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attribute_list : attribute_list attribute { result = val[0] << val[1] }
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| { result = [] }
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;
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attribute : data data { result = val }
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;
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assoc_array : 'a' ':' NUMBER ':' '{' attribute_list '}'
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{
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# Checks if the keys are a sequence of integers
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idx = -1
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arr = val[5].all? { |(k,v)| k == (idx += 1) }
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if arr
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result = val[5].map { |(k,v)| v }
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else
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result = Hash[val[5]]
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end
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}
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;
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end
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---- header ----
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require 'php_serialization/tokenizer'
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---- inner ----
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def initialize(tokenizer_klass = Tokenizer)
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@tokenizer_klass = tokenizer_klass
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end
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def run(string)
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@tokenizer = @tokenizer_klass.new(string)
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yyparse(@tokenizer, :each)
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return @object
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ensure
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@tokenizer = nil
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end
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def next_token
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@tokenizer.next_token
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end
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