Class: Spider::QueryFuncs::Expression

Inherits:

Object

• Object
• Spider::QueryFuncs::Expression

show all

Defined in:

lib/spiderfw/model/query_funcs.rb

Instance Method Summary (collapse)

• - (Object) []=(el, replacement)
• - (Object) each_element
• - (Expression) initialize(string) constructor

  A new instance of Expression.

• - (Object) to_s

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# File 'lib/spiderfw/model/query_funcs.rb', line 25

def initialize(string)
    @string = string
    @replacements = {}
end

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# File 'lib/spiderfw/model/query_funcs.rb', line 34

def []=(el, replacement)
    @replacements[el] = replacement
end

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# File 'lib/spiderfw/model/query_funcs.rb', line 30

def each_element
    @string.scan(/:\w[\w\d\.]+/).each{ |el| yield el[1..-1].to_sym }
end

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# File 'lib/spiderfw/model/query_funcs.rb', line 38

def to_s
    str = @string
    @replacements.each do |el, rep|
        str = str.gsub(":#{el}", rep)
    end
    return str
end