42 lines
927 B
Ruby
42 lines
927 B
Ruby
module Mm2ep
|
|
module Depend
|
|
class Parser2
|
|
attr_reader :tokens
|
|
|
|
TOKEN = {
|
|
'L_PAR' => "(",
|
|
'NUMBER' => /[0-9]+(\.[0-9]+)?/,
|
|
'STRING' => /"[^"]*"/,
|
|
'EQ_OP' => "=",
|
|
'T_BOOL' => /[tT]rue/,
|
|
'F_BOOL' => /[fF]alse/,
|
|
'VAR' => /[a-z][a-zA-Z0-9_]+/,
|
|
'AND_OP' => "AND",
|
|
'OR_OP' => "OR",
|
|
'NOT_OP' => "NOT",
|
|
'SPACE' => /\s+/,
|
|
'R_PAR' => ")"
|
|
}.freeze
|
|
|
|
|
|
def initialize
|
|
@tokens = []
|
|
end
|
|
|
|
def parse s
|
|
s = s.split(' ')
|
|
s.each_with_index do |element, idx|
|
|
TOKEN.each do |token, regex|
|
|
next if element.sub!(regex, '').nil?
|
|
@tokens << token
|
|
break if element.nil?
|
|
end
|
|
@tokens <<'SPACE' unless idx == s.length-1
|
|
end
|
|
# puts @tokens
|
|
@tokens
|
|
end # def
|
|
|
|
end # class
|
|
end # module
|
|
end # module
|