53 lines
2.6 KiB
Ruby
53 lines
2.6 KiB
Ruby
module Parser
|
|
module Operators
|
|
include output
|
|
rule(:exponent) { str('**') >> space?}
|
|
rule(:multiply) { match['*/%'] >> space? }
|
|
rule(:plus) { match['+-'] >> space? }
|
|
rule(:shift) { str(">>") | str("<<") >> space?}
|
|
rule(:bit_and) { str('&') >> space?}
|
|
rule(:bit_or) { str('|') >> space?}
|
|
rule(:greater_equal) { str('>=') >> space?}
|
|
rule(:less_or_equal) { str('<=') >> space?}
|
|
rule(:larger) { str('>') >> space?}
|
|
rule(:smaller) { str('<') >> space?}
|
|
rule(:identity) { str('===') >> space?}
|
|
rule(:equal) { str('==') >> space?}
|
|
rule(:not_equal) { str('!=') >> space?}
|
|
rule(:boolean_and) { str('&&') | str("and") >> space?}
|
|
rule(:boolean_or) { str('||') | str("or") >> space?}
|
|
rule(:assign) { str('=') >> space?}
|
|
rule(:op_assign) { str('+=')|str('-=')|str('*=')|str('/=')|str('%=') >> space?}
|
|
rule(:eclipse) { str('..') |str("...") >> space?}
|
|
rule(:assign) { str('=') >> space?}
|
|
|
|
#infix doing the heavy lifting here,
|
|
# is defined as an expressions and array of [atoms,priority,binding] triples
|
|
rule(:operator_expression) do infix_expression(value_expression,
|
|
[exponent, 120, :left] ,
|
|
[multiply, 120, :left] ,
|
|
[plus, 110, :left],
|
|
[shift, 100, :left],
|
|
[bit_and, 90, :left],
|
|
[bit_or, 90, :right],
|
|
[greater_equal, 80, :left],
|
|
[less_or_equal, 80, :left],
|
|
[larger, 80, :left],
|
|
[smaller, 80, :left],
|
|
[identity, 70, :right],
|
|
[equal, 70, :right],
|
|
[not_equal, 70, :right],
|
|
[boolean_and, 60, :left],
|
|
[boolean_or, 50, :right],
|
|
[eclipse, 40, :right],
|
|
[keyword_rescue, 30, :right],
|
|
[assign, 20, :right],
|
|
[op_assign, 20, :right],
|
|
[keyword_until, 10, :right],
|
|
[keyword_while, 10, :right],
|
|
[keyword_unless, 10, :right],
|
|
[keyword_if, 10, :right])
|
|
end
|
|
end
|
|
end
|