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Contents
# TODO Is there any good way to avoid 'unless const_defined?'.
module Kernel
unless const_defined?("OPERATORS")
OPERATORS = %w{ +@ -@ + - ** * / % ~ <=> << >> < > === == =~ <= >= | & ^ []= [] }
OPERATORS_REGEXP = Regexp.new( '(' << OPERATORS.collect{ |k| Regexp.escape(k) }.join('|') << ')' )
OPERATORS_ESC_TABLE = {
"+@" => "op_plus_self",
"-@" => "op_minus_self",
"+" => "op_plus",
"-" => "op_minus",
"**" => "op_pow",
"*" => "op_mul",
"/" => "op_div",
"%" => "op_mod",
"~" => "op_tilde",
"<=>" => "op_cmp",
"<<" => "op_lshift",
">>" => "op_rshift",
"<" => "op_lt",
">" => "op_gt",
"===" => "op_case_eq",
"==" => "op_equal",
"=~" => "op_apply",
"<=" => "op_lt_eq",
">=" => "op_gt_eq",
"|" => "op_or",
"&" => "op_and",
"^" => "op_xor",
"[]=" => "op_store",
"[]" => "op_fetch"
}
end
def op_esc( str )
str.gsub(OPERATORS_REGEXP){ OPERATORS_ESC_TABLE[$1] }
end
end
Version data entries
10 entries across 10 versions & 1 rubygems