Method: MatchData#values_at
- Defined in:
- re.c
#values_at(*indexes) ⇒ Array
Returns match and captures at the given indexes
, which may include any mixture of:
-
Integers.
-
Ranges.
-
Names (strings and symbols).
Examples:
m = /(.)(.)(\d+)(\d)/.match("THX1138: The Movie")
# => #<MatchData "HX1138" 1:"H" 2:"X" 3:"113" 4:"8">
m.values_at(0, 2, -2) # => ["HX1138", "X", "113"]
m.values_at(1..2, -1) # => ["H", "X", "8"]
m = /(?<a>\d+) *(?<op>[+\-*\/]) *(?<b>\d+)/.match("1 + 2")
# => #<MatchData "1 + 2" a:"1" op:"+" b:"2">
m.values_at(0, 1..2, :a, :b, :op)
# => ["1 + 2", "1", "+", "1", "2", "+"]
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# File 're.c', line 2303 static VALUE match_values_at(int argc, VALUE *argv, VALUE match) { VALUE result; int i; match_check(match); result = rb_ary_new2(argc); for (i=0; i<argc; i++) { if (FIXNUM_P(argv[i])) { rb_ary_push(result, rb_reg_nth_match(FIX2INT(argv[i]), match)); } else { int num = namev_to_backref_number(RMATCH_REGS(match), RMATCH(match)->regexp, argv[i]); if (num >= 0) { rb_ary_push(result, rb_reg_nth_match(num, match)); } else { match_ary_aref(match, argv[i], result); } } } return result; } |