End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
String#scrub
str.scrub → new_str
str.scrub(repl) → new_str
str.scrub{|bytes|} → new_str
string.c
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static VALUE
str_scrub(int argc, VALUE *argv, VALUE str)
{
VALUE repl = argc ? (rb_check_arity(argc, 0, 1), argv[0]) : Qnil;
VALUE new = rb_str_scrub(str, repl);
return NIL_P(new) ? str_duplicate(rb_cString, str): new;
}
If the string is invalid byte sequence then replace invalid bytes with given replacement character, else returns self. If block is given, replace invalid bytes with returned value of the block.
Example
"abc\u3042\x81".scrub #=> "abc\u3042\uFFFD" "abc\u3042\x81".scrub("*") #=> "abc\u3042*" "abc\u3042\xE3\x80".scrub{|bytes| '<'+bytes.unpack('H*')[0]+'>' } #=> "abc\u3042<e380>"
Ruby version changes
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3.0
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The following methods now return or yield
Stringinstances instead of subclass instances when called on subclass instances: [Bug #10845]
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