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instance method

Regexp#casefold?

rxp.casefold? → true or false

static VALUE
rb_reg_casefold_p(VALUE re)
{
    rb_reg_check(re);
    if (RREGEXP_PTR(re)->options & ONIG_OPTION_IGNORECASE) return Qtrue;
    return Qfalse;
}

Returns the value of the case-insensitive flag.

Example

/a/.casefold?           #=> false
/a/i.casefold?          #=> true
/(?i:a)/.casefold?      #=> false

See also #as_json #encoding #~ #eql? also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1

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