method

swapcase

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swapcase() public

Returns a copy of str with uppercase alphabetic characters converted to lowercase and lowercase characters converted to uppercase.

"Hello".swapcase          #=> "hELLO"
"cYbEr_PuNk11".swapcase   #=> "CyBeR_pUnK11"

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/*
 *  call-seq:
 *     str.swapcase   => new_str
 *  
 *  Returns a copy of <i>str</i> with uppercase alphabetic characters converted
 *  to lowercase and lowercase characters converted to uppercase.
 *     
 *     "Hello".swapcase          #=> "hELLO"
 *     "cYbEr_PuNk11".swapcase   #=> "CyBeR_pUnK11"
 */

static VALUE
rb_str_swapcase(str)
    VALUE str;
{
    str = rb_str_dup(str);
    rb_str_swapcase_bang(str);
    return str;
}

swapcase

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