May 3, 2000
8:51 p.m.
Tom> Is it possible to add a logical length field too? I presume it is Tom> too expensive to recalculate the logical (character) length of a Tom> string each time len(s) is called? Doing this is only slightly more Tom> time consuming than a normal strlen: ... Note that currently the len() method doesn't call strlen() at all. It just returns the ob_size field. Presumably, with Just's proposal len() would simply return ob_size/width. If you used a variable width encoding, Just's plan wouldn't work. (I don't know anything about string encodings - is UTF-8 variable width?)