The ASCII characters at the beginning of the ASCII table (RS, GS, Bell, etc) typically display as a box. What you are describing are zero width Unicode characters. I think there are four. You could explicitly look for them.
Kee Nethery > On May 10, 2021, at 7:09 AM, Paul Dupuis via use-livecode > <use-livecode@lists.runrev.com> wrote: > > There are characters that consist of more than one codepoint - composite > versions of characters for accents. See > https://unicode-table.com/en/blocks/combining-diacritical-marks/ > > > I think the best way is to scan the codepoints looking for codePointToNum > values that are 0-31 (exclude tab and cr/lfs if you like) and 127 (DEL). > There may be some others in the 128-255 range that are not printable. I > forget off the top of my head. > > > >> On 5/10/2021 5:49 AM, David V Glasgow via use-livecode wrote: >> Hi folks, hope everyone is well. >> >> Would I be right in thinking if codepoint count > the number of chars in a >> text string, then it probably contains invisible characters? >> >> Or would I need to search through Hex to check? >> >> Or something much easier and cleverer that I hadn’t even considered. >> Because that’s what this list and working with Livecode is like. >> >> Cheers >> >> David Glasgow >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
