hans@ditmela.oz (Hans Eriksson) (10/09/89)
The last paragraph on page 11-10 in the 1988 stable aggreements says: ================ ALPHABETS T.61 Strings used as attribute values shall only encode graphic characters and space. They must not contain formatting characters (such as subscript) or other control characters. ================ Does it mean that only the "elementary graphic characters" (T.61 2.13) are allowed? But what about the "composite graphic characters"? They are graphic characters, but we need the shift-characters to change the character set. The end result is a "graphic character" still. Another somewhat related question is: Is a T.61 with a number of "unnecessary" shift controls equal to the same string without the unnecessary ones? E.g. would the following strings be equal: F r e d SHIFT-LOCK-1 SHIFT-LOCK-1 F l i n t a F r e d SHIFT-LOCK-1 F l i n t a /hans -- Hans Eriksson (hans@ditmela.oz.au) CSIRO/DIT, 55 Barry Street, Carlton, Victoria 3053, Australia (we are GMT+10) Tel: +61 3 347-8644 Fax: +61 3 347-8987 Home: +61 3 534-5188 On a years leave from Swedish Institute of Computer Science (hans@sics.se)