Re: Lowercase equivalent to uppercase, or vice versa


"Rick Smith" <ricksmith@xxxxxxx> wrote in message news:1225lhe6r38lj5f@xxxxxxxxxxxxxxxxxxxxx
The COPY statement, for 2002, 7.1.2.3 General rules,
10, c), 3, states, in part, "... each lowercase letter is
equivalent to its corresponding uppercase letter, as
specified for the COBOL character repertoire in 8.1.2,
COBOL character repertoire.", and, the REPLACE
statement, 7.1.3.3 General rules, 8, c), 3, states, in part,
"... each lowercase letter is equivalent to its corresponding
uppercase letter, as specified for the COBOL character
repertoire in 8.1.2, COBOL character repertoire.".

However, COBOL character repertoire, 8.1.2.1 General
rules, 3, states, in part, "Equivalence of uppercase and
lowercase basic letters is achieved by folding from
uppercase to lowercase in accordance with the case
mapping described in Annex D."

Thus, it seems to me, that the wording in both the COPY
and REPLACE statements should be reversed to say
"each uppercase letter is equivalent to its corresponding
lowercase letter, ...", since folding is from uppercase to
lowercase, then equivalence should be from uppercase
to lowercase.

The same references apply to WD 1.5, except Annex C
instead of Annex D.

Not sure if "equivalence" has some special meaning in COBOL, but in math, equivalence is a symmetric relationship. So if A is equivalent to B, then it is always true that B is equivalent to A.

- Oliver

.

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