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Russian Progress User Group • Макроподстановка?!!!
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Макроподстановка?!!!

Добавлено: 15 сен 2016, 09:00
sega1999
Имеется ли в Progress такая штука как макроподстановка. Вот например в Clipper можно было так записать:
Function (kl)
local a

do case
case kl=1
a = "t1."
case kl=2
a = "t2."
case kl=3
a = "t3."
endcase
a=a+"pole1"
(&a) = 7 /* присвоение полю pole1 значения 7 */
Return

Т.е. у меня есть три таблицы с одинаковым полем и мне нужен динамический способ доступа к этому полю

Re: Макроподстановка?!!!

Добавлено: 15 сен 2016, 16:01
Arelav
Я такого не встречал. Напрашивается использование препроцессорных переменных, но не уверен что сработает.
Можно попробовать задать вопрос в Progress Community в форуме OpenEdge Development: https://community.progress.com/communit ... velopment/

Re: Макроподстановка?!!!

Добавлено: 15 сен 2016, 17:56
sega1999
Я тоже сначала думал о препроцессорных переменных, и тоже отмел.
В Clipper очень много используются макроподстановки.
Вот еще примерчик от туда:
a=2
b=5
c=3

f="a+b-c"
k="a+b+c"

&f /* результат - 4 */
&k /* результат - 10 */