ossp-pkg/var/TODO
1.19
OSSP var
o problem:
${foo:s/^(.+)$/<\1>/}
-> fails with malformatted search & replace error because
it tries to parse the $ as a variable.
${foo:s/^(.+)\$/<\1>/}
-> does not substitute because it leaves the \$ in the regex
and this no longer matches the end (instead it matches a dollar)
o "problem"!?:
${unknown:-foo} fails on force_expand and results
in no expansion (kept as is) if not forced_expand.
It only does the expected if the callback returns
empty strings for undefined variables. This is certainly
intended this way, but has to be documented better?
o use internal context to carry information
o document exception handling
o additional feature: functions via callback.
${foo:F<bar>:F<quux>} calls callback for bar with result of foo
expansion and then callback for quux with the result returned from
bar.