this can be used instead of delete-duplicates when the list must also
be sorted.
the main reason for this function will be for the upcoming aging.scm
report which will use it heavily to slice APAR splits into owner list.
Add tests for libgnucash/scm/utilities.scm functions
- tests for list<->vec
- tests for gnc:substring-replace
- tests for gnc:substring-replace-from-to
The latter confirms that the comment before the function definition
is *incorrect* - it describes that substring-replace-from-to will
start from the 2nd substring for the first substitution, and
performs 2 substitutions. However the comment illustrates only 1
substitution. The test suite performs the test according to code
behaviour, rather than the comment. This issue is moot in practice
because the end-after is always called with negative in the code
base.
original comment:
;; gnc:substring-replace-from-to
;; same as gnc:substring-replace extended by:
;; start: from which occurrence onwards the replacement shall start
;; end-after: max. number times the replacement should executed
;;
;; Example: (gnc:substring-replace-from-to "foobarfoobarfoobar" "bar" "xyz" 2 2)
;; returns "foobarfooxyzfoobar".
