Jim Porter dabe0b7d40 Add support for negative indices and index ranges in Eshell ... * lisp/eshell/esh-util.el (eshell-integer-regexp): New defvar. * lisp/eshell/esh-var.el (eshell-parse-indices): Expand docstring. (eshell-parse-index): New function. (eshell-apply-indices): Use 'eshell-parse-index' to determine whether to treat the first index as a regexp. Simplify the implementation a bit. (eshell-index-range): New pcase macro... (eshell-index-value): ... use it, and restructure the implementation. * test/lisp/eshell/esh-var-tests.el (esh-var-test/interp-var-indices): New function... (esh-var-test/interp-var-indices/list) (esh-var-test/interp-var-indices/vector) (esh-var-test/interp-var-indices/ring) (esh-var-test/interp-var-indices/split): ... use it. (esh-var-test/interp-var-string-split-indices) (esh-var-test/interp-var-regexp-split-indices) (esh-var-test/interp-var-assoc): Expand tests to cover things that look like numbers or ranges, but aren't. * doc/misc/eshell.texi (Variables): Describe how to get all arguments of the last command. (Dollars Expansion): Explain negative indices and index ranges. (Bugs and ideas): Remove now-implemented ideas. * etc/NEWS: Announce this change.		2023-01-27 18:03:10 -08:00
..
emacs	Merge from origin/emacs-29	2023-01-27 11:30:38 +01:00
lispintro	; Add 2023 to copyright years.	2023-01-01 05:31:12 -05:00
lispref	Add `yes-or-no-prompt' user option	2023-01-23 09:17:15 +01:00
man	; Add 2023 to copyright years.	2023-01-01 05:31:12 -05:00
misc	Add support for negative indices and index ranges in Eshell	2023-01-27 18:03:10 -08:00