The `not' and `intersection' forms, and `or' inside these forms,
now accept characters and single-character strings as arguments.
Previously, they had to be wrapped in `any' forms.
This does not add expressive power but is a convenience and is easily
understood.
* doc/lispref/searching.texi (Rx Constructs): Amend the documentation.
* etc/NEWS: Announce the change.
* lisp/emacs-lisp/rx.el (rx--charset-p, rx--translate-not)
(rx--charset-intervals, rx): Accept characters and 1-char strings in
more places.
* test/lisp/emacs-lisp/rx-tests.el (rx-not, rx-charset-or)
(rx-def-in-charset-or, rx-intersection): Test the change.
These character set operations, together with `not' for set
complement, improve the compositionality of rx, and reduce duplication
in complicated cases. Named character classes are not permitted in
set operations.
* lisp/emacs-lisp/rx.el (rx--translate-any): Split into multiple
functions.
(rx--foldl, rx--parse-any, rx--generate-alt, rx--intervals-to-alt)
(rx--complement-intervals, rx--intersect-intervals)
(rx--union-intervals, rx--charset-intervals, rx--charset-union)
(rx--charset-all, rx--charset-intersection, rx--translate-union)
(rx--translate-intersection): New.
(rx--translate-not, rx--translate-form, rx--builtin-forms, rx):
Add `union' and `intersection'.
* test/lisp/emacs-lisp/rx-tests.el (rx-union ,rx-def-in-union)
(rx-intersection, rx-def-in-intersection): New tests.
* doc/lispref/searching.texi (Rx Constructs):
* etc/NEWS:
Document `union' and `intersection'.
Although 'push' returns the modified list, it isn't actually
documented to do so, so don't rely on it.
* lisp/emacs-lisp/rx.el (rx--translate-any): Add progn.
For example, (any digit digit) should produce "[[:digit:]]",
not "[[:digit:][:digit:]]".
* lisp/emacs-lisp/rx.el (rx--translate-any): Deduplicate character classes.
* test/lisp/emacs-lisp/rx-tests.el (rx-any): Add test case.
* lisp/emacs-lisp/rx.el (rx--translate-symbol):
* test/lisp/emacs-lisp/rx-tests.el (rx-any, rx-atoms):
Use [^z-a] instead of ".\\|\n" for anychar.
The new expression is faster (about 2×) and does not allocate regexp
stack space. For example, (0+ anychar) now matches strings of any
size (bug#37659).
* lisp/emacs-lisp/rx.el (rx--translate-symbol, rx--builtin-symbols, rx):
* test/lisp/emacs-lisp/rx-tests.el (rx-atoms):
* doc/lispref/searching.texi (Rx Constructs):
* etc/NEWS:
Add `anychar', an alias for `anything'. Since `anychar' is more
descriptive (and slightly shorter), treat it as the preferred name.
It was an internal symbol in the old `rx' implementation, used in old
versions of the `flycheck' package.
* lisp/emacs-lisp/rx.el (rx-submatch-n): Alias of `rx-to-string'.
* test/lisp/emacs-lisp/rx-tests.el (rx-compat): Test it.
* lisp/emacs-lisp/rx.el:
* test/lisp/emacs-lisp/rx-tests.el:
* doc/lispref/searching.texi (Rx Constructs):
Rewrite rx for correctness, clarity, and performance. The new
implementation retains full compatibility and has more comprehensive
tests.
* lisp/emacs-lisp/re-builder.el (reb-rx-font-lock-keywords):
Adapt to changes in internal variables in rx.el.
* lisp/emacs-lisp/rx.el (rx-regexp, rx-literal): Check the cadr of the
form for stringness, not the form itself.
* test/lisp/emacs-lisp/rx-tests.el (rx-to-string-lisp-forms): New test.
* lisp/emacs-lisp/rx.el (rx-regexp): Allow non-string forms.
(rx-constituents): Add literal constituent, which is like a plain
STRING form, but allows arbitrary lisp expressions.
(rx-literal): New function.
(rx-compile-to-lisp): New variable.
(rx--subforms): New helper function for handling subforms, including
non-constant case.
(rx-group-if, rx-and, rx-or, rx-=, rx->=, rx-repeat, rx-submatch)
(rx-submatch-n, rx-kleene, rx-atomic-p): Use it to handle non-constant
subforms.
(rx): Document new form, wrap non-constant forms with concat call.
* test/lisp/emacs-lisp/rx-tests.el (rx-tests--match): New macro.
(rx-nonstring-expr, rx-nonstring-expr-non-greedy): New tests.
* etc/NEWS: Announce changes.
Restore lines saying "Maintainer: emacs-devel@gnu.org" when there is
no special maintainer for a file. Although this wasn't documented
it was common practice and removing the lines didn't have consensus.
Make the rx `or' and `seq' forms accept zero arguments to produce a
never-matching regexp and an empty string, respectively.
* lisp/emacs-lisp/rx.el: Require cl-extra.
(rx-constituents, rx-or): Permit zero args.
(rx): Amend doc string for `or' and `seq'.
* test/lisp/emacs-lisp/rx-tests.el (rx-or, rx-seq): Test the change.
* etc/NEWS (Changes in Specialized Modes and Packages): Mention the change.
Make the rx `or' and `seq' forms accept zero arguments to produce a
never-matching regexp and an empty string, respectively.
* lisp/emacs-lisp/rx.el (rx-constituents, rx-or): Permit zero args.
(rx): Amend doc string for `or' and `seq'.
* test/lisp/emacs-lisp/rx-tests.el (rx-or, rx-seq): Test the change.
* etc/NEWS (Changes in Specialized Modes and Packages): Mention the change.
(any "a-Z0-9") generated "[0-9]", and (any (?9 . ?0)) generated "[9-0]".
Reversed ranges are either mistakes or abuse. Neither should be allowed.
etc/NEWS: Explain the change.
lisp/emacs-lisp/rx.el (rx): Document.
(rx-check-any-string, rx-check-any): Add error checks for reversed ranges.
test/lisp/emacs-lisp/rx-tests.el (rx-char-any-range-bad): New test.
The rx `or' form may reorder its arguments in an unpredictable way,
contrary to user expectation, since it sometimes uses `regexp-opt'.
Add a NOREORDER option to `regexp-opt' for preventing it from
producing a reordered regexp (Bug#34641).
* doc/lispref/searching.texi (Regular Expression Functions):
* etc/NEWS (Lisp Changes in Emacs 27.1):
Describe the new regexp-opt NOREORDER argument.
* lisp/emacs-lisp/regexp-opt.el (regexp-opt): Add NOREORDER.
Make no attempt at regexp improvement if the set of strings contains
a prefix of another string.
(regexp-opt--contains-prefix): New.
* lisp/emacs-lisp/rx.el (rx-or): Call regexp-opt with NOREORDER.
* test/lisp/emacs-lisp/rx-tests.el: Test rx `or' form match order.
`rx' incorrectly considers character ranges between ASCII and raw bytes to
cover all codes in-between, which includes all non-ASCII Unicode chars.
This causes (any "\000-\377" ?Å) to be simplified to (any "\000-\377"),
which is not at all the same thing: [\000-\377] really means
[\000-\177\200-\377] (Bug#34492).
* lisp/emacs-lisp/rx.el (rx-any-condense-range): Split ranges going
from ASCII to raw bytes.
* test/lisp/emacs-lisp/rx-tests.el (rx-char-any-raw-byte): Add test case.
* etc/NEWS: Mention the overall change (Bug#33205).
* doc/lispref/searching.texi (Character Classes):
* lisp/emacs-lisp/rx.el (rx):
Document that [:cntrl:] excludes DEL.
* test/src/regex-emacs-tests.el (regex-tests-PTESTS-whitelist):
Swap misplaced comments and fix wrong code for DEL.
* lisp/emacs-lisp/rx.el (rx-kleene):
Treat \? and \?? like ? and ?? (Bug#34100).
* test/lisp/emacs-lisp/rx-tests.el: Add tests for all repetition operators.
* lisp/emacs-lisp/rx.el (rx-check-any-string): Rewrite to handle raw bytes
in unibyte strings and accept LF as range endpoints (Bug#33205).
* test/lisp/emacs-lisp/rx-tests.el: Add tests for the above.
3e72298 Improve documentation of 'pcase-defmacro rx'
ba9b9bb Fix TTY colors breakage by 'clear-face-cache'
f56ad42 * admin/MAINTAINERS: Add files maintained by me (Michael Albi...
7a258fa Adapt shadowfile.el for Tramp (Bug#4526, Bug#4846)
cb50077 Fix auth-source-delete (Bug#26184)
a4767a6 Avoid assertion violations in gnutls.c
90110f8 Don't use a literal "C-u" in ispell.el help message text
f4e7f6d Improve documentation of 'seqp'
ed13639 Clarify usage and dependencies between several Flyspell features
Conflicts:
etc/NEWS
test/lisp/auth-source-tests.el
9d6a3ac73a Mention pcase as a fifth conditional form
567cb9046d Overhaul pcase documentation
4d7e54acff Use EXPVAL in docstrings of patterns defined using pcase-d...
7e8227ed68 Introduce EXPVAL for pcase, pcase-defmacro docstrings
e6de5b3d51 Ensure pcase doc shows `QPAT first among extensions
