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Fix (rx-to-string (and (literal STR) (regexp STR)) regression

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* 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.
This commit is contained in:
Noam Postavsky 2019-06-26 08:47:56 -04:00
parent 260b6c2c93
commit 9233865b70
2 changed files with 6 additions and 2 deletions
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4
lisp/emacs-lisp/rx.el
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@ -874,7 +874,7 @@ If FORM is `(minimal-match FORM1)', non-greedy versions of `*',
(defun rx-regexp (form)
"Parse and produce code from FORM, which is `(regexp STRING)'."
(cond ((stringp form)
(cond ((stringp (cadr form))
(rx-group-if (cadr form) rx-parent))
(rx--compile-to-lisp
;; Always group non-string forms, since we can't be sure they
@ -884,7 +884,7 @@ If FORM is `(minimal-match FORM1)', non-greedy versions of `*',
(defun rx-literal (form)
"Parse and produce code from FORM, which is `(literal STRING-EXP)'."
(cond ((stringp form)
(cond ((stringp (cadr form))
;; This is allowed, but makes little sense, you could just
;; use STRING directly.
(rx-group-if (regexp-quote (cadr form)) rx-parent))

4
test/lisp/emacs-lisp/rx-tests.el
View File

@ -156,5 +156,9 @@
(rx-tests--match (rx "c" (minimal-match (0+ (regexp ad))) "a") "cdaaada" "cda")
(rx-tests--match (rx "c" (maximal-match (0+ (regexp ad))) "a") "cdaaada" "cdaaada")))
(ert-deftest rx-to-string-lisp-forms ()
(rx-tests--match (rx-to-string '(seq "a" (literal "b") "c")) "abc")
(rx-tests--match (rx-to-string '(seq "a" (regexp "b") "c")) "abc"))
(provide 'rx-tests)
;; rx-tests.el ends here.