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Improve treatment of Fortran's "class default"

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* lisp/progmodes/f90.el (f90-start-block-re, f90-no-block-limit):
Handle "class default".  (Bug#28786)
* test/automated/f90.el (f90-test-bug25039): Add "class default".
This commit is contained in:
Glenn Morris 2017-10-19 20:05:48 -04:00
parent 234b1e3864
commit ddd547fada
2 changed files with 18 additions and 8 deletions
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12
lisp/progmodes/f90.el
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@ -909,6 +909,8 @@ Can be overridden by the value of `font-lock-maximum-decoration'.")
[ \t]*\\(\\(?:\\sw\\|\\s_\\)+\\)"
"Regexp matching the definition of a derived type.")
;; Maybe this should include "class default", but the constant is no
;; longer used.
(defconst f90-typeis-re
"\\_<\\(class\\|type\\)[ \t]*is[ \t]*("
"Regexp matching a CLASS/TYPE IS statement.")
@ -955,10 +957,14 @@ Used in the F90 entry in `hs-special-modes-alist'.")
;; Avoid F2003 "type is" in "select type",
;; and also variables of derived type "type (foo)".
;; "type, foo" must be a block (?).
;; And a partial effort to avoid "class default".
"\\(?:type\\|class\\)[ \t,]\\("
"[^i(!\n\"& \t]\\|" ; not-i(
"[^id(!\n\"& \t]\\|" ; not-id(
"i[^s!\n\"& \t]\\|" ; i not-s
"is\\(?:\\sw\\|\\s_\\)\\)\\|"
"d[^e!\n\"& \t]\\|" ; d not-e
"de[^f!\n\"& \t]\\|" ; de not-f
"def[^a!\n\"& \t]\\|" ; def not-a
"\\(?:is\\|default\\)\\(?:\\sw\\|\\s_\\)\\)\\|"
;; "abstract interface" is F2003; "submodule" is F2008.
"program\\|\\(?:abstract[ \t]*\\)?interface\\|\\(?:sub\\)?module\\|"
;; "enum", but not "enumerator".
@ -1454,7 +1460,7 @@ if all else fails."
(not (or (looking-at "end")
(looking-at "\\(do\\|if\\|else\\(if\\|where\\)?\
\\|select[ \t]*\\(case\\|type\\)\\|case\\|where\\|forall\\|\
\\(?:class\\|type\\)[ \t]*is\\|\
\\(?:class\\|type\\)[ \t]*is\\|class[ \t]*default\\|\
block\\|critical\\|enum\\|associate\\)\\_>")
(looking-at "\\(program\\|\\(?:sub\\)?module\\|\
\\(?:abstract[ \t]*\\)?interface\\|block[ \t]*data\\)\\_>")

14
test/lisp/progmodes/f90-tests.el
View File

@ -256,21 +256,25 @@ end program prog")
(should (= 5 (current-indentation)))))
(ert-deftest f90-test-bug25039 ()
"Test for https://debbugs.gnu.org/25039 ."
"Test for https://debbugs.gnu.org/25039 and 28786."
(with-temp-buffer
(f90-mode)
(insert "program prog
select type (a)
class is (c1)
x = 1
type is (t1)
x = 2
class is (c1)
x = 1
class default
x=3
end select
end program prog")
(f90-indent-subprogram)
(forward-line -3)
(should (= 2 (current-indentation))) ; type is
(should (= 2 (current-indentation))) ; class default
(forward-line -2)
(should (= 2 (current-indentation))))) ; class is
(should (= 2 (current-indentation))) ; class is
(forward-line -2)
(should (= 2 (current-indentation))))) ; type is
;;; f90-tests.el ends here