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-rw-r--r--lib/tools/emacs/erlang.el31
-rw-r--r--lib/tools/emacs/test.erl.indented8
-rw-r--r--lib/tools/emacs/test.erl.orig8
3 files changed, 38 insertions, 9 deletions
diff --git a/lib/tools/emacs/erlang.el b/lib/tools/emacs/erlang.el
index 0c003bab39..3610356355 100644
--- a/lib/tools/emacs/erlang.el
+++ b/lib/tools/emacs/erlang.el
@@ -2444,7 +2444,10 @@ This is automagically called by the user level function `indent-region'."
;; Parse the Erlang code from the beginning of the clause to
;; the beginning of the region.
(while (< (point) indent-point)
- (setq state (erlang-partial-parse (point) indent-point state)))
+ (let ((pt (point)))
+ (setq state (erlang-partial-parse pt indent-point state))
+ (if (= pt (point))
+ (error "Illegal syntax"))))
;; Indent every line in the region
(while continue
(goto-char indent-point)
@@ -2480,8 +2483,11 @@ This is automagically called by the user level function `indent-region'."
(if (>= from-end (- (point-max) indent-point))
(setq continue nil)
(while (< (point) indent-point)
- (setq state (erlang-partial-parse
- (point) indent-point state))))))))
+ (let ((pt (point)))
+ (setq state (erlang-partial-parse
+ pt indent-point state))
+ (if (= pt (point))
+ (error "Illegal syntax")))))))))
(defun erlang-indent-current-buffer ()
@@ -2528,7 +2534,10 @@ Return nil if line starts inside string, t if in a comment."
(goto-char parse-start)
(erlang-beginning-of-clause))
(while (< (point) indent-point)
- (setq state (erlang-partial-parse (point) indent-point state)))
+ (let ((pt (point)))
+ (setq state (erlang-partial-parse pt indent-point state))
+ (if (= pt (point))
+ (error "Illegal syntax"))))
(erlang-calculate-stack-indent indent-point state))))
(defun erlang-show-syntactic-information ()
@@ -2698,12 +2707,13 @@ Value is list (stack token-start token-type in-what)."
(erlang-push (list '|| token (current-column)) stack)
(forward-char 2))
- ;; Bit-syntax open paren
- ((looking-at "<<")
+ ;; Bit-syntax open. Note that map syntax allows "<<" to follow ":="
+ ;; or "=>" without intervening whitespace, so handle that case here
+ ((looking-at "\\(:=\\|=>\\)?<<")
(erlang-push (list '<< token (current-column)) stack)
- (forward-char 2))
+ (forward-char (- (match-end 0) (match-beginning 0))))
- ;; Bbit-syntax close paren
+ ;; Bit-syntax close
((looking-at ">>")
(while (memq (car (car stack)) '(|| ->))
(erlang-pop stack))
@@ -4188,7 +4198,10 @@ This function is designed to be a member of a criteria list."
;; Do not return `stop' when inside a list comprehension
;; construction. (The point must be after `||').
(while (< (point) orig-point)
- (setq state (erlang-partial-parse (point) orig-point state)))
+ (let ((pt (point)))
+ (setq state (erlang-partial-parse pt orig-point state))
+ (if (= pt (point))
+ (error "Illegal syntax"))))
(if (and (car state) (eq (car (car (car state))) '||))
nil
'stop)))
diff --git a/lib/tools/emacs/test.erl.indented b/lib/tools/emacs/test.erl.indented
index 1c1086ca58..abb05fd59b 100644
--- a/lib/tools/emacs/test.erl.indented
+++ b/lib/tools/emacs/test.erl.indented
@@ -32,6 +32,14 @@
-module(test).
-compile(export_all).
+%% Used to cause an "Unbalanced parentheses" error.
+foo(M) ->
+ M#{a :=<<"a">>
+ ,b:=1}.
+foo() ->
+ #{a =><<"a">>
+ ,b=>1}.
+
%% Module attributes should be highlighted
-export([t/1]).
diff --git a/lib/tools/emacs/test.erl.orig b/lib/tools/emacs/test.erl.orig
index a9d09000d2..3d8f29fe18 100644
--- a/lib/tools/emacs/test.erl.orig
+++ b/lib/tools/emacs/test.erl.orig
@@ -32,6 +32,14 @@
-module(test).
-compile(export_all).
+%% Used to cause an "Unbalanced parentheses" error.
+foo(M) ->
+M#{a :=<<"a">>
+,b:=1}.
+foo() ->
+#{a =><<"a">>
+,b=>1}.
+
%% Module attributes should be highlighted
-export([t/1]).