branch: elpa/lua-mode
commit a52e6b1cb70b0ece1d1b7302aff189e9587c061d
Author: immerrr <imme...@gmail.com>
Commit: immerrr <imme...@gmail.com>
lua-left-shift-regexp: optimize and greatly reduce size
---
lua-mode.el | 40 +++++-----------------------------------
1 file changed, 5 insertions(+), 35 deletions(-)
diff --git a/lua-mode.el b/lua-mode.el
index 0de813b..834f737 100644
--- a/lua-mode.el
+++ b/lua-mode.el
@@ -784,38 +784,10 @@ one."
(cdr indentation-info)
(if (lua-is-continuing-statement-p) (- lua-indent-level) 0)))))
-(defconst lua-left-shift-regexp-1
- (concat "\\("
- "\\(\\_<" (regexp-opt '("else" "elseif" "until") t)
- "\\_>\\)\\($\\|\\s +\\)"
- "\\)"))
-
-(defconst lua-left-shift-regexp-2
- (concat "\\(\\_<"
- (regexp-opt '("end") t)
- "\\_>\\)"))
-
-(defconst lua-left-shift-regexp
- ;; "else", "elseif", "until" followed by whitespace, or "end"/closing
- ;; brackets followed by
- ;; whitespace, punctuation, or closing parentheses
- (concat lua-left-shift-regexp-1
- "\\|\\(\\("
- lua-left-shift-regexp-2
- "\\|\\("
- (regexp-opt '("]" "}" ")"))
- "\\)\\)\\($\\|\\(\\s \\|\\s.\\)*\\)"
- "\\)"))
-
-(defconst lua-left-shift-pos-1
- 2)
-
-(defconst lua-left-shift-pos-2
- (+ 3 (regexp-opt-depth lua-left-shift-regexp-1)))
-
-(defconst lua-left-shift-pos-3
- (+ lua-left-shift-pos-2
- (regexp-opt-depth lua-left-shift-regexp-2)))
+(defconst lua-unindentation-regexp
+ (concat "\\s *" ;; else/elseif/until/end/"]"/"}"/")"
+ "\\(?1:\\_<" (regexp-opt '("else" "elseif" "until" "end")) "\\_>"
+ "\\|" (regexp-opt '("]" "}" ")")) "\\)"))
(defun lua-calculate-indentation-left-shift (&optional parse-start)
"Return amount, by which this line should be shifted left.
@@ -833,9 +805,7 @@ to the left by the amount specified in lua-indent-level."
(catch 'stop
(while (and (looking-at lua-left-shift-regexp)
(not (lua-comment-or-string-p)))
- (let ((last-token (or (match-string lua-left-shift-pos-1)
- (match-string lua-left-shift-pos-2)
- (match-string lua-left-shift-pos-3))))
+ (let ((last-token (or (match-string 1) (match-string 2))))
(if (not block-token) (setq block-token last-token))
(if (not (string-equal block-token last-token)) (throw 'stop nil))
(setq indentation-modifier (+ indentation-modifier
