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ghc-merge-lines.

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This commit is contained in:
Kazu Yamamoto 2014-03-25 15:57:59 +09:00
parent ce87ab328a
commit a6f6dbffe4
1 changed files with 25 additions and 1 deletions
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26
elisp/ghc-command.el
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@ -51,7 +51,31 @@
(lambda ()
(re-search-forward "^import\\( *qualified\\)? *" nil t)
nil)
'end-of-line)))))
'end-of-line))
(ghc-merge-lines))))
(defun ghc-merge-lines ()
(let ((case-fold-search nil))
(goto-char (point-min))
(while (not (eolp))
(if (looking-at "^import *\\([A-Z][^ \n]+\\) *(\\(.*\\))$")
(let ((mod (match-string-no-properties 1))
(syms (match-string-no-properties 2))
(beg (point)))
(forward-line)
(ghc-merge-line beg mod syms))
(forward-line)))))
(defun ghc-merge-line (beg mod syms)
(let ((regex (concat "^import *" (regexp-quote mod) " *(\\(.*\\))$"))
duplicated)
(while (looking-at regex)
(setq duplicated t)
(setq syms (concat syms ", " (match-string-no-properties 1)))
(forward-line))
(when duplicated
(delete-region beg (point))
(insert "import " mod " (" syms ")\n"))))
(defun ghc-save-buffer ()
(interactive)