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Jump to next/previous prompt in haskell-interactive-mode #391

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Merged
merged 1 commit into from
Jan 17, 2015
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Jump to next/previous prompt in haskell-interactive-mode #391

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17 changes: 17 additions & 0 deletions haskell-interactive-mode.el
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,8 @@ interference with prompts that look like haskell expressions."
(define-key map (kbd "C-c C-z") 'haskell-interactive-switch-back)
(define-key map (kbd "M-p") 'haskell-interactive-mode-history-previous)
(define-key map (kbd "M-n") 'haskell-interactive-mode-history-next)
(define-key map (kbd "C-c C-p") 'haskell-interactive-mode-prompt-previous)
(define-key map (kbd "C-c C-n") 'haskell-interactive-mode-prompt-next)
(define-key map (kbd "C-<up>") 'haskell-interactive-mode-history-previous)
(define-key map (kbd "C-<down>") 'haskell-interactive-mode-history-next)
(define-key map (kbd "TAB") 'haskell-interactive-mode-tab)
Expand Down Expand Up @@ -960,6 +962,21 @@ don't care when the thing completes as long as it's soonish."
(setq haskell-interactive-mode-history-index 0)
(haskell-interactive-mode-history-toggle -1))))

(defun haskell-interactive-mode-prompt-previous ()
"Jump to the previous prompt."
(interactive)
(let ((prev-prompt-pos
(save-excursion
(beginning-of-line) ;; otherwise prompt at current line matches
(and (search-backward-regexp (haskell-interactive-prompt-regex) nil t)
(match-end 0)))))
(when prev-prompt-pos (goto-char prev-prompt-pos))))

(defun haskell-interactive-mode-prompt-next ()
"Jump to the next prompt."
(interactive)
(search-forward-regexp (haskell-interactive-prompt-regex) nil t))

(defun haskell-interactive-mode-clear ()
"Clear the screen and put any current input into the history."
(interactive)
Expand Down