ghc-mod/elisp/ghc-doc.el

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2010-01-06 05:38:06 +00:00
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; ghc.el
;;;
;; Author: Kazu Yamamoto <Kazu@Mew.org>
;; Created: Sep 25, 2009
(require 'ghc-func)
(require 'ghc-comp)
;;; Code:
(defun ghc-browse-document ()
(interactive)
(let* ((mod0 (ghc-extract-module))
(mod (ghc-read-module-name mod0))
(pkg (ghc-resolve-package-name mod)))
(ghc-display-document pkg mod)))
(defun ghc-resolve-package-name (mod)
(with-temp-buffer
(call-process "ghc-pkg" nil t nil "find-module" "--simple-output" mod)
(goto-char (point-min))
(when (looking-at "^\\([^-]+\\)-")
(match-string-no-properties 1))))
(defun ghc-resolve-document-path (pkg)
(with-temp-buffer
(call-process "ghc-pkg" nil t nil "field" pkg "haddock-html")
(goto-char (point-min))
(when (looking-at "^haddock-html: \\([^ \n]+\\)$")
(match-string-no-properties 1))))
(defun ghc-display-document (pkg mod)
(when (and pkg mod)
(let* ((mod- (ghc-replace-character mod ?. ?-))
(path (ghc-resolve-document-path pkg))
(url (format "file://%s/%s.html" path mod-)))
(browse-url url))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defvar ghc-input-map nil)
(unless ghc-input-map
(setq ghc-input-map
(if (boundp 'minibuffer-local-map)
(copy-keymap minibuffer-local-map)
(make-sparse-keymap)))
(define-key ghc-input-map "\t" 'ghc-complete))
(provide 'ghc-doc)