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131 lines
4.8 KiB
131 lines
4.8 KiB
9 years ago
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;;; cider-apropos.el --- Apropos functionality for Clojure -*- lexical-binding: t -*-
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;; Copyright © 2014-2015 Jeff Valk, Bozhidar Batsov
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;;
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;; Author: Jeff Valk <jv@jeffvalk.com>
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;; This file is not part of GNU Emacs.
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;;; Commentary:
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;; Apropos functionality for Clojure.
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;;; Code:
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(require 'cider-doc)
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(require 'cider-util)
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(require 'cider-compat)
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(require 'cider-client)
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(require 'cider-popup)
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(require 'nrepl-client)
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(require 'clojure-mode)
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(require 'apropos)
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(require 'button)
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(defconst cider-apropos-buffer "*cider-apropos*")
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(push cider-apropos-buffer cider-ancillary-buffers)
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(defun cider-apropos-doc (button)
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"Display documentation for the symbol represented at BUTTON."
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(cider-doc-lookup (button-get button 'apropos-symbol)))
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(defun cider-apropos-summary (query ns docs-p include-private-p case-sensitive-p)
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"Return a short description for the performed apropos search."
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(concat (if case-sensitive-p "Case-sensitive " "")
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(if docs-p "Documentation " "")
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(format "Apropos for %S" query)
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(if ns (format " in namespace %S" ns) "")
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(if include-private-p
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" (public and private symbols)"
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" (public symbols only)")))
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(defun cider-apropos-highlight (doc query)
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"Return the DOC string propertized to highlight QUERY matches."
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(let ((pos 0))
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(while (string-match query doc pos)
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(setq pos (match-end 0))
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(put-text-property (match-beginning 0)
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(match-end 0)
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'font-lock-face apropos-match-face doc)))
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doc)
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(defun cider-apropos-result (result query docs-p)
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"Emit a RESULT matching QUERY into current buffer, formatted for DOCS-P."
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(nrepl-dbind-response result (name type doc)
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(let* ((label (capitalize (if (string= type "variable") "var" type)))
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(help (concat "Display doc for this " (downcase label))))
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(cider-propertize-region (list 'apropos-symbol name
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'action 'cider-apropos-doc
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'help-echo help)
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(insert-text-button name 'type 'apropos-symbol)
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(insert "\n ")
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(insert-text-button label 'type (intern (concat "apropos-" type)))
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(insert ": ")
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(let ((beg (point)))
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(if docs-p
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(insert (cider-apropos-highlight doc query) "\n")
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(insert doc)
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(fill-region beg (point))))
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(insert "\n")))))
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(declare-function cider-mode "cider-mode")
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(defun cider-show-apropos (summary results query docs-p)
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"Show SUMMARY and RESULTS for QUERY in a pop-up buffer, formatted for DOCS-P."
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(with-current-buffer (cider-popup-buffer cider-apropos-buffer t)
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(let ((inhibit-read-only t))
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(set-syntax-table clojure-mode-syntax-table)
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(apropos-mode)
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(cider-mode)
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(if (boundp 'header-line-format)
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(setq-local header-line-format summary)
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(insert summary "\n\n"))
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(dolist (result results)
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(cider-apropos-result result query docs-p))
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(goto-char (point-min)))))
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;;;###autoload
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(defun cider-apropos (query &optional ns docs-p privates-p case-sensitive-p)
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"Show all symbols whose names match QUERY, a regular expression.
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The search may be limited to the namespace NS, and may optionally search doc
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strings, include private vars, and be case sensitive."
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(interactive
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(if current-prefix-arg
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(list (read-string "Clojure Apropos: ")
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(let ((ns (read-string "Namespace: ")))
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(if (string= ns "") nil ns))
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(y-or-n-p "Search doc strings? ")
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(y-or-n-p "Include private symbols? ")
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(y-or-n-p "Case-sensitive? "))
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(list (read-string "Clojure Apropos: "))))
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(cider-ensure-op-supported "apropos")
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(if-let ((summary (cider-apropos-summary
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query ns docs-p privates-p case-sensitive-p))
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(results (cider-sync-request:apropos query ns docs-p privates-p case-sensitive-p)))
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(cider-show-apropos summary results query docs-p)
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(message "No apropos matches for %S" query)))
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;;;###autoload
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(defun cider-apropos-documentation ()
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"Shortcut for (cider-apropos <query> nil t)."
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(interactive)
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(cider-apropos (read-string "Clojure documentation Apropos: ") nil t))
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(provide 'cider-apropos)
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