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229 satır
9.4 KiB
229 satır
9.4 KiB
;;; cider-find.el --- Functionality for finding things -*- lexical-binding: t -*-
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;; Copyright © 2013-2019 Bozhidar Batsov, Artur Malabarba and CIDER contributors
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;;
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;; Author: Bozhidar Batsov <bozhidar@batsov.com>
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;; Artur Malabarba <bruce.connor.am@gmail.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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;; A bunch of commands for finding resources and definitions.
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;;; Code:
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(require 'cider-client)
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(require 'cider-common)
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(require 'thingatpt)
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(defun cider--find-var-other-window (var &optional line)
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"Find the definition of VAR, optionally at a specific LINE.
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Display the results in a different window."
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(if-let* ((info (cider-var-info var)))
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(progn
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(if line (setq info (nrepl-dict-put info "line" line)))
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(cider--jump-to-loc-from-info info t))
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(user-error "Symbol `%s' not resolved" var)))
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(defun cider--find-var (var &optional line)
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"Find the definition of VAR, optionally at a specific LINE."
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(if-let* ((info (cider-var-info var)))
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(progn
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(if line (setq info (nrepl-dict-put info "line" line)))
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(cider--jump-to-loc-from-info info))
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(user-error "Symbol `%s' not resolved" var)))
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;;;###autoload
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(defun cider-find-var (&optional arg var line)
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"Find definition for VAR at LINE.
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Prompt according to prefix ARG and `cider-prompt-for-symbol'.
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A single or double prefix argument inverts the meaning of
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`cider-prompt-for-symbol'. A prefix of `-` or a double prefix argument causes
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the results to be displayed in a different window. The default value is
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thing at point."
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(interactive "P")
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(if var
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(cider--find-var var line)
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(funcall (cider-prompt-for-symbol-function arg)
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"Symbol"
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(if (cider--open-other-window-p arg)
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#'cider--find-var-other-window
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#'cider--find-var))))
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;;;###autoload
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(defun cider-find-dwim-at-mouse (event)
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"Find and display variable or resource at mouse EVENT."
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(interactive "e")
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(if-let* ((symbol-file (save-excursion
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(mouse-set-point event)
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(cider-symbol-at-point 'look-back))))
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(cider-find-dwim symbol-file)
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(user-error "No variable or resource here")))
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(defun cider--find-dwim (symbol-file callback &optional other-window)
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"Find the SYMBOL-FILE at point.
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CALLBACK upon failure to invoke prompt if not prompted previously.
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Show results in a different window if OTHER-WINDOW is true."
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(if-let* ((info (cider-var-info symbol-file)))
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(cider--jump-to-loc-from-info info other-window)
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(progn
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(cider-ensure-op-supported "resource")
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(if-let* ((resource (cider-sync-request:resource symbol-file))
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(buffer (cider-find-file resource)))
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(cider-jump-to buffer 0 other-window)
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(if (cider--prompt-for-symbol-p current-prefix-arg)
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(error "Resource or var %s not resolved" symbol-file)
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(let ((current-prefix-arg (if current-prefix-arg nil '(4))))
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(call-interactively callback)))))))
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(defun cider--find-dwim-interactive (prompt)
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"Get interactive arguments for jump-to functions using PROMPT as needed."
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(if (cider--prompt-for-symbol-p current-prefix-arg)
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(list
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(cider-read-from-minibuffer prompt (thing-at-point 'filename)))
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(list (or (thing-at-point 'filename) "")))) ; No prompt.
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(defun cider-find-dwim-other-window (symbol-file)
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"Jump to SYMBOL-FILE at point, place results in other window."
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(interactive (cider--find-dwim-interactive "Jump to: "))
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(cider--find-dwim symbol-file 'cider-find-dwim-other-window t))
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;;;###autoload
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(defun cider-find-dwim (symbol-file)
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"Find and display the SYMBOL-FILE at point.
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SYMBOL-FILE could be a var or a resource. If thing at point is empty then
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show dired on project. If var is not found, try to jump to resource of the
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same name. When called interactively, a prompt is given according to the
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variable `cider-prompt-for-symbol'. A single or double prefix argument
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inverts the meaning. A prefix of `-' or a double prefix argument causes
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the results to be displayed in a different window. A default value of thing
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at point is given when prompted."
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(interactive (cider--find-dwim-interactive "Jump to: "))
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(cider--find-dwim symbol-file `cider-find-dwim
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(cider--open-other-window-p current-prefix-arg)))
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;;;###autoload
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(defun cider-find-resource (path)
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"Find the resource at PATH.
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Prompt for input as indicated by the variable `cider-prompt-for-symbol'.
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A single or double prefix argument inverts the meaning of
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`cider-prompt-for-symbol'. A prefix argument of `-` or a double prefix
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argument causes the results to be displayed in other window. The default
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value is thing at point."
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(interactive
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(list
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(if (cider--prompt-for-symbol-p current-prefix-arg)
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(completing-read "Resource: "
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(cider-sync-request:resources-list)
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nil nil
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(thing-at-point 'filename))
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(or (thing-at-point 'filename) ""))))
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(cider-ensure-op-supported "resource")
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(when (= (length path) 0)
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(error "Cannot find resource for empty path"))
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(if-let* ((resource (cider-sync-request:resource path))
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(buffer (cider-find-file resource)))
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(cider-jump-to buffer nil (cider--open-other-window-p current-prefix-arg))
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(if (cider--prompt-for-symbol-p current-prefix-arg)
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(error "Cannot find resource %s" path)
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(let ((current-prefix-arg (cider--invert-prefix-arg current-prefix-arg)))
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(call-interactively 'cider-find-resource)))))
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(defun cider--invert-prefix-arg (arg)
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"Invert the effect of prefix value ARG on `cider-prompt-for-symbol'.
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This function preserves the `other-window' meaning of ARG."
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(let ((narg (prefix-numeric-value arg)))
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(pcase narg
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(16 -1) ; empty empty -> -
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(-1 16) ; - -> empty empty
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(4 nil) ; empty -> no-prefix
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(_ 4)))) ; no-prefix -> empty
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(defun cider--prefix-invert-prompt-p (arg)
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"Test prefix value ARG for its effect on `cider-prompt-for-symbol`."
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(let ((narg (prefix-numeric-value arg)))
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(pcase narg
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(16 t) ; empty empty
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(4 t) ; empty
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(_ nil))))
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(defun cider--prompt-for-symbol-p (&optional prefix)
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"Check if cider should prompt for symbol.
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Tests againsts PREFIX and the value of `cider-prompt-for-symbol'.
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Invert meaning of `cider-prompt-for-symbol' if PREFIX indicates it should be."
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(if (cider--prefix-invert-prompt-p prefix)
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(not cider-prompt-for-symbol) cider-prompt-for-symbol))
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(defun cider--find-ns (ns &optional other-window)
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"Find the file containing NS's definition.
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Optionally open it in a different window if OTHER-WINDOW is truthy."
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(if-let* ((path (cider-sync-request:ns-path ns)))
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(cider-jump-to (cider-find-file path) nil other-window)
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(user-error "Can't find namespace `%s'" ns)))
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;;;###autoload
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(defun cider-find-ns (&optional arg ns)
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"Find the file containing NS.
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A prefix ARG of `-` or a double prefix argument causes
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the results to be displayed in a different window."
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(interactive "P")
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(cider-ensure-connected)
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(cider-ensure-op-supported "ns-path")
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(if ns
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(cider--find-ns ns)
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(let* ((namespaces (cider-sync-request:ns-list))
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(ns (completing-read "Find namespace: " namespaces)))
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(cider--find-ns ns (cider--open-other-window-p arg)))))
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;;;###autoload
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(defun cider-find-keyword (&optional arg)
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"Find the namespace of the keyword at point and its first occurrence there.
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For instance - if the keyword at point is \":cider.demo/keyword\", this command
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would find the namespace \"cider.demo\" and afterwards find the first mention
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of \"::keyword\" there.
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Prompt according to prefix ARG and `cider-prompt-for-symbol'.
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A single or double prefix argument inverts the meaning of
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`cider-prompt-for-symbol'. A prefix of `-` or a double prefix argument causes
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the results to be displayed in a different window. The default value is
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thing at point."
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(interactive "P")
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(cider-ensure-connected)
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(let* ((kw (let ((kw-at-point (cider-symbol-at-point 'look-back)))
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(if (or cider-prompt-for-symbol arg)
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(read-string
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(format "Keyword (default %s): " kw-at-point)
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nil nil kw-at-point)
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kw-at-point)))
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(ns-qualifier (and
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(string-match "^:+\\(.+\\)/.+$" kw)
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(match-string 1 kw)))
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(kw-ns (if ns-qualifier
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(cider-resolve-alias (cider-current-ns) ns-qualifier)
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(cider-current-ns)))
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(kw-to-find (concat "::" (replace-regexp-in-string "^:+\\(.+/\\)?" "" kw))))
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(when (and ns-qualifier (string= kw-ns (cider-current-ns)))
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(error "Could not resolve alias `%s' in `%s'" ns-qualifier (cider-current-ns)))
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(cider--find-ns kw-ns arg)
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(search-forward-regexp kw-to-find nil 'noerror)))
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(provide 'cider-find)
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;;; cider-find.el ends here
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