2017-01-24 04:40:26 +00:00
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;;; ido-vertical-mode.el --- Makes ido-mode display vertically.
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;; Copyright (C) 2013, 2014 Steven Degutis
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;; Author: Steven Degutis
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;; Maintainer: Christopher Reichert <creichert07@gmail.com>
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;; Version: 1.0.0
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;; Keywords: convenience
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;; URL: https://github.com/creichert/ido-vertical-mode.el
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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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;;; Commentary:
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;; Makes ido-mode display prospects vertically
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;;; Code:
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(require 'ido)
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2021-01-10 20:14:15 +00:00
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(require 'cl-lib)
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2017-01-24 04:40:26 +00:00
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;;; The following three variables and their comments are lifted
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;;; directly from `ido.el'; they are defined here to avoid compile-log
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;;; warnings. See `ido.el' for more information.
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;; Non-nil if we should add [confirm] to prompt
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(defvar ido-show-confirm-message)
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;; Remember if current directory is non-readable (so we cannot do completion).
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(defvar ido-directory-nonreadable)
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;; Remember if current directory is 'huge' (so we don't want to do completion).
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(defvar ido-directory-too-big)
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(defcustom ido-vertical-indicator "->"
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"Indicator displayed next to the candidate that will be selected."
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:type 'string
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:group 'ido-vertical-mode)
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(defvar ido-vertical-decorations
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`(,(format "\n%s " ido-vertical-indicator) ; left bracket around prospect list
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"" ; right bracket around prospect list
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"\n " ; separator between prospects, depends on `ido-separator`
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"\n ..." ; inserted at the end of a truncated list of prospects
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"[" ; left bracket around common match string
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"]" ; right bracket around common match string
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" [No match]"
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" [Matched]"
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" [Not readable]"
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" [Too big]"
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" [Confirm]"
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,(format "\n%s " ido-vertical-indicator) ; left bracket around the sole remaining completion
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"" ; right bracket around the sole remaining completion
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)
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"Changing the decorations does most of the work for ido-vertical
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This sets up newlines and arrows before, between, and after the
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prospects. For additional information, see `ido-decorations'.")
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(defvar ido-vertical-old-decorations nil
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"The original `ido-decorations' variable
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We need to keep track of the original value so we can restore it
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when turning `ido-vertical-mode' off")
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(defvar ido-vertical-old-completions nil
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"The original `ido-completions' function
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We need to keep track of the original value of `ido-completions'
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so we can restore it when turning `ido-vertical-mode' off")
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(defgroup ido-vertical-mode nil
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"Make ido behave vertically."
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:group 'ido)
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(defcustom ido-vertical-show-count nil
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"Non nil means show the count of candidates while completing."
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:type 'boolean
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:group 'ido-vertical-mode)
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(defvar ido-vertical-count-active nil
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"Used internally to track whether we're already showing the count")
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(defcustom ido-vertical-define-keys nil
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"Defines which keys that `ido-vertical-mode' redefines."
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:type '(choice
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(const :tag "Keep default ido keys." nil)
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(const :tag "C-p and C-n are up & down in match" C-n-and-C-p-only)
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(const :tag "C-p/up and C-n/down are up and down in match." C-n-C-p-up-and-down)
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(const :tag "C-p/up, C-n/down are up/down in match. left or right cycle history or directory." C-n-C-p-up-down-left-right))
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:group 'ido-vertical-mode)
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(defcustom ido-vertical-pad-list t
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"Non nil means to pad the list of candidates to ensure the minibuffer area is always tall"
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:type 'boolean
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:group 'ido-vertical-mode)
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(defcustom ido-vertical-disable-if-short nil
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"Non nil means that ido will go back to horizontal mode if the candidates all fit in the minibuffer area"
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:type 'boolean
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:group 'ido-vertical-mode)
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(defface ido-vertical-first-match-face
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'((t (:inherit ido-first-match)))
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"Face used by Ido Vertical for highlighting first match."
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:group 'ido-vertical-mode)
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(defface ido-vertical-only-match-face
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'((t (:inherit ido-only-match)))
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"Face used by Ido Vertical for highlighting only match."
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:group 'ido-vertical-mode)
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(defface ido-vertical-match-face
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'((t (:inherit font-lock-variable-name-face :bold t :underline t)))
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"Face used by Ido Vertical for the matched part."
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:group 'ido-vertical-mode)
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(defun ido-vertical-or-horizontal-completions (name)
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(if (and ido-vertical-disable-if-short
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(<= (length ido-matches) ido-max-prospects))
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(let ((short-result
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(let ((ido-decorations ido-vertical-old-decorations))
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(funcall ido-vertical-old-completions name))))
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(if (>= (window-body-width (minibuffer-window))
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(+ (minibuffer-prompt-width)
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(length short-result)))
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short-result
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(ido-vertical-completions name)))
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(ido-vertical-completions name)))
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;; borrowed from ido.el and modified to work better when vertical
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(defun ido-vertical-completions (name)
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;; Return the string that is displayed after the user's text.
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;; Modified from `icomplete-completions'.
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(let* ((comps ido-matches)
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(ind (and (consp (car comps)) (> (length (cdr (car comps))) 1)
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ido-merged-indicator))
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(lencomps (length comps))
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(additional-items-indicator (nth 3 ido-decorations))
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(comps-empty (null comps))
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(ncomps lencomps)
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first)
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;; Keep the height of the suggestions list constant by padding
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;; when lencomps is too small. Also, if lencomps is too short, we
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;; should not indicate that there are additional prospects.
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(when (< lencomps (1+ ido-max-prospects))
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(setq additional-items-indicator "\n")
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(when ido-vertical-pad-list
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(setq comps (append comps (make-list (- (1+ ido-max-prospects) lencomps) "")))
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(setq ncomps (length comps))))
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(if (not ido-incomplete-regexp)
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(when ido-use-faces
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;; Make a copy of [ido-matches], otherwise the selected string
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;; could contain text properties which could lead to weird
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;; artifacts, e.g. buffer-file-name having text properties.
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2020-02-24 00:32:58 +00:00
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(setq comps (cl-loop for comps-i being the elements of (if (eq comps ido-matches)
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ido-matches
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comps)
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do
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(setf comps-i (substring-no-properties
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(if (listp comps-i)
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(car comps-i)
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comps-i)
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0))
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(when (string-match (if ido-enable-regexp name (regexp-quote name)) comps-i)
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(ignore-errors
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(add-face-text-property (match-beginning 0)
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(match-end 0)
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'ido-vertical-match-face
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nil comps-i)))
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collect comps-i))))
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2017-01-24 04:40:26 +00:00
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(if (and ind ido-use-faces)
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(put-text-property 0 1 'face 'ido-indicator ind))
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(when ido-vertical-show-count
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(setcar ido-vertical-decorations (format " [%d]\n%s " lencomps ido-vertical-indicator))
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(setq ido-vertical-count-active t))
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(when (and (not ido-vertical-show-count)
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ido-vertical-count-active)
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(setcar ido-vertical-decorations (format "\n%s "ido-vertical-indicator))
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(setq ido-vertical-count-active nil))
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(if (and ido-use-faces comps)
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(let* ((fn (ido-name (car comps)))
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(ln (length fn)))
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(setq first (format "%s" fn))
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(if (fboundp 'add-face-text-property)
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(add-face-text-property 0 (length first)
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(cond ((> lencomps 1)
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'ido-vertical-first-match-face)
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(ido-incomplete-regexp
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'ido-incomplete-regexp)
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(t
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'ido-vertical-only-match-face))
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nil first)
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(put-text-property 0 ln 'face
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(if (= lencomps 1)
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(if ido-incomplete-regexp
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'ido-incomplete-regexp
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'ido-vertical-only-match-face)
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'ido-vertical-first-match-face)
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first))
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(if ind (setq first (concat first ind)))
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(setq comps (cons first (cdr comps)))))
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;; Previously we'd check null comps to see if the list was
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;; empty. We pad the list with empty items to keep the list at a
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;; constant height, so we have to check if the entire list is
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;; empty, instead of (null comps)
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(cond (comps-empty
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(cond
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(ido-show-confirm-message
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(or (nth 10 ido-decorations) " [Confirm]"))
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(ido-directory-nonreadable
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(or (nth 8 ido-decorations) " [Not readable]"))
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(ido-directory-too-big
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(or (nth 9 ido-decorations) " [Too big]"))
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(ido-report-no-match
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(nth 6 ido-decorations)) ;; [No match]
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(t "")))
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(ido-incomplete-regexp
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(concat " " (car comps)))
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((null (cdr comps)) ;one match
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(concat (concat (nth 11 ido-decorations) ;; [ ... ]
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(ido-name (car comps))
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(nth 12 ido-decorations))
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(if (not ido-use-faces) (nth 7 ido-decorations)))) ;; [Matched]
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(t ;multiple matches
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(let* ((items (if (> ido-max-prospects 0) (1+ ido-max-prospects) 999))
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(alternatives
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(apply
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#'concat
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(cdr (apply
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#'nconc
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(mapcar
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(lambda (com)
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(setq com (ido-name com))
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(setq items (1- items))
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(cond
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((< items 0) ())
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((= items 0) (list additional-items-indicator)) ; " | ..."
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(t
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(list (nth 2 ido-decorations) ; " | "
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(let ((str (substring com 0)))
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(if (and ido-use-faces
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(not (string= str first))
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(ido-final-slash str))
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(put-text-property 0 (length str) 'face 'ido-subdir str))
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str)))))
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comps))))))
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(concat
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;; put in common completion item -- what you get by pressing tab
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(if (and (stringp ido-common-match-string)
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(> (length ido-common-match-string) (length name)))
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(concat (nth 4 ido-decorations) ;; [ ... ]
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(substring ido-common-match-string (length name))
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(nth 5 ido-decorations)))
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;; list all alternatives
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(nth 0 ido-decorations) ;; { ... }
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alternatives
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(nth 1 ido-decorations)))))))
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(defun ido-vertical-disable-line-truncation ()
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"Prevent the newlines in the minibuffer from being truncated"
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(set (make-local-variable 'truncate-lines) nil))
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(defun turn-on-ido-vertical ()
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(if (and (eq nil ido-vertical-old-decorations)
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(eq nil ido-vertical-old-completions))
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(progn
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(setq ido-vertical-old-decorations ido-decorations)
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(setq ido-vertical-old-completions (symbol-function 'ido-completions))))
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(setq ido-decorations ido-vertical-decorations)
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(fset 'ido-completions 'ido-vertical-or-horizontal-completions)
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(add-hook 'ido-minibuffer-setup-hook 'ido-vertical-disable-line-truncation)
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(add-hook 'ido-setup-hook 'ido-vertical-define-keys))
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(defun turn-off-ido-vertical ()
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(setq ido-decorations ido-vertical-old-decorations)
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(fset 'ido-completions ido-vertical-old-completions)
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(remove-hook 'ido-minibuffer-setup-hook 'ido-vertical-disable-line-truncation)
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(remove-hook 'ido-setup-hook 'ido-vertical-define-keys))
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(defun ido-vertical-next-match ()
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"Call the correct next-match function for right key.
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This is based on:
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- Different functions for completing directories and prior history.
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"
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(interactive)
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(cond
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((and (boundp 'item) item (eq item 'file))
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(ido-next-match-dir))
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(t
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(next-history-element 1))))
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(defun ido-vertical-prev-match ()
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"Call the correct prev-match function for left key.
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This is based on:
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- Different functions for completing directories and prior history.
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"
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(interactive)
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(cond
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((and (boundp 'item) item (eq item 'file))
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(ido-prev-match-dir))
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(t
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(previous-history-element 1))))
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(defun ido-vertical-define-keys () ;; C-n/p is more intuitive in vertical layout
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(when ido-vertical-define-keys
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(define-key ido-completion-map (kbd "C-n") 'ido-next-match)
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(define-key ido-completion-map (kbd "C-p") 'ido-prev-match)
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(define-key ido-completion-map (kbd "C-c C-t") 'ido-toggle-prefix))
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(when (memq ido-vertical-define-keys '(C-n-C-p-up-and-down C-n-C-p-up-down-left-right))
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(define-key ido-completion-map (kbd "<up>") 'ido-prev-match)
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(define-key ido-completion-map (kbd "<down>") 'ido-next-match))
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(when (eq ido-vertical-define-keys 'C-n-C-p-up-down-left-right)
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(define-key ido-completion-map (kbd "<left>") 'ido-vertical-prev-match)
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(define-key ido-completion-map (kbd "<right>") 'ido-vertical-next-match)))
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;;;###autoload
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(define-minor-mode ido-vertical-mode
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"Makes ido-mode display vertically."
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:global t
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:group 'ido-vertical-mode
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(if ido-vertical-mode
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(turn-on-ido-vertical)
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(turn-off-ido-vertical)))
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(provide 'ido-vertical-mode)
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;; Local Variables:
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;; indent-tabs-mode: nil
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;; End:
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;;; ido-vertical-mode.el ends here
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