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auto-highlight-symbol.el
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auto-highlight-symbol.el
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;;; auto-highlight-symbol.el --- Automatic highlighting current symbol minor mode
;; Copyright (C) 2009 2010 Mitsuo Saito
;; Created date 2009-03-03 21:44 +0900
;; Author: Mitsuo Saito <arch320@NOSPAM.gmail.com>
;; Version: 1.54 beta
;; Keywords: highlight face match convenience
;; URL: http://github.com/mitsuo-saito/auto-highlight-symbol-mode/raw/master/auto-highlight-symbol.el
;; Compatibility: GNU Emacs 22.3 23.x 24.x later
;;
;; This file is NOT part of GNU Emacs.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; If you have `linkd.el' turn on `linkd-mode'
;; and (setq linkd-use-icons t ) more easily navigation.
;; You can get `linkd.el' here:
;; http://www.emacswiki.org/cgi-bin/wiki/download/linkd.el
;; http://www.emacswiki.org/emacs/linkd.tar.gz -- with cool icon
;;
;;; (@* "Index" )
;;
;; (@> "What's this") I am ...
;; (@> "Setup") Basic setup
;; (@> "Screencast") Screencast
;; (@> "Mode map") Key binding
;;
;; (@> "Note") Performance note
;;
;; (@> "Custom variable") Customizable varible
;; (@> "Face") Face used in auto-highlight-symbol-mode
;; (@> "Highlight Rules") Whether to highlight the symbol.
;;
;; (@> "Internal variable") Internal variables
;; (@> "Logging") Log data
;; (@> "Range plugin") Range plugin functions
;; (@> "Built-in plugin") Built-in plugin section
;; (@> "Timer") Timer functions
;; (@> "Idle") Idle functions
;; (@> "Highlight") Highlight functions
;; (@> "Edit mode") Edit mode functions
;; (@> "Select") Selective functions
;; (@> "Misc") Miscellaneous
;; (@> "Interactive") Interactive functions
;; (@> "Define mode") Mode definition
;; (@> "Revert") Protect from revert-buffer
;;
;;; (@* "What's this" )
;;
;; A minor mode for emacs.
;;
;; * automatic highlighting current symbol like eclipse IDE.
;; * cycle through highlighted locations.
;; * can specify the range to highlight.
;; * can edit the highlighted symbols at a time.
;;
;; Tested on GNU Emacs 22.3/23.2/24.0.50
;;
;;; (@* "Setup" )
;;
;; Basic steps to setup:
;; 1. Place `auto-highlight-symbol.el' in your `load-path'.
;;
;; 2. In your `.emacs.el' file
;; (require 'auto-highlight-symbol)
;; (global-auto-highlight-symbol-mode t)
;;
;;; (@* "Screencast" )
;;
;; Screencast on YouTube and ScreenToaster
;; YouTube -- http://www.youtube.com/watch?v=xzJ2r4-s7fo
;; ScreenToaster -- http://www.screentoaster.com/watch/stUE9VQ0dMRFtXRlVeU19cX1Bd/auto_highlight_symbol_mode_screencast
;;
;;
;;; More Information (currently underconstruction)
;; See also http://github.com/mitsuo-saito/auto-highlight-symbol-mode/wiki/
;;
;;; Commands:
;;
;; Below are complete command list:
;;
;; `ahs-forward'
;; Select highlighted symbols forwardly.
;; `ahs-backward'
;; Select highlighted symbols backwardly.
;; `ahs-forward-definition'
;; Select highlighted symbols forwardly. only symbol definition.
;; `ahs-backward-definition'
;; Select highlighted symbols backwardly. only symbol definition.
;; `ahs-back-to-start'
;; Go back to the starting point.
;; `ahs-change-range'
;; Current plugin change to `RANGE' plugin. `RANGE' defaults to next runnable plugin.
;; `ahs-set-idle-interval'
;; Set wait until highlighting symbol when emacs is idle.
;; `ahs-display-stat'
;; Display current status.
;; `ahs-highlight-now'
;; Highlight NOW!!
;; `ahs-goto-web'
;; Go to official? web site.
;; `ahs-edit-mode'
;; Turn on edit mode. With a prefix argument, current plugin change to `whole buffer' temporary.
;; `auto-highlight-symbol-mode'
;; Toggle Auto Highlight Symbol Mode
;;
;;; Customizable Options:
;;
;; Below are customizable option list:
;;
;; `ahs-modes'
;; Major modes `auto-highlight-symbol-mode' can run on.
;; `ahs-suppress-log'
;; *Non-nil means suppress log message.
;; `ahs-log-echo-area-only'
;; *Non-nil means log doesn't display the `*Messages*' buffer.
;; `ahs-decorate-log'
;; *Non-nil means decorate logs.
;; `ahs-default-range'
;; Default Plugin.
;; `ahs-edit-mode-lighter-pair'
;; Decorate mode line lighter in edit mode.
;; `ahs-select-invisible'
;; Behavior when selected symbol in hidden text.
;; `auto-highlight-symbol-mode-hook'
;; Hook for `auto-highlight-symbol-mode'.
;; `ahs-edit-mode-on-hook'
;; Normal hook for run when entering edit mode.
;; `ahs-edit-mode-off-hook'
;; Normal hook for run when go out edit mode.
;; `ahs-idle-interval'
;; Number of seconds to wait before highlighting symbol.
;; `ahs-case-fold-search'
;; *Non-nil means symbol search ignores case.
;; `ahs-include'
;; Variable for start highlighting.
;; `ahs-exclude'
;; Variable for inhibit highlighting.
;; `ahs-face-check-include-overlay'
;; *Non-nil means face checks include overlay face.
;; `ahs-inhibit-face-list'
;; Face list for inhibit highlighting.
;; `ahs-definition-face-list'
;; Face list for higilight definition.
;; `ahs-plugin-bod-modes'
;; Major modes `beginning of defun' plugin can run on.
;; `ahs-plugin-bod-function'
;; Function used in `beginning of defun' plugin.
;;
;; Happy Coding !!
;;
;;; SCM Log
;;
;; $Revision: 243:6aa59061b1df tip $
;; $Commiter: Mitso Saito <arch320@NOSPAM.gmail.com> $
;; $LastModified: Sun, 21 Nov 2010 14:42:11 +0900 $
;;
;; $Lastlog: font lock again $
;;
;;; (@* "Changelog" )
;;
;; v1.54 beta
;; Bug fix release
;; ** fix overlay violation problem in edit mode(backward) - !incomplete!
;; fix font-lock problem
;; fix built-in plugin
;; add onekey edit
;; remove ahs-invisible-face-list
;; remove obsoleted alias
;; minor bug fix
;;
;; v1.53 2010-11-03 22:17 +0900
;; improve invisible overlay's handling
;; new plugin property `face' available
;; add ahs-back-to-start
;; minor bug fix
;;
;; v1.52 2010-10-31 14:46 +0900
;; skip folding(select function only)
;;
;; v1.51 2010-10-30 09:17 +0900
;; plugin minor change
;;
;; v1.5 2010-10-30 02:31 +0900
;; add range plugin
;; ahs-whole-of-buffer is not working.
;; use ahs-default-range instead.
;; ahs-mode-lighter , ahs-wmode-lighter is not be used
;;
;; v1.03 2010-10-28 07:00 +0900
;; bug fix
;;
;; v1.02 2010-10-26 23:39 +0900
;; minor fix
;;
;; v1.01 2010-10-26 20:50 +0900
;; add edit mode hook for protect overlay
;;
;; v1.0 2010-10-26 16:33 +0900
;; first release
;;
;;; (@* "TODO" )
;;
;; fix overlay violation problem
;; fix poor doc
;; face check tweak
;; add onekey-***
;; refactor
;; cleanup
;; add comment
;;
;;; Code:
(eval-when-compile
;; Suppress bytecompiler error warning
(require 'easy-mmode)
(require 'cl)
(defvar dropdown-list-overlays nil))
(eval-and-compile
(defconst ahs-web "http://github.com/mitsuo-saito/auto-highlight-symbol-mode/")
;; Compatibility
(if (or (>= emacs-major-version 24)
(and (= emacs-major-version 23)
(>= emacs-minor-version 2)))
(defalias 'ahs-called-interactively-p 'called-interactively-p)
(defmacro ahs-called-interactively-p (&optional arg)
'(called-interactively-p))))
(defconst ahs-mode-vers
"$Id: auto-highlight-symbol.el,v 243:6aa59061b1df 2010-11-21 14:42 +0900 arch320 $"
"auto-highlight-symbol-mode version.")
;;
;; (@* "Custom variable" )
;;
(defgroup auto-highlight-symbol nil
"Automatic highlighting current symbol minor mode"
:group 'convenience
:link `(url-link :tag "Download latest version"
,(eval-when-compile (concat ahs-web "raw/master/auto-highlight-symbol.el")))
:link `(url-link :tag "Wiki" ,(eval-when-compile (concat ahs-web "wiki/")))
:link `(url-link :tag "Information" ,(eval-when-compile ahs-web)))
(defcustom ahs-modes
'( actionscript-mode
apache-mode
bat-generic-mode
c++-mode
c-mode
csharp-mode
css-mode
dos-mode
emacs-lisp-mode
html-mode
ini-generic-mode
java-mode
javascript-mode
js-mode
lisp-interaction-mode
lua-mode
latex-mode
makefile-mode
makefile-gmake-mode
markdown-mode
moccur-edit-mode
nxml-mode
nxhtml-mode
outline-mode
perl-mode cperl-mode
php-mode
python-mode
rc-generic-mode
reg-generic-mode
ruby-mode
sgml-mode
sh-mode
squirrel-mode
text-mode
tcl-mode
visual-basic-mode )
"Major modes `auto-highlight-symbol-mode' can run on."
:group 'auto-highlight-symbol
:type '(repeat symbol))
(defcustom ahs-suppress-log nil
"*Non-nil means suppress log message."
:group 'auto-highlight-symbol
:type 'boolean)
(defcustom ahs-log-echo-area-only t
"*Non-nil means log doesn't display the `*Messages*' buffer."
:group 'auto-highlight-symbol
:type 'boolean)
(defcustom ahs-decorate-log t
"*Non-nil means decorate logs."
:group 'auto-highlight-symbol
:type 'boolean)
(defcustom ahs-default-range 'ahs-range-display
"Default Plugin."
:group 'auto-highlight-symbol
:type '(choice (symbol :tag "Display area" ahs-range-display)
(symbol :tag "Whole buffer" ahs-range-whole-buffer)))
(defcustom ahs-edit-mode-lighter-pair '( "*" . "*" )
"Decorate mode line lighter in edit mode."
:group 'auto-highlight-symbol
:type '(choice (cons :tag "Asterisk" (string "*") (string "*"))
(cons :tag "Exclamation" (string "!") (string "!"))
(cons :tag "DANGEROUS" (string "DANGER->") (string "<-DANGER"))
(cons :tag "Silence!!" (string "") (string ""))))
(defcustom ahs-select-invisible 'immediate
"Behavior when selected symbol in hidden text.
When the value is
`immediate' Open hidden text. When leaving opened text, close it immediately.
`temporary' Open hidden text. When unhighlight or change plugin, close the opened texts except selected.
`open' Open hidden text permanently.
`skip' Select next visible symbol.
Affects only overlay(hidden text) has a property `isearch-open-invisible'."
:group 'auto-highlight-symbol
:type '(choice (const :tag "Open hidden text only when necessary" immediate)
(const :tag "Open hidden text temporary" temporary)
(const :tag "Open hidden text permanently" open)
(const :tag "Skip over all symbols in hidden text" skip)))
(defcustom auto-highlight-symbol-mode-hook nil
"Hook for `auto-highlight-symbol-mode'."
:group 'auto-highlight-symbol
:type 'hook)
(defcustom ahs-edit-mode-on-hook nil
"Normal hook for run when entering edit mode."
:group 'auto-highlight-symbol
:type 'hook)
(defcustom ahs-edit-mode-off-hook nil
"Normal hook for run when go out edit mode."
:group 'auto-highlight-symbol
:type 'hook)
(defvar ahs-idle-timer nil
"Timer used to highlighting symbol whenever emacs is idle.")
(defcustom ahs-idle-interval 1.0
"Number of seconds to wait before highlighting symbol."
:group 'auto-highlight-symbol
:type 'float
:set (lambda (symbol value)
(set-default symbol value)
(when (timerp ahs-idle-timer)
(cancel-timer ahs-idle-timer)
(setq ahs-idle-timer nil)
(ahs-start-timer))))
;;
;; (@* "Face" )
;;
(defface ahs-face
'((t (:foreground "GhostWhite" :background "LightYellow4")))
"Highlight the symbol using this face."
:group 'auto-highlight-symbol)
(defvar ahs-face 'ahs-face)
(defface ahs-definition-face
'((t (:foreground "moccasin" :background "CadetBlue" :underline t)))
"Highlight the symbol definition using this face."
:group 'auto-highlight-symbol)
(defvar ahs-definition-face 'ahs-definition-face)
(defface ahs-warning-face
'((t (:foreground "Red" :bold t)))
"Face for warning message."
:group 'auto-highlight-symbol)
(defvar ahs-warning-face 'ahs-warning-face)
(defface ahs-plugin-defalt-face
'((t (:foreground "Black" :background "Orange1")))
"Face used in `display' plugin."
:group 'auto-highlight-symbol)
(defvar ahs-plugin-defalt-face 'ahs-plugin-defalt-face)
(defface ahs-plugin-whole-buffer-face
'((t (:foreground "Black" :background "GreenYellow")))
"Face used in `whole buffer' plugin."
:group 'auto-highlight-symbol)
(defvar ahs-plugin-whole-buffer-face 'ahs-plugin-whole-buffer-face)
(defface ahs-plugin-bod-face
'((t (:foreground "Black" :background "DodgerBlue")))
"Face used in `beginning of defun' plugin."
:group 'auto-highlight-symbol)
(defvar ahs-plugin-bod-face 'ahs-plugin-bod-face)
(defface ahs-edit-mode-face
'((t (:foreground "White" :background "Coral3")))
"Face used in edit mode."
:group 'auto-highlight-symbol)
(defvar ahs-edit-mode-face 'ahs-edit-mode-face)
;;
;; (@* "Highlight Rules" )
;;
(defcustom ahs-case-fold-search t
"*Non-nil means symbol search ignores case."
:group 'auto-highlight-symbol
:type 'boolean)
(defconst ahs-default-symbol-regexp "^[0-9A-Za-z/_.,:;*+=&%|$#@!^?-]+$"
"Default symbol regular expression.")
(defcustom ahs-include ahs-default-symbol-regexp
"Variable for start highlighting.
This variable can be set in three different types.
1. `REGEXP' Regular expression.
If symbol matches regular expression `REGEXP' then start highlighting.
2. `my-include-function' Function predicate.
If return value is Non-nil then start highlighting.
Function is called with one argument, the symbol.
3. `alist'
'(
( emacs-lisp-mode . \"REGEXP\") ;; Regular expression in emacs-lisp-mode
( php-mode . my-include-function) ;; Function predicate in php-mode
)
If major mode not in list `ahs-default-symbol-regexp' will be used instead."
:group 'auto-highlight-symbol
:type '(choice (regexp :tag "Regexp" ahs-default-symbol-regexp)
(symbol :tag "Function" function)
(alist :tag "alist")))
(defcustom ahs-exclude nil
"Variable for inhibit highlighting.
This variable can be set in three different types.
1. `REGEXP' Regular expression.
If symbol matches regular expression `REGEXP' then inhibit highlighting.
2. `my-exclude-function' Function predicate.
If return value is Non-nil then inhibit highlighting.
Function is called with one argument, the symbol.
3. `alist'
'(
( ruby-mode . \"\\_<\\(end\\|def\\|class\\)\\_>\") ;; Regular expression in ruby-mode
( dos-mode . i-hate-wxxxxxs) ;; Function predicate in dos-mode
)
If major mode not in list all symbols can be highlighted."
:group 'auto-highlight-symbol
:type '(choice (const :tag "All symbols can be highlighted" nil)
(regexp :tag "Regexp" "")
(symbol :tag "Function" function)
(alist :tag "alist")))
(defcustom ahs-face-check-include-overlay nil
"*Non-nil means face checks include overlay face."
:group 'auto-highlight-symbol
:type 'boolean)
(defcustom ahs-inhibit-face-list
'( font-lock-comment-delimiter-face
font-lock-comment-face
font-lock-doc-face
font-lock-doc-string-face
font-lock-string-face )
"Face list for inhibit highlighting."
:group 'auto-highlight-symbol
:type '(repeat symbol))
(defcustom ahs-definition-face-list
'( font-lock-function-name-face
font-lock-variable-name-face )
"Face list for higilight definition."
:group 'auto-highlight-symbol
:type '(repeat symbol))
;;
;; (@* "Mode map" )
;;
(defvar auto-highlight-symbol-mode-map nil
"Keymap used in `auto-highlight-symbol-mode'.")
(if auto-highlight-symbol-mode-map
nil
(setq auto-highlight-symbol-mode-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "M-<left>" ) 'ahs-backward )
(define-key map (kbd "M-<right>" ) 'ahs-forward )
(define-key map (kbd "M-S-<left>" ) 'ahs-backward-definition )
(define-key map (kbd "M-S-<right>" ) 'ahs-forward-definition )
(define-key map (kbd "M--" ) 'ahs-back-to-start )
(define-key map (kbd "C-x C-'" ) 'ahs-change-range )
(define-key map (kbd "C-x C-a" ) 'ahs-edit-mode )
map)))
(defmacro ahs-onekey-edit (keys plugin-name &optional keep keymap)
"Macro of One Key Edit.
ahs-change-range -> ahs-edit-mode -> editing... ->
ahs-edit-mode(off) -> ahs-change-range... sigh...
You can do these operations at One Key!
`KEYS' Keyboard macro
`PLUGIN-NAME' Plugin name
`KEEP' Keep plugin after exiting edit mode.
`KEYMAP' Keymap If value is `nil' or not keymap
`auto-highlight-symbol-mode-map' will be used instead.
ex.(ahs-onekey-edit \"C-x C-y\" beginning-of-defun)"
`(define-key (if (keymapp ,keymap)
,keymap
auto-highlight-symbol-mode-map)
(read-kbd-macro ,keys)
(lambda()
(interactive)
(ahs-onekey-edit-function ',plugin-name ,keep))))
(defmacro ahs-onekey-change (keys plugin-name &optional keymap)
"Macro of change plugin.
`KEYS' Keyboard macro
`PLUGIN-NAME' Plugin name
`KEYMAP' Keymap If value is `nil' or not keymap
`auto-highlight-symbol-mode-map' will be used instead.
ex.(ahs-onekey-change \"C-x C-y\" display)"
`(define-key (if (keymapp ,keymap)
,keymap
auto-highlight-symbol-mode-map)
(read-kbd-macro ,keys)
',(intern (format "ahs-chrange-%s" plugin-name))))
;;
;; (@* "Internal variable" )
;;
(defvar auto-highlight-symbol-mode nil
"Dummy for suppress bytecompiler warning.")
(defvar ahs-inhibit-modification-commands
'( undo
redo ))
(defvar ahs-unhighlight-allowed-commands
'( universal-argument
universal-argument-other-key
ahs-back-to-start
ahs-backward
ahs-backward-definition
ahs-display-stat
ahs-edit-mode
ahs-forward
ahs-forward-definition ))
(defvar ahs-range-plugin-list nil
"List of installed plugin.")
(defvar ahs-search-work nil)
(defvar ahs-need-fontify nil)
;; Buffer local variable
(defvar ahs-current-overlay nil)
(defvar ahs-current-range nil)
(defvar ahs-edit-mode-enable nil)
(defvar ahs-highlighted nil)
(defvar ahs-inhibit-modification nil)
(defvar ahs-mode-line nil)
(defvar ahs-onekey-range-store nil)
(defvar ahs-opened-overlay-list nil)
(defvar ahs-overlay-list nil)
(defvar ahs-start-modification nil)
(defvar ahs-start-point nil)
(make-variable-buffer-local 'ahs-current-overlay )
(make-variable-buffer-local 'ahs-current-range )
(make-variable-buffer-local 'ahs-edit-mode-enable )
(make-variable-buffer-local 'ahs-highlighted )
(make-variable-buffer-local 'ahs-inhibit-modification )
(make-variable-buffer-local 'ahs-mode-line )
(make-variable-buffer-local 'ahs-onekey-range-store )
(make-variable-buffer-local 'ahs-opened-overlay-list )
(make-variable-buffer-local 'ahs-overlay-list )
(make-variable-buffer-local 'ahs-start-modification )
(make-variable-buffer-local 'ahs-start-point )
;;
;; (@* "Logging" )
;;
(defconst ahs-log-data
'(;; plugin
( plugin-badcondition . "Plugin `%s' incorrect major-mode or condition property is `nil'.")
( plugin-changed . "Current plugin has been changed to `%s'.")
( plugin-notfound . "Plugin `%s' doesn't exist.")
( plugin-notplugin . "Plugin `%s' wrong type plugin.")
( plugin-error-log1 . "---- auto-highlight-symbol-mode plugin error log ----")
( plugin-error-log2 . "%s in `%s' plugin `%s' property")
( plugin-error-log3 . "---- end")
( plugin-error-log4 . "Plugin error occurred. see *Messages*. Current plugin has been changed to `%s'.")
;; error
( error-ahs-disable . "`auto-highlight-symbol-mode' is not working at current buffer.")
( error-read-only . "Buffer is read-only: `%s'")
( error-scan-sexp . "%s: \"%s\" %s %s")
;; edit-mode
( turn-on-edit-mode . "Entering edit mode. %s")
( turn-off-edit-mode . "Exited edit mode.")
( onekey-turn-on-edit-mode . "Entering edit mode. Current plugin has been changed to `%s'. %s")
( onekey-turn-off-edit-mode . "Exited edit mode. Current plugin has been changed to `%s'.")
( onekey-no-symbol-at-point . "No symbol to highlight at point. Current plugin is `%s' now.")
;; misc
( no-symbol-at-point . "No symbol to highlight at point.")
( exist-elsewhere . "%s symbols exist elsewhere.")
( stat . "Current plugin `%s' matched %s displayed %s hidden %s before %s after %s.")
( self . "%s")
)
"Log data")
(defmacro ahs-decorate-if (body face)
`(if ahs-decorate-log
(propertize ,body 'face ,face)
,body))
(defmacro ahs-log-format (key)
`(cdr (assoc ,key ahs-log-data)))
(defun ahs-log (key &rest args)
"Display log."
(unless ahs-suppress-log
(let* ((data (ahs-log-format key))
(msg (apply 'format data args))
(message-log-max
(not ahs-log-echo-area-only)))
(message "%s" msg))) nil)
;;
;; (@* "Range plugin" )
;;
(defmacro ahs-regist-range-plugin (plugin-name body &optional docstring)
"Macro of regist range plugin.
\(fn PLUGIN-NAME BODY [DOCSTRING])"
(declare (indent 1))
`(progn
(defvar ,(intern (format "ahs-range-%s" plugin-name))
nil ,docstring)
(setq ,(intern (format "ahs-range-%s" plugin-name)) ,body)
(add-to-list 'ahs-range-plugin-list ',(intern (format "ahs-range-%s" plugin-name)))
(defun ,(intern (format "ahs-chrange-%s" plugin-name)) ()
(interactive)
(ahs-change-range ',(intern (format "ahs-range-%s" plugin-name)))
(when (ahs-called-interactively-p 'interactive)
(ahs-idle-function)))))
(defun ahs-decorated-current-plugin-name ()
"Return decorated current plugin's name."
(let ((name (ahs-current-plugin-prop 'name)))
(if ahs-decorate-log
(propertize name 'face (ahs-current-plugin-prop 'face))
name)))
(defun ahs-plugin-error-message (err prop range)
"Display plugin error message."
(let ((ahs-suppress-log)
(ahs-log-echo-area-only))
(ahs-log 'plugin-error-log1)
(ahs-log 'plugin-error-log2
err (ahs-get-plugin-prop 'name range) prop) ;; infinite loop? if 'name is badly function
(ahs-log 'plugin-error-log3)
(ahs-change-range-internal ahs-default-range)
(ahs-log 'plugin-error-log4
(ahs-decorated-current-plugin-name))))
(defun ahs-get-plugin-prop (prop range &optional arg)
"Return value of the `PROP' property of the `RANGE' plugin."
(let ((value (cdr (assoc prop (symbol-value range)))))
(cond
((equal value 'abort) 'abort) ;; abort
((equal prop 'face) ;; face
(if (facep value)
value
ahs-plugin-defalt-face))
((and (functionp value)
(equal prop 'major-mode)) value) ;; major-mode
((functionp value) ;; function
(condition-case err
(if arg
(funcall value arg)
(funcall value))
(error err
(ahs-plugin-error-message err prop range)
'abort)))
((null value) 'none) ;; property not found
((symbolp value) ;; symbol
(ignore-errors
(symbol-value value)))
(t value)))) ;; others
(defun ahs-current-plugin-prop (prop &optional arg)
"Return value of the `PROP' property of the current plugin."
(ahs-get-plugin-prop prop 'ahs-current-range arg))
(defun ahs-valid-plugin-p (range &optional plugin-name)
"Return Non-nil if `RANGE' plugin can run."
(setq plugin-name
(or plugin-name
(let ((name (format "%s" range)))
(if (string-match "ahs-range-" name)
(substring name (match-end 0) (length name))
name))))
(cond
((not (boundp range))
(ahs-log 'plugin-notfound plugin-name))
((not (memq range ahs-range-plugin-list))
(ahs-log 'plugin-notplugin plugin-name))
((not (memq range (ahs-runnable-plugins)))
(ahs-log 'plugin-badcondition
(ahs-get-plugin-prop 'name range)))
(t t)))
(defun ahs-runnable-plugins (&optional getnext)
"Return list of runnable plugins."
(loop with current = nil
with available = nil
for range in ahs-range-plugin-list
for plugin = (symbol-value range)
for mode = (ahs-get-plugin-prop 'major-mode range)
when (equal plugin ahs-current-range) do (setq current range)
when (or (equal 'none mode)
(and (listp mode)
(memq major-mode mode))
(eq major-mode mode))
when (ahs-get-plugin-prop 'condition range)
collect range into available
finally
return (if getnext
(or (cadr (memq current available))
(car available))
available)))
(defun ahs-change-range-internal (range)
"Current plugin change to `RANGE' plugin."
(setq ahs-current-range (symbol-value range))
(ahs-current-plugin-prop 'init))
;;
;; (@* "Built-in plugin" )
;;
(ahs-regist-range-plugin
display
'((name . "display area")
(lighter . "HS")
(face . ahs-plugin-defalt-face)
(start . window-start)
(end . window-end))
"Display area")
(ahs-regist-range-plugin
whole-buffer
'((name . "whole buffer")
(lighter . "HSA")
(face . ahs-plugin-whole-buffer-face)
(start . point-min)
(end . point-max))
"Whole buffer")
;; beginning-of-defun
(defvar ahs-plugin-bod-start nil)
(defvar ahs-plugin-bod-end nil)
(defcustom ahs-plugin-bod-modes
'( emacs-lisp-mode lisp-interaction-mode c++-mode c-mode )
"Major modes `beginning of defun' plugin can run on."
:group 'auto-highlight-symbol
:type '(repeat symbol))
(defcustom ahs-plugin-bod-function 'ahs-plugin-ahs-bod
"Function used in `beginning of defun' plugin."
:group 'auto-highlight-symbol
:type '(choice
(symbol :tag "Use built-in function" ahs-plugin-ahs-bod)
(symbol :tag "Use original narrow-to-defun" ahs-plugin-orignal-n2d)))
(defmacro ahs-plugin-bod-error (err)
`(if (= 4 (length ,err))
(apply 'ahs-log 'error-scan-sexp ,err)
(ahs-log 'self ,err)))
(defun ahs-plugin-orignal-n2d ()
"Original narrow-to-defun."
(save-restriction
(condition-case err
(progn
(narrow-to-defun)
(cons (point-min) (point-max)))
(error err (ahs-plugin-bod-error err)))))
(defun ahs-plugin-ahs-bod ()
"Another narrow-to-defun."
(condition-case err
(let ((opoint (point))
beg end)
;; Point in function
(beginning-of-defun)
(setq beg (point))
(end-of-defun)
(setq end (point))
(cond
;; Between point-min and function
((equal beg (point-min))
(goto-char opoint)
(beginning-of-defun -1)
(if (and (>= opoint beg)
(< opoint end))
;; From point-min to first function
(when (> end (point))
(setq end (point)))
;; Outside function
(setq beg end
end (point))))
;; Between function and function
((>= opoint end)
(setq beg end)
(beginning-of-defun -1)
(setq end (point))))
(cons beg end))
(error err (ahs-plugin-bod-error err))))
(ahs-regist-range-plugin
beginning-of-defun
'((name . "beginning of defun")
(lighter . "HSD")
(face . ahs-plugin-bod-face)
(major-mode . ahs-plugin-bod-modes)
(before-search . (lambda(symbol)
(save-excursion
(let ((pos (funcall ahs-plugin-bod-function)))
(if (not (consp pos))
'abort
(setq ahs-plugin-bod-start (car pos))
(setq ahs-plugin-bod-end (cdr pos)))))))
(start . ahs-plugin-bod-start)
(end . ahs-plugin-bod-end))
"beginning-of-defun to end-of-defun.")
;;
;; (@* "Timer" )
;;
(defun ahs-start-timer ()
"Start idle timer."
(unless ahs-idle-timer
(setq ahs-idle-timer
(run-with-idle-timer ahs-idle-interval t 'ahs-idle-function))))
(defun ahs-restart-timer ()
"Restart idle timer."
(when (timerp ahs-idle-timer)
(cancel-timer ahs-idle-timer)
(setq ahs-idle-timer nil)
(ahs-start-timer)))
;;
;; (@* "Idle" )
;;
(defun ahs-idle-function ()
"Idle function. Called by `ahs-idle-timer'."
(when (and auto-highlight-symbol-mode
(not ahs-highlighted))
(let ((hl (ahs-highlight-p)))
(when hl
(ahs-highlight (nth 0 hl)
(nth 1 hl)
(nth 2 hl))))))
(defmacro ahs-add-overlay-face (pos face)
`(if ahs-face-check-include-overlay
(append (ahs-get-overlay-face ,pos)
(if (listp ,face)
,face
(list ,face))) ,face))
(defun ahs-highlight-p ()
"Ruturn Non-nil if symbols can be highlighted."
(let* ((bounds (bounds-of-thing-at-point 'symbol))
(beg (car bounds))
(end (cdr bounds))
(face (when bounds
(get-text-property beg 'face)))
(symbol (when bounds
(buffer-substring beg end))))
(when (and symbol
(not (ahs-dropdown-list-p))
(not (ahs-face-p (ahs-add-overlay-face beg face) 'ahs-inhibit-face-list))
(not (ahs-symbol-p ahs-exclude symbol t))
(ahs-symbol-p ahs-include symbol))
(list symbol beg end))))
(defun ahs-symbol-p (pred symbol &optional nodefs)
"Return Non-nil if `SYMBOL' matches `PRED'."
(cond
;; Default include/no exclude
((null pred)
(unless nodefs
(let ((case-fold-search ahs-case-fold-search))
(string-match ahs-default-symbol-regexp symbol))))
;; REGEXP
((stringp pred)
(let ((case-fold-search ahs-case-fold-search))
(string-match pred symbol)))
;; Major mode
((listp pred)
(let ((new-pred (cdr (assoc major-mode pred))))
(ahs-symbol-p new-pred symbol nodefs)))
;; Function predicate
((functionp pred)
(funcall pred symbol))))
(defun ahs-dropdown-list-p ()
"Return Non-nil if dropdown-list is expanded."
(and (featurep 'dropdown-list)
dropdown-list-overlays))
(defun ahs-face-p (face faces)
"Return Non-nil if `FACE' in `FACES'."
(let ((facelist (symbol-value faces)))
(if (listp face)
(loop for x in face
when (memq x facelist)
return x)
(memq face facelist))))
(defun ahs-get-overlay-face (pos)
"Return list of all overlays face at `POS'."
(loop for overlay in (overlays-at pos)
for face = (overlay-get overlay 'face)
when face
when (symbolp face)
collect face))
;;
;; (@* "Highlight" )
;;
(defun ahs-prepare-highlight (symbol)
"Prepare for highlight."
(let ((before (ahs-current-plugin-prop 'before-search symbol))
(beg (ahs-current-plugin-prop 'start))
(end (ahs-current-plugin-prop 'end)))
(cond ((equal before 'abort) nil)