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specman-mode.el
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specman-mode.el
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;; @(#) specman-mode.el -- Mode for editing specman files
;; @(#) $Id: specman-mode.el,v 1.23 2013/05/23 07:03:00 pouyet Exp $
;; @(#) $Keywords: tools $
;; $KnownCompatibility: 23.1+, XEmacs21.4.15+ $
;; This file is not part of Emacs
;; Copyright (C) 2013 Cadence Design Systems, Inc.
;; Authors: Uri Maoz <[email protected]>
;; Michael McNamara <[email protected]>
;; Yaron Peri <[email protected]>
;; Maintainer:
;; Created: May 25 2013
;; LCD Archive Entry:
;; specman-mode|Michael McNamara|[email protected]|
;; Specman Major mode. auto indents, colorizes, code in the 'e language|
;; 25-May-2013|$Revision: 1.23 $|~/misc/specman-mode.el.Z|
;; COPYRIGHT NOTICE
;;
;; 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 2 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 GNU Emacs. If you did not, write to the Free Software Foundation,
;; Inc., 675 Mass Ave., Cambridge, MA 02139, USA.
;;
;; =============================================================================
;; SPECMAN MODE - A Major mode for writing in 'e'
;; =============================================================================
;;
;; ....................................................... &t-install ...
;; Put this file on your Emacs-Lisp load path, add following into your
;; ~/.emacs startup file
;;
;; (require 'specman-mode)
;;
;; Or add the following code to your .emacs:
;;
;; (autoload 'specman-mode "specman-mode" "Specman code editing mode" t)
;;
;; (setq auto-mode-alist
;; (remove-duplicates
;; (append (list
;; (cons "\\.e\\'" 'specman-mode)
;; (cons "\\.ecom\\'" 'specman-mode)
;; (cons "\\.erld\\'" 'specman-mode))
;; auto-mode-alist)))
;;
;;
;;; Commetary:
;;
;; specman-mode is a major mode for editing code written in the 'e' language
;;
;; Branch 'shr' created by Scott Roland <[email protected]>
;; GitHub home of 'shr' branch: https://github.com/hackonteur/specman-mode
(defconst specman-mode-version "Revision: 1.23 (shr 2)"
"Version of this Specman mode.")
(defun specman-version ()
"Inform caller of the version of this file"
(interactive)
(message (concat "Using specman-mode version "
(substring specman-mode-version 12 -3 )) )
)
(autoload 'specman-mode "specman-mode" "Specman code editing mode" t)
;; remove-duplicates below requires cl
(require 'cl)
(setq auto-mode-alist
(remove-duplicates
(append (list
(cons "\\.e\\'" 'specman-mode)
(cons "\\.ecom\\'" 'specman-mode)
(cons "\\.erld\\'" 'specman-mode))
auto-mode-alist)))
(add-hook 'specman-mode-hook
(lambda ()
(turn-on-font-lock)
(setq indent-tabs-mode nil)
(setq write-file-hooks nil)))
(add-hook 'speedbar-load-hook
(lambda ()
(speedbar-add-supported-extension ".e")))
(defmacro specman-safe (&rest body)
"Safely execute BODY, return nil if an error occurred."
`(condition-case nil
(progn ,@body)
(error nil)))
(if (fboundp 'eval-when-compile)
(eval-when-compile
(condition-case nil
(require 'cl) ;; FSF emacs's imenu needs cl, but doesn't (require 'cl)
(error nil))
(condition-case nil
(require 'imenu)
(error nil))
(condition-case nil
(unless (fboundp 'imenu-add-to-menubar)
(defun imenu-add-to-menubar (a) ))
(error nil))
(condition-case nil
(require 'reporter)
(error nil))
(condition-case nil
(if (boundp 'current-menubar)
nil ;; great
(defmacro set-buffer-menubar (&rest args) nil)
(defmacro add-submenu (&rest args) nil))
(error nil))
(condition-case nil
(require 'func-menu)
(error nil))
(condition-case nil
(unless (fboundp 'char=)
(defun char= (a b)
(= a b)))
(error nil))
(if (and (featurep 'custom) (fboundp 'custom-declare-variable))
nil ;; We've got what we needed
;; We have the old custom-library, hack around it!
(defmacro defgroup (&rest args) nil)
(defmacro customize (&rest args)
(message "Sorry, Customize is not available with this version of emacs"))
(defmacro defcustom (var value doc &rest args)
`(defvar ,var ,value , doc))
)
(if (fboundp 'defface)
nil ;; great!
(defmacro defface (var value doc &rest args)
`(make-face ,var))
)
(if (and (featurep 'custom) (fboundp 'customize-group))
nil ;; We've got what we needed
;; We have an intermediate custom-library, hack around it!
(defmacro customize-group (var &rest args)
`(customize ,var) )
)
(if (and (featurep 'custom) (fboundp 'custom-declare-variable))
nil ;; We've got what we needed
;; We have the old custom-library, hack around it!
(defmacro defgroup (&rest args) nil)
(defmacro customize (&rest args)
(message "Sorry, Customize is not available with this version of emacs"))
(defmacro defcustom (var value doc &rest args)
`(defvar ,var ,value , doc))
)
(if (and (featurep 'custom) (fboundp 'customize-group))
nil ;; We've got what we needed
;; We have an intermediate custom-library, hack around it!
(defmacro customize-group (var &rest args)
`(customize ,var) )
)
(condition-case nil
(require 'easymenu)
(error nil))))
;; If you install xemacs-devel, you will get a 10-20% speedup.
;; if not, you get this:
(unless (fboundp 'regexp-opt)
(defun regexp-opt (strings &optional paren)
(let ((open (if paren "\\(" ""))
(close (if paren "\\)" ""))
)
(concat open (mapconcat 'regexp-quote strings "\\|") close))))
;; TODO: this is also defined above, not sure why
(unless (fboundp 'char=)
(defun char= (a b)
(= a b)))
(if (not (boundp 'imenu-generic-expression))
(defvar imenu-generic-expression))
(unless (boundp 'font-lock-constant-face)
(make-face 'font-lock-constant-face)
(set-face-foreground 'font-lock-constant-face "CadetBlue"))
(if (< max-specpdl-size 3000)
(setq max-specpdl-size 3000))
;; =================================================
;; SPECMAN CUSTOMIZABLE VARS
;; =================================================
;;; - Customizable variables
(defgroup specman-mode nil
"Facilitates easy editing of Specman source text"
:group 'languages
)
(defcustom specman-basic-offset 4
"*Indentation of Specman statements with respect to containing block."
:group 'specman-mode
:type 'integer
)
(put 'specman-basic-offset 'safe-local-variable #'integerp)
(defconst specman-tab-width specman-basic-offset
"*Tab stop width"
)
(defcustom specman-continued-line-offset 2
"*Indentation of continued Specman statements with respect to first line of statement."
:group 'specman-mode
:type 'integer
)
(defcustom specman-auto-newline nil
"*ON (or non nil) means to automatically newline after inserting a semicolon."
:group 'specman-mode
:type 'boolean
)
(defcustom specman-auto-endcomments nil
"*ON (or non nil) means to automatically add a comment when closing a code block."
:group 'specman-mode
:type 'boolean
)
(defcustom specman-auto-endcomments-for-major-scopes-only t
"*ON (or non nil) means that end-comments are only applied to struct and method scopes."
:group 'specman-mode
:type 'boolean
)
(defcustom specman-auto-endcomments-kill-existing-comment t
"*ON (or non nil) means that redoing an end-comment replaces an existing end-comment."
:group 'specman-mode
:type 'boolean
)
(defcustom specman-max-line-length 80
"*The maximum number of characters that should be in a line."
:group 'specman-mode
:type 'integer
)
(defcustom specman-highlight-beyond-max-line-length t
"*ON (or non nil) means to highlight text beyond specman-max-line-length."
:group 'specman-mode
:type 'boolean
)
(defface specman-highlight-beyond-max-line-length-face
'((t (:underline t)))
"Face used to highlight text beyond the defined maximum line length."
:group 'specman-mode
)
(defcustom specman-highlight-punctuation t
"*ON (or non nil) means to highlight punctuation symbols."
:group 'specman-mode
:type 'boolean
)
(defface specman-punctuation-face
'((t (:foreground "SteelBlue")))
"Face used to highlight punctuation symbols - significant because they are mostly a single char."
:group 'specman-mode
)
(defcustom specman-compile-command "${SPECMAN_HOME}/bin/sn_compile.sh "
"String used to compile e files."
:group 'specman-mode
)
(defcustom specman-make-command "/usr/bin/make "
"String used to invoke make"
:group 'specman-mode
)
(defcustom specman-index-menu-active t
"*ON (or non nil) means that the 'Specman-Index' menu is active."
:group 'specman-mode
:type 'boolean
)
(defcustom specman-date-scientific-format nil
"*If non-nil, dates are written in scientific format (e.g. 1997/09/17),
in european format otherwise (e.g. 17.09.1997). The braindead american
format (e.g. 09/17/1997) is not supported."
:group 'specman-mode
:type 'boolean
)
(defcustom specman-company "ACME Company"
"*Default name of Company for specman header. If set will become buffer local. "
:group 'specman-mode
:type 'string
)
(defcustom specman-project "Roadrunner"
"*Default name of Project for specman header. If set will become buffer local."
:group 'specman-mode
:type 'string
)
;; =================================================
;; SPECMAN REGULAR EXPRESSIONS
;; =================================================
(defconst specman-ex-code-regexp "^\\(?:\\('>\\)\\|\\(<'\\)\\)"
"Regular Expression that matches ex-code tokens")
;; Matthew Lovell <[email protected]>
;; Up to one level of parentheses is allowed in the parameter
;; list to a method. The regex pattern for that portion if
;; from J. Friedl's "Mastering Regular Expressions"
(defconst specman-legal-name-regexp "\\(?:[a-zA-Z][a-zA-Z0-9_]*\\)"
"e legal name")
(defconst specman-method-definition-regexp
"\\(?:\\(?:private\\|package\\|protected\\)[ \t\n]+\\)?\\([A-Za-z0-9_]+\\)[ \t\n]*([^()]*\\(?:([^()]*)[^()]*\\)*)[^-/;]*?[ \t\n]+is[a-z \t\n]*{"
"Regexp that identifies methods (arg 1)")
(defconst specman-on-event-method-definition-regexp
"\\(on[ \t\n]+[A-Za-z0-9_]+\\)[ \t\n]*{"
"Regexp that identifies on-event methods (arg 1)")
(defconst specman-class-definition-regexp
(concat
"\\("
"\\(?:\\(?:package[ \t\n]*\\)?struct[ \t\n]+[A-Za-z0-9_]+\\)"
"\\|"
"\\(?:extend[ \t\n]+[^{]+\\)"
"\\|"
"\\(?:\\(?:package[ \t\n]*\\)?unit[ \t\n]+[A-Za-z0-9_]+\\)"
"\\)")
"Regexp that identifies major class scopes (arg 1)")
(defconst specman-when-subtype-definition-regexp
"\\(when[ \t\n]+[^{]+\\)"
"Regexp that identifies when subtypes (arg 1)")
(defconst specman-define-regexp
"\\(define[ \t]*<[^>]+>\\)"
"Regexp that identifies define scopes (arg 1)")
(defconst specman-macro-and-define-regexp
"\\(\\(?:#?define\\|#ifn?def\\|#else\\)[ \t\n]+[^ \t\n]+\\)"
"Regexp that identifies macro and define scopes (arg 1)")
(defconst specman-top-level-container-definition-regexp
(concat
"\\("
"\\(?:\\(?:package[ \t\n]*\\)?struct[ \t\n]+[A-Za-z0-9_]+\\)"
"\\|"
"\\(?:extend[ \t\n]+[^{]+\\)"
"\\|"
"\\(?:\\(?:package[ \t\n]*\\)?unit[ \t\n]+[A-Za-z0-9_]+\\)"
"\\|"
"\\(?:\\(?:#?define\\|#ifn?def\\|#else\\)[ \t\n]+[^ \t\n]+\\)"
"\\)")
"Regexp that identifies all specman container scopes (arg 1)")
(defconst specman-container-scope-definition-regexp
(concat
"\\("
"\\(?:\\(?:package[ \t\n]*\\)?struct[ \t\n]+[A-Za-z0-9_]+\\)"
"\\|"
"\\(?:extend[ \t\n]+[^{]+\\)"
"\\|"
"\\(?:\\(?:package[ \t\n]*\\)?unit[ \t\n]+[A-Za-z0-9_]+\\)"
"\\|"
"\\(?:\\(?:#?define\\|#ifn?def\\|#else\\)[ \t\n]+[^ \t\n]+\\)"
"\\|"
"\\(?:when[ \t\n]+[^{]+\\)"
"\\)")
"Regexp that identifies all specman container scopes (arg 1)")
(defconst specman-field-definition-regexp
"\\(?:\\(?:private\\|package\\|protected\\)[ \t\n]+\\)?\\([A-Za-z0-9_]+\\)[ \t\n]*:[ \t\n]*\\(?:\\*?[A-Za-z0-9_]+\\|\\[[^\\[]*\\]\\)"
"Regexp that identifies field definitions (arg 1)")
(defconst specman-variable-definition-regexp
"var[ \t\n]+\\([A-Za-z0-9_]+\\)[ \t\n]*:=?[ \t\n]*[{*+-]?[ \t\n]*\\([A-Za-z0-9_]+\\)"
"Regexp that identifies variable definitions (arg 1)")
(defconst specman-event-definition-regexp
"\\(?:\\(?:private\\|package\\|protected\\)[ \t\n]+\\)?event[ \t\n]+\\([A-Za-z0-9_]+\\)"
"Regexp that identifies event definitions (arg 1)")
(defconst specman-type-definition-regexp
"\\(?:package[ \t\n]*\\)?\\(?:method_\\)?type[ \t\n]+\\([A-Za-z0-9_]+\\)[ \t\n]*:[ \t\n]*\\["
"Regexp that identifies type definitions (arg 1)")
(defconst specman-cover-definition-regexp
"cover[ \t\n]+\\([A-Za-z0-9_]+\\)[ \t\n]+is"
"Regexp that identifies cover definitions (arg 1)")
(eval-and-compile
(defconst specman-symbol-begin-regexp
"\\<"
"Regexp that identifies the beginning of a symbol")
(defconst specman-symbol-end-regexp
"\\>"
"Regexp that identifies the end of a symbol"))
(defconst specman-number-regexp
(concat
"\\("
;; this is ugly, but the only way I could find to count + and - as
;; number symbols but maintaining that numbers have to come after
;; a symbol beginning
"\\(?:"
"[+-]"
"\\|"
specman-symbol-begin-regexp
"\\)"
"\\(?:"
"[0-9]+"
"\\|"
"0b[01]+"
"\\|"
"0o[0-7]+"
"\\|"
"0[xh][0-9a-fA-F]+"
"\\)"
"[kKmM]?"
"\\)"
specman-symbol-end-regexp)
"Regexp that identifies numbers (arg1)")
(defconst specman-method-definition-regexp-full
(concat "^[ \t]*" specman-method-definition-regexp))
(defconst specman-on-event-method-definition-regexp-full
(concat "^[ \t]*" specman-on-event-method-definition-regexp))
(defconst specman-class-definition-regexp-full
(concat "^[ \t]*" specman-class-definition-regexp))
(defconst specman-when-subtype-definition-regexp-full
(concat "^[ \t]*" specman-when-subtype-definition-regexp))
(defconst specman-define-regexp-full
(concat "^[ \t]*" specman-define-regexp))
(defconst specman-macro-and-define-regexp-full
(concat "^[ \t]*" specman-macro-and-define-regexp))
(defconst specman-container-scope-definition-regexp-full
(concat "^[ \t]*" specman-container-scope-definition-regexp))
(defconst specman-field-definition-regexp-full
(concat "^[ \t]*" specman-field-definition-regexp))
(defconst specman-variable-definition-regexp-full
(concat "^[ \t]*" specman-variable-definition-regexp))
(defconst specman-event-definition-regexp-full
(concat "^[ \t]*" specman-event-definition-regexp))
(defconst specman-type-definition-regexp-full
(concat "^[ \t]*" specman-type-definition-regexp))
(defconst specman-cover-definition-regexp-full
(concat "^[ \t]*" specman-cover-definition-regexp))
;; =================================================
;; SPECMAN SEARCHES AND QUERIES
;; =================================================
(defsubst specman-re-search-forward (REGEXP BOUND NOERROR &optional within-code-region)
"Like re-search-forward, but skips over matches in comments or strings"
(let ((start-pos
(point))
(full-regexp
(concat
"\\(//\\|--\\)\\|\\(^'>\\)\\|\\(\"\\)\\|\\(/\\*\\)\\|\\("
REGEXP
"\\)"))
)
(unless within-code-region
(specman-skip-forward-comment-or-string))
(store-match-data '(nil nil))
(while (and (if BOUND
(<= (point) BOUND)
t)
(re-search-forward full-regexp BOUND NOERROR)
(cond
(;; e line comment
(match-beginning 1)
(progn
(forward-line 1)
t)
)
(;; ex-code region
(match-beginning 2)
(progn
(re-search-forward "^<'" BOUND 'move)
t)
)
(;; string
(match-beginning 3)
(progn
;; to also consider the next character, for ""
(goto-char (match-beginning 3))
(re-search-forward "\\(?:[^\\]\\|[\\][\\]\\)\"" BOUND 'move)
t)
)
(;; c multi-line comment
(match-beginning 4)
(progn
(re-search-forward "\\*/" BOUND 'move)
t)
)
(;; the regexp
(match-beginning 5)
(progn
(goto-char (match-beginning 5))
(looking-at REGEXP) ;; to reset match-data
nil)
)
)
(progn
(store-match-data '(nil nil))
(if BOUND
(< (point) BOUND)
t))
))
(goto-char (if (match-end 0)
(match-end 0)
start-pos))
(match-end 0)))
(defsubst specman-re-search-backward (REGEXP BOUND NOERROR &optional within-code-region)
"Like re-search-backward, but skips over matches in comments or strings"
(let ((start-pos
(point))
(full-regexp
(concat
"\\(^<'\\)\\|\\(\"\\)\\|\\(\\*/\\)\\|\\("
REGEXP
"\\)"))
)
(unless within-code-region
(specman-skip-backward-comment-or-string))
(store-match-data '(nil nil))
(while (and (if BOUND
(>= (point) BOUND)
t)
(re-search-backward full-regexp BOUND NOERROR)
(cond
(;; ex-code region
(match-beginning 1)
(progn
(re-search-backward "^'>" BOUND 'move)
t)
)
(;; string
(match-beginning 2)
(progn
;; NOTE: this approach is more elegant, but slower than the code below
;;(if (specman-within-string-p)
;; (re-search-backward "[^\\]\"" BOUND 'move)
;; (re-search-backward "//\\|--" (specman-beg-of-line-pos) 'move))
(when (save-match-data
(back-to-indentation)
(re-search-forward "\\(//\\|--\\)\\|\\([^\\]\"\\)" (match-beginning 2) 'move)
(if (match-beginning 1) ;; a comment and not a string
(progn
(goto-char (match-beginning 1)) ;; go to the comment beginning
nil) ;; and fail, staying there
t))
(goto-char (match-beginning 2)) ;; return to the string
(when ;; and find the string opener
(re-search-backward "\\(?:[^\\]\\|[\\][\\]\\)\\(\"\\)" BOUND 'move)
(goto-char (match-beginning 1))))
t)
)
(;; c multi-line comment
(match-beginning 3)
(progn
(re-search-backward "/\\*" BOUND 'move)
t)
)
(;; the regexp
(match-beginning 4)
(let ((failed-match nil)
)
(goto-char (match-beginning 4))
(looking-at REGEXP) ;; to reset match-data
(save-match-data
;; if a comment is not found then point is left on the
;; beginning of the line but the goto-char below fixes this.
;; note: the while checks that the comment prefix is not in a string
(while (and (re-search-backward "//\\|--" (specman-beg-of-line-pos) 'move)
(if (specman-within-string-p)
t
(progn
(setq failed-match t)
nil)))))
failed-match
)
)
)
(progn
(store-match-data '(nil nil))
(if BOUND
(> (point) BOUND)
t))
))
(goto-char (if (match-beginning 0)
(match-beginning 0)
start-pos))
(match-beginning 0)))
(defsubst specman-beg-of-line-pos ()
(save-excursion
(beginning-of-line)
(point)))
(defsubst specman-end-of-line-pos ()
(save-excursion
(end-of-line)
(point)))
(defsubst specman-within-comment-p ()
(or (specman-within-line-comment-p)
(specman-within-region-comment-p))
)
(defsubst specman-empty-line-p ()
(looking-at "^[ \t]*$"))
(defun specman-within-string-p ()
(save-excursion
(nth 3 (parse-partial-sexp (point-min) (point)))))
(defsubst specman-line-within-string-p ()
(save-excursion
(beginning-of-line)
(specman-within-string-p)))
(defsubst specman-prepared-buffer-substring (beg end)
"Remove extra spaces and new-lines from strings."
(save-match-data
(if (eq specman-emacs-kind 'emacs)
(replace-regexp-in-string "[ \t\n]+"
" "
(replace-regexp-in-string "^[ \t\n]+\\|[ \t\n]+$"
""
(buffer-substring beg
end)))
(replace-in-string (replace-in-string (buffer-substring beg
end)
"^[ \t\n]+\\|[ \t\n]+$"
"")
"[ \t\n]+"
" "))))
;; =================================================
;; SPECMAN SCOPE QUERIES
;; =================================================
(defvar global-scope-index nil
"Used as a global reference for cached refs to scopes for performance.
Initialized for performace intensive operations without user interaction
(e.g. region indentation) and must be cleared afterwards.")
(make-variable-buffer-local 'global-scope-index)
(defstruct scope-descriptor paren match parent paren-parent)
(defun specman-create-scope-index ()
"Create a list of scope descriptors, each of which is a list of 3 members:
scope, matching-scope and parent-scope-opener"
(save-excursion
(save-match-data
(let ((scope-index
nil
)
(scope-stack
nil
)
(paren-stack
nil
)
(buffer-end
(point-max)
)
(top-scope-opener
(point-min-marker)
)
(end-scope-closer
(point-max-marker)
)
(search-regexp
(concat "\\("
"{\\|(" "\\)\\|\\("
"}\\|)" "\\)\\|\\("
"//\\|--" "\\)\\|\\("
"^'>" "\\)\\|\\("
"\"" "\\)\\|\\("
"/\\*" "\\)")
)
)
(goto-char (point-min))
;; for completeness - have a top pseudo-scope for the whole file
(set-marker-insertion-type top-scope-opener t)
(set-marker-insertion-type end-scope-closer t)
(push (cons top-scope-opener
(make-scope-descriptor
:paren top-scope-opener
:match end-scope-closer
:parent top-scope-opener
:paren-parent nil))
scope-index)
(when (re-search-forward "^<'" buffer-end t)
(while (and (< (point) buffer-end)
(re-search-forward search-regexp buffer-end 'move))
(cond
;; new scope
((match-beginning 1)
(save-excursion
(goto-char (match-beginning 1))
(let* ((point-marker
(point-marker)
)
(is-scope
(looking-at "{")
)
(parent
(if scope-stack
(scope-descriptor-paren (car scope-stack))
top-scope-opener)
)
(paren-parent
(if paren-stack
(scope-descriptor-paren (car paren-stack))
nil)
)
(point-descriptor
(make-scope-descriptor
:paren point-marker
:match end-scope-closer ;; place holder until the closer is found
:parent parent
:paren-parent paren-parent)
)
)
(set-marker-insertion-type point-marker t)
(push (cons point-marker
point-descriptor)
scope-index)
(if is-scope
(push point-descriptor scope-stack)
(push point-descriptor paren-stack))))
)
;; close scope
((match-beginning 2)
(save-excursion
(goto-char (match-beginning 2))
(let* ((point-marker
(point-marker)
)
(is-scope
(looking-at "}")
)
(has-match
(if is-scope
scope-stack
paren-stack)
)
(match
(when has-match
(if is-scope
(pop scope-stack)
(pop paren-stack)))
)
(parent
(if scope-stack
(scope-descriptor-paren (car scope-stack))
top-scope-opener)
)
(paren-parent
(if paren-stack
(scope-descriptor-paren (car paren-stack))
nil)
)
)
(set-marker-insertion-type point-marker t)
(if has-match
(let ((point-descriptor
(make-scope-descriptor
:paren point-marker
:match (scope-descriptor-paren match)
:parent parent
:paren-parent paren-parent)
)
)
(setf (scope-descriptor-match match) point-marker)
(push (cons point-marker
point-descriptor)
scope-index)
)
;; currently no error checking for unmatched scopes - here for closing scope
(progn
(push (cons point-marker
(make-scope-descriptor
:paren point-marker
:match top-scope-opener
:parent parent
:paren-parent paren-parent))
scope-index))
)
;; TODO: clear any dangling open parens which aren't closed within the
;; scope being closed now. nice idea, maybe should be explored more,
;; but doesn't work for now.
;; (when match
;; (let ((close-to-point
;; (scope-descriptor-paren match)
;; )
;; (stack-to-clear
;; (if is-scope
;; paren-stack
;; scope-stack)
;; )
;; (continue
;; t
;; )
;; )
;; (while (and continue
;; stack-to-clear)
;; (if (< close-to-point
;; (scope-descriptor-paren (car stack-to-clear)))
;; (pop stack-to-clear)
;; (setq continue nil)))
;; ))
))
)
;; comment
((match-beginning 3)
(forward-line 1)
)
;; end e-code region
((match-beginning 4)
(re-search-forward "^<'" buffer-end 'move)
)
;; string
((match-beginning 5)
;; to also consider the next character, for ""
(goto-char (match-beginning 0))
(re-search-forward "\\(?:[^\\]\\|[\\][\\]\\)\"" buffer-end 'move)
)
;; c multi-line comment
((match-beginning 6)
(re-search-forward "\\*/" buffer-end 'move)
)
)
)
;; currently no error checking for unmatched scopes - here for opening scope
)
;; for aesthetic reasons - the list is arranged as a stack, so it is backward
(reverse scope-index)
))))
(defun specman-clear-scope-descriptor-and-key (key value)
"Clear a scope index entry. Intended for use with maphash."
(let ((opener
(scope-descriptor-paren value))
(closer
(scope-descriptor-match value))
(parent
(scope-descriptor-parent value))
)
;; some scope markers can be nil
(when key
(set-marker key nil))
(when opener
(set-marker opener nil))
(when closer
(set-marker closer nil))
(when parent
(set-marker parent nil))))
(defun specman-clear-scope-index (scope-index)
"Clear a scope index by setting all markers to nil, so they no longer
have an updating cost and the index itself to nil."
(while scope-index
(specman-clear-scope-descriptor-and-key (caar scope-index)
(cdar scope-index))
(setq scope-index
(cdr scope-index))))
(defun specman-format-scope-descriptor-and-key (key value)
"format a scope index entry. Intended for use with maphash."
(format "%d => <%d %d> %d^\n"
(marker-position key)
(marker-position (scope-descriptor-paren value))
(marker-position (scope-descriptor-match value))
(marker-position (scope-descriptor-parent value))))
(defun specman-print-scope-index (scope-index)
"Print a scope index."
(if scope-index
(while scope-index
(specman-format-scope-descriptor-and-key (caar scope-index)
(cdar scope-index))
(setq scope-index
(cdr scope-index)))
(message "Trying to print an empty scope-index.")))
(defun specman-scope-index-up-list (scope-index &optional within-code-region)
(let ((result
nil)
)
(when (specman-re-search-backward "\\((\\)\\|\\()\\|{\\|}\\)"
nil
t
within-code-region)
;; at match-beginning 1 we're done, otherwise:
(if (match-beginning 2)
(let* ((point-marker
(point-marker))
(scope-descriptor
(assoc point-marker
scope-index))
(parent-opener
(when scope-descriptor
(scope-descriptor-paren-parent (cdr scope-descriptor))))
)
(set-marker point-marker nil)
(when parent-opener
(setq result (marker-position parent-opener))))
(setq result (point))
))
(when result
(goto-char result))
result))
(defun specman-scope-index-up-scope (scope-index &optional within-code-region)
(if (specman-re-search-backward "\\({\\)\\|\\(}\\|(\\|)\\)"
nil