Nolan,
Here is an improved unicon.el I have been using. Maybe there is something in here you
can merge into to yours.
Enjoy,
Michael Meehan
[EMAIL PROTECTED]
;;; unicon.el --- mode for editing Unicon code
;; Copyright (C) 1989 Free Software Foundation, Inc.
;; Author: Mark Cockrum, Computer Science Dept.
;; Western Washington University <[EMAIL PROTECTED]
;;
;; Based on work by :
;; Robert Parlett <[EMAIL PROTECTED]>
;; Chris Smith <[EMAIL PROTECTED]>
;; Created: 03-Jun-2003
;; Keywords: languages
;; This file is part of XEmacs.
;; XEmacs 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, or (at your option)
;; any later version.
;; XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free
;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
;; 02111-1307, USA.
;;; Synched up with: FSF 19.34.
;;; Commentary:
;; A major mode for editing the Unicon programming language.
;**********************************************************************************
; This defines the abbreviation table
;**********************************************************************************
(defvar unicon-mode-abbrev-table nil
"Abbrev table in use in Unicon-mode buffers.")
(define-abbrev-table 'unicon-mode-abbrev-table ())
;**********************************************************************************
; This defines key keyboard map
;**********************************************************************************
(defvar unicon-mode-map ()
"Keymap used in Unicon mode.")
(if unicon-mode-map
()
(setq unicon-mode-map (make-sparse-keymap))
(define-key unicon-mode-map "\r" 'electric-unicon-terminate-line)
(define-key unicon-mode-map "{" 'electric-unicon-brace)
(define-key unicon-mode-map "}" 'electric-unicon-brace)
(define-key unicon-mode-map "\e\C-h" 'mark-unicon-function)
(define-key unicon-mode-map "\e\C-a" 'beginning-of-unicon-defun)
(define-key unicon-mode-map "\e\C-e" 'end-of-unicon-defun)
(define-key unicon-mode-map "\e\C-q" 'indent-unicon-exp)
(define-key unicon-mode-map "\e\C-n" 'unicon-next-template-point)
(define-key unicon-mode-map "\177" 'backward-delete-char-untabify)
(define-key unicon-mode-map "\t" 'unicon-indent-command))
;**********************************************************************************
; This defines the syntax table
;**********************************************************************************
(defvar unicon-mode-syntax-table nil
"Syntax table in use in Unicon-mode buffers.")
(if unicon-mode-syntax-table
()
(setq unicon-mode-syntax-table (make-syntax-table))
(modify-syntax-entry ?\\ "\\" unicon-mode-syntax-table)
(modify-syntax-entry ?# "<" unicon-mode-syntax-table)
(modify-syntax-entry ?\n ">" unicon-mode-syntax-table)
(modify-syntax-entry ?$ "." unicon-mode-syntax-table)
(modify-syntax-entry ?/ "." unicon-mode-syntax-table)
(modify-syntax-entry ?* "." unicon-mode-syntax-table)
(modify-syntax-entry ?+ "." unicon-mode-syntax-table)
(modify-syntax-entry ?- "." unicon-mode-syntax-table)
(modify-syntax-entry ?= "." unicon-mode-syntax-table)
(modify-syntax-entry ?% "." unicon-mode-syntax-table)
(modify-syntax-entry ?< "." unicon-mode-syntax-table)
(modify-syntax-entry ?> "." unicon-mode-syntax-table)
(modify-syntax-entry ?& "." unicon-mode-syntax-table)
(modify-syntax-entry ?| "." unicon-mode-syntax-table)
(modify-syntax-entry ?\' "\"" unicon-mode-syntax-table))
;**********************************************************************************
; This defines the Unicon font lock settings
;*********************************************************************************
(defconst unicon-font-lock-keywords
'(
( "\\([ \t\n]break[ \t\n]\\)\\|\\([ \t\n]by[ \t\n]\\)\\|\\([ \t\n]case[
\t\n]\\)\\|\\([ \t\n]create[ \t\n]\\)\\|\\([ \t\n]default[ \t\n]\\)\\|\\([ \t\n]do[
\t\n]\\)\\|\\([ \t\n]else[ \t\n]\\)\\|\\(end[ \t\n]\\)\\|\\([ \t\n]every[
\t\n]\\)\\|\\([ \t\n]fail[ \t\n]\\)\\|\\([ \t\n]if[ \t\n]\\)\\|\\([ \t\n]import[
\t\n]\\)\\|\\([ \t\n]initially\\)\\|\\([ \t\n]invocable[ \t\n]\\)\\|\\([
\t\n]invocable all[ \t\n]\\)\\|\\([ \t\n]link[ \t\n]\\)\\|\\([ \t\n]method[
\t\n]\\)\\|\\([ \t\n]next[ \t\n]\\)\\|\\([ \t\n]not[ \t\n]\\)\\|\\([ \t\n]of[
\t\n]\\)\\|\\([ \t\n]package[ \t\n]\\)\\|\\(procedure[ \t\n]\\)\\|\\([ \t\n]record[
\t\n]\\)\\|\\([ \t\n]repeat[ \t\n]\\)\\|\\([ \t\n]return[ \t\n]\\)\\|\\([
\t\n]suspend[ \t\n]\\)\\|\\([ \t\n]then[ \t\n]\\)\\|\\([ \t\n]to[ \t\n]\\)\\|\\([
\t\n]until[ \t\n]\\)\\|\\([ \t\n]while[ \t\n]\\)\\|\\([ \t]&[a-z]+[ \t]\\)"
. font-lock-keyword-face )
( "\\([ \t\n]local[ \t\n]\\)\\|\\([ \t\n]global[ \t\n]\\)\\|\\([ \t\n]static[
\t\n]\\)\\|\\(class[ \t\n]\\)" . font-lock-type-face )
; ( "[a-z_][a-zA-Z0-9_]*" . font-lock-variable-name-face )
( "^\\$.*" . font-lock-variable-name-face )
))
;**********************************************************************************
; This defines the Unicon menu system
;**********************************************************************************
(defconst unicon-menu
'( ["Add To Project File "
(unicon-add-project-file (buffer-file-name)) :suffix (buffer-name) ]
["Add File To Project ..." unicon-add-project-file ]
["Set Executable File Name ..." unicon-set-executable-name ]
["Clear Project Settings" unicon-clear-project ]
"--:shadowEtchedIn"
["Compile Current Buffer Contents" unicon-compile-buffer ]
["Compile Entire Project" unicon-compile-project ]
["Make Executable" unicon-make-executable ]
["Set Complier Options ..." unicon-set-compiler-opts ]
"--:shadowEtchedIn"
[ "Insert While Loop" unicon-while-template ]
[ "Insert Until Loop" unicon-until-template ]
[ "Insert Repeat Loop" unicon-repeat-template ]
[ "Insert If Statement" unicon-if-template ]
[ "Insert If-Else Statement" unicon-ifelse-template ]
[ "Insert String Scanning Expr" unicon-strscan-template ]
"--:shadowEtchedIn"
[ "Insert Procedure Body" unicon-procedure-template ]
[ "Insert Class Body" unicon-class-template ]
[ "Insert Class Method Body" unicon-method-template ]
"--:shadowEtchedIn"
["Run Ivib Graphics Editor" unicon-start-ivib ]
"--:shadowDoubleEtchedIn"
"To see all Unicon commands type C-h m"
))
(defconst unicon-help-menu
'(
["Unicon Language Reference" (unicon-load-pdf "utr8.pdf") ]
["Unicon Graphics Reference" (unicon-load-pdf "utr5.pdf") ]
["Icon 9.3 Language Reference" (unicon-load-pdf "ipd278.pdf") ]
["Icon 9.3 Library Reference" (unicon-load-pdf "ipd279.pdf") ]
"--:shadowEtchedIn"
["Unicon Frequently Asked Questions" (unicon-load-web-page "unifaq.html" ) ]
["Icon Frequently Asked Questions" (unicon-load-web-page "iconfaq.html" ) ]
"--:shadowDoubleEtchedIn"
"For Unicon mode help type C-h m"
))
;**********************************************************************************
; This defines some unicon mode variables and their defaults
;**********************************************************************************
(defvar unicon-indent-use-only-spaces nil
"*Non-nil means use only spaces when indenting; otherwise use spaces and tabs.")
(defvar unicon-indent-level 4
"*Indentation of Unicon statements with respect to containing block.")
(defvar unicon-class-indent-level 4
"*Indentation of methods within classes.")
(defvar unicon-brace-imaginary-offset 0
"*Imagined indentation of a Unicon open brace that actually follows a statement.")
(defvar unicon-brace-offset 0
"*Extra indentation for braces, compared with other text in same context.")
(defvar unicon-continued-statement-offset 4
"*Extra indent for lines not starting new statements.")
(defvar unicon-continued-brace-offset 0
"*Extra indent for substatements that start with open-braces.
This is in addition to unicon-continued-statement-offset.")
(defvar unicon-auto-newline nil
"*Non-nil means automatically newline before and after braces
inserted in Unicon code.")
(defvar unicon-electric-newline nil
"*Non-nil means automatically indent current and new line whenever
return is pressed.")
(defvar unicon-tab-always-indent t
"*Non-nil means TAB in Unicon mode should always reindent the current line,
regardless of where in the line point is when the TAB command is used.")
(defvar unicon-project-files nil )
(defvar unicon-compiler-options " " )
(defvar unicon-executable-name nil )
(defvar unicon-pdf-reader nil )
(defvar unicon-web-browser nil )
(defvar unicon-docs-dir nil )
(defvar unicon-template-ring [] )
(defvar unicon-template-index 0)
;**********************************************************************************
; This defines the Unicon major mode and initializes it to a knowns state
;**********************************************************************************
;;;###autoload
(defun unicon-mode ()
"Major mode for editing Unicon code.
Expression and list commands understand all Unicon brackets.
Tab indents for Unicon code.
Paragraphs are separated by blank lines only.
Delete converts tabs to spaces as it moves back.
M-C-n Causes cursor to move to the next template point.
\\{unicon-mode-map}
Variables controlling indentation style:
unicon-tab-always-indent
Non-nil means TAB in Unicon mode should always reindent the current line,
regardless of where in the line point is when the TAB command is used.
unicon-auto-newline
Non-nil means automatically newline before and after braces
inserted in Unicon code.
unicon-indent-level
Indentation of Unicon statements within surrounding block.
The surrounding block's indentation is the indentation
of the line on which the open-brace appears.
unicon-continued-statement-offset
Extra indentation given to a substatement, such as the
then-clause of an if or body of a while.
unicon-continued-brace-offset
Extra indentation given to a brace that starts a substatement.
This is in addition to `unicon-continued-statement-offset'.
unicon-brace-offset
Extra indentation for line if it starts with an open brace.
unicon-brace-imaginary-offset
An open brace following other text is treated as if it were
this far to the right of the start of its line.
Turning on Unicon mode calls the value of the variable `unicon-mode-hook'
with no args, if that value is non-nil."
(interactive)
(kill-all-local-variables)
(use-local-map unicon-mode-map)
(setq major-mode 'unicon-mode)
(setq mode-name "Unicon")
(setq local-abbrev-table unicon-mode-abbrev-table)
(set-syntax-table unicon-mode-syntax-table)
(make-local-variable 'paragraph-start)
(setq paragraph-start (concat "$\\|" page-delimiter))
(make-local-variable 'paragraph-separate)
(setq paragraph-separate paragraph-start)
(make-local-variable 'indent-line-function)
(setq indent-line-function 'unicon-indent-line)
(make-local-variable 'require-final-newline)
(setq require-final-newline t)
(make-local-variable 'comment-start)
(setq comment-start "# ")
(make-local-variable 'comment-end)
(setq comment-end "")
(make-local-variable 'comment-column)
(setq comment-column 32)
(make-local-variable 'comment-start-skip)
(setq comment-start-skip "# *")
(make-local-variable 'comment-indent-function)
(setq comment-indent-function 'unicon-comment-indent)
(set-buffer-menubar current-menubar)
(add-submenu nil (cons "Unicon" unicon-menu ))
(add-submenu nil (cons "Unicon Help" unicon-help-menu ))
(setq mode-popup-menu (cons "Unicon Mode Menu" unicon-menu ))
(font-lock-mode)
(run-hooks 'unicon-mode-hook))
;**********************************************************************************
; This defines the Unicon Help menu functions
;**********************************************************************************
(defun unicon-load-web-page ( web-page )
(if (null unicon-web-browser)
(error "Unicon Error: unable to load web browser - please set unicon-web-browser
variable.")
(start-process "web-browser" nil unicon-web-browser
(concat "file://" unicon-docs-dir "/" web-page ))))
(defun unicon-load-pdf ( pdf )
(if (null unicon-pdf-reader)
(error "Unicon Error: unable to load pdf reader - please set unicon-pdf-reader
variable.")
(start-process "pdf-reader" nil unicon-pdf-reader
(concat unicon-docs-dir "/" pdf))))
;**********************************************************************************
; This defines the Unicon template functions
;**********************************************************************************
(defun unicon-push-template-mark ( )
(setq unicon-template-ring
(vconcat (vector (point-marker)) unicon-template-ring)))
(defun unicon-next-template-point ( )
"Go to next template point"
(interactive)
(if (equal unicon-template-ring [])
(error "Unicon Error: No template inserted.")
(let ((index unicon-template-index) (next-point))
(setq next-point
(aref unicon-template-ring (1- (- (length unicon-template-ring) index ))))
(setq unicon-template-index
(mod (+ unicon-template-index 1) (length unicon-template-ring)))
(goto-char next-point ))))
(defun unicon-method-template ( )
"Insert a procedure template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n")
(unicon-indent-command)
(insert "method ")
(unicon-indent-command)
(unicon-push-template-mark)
(insert " ( ")
(unicon-push-template-mark)
(insert " )\n" )
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\nend")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(push-mark)
(unicon-push-template-mark)
(unicon-next-template-point)
)
(defun unicon-procedure-template ( )
"Insert a procedure template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n")
(unicon-indent-command)
(insert "procedure ")
(unicon-indent-command)
(unicon-push-template-mark)
(insert " ( ")
(unicon-push-template-mark)
(insert " )\nlocal " )
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\n\t" )
(unicon-push-template-mark)
(insert "\nend\n")
(push-mark)
(unicon-push-template-mark)
(unicon-next-template-point)
)
(defun unicon-class-template ( )
"Insert a procedure template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n")
(unicon-indent-command)
(insert "class ")
(unicon-indent-command)
(unicon-push-template-mark)
(insert " ( ")
(unicon-push-template-mark)
(insert " )\n\t" )
(unicon-push-template-mark)
(insert "\n\tinitially( ")
(unicon-push-template-mark)
(insert " )\n\t" )
(unicon-push-template-mark)
(insert "\nend\n")
(push-mark)
(unicon-push-template-mark)
(unicon-next-template-point)
)
(defun unicon-while-template ( )
"Insert a while loop template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n" )
(unicon-indent-command)
(insert "while ")
(unicon-push-template-mark)
(insert " do {\n")
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\n}")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(push-mark)
(unicon-next-template-point)
)
(defun unicon-until-template ( )
"Insert a while loop template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n" )
(unicon-indent-command)
(insert "until ")
(unicon-push-template-mark)
(insert " do {\n")
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\n}")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(push-mark)
(unicon-next-template-point)
)
(defun unicon-repeat-template ( )
"Insert a while loop template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n" )
(unicon-indent-command)
(insert "repeat {\n")
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\n}")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(push-mark)
(unicon-next-template-point)
)
(defun unicon-if-template ( )
"Insert an if statement template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n" )
(unicon-indent-command)
(insert "if " )
(unicon-push-template-mark)
(insert " then {")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\n}")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(push-mark)
(unicon-next-template-point)
)
(defun unicon-ifelse-template ( )
"Insert an if statement template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n" )
(unicon-indent-command)
(insert "if " )
(unicon-push-template-mark)
(insert " then {")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\n}")
(unicon-indent-command)
(insert "\n else {")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\n}")
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(push-mark)
(unicon-next-template-point)
)
(defun unicon-strscan-template ( )
"Insert a string scanning expression template and set associated marks."
(interactive)
(setq unicon-template-ring [] )
(setq unicon-template-index 0)
(insert "\n ")
(unicon-indent-command)
(unicon-push-template-mark)
(insert " ? {" )
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(insert "\n}" )
(unicon-indent-command)
(insert "\n")
(unicon-indent-command)
(unicon-push-template-mark)
(push-mark)
(unicon-next-template-point)
)
;**********************************************************************************
; This defines the Unicon project and menu functions
;**********************************************************************************
(defun unicon-insert-nondup ( element list )
(cond
((null list) (list element))
((equal element (car list)) list)
(t (cons (car list) (unicon-insert-nondup element (cdr list))))))
(defun unicon-build-args (arg-list)
(cond
((null arg-list) nil)
(t (concat (car arg-list) " " (unicon-build-args (cdr arg-list))))))
(defun unicon-clear-project ( )
"Destroy's the current project settings"
(interactive)
(if (yes-or-no-p-dialog-box "Are you sure you want to clear the current project?" )
(progn
(setq unicon-project-files nil)
(setq unicon-executable-name nil)
(setq unicon-compiler-options " " ))))
(defun unicon-add-project-file ( file-name )
"Add a file to this unicon project."
(interactive "f")
(setq unicon-project-files
(unicon-insert-nondup (expand-file-name file-name) unicon-project-files)))
(defun unicon-compile-buffer ( )
"Compile the current buffer."
(interactive)
(compile (concat "unicon -c " unicon-compiler-options
(buffer-file-name))))
(defun unicon-compile-project ( )
"Compile the current buffer"
(interactive)
(if (null unicon-project-files)
(error "Unicon Error: Project does not contain any files" )
(compile (concat "unicon -c " unicon-compiler-options
(unicon-build-args unicon-project-files)))))
(defun unicon-set-executable-name ( name )
"Set the name of the executable file for this project."
(interactive "FEnter a file name for the executable: \n" )
(if (or (equal name nil) (equal (length name) 0))
(error "Unicon Error: Name provided is empty." )
(setq unicon-executable-name name )))
(defun unicon-set-compiler-opts ( options )
"Set the options passed the the unicon compiler whenever it is invoked."
(interactive "sEnter compiler options: \n" )
(if (or (equal options nil) (equal (length options) 0))
(error "Unicon Error: Options list provided is empty." )
(setq unicon-compiler-options (concat options " " ))))
(defun unicon-make-executable ( )
"Create an executable program using the project file list. If the project file list
is null, the current buffer is used."
(interactive)
(if (null unicon-executable-name)
(call-interactively 'unicon-set-executable-name))
(if (null unicon-project-files)
(compile (concat "unicon" unicon-compiler-options " -o " unicon-executable-name
" "
(buffer-file-name)))
(compile (concat "unicon" unicon-compiler-options " -o " unicon-executable-name " "
(unicon-build-args unicon-project-files)))))
(defun unicon-start-ivib ( )
"Start the ivib process."
(interactive)
(start-process "ivib" nil "ivib" ))
;(defun unicon-run-program ( )
; "Run the current project executable."
; (interactive)
; (if (null unicon-executable-name)
; (call-interactively 'unicon-set-executable-name))
; (start-process "*unicon*" (get-buffer-create "*unicon*") unicon-executable-name ))
;**********************************************************************************
; This defines the Unicon indentation functions set by the author
;**********************************************************************************
;; This is used by indent-for-comment to decide how much to
;; indent a comment in Unicon code based on its context.
(defun unicon-comment-indent ()
(if (looking-at "^#")
0
(save-excursion
(skip-chars-backward " \t")
(max (if (bolp) 0 (1+ (current-column)))
comment-column))))
(defun electric-unicon-brace (arg)
"Insert character and correct line's indentation."
(interactive "P")
(let (insertpos)
(if (and (not arg)
(eolp)
(or (save-excursion
(skip-chars-backward " \t")
(bolp))
(if unicon-auto-newline
(progn (unicon-indent-line) (newline) t)
nil)))
(progn
(insert last-command-char)
(unicon-indent-line)
(if unicon-auto-newline
(progn
(newline)
;; (newline) may have done auto-fill
(setq insertpos (- (point) 2))
(unicon-indent-line)))
(save-excursion
(if insertpos (goto-char (1+ insertpos)))
(delete-char -1))))
(if insertpos
(save-excursion
(goto-char insertpos)
(self-insert-command (prefix-numeric-value arg)))
(self-insert-command (prefix-numeric-value arg)))))
(defun unicon-indent-command (&optional whole-exp)
(interactive "P")
"Indent current line as Unicon code, or in some cases insert a tab character.
If `unicon-tab-always-indent' is non-nil (the default), always indent current
line. Otherwise, indent the current line only if point is at the left margin
or in the line's indentation; otherwise insert a tab.
A numeric argument, regardless of its value, means indent rigidly all the
lines of the expression starting after point so that this line becomes
properly indented. The relative indentation among the lines of the
expression are preserved."
(if whole-exp
;; If arg, always indent this line as Unicon
;; and shift remaining lines of expression the same amount.
(let ((shift-amt (unicon-indent-line))
beg end)
(save-excursion
(if unicon-tab-always-indent
(beginning-of-line))
(setq beg (point))
(forward-sexp 1)
(setq end (point))
(goto-char beg)
(forward-line 1)
(setq beg (point)))
(if (> end beg)
(indent-code-rigidly beg end shift-amt "#")))
(if (and (not unicon-tab-always-indent)
(save-excursion
(skip-chars-backward " \t")
(not (bolp))))
(insert-tab)
(unicon-indent-line))))
(defun unicon-indent-line ()
"Indent current line as Unicon code.
Return the amount the indentation changed by."
(let ((indent (calculate-unicon-indent nil))
beg shift-amt
(case-fold-search nil)
(pos (- (point-max) (point))))
(beginning-of-line)
(setq beg (point))
(cond ((eq indent nil)
(setq indent (current-indentation)))
((eq indent t)
(setq indent (calculate-unicon-indent-within-comment)))
((looking-at "[ \t]*#")
()) ;; rpp - was (setq indent 0))
(t
(skip-chars-forward " \t")
(if (listp indent) (setq indent (car indent)))
(cond ((and (looking-at "else\\b")
(not (looking-at "else\\s_")))
(setq indent (save-excursion
(unicon-backward-to-start-of-if)
(current-indentation))))
((and (looking-at "end\\b")
(not (looking-at "end\\s_")))
(setq indent unicon-end-indent-level))
((= (following-char) ?})
(setq indent (- indent unicon-indent-level)))
((= (following-char) ?{)
(setq indent (+ indent unicon-brace-offset))))))
(skip-chars-forward " \t")
(setq shift-amt (- indent (current-column)))
(if (zerop shift-amt)
(if (> (- (point-max) pos) (point))
(goto-char (- (point-max) pos)))
(delete-region beg (point))
(indent-to-spaces indent)
;; If initial point was within line's indentation,
;; position after the indentation. Else stay at same point in text.
(if (> (- (point-max) pos) (point))
(goto-char (- (point-max) pos))))
shift-amt))
(defun calculate-unicon-indent (&optional parse-start)
"Return appropriate indentation for current line as Unicon code.
In usual case returns an integer: the column to indent to.
Returns nil if line starts inside a string, t if in a comment."
(save-excursion
(beginning-of-line)
(let ((indent-point (point))
(case-fold-search nil)
(line-no (count-lines 1 (point)))
containing-sexp-line
state
containing-sexp
toplevel)
(if parse-start
(goto-char parse-start)
(setq toplevel (beginning-of-unicon-defun)))
(while (< (point) indent-point)
(setq parse-start (point))
(setq state (parse-partial-sexp (point) indent-point 0))
(setq containing-sexp (car (cdr state))))
(cond ((or (nth 3 state) (nth 4 state))
;; return nil or t if should not change this line
(nth 4 state))
((and containing-sexp
(/= (char-after containing-sexp) ?{))
;; line is expression, not statement:
(setq containing-sexp-line (count-lines 1 containing-sexp))
(if (= line-no containing-sexp-line)
(goto-char (1+ containing-sexp))
(progn
(forward-line -1)
(beginning-of-line)
(skip-chars-forward " \t")
)
)
(current-column)
)
(t
(if toplevel
;; Outside any procedures.
(progn (unicon-backward-to-noncomment (point-min))
(if (unicon-is-continuation-line)
unicon-continued-statement-offset unicon-extra-indent))
;; Statement level.
(if (null containing-sexp)
(progn (beginning-of-unicon-defun)
(setq containing-sexp (point))))
(goto-char indent-point)
;; Is it a continuation or a new statement?
;; Find previous non-comment character.
(unicon-backward-to-noncomment containing-sexp)
;; Now we get the answer.
(if (unicon-is-continuation-line)
;; This line is continuation of preceding line's statement;
;; indent unicon-continued-statement-offset more than the
;; first line of the statement.
(progn
(unicon-backward-to-start-of-continued-exp containing-sexp)
(+ unicon-continued-statement-offset (current-column)
(if (save-excursion (goto-char indent-point)
(skip-chars-forward " \t")
(eq (following-char) ?{))
unicon-continued-brace-offset 0)))
;; This line starts a new statement.
;; Position following last unclosed open.
(goto-char containing-sexp)
;; Is line first statement after an open-brace?
(or
;; If no, find that first statement and indent like it.
(save-excursion
(cond
((looking-at "procedure\\s \\|method\\s ")
(forward-sexp 3))
((looking-at "initially\\s *\\s(")
(forward-sexp 2))
((looking-at "initially")
(end-of-line))
(t (forward-char 1))
)
(while (progn (skip-chars-forward " \t\n")
(looking-at "#"))
;; Skip over comments following openbrace.
(forward-line 1))
;; The first following code counts
;; if it is before the line we want to indent.
(and (< (point) indent-point)
(current-column)))
;; If no previous statement,
;; indent it relative to line brace is on.
;; For open brace in column zero, don't let statement
;; start there too. If unicon-indent-level is zero,
;; use unicon-brace-offset + unicon-continued-statement-offset
;; instead.
;; For open-braces not the first thing in a line,
;; add in unicon-brace-imaginary-offset.
(+ (if (and (bolp) (zerop unicon-indent-level))
(+ unicon-brace-offset
unicon-continued-statement-offset)
unicon-indent-level)
;; Move back over whitespace before the openbrace.
;; If openbrace is not first nonwhite thing on the line,
;; add the unicon-brace-imaginary-offset.
(progn (skip-chars-backward " \t")
(if (bolp) 0 unicon-brace-imaginary-offset))
;; Get initial indentation of the line we are on.
(current-indentation))))))))))
;; List of words to check for as the last thing on a line.
;; If cdr is t, next line is a continuation of the same statement,
;; if cdr is nil, next line starts a new (possibly indented) statement.
(defconst unicon-resword-alist
'(("by" . t) ("case" . t) ("create") ("do") ("dynamic" . t) ("else")
("every" . t) ("if" . t) ("global" . t) ("initial" . t)
("link" . t) ("local" . t) ("of") ("record" . t) ("repeat" . t)
("static" . t) ("then") ("to" . t) ("until" . t) ("while" . t)))
(defun unicon-is-continuation-line ()
(let* ((ch (preceding-char))
(ch-syntax (char-syntax ch)))
(if (eq ch-syntax ?w)
(assoc (buffer-substring
(progn (forward-word -1) (point))
(progn (forward-word 1) (point)))
unicon-resword-alist)
(not (memq ch '(0 ?\; ?\} ?\{ ?\) ?\] ?\" ?\' ?\n))))))
(defun unicon-backward-to-noncomment (lim)
(let (opoint stop)
(while (not stop)
(skip-chars-backward " \t\n\f" lim)
(setq opoint (point))
(beginning-of-line)
;;; rpp
;;; fixed bug here, changed 5 to 4 (inside comment)
(if (and (nth 4 (parse-partial-sexp (point) opoint))
(< lim (point)))
(search-backward "#")
(setq stop t))
)
)
)
(defun unicon-backward-to-start-of-continued-exp (lim)
(if (memq (preceding-char) '(?\) ?\]))
(forward-sexp -1))
(beginning-of-line)
(skip-chars-forward " \t")
(cond
;; ((<= (point) lim) (goto-char (+ unicon-indent-level lim)))
((<= (point) lim) (goto-char (1+ lim)))
((not (unicon-is-continued-line)) 0)
((and (eq (char-syntax (following-char)) ?w)
(cdr
(assoc (buffer-substring (point)
(save-excursion (forward-word 1) (point)))
unicon-resword-alist))) 0)
(t (end-of-line 0) (unicon-backward-to-start-of-continued-exp lim))))
(defun unicon-is-continued-line ()
(save-excursion
(end-of-line 0)
(unicon-is-continuation-line)))
(defun unicon-backward-to-start-of-if (&optional limit)
"Move to the start of the last \"unbalanced\" if."
(or limit (setq limit (save-excursion (beginning-of-unicon-defun) (point))))
(let ((if-level 1)
(case-fold-search nil))
(while (not (zerop if-level))
(backward-sexp 1)
(cond ((and (looking-at "else\\b")
(not (looking-at "else\\s_")))
(setq if-level (1+ if-level)))
((and (looking-at "if\\b")
(not (looking-at "if\\s_")))
(setq if-level (1- if-level)))
((< (point) limit)
(setq if-level 0)
(goto-char limit))))))
(defun mark-unicon-function ()
"Put mark at end of Unicon function, point at beginning."
(interactive)
(push-mark (point))
(end-of-unicon-defun)
(push-mark (point))
(beginning-of-line 0)
(beginning-of-unicon-defun))
(defun beginning-of-unicon-defun ()
"Go to the start of the enclosing procedure; return t if at top level."
(interactive)
(cond
((re-search-backward "^\\s *procedure\\s \\|^\\s *initially\\s *$\\|^\\s
*initially\\s *\\s(.*$\\|^\\s *method\\s \\|^class\\s \\|^\\s *end\\s *$" (point-min)
'move)
(skip-chars-forward " \t")
(cond
((looking-at "c")
(setq unicon-extra-indent unicon-class-indent-level)
(setq unicon-end-indent-level 0)
t
)
((looking-at "e")
(setq unicon-extra-indent (current-column))
(setq unicon-end-indent-level 0)
t
)
((looking-at "i")
(setq unicon-end-indent-level 0)
nil
)
(t
(setq unicon-extra-indent (current-column))
(setq unicon-end-indent-level (current-column))
nil
)
)
)
(t
(setq unicon-extra-indent 0)
t
)
)
)
(defun end-of-unicon-defun ()
(interactive)
(if (not (bobp)) (forward-char -1))
(re-search-forward "^\\s *end\\s *$" (point-max) 'move)
(forward-word -1)
(forward-line 1))
(defun indent-unicon-exp ()
"Indent each line of the Unicon grouping following point."
(interactive)
(let ((indent-stack (list nil))
(contain-stack (list (point)))
(case-fold-search nil)
restart outer-loop-done inner-loop-done state ostate
this-indent last-sexp
at-else at-brace at-do
(opoint (point))
(next-depth 0))
(save-excursion
(forward-sexp 1))
(save-excursion
(setq outer-loop-done nil)
(while (and (not (eobp)) (not outer-loop-done))
(setq last-depth next-depth)
;; Compute how depth changes over this line
;; plus enough other lines to get to one that
;; does not end inside a comment or string.
;; Meanwhile, do appropriate indentation on comment lines.
(setq innerloop-done nil)
(while (and (not innerloop-done)
(not (and (eobp) (setq outer-loop-done t))))
(setq ostate state)
(setq state (parse-partial-sexp (point) (progn (end-of-line) (point))
nil nil state))
(setq next-depth (car state))
(if (and (car (cdr (cdr state)))
(>= (car (cdr (cdr state))) 0))
(setq last-sexp (car (cdr (cdr state)))))
(if (or (nth 4 ostate))
(unicon-indent-line))
(if (or (nth 3 state))
(forward-line 1)
(setq innerloop-done t)))
(if (<= next-depth 0)
(setq outer-loop-done t))
(if outer-loop-done
nil
(if (/= last-depth next-depth)
(setq last-sexp nil))
(while (> last-depth next-depth)
(setq indent-stack (cdr indent-stack)
contain-stack (cdr contain-stack)
last-depth (1- last-depth)))
(while (< last-depth next-depth)
(setq indent-stack (cons nil indent-stack)
contain-stack (cons nil contain-stack)
last-depth (1+ last-depth)))
(if (null (car contain-stack))
(setcar contain-stack (or (car (cdr state))
(save-excursion (forward-sexp -1)
(point)))))
(forward-line 1)
(skip-chars-forward " \t")
(if (eolp)
nil
(if (and (car indent-stack)
(>= (car indent-stack) 0))
;; Line is on an existing nesting level.
;; Lines inside parens are handled specially.
(if (/= (char-after (car contain-stack)) ?{)
(setq this-indent (car indent-stack))
;; Line is at statement level.
;; Is it a new statement? Is it an else?
;; Find last non-comment character before this line
(save-excursion
(setq at-else (looking-at "else\\W"))
(setq at-brace (= (following-char) ?{))
(unicon-backward-to-noncomment opoint)
(if (unicon-is-continuation-line)
;; Preceding line did not end in comma or semi;
;; indent this line unicon-continued-statement-offset
;; more than previous.
(progn
(unicon-backward-to-start-of-continued-exp (car contain-stack))
(setq this-indent
(+ unicon-continued-statement-offset (current-column)
(if at-brace unicon-continued-brace-offset 0))))
;; Preceding line ended in comma or semi;
;; use the standard indent for this level.
(if at-else
(progn (unicon-backward-to-start-of-if opoint)
(setq this-indent (current-indentation)))
(setq this-indent (car indent-stack))))))
;; Just started a new nesting level.
;; Compute the standard indent for this level.
(let ((val (calculate-unicon-indent
(if (car indent-stack)
(- (car indent-stack))))))
(setcar indent-stack
(setq this-indent val))))
;; Adjust line indentation according to its contents
(if (or (= (following-char) ?})
(and (looking-at "end\\b")
(not (looking-at "end\\s_")))
)
(setq this-indent (- this-indent unicon-indent-level)))
(if (= (following-char) ?{)
(setq this-indent (+ this-indent unicon-brace-offset)))
;; Put chosen indentation into effect.
(or (= (current-column) this-indent)
(progn
(delete-region (point) (progn (beginning-of-line) (point)))
(indent-to-spaces this-indent)))
;; Indent any comment following the text.
(or (looking-at comment-start-skip)
(if (re-search-forward comment-start-skip (save-excursion (end-of-line) (point)) t)
(progn (indent-for-comment) (beginning-of-line))))))))))
(defun indent-to-spaces (n)
(if unicon-indent-use-only-spaces
(while (< (current-column) n)
(insert " ")
)
(indent-to n)
)
)
(defun electric-unicon-terminate-line ()
"Terminate line and indent next line."
(interactive)
(if unicon-electric-newline
(progn
(save-excursion
(unicon-indent-line)
)
(newline)
;; Indent next line
(unicon-indent-line)
)
(newline)
)
)
;;; unicon.el ends here
-----Original Message-----
From: Nolan Clayton [mailto:[EMAIL PROTECTED]
Sent: Sun 9/21/2003 2:50 AM
To: [EMAIL PROTECTED]
Cc:
Subject: [Unicon-group] unicon.el
Group,
I have modified the unicon.el file a bunch to make my work much
easier. Here is a list of some of the new additions to unicon.el:
-Global-font-lock-mode support (syntax highlighting)
-Auto Indenting (just hit return and it will indent unicon style)
-'ESC g' = M-x goto-line
-'ESC G' = M-x what-line
-'C-c C-c' = M-x compile (compile now reads 'unicon -c -u')
(you can set the compile command to read whatever you
want, the local variable 'compile-command is in unicon.el)
Please let me know if there is anything else I can add to unicon
mode. I am not the best emacs lisp programmer (the worst) but I can
probably figure out how add some more stuff.
Thanks,
Nolan Clayton
My Copy
http://www.cs.nmsu.edu/~nclayton/unicon.el
The Original and Instructions can be found
at Mr. Parlett's Unicon Resources webpage
http://www.zenadsl6357.zen.co.uk/unicon/
-------------------------------------------------------
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_______________________________________________
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