--- /dev/null
+;;; dcl-mode.el --- major mode for editing DCL command files
+
+;; Author: Odd Gripenstam <gripenstamol@decus.se>
+;; Maintainer: Odd Gripenstam <gripenstamol@decus.se>
+;; Keywords: DCL editing major-mode languages
+
+;;; Commentary:
+
+;; DCL mode is a package for editing DCL command files. It helps you
+;; indent lines, add leading `$' and trailing `-', move around in the
+;; code and insert lexical functions.
+;;
+;; Type `C-h m' when you are editing a .COM file to get more
+;; information about this mode.
+;;
+;; To use templates you will need a version of tempo.el that is at
+;; least later than the buggy 1.1.1, which was included with my versions of
+;; Emacs. I used version 1.2.4.
+;; The latest tempo.el distribution can be fetched from
+;; ftp.lysator.liu.se in the directory /pub/emacs.
+;; I recommend setting (setq tempo-interactive t). This will make
+;; tempo prompt you for values to put in the blank spots in the templates.
+;;
+;; There is limited support for imenu. The limitation is that you need
+;; a version of imenu.el that uses imenu-generic-expression. I found
+;; the version I use in Emacs 19.30. (It was *so* much easier to hook
+;; into that version than the one in 19.27...)
+;;
+;; Any feedback will be welcomed. If you write functions for
+;; dcl-calc-command-indent-function or dcl-calc-cont-indent-function,
+;; please send them to the maintainer.
+;;
+;;
+;; Ideas for improvement:
+;; * Change meaning of `left margin' when dcl-tab-always-indent is nil.
+;; Consider the following line (`_' is the cursor):
+;; $ label: _ command
+;; Pressing tab with the cursor at the underline now inserts a tab.
+;; This should be part of the left margin and pressing tab should indent
+;; the line.
+;; * Make M-LFD work properly with comments in all cases. Now it only
+;; works on comment-only lines. But what is "properly"? New rules for
+;; indenting comments?
+;; * Even smarter indentation of continuation lines.
+;; * A delete-indentation function (M-^) that joins continued lines,
+;; including lines with end line comments?
+;; * Handle DECK/EOD.
+;; * `indent list' commands: C-M-q, C-u TAB. What is a list in DCL? One
+;; complete command line? A block? A subroutine?
+
+;;; Code:
+
+;;; *** Customization *****************************************************
+
+
+(defvar dcl-basic-offset 4
+ "*Number of columns to indent a block in DCL.
+A block is the commands between THEN-ELSE-ENDIF and between the commands
+dcl-block-begin-regexp and dcl-block-end-regexp.
+
+The meaning of this variable may be changed if
+dcl-calc-command-indent-function is set to a function.")
+
+
+(defvar dcl-continuation-offset 6
+ "*Number of columns to indent a continuation line in DCL.
+A continuation line is a line that follows a line ending with `-'.
+
+The meaning of this variable may be changed if
+dcl-calc-cont-indent-function is set to a function.")
+
+
+(defvar dcl-margin-offset 8
+ "*Indentation for the first command line in DCL.
+The first command line in a file or after a SUBROUTINE statement is indented
+this much. Other command lines are indented the same number of columns as
+the preceding command line.
+A command line is a line that starts with `$'.")
+
+
+(defvar dcl-margin-label-offset 2
+ "*Number of columns to indent a margin label in DCL.
+A margin label is a label that doesn't begin or end a block, i.e. it
+doesn't match dcl-block-begin-regexp or dcl-block-end-regexp.")
+
+
+(defvar dcl-comment-line-regexp "^\\$!"
+ "*Regexp describing the start of a comment line in DCL.
+Comment lines are not indented.")
+
+
+(defvar dcl-block-begin-regexp "loop[0-9]*:"
+ "*Regexp describing a command that begins an indented block in DCL.
+Set to nil to only indent at THEN-ELSE-ENDIF.")
+
+
+(defvar dcl-block-end-regexp "endloop[0-9]*:"
+ "*Regexp describing a command that ends an indented block in DCL.
+Set to nil to only indent at THEN-ELSE-ENDIF.")
+
+
+(defvar dcl-calc-command-indent-function nil
+ "*Function to calculate indentation for a command line in DCL.
+If this variable is non-nil it is called as a function:
+
+\(func INDENT-TYPE CUR-INDENT EXTRA-INDENT LAST-POINT THIS-POINT)
+
+The function must return the number of columns to indent the current line or
+nil to get the default indentation.
+
+INDENT-TYPE is a symbol indicating what kind of indentation should be done.
+It can have the following values:
+ indent the lines indentation should be increased, e.g. after THEN.
+ outdent the lines indentation should be decreased, e.g a line with ENDIF.
+ first-line indentation for the first line in a buffer or SUBROUTINE.
+CUR-INDENT is the indentation of the preceding command line.
+EXTRA-INDENT is the default change in indentation for this line
+\(a negative number for 'outdent).
+LAST-POINT is the buffer position of the first significant word on the
+previous line or nil if the current line is the first line.
+THIS-POINT is the buffer position of the first significant word on the
+current line.
+
+If this variable is nil, the indentation is calculated as
+CUR-INDENT + EXTRA-INDENT.
+
+This package includes two functions suitable for this:
+ dcl-calc-command-indent-multiple
+ dcl-calc-command-indent-hang
+")
+
+
+(defvar dcl-calc-cont-indent-function 'dcl-calc-cont-indent-relative
+ "*Function to calculate indentation for a continuation line.
+If this variable is non-nil it is called as a function:
+
+\(func CUR-INDENT EXTRA-INDENT)
+
+The function must return the number of columns to indent the current line or
+nil to get the default indentation.
+
+If this variable is nil, the indentation is calculated as
+CUR-INDENT + EXTRA-INDENT.
+
+This package includes one function suitable for this:
+ dcl-calc-cont-indent-relative
+")
+
+
+(defvar dcl-tab-always-indent t
+ "*Controls the operation of the TAB key in DCL mode.
+If t, pressing TAB always indents the current line.
+If nil, pressing TAB indents the current line if point is at the left margin.
+Data lines (i.e. lines not part of a command line or continuation line) are
+never indented.")
+
+
+(defvar dcl-electric-characters t
+ "*Non-nil means reindent immediately when a label, ELSE or ENDIF is inserted.")
+
+
+(defvar dcl-tempo-comma ", "
+ "*Text to insert when a comma is needed in a template, in DCL mode.")
+
+(defvar dcl-tempo-left-paren "("
+ "*Text to insert when a left parenthesis is needed in a template in DCL.")
+
+
+(defvar dcl-tempo-right-paren ")"
+ "*Text to insert when a right parenthesis is needed in a template in DCL.")
+
+; I couldn't decide what looked best, so I'll let you decide...
+; Remember, you can also customize this with imenu-submenu-name-format.
+(defvar dcl-imenu-label-labels "Labels"
+ "*Imenu menu title for sub-listing with label names.")
+(defvar dcl-imenu-label-goto "GOTO"
+ "*Imenu menu title for sub-listing with GOTO statements.")
+(defvar dcl-imenu-label-gosub "GOSUB"
+ "*Imenu menu title for sub-listing with GOSUB statements.")
+(defvar dcl-imenu-label-call "CALL"
+ "*Imenu menu title for sub-listing with CALL statements.")
+
+(defvar dcl-imenu-generic-expression
+ (`
+ ((nil "^\\$[ \t]*\\([A-Za-z0-9_\$]+\\):[ \t]+SUBROUTINE\\b" 1)
+ ((, dcl-imenu-label-labels)
+ "^\\$[ \t]*\\([A-Za-z0-9_\$]+\\):\\([ \t]\\|$\\)" 1)
+ ((, dcl-imenu-label-goto) "\\s-GOTO[ \t]+\\([A-Za-z0-9_\$]+\\)" 1)
+ ((, dcl-imenu-label-gosub) "\\s-GOSUB[ \t]+\\([A-Za-z0-9_\$]+\\)" 1)
+ ((, dcl-imenu-label-call) "\\s-CALL[ \t]+\\([A-Za-z0-9_\$]+\\)" 1)))
+"*Default imenu generic expression for DCL.
+
+The default includes SUBROUTINE labels in the main listing and
+sub-listings for other labels, CALL, GOTO and GOSUB statements.
+See `imenu-generic-expression' for details.")
+
+
+(defvar dcl-mode-hook nil
+ "*Hook called by `dcl-mode'.")
+
+
+;;; *** Global variables ****************************************************
+
+
+(defvar dcl-mode-syntax-table nil
+ "Syntax table used in DCL-buffers.")
+(if dcl-mode-syntax-table
+ ()
+ (setq dcl-mode-syntax-table (make-syntax-table))
+ (modify-syntax-entry ?! "<" dcl-mode-syntax-table) ; comment start
+ (modify-syntax-entry ?\n ">" dcl-mode-syntax-table) ; comment end
+ (modify-syntax-entry ?< "(>" dcl-mode-syntax-table) ; < and ...
+ (modify-syntax-entry ?> ")<" dcl-mode-syntax-table) ; > is a matching pair
+)
+
+
+(defvar dcl-mode-map ()
+ "Keymap used in DCL-mode buffers.")
+(if dcl-mode-map
+ ()
+ (setq dcl-mode-map (make-sparse-keymap))
+ (define-key dcl-mode-map "\e\n" 'dcl-split-line)
+ (define-key dcl-mode-map "\e\t" 'tempo-complete-tag)
+ (define-key dcl-mode-map "\e^" 'dcl-delete-indentation)
+ (define-key dcl-mode-map "\em" 'dcl-back-to-indentation)
+ (define-key dcl-mode-map "\ee" 'dcl-forward-command)
+ (define-key dcl-mode-map "\ea" 'dcl-backward-command)
+ (define-key dcl-mode-map "\e\C-q" 'dcl-indent-command)
+ (define-key dcl-mode-map "\t" 'dcl-tab)
+ (define-key dcl-mode-map ":" 'dcl-electric-character)
+ (define-key dcl-mode-map "F" 'dcl-electric-character)
+ (define-key dcl-mode-map "f" 'dcl-electric-character)
+ (define-key dcl-mode-map "E" 'dcl-electric-character)
+ (define-key dcl-mode-map "e" 'dcl-electric-character)
+ (define-key dcl-mode-map "\C-c\C-o" 'dcl-set-option)
+ (define-key dcl-mode-map "\C-c\C-f" 'tempo-forward-mark)
+ (define-key dcl-mode-map "\C-c\C-b" 'tempo-backward-mark)
+
+ (define-key dcl-mode-map [menu-bar] (make-sparse-keymap))
+ (define-key dcl-mode-map [menu-bar dcl]
+ (cons "DCL" (make-sparse-keymap "DCL")))
+
+ ;; Define these in bottom-up order
+ (define-key dcl-mode-map [menu-bar dcl tempo-backward-mark]
+ '("Previous template mark" . tempo-backward-mark))
+ (define-key dcl-mode-map [menu-bar dcl tempo-forward-mark]
+ '("Next template mark" . tempo-forward-mark))
+ (define-key dcl-mode-map [menu-bar dcl tempo-complete-tag]
+ '("Complete template tag" . tempo-complete-tag))
+ (define-key dcl-mode-map [menu-bar dcl dcl-separator-tempo]
+ '("--"))
+ (define-key dcl-mode-map [menu-bar dcl dcl-save-all-options]
+ '("Save all options" . dcl-save-all-options))
+ (define-key dcl-mode-map [menu-bar dcl dcl-save-nondefault-options]
+ '("Save changed options" . dcl-save-nondefault-options))
+ (define-key dcl-mode-map [menu-bar dcl dcl-set-option]
+ '("Set option" . dcl-set-option))
+ (define-key dcl-mode-map [menu-bar dcl dcl-separator-option]
+ '("--"))
+ (define-key dcl-mode-map [menu-bar dcl dcl-delete-indentation]
+ '("Delete indentation" . dcl-delete-indentation))
+ (define-key dcl-mode-map [menu-bar dcl dcl-split-line]
+ '("Split line" . dcl-split-line))
+ (define-key dcl-mode-map [menu-bar dcl dcl-indent-command]
+ '("Indent command" . dcl-indent-command))
+ (define-key dcl-mode-map [menu-bar dcl dcl-tab]
+ '("Indent line/insert tab" . dcl-tab))
+ (define-key dcl-mode-map [menu-bar dcl dcl-back-to-indentation]
+ '("Back to indentation" . dcl-back-to-indentation))
+ (define-key dcl-mode-map [menu-bar dcl dcl-forward-command]
+ '("End of statement" . dcl-forward-command))
+ (define-key dcl-mode-map [menu-bar dcl dcl-backward-command]
+ '("Beginning of statement" . dcl-backward-command))
+ ;; imenu is only supported for versions with imenu-generic-expression
+ (if (boundp 'imenu-generic-expression)
+ (progn
+ (define-key dcl-mode-map [menu-bar dcl dcl-separator-movement]
+ '("--"))
+ (define-key dcl-mode-map [menu-bar dcl imenu]
+ '("Buffer index menu" . imenu))))
+ )
+
+
+(defvar dcl-ws-r
+ "\\([ \t]*-[ \t]*\\(!.*\\)*\n\\)*[ \t]*"
+ "Regular expression describing white space in a DCL command line.
+White space is any number of continued lines with only space,tab,endcomment
+followed by space or tab.")
+
+
+(defvar dcl-label-r
+ "[a-zA-Z0-9_\$]*:\\([ \t!]\\|$\\)"
+ "Regular expression describing a label.
+A label is a name followed by a colon followed by white-space or end-of-line.")
+
+
+(defvar dcl-cmd-r
+ "^\\$\\(.*-[ \t]*\\(!.*\\)*\n\\)*[^!\"\n]*\\(\".*\\(\"\".*\\)*\"\\)*[^!\"\n]*"
+ "Regular expression describing a DCL command line up to a trailing comment.
+A line starting with $, optionally followed by continuation lines,
+followed by the end of the command line.
+A continuation line is any characters followed by `-',
+optionally followed by a comment, followed by a newline.")
+
+
+(defvar dcl-command-regexp
+ "^\\$\\(.*-[ \t]*\\(!.*\\)*\n\\)*.*\\(\".*\\(\"\".*\\)*\"\\)*"
+ "Regular expression describing a DCL command line.
+A line starting with $, optionally followed by continuation lines,
+followed by the end of the command line.
+A continuation line is any characters followed by `-',
+optionally followed by a comment, followed by a newline.")
+
+
+(defvar dcl-electric-reindent-regexps
+ (list "endif" "else" dcl-label-r)
+ "*Regexps that can trigger an electric reindent.
+A list of regexps that will trigger a reindent if the last letter
+is defined as dcl-electric-character.
+
+E.g.: if this list contains `endif', the key `f' is defined as
+dcl-electric-character and the you have just typed the `f' in
+`endif', the line will be reindented.")
+
+
+(defvar dcl-option-alist
+ '((dcl-basic-offset dcl-option-value-basic)
+ (dcl-continuation-offset curval)
+ (dcl-margin-offset dcl-option-value-margin-offset)
+ (dcl-margin-label-offset dcl-option-value-offset)
+ (dcl-comment-line-regexp dcl-option-value-comment-line)
+ (dcl-block-begin-regexp curval)
+ (dcl-block-end-regexp curval)
+ (dcl-tab-always-indent toggle)
+ (dcl-electric-characters toggle)
+ (dcl-electric-reindent-regexps curval)
+ (dcl-tempo-comma curval)
+ (dcl-tempo-left-paren curval)
+ (dcl-tempo-right-paren curval)
+ (dcl-calc-command-indent-function curval)
+ (dcl-calc-cont-indent-function curval)
+ (comment-start curval)
+ (comment-start-skip curval)
+ )
+ "Options and default values for dcl-set-option.
+
+An alist with option variables and functions or keywords to get a
+default value for the option.
+
+The keywords are:
+curval the current value
+toggle the opposite of the current value (for t/nil)")
+
+
+(defvar dcl-option-history
+ (mapcar (lambda (option-assoc)
+ (format "%s" (car option-assoc)))
+ dcl-option-alist)
+ "The history list for dcl-set-option.
+Preloaded with all known option names from dcl-option-alist")
+
+
+;; Must be defined after dcl-cmd-r
+;; This version is more correct but much slower than the one
+;; above. This version won't find GOTOs in comments or text strings.
+;(defvar dcl-imenu-generic-expression
+; (`
+; ((nil "^\\$[ \t]*\\([A-Za-z0-9_\$]+\\):[ \t]+SUBROUTINE\\b" 1)
+; ("Labels" "^\\$[ \t]*\\([A-Za-z0-9_\$]+\\):\\([ \t]\\|$\\)" 1)
+; ("GOTO" (, (concat dcl-cmd-r "GOTO[ \t]+\\([A-Za-z0-9_\$]+\\)")) 5)
+; ("GOSUB" (, (concat dcl-cmd-r
+; "GOSUB[ \t]+\\([A-Za-z0-9_\$]+\\)")) 5)
+; ("CALL" (, (concat dcl-cmd-r "CALL[ \t]+\\([A-Za-z0-9_\$]+\\)")) 5)))
+; "*Default imenu generic expression for DCL.
+
+;The default includes SUBROUTINE labels in the main listing and
+;sub-listings for other labels, CALL, GOTO and GOSUB statements.
+;See `imenu-generic-expression' in a recent (e.g. Emacs 19.30) imenu.el
+;for details.")
+
+
+;;; *** Mode initialization *************************************************
+
+
+;;;###autoload
+(defun dcl-mode ()
+ "Major mode for editing DCL-files.
+
+This mode indents command lines in blocks. (A block is commands between
+THEN-ELSE-ENDIF and between lines matching dcl-block-begin-regexp and
+dcl-block-end-regexp.)
+
+Labels are indented to a fixed position unless they begin or end a block.
+Whole-line comments (matching dcl-comment-line-regexp) are not indented.
+Data lines are not indented.
+
+Key bindings:
+
+\\{dcl-mode-map}
+Commands not usually bound to keys:
+
+\\[dcl-save-nondefault-options]\t\tSave changed options
+\\[dcl-save-all-options]\t\tSave all options
+\\[dcl-save-option]\t\t\tSave any option
+\\[dcl-save-mode]\t\t\tSave buffer mode
+
+Variables controlling indentation style and extra features:
+
+ dcl-basic-offset
+ Extra indentation within blocks.
+
+ dcl-continuation-offset
+ Extra indentation for continued lines.
+
+ dcl-margin-offset
+ Indentation for the first command line in a file or SUBROUTINE.
+
+ dcl-margin-label-offset
+ Indentation for a label.
+
+ dcl-comment-line-regexp
+ Lines matching this regexp will not be indented.
+
+ dcl-block-begin-regexp
+ dcl-block-end-regexp
+ Regexps that match command lines that begin and end, respectively,
+ a block of commmand lines that will be given extra indentation.
+ Command lines between THEN-ELSE-ENDIF are always indented; these variables
+ make it possible to define other places to indent.
+ Set to nil to disable this feature.
+
+ dcl-calc-command-indent-function
+ Can be set to a function that customizes indentation for command lines.
+ Two such functions are included in the package:
+ dcl-calc-command-indent-multiple
+ dcl-calc-command-indent-hang
+
+ dcl-calc-cont-indent-function
+ Can be set to a function that customizes indentation for continued lines.
+ One such function is included in the package:
+ dcl-calc-cont-indent-relative (set by default)
+
+ dcl-tab-always-indent
+ If t, pressing TAB always indents the current line.
+ If nil, pressing TAB indents the current line if point is at the left
+ margin.
+
+ dcl-electric-characters
+ Non-nil causes lines to be indented at once when a label, ELSE or ENDIF is
+ typed.
+
+ dcl-electric-reindent-regexps
+ Use this variable and function dcl-electric-character to customize
+ which words trigger electric indentation.
+
+ dcl-tempo-comma
+ dcl-tempo-left-paren
+ dcl-tempo-right-paren
+ These variables control the look of expanded templates.
+
+ dcl-imenu-generic-expression
+ Default value for imenu-generic-expression. The default includes
+ SUBROUTINE labels in the main listing and sub-listings for
+ other labels, CALL, GOTO and GOSUB statements.
+
+ dcl-imenu-label-labels
+ dcl-imenu-label-goto
+ dcl-imenu-label-gosub
+ dcl-imenu-label-call
+ Change the text that is used as sub-listing labels in imenu.
+
+Loading this package calls the value of the variable
+`dcl-mode-load-hook' with no args, if that value is non-nil.
+Turning on DCL mode calls the value of the variable `dcl-mode-hook'
+with no args, if that value is non-nil.
+
+
+The following example uses the default values for all variables:
+
+$! This is a comment line that is not indented (it matches
+$! dcl-comment-line-regexp)
+$! Next follows the first command line. It is indented dcl-margin-offset.
+$ i = 1
+$ ! Other comments are indented like command lines.
+$ ! A margin label indented dcl-margin-label-offset:
+$ label:
+$ if i.eq.1
+$ then
+$ ! Lines between THEN-ELSE and ELSE-ENDIF are
+$ ! indented dcl-basic-offset
+$ loop1: ! This matches dcl-block-begin-regexp...
+$ ! ...so this line is indented dcl-basic-offset
+$ text = \"This \" + - ! is a continued line
+ \"lined up with the command line\"
+$ type sys$input
+Data lines are not indented at all.
+$ endloop1: ! This matches dcl-block-end-regexp
+$ endif
+$
+"
+ (interactive)
+ (kill-all-local-variables)
+ (set-syntax-table dcl-mode-syntax-table)
+
+ (make-local-variable 'indent-line-function)
+ (setq indent-line-function 'dcl-indent-line)
+
+ (make-local-variable 'comment-start)
+ (setq comment-start "!")
+
+ (make-local-variable 'comment-end)
+ (setq comment-end "")
+
+ (make-local-variable 'comment-multi-line)
+ (setq comment-multi-line nil)
+
+ ;; This used to be "^\\$[ \t]*![ \t]*" which looks more correct.
+ ;; The drawback was that you couldn't make empty comment lines by pressing
+ ;; C-M-j repeatedly - only the first line became a comment line.
+ ;; This version has the drawback that the "$" can be anywhere in the line,
+ ;; and something inappropriate might be interpreted as a comment.
+ (make-local-variable 'comment-start-skip)
+ (setq comment-start-skip "\\$[ \t]*![ \t]*")
+
+ (if (boundp 'imenu-generic-expression)
+ (setq imenu-generic-expression dcl-imenu-generic-expression))
+ (setq imenu-create-index-function 'dcl-imenu-create-index-function)
+
+ (make-local-variable 'dcl-comment-line-regexp)
+ (make-local-variable 'dcl-block-begin-regexp)
+ (make-local-variable 'dcl-block-end-regexp)
+ (make-local-variable 'dcl-basic-offset)
+ (make-local-variable 'dcl-continuation-offset)
+ (make-local-variable 'dcl-margin-label-offset)
+ (make-local-variable 'dcl-margin-offset)
+ (make-local-variable 'dcl-tab-always-indent)
+ (make-local-variable 'dcl-electric-characters)
+ (make-local-variable 'dcl-calc-command-indent-function)
+ (make-local-variable 'dcl-calc-cont-indent-function)
+ (make-local-variable 'dcl-electric-reindent-regexps)
+
+ (setq major-mode 'dcl-mode)
+ (setq mode-name "DCL")
+ (use-local-map dcl-mode-map)
+ (tempo-use-tag-list 'dcl-tempo-tags)
+ (run-hooks 'dcl-mode-hook))
+
+
+;;; *** Movement commands ***************************************************
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-beginning-of-statement ()
+ "Go to the beginning of the preceding or current command line."
+ (interactive)
+ (re-search-backward dcl-command-regexp nil t))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-end-of-statement ()
+ "Go to the end of the next or current command line."
+ (interactive)
+ (if (or (dcl-end-of-command-p)
+ (dcl-beginning-of-command-p)
+ (not (dcl-command-p)))
+ ()
+ (dcl-beginning-of-statement))
+ (re-search-forward dcl-command-regexp nil t))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-beginning-of-command ()
+ "Move point to beginning of current command."
+ (interactive)
+ (let ((type (dcl-get-line-type)))
+ (if (and (eq type '$)
+ (bolp))
+ () ; already in the correct position
+ (dcl-beginning-of-statement))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-end-of-command ()
+ "Move point to end of current command or next command if not on a command."
+ (interactive)
+ (let ((type (dcl-get-line-type))
+ (start (point)))
+ (if (or (eq type '$)
+ (eq type '-))
+ (progn
+ (dcl-beginning-of-command)
+ (dcl-end-of-statement))
+ (dcl-end-of-statement))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-backward-command (&optional incl-comment-commands)
+ "Move backward to a command.
+Move point to the preceding command line that is not a comment line,
+a command line with only a comment, only contains a `$' or only
+contains a label.
+
+Returns point of the found command line or nil if not able to move."
+ (interactive)
+ (let ((start (point))
+ done
+ retval)
+ ;; Find first non-empty command line
+ (while (not done)
+ ;; back up one statement and look at the command
+ (if (dcl-beginning-of-statement)
+ (cond
+ ((and dcl-block-begin-regexp ; might be nil
+ (looking-at (concat "^\\$" dcl-ws-r
+ dcl-block-begin-regexp)))
+ (setq done t retval (point)))
+ ((and dcl-block-end-regexp ; might be nil
+ (looking-at (concat "^\\$" dcl-ws-r
+ dcl-block-end-regexp)))
+ (setq done t retval (point)))
+ ((looking-at dcl-comment-line-regexp)
+ t) ; comment line, one more loop
+ ((and (not incl-comment-commands)
+ (looking-at "\\$[ \t]*!"))
+ t) ; comment only command, loop...
+ ((looking-at "^\\$[ \t]*$")
+ t) ; empty line, one more loop
+ ((not (looking-at
+ (concat "^\\$" dcl-ws-r dcl-label-r dcl-ws-r "$")))
+ (setq done t) ; not a label-only line, exit the loop
+ (setq retval (point))))
+ ;; We couldn't go further back, and we haven't found a command yet.
+ ;; Return to the start positionn
+ (goto-char start)
+ (setq done t)
+ (setq retval nil)))
+ retval))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-forward-command (&optional incl-comment-commands)
+ "Move forward to a command.
+Move point to the end of the next command line that is not a comment line,
+a command line with only a comment, only contains a `$' or only
+contains a label.
+
+Returns point of the found command line or nil if not able to move."
+ (interactive)
+ (let ((start (point))
+ done
+ retval)
+ ;; Find first non-empty command line
+ (while (not done)
+ ;; go forward one statement and look at the command
+ (if (dcl-end-of-statement)
+ (save-excursion
+ (dcl-beginning-of-statement)
+ (cond
+ ((and dcl-block-begin-regexp ; might be nil
+ (looking-at (concat "^\\$" dcl-ws-r
+ dcl-block-begin-regexp)))
+ (setq done t)
+ (setq retval (point)))
+ ((and dcl-block-end-regexp ; might be nil
+ (looking-at (concat "^\\$" dcl-ws-r
+ dcl-block-end-regexp)))
+ (setq done t)
+ (setq retval (point)))
+ ((looking-at dcl-comment-line-regexp)
+ t) ; comment line, one more loop
+ ((and (not incl-comment-commands)
+ (looking-at "\\$[ \t]*!"))
+ t) ; comment only command, loop...
+ ((looking-at "^\\$[ \t]*$")
+ t) ; empty line, one more loop
+ ((not (looking-at
+ (concat "^\\$" dcl-ws-r dcl-label-r dcl-ws-r "$")))
+ (setq done t) ; not a label-only line, exit the loop
+ (setq retval (point)))))
+ ;; We couldn't go further back, and we haven't found a command yet.
+ ;; Return to the start positionn
+ (goto-char start)
+ (setq done t)
+ (setq retval nil)))
+ retval))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-back-to-indentation ()
+ "Move point to the first non-whitespace character on this line.
+Leading $ and labels counts as whitespace in this case.
+If this is a comment line then move to the first non-whitespace character
+in the comment.
+
+Typing \\[dcl-back-to-indentation] several times in a row will move point to other
+`interesting' points closer to the left margin, and then back to the
+rightmost point again.
+
+E.g. on the following line, point would go to the positions indicated
+by the numbers in order 1-2-3-1-... :
+
+ $ label: command
+ 3 2 1"
+ (interactive)
+ (if (eq last-command 'dcl-back-to-indentation)
+ (dcl-back-to-indentation-1 (point))
+ (dcl-back-to-indentation-1)))
+(defun dcl-back-to-indentation-1 (&optional limit)
+ "Helper function for dcl-back-to-indentation"
+
+ ;; "Indentation points" that we will travel to
+ ;; $ l: ! comment
+ ;; 4 3 2 1
+ ;;
+ ;; $ ! text
+ ;; 3 2 1
+ ;;
+ ;; $ l: command !
+ ;; 3 2 1
+ ;;
+ ;; text
+ ;; 1
+
+ (let* ((default-limit (save-excursion (end-of-line) (1+ (point))))
+ (limit (or limit default-limit))
+ (last-good-point (point))
+ (opoint (point)))
+ ;; Move over blanks
+ (back-to-indentation)
+
+ ;; If we already were at the outermost indentation point then we
+ ;; start searching for the innermost point again.
+ (if (= (point) opoint)
+ (setq limit default-limit))
+
+ (if (< (point) limit)
+ (setq last-good-point (point)))
+
+ (cond
+ ;; Special treatment for comment lines. We are trying to allow
+ ;; things like "$ !*" as comment lines.
+ ((looking-at dcl-comment-line-regexp)
+ (re-search-forward (concat dcl-comment-line-regexp "[ \t]*") limit t)
+ (if (< (point) limit)
+ (setq last-good-point (point))))
+
+ ;; Normal command line
+ ((looking-at "^\\$[ \t]*")
+ ;; Move over leading "$" and blanks
+ (re-search-forward "^\\$[ \t]*" limit t)
+ (if (< (point) limit)
+ (setq last-good-point (point)))
+
+ ;; Move over a label (if it isn't a block begin/end)
+ ;; We must treat block begin/end labels as commands because
+ ;; dcl-set-option relies on it.
+ (if (and (looking-at dcl-label-r)
+ (not (or (and dcl-block-begin-regexp
+ (looking-at dcl-block-begin-regexp))
+ (and dcl-block-end-regexp
+ (looking-at dcl-block-end-regexp)))))
+ (re-search-forward (concat dcl-label-r "[ \t]*") limit t))
+ (if (< (point) limit)
+ (setq last-good-point (point)))
+
+ ;; Move over the beginning of a comment
+ (if (looking-at "![ \t]*")
+ (re-search-forward "![ \t]*" limit t))
+ (if (< (point) limit)
+ (setq last-good-point (point)))))
+ (goto-char last-good-point)))
+
+
+;;; *** Support for indentation *********************************************
+
+
+(defun dcl-get-line-type ()
+ "Determine the type of the current line.
+Returns one of the following symbols:
+ $ for a complete command line or the beginning of a command line.
+ - for a continuation line
+ $! for a comment line
+ data for a data line
+ empty-data for an empty line following a data line
+ empty-$ for an empty line following a command line"
+ (or
+ ;; Check if it's a comment line.
+ ;; A comment line starts with $!
+ (save-excursion
+ (beginning-of-line)
+ (if (looking-at dcl-comment-line-regexp)
+ '$!))
+ ;; Check if it's a command line.
+ ;; A command line starts with $
+ (save-excursion
+ (beginning-of-line)
+ (if (looking-at "^\\$")
+ '$))
+ ;; Check if it's a continuation line
+ (save-excursion
+ (beginning-of-line)
+ ;; If we're at the beginning of the buffer it can't be a continuation
+ (if (bobp)
+ ()
+ (let ((opoint (point)))
+ (dcl-beginning-of-statement)
+ (re-search-forward dcl-command-regexp opoint t)
+ (if (>= (point) opoint)
+ '-))))
+ ;; Empty lines might be different things
+ (save-excursion
+ (if (and (bolp) (eolp))
+ (if (bobp)
+ 'empty-$
+ (forward-line -1)
+ (let ((type (dcl-get-line-type)))
+ (cond
+ ((or (equal type '$) (equal type '$!) (equal type '-))
+ 'empty-$)
+ ((equal type 'data)
+ 'empty-data))))))
+ ;; Anything else must be a data line
+ (progn 'data)
+ ))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-indentation-point ()
+ "Return point of first non-`whitespace' on this line."
+ (save-excursion
+ (dcl-back-to-indentation)
+ (point)))
+
+
+;;;---------------------------------------------------------------------------
+(defun dcl-show-line-type ()
+ "Test dcl-get-line-type."
+ (interactive)
+ (let ((type (dcl-get-line-type)))
+ (cond
+ ((equal type '$)
+ (message "command line"))
+ ((equal type '\?)
+ (message "?"))
+ ((equal type '$!)
+ (message "comment line"))
+ ((equal type '-)
+ (message "continuation line"))
+ ((equal type 'data)
+ (message "data"))
+ ((equal type 'empty-data)
+ (message "empty-data"))
+ ((equal type 'empty-$)
+ (message "empty-$"))
+ (t
+ (message "hupp"))
+ )))
+
+
+;;; *** Perform indentation *************************************************
+
+
+;;;---------------------------------------------------------------------------
+(defun dcl-calc-command-indent-multiple
+ (indent-type cur-indent extra-indent last-point this-point)
+ "Indent lines to a multiple of dcl-basic-offset.
+
+Set dcl-calc-command-indent-function to this function to customize
+indentation of command lines.
+
+Command lines that need to be indented beyond the left margin are
+always indented to a column that is a multiple of dcl-basic-offset, as
+if tab stops were set at 4, 8, 12, etc.
+
+This supports a formatting style like this (dcl-margin offset = 2,
+dcl-basic-offset = 4):
+
+$ if cond
+$ then
+$ if cond
+$ then
+$ ! etc
+"
+ ;; calculate indentation if it's an interesting indent-type,
+ ;; otherwise return nil to get the default indentation
+ (let ((indent))
+ (cond
+ ((equal indent-type 'indent)
+ (setq indent (- cur-indent (% cur-indent dcl-basic-offset)))
+ (setq indent (+ indent extra-indent))))))
+
+
+;;;---------------------------------------------------------------------------
+;; Some people actually writes likes this. To each his own...
+(defun dcl-calc-command-indent-hang
+ (indent-type cur-indent extra-indent last-point this-point)
+ "Indent lines as default, but indent THEN, ELSE and ENDIF extra.
+
+Set dcl-calc-command-indent-function to this function to customize
+indentation of command lines.
+
+This function supports a formatting style like this:
+
+$ if cond
+$ then
+$ xxx
+$ endif
+$ xxx
+
+If you use this function you will probably want to add \"then\" to
+dcl-electric-reindent-regexps and define the key \"n\" as
+dcl-electric-character.
+"
+ (let ((case-fold-search t))
+ (save-excursion
+ (cond
+ ;; No indentation, this word is `then': +2
+ ;; last word was endif: -2
+ ((null indent-type)
+ (or (progn
+ (goto-char this-point)
+ (if (looking-at "\\bthen\\b")
+ (+ cur-indent extra-indent 2)))
+ (progn
+ (goto-char last-point)
+ (if (looking-at "\\bendif\\b")
+ (- (+ cur-indent extra-indent) 2)))))
+ ;; Indentation, last word was `then' or `else': -2
+ ((equal indent-type 'indent)
+ (goto-char last-point)
+ (cond
+ ((looking-at "\\bthen\\b")
+ (- (+ cur-indent extra-indent) 2))
+ ((looking-at "\\belse\\b")
+ (- (+ cur-indent extra-indent) 2))))
+ ;; Outdent, this word is `endif' or `else': + 2
+ ((equal indent-type 'outdent)
+ (goto-char this-point)
+ (cond
+ ((looking-at "\\bendif\\b")
+ (+ cur-indent extra-indent 2))
+ ((looking-at "\\belse\\b")
+ (+ cur-indent extra-indent 2))))))))
+
+
+;;;---------------------------------------------------------------------------
+(defun dcl-calc-command-indent ()
+ "Calculate how much the current line shall be indented.
+The line is known to be a command line.
+
+Find the indentation of the preceding line and analyze its contents to
+see if the current lines should be indented.
+Analyze the current line to see if it should be `outdented'.
+
+Calculate the indentation of the current line, either with the default
+method or by calling dcl-calc-command-indent-function if it is
+non-nil.
+
+If the current line should be outdented, calculate its indentation,
+either with the default method or by calling
+dcl-calc-command-indent-function if it is non-nil.
+
+
+Rules for default indentation:
+
+If it is the first line in the buffer, indent dcl-margin-offset.
+
+Go to the previous command line with a command on it.
+Find out how much it is indented (cur-indent).
+Look at the first word on the line to see if the indentation should be
+adjusted. Skip margin-label, continuations and comments while looking for
+the first word. Save this buffer position as `last-point'.
+If the first word after a label is SUBROUTINE, set extra-indent to
+dcl-margin-offset.
+
+First word extra-indent
+THEN +dcl-basic-offset
+ELSE +dcl-basic-offset
+block-begin +dcl-basic-offset
+
+Then return to the current line and look at the first word to see if the
+indentation should be adjusted again. Save this buffer position as
+`this-point'.
+
+First word extra-indent
+ELSE -dcl-basic-offset
+ENDIF -dcl-basic-offset
+block-end -dcl-basic-offset
+
+
+If dcl-calc-command-indent-function is nil or returns nil set
+cur-indent to cur-indent+extra-indent.
+
+If an extra adjustment is necessary and if
+dcl-calc-command-indent-function is nil or returns nil set cur-indent
+to cur-indent+extra-indent.
+
+See also documentation for dcl-calc-command-indent-function.
+The indent-type classification could probably be expanded upon.
+"
+ ()
+ (save-excursion
+ (beginning-of-line)
+ (let ((is-block nil)
+ (case-fold-search t)
+ cur-indent
+ (extra-indent 0)
+ indent-type last-point this-point extra-indent2 cur-indent2
+ indent-type2)
+ (if (bobp) ; first line in buffer
+ (setq cur-indent 0 extra-indent dcl-margin-offset
+ indent-type 'first-line
+ this-point (dcl-indentation-point))
+ (save-excursion
+ (let (done)
+ ;; Find first non-empty command line
+ (while (not done)
+ ;; back up one statement and look at the command
+ (if (dcl-beginning-of-statement)
+ (cond
+ ((and dcl-block-begin-regexp ; might be nil
+ (looking-at (concat "^\\$" dcl-ws-r
+ dcl-block-begin-regexp)))
+ (setq done t) (setq is-block t))
+ ((and dcl-block-end-regexp ; might be nil
+ (looking-at (concat "^\\$" dcl-ws-r
+ dcl-block-end-regexp)))
+ (setq done t) (setq is-block t))
+ ((looking-at dcl-comment-line-regexp)
+ t) ; comment line, one more loop
+ ((looking-at "^\\$[ \t]*$")
+ t) ; empty line, one more loop
+ ((not (looking-at
+ (concat "^\\$" dcl-ws-r dcl-label-r dcl-ws-r "$")))
+ (setq done t))) ; not a label-only line, exit the loop
+ ;; We couldn't go further back, so this must have been the
+ ;; first line.
+ (setq cur-indent dcl-margin-offset
+ last-point (dcl-indentation-point))
+ (setq done t)))
+ ;; Examine the line to get current indentation and possibly a
+ ;; reason to indent.
+ (cond
+ (cur-indent)
+ ((looking-at (concat "^\\$[ \t]*" dcl-label-r dcl-ws-r
+ "\\(subroutine\\b\\)"))
+ (setq cur-indent dcl-margin-offset
+ last-point (1+ (match-beginning 1))))
+ (t
+ ;; Find out how much this line is indented.
+ ;; Look at comment, continuation character, command but not label
+ ;; unless it's a block.
+ (if is-block
+ (re-search-forward "^\\$[ \t]*")
+ (re-search-forward (concat "^\\$[ \t]*\\(" dcl-label-r
+ "\\)*[ \t]*")))
+ (setq cur-indent (current-column))
+ ;; Look for a reason to indent: Find first word on this line
+ (re-search-forward dcl-ws-r)
+ (setq last-point (point))
+ (cond
+ ((looking-at "\\bthen\\b")
+ (setq extra-indent dcl-basic-offset indent-type 'indent))
+ ((looking-at "\\belse\\b")
+ (setq extra-indent dcl-basic-offset indent-type 'indent))
+ ((and dcl-block-begin-regexp ; might be nil
+ (looking-at dcl-block-begin-regexp))
+ (setq extra-indent dcl-basic-offset indent-type 'indent))
+ ))))))
+ (setq extra-indent2 0)
+ ;; We're back at the beginning of the original line.
+ ;; Look for a reason to outdent: Find first word on this line
+ (re-search-forward (concat "^\\$" dcl-ws-r))
+ (setq this-point (dcl-indentation-point))
+ (cond
+ ((looking-at "\\belse\\b")
+ (setq extra-indent2 (- dcl-basic-offset) indent-type2 'outdent))
+ ((looking-at "\\bendif\\b")
+ (setq extra-indent2 (- dcl-basic-offset) indent-type2 'outdent))
+ ((and dcl-block-end-regexp ; might be nil
+ (looking-at dcl-block-end-regexp))
+ (setq extra-indent2 (- dcl-basic-offset) indent-type2 'outdent))
+ ((looking-at (concat dcl-label-r dcl-ws-r "\\(subroutine\\b\\)"))
+ (setq cur-indent2 0 extra-indent2 dcl-margin-offset
+ indent-type2 'first-line
+ this-point (1+ (match-beginning 1)))))
+ ;; Calculate indent
+ (setq cur-indent
+ (or (and dcl-calc-command-indent-function
+ (funcall dcl-calc-command-indent-function
+ indent-type cur-indent extra-indent
+ last-point this-point))
+ (+ cur-indent extra-indent)))
+ ;; Calculate outdent
+ (if indent-type2
+ (progn
+ (or cur-indent2 (setq cur-indent2 cur-indent))
+ (setq cur-indent
+ (or (and dcl-calc-command-indent-function
+ (funcall dcl-calc-command-indent-function
+ indent-type2 cur-indent2 extra-indent2
+ last-point this-point))
+ (+ cur-indent2 extra-indent2)))))
+ cur-indent
+ )))
+
+
+;;;---------------------------------------------------------------------------
+(defun dcl-calc-cont-indent-relative (cur-indent extra-indent)
+ "Indent continuation lines to align with words on previous line.
+
+Indent continuation lines to a position relative to preceding
+significant command line elements.
+
+Set `dcl-calc-cont-indent-function' to this function to customize
+indentation of continuation lines.
+
+Indented lines will align with either:
+
+* the second word on the command line
+ $ set default -
+ [-]
+* the word after an asignment
+ $ a = b + -
+ d
+* the third word if it's a qualifier
+ $ set terminal/width=80 -
+ /page=24
+* the innermost nonclosed parenthesis
+ $ if ((a.eq.b .and. -
+ d.eq.c .or. f$function(xxxx, -
+ yyy)))
+"
+ (let ((case-fold-search t)
+ indent)
+ (save-excursion
+ (dcl-beginning-of-statement)
+ (let ((end (save-excursion (forward-line 1) (point))))
+ ;; Move over blanks and label
+ (if (re-search-forward (concat "^\\$[ \t]*\\(" dcl-label-r
+ "\\)*[ \t]*") end t)
+ (progn
+ ;; Move over the first word (might be `@filespec')
+ (if (> (skip-chars-forward "@:[]<>$\\-a-zA-Z0-9_.;" end) 0)
+ (let (was-assignment)
+ (skip-chars-forward " \t" end)
+ ;; skip over assignment if there is one
+ (if (looking-at ":?==?")
+ (progn
+ (setq was-assignment t)
+ (skip-chars-forward " \t:=" end)))
+ ;; This could be the position to indent to
+ (setq indent (current-column))
+
+ ;; Move to the next word unless we have seen an
+ ;; assignment. If it starts with `/' it's a
+ ;; qualifier and we will indent to that position
+ (if (and (not was-assignment)
+ (> (skip-chars-forward "a-zA-Z0-9_" end) 0))
+ (progn
+ (skip-chars-forward " \t" end)
+ (if (= (char-after (point)) ?/)
+ (setq indent (current-column)))))
+ ))))))
+ ;; Now check if there are any parenthesis to adjust to.
+ ;; If there is, we will indent to the position after the last non-closed
+ ;; opening parenthesis.
+ (save-excursion
+ (beginning-of-line)
+ (let* ((start (save-excursion (dcl-beginning-of-statement) (point)))
+ (parse-sexp-ignore-comments t) ; for parse-partial
+ (par-pos (nth 1 (parse-partial-sexp start (point)))))
+ (if par-pos ; is nil if no parenthesis was found
+ (setq indent (save-excursion
+ (goto-char par-pos)
+ (1+ (current-column)))))))
+ indent))
+
+
+;;;---------------------------------------------------------------------------
+(defun dcl-calc-continuation-indent ()
+ "Calculate how much the current line shall be indented.
+The line is known to be a continuation line.
+
+Go to the previous command line.
+Find out how much it is indented."
+;; This was copied without much thought from dcl-calc-command-indent, so
+;; it's a bit clumsy.
+ ()
+ (save-excursion
+ (beginning-of-line)
+ (if (bobp)
+ ;; Huh? a continuation line first in the buffer??
+ dcl-margin-offset
+ (let ((is-block nil)
+ (indent))
+ (save-excursion
+ ;; Find first non-empty command line
+ (let ((done))
+ (while (not done)
+ (if (dcl-beginning-of-statement)
+ (cond
+ ((and dcl-block-begin-regexp
+ (looking-at (concat "^\\$" dcl-ws-r
+ dcl-block-begin-regexp)))
+ (setq done t) (setq is-block t))
+ ((and dcl-block-end-regexp
+ (looking-at (concat "^\\$" dcl-ws-r
+ dcl-block-end-regexp)))
+ (setq done t) (setq is-block t))
+ ((looking-at dcl-comment-line-regexp)
+ t)
+ ((looking-at "^\\$[ \t]*$")
+ t)
+ ((not (looking-at
+ (concat "^\\$" dcl-ws-r dcl-label-r dcl-ws-r "$")))
+ (setq done t)))
+ ;; This must have been the first line.
+ (setq indent dcl-margin-offset)
+ (setq done t)))
+ (if indent
+ ()
+ ;; Find out how much this line is indented.
+ ;; Look at comment, continuation character, command but not label
+ ;; unless it's a block.
+ (if is-block
+ (re-search-forward "^\\$[ \t]*")
+ (re-search-forward (concat "^\\$[ \t]*\\(" dcl-label-r
+ "\\)*[ \t]*")))
+ (setq indent (current-column))
+ )))
+ ;; We're back at the beginning of the original line.
+ (or (and dcl-calc-cont-indent-function
+ (funcall dcl-calc-cont-indent-function indent
+ dcl-continuation-offset))
+ (+ indent dcl-continuation-offset))
+ ))))
+
+
+;;;---------------------------------------------------------------------------
+(defun dcl-indent-command-line ()
+ "Indent a line known to be a command line."
+ (let ((indent (dcl-calc-command-indent))
+ (pos (- (point-max) (point))))
+ (save-excursion
+ (beginning-of-line)
+ (re-search-forward "^\\$[ \t]*")
+ ;; Indent any margin-label if the offset is set
+ ;; (Don't look at block labels)
+ (if (and dcl-margin-label-offset
+ (looking-at dcl-label-r)
+ (not (and dcl-block-begin-regexp
+ (looking-at dcl-block-begin-regexp)))
+ (not (and dcl-block-end-regexp
+ (looking-at dcl-block-end-regexp))))
+ (progn
+ (dcl-indent-to dcl-margin-label-offset)
+ (re-search-forward dcl-label-r)))
+ (dcl-indent-to indent 1)
+ )
+ ;;
+ (if (> (- (point-max) pos) (point))
+ (goto-char (- (point-max) pos)))
+ ))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-indent-continuation-line ()
+ "Indent a line known to be a continuation line.
+
+Notice that no special treatment is made for labels. They have to be
+on the first part on a command line to be taken into consideration."
+ (let ((indent (dcl-calc-continuation-indent)))
+ (save-excursion
+ (beginning-of-line)
+ (re-search-forward "^[ \t]*")
+ (dcl-indent-to indent))
+ (skip-chars-forward " \t")))
+
+
+;;;---------------------------------------------------------------------------
+(defun dcl-delete-chars (chars)
+ "Delete all characters in the set CHARS around point."
+ (skip-chars-backward chars)
+ (delete-region (point) (progn (skip-chars-forward chars) (point))))
+
+
+;;;---------------------------------------------------------------------------
+(defun dcl-indent-line ()
+ "The DCL version of `indent-line-function'.
+Adjusts indentation on the current line. Data lines are not indented."
+ (let ((type (dcl-get-line-type)))
+ (cond
+ ((equal type '$)
+ (dcl-indent-command-line))
+ ((equal type '\?)
+ (message "Unknown line type!"))
+ ((equal type '$!))
+ ((equal type 'data))
+ ((equal type 'empty-data))
+ ((equal type '-)
+ (dcl-indent-continuation-line))
+ ((equal type 'empty-$)
+ (insert "$" )
+ (dcl-indent-command-line))
+ (t
+ (message "dcl-indent-line: unknown type"))
+ )))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-indent-command ()
+ "Indents the complete command line that point is on.
+This includes continuation lines."
+ (interactive "*")
+ (let ((type (dcl-get-line-type)))
+ (if (or (equal type '$)
+ (equal type '-)
+ (equal type 'empty-$))
+ (save-excursion
+ (indent-region (progn (or (looking-at "^\\$")
+ (dcl-beginning-of-statement))
+ (point))
+ (progn (dcl-end-of-statement) (point))
+ nil)))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-tab ()
+ "Insert tab in data lines or indent code.
+If `dcl-tab-always-indent' is t, code lines are always indented.
+If nil, indent the current line only if point is at the left margin or in
+the lines indentation; otherwise insert a tab."
+ (interactive "*")
+ (let ((type (dcl-get-line-type))
+ (start-point (point)))
+ (cond
+ ;; Data line : always insert tab
+ ((or (equal type 'data) (equal type 'empty-data))
+ (tab-to-tab-stop))
+ ;; Indent only at start of line
+ ((not dcl-tab-always-indent) ; nil
+ (let ((search-end-point
+ (save-excursion
+ (beginning-of-line)
+ (re-search-forward "^\\$?[ \t]*" start-point t))))
+ (if (or (bolp)
+ (and search-end-point
+ (>= search-end-point start-point)))
+ (dcl-indent-line)
+ (tab-to-tab-stop))))
+ ;; Always indent
+ ((eq dcl-tab-always-indent t) ; t
+ (dcl-indent-line))
+ )))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-electric-character (arg)
+ "Inserts a character and indents if necessary.
+Insert a character if the user gave a numeric argument or the flag
+`dcl-electric-characters' is not set. If an argument was given,
+insert that many characters.
+
+The line is only reindented if the word just typed matches any of the
+regexps in `dcl-electric-reindent-regexps'."
+ (interactive "*P")
+ (if (or arg (not dcl-electric-characters))
+ (if arg
+ (self-insert-command (prefix-numeric-value arg))
+ (self-insert-command 1))
+ ;; Insert the character and indent
+ (self-insert-command 1)
+ (let ((case-fold-search t))
+ ;; There must be a better way than (memq t ...).
+ ;; (apply 'or ...) didn't work
+ (if (memq t (mapcar 'dcl-was-looking-at dcl-electric-reindent-regexps))
+ (dcl-indent-line)))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-indent-to (col &optional minimum)
+ "Like indent-to, but only indents if indentation would change"
+ (interactive)
+ (let (cur-indent collapsed indent)
+ (save-excursion
+ (skip-chars-forward " \t")
+ (setq cur-indent (current-column))
+ (skip-chars-backward " \t")
+ (setq collapsed (current-column)))
+ (setq indent (max col (+ collapsed (or minimum 0))))
+ (if (/= indent cur-indent)
+ (progn
+ (dcl-delete-chars " \t")
+ (indent-to col minimum)))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-split-line ()
+ "Break line at point and insert text to keep the syntax valid.
+
+Inserts continuation marks and splits character strings."
+ ;; Still don't know what to do with comments at the end of a command line.
+ (interactive "*")
+ (let (done
+ (type (dcl-get-line-type)))
+ (cond
+ ((or (equal type '$) (equal type '-))
+ (let ((info (parse-partial-sexp
+ (save-excursion (dcl-beginning-of-statement) (point))
+ (point))))
+ ;; handle some special cases
+ (cond
+ ((nth 3 info) ; in text constant
+ (insert "\" + -\n\"")
+ (indent-according-to-mode)
+ (setq done t))
+ ((not (nth 4 info)) ; not in comment
+ (cond
+ ((and (not (eolp))
+ (= (char-after (point)) ?\")
+ (= (char-after (1- (point))) ?\"))
+ (progn ; a " "" " situation
+ (forward-char -1)
+ (insert "\" + -\n\"")
+ (forward-char 1)
+ (indent-according-to-mode)
+ (setq done t)))
+ ((and (dcl-was-looking-at "[ \t]*-[ \t]*") ; after cont mark
+ (looking-at "[ \t]*\\(!.*\\)?$"))
+ ;; Do default below. This might considered wrong if we're
+ ;; after a subtraction: $ x = 3 - <M-LFD>
+ )
+ (t
+ (delete-horizontal-space)
+ (insert " -")
+ (insert "\n") (indent-according-to-mode)
+ (setq done t))))
+ ))))
+ ;; use the normal function for other cases
+ (if (not done) ; normal M-LFD action
+ (indent-new-comment-line))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-delete-indentation (&optional arg)
+ "Join this line to previous like delete-indentation.
+Also remove the continuation mark if easily detected."
+ (interactive "*P")
+ (delete-indentation arg)
+ (let ((type (dcl-get-line-type)))
+ (if (and (or (equal type '$)
+ (equal type '-)
+ (equal type 'empty-$))
+ (not (bobp))
+ (= (char-after (1- (point))) ?-))
+ (progn
+ (delete-backward-char 1)
+ (fixup-whitespace)))))
+
+
+;;; *** Set options *********************************************************
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-option-value-basic (option-assoc)
+ "Guess a value for basic-offset."
+ (save-excursion
+ (dcl-beginning-of-command)
+ (let* (;; current lines indentation
+ (this-indent (save-excursion
+ (dcl-back-to-indentation)
+ (current-column)))
+ ;; previous lines indentation
+ (prev-indent (save-excursion
+ (if (dcl-backward-command)
+ (progn
+ (dcl-back-to-indentation)
+ (current-column)))))
+ (next-indent (save-excursion
+ (dcl-end-of-command)
+ (if (dcl-forward-command)
+ (progn
+ (dcl-beginning-of-command)
+ (dcl-back-to-indentation)
+ (current-column)))))
+ (diff (if prev-indent
+ (abs (- this-indent prev-indent)))))
+ (cond
+ ((and diff
+ (/= diff 0))
+ diff)
+ ((and next-indent
+ (/= (- this-indent next-indent) 0))
+ (abs (- this-indent next-indent)))
+ (t
+ dcl-basic-offset)))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-option-value-offset (option-assoc)
+ "Guess a value for an offset.
+Find the column of the first non-blank character on the line.
+Returns a number as a string."
+ (save-excursion
+ (beginning-of-line)
+ (re-search-forward "^$[ \t]*" nil t)
+ (current-column)))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-option-value-margin-offset (option-assoc)
+ "Guess a value for margin offset.
+Find the column of the first non-blank character on the line, not
+counting labels.
+Returns a number as a string."
+ (save-excursion
+ (beginning-of-line)
+ (dcl-back-to-indentation)
+ (current-column)))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-option-value-comment-line (option-assoc)
+ "Guess a value for `dcl-comment-line-regexp'.
+Must return a string."
+ ;; Should we set comment-start and comment-start-skip as well?
+ ;; If someone wants `$!&' as a comment line, C-M-j won't work well if
+ ;; they aren't set.
+ ;; This must be done after the user has given the real value in
+ ;; dcl-set-option.
+ (format
+ "%S"
+ (save-excursion
+ (beginning-of-line)
+ ;; We could search for "^\\$.*!+[^ \t]*", but, as noted above, we
+ ;; can't handle that case very good, so there is no point in
+ ;; suggesting it.
+ (if (looking-at "^\\$[^!\n]*!")
+ (let ((regexp (buffer-substring (match-beginning 0) (match-end 0))))
+ (concat "^" (regexp-quote regexp)))
+ dcl-comment-line-regexp))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-guess-option-value (option)
+ "Guess what value the user would like to give the symbol option."
+ (let* ((option-assoc (assoc option dcl-option-alist))
+ (option (car option-assoc))
+ (action (car (cdr option-assoc)))
+ (value (cond
+ ((fboundp action)
+ (funcall action option-assoc))
+ ((eq action 'toggle)
+ (not (eval option)))
+ ((eq action 'curval)
+ (cond ((or (stringp (symbol-value option))
+ (numberp (symbol-value option)))
+ (format "%S" (symbol-value option)))
+ (t
+ (format "'%S" (symbol-value option))))))))
+ ;; format the value as a string if not already done
+ (if (stringp value)
+ value
+ (format "%S" value))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-guess-option ()
+ "Guess what option the user wants to set by looking around in the code.
+Returns the name of the option variable as a string."
+ (let ((case-fold-search t))
+ (cond
+ ;; Continued line
+ ((eq (dcl-get-line-type) '-)
+ "dcl-calc-cont-indent-function")
+ ;; Comment line
+ ((save-excursion
+ (beginning-of-line)
+ (looking-at "^\\$[ \t]*!"))
+ "dcl-comment-line-regexp")
+ ;; Margin offset: subroutine statement or first line in buffer
+ ;; Test this before label indentation to detect a subroutine
+ ((save-excursion
+ (beginning-of-line)
+ (or (looking-at (concat "^\\$[ \t]*" dcl-label-r dcl-ws-r
+ "subroutine"))
+ (save-excursion
+ (not (dcl-backward-command t)))))
+ "dcl-margin-offset")
+ ;; Margin offset: on command line after subroutine statement
+ ((save-excursion
+ (beginning-of-line)
+ (and (eq (dcl-get-line-type) '$)
+ (dcl-backward-command)
+ (looking-at (concat "^\\$[ \t]*" dcl-label-r dcl-ws-r
+ "subroutine"))))
+ "dcl-margin-offset")
+ ;; Label indentation
+ ((save-excursion
+ (beginning-of-line)
+ (and (looking-at (concat "^\\$[ \t]*" dcl-label-r))
+ (not (and dcl-block-begin-regexp
+ (looking-at (concat "^\\$[ \t]*"
+ dcl-block-begin-regexp))))
+ (not (and dcl-block-end-regexp
+ (looking-at (concat "^\\$[ \t]*"
+ dcl-block-end-regexp))))))
+ "dcl-margin-label-offset")
+ ;; Basic offset
+ ((and (eq (dcl-get-line-type) '$) ; beginning of command
+ (save-excursion
+ (beginning-of-line)
+ (let* ((this-indent (save-excursion
+ (dcl-back-to-indentation)
+ (current-column)))
+ (prev-indent (save-excursion
+ (if (dcl-backward-command)
+ (progn
+ (dcl-back-to-indentation)
+ (current-column)))))
+ (next-indent (save-excursion
+ (dcl-end-of-command)
+ (if (dcl-forward-command)
+ (progn
+ (dcl-beginning-of-command)
+ (dcl-back-to-indentation)
+ (current-column))))))
+ (or (and prev-indent ; last cmd is indented differently
+ (/= (- this-indent prev-indent) 0))
+ (and next-indent
+ (/= (- this-indent next-indent) 0))))))
+ "dcl-basic-offset")
+ ;; No more guesses.
+ (t
+ ""))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-set-option (option-sym option-value)
+ "Set a value for one of the dcl customization variables.
+The function tries to guess which variable should be set and to what value.
+All variable names are available as completions and in the history list."
+ (interactive
+ (let* ((option-sym
+ (intern (completing-read
+ "Set DCL option: " ; prompt
+ (mapcar (function ; alist of valid values
+ (lambda (option-assoc)
+ (cons (format "%s" (car option-assoc)) nil)))
+ dcl-option-alist)
+ nil ; no predicate
+ t ; only value from the list OK
+ (dcl-guess-option) ; initial (default) value
+ 'dcl-option-history))) ; history list
+ (option-value
+ (eval-minibuffer
+ (format "Set DCL option %s to: " option-sym)
+ (dcl-guess-option-value option-sym))))
+ (list option-sym option-value)))
+ ;; Should make a sanity check on the symbol/value pair.
+ ;; `set' instead of `setq' because we want option-sym to be evaluated.
+ (set option-sym option-value))
+
+
+;;; *** Save options ********************************************************
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-save-local-variable (var &optional def-prefix def-suffix)
+ "Save a variable in a `Local Variables' list.
+Set or update the value of VAR in the current buffers
+`Local Variables:' list."
+ ;; Look for "Local variables:" line in last page.
+ (save-excursion
+ (goto-char (point-max))
+ (search-backward "\n\^L" (max (- (point-max) 3000) (point-min)) 'move)
+ (if (let ((case-fold-search t))
+ (search-forward "Local Variables:" nil t))
+ (let ((continue t)
+ prefix prefixlen suffix beg
+ prefix-string suffix-string)
+ ;; The prefix is what comes before "local variables:" in its line.
+ ;; The suffix is what comes after "local variables:" in its line.
+ (skip-chars-forward " \t")
+ (or (eolp)
+ (setq suffix-string (buffer-substring (point)
+ (progn (end-of-line) (point)))))
+ (goto-char (match-beginning 0))
+ (or (bolp)
+ (setq prefix-string
+ (buffer-substring (point)
+ (progn (beginning-of-line) (point)))))
+
+ (if prefix-string (setq prefixlen (length prefix-string)
+ prefix (regexp-quote prefix-string)))
+ (if suffix-string (setq suffix (concat (regexp-quote suffix-string)
+ "$")))
+ (while continue
+ ;; Look at next local variable spec.
+ (if selective-display (re-search-forward "[\n\C-m]")
+ (forward-line 1))
+ ;; Skip the prefix, if any.
+ (if prefix
+ (if (looking-at prefix)
+ (forward-char prefixlen)
+ (error "Local variables entry is missing the prefix")))
+ ;; Find the variable name; strip whitespace.
+ (skip-chars-forward " \t")
+ (setq beg (point))
+ (skip-chars-forward "^:\n")
+ (if (eolp) (error "Missing colon in local variables entry"))
+ (skip-chars-backward " \t")
+ (let* ((str (buffer-substring beg (point)))
+ (found-var (read str))
+ val)
+ ;; Setting variable named "end" means end of list.
+ (if (string-equal (downcase str) "end")
+ (progn
+ ;; Not found. Insert a new entry before this line
+ (setq continue nil)
+ (beginning-of-line)
+ (insert (concat prefix-string (symbol-name var) ": "
+ (prin1-to-string (eval var)) " "
+ suffix-string "\n")))
+ ;; Is it the variable we are looking for?
+ (if (eq var found-var)
+ (progn
+ ;; Found it: delete the variable value and insert the
+ ;; new value.
+ (setq continue nil)
+ (skip-chars-forward "^:")
+ (forward-char 1)
+ (delete-region (point) (progn (read (current-buffer))
+ (point)))
+ (insert " ")
+ (prin1 (eval var) (current-buffer))
+ (skip-chars-backward "\n")
+ (skip-chars-forward " \t")
+ (or (if suffix (looking-at suffix) (eolp))
+ (error
+ "Local variables entry is terminated incorrectly")))
+ (end-of-line))))))
+ ;; Did not find "Local variables:"
+ (goto-char (point-max))
+ (if (not (bolp))
+ (insert "\n"))
+ ;; If def- parameter not set, use comment- if set. In that case, make
+ ;; sure there is a space in a suitable position
+ (let ((def-prefix
+ (cond
+ (def-prefix
+ def-prefix)
+ (comment-start
+ (if (or (equal comment-start "")
+ (string-match "[ \t]$" comment-start))
+ comment-start
+ (concat comment-start " ")))))
+ (def-suffix
+ (cond
+ (def-suffix
+ def-suffix)
+ (comment-end
+ (if (or (equal comment-end "")
+ (string-match "^[ \t]" comment-end))
+ comment-end
+ (concat " " comment-end))))))
+ (insert (concat def-prefix "Local variables:" def-suffix "\n"))
+ (insert (concat def-prefix (symbol-name var) ": "
+ (prin1-to-string (eval var)) def-suffix "\n"))
+ (insert (concat def-prefix "end:" def-suffix)))
+ )))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-save-all-options ()
+ "Save all dcl-mode options for this buffer.
+Saves or updates all dcl-mode related options in a `Local Variables:'
+section at the end of the current buffer."
+ (interactive "*")
+ (mapcar (lambda (option-assoc)
+ (let* ((option (car option-assoc)))
+ (dcl-save-local-variable option "$! ")))
+ dcl-option-alist))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-save-nondefault-options ()
+ "Save changed DCL mode options for this buffer.
+Saves or updates all DCL mode related options that don't have their
+default values in a `Local Variables:' section at the end of the
+current buffer.
+
+No entries are removed from the `Local Variables:' section. This means
+that if a variable is given a non-default value in the section and
+later is manually reset to its default value, the variable's entry will
+still be present in the `Local Variables:' section with its old value."
+ (interactive "*")
+ (mapcar (lambda (option-assoc)
+ (let* ((option (car option-assoc))
+ (option-name (symbol-name option)))
+ (if (and (string-equal "dcl-"
+ (substring option-name 0 4))
+ (not (equal (default-value option) (eval option))))
+ (dcl-save-local-variable option "$! "))))
+ dcl-option-alist))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-save-option (option)
+ "Save a DCL mode option for this buffer.
+Saves or updates an option in a `Local Variables:'
+section at the end of the current buffer."
+ (interactive
+ (let ((option (intern (completing-read "Option: " obarray))))
+ (list option)))
+ (dcl-save-local-variable option))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-save-mode ()
+ "Save the current mode for this buffer.
+Save the current mode in a `Local Variables:'
+section at the end of the current buffer."
+ (interactive)
+ (let ((mode (prin1-to-string major-mode)))
+ (if (string-match "-mode$" mode)
+ (let ((mode (intern (substring mode 0 (match-beginning 0)))))
+ (dcl-save-option 'mode))
+ (message "Strange mode: %s" mode))))
+
+
+;;; *** Templates ***********************************************************
+;; tempo seems to be the only suitable package among those included in
+;; standard Emacs. I would have liked something closer to the functionality
+;; of LSE templates...
+
+
+(require 'tempo)
+(defvar dcl-tempo-tags nil
+ "Tempo tags for DCL mode.")
+
+(tempo-define-template "dcl-f$context"
+ '("f$context" dcl-tempo-left-paren
+ (p "context-type: ") dcl-tempo-comma
+ (p "context-symbol: ") dcl-tempo-comma
+ (p "selection-item: ") dcl-tempo-comma
+ (p "selection-value: ") dcl-tempo-comma
+ (p "value-qualifier: ") dcl-tempo-right-paren)
+ "f$context" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$csid"
+ '("f$csid" dcl-tempo-left-paren
+ (p "context-symbol: ") dcl-tempo-right-paren)
+ "f$csid" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$cvsi"
+ '("f$cvsi" dcl-tempo-left-paren
+ (p "start-bit: ") dcl-tempo-comma
+ (p "number-of-bits: ") dcl-tempo-comma
+ (p "string: ") dcl-tempo-right-paren)
+ "f$cvsi" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$cvtime"
+ '("f$cvtime" dcl-tempo-left-paren
+ (p "[input_time]: ") dcl-tempo-comma
+ (p "[output_time_format]: ") dcl-tempo-comma
+ (p "[output_field]: ") dcl-tempo-right-paren)
+ "f$cvtime" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$cvui"
+ '("f$cvui" dcl-tempo-left-paren
+ (p "start-bit: ") dcl-tempo-comma
+ (p "number-of-bits: ") dcl-tempo-comma
+ (p "string") dcl-tempo-right-paren)
+ "f$cvui" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$device"
+ '("f$device" dcl-tempo-left-paren
+ (p "[search_devnam]: ") dcl-tempo-comma
+ (p "[devclass]: ") dcl-tempo-comma
+ (p "[devtype]: ") dcl-tempo-comma
+ (p "[stream-id]: ") dcl-tempo-right-paren)
+ "f$device" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$directory"
+ '("f$directory" dcl-tempo-left-paren
+ dcl-tempo-right-paren)
+ "f$directory" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$edit"
+ '("f$edit" dcl-tempo-left-paren
+ (p "string: ") dcl-tempo-comma
+ (p "edit-list: ") dcl-tempo-right-paren)
+ "f$edit" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$element"
+ '("f$element" dcl-tempo-left-paren
+ (p "element-number: ") dcl-tempo-comma
+ (p "delimiter: ") dcl-tempo-comma
+ (p "string: ") dcl-tempo-right-paren)
+ "f$element" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$environment"
+ '("f$environment" dcl-tempo-left-paren
+ (p "item: ") dcl-tempo-right-paren)
+ "f$environment" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$extract"
+ '("f$extract" dcl-tempo-left-paren
+ (p "start: ") dcl-tempo-comma
+ (p "length: ") dcl-tempo-comma
+ (p "string: ") dcl-tempo-right-paren)
+ "f$extract" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$fao"
+ '("f$fao" dcl-tempo-left-paren
+ (p "control-string: ") dcl-tempo-comma
+ ("argument[,...]: ") dcl-tempo-right-paren)
+ "f$fao" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$file_attributes"
+ '("f$file_attributes" dcl-tempo-left-paren
+ (p "filespec: ") dcl-tempo-comma
+ (p "item: ") dcl-tempo-right-paren)
+ "f$file_attributes" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$getdvi"
+ '("f$getdvi" dcl-tempo-left-paren
+ (p "device-name: ") dcl-tempo-comma
+ (p "item: ") dcl-tempo-right-paren)
+ "f$getdvi" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$getjpi"
+ '("f$getjpi" dcl-tempo-left-paren
+ (p "pid: ") dcl-tempo-comma
+ (p "item: ") dcl-tempo-right-paren )
+ "f$getjpi" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$getqui"
+ '("f$getqui" dcl-tempo-left-paren
+ (p "function: ") dcl-tempo-comma
+ (p "[item]: ") dcl-tempo-comma
+ (p "[object-id]: ") dcl-tempo-comma
+ (p "[flags]: ") dcl-tempo-right-paren)
+ "f$getqui" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$getsyi"
+ '("f$getsyi" dcl-tempo-left-paren
+ (p "item: ") dcl-tempo-comma
+ (p "[node-name]: ") dcl-tempo-comma
+ (p "[cluster-id]: ") dcl-tempo-right-paren)
+ "f$getsyi" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$identifier"
+ '("f$identifier" dcl-tempo-left-paren
+ (p "identifier: ") dcl-tempo-comma
+ (p "conversion-type: ") dcl-tempo-right-paren)
+ "f$identifier" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$integer"
+ '("f$integer" dcl-tempo-left-paren
+ (p "expression: ") dcl-tempo-right-paren)
+ "f$integer" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$length"
+ '("f$length" dcl-tempo-left-paren
+ (p "string: ") dcl-tempo-right-paren )
+ "f$length" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$locate"
+ '("f$locate" dcl-tempo-left-paren
+ (p "substring: ") dcl-tempo-comma
+ (p "string: ") dcl-tempo-right-paren)
+ "f$locate" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$message"
+ '("f$message" dcl-tempo-left-paren
+ (p "status-code: ") dcl-tempo-right-paren )
+ "f$message" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$mode"
+ '("f$mode" dcl-tempo-left-paren dcl-tempo-right-paren)
+ "f$mode" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$parse"
+ '("f$parse" dcl-tempo-left-paren
+ (p "filespec: ") dcl-tempo-comma
+ (p "[default-spec]: ") dcl-tempo-comma
+ (p "[related-spec]: ") dcl-tempo-comma
+ (p "[field]: ") dcl-tempo-comma
+ (p "[parse-type]: ") dcl-tempo-right-paren)
+ "f$parse" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$pid"
+ '("f$pid" dcl-tempo-left-paren
+ (p "context-symbol: ") dcl-tempo-right-paren)
+ "f$pid" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$privilege"
+ '("f$privilege" dcl-tempo-left-paren
+ (p "priv-states: ") dcl-tempo-right-paren)
+ "f$privilege" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$process"
+ '("f$process()")
+ "f$process" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$search"
+ '("f$search" dcl-tempo-left-paren
+ (p "filespec: ") dcl-tempo-comma
+ (p "[stream-id]: ") dcl-tempo-right-paren)
+ "f$search" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$setprv"
+ '("f$setprv" dcl-tempo-left-paren
+ (p "priv-states: ") dcl-tempo-right-paren)
+ "f$setprv" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$string"
+ '("f$string" dcl-tempo-left-paren
+ (p "expression: ") dcl-tempo-right-paren)
+ "f$string" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$time"
+ '("f$time" dcl-tempo-left-paren dcl-tempo-right-paren)
+ "f$time" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$trnlnm"
+ '("f$trnlnm" dcl-tempo-left-paren
+ (p "logical-name: ") dcl-tempo-comma
+ (p "[table]: ") dcl-tempo-comma
+ (p "[index]: ") dcl-tempo-comma
+ (p "[mode]: ") dcl-tempo-comma
+ (p "[case]: ") dcl-tempo-comma
+ (p "[item]: ") dcl-tempo-right-paren)
+ "f$trnlnm" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$type"
+ '("f$type" dcl-tempo-left-paren
+ (p "symbol-name: ") dcl-tempo-right-paren)
+ "f$type" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$user"
+ '("f$user" dcl-tempo-left-paren dcl-tempo-right-paren)
+ "f$user" "" 'dcl-tempo-tags)
+
+(tempo-define-template "dcl-f$verify"
+ '("f$verify" dcl-tempo-left-paren
+ (p "[procedure-value]: ") dcl-tempo-comma
+ (p "[image-value]: ") dcl-tempo-right-paren)
+ "f$verify" "" 'dcl-tempo-tags)
+
+
+
+
+;;; *** Unsorted stuff *****************************************************
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-beginning-of-command-p ()
+ "Return t if point is at the beginning of a command.
+Otherwise return nil."
+ (and (bolp)
+ (eq (dcl-get-line-type) '$)))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-end-of-command-p ()
+ "Check if point is at the end of a command.
+Return t if point is at the end of a command, either the end of an
+only line or at the end of the last continuation line.
+Otherwise return nil."
+ ;; Must be at end-of-line on a command line or a continuation line
+ (let ((type (dcl-get-line-type)))
+ (if (and (eolp)
+ (or (eq type '$)
+ (eq type '-)))
+ ;; Next line must not be a continuation line
+ (save-excursion
+ (forward-line)
+ (not (eq (dcl-get-line-type) '-))))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-command-p ()
+ "Check if point is on a command line.
+Return t if point is on a command line or a continuation line,
+otherwise return nil."
+ (let ((type (dcl-get-line-type)))
+ (or (eq type '$)
+ (eq type '-))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-was-looking-at (regexp)
+ (save-excursion
+ (let ((start (point))
+ (found (re-search-backward regexp 0 t)))
+ (if (not found)
+ ()
+ (equal start (match-end 0))))))
+
+
+;;;-------------------------------------------------------------------------
+(defun dcl-imenu-create-index-function ()
+ "Jacket routine to make imenu searches non case sensitive."
+ (let ((case-fold-search t))
+ (imenu-default-create-index-function)))
+
+
+
+;;; *** Epilogue ************************************************************
+
+
+(provide 'dcl-mode)
+
+(run-hooks 'dcl-mode-load-hook) ; for your customizations
+
+;;; dcl-mode.el ends here
projects / emacs.git / commitdiff