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+;;; ada-stmt.el --- an extension to Ada mode for inserting statement templates
+
+;; Copyright (C) 1987, 1993-1994, 1996-2019 Free Software Foundation,
+;; Inc.
+
+;; Authors: Daniel Pfeiffer
+;; Markus Heritsch
+;; Rolf Ebert <[email protected]>
+;; Maintainer: Stephen Leake <[email protected]>
+;; Keywords: languages, ada
+;; Package: ada-mode
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;; This file is now automatically loaded from ada-mode.el, and creates a submenu
+;; in Ada/ on the menu bar.
+
+;;; History:
+
+;; Created May 1987.
+;; Original version from V. Bowman as in ada.el of Emacs-18
+;; (borrowed heavily from Mick Jordan's Modula-2 package for GNU,
+;; as modified by Peter Robinson, Michael Schmidt, and Tom Perrine.)
+;;
+;; Sep 1993. Daniel Pfeiffer <[email protected]> (DP)
+;; Introduced statement.el for smaller code and user configurability.
+;;
+;; Nov 1993. Rolf Ebert <[email protected]> (RE) Moved the
+;; skeleton generation into this separate file. The code still is
+;; essentially written by DP
+;;
+;; Adapted Jun 1994. Markus Heritsch
+;; added menu bar support for templates
+;;
+;; 1994/12/02 Christian Egli <[email protected]>
+;; General cleanup and bug fixes.
+;;
+;; 1995/12/20 John Hutchison <[email protected]>
+;; made it work with skeleton.el from Emacs-19.30. Several
+;; enhancements and bug fixes.
+
+;; BUGS:
+;;;> I have the following suggestions for the function template: 1) I
+;;;> don't want it automatically assigning it a name for the return variable. I
+;;;> never want it to be called "Result" because that is nondescript. If you
+;;;> must define a variable, give me the ability to specify its name.
+;;;>
+;;;> 2) You do not provide a type for variable 'Result'. Its type is the same
+;;;> as the function's return type, which the template knows, so why force me
+;;;> to type it in?
+;;;>
+
+;;;It would be nice if one could configure such layout details separately
+;;;without patching the LISP code. Maybe the metalanguage used in ada-stmt.el
+;;;could be taken even further, providing the user with some nice syntax
+;;;for describing layout. Then my own hacks would survive the next
+;;;update of the package :-)
+
+
+;;; Code:
+
+(require 'skeleton nil t)
+(require 'easymenu)
+(require 'ada-mode)
+
+(defun ada-func-or-proc-name ()
+ "Return the name of the current function or procedure."
+ (save-excursion
+ (let ((case-fold-search t))
+ (if (re-search-backward ada-procedure-start-regexp nil t)
+ (match-string 5)
+ "NAME?"))))
+
+;;; ---- statement skeletons ------------------------------------------
+
+(define-skeleton ada-array
+ "Insert array type definition.
+Prompt for component type and index subtypes."
+ ()
+ "array (" ("index definition: " str ", " ) -2 ") of " _ ?\;)
+
+
+(define-skeleton ada-case
+ "Build skeleton case statement.
+Prompt for the selector expression. Also builds the first when clause."
+ "[selector expression]: "
+ "case " str " is" \n
+ > "when " ("discrete choice: " str " | ") -3 " =>" \n
+ > _ \n
+ < < "end case;")
+
+
+(define-skeleton ada-when
+ "Start a case statement alternative with a when clause."
+ ()
+ < "when " ("discrete choice: " str " | ") -3 " =>" \n
+ >)
+
+
+(define-skeleton ada-declare-block
+ "Insert a block with a declare part.
+Indent for the first declaration."
+ "[block name]: "
+ < str & ?: & \n
+ > "declare" \n
+ > _ \n
+ < "begin" \n
+ > \n
+ < "end " str | -1 ?\;)
+
+
+(define-skeleton ada-exception-block
+ "Insert a block with an exception part.
+Indent for the first line of code."
+ "[block name]: "
+ < str & ?: & \n
+ > "begin" \n
+ > _ \n
+ < "exception" \n
+ > \n
+ < "end " str | -1 ?\;)
+
+
+(define-skeleton ada-exception
+ "Insert an indented exception part into a block."
+ ()
+ < "exception" \n
+ >)
+
+
+(define-skeleton ada-exit-1
+ "Insert then exit condition of the exit statement, prompting for condition."
+ "[exit condition]: "
+ "when " str | -5)
+
+
+(define-skeleton ada-exit
+ "Insert an exit statement, prompting for loop name and condition."
+ "[name of loop to exit]: "
+ "exit " str & ?\ (ada-exit-1) | -1 ?\;)
+
+;;;###autoload
+(defun ada-header ()
+ "Insert a descriptive header at the top of the file."
+ (interactive "*")
+ (save-excursion
+ (goto-char (point-min))
+ (if (fboundp 'make-header)
+ (funcall (symbol-function 'make-header))
+ (ada-header-tmpl))))
+
+
+(define-skeleton ada-header-tmpl
+ "Insert a comment block containing the module title, author, etc."
+ "[Description]: "
+ "-- -*- Mode: Ada -*-"
+ "\n" ada-fill-comment-prefix "Filename : " (buffer-name)
+ "\n" ada-fill-comment-prefix "Description : " str
+ "\n" ada-fill-comment-prefix "Author : " (user-full-name)
+ "\n" ada-fill-comment-prefix "Created On : " (current-time-string)
+ "\n" ada-fill-comment-prefix "Last Modified By: ."
+ "\n" ada-fill-comment-prefix "Last Modified On: ."
+ "\n" ada-fill-comment-prefix "Update Count : 0"
+ "\n" ada-fill-comment-prefix "Status : Unknown, Use with caution!"
+ "\n")
+
+
+(define-skeleton ada-display-comment
+ "Inserts three comment lines, making a display comment."
+ ()
+ "--\n" ada-fill-comment-prefix _ "\n--")
+
+
+(define-skeleton ada-if
+ "Insert skeleton if statement, prompting for a boolean-expression."
+ "[condition]: "
+ "if " str " then" \n
+ > _ \n
+ < "end if;")
+
+
+(define-skeleton ada-elsif
+ "Add an elsif clause to an if statement,
+prompting for the boolean-expression."
+ "[condition]: "
+ < "elsif " str " then" \n
+ >)
+
+
+(define-skeleton ada-else
+ "Add an else clause inside an if-then-end-if clause."
+ ()
+ < "else" \n
+ >)
+
+
+(define-skeleton ada-loop
+ "Insert a skeleton loop statement. The exit statement is added by hand."
+ "[loop name]: "
+ < str & ?: & \n
+ > "loop" \n
+ > _ \n
+ < "end loop " str | -1 ?\;)
+
+
+(define-skeleton ada-for-loop-prompt-variable
+ "Prompt for the loop variable."
+ "[loop variable]: "
+ str)
+
+
+(define-skeleton ada-for-loop-prompt-range
+ "Prompt for the loop range."
+ "[loop range]: "
+ str)
+
+
+(define-skeleton ada-for-loop
+ "Build a skeleton for-loop statement, prompting for the loop parameters."
+ "[loop name]: "
+ < str & ?: & \n
+ > "for "
+ (ada-for-loop-prompt-variable)
+ " in "
+ (ada-for-loop-prompt-range)
+ " loop" \n
+ > _ \n
+ < "end loop " str | -1 ?\;)
+
+
+(define-skeleton ada-while-loop-prompt-entry-condition
+ "Prompt for the loop entry condition."
+ "[entry condition]: "
+ str)
+
+
+(define-skeleton ada-while-loop
+ "Insert a skeleton while loop statement."
+ "[loop name]: "
+ < str & ?: & \n
+ > "while "
+ (ada-while-loop-prompt-entry-condition)
+ " loop" \n
+ > _ \n
+ < "end loop " str | -1 ?\;)
+
+
+(define-skeleton ada-package-spec
+ "Insert a skeleton package specification."
+ "[package name]: "
+ "package " str " is" \n
+ > _ \n
+ < "end " str ?\;)
+
+
+(define-skeleton ada-package-body
+ "Insert a skeleton package body -- includes a begin statement."
+ "[package name]: "
+ "package body " str " is" \n
+ > _ \n
+; < "begin" \n
+ < "end " str ?\;)
+
+
+(define-skeleton ada-private
+ "Undent and start a private section of a package spec. Reindent."
+ ()
+ < "private" \n
+ >)
+
+
+(define-skeleton ada-function-spec-prompt-return
+ "Prompts for function result type."
+ "[result type]: "
+ str)
+
+
+(define-skeleton ada-function-spec
+ "Insert a function specification. Prompts for name and arguments."
+ "[function name]: "
+ "function " str
+ " (" ("[parameter_specification]: " str "; " ) -2 ")"
+ " return "
+ (ada-function-spec-prompt-return)
+ ";" \n )
+
+
+(define-skeleton ada-procedure-spec
+ "Insert a procedure specification, prompting for its name and arguments."
+ "[procedure name]: "
+ "procedure " str
+ " (" ("[parameter_specification]: " str "; " ) -2 ")"
+ ";" \n )
+
+
+(define-skeleton ada-subprogram-body
+ "Insert frame for subprogram body.
+Invoke right after `ada-function-spec' or `ada-procedure-spec'."
+ ()
+ ;; Remove `;' from subprogram decl
+ (save-excursion
+ (let ((pos (1+ (point))))
+ (ada-search-ignore-string-comment ada-subprog-start-re t nil)
+ (when (ada-search-ignore-string-comment "(" nil pos t 'search-forward)
+ (backward-char 1)
+ (forward-sexp 1)))
+ (if (looking-at ";")
+ (delete-char 1)))
+ " is" \n
+ _ \n
+ < "begin" \n
+ \n
+ < "exception" \n
+ "when others => null;" \n
+ < < "end "
+ (ada-func-or-proc-name)
+ ";" \n)
+
+
+(define-skeleton ada-separate
+ "Finish a body stub with `separate'."
+ ()
+ > "separate;" \n
+ <)
+
+
+;(define-skeleton ada-with
+; "Inserts a with clause, prompting for the list of units depended upon."
+; "[list of units depended upon]: "
+; "with " str ?\;)
+
+;(define-skeleton ada-use
+; "Inserts a use clause, prompting for the list of packages used."
+; "[list of packages used]: "
+; "use " str ?\;)
+
+
+(define-skeleton ada-record
+ "Insert a skeleton record type declaration."
+ ()
+ "record" \n
+ > _ \n
+ < "end record;")
+
+
+(define-skeleton ada-subtype
+ "Start insertion of a subtype declaration, prompting for the subtype name."
+ "[subtype name]: "
+ "subtype " str " is " _ ?\;
+ (not (message "insert subtype indication.")))
+
+
+(define-skeleton ada-type
+ "Start insertion of a type declaration, prompting for the type name."
+ "[type name]: "
+ "type " str ?\(
+ ("[discriminant specs]: " str " ")
+ | (backward-delete-char 1) | ?\)
+ " is "
+ (not (message "insert type definition.")))
+
+
+(define-skeleton ada-task-body
+ "Insert a task body, prompting for the task name."
+ "[task name]: "
+ "task body " str " is\n"
+ "begin\n"
+ > _ \n
+ < "end " str ";" )
+
+
+(define-skeleton ada-task-spec
+ "Insert a task specification, prompting for the task name."
+ "[task name]: "
+ "task " str
+ " (" ("[discriminant]: " str "; ") ") is\n"
+ > "entry " _ \n
+ <"end " str ";" )
+
+
+(define-skeleton ada-get-param1
+ "Prompt for arguments and if any enclose them in brackets."
+ ()
+ ("[parameter_specification]: " str "; " ) & -2 & ")")
+
+
+(define-skeleton ada-get-param
+ "Prompt for arguments and if any enclose them in brackets."
+ ()
+ " ("
+ (ada-get-param1) | -2)
+
+
+(define-skeleton ada-entry
+ "Insert a task entry, prompting for the entry name."
+ "[entry name]: "
+ "entry " str
+ (ada-get-param)
+ ";" \n)
+
+
+(define-skeleton ada-entry-family-prompt-discriminant
+ "Insert an entry specification, prompting for the entry name."
+ "[discriminant name]: "
+ str)
+
+
+(define-skeleton ada-entry-family
+ "Insert an entry specification, prompting for the entry name."
+ "[entry name]: "
+ "entry " str
+ " (" (ada-entry-family-prompt-discriminant) ")"
+ (ada-get-param)
+ ";" \n)
+
+
+(define-skeleton ada-select
+ "Insert a select block."
+ ()
+ "select\n"
+ > _ \n
+ < "end select;")
+
+
+(define-skeleton ada-accept-1
+ "Insert a condition statement, prompting for the condition name."
+ "[condition]: "
+ "when " str | -5 )
+
+
+(define-skeleton ada-accept-2
+ "Insert an accept statement, prompting for the name and arguments."
+ "[accept name]: "
+ > "accept " str
+ (ada-get-param)
+ " do" \n
+ > _ \n
+ < "end " str ";" )
+
+
+(define-skeleton ada-accept
+ "Insert an accept statement (prompt for condition, name and arguments)."
+ ()
+ > (ada-accept-1) & " =>\n"
+ (ada-accept-2))
+
+
+(define-skeleton ada-or-accept
+ "Insert an accept alternative, prompting for the condition name."
+ ()
+ < "or\n"
+ (ada-accept))
+
+
+(define-skeleton ada-or-delay
+ "Insert a delay alternative, prompting for the delay value."
+ "[delay value]: "
+ < "or\n"
+ > "delay " str ";")
+
+
+(define-skeleton ada-or-terminate
+ "Insert a terminate alternative."
+ ()
+ < "or\n"
+ > "terminate;")
+
+
+(provide 'ada-stmt)
+
+;;; ada-stmt.el ends here