;;; sh-script.el --- shell-script editing commands for Emacs
-;; Copyright (C) 1993, 94, 95, 96, 97, 1999 by Free Software Foundation, Inc.
+;; Copyright (C) 1993, 94, 95, 96, 97, 1999, 2001, 2003
+;; Free Software Foundation, Inc.
;; Author: Daniel Pfeiffer <occitan@esperanto.org>
;; Version: 2.0f
;; ===========
;; Indentation for rc and es modes is very limited, but for Bourne shells
;; and its derivatives it is quite customizable.
-;;
+;;
;; The following description applies to sh and derived shells (bash,
;; zsh, ...).
-;;
+;;
;; There are various customization variables which allow tailoring to
;; a wide variety of styles. Most of these variables are named
;; sh-indent-for-XXX and sh-indent-after-XXX. For example.
;; sh-indent-after-if controls the indenting of a line following
;; an if statement, and sh-indent-for-fi controls the indentation
;; of the line containing the fi.
-;;
+;;
;; You can set each to a numeric value, but it is often more convenient
;; to a symbol such as `+' which uses the value of variable `sh-basic-offset'.
;; By changing this one variable you can increase or decrease how much
;; indentation there is. Valid symbols:
-;;
+;;
;; + Indent right by sh-basic-offset
;; - Indent left by sh-basic-offset
;; ++ Indent right twice sh-basic-offset
;; -- Indent left twice sh-basic-offset
;; * Indent right half sh-basic-offset
;; / Indent left half sh-basic-offset.
-;;
+;;
;; There are 4 commands to help set the indentation variables:
-;;
+;;
;; `sh-show-indent'
;; This shows what variable controls the indentation of the current
;; line and its value.
-;;
+;;
;; `sh-set-indent'
;; This allows you to set the value of the variable controlling the
;; current line's indentation. You can enter a number or one of a
;; or its negative, or half it, or twice it, etc. If you've used
;; cc-mode this should be familiar. If you forget which symbols are
;; valid simply press C-h at the prompt.
-;;
+;;
;; `sh-learn-line-indent'
;; Simply make the line look the way you want it, then invoke this
;; command. It will set the variable to the value that makes the line
;; indent like that. If called with a prefix argument then it will set
;; the value to one of the symbols if applicable.
-;;
+;;
;; `sh-learn-buffer-indent'
;; This is the deluxe function! It "learns" the whole buffer (use
;; narrowing if you want it to process only part). It outputs to a
;; pattern; if they don't it will be set to nil.
;; Whether `sh-basic-offset' is set is determined by variable
;; `sh-learn-basic-offset'.
-;;
+;;
;; Unfortunately, `sh-learn-buffer-indent' can take a long time to run
;; (e.g. if there are large case statements). Perhaps it does not make
;; sense to run it on large buffers: if lots of lines have different
;; *indent* buffer; if there is a consistent style then running
;; `sh-learn-buffer-indent' on a small region of the buffer should
;; suffice.
-;;
+;;
;; Saving indentation values
;; -------------------------
;; After you've learned the values in a buffer, how to you remember
;; the buffer.
;; You can do this automatically like this:
;; (add-hook 'sh-set-shell-hook 'sh-learn-buffer-indent)
-;;
-;; However... `sh-learn-buffer-indent' is extremely slow,
+;;
+;; However... `sh-learn-buffer-indent' is extremely slow,
;; especially on large-ish buffer. Also, if there are conflicts the
;; "last one wins" which may not produce the desired setting.
-;;
+;;
;; So...There is a minimal way of being able to save indentation values and
;; to reload them in another buffer or at another point in time.
-;;
+;;
;; Use `sh-name-style' to give a name to the indentation settings of
;; the current buffer.
;; Use `sh-load-style' to load indentation settings for the current
;; Use `sh-save-styles-to-buffer' to write all the styles to a buffer
;; in lisp code. You can then store it in a file and later use
;; `load-file' to load it.
-;;
+;;
;; Indentation variables - buffer local or global?
;; ----------------------------------------------
;; I think that often having them buffer-local makes sense,
;; especially if one is using `sh-learn-buffer-indent'. However, if
;; a user sets values using customization, these changes won't appear
;; to work if the variables are already local!
-;;
+;;
;; To get round this, there is a variable `sh-make-vars-local' and 2
;; functions: `sh-make-vars-local' and `sh-reset-indent-vars-to-global-values'.
-;;
+;;
;; If `sh-make-vars-local' is non-nil, then these variables become
;; buffer local when the mode is established.
;; If this is nil, then the variables are global. At any time you
;; can make them local with the command `sh-make-vars-local'.
;; Conversely, to update with the global values you can use the
;; command `sh-reset-indent-vars-to-global-values'.
-;;
+;;
;; This may be awkward, but the intent is to cover all cases.
-;;
+;;
;; Awkward things, pitfalls
;; ------------------------
;; Indentation for a sh script is complicated for a number of reasons:
-;;
+;;
;; 1. You can't format by simply looking at symbols, you need to look
;; at keywords. [This is not the case for rc and es shells.]
;; 2. The character ")" is used both as a matched pair "(" ... ")" and
;; 4. A line may be continued using the "\".
;; 5. The character "#" (outside a string) normally starts a comment,
;; but it doesn't in the sequence "$#"!
-;;
+;;
;; To try and address points 2 3 and 5 I used a feature that cperl mode
;; uses, that of a text's syntax property. This, however, has 2
;; disadvantages:
;; buffer is read-only buffer we have to cheat and bypass the read-only
;; status. This is for cases where the buffer started read-only buffer
;; but the user issued `toggle-read-only'.
-;;
+;;
;; Bugs
;; ----
-;; - Here-documents are marked with text properties face and syntax
-;; table. This serves 2 purposes: stopping indentation while inside
-;; them, and moving over them when finding the previous line to
-;; indent to. However, if font-lock mode is active when there is
-;; any change inside the here-document font-lock clears that
-;; property. This causes several problems: lines after the here-doc
-;; will not be re-indented properly, words in the here-doc region
-;; may be fontified, and indentation may occur within the
-;; here-document.
-;; I'm not sure how to fix this, perhaps using the point-entered
-;; property. Anyway, if you use font lock and change a
-;; here-document, I recommend using M-x sh-rescan-buffer after the
-;; changes are made. Similarly, when using highlight-changes-mode,
-;; changes inside a here-document may confuse shell indenting, but again
-;; using `sh-rescan-buffer' should fix them.
-;;
;; - Indenting many lines is slow. It currently does each line
;; independently, rather than saving state information.
-;;
+;;
;; - `sh-learn-buffer-indent' is extremely slow.
-;;
+;;
;; Richard Sharman <rsharman@pobox.com> June 1999.
;;; Code:
csh C Shell
jcsh C Shell with Job Control
- tcsh Toronto C Shell
- itcsh ? Toronto C Shell
+ tcsh Turbo C Shell
+ itcsh ? Turbo C Shell
rc Plan 9 Shell
es Extensible Shell
sh Bourne Shell
(defcustom sh-alias-alist
- (nconc (if (eq system-type 'gnu/linux)
+ (append (if (eq system-type 'gnu/linux)
'((csh . tcsh)
(ksh . pdksh)))
;; for the time being
(defcustom sh-imenu-generic-expression
`((sh
. ((nil "^\\s-*\\(function\\s-+\\)?\\([A-Za-z_][A-Za-z_0-9]+\\)\\s-*()" 2))))
- "*Regular expression for recognizing shell function definitions.
-See `sh-feature'."
- :type '(repeat (cons (symbol :tag "Shell")
- regexp))
+ "*Alist of regular expressions for recognizing shell function definitions.
+See `sh-feature' and `imenu-generic-expression'."
+ :type '(alist :key-type (symbol :tag "Shell")
+ :value-type (alist :key-type (choice :tag "Title"
+ string
+ (const :tag "None" nil))
+ :value-type
+ (repeat :tag "Regexp, index..." sexp)))
:group 'sh-script
:version "20.4")
(defvar sh-shell (sh-canonicalize-shell (file-name-nondirectory sh-shell-file))
"The shell being programmed. This is set by \\[sh-set-shell].")
-;;; I turned off this feature because it doesn't permit typing commands
-;;; in the usual way without help.
-;;;(defvar sh-abbrevs
-;;; '((csh eval sh-abbrevs shell
-;;; "switch" 'sh-case
-;;; "getopts" 'sh-while-getopts)
-
-;;; (es eval sh-abbrevs shell
-;;; "function" 'sh-function)
-
-;;; (ksh88 eval sh-abbrevs sh
-;;; "select" 'sh-select)
-
-;;; (rc eval sh-abbrevs shell
-;;; "case" 'sh-case
-;;; "function" 'sh-function)
-
-;;; (sh eval sh-abbrevs shell
-;;; "case" 'sh-case
-;;; "function" 'sh-function
-;;; "until" 'sh-until
-;;; "getopts" 'sh-while-getopts)
-
-;;; ;; The next entry is only used for defining the others
-;;; (shell "for" sh-for
-;;; "loop" sh-indexed-loop
-;;; "if" sh-if
-;;; "tmpfile" sh-tmp-file
-;;; "while" sh-while)
-
-;;; (zsh eval sh-abbrevs ksh88
-;;; "repeat" 'sh-repeat))
-;;; "Abbrev-table used in Shell-Script mode. See `sh-feature'.
+;; I turned off this feature because it doesn't permit typing commands
+;; in the usual way without help.
+;;(defvar sh-abbrevs
+;; '((csh eval sh-abbrevs shell
+;; "switch" 'sh-case
+;; "getopts" 'sh-while-getopts)
+
+;; (es eval sh-abbrevs shell
+;; "function" 'sh-function)
+
+;; (ksh88 eval sh-abbrevs sh
+;; "select" 'sh-select)
+
+;; (rc eval sh-abbrevs shell
+;; "case" 'sh-case
+;; "function" 'sh-function)
+
+;; (sh eval sh-abbrevs shell
+;; "case" 'sh-case
+;; "function" 'sh-function
+;; "until" 'sh-until
+;; "getopts" 'sh-while-getopts)
+
+;; ;; The next entry is only used for defining the others
+;; (shell "for" sh-for
+;; "loop" sh-indexed-loop
+;; "if" sh-if
+;; "tmpfile" sh-tmp-file
+;; "while" sh-while)
+
+;; (zsh eval sh-abbrevs ksh88
+;; "repeat" 'sh-repeat))
+;; "Abbrev-table used in Shell-Script mode. See `sh-feature'.
;;;Due to the internal workings of abbrev tables, the shell name symbol is
;;;actually defined as the table for the like of \\[edit-abbrevs].")
(defvar sh-mode-syntax-table
'((sh eval sh-mode-syntax-table ()
?\# "<"
- ?\^l ">#"
?\n ">#"
?\" "\"\""
?\' "\"'"
?> ".")
(csh eval identity sh)
(rc eval identity sh))
- "Syntax-table used in Shell-Script mode. See `sh-feature'.")
-
+ "Syntax-table used in Shell-Script mode. See `sh-feature'.")
(defvar sh-mode-map
(let ((map (make-sparse-keymap))
(define-key map "'" 'skeleton-pair-insert-maybe)
(define-key map "`" 'skeleton-pair-insert-maybe)
(define-key map "\"" 'skeleton-pair-insert-maybe)
- (define-key map ")" 'sh-electric-rparen)
- (define-key map "<" 'sh-electric-less)
- (define-key map "#" 'sh-electric-hash)
-
- (substitute-key-definition 'complete-tag 'comint-dynamic-complete
- map (current-global-map))
- (substitute-key-definition 'newline-and-indent 'sh-newline-and-indent
- map (current-global-map))
- (substitute-key-definition 'delete-backward-char
- 'backward-delete-char-untabify
- map (current-global-map))
+
+ (define-key map [remap complete-tag] 'comint-dynamic-complete)
+ (define-key map [remap newline-and-indent] 'sh-newline-and-indent)
+ (define-key map [remap delete-backward-char]
+ 'backward-delete-char-untabify)
(define-key map "\C-c:" 'sh-set-shell)
- (substitute-key-definition 'beginning-of-defun
- 'sh-beginning-of-compound-command
- map (current-global-map))
- (substitute-key-definition 'backward-sentence 'sh-beginning-of-command
- map (current-global-map))
- (substitute-key-definition 'forward-sentence 'sh-end-of-command
- map (current-global-map))
+ (define-key map [remap beginning-of-defun]
+ 'sh-beginning-of-compound-command)
+ (define-key map [remap backward-sentence] 'sh-beginning-of-command)
+ (define-key map [remap forward-sentence] 'sh-end-of-command)
(define-key map [menu-bar insert] (cons "Insert" menu-map))
(define-key menu-map [sh-while] '("While Loop" . sh-while))
(define-key menu-map [sh-until] '("Until Loop" . sh-until))
"List of all shell variables available for completing read.
See `sh-feature'.")
+\f
+;; Font-Lock support
+
+(defface sh-heredoc-face
+ '((((class color)
+ (background dark))
+ (:foreground "yellow" :weight bold))
+ (((class color)
+ (background light))
+ (:foreground "tan" ))
+ (t
+ (:weight bold)))
+ "Face to show a here-document"
+ :group 'sh-indentation)
+(defvar sh-heredoc-face 'sh-heredoc-face)
(defvar sh-font-lock-keywords
(defvar sh-font-lock-keywords-2 ()
"Gaudy level highlighting for Shell Script modes.")
+;; These are used for the syntax table stuff (derived from cperl-mode).
+;; Note: parse-sexp-lookup-properties must be set to t for it to work.
+(defconst sh-st-punc (string-to-syntax "."))
+(defconst sh-st-symbol (string-to-syntax "_"))
+(defconst sh-here-doc-syntax (string-to-syntax "|")) ;; generic string
+
+(defconst sh-here-doc-open-re "<<-?\\s-*\\\\?\\(\\(?:['\"][^'\"]+['\"]\\|\\sw\\|\\s_\\)+\\).*\\(\n\\)")
+
+(defvar sh-here-doc-markers nil)
+(make-variable-buffer-local 'sh-here-doc-markers)
+(defvar sh-here-doc-re sh-here-doc-open-re)
+(make-variable-buffer-local 'sh-here-doc-re)
+
+(defun sh-font-lock-close-heredoc (bol eof indented)
+ "Determine the syntax of the \\n after an EOF.
+If non-nil INDENTED indicates that the EOF was indented."
+ (let* ((eof-re (if eof (regexp-quote eof) ""))
+ ;; A rough regexp that should find the opening <<EOF back.
+ (sre (concat "<<\\(-?\\)\\s-*['\"\\]?"
+ ;; Use \s| to cheaply check it's an open-heredoc.
+ eof-re "['\"]?\\([ \t|;&)<>].*\\)?\\s|"))
+ ;; A regexp that will find other EOFs.
+ (ere (concat "^" (if indented "[ \t]*") eof-re "\n"))
+ (start (save-excursion
+ (goto-char bol)
+ (re-search-backward (concat sre "\\|" ere) nil t))))
+ ;; If subgroup 1 matched, we found an open-heredoc, otherwise we first
+ ;; found a close-heredoc which makes the current close-heredoc inoperant.
+ (cond
+ ((when (and start (match-end 1)
+ (not (and indented (= (match-beginning 1) (match-end 1))))
+ (not (sh-in-comment-or-string (match-beginning 0))))
+ ;; Make sure our `<<' is not the EOF1 of a `cat <<EOF1 <<EOF2'.
+ (save-excursion
+ (goto-char start)
+ (setq start (line-beginning-position 2))
+ (while
+ (progn
+ (re-search-forward "<<") ; Skip ourselves.
+ (and (re-search-forward sh-here-doc-open-re start 'move)
+ (goto-char (match-beginning 0))
+ (sh-in-comment-or-string (point)))))
+ ;; No <<EOF2 found after our <<.
+ (= (point) start)))
+ sh-here-doc-syntax)
+ ((not (or start (save-excursion (re-search-forward sre nil t))))
+ ;; There's no <<EOF either before or after us,
+ ;; so we should remove ourselves from font-lock's keywords.
+ (setq sh-here-doc-markers (delete eof sh-here-doc-markers))
+ (setq sh-here-doc-re
+ (concat sh-here-doc-open-re "\\|^\\([ \t]*\\)"
+ (regexp-opt sh-here-doc-markers t) "\\(\n\\)"))
+ nil))))
+
+(defun sh-font-lock-open-heredoc (start string)
+ "Determine the syntax of the \\n after a <<EOF.
+START is the position of <<.
+STRING is the actual word used as delimiter (f.ex. \"EOF\").
+INDENTED is non-nil if the here document's content (and the EOF mark) can
+be indented (i.e. a <<- was used rather than just <<)."
+ (unless (or (memq (char-before start) '(?< ?>))
+ (sh-in-comment-or-string start))
+ ;; We're looking at <<STRING, so we add "^STRING$" to the syntactic
+ ;; font-lock keywords to detect the end of this here document.
+ (let ((str (replace-regexp-in-string "['\"]" "" string)))
+ (unless (member str sh-here-doc-markers)
+ (push str sh-here-doc-markers)
+ (setq sh-here-doc-re
+ (concat sh-here-doc-open-re "\\|^\\([ \t]*\\)"
+ (regexp-opt sh-here-doc-markers t) "\\(\n\\)"))))
+ sh-here-doc-syntax))
+
+(defun sh-font-lock-here-doc (limit)
+ "Search for a heredoc marker."
+ ;; This looks silly, but it's because `sh-here-doc-re' keeps changing.
+ (re-search-forward sh-here-doc-re limit t))
+
+(defun sh-font-lock-paren (start)
+ (save-excursion
+ (goto-char start)
+ ;; Skip through all patterns
+ (while
+ (progn
+ (forward-comment (- (point-max)))
+ ;; Skip through one pattern
+ (while
+ (or (/= 0 (skip-syntax-backward "w_"))
+ (/= 0 (skip-chars-backward "?*/"))
+ (when (memq (char-before) '(?\" ?\'))
+ (condition-case nil (progn (backward-sexp 1) t)
+ (error nil)))))
+ (forward-comment (- (point-max)))
+ (when (eq (char-before) ?|)
+ (backward-char 1) t)))
+ (when (save-excursion (backward-char 2) (looking-at ";;\\|in"))
+ sh-st-punc)))
+
(defconst sh-font-lock-syntactic-keywords
- ;; Mark a `#' character as having punctuation syntax in a variable reference.
- ;; Really we should do this properly. From Chet Ramey and Brian Fox:
- ;; "A `#' begins a comment when it is unquoted and at the beginning of a
- ;; word. In the shell, words are separated by metacharacters."
- ;; To do this in a regexp would be slow as it would be anchored to the right.
- ;; But I can't be bothered to write a function to do it properly and
- ;; efficiently. So we only do it properly for `#' in variable references and
- ;; do it efficiently by anchoring the regexp to the left.
- '(("\\${?[^}#\n\t ]*\\(##?\\)" 1 (1 . nil))))
+ ;; A `#' begins a comment when it is unquoted and at the beginning of a
+ ;; word. In the shell, words are separated by metacharacters.
+ ;; The list of special chars is taken from the single-unix spec
+ ;; of the shell command language (under `quoting') but with `$' removed.
+ `(("[^|&;<>()`\\\"' \t\n]\\(#+\\)" 1 ,sh-st-symbol)
+ ;; Find HEREDOC starters and add a corresponding rule for the ender.
+ (sh-font-lock-here-doc
+ (2 (sh-font-lock-open-heredoc
+ (match-beginning 0) (match-string 1)) nil t)
+ (5 (sh-font-lock-close-heredoc
+ (match-beginning 0) (match-string 4)
+ (and (match-beginning 3) (/= (match-beginning 3) (match-end 3))))
+ nil t))
+ ;; Distinguish the special close-paren in `case'.
+ (")" 0 (sh-font-lock-paren (match-beginning 0)))))
+
+(defun sh-font-lock-syntactic-face-function (state)
+ (if (nth 3 state)
+ (if (char-valid-p (nth 3 state))
+ font-lock-string-face
+ sh-heredoc-face)
+ font-lock-comment-face))
(defgroup sh-indentation nil
"Variables controlling indentation in shell scripts.
sh-symbol-list))
(defcustom sh-indent-for-fi 0
- "*How much to indent a fi relative to an if. Usually 0."
+ "*How much to indent a fi relative to an if. Usually 0."
:type `(choice ,@ sh-number-or-symbol-list )
:group 'sh-indentation)
(defcustom sh-indent-for-done '0
- "*How much to indent a done relative to its matching stmt. Usually 0."
+ "*How much to indent a done relative to its matching stmt. Usually 0."
:type `(choice ,@ sh-number-or-symbol-list )
:group 'sh-indentation)
:group 'sh-indentation)
(defcustom sh-indent-for-then '+
- "*How much to indent an then relative to an if."
+ "*How much to indent a then relative to an if."
:type `(choice ,@ sh-number-or-symbol-list )
:group 'sh-indentation)
:type `(choice ,@ sh-number-or-symbol-list)
:group 'sh-indentation)
-(defface sh-heredoc-face
- '((((class color)
- (background dark))
- (:foreground "yellow" :bold t))
- (((class color)
- (background light))
- (:foreground "tan" ))
- (t
- (:bold t)))
- "Face to show a here-document"
- :group 'sh-indentation)
-
-(defface sh-st-face
- '((((class color)
- (background dark))
- (:foreground "yellow" :bold t))
- (((class color)
- (background light))
- (:foreground "tan" ))
- (t
- (:bold t)))
- "Face to show characters with special syntax properties."
- :group 'sh-indentation)
-
-
;; Internal use - not designed to be changed by the user:
-;; These are used for the syntax table stuff (derived from cperl-mode).
-;; Note: parse-sexp-lookup-properties must be set to t for it to work.
-(defconst sh-here-doc-syntax '(15)) ;; generic string
-(defconst sh-st-punc '(1))
-(defconst sh-special-syntax sh-st-punc)
-
(defun sh-mkword-regexpr (word)
"Make a regexp which matches WORD as a word.
This specifically excludes an occurrence of WORD followed by
punctuation characters like '-'."
(concat word "\\([^-a-z0-9_]\\|$\\)"))
-(defun sh-mkword-regexp (word)
- "Make a regexp which matches WORD as a word.
-This specifically excludes an occurrence of WORD followed by
-or preceded by punctuation characters like '-'."
- (concat "\\(^\\|[^-a-z0-9_]\\)" word "\\([^-a-z0-9_]\\|$\\)"))
-
(defconst sh-re-done (sh-mkword-regexpr "done"))
(defvar sh-indent-supported-here nil
"Non-nil if we support indentation for the current buffer's shell type.")
-(defconst sh-electric-rparen-needed
- '((sh . t))
- "Non-nil if the shell type needs an electric handling of case alternatives.")
-
-(defvar sh-electric-rparen-needed-here nil
- "Non-nil if the buffer needs an electric handling of case alternatives.")
-
(defconst sh-var-list
'(
sh-basic-offset sh-first-lines-indent sh-indent-after-case
\\[sh-execute-region] Have optional header and region be executed in a subshell.
\\[sh-maybe-here-document] Without prefix, following an unquoted < inserts here document.
-{, (, [, ', \", `
+\{, (, [, ', \", `
Unless quoted with \\, insert the pairs {}, (), [], or '', \"\", ``.
If you generally program a shell different from your login shell you can
with your script for an edit-interpret-debug cycle."
(interactive)
(kill-all-local-variables)
+ (setq major-mode 'sh-mode
+ mode-name "Shell-script")
(use-local-map sh-mode-map)
(make-local-variable 'skeleton-end-hook)
(make-local-variable 'paragraph-start)
(make-local-variable 'sh-shell-variables-initialized)
(make-local-variable 'imenu-generic-expression)
(make-local-variable 'sh-indent-supported-here)
- (make-local-variable 'font-lock-unfontify-region-function)
- (setq major-mode 'sh-mode
- mode-name "Shell-script"
- ;; not very clever, but enables wrapping skeletons around regions
- indent-region-function (lambda (b e)
- (save-excursion
- (goto-char b)
- (skip-syntax-backward "-")
- (setq b (point))
- (goto-char e)
- (skip-syntax-backward "-")
- (indent-rigidly b (point) sh-indentation)))
- skeleton-end-hook (lambda ()
+ (setq skeleton-end-hook (lambda ()
(or (eolp) (newline) (indent-relative)))
paragraph-start (concat page-delimiter "\\|$")
paragraph-separate paragraph-start
;; we can't look if previous line ended with `\'
comint-prompt-regexp "^[ \t]*"
font-lock-defaults
- '((sh-font-lock-keywords
+ `((sh-font-lock-keywords
sh-font-lock-keywords-1 sh-font-lock-keywords-2)
nil nil
((?/ . "w") (?~ . "w") (?. . "w") (?- . "w") (?_ . "w")) nil
- (font-lock-syntactic-keywords . sh-font-lock-syntactic-keywords))
- font-lock-unfontify-region-function
- 'sh-font-lock-unfontify-region-function
+ (font-lock-syntactic-keywords . sh-font-lock-syntactic-keywords)
+ (font-lock-syntactic-face-function
+ . sh-font-lock-syntactic-face-function))
skeleton-pair-alist '((?` _ ?`))
skeleton-pair-filter 'sh-quoted-p
skeleton-further-elements '((< '(- (min sh-indentation
((and buffer-file-name
(string-match "\\.m?spec$" buffer-file-name))
"rpm")))))
- (if interpreter
- (sh-set-shell interpreter nil nil)
- (sh-set-shell sh-shell-file nil nil))
- (run-hooks 'sh-mode-hook)))
+ (sh-set-shell (or interpreter sh-shell-file) nil nil))
+ (run-hooks 'sh-mode-hook))
+
;;;###autoload
(defalias 'shell-script-mode 'sh-mode)
(defun sh-font-lock-keywords-1 (&optional builtins)
"Function to get better fontification including keywords."
- (let ((keywords (concat "\\([;(){}`|&]\\|^\\)[ \t]*\\(\\(\\("
- (mapconcat 'identity
- (sh-feature sh-leading-keywords)
- "\\|")
- "\\)[ \t]+\\)?\\("
- (mapconcat 'identity
- (append (sh-feature sh-leading-keywords)
- (sh-feature sh-other-keywords))
- "\\|")
- "\\)")))
+ (let ((keywords (concat "\\([;(){}`|&]\\|^\\)[ \t]*\\(\\("
+ (regexp-opt (sh-feature sh-leading-keywords) t)
+ "[ \t]+\\)?"
+ (regexp-opt (append (sh-feature sh-leading-keywords)
+ (sh-feature sh-other-keywords))
+ t))))
(sh-font-lock-keywords
`(,@(if builtins
- `((,(concat keywords "[ \t]+\\)?\\("
- (mapconcat 'identity (sh-feature sh-builtins) "\\|")
- "\\)\\>")
+ `((,(concat keywords "[ \t]+\\)?"
+ (regexp-opt (sh-feature sh-builtins) t)
+ "\\>")
(2 font-lock-keyword-face nil t)
(6 font-lock-builtin-face))
,@(sh-feature sh-font-lock-keywords-2)))
(defun sh-set-shell (shell &optional no-query-flag insert-flag)
"Set this buffer's shell to SHELL (a string).
-Makes this script executable via `executable-set-magic', and sets up the
-proper starting #!-line, if INSERT-FLAG is non-nil.
+When used interactively, insert the proper starting #!-line,
+and make the visited file executable via `executable-set-magic',
+perhaps querying depending on the value of `executable-query'.
+
+When this function is called noninteractively, INSERT-FLAG (the third
+argument) controls whether to insert a #!-line and think about making
+the visited file executable, and NO-QUERY-FLAG (the second argument)
+controls whether to query about making the visited file executable.
+
Calls the value of `sh-set-shell-hook' if set."
- (interactive (list (completing-read "Name or path of shell: "
- interpreter-mode-alist
- (lambda (x) (eq (cdr x) 'sh-mode)))
+ (interactive (list (completing-read (format "Shell \(default %s\): "
+ sh-shell-file)
+ interpreter-mode-alist
+ (lambda (x) (eq (cdr x) 'sh-mode))
+ nil nil nil sh-shell-file)
(eq executable-query 'function)
t))
(if (string-match "\\.exe\\'" shell)
(if (setq sh-indent-supported-here (sh-feature sh-indent-supported))
(progn
(message "Setting up indent for shell type %s" sh-shell)
- (set (make-local-variable 'sh-electric-rparen-needed-here)
- (sh-feature sh-electric-rparen-needed))
(set (make-local-variable 'parse-sexp-lookup-properties) t)
- (sh-scan-buffer)
(set (make-local-variable 'sh-kw-alist) (sh-feature sh-kw))
(let ((regexp (sh-feature sh-kws-for-done)))
(if regexp
-;;; I commented this out because nobody calls it -- rms.
-;;;(defun sh-abbrevs (ancestor &rest list)
-;;; "Iff it isn't, define the current shell as abbrev table and fill that.
-;;;Abbrev table will inherit all abbrevs from ANCESTOR, which is either an abbrev
-;;;table or a list of (NAME1 EXPANSION1 ...). In addition it will define abbrevs
-;;;according to the remaining arguments NAMEi EXPANSIONi ...
-;;;EXPANSION may be either a string or a skeleton command."
-;;; (or (if (boundp sh-shell)
-;;; (symbol-value sh-shell))
-;;; (progn
-;;; (if (listp ancestor)
-;;; (nconc list ancestor))
-;;; (define-abbrev-table sh-shell ())
-;;; (if (vectorp ancestor)
-;;; (mapatoms (lambda (atom)
-;;; (or (eq atom 0)
-;;; (define-abbrev (symbol-value sh-shell)
-;;; (symbol-name atom)
-;;; (symbol-value atom)
-;;; (symbol-function atom))))
-;;; ancestor))
-;;; (while list
-;;; (define-abbrev (symbol-value sh-shell)
-;;; (car list)
-;;; (if (stringp (car (cdr list)))
-;;; (car (cdr list))
-;;; "")
-;;; (if (symbolp (car (cdr list)))
-;;; (car (cdr list))))
-;;; (setq list (cdr (cdr list)))))
-;;; (symbol-value sh-shell)))
+;; I commented this out because nobody calls it -- rms.
+;;(defun sh-abbrevs (ancestor &rest list)
+;; "Iff it isn't, define the current shell as abbrev table and fill that.
+;;Abbrev table will inherit all abbrevs from ANCESTOR, which is either an abbrev
+;;table or a list of (NAME1 EXPANSION1 ...). In addition it will define abbrevs
+;;according to the remaining arguments NAMEi EXPANSIONi ...
+;;EXPANSION may be either a string or a skeleton command."
+;; (or (if (boundp sh-shell)
+;; (symbol-value sh-shell))
+;; (progn
+;; (if (listp ancestor)
+;; (nconc list ancestor))
+;; (define-abbrev-table sh-shell ())
+;; (if (vectorp ancestor)
+;; (mapatoms (lambda (atom)
+;; (or (eq atom 0)
+;; (define-abbrev (symbol-value sh-shell)
+;; (symbol-name atom)
+;; (symbol-value atom)
+;; (symbol-function atom))))
+;; ancestor))
+;; (while list
+;; (define-abbrev (symbol-value sh-shell)
+;; (car list)
+;; (if (stringp (car (cdr list)))
+;; (car (cdr list))
+;; "")
+;; (if (symbolp (car (cdr list)))
+;; (car (cdr list))))
+;; (setq list (cdr (cdr list)))))
+;; (symbol-value sh-shell)))
(defun sh-mode-syntax-table (table &rest list)
(modify-syntax-entry (pop list) (pop list) table))
table)
-
(defun sh-append (ancestor &rest list)
"Return list composed of first argument (a list) physically appended to rest."
(nconc list ancestor))
(eq -1 (% (save-excursion (skip-chars-backward "\\\\")) 2)))
\f
;; Indentation stuff.
-(defun sh-must-be-shell-mode ()
- "Signal an error if not in Shell-script mode."
- (unless (eq major-mode 'sh-mode)
- (error "This buffer is not in Shell-script mode")))
-
(defun sh-must-support-indent ()
"*Signal an error if the shell type for this buffer is not supported.
Also, the buffer must be in Shell-script mode."
- (sh-must-be-shell-mode)
(unless sh-indent-supported-here
- (error "This buffer's shell type is not supported for this command")))
+ (error "This buffer's shell does not support indentation through Emacs")))
(defun sh-make-vars-local ()
"Make the indentation variables local to this buffer.
To revert all these variables to the global values, use
command `sh-reset-indent-vars-to-global-values'."
(interactive)
- (sh-must-be-shell-mode)
(mapcar 'make-local-variable sh-var-list)
(message "Indentation variable are now local."))
"Reset local indentation variables to the global values.
Then, if variable `sh-make-vars-local' is non-nil, make them local."
(interactive)
- (sh-must-be-shell-mode)
(mapcar 'kill-local-variable sh-var-list)
(if sh-make-vars-local
(mapcar 'make-local-variable sh-var-list)))
\t%s."
sh-basic-offset
- (mapconcat (lambda (x)
- (nth (1- (length x)) x))
- sh-symbol-list "\n\t"))))
+ (mapconcat (lambda (x)
+ (nth (1- (length x)) x))
+ sh-symbol-list "\n\t"))))
(concat
;; The following shows the global not the local value!
;; (format "Current value of %s is %s\n\n" var (symbol-value var))
(defun sh-in-comment-or-string (start)
"Return non-nil if START is in a comment or string."
(save-excursion
- (let (state)
- (beginning-of-line)
- (setq state (parse-partial-sexp (point) start nil nil nil t))
- (or (nth 3 state)(nth 4 state)))))
+ (let ((state (syntax-ppss start)))
+ (or (nth 3 state) (nth 4 state)))))
(defun sh-goto-matching-if ()
"Go to the matching if for a fi.
;; Note: setting result to t means we are done and will return nil.
;;(This function never returns just t.)
(cond
- ((equal (get-text-property (point) 'syntax-table) sh-here-doc-syntax)
+ ((or (and (boundp 'font-lock-string-face)
+ (eq (get-text-property (point) 'face) font-lock-string-face))
+ (eq (get-text-property (point) 'face) sh-heredoc-face))
(setq result t)
(setq have-result t))
((looking-at "\\s-*#") ; was (equal this-kw "#")
(setq have-result nil)
))
) ;; cond
-
+
(unless have-result
;; Continuation lines are handled specially
(if (sh-this-is-a-continuation)
(cond
((and (equal x ")")
(equal (get-text-property (1- (point)) 'syntax-table)
- sh-special-syntax))
+ sh-st-punc))
(sh-debug "Case label) here")
(setq x 'case-label)
(if (setq val (sh-check-rule 2 x))
(sh-debug "No prev line!")
(sh-debug "result: %s align-point: %s" result align-point)
)
-
+
(if align-point
;; was: (setq result (append result (list (list t align-point))))
(setq result (append (list (list t align-point)) result))
)
(sh-debug "result is now: %s" result)
-
+
(or result
(if prev-line-end
(setq result (list (list t prev-line-end)))
(setq result (list (list '= 'sh-first-lines-indent)))
))
-
+
(if (eq result t)
(setq result nil))
(sh-debug "result is: %s" result)
"Back to end of previous non-comment non-empty line.
Go to beginning of logical line unless END is non-nil, in which case
we go to the end of the previous line and do not check for continuations."
- (sh-must-be-shell-mode)
(save-excursion
(beginning-of-line)
(forward-comment (- (point-max)))
(unless end (beginning-of-line))
(when (and (not (bobp))
- (equal (get-text-property (1- (point)) 'syntax-table)
- sh-here-doc-syntax))
- (let ((p1 (previous-single-property-change (1- (point)) 'syntax-table)))
+ (equal (get-text-property (1- (point)) 'face)
+ sh-heredoc-face))
+ (let ((p1 (previous-single-property-change (1- (point)) 'face)))
(when p1
(goto-char p1)
- (forward-line -1)
- (if end (end-of-line)))))
+ (if end
+ (end-of-line)
+ (beginning-of-line)))))
(unless end
;; we must check previous lines to see if they are continuation lines
;; if so, we must return position of first of them
(setq found nil))
(or found
(sh-debug "Did not find prev stmt.")))
- found
- )))
+ found)))
(defun sh-get-word ()
;; Possible return values:
;; nil - nothing
;; a string - possibly a keyword
- ;;
+ ;;
(if (bolp)
nil
(let ((going t)
(buffer-substring (point)
(progn (skip-chars-forward "^ \t\n;")(point)))
(unless and-move
- (goto-char start)))
- ))
+ (goto-char start)))))
(defun sh-find-prev-matching (open close &optional depth)
"Find a matching token for a set of opening and closing keywords.
(defun sh-indent-line ()
"Indent the current line."
(interactive)
- (sh-must-be-shell-mode)
(let ((indent (sh-calculate-indent)) shift-amt beg end
(pos (- (point-max) (point))))
(when indent
((numberp (setq sval (sh-var-value var)))
(setq ival (sh-calculate-indent info))
(setq diff (- curr-indent ival))
-
+
(sh-debug "curr-indent: %d ival: %d diff: %d var:%s sval %s"
curr-indent ival diff var sval)
(setq new-val (+ sval diff))
(defun sh-mark-init (buffer)
"Initialize a BUFFER to be used by `sh-mark-line'."
- (let ((main-buffer (current-buffer)))
- (save-excursion
- (set-buffer (get-buffer-create buffer))
- (erase-buffer)
- (occur-mode)
- (setq occur-buffer main-buffer)
- )))
+ (save-excursion
+ (set-buffer (get-buffer-create buffer))
+ (erase-buffer)
+ (occur-mode)
+ ))
(defun sh-mark-line (message point buffer &optional add-linenum occur-point)
If OCCUR-POINT is non-nil then the line is marked as a new occurrence
so that `occur-next' and `occur-prev' will work."
(let ((m1 (make-marker))
- (main-buffer (current-buffer))
start
(line ""))
(when point
(set-buffer (get-buffer buffer))
(set-buffer (get-buffer-create buffer))
(occur-mode)
- (setq occur-buffer main-buffer)
)
(goto-char (point-max))
(setq start (point))
(setq occur-point (point)))
(insert message)
(if point
- (put-text-property start (point) 'mouse-face 'highlight))
+ (add-text-properties
+ start (point)
+ '(mouse-face highlight
+ help-echo "mouse-2: go to the line where I learned this")))
(insert "\n")
(if point
(progn
- (put-text-property start (point) 'occur m1)
+ (put-text-property start (point) 'occur-target m1)
(if occur-point
- (put-text-property occur-point (1+ occur-point)
- 'occur-point t))
+ (put-text-property start occur-point
+ 'occur-match t))
))
)))
;; Is this really worth having?
(defvar sh-learned-buffer-hook nil
"*An abnormal hook, called with an alist of learned variables.")
-;;; Example of how to use sh-learned-buffer-hook
-;;
+;; Example of how to use sh-learned-buffer-hook
+;;
;; (defun what-i-learned (list)
;; (let ((p list))
;; (save-excursion
;; (setq p (cdr p)))
;; (insert ")\n")
;; )))
-;;
+;;
;; (add-hook 'sh-learned-buffer-hook 'what-i-learned)
(format "Suggested sh-basic-offset: %d" suggested))
nil out-buffer))))
-
+
(setq learned-var-list
(append (list (list 'sh-indent-comment comment-col (point-max)))
learned-var-list))
(car (car x)))
;; result is nil here
))
- result
- )))
-
-
-;; The default font-lock-unfontify-region-function removes
-;; syntax-table properties, and so removes our information.
-(defun sh-font-lock-unfontify-region-function (beg end)
- (let* ((modified (buffer-modified-p)) (buffer-undo-list t)
- (inhibit-read-only t) (inhibit-point-motion-hooks t)
- before-change-functions after-change-functions
- deactivate-mark buffer-file-name buffer-file-truename)
- (remove-text-properties beg end '(face nil))
- (when (and (not modified) (buffer-modified-p))
- (set-buffer-modified-p nil))))
-
-(defun sh-set-char-syntax (where new-prop)
- "Set the character's syntax table property at WHERE to be NEW-PROP."
- (or where
- (setq where (point)))
- (let ((inhibit-modification-hooks t))
- (put-text-property where (1+ where) 'syntax-table new-prop)
- (add-text-properties where (1+ where)
- '(face sh-st-face rear-nonsticky t))
- ))
-
-
-(defun sh-check-paren-in-case ()
- "Make syntax class of case label's right parenthesis not close parenthesis.
-If this parenthesis is a case alternative, set its syntax class to a word."
- (let ((start (point))
- state prev-line)
- ;; First test if this is a possible candidate, the first "(" or ")"
- ;; on the line; then, if go, check prev line is ;; or case.
- (save-excursion
- (beginning-of-line)
- ;; stop at comment or when depth becomes -1
- (setq state (parse-partial-sexp (point) start -1 nil nil t))
- (if (and
- (= (car state) -1)
- (= (point) start)
- (setq prev-line (sh-prev-line nil)))
- (progn
- (goto-char prev-line)
- (beginning-of-line)
- ;; (setq case-stmt-start (point))
- ;; (if (looking-at "\\(^\\s-*case[^-a-z0-9_]\\|[^#]*;;\\s-*$\\)")
- (if (sh-search-word "\\(case\\|;;\\)" start)
- (sh-set-char-syntax (1- start) sh-special-syntax)
- ))))))
-
-(defun sh-electric-rparen ()
- "Insert a right parenthesis and check if it is a case alternative.
-If so, its syntax class is set to word, and its text property
-is set to have face `sh-st-face'."
- (interactive)
- (insert ")")
- (if sh-electric-rparen-needed-here
- (sh-check-paren-in-case)))
-
-(defun sh-electric-hash ()
- "Insert a hash, but check it is preceded by \"$\".
-If so, it is given a syntax type of comment.
-Its text property has face `sh-st-face'."
- (interactive)
- (let ((pos (point)))
- (insert "#")
- (if (eq (char-before pos) ?$)
- (sh-set-char-syntax pos sh-st-punc))))
-
-(defun sh-electric-less (arg)
- "Insert a \"<\" and see if this is the start of a here-document.
-If so, the syntax class is set so that it will not be automatically
-reindented.
-Argument ARG if non-nil disables this test."
- (interactive "*P")
- (let ((p1 (point)) p2 p3)
- (sh-maybe-here-document arg) ;; call the original fn in sh-script.el.
- (setq p2 (point))
- (if (/= (+ p1 (prefix-numeric-value arg)) p2)
- (save-excursion
- (forward-line 1)
- (end-of-line)
- (setq p3 (point))
- (sh-set-here-doc-region p2 p3))
- )))
-
-(defun sh-set-here-doc-region (start end)
- "Mark a here-document from START to END so that it will not be reindented."
- (interactive "r")
- ;; Make the whole thing have syntax type word...
- ;; That way sexp movement doens't worry about any parentheses.
- ;; A disadvantage of this is we can't use forward-word within a
- ;; here-doc, which is annoying.
- (let ((inhibit-modification-hooks t))
- (put-text-property start end 'syntax-table sh-here-doc-syntax)
- (put-text-property start end 'face 'sh-heredoc-face)
- (put-text-property (1- end) end 'rear-nonsticky t)
- (put-text-property start (1+ start) 'front-sticky t)
- ))
-
-(defun sh-remove-our-text-properties ()
- "Remove text properties relating to right parentheses and here documents."
- (interactive)
- (save-excursion
- (goto-char (point-min))
- (while (not (eobp))
- (let ((plist (text-properties-at (point)))
- (next-change
- (or (next-single-property-change (point) 'syntax-table
- (current-buffer) )
- (point-max))))
- ;; Process text from point to NEXT-CHANGE...
- (if (get-text-property (point) 'syntax-table)
- (progn
- (sh-debug "-- removing props from %d to %d --"
- (point) next-change)
- (remove-text-properties (point) next-change
- '(syntax-table nil))
- (remove-text-properties (point) next-change '(face nil))
- ))
- (goto-char next-change)))
- ))
-
-;; (defun sh-search-word (word &optional limit)
-;; "Search forward for regexp WORD occurring as a word not in string nor comment.
-;; If found, returns non nil with the match available in \(match-string 2\).
-;; Yes 2, not 1, since we build a regexp to guard against false matches
-;; such as matching \"a-case\" when we are searching for \"case\".
-;; If not found, it returns nil.
-;; The search maybe limited by optional argument LIMIT."
-;; (interactive "sSearch for: ")
-;; (let ((found nil)
-;; ;; Cannot use \\b here since it matches "-" and "_"
-;; (regexp (sh-mkword-regexp word))
-;; start state where)
-;; (setq start (point))
-;; (while (and (setq start (point))
-;; (not found)
-;; (re-search-forward regexp limit t))
-;; ;; Found str; check it is not in a comment or string.
-;; (setq state
-;; ;; Stop on comment:
-;; (parse-partial-sexp start (point) nil nil nil 'syntax_table))
-;; (if (setq where (nth 8 state))
-;; ;; in comment or string
-;; (if (= where -1)
-;; (setq found (point))
-;; (if (eq (char-after where) ?#)
-;; (end-of-line)
-;; (goto-char where)
-;; (unless (sh-safe-forward-sexp)
-;; ;; If the above fails we must either give up or
-;; ;; move forward and try again.
-;; (forward-line 1))
-;; ))
-;; ;; not in comment or string, so accept it
-;; (setq found (point))
-;; ))
-;; found
-;; ))
-
-(defun sh-search-word (word &optional limit)
- "Search forward for regexp WORD occurring as a word not in string nor comment.
-If found, returns non-nil, with the match available in \(match-string 2\).
-Yes, that is 2, not 1.
-If not found, it returns nil.
-The search may be limited by optional argument LIMIT."
- (interactive "sSearch for: ")
- (let ((found nil)
- start state where match)
- (setq start (point))
- (while (and (not found)
- (re-search-forward word limit t))
- (setq match (match-data))
- ;; Found the word as a string; check it occurs as a word.
- (when (and (or (= (match-beginning 0) (point-min))
- (save-excursion
- (goto-char (1- (match-beginning 0)))
- (looking-at "[^-a-z0-9_]")))
- (or (= (point) (point-max))
- (looking-at "[^-a-z0-9_]")))
- ;; Check it is not in a comment or string.
- (setq state
- ;; Stop on comment:
- (parse-partial-sexp start (point) nil nil nil 'syntax_table))
- (if (setq where (nth 8 state))
- ;; in comment or string
- (if (= where -1)
- (setq found (point))
- (if (eq (char-after where) ?#)
- (end-of-line)
- (goto-char where)
- (unless (sh-safe-forward-sexp)
- ;; If the above fails we must either give up or
- ;; move forward and try again.
- (forward-line 1))))
- ;; not in comment or string, so accept it
- (setq found (point)))
- (setq start (point))))
- (when found
- (set-match-data match)
- (goto-char (1- (match-beginning 0)))
- (looking-at (sh-mkword-regexp word))
- (goto-char found))
- found
- ))
-
-
-(defun sh-scan-case ()
- "Scan a case statement for right parens belonging to case alternatives.
-Mark each as having syntax `sh-special-syntax'.
-Called from scan-buff. If ok, return non-nil."
- (let (end
- state
- (depth 1) ;; we are called at a "case"
- (start (point))
- (return t))
- ;; We enter here at a case statement
- ;; First, find limits of the case.
- (while (and (> depth 0)
- (sh-search-word "\\(case\\|esac\\)"))
- (if (equal (match-string 2) "case")
- (setq depth (1+ depth))
- (setq depth (1- depth))))
- ;; (message "end of search for esac at %d depth=%d" (point) depth)
- (setq end (point))
- (goto-char start)
- ;; if we found the esac, then fix all appropriate ')'s in the region
- (if (zerop depth)
- (progn
- (while (< (point) end)
- ;; search for targetdepth of -1 meaning extra right paren
- (setq state (parse-partial-sexp (point) end -1 nil nil nil))
- (if (and (= (car state) -1)
- (= (char-before) ?\)))
- (progn
- ;; (message "At %d state is %s" (point) state)
- ;; (message "Fixing %d" (point))
- (sh-set-char-syntax (1- (point)) sh-special-syntax)
- ;; we could advance to the next ";;" perhaps
- )
- ;; (message "? Not found at %d" (point)) ; ok, could be "]"
- ))
- (goto-char end))
- (message "No matching esac for case at %d" start)
- (setq return nil)
- )
- return
- ))
-
-
-;; FIXME: This loses big time on very large files (such as CVS' sanity.sh).
-(defun sh-scan-buffer ()
- "Scan a sh buffer for case statements and here-documents.
-
-For each case alternative found, mark its \")\" with a text property
-so that its syntax class is no longer a close parenthesis character.
-
-Each here-document is also marked so that it is effectively immune
-from indentation changes."
- ;; Do not call this interactively, call `sh-rescan-buffer' instead.
- (sh-must-be-shell-mode)
- (let ((n 0)
- (initial-buffer-modified-p (buffer-modified-p))
- start end where label ws)
- (save-excursion
- (goto-char (point-min))
- ;; 1. Scan for ")" in case statements.
- (while (and ;; (re-search-forward "^[^#]*\\bcase\\b" nil t)
- (sh-search-word "\\(case\\|esac\\)")
- ;; (progn (message "Found a case at %d" (point)) t)
- (sh-scan-case)))
- ;; 2. Scan for here docs
- (goto-char (point-min))
- ;; while (re-search-forward "<<\\(-?\\)\\(\\s-*\\)\\(.*\\)$" nil t)
- (while (re-search-forward "<<\\(-?\\)" nil t)
- (unless (sh-in-comment-or-string (match-beginning 0))
- ;; (setq label (match-string 3))
- (setq label (sh-get-word))
- (if (string= (match-string 1) "-")
- ;; if <<- then we allow whitespace
- (setq ws "\\s-*")
- ;; otherwise we don't
- (setq ws ""))
- (while (string-match "['\"\\]" label)
- (setq label (replace-match "" nil nil label)))
- (if (setq n (string-match "\\s-+$" label))
- (setq label (substring label 0 n)))
- (forward-line 1)
- ;; the line containing the << could be continued...
- (while (sh-this-is-a-continuation)
- (forward-line 1))
- (setq start (point))
- (if (re-search-forward (concat "^" ws (regexp-quote label)
- "\\s-*$")
- nil t)
- (sh-set-here-doc-region start (point))
- (sh-debug "missing here-doc delimiter `%s'" label))))
- ;; 3. Scan for $# -- make the "#" a punctuation not a comment
- (goto-char (point-min))
- (let (state)
- (while (and (not (eobp))
- (setq state (parse-partial-sexp
- (1+ (point))(point-max) nil nil nil t))
- (nth 4 state))
- (goto-char (nth 8 state))
- (sh-debug "At %d %s" (point) (eq (char-before) ?$))
- (if (eq (char-before) ?$)
- (sh-set-char-syntax (point) sh-st-punc) ;; not a comment!
- (end-of-line) ;; if this *was* a comment, ignore rest of line!
- )))
- ;; 4. Hide these changes from making a previously unmodified
- ;; buffer into a modified buffer.
- (if sh-debug
- (if initial-buffer-modified-p
- (message "buffer was initially modified")
- (message
- "buffer not initially modified - so clearing modified flag")))
- (set-buffer-modified-p initial-buffer-modified-p)
- )))
-
-(defun sh-rescan-buffer ()
- "Rescan the buffer for case alternative parentheses and here documents."
- (interactive)
- (if (eq major-mode 'sh-mode)
- (let ((inhibit-read-only t))
- (sh-remove-our-text-properties)
- (message "Re-scanning buffer...")
- (sh-scan-buffer)
- (message "Re-scanning buffer...done")
- )))
+ result)))
;; ========================================================================
< "default:" \n
> _ \n
resume:
- < < "endsw")
+ < < "endsw" \n)
(es)
(rc "expression: "
> "switch( " str " ) {" \n
"case *" > \n
> _ \n
resume:
- ?} > )
+ ?\} > \n)
(sh "expression: "
> "case " str " in" \n
> (read-string "pattern: ")
> "*" (propertize ")" 'syntax-table sh-st-punc) \n
> _ \n
resume:
- "esac" > ))
+ "esac" > \n))
(define-skeleton sh-for
"Insert a for loop. See `sh-feature'."
4 " ( "
6 " )"
15 '<
- 16 "end"
- )
+ 16 "end")
(es eval sh-modify rc
4 " = ")
(rc eval sh-modify sh
2 "for( "
6 " ) {"
- 15 ?} )
+ 15 ?\} )
(sh "Index variable: "
> "for " str " in " _ "; do" \n
> _ | ?$ & (sh-remember-variable str) \n
- "done" > ))
+ "done" > \n))
"while( $" str " <= " (read-string "upper limit: ") " )" \n
> _ ?$ str \n
"@ " str "++" \n
- < "end")
+ < "end" \n)
(es eval sh-modify rc
4 " =")
(ksh88 "Index variable: "
(read-string "upper limit: ")
" )); do" \n
> _ ?$ (sh-remember-variable str) > \n
- "done" > )
+ "done" > \n)
(posix "Index variable: "
> str "=1" \n
"while [ $" str " -le "
" ]; do" \n
> _ ?$ str \n
str ?= (sh-add (sh-remember-variable str) 1) \n
- "done" > )
+ "done" > \n)
(rc "Index variable: "
> "for( " str " in" " `{awk 'BEGIN { for( i=1; i<="
(read-string "upper limit: ")
"; i++ ) print i }'`}) {" \n
> _ ?$ (sh-remember-variable str) \n
- ?} >)
+ ?\} > \n)
(sh "Index variable: "
> "for " str " in `awk 'BEGIN { for( i=1; i<="
(read-string "upper limit: ")
"; i++ ) print i }'`; do" \n
> _ ?$ (sh-remember-variable str) \n
- "done" > ))
+ "done" > \n))
(defun sh-shell-initialize-variables ()
(ksh88 "name: "
"function " str " {" \n
> _ \n
- < "}")
+ < "}" \n)
(rc eval sh-modify ksh88
1 "fn ")
(sh ()
"() {" \n
> _ \n
- < "}"))
+ < "}" \n))
< "else" \n
> _ \n
resume:
- < "endif")
+ < "endif" \n)
(es "condition: "
> "if { " str " } {" \n
> _ \n
"} {" > \n
> _ \n
resume:
- ?} > )
+ ?\} > \n)
(rc "condition: "
> "if( " str " ) {" \n
> _ \n
"} else {" > \n
> _ \n
resume:
- ?} >
- )
+ ?\} > \n)
(sh "condition: "
'(setq input (sh-feature sh-test))
> "if " str "; then" \n
"else" > \n
> \n
resume:
- "fi" > ))
+ "fi" > \n))
(es nil
> "forever {" \n
> _ \n
- ?} > )
+ ?\} > \n)
(zsh "factor: "
> "repeat " str "; do" > \n
> \n
- "done" > ))
+ "done" > \n))
;;;(put 'sh-repeat 'menu-enable '(sh-feature sh-repeat))
(ksh88 "Index variable: "
> "select " str " in " _ "; do" \n
> ?$ str \n
- "done" > )
- (bash eval sh-append ksh88)
- )
+ "done" > \n)
+ (bash eval sh-append ksh88))
;;;(put 'sh-select 'menu-enable '(sh-feature sh-select))
(not (bolp))
?\n)
"exit:\n"
- "rm $tmp* >&/dev/null" >)
+ "rm $tmp* >&/dev/null" > \n)
(es (file-name-nondirectory (buffer-file-name))
> "local( signals = $signals sighup sigint; tmp = /tmp/" str
".$pid ) {" \n
"throw $e" \n
"} {" > \n
_ \n
- ?} > \n
- ?} > )
+ ?\} > \n
+ ?\} > \n)
(ksh88 eval sh-modify sh
7 "EXIT")
(rc (file-name-nondirectory (buffer-file-name))
> "tmp = /tmp/" str ".$pid" \n
- "fn sigexit { rm $tmp^* >[2]/dev/null }")
+ "fn sigexit { rm $tmp^* >[2]/dev/null }" \n)
(sh (file-name-nondirectory (buffer-file-name))
> "TMP=${TMPDIR:-/tmp}/" str ".$$" \n
- "trap \"rm $TMP* 2>/dev/null\" " ?0))
+ "trap \"rm $TMP* 2>/dev/null\" " ?0 \n))
'(setq input (sh-feature sh-test))
> "until " str "; do" \n
> _ \n
- "done" > ))
+ "done" > \n))
;;;(put 'sh-until 'menu-enable '(sh-feature sh-until))
3 "while( "
5 " )"
10 '<
- 11 "end" )
+ 11 "end")
(es eval sh-modify sh
3 "while { "
5 " } {"
- 10 ?} )
+ 10 ?\} )
(rc eval sh-modify sh
3 "while( "
5 " ) {"
- 10 ?} )
+ 10 ?\} )
(sh "condition: "
'(setq input (sh-feature sh-test))
> "while " str "; do" \n
> _ \n
- "done" > ))
+ "done" > \n))
resume:
< < "endsw" \n
"shift" \n
- < "end")
+ < "end" \n)
(ksh88 eval sh-modify sh
16 "print"
18 "${0##*/}"
"esac" >
\n "done"
> \n
- "shift " (sh-add "OPTIND" -1)))
+ "shift " (sh-add "OPTIND" -1) \n))