;;; Date: 14 Aug 91 15:20:01 GMT
;; Perl code editing commands for Emacs
-;; Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc.
+;; Copyright (C) 1985-1996 Bob Olson, Ilya Zakharevich
-;; This file is not (yet) part of GNU Emacs.
+;; This file is not (yet) part of GNU Emacs. It may be distributed
+;; either under the same terms as GNU Emacs, or under the same terms
+;; as Perl. You should have received a copy of Perl Artistic license
+;; along with the Perl distribution.
;; 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
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
;;; Corrections made by Ilya Zakharevich ilya@math.mps.ohio-state.edu
;;; XEmacs changes by Peter Arius arius@informatik.uni-erlangen.de
-;; $Id: cperl-mode.el,v 1.19 1996/01/31 01:14:31 ilya Exp ilya $
+;; $Id: cperl-mode.el,v 1.41 1997/11/17 18:09:39 ilya Exp ilya $
;;; To use this mode put the following into your .emacs file:
;;; in your .emacs file. (Emacs rulers do not consider it politically
;;; correct to make whistles enabled by default.)
+;;; DO NOT FORGET to read micro-docs. (available from `Perl' menu). <<<<<<
+;;; or as help on variables `cperl-tips', `cperl-problems', <<<<<<
+;;; `cperl-non-problems', `cperl-praise'. <<<<<<
+
;;; Additional useful commands to put into your .emacs file:
;; (setq auto-mode-alist
-;; (append '(("\\.[pP][Llm]$" . perl-mode)) auto-mode-alist ))
+;; (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode)) auto-mode-alist ))
;; (setq interpreter-mode-alist (append interpreter-mode-alist
;; '(("miniperl" . perl-mode))))
-;;; The mode information (on C-h m) provides customization help.
+;;; The mode information (on C-h m) provides some customization help.
;;; If you use font-lock feature of this mode, it is advisable to use
-;;; eather lazy-lock-mode or fast-lock-mode (available on ELisp
+;;; either lazy-lock-mode or fast-lock-mode (available on ELisp
;;; archive in files lazy-lock.el and fast-lock.el). I prefer lazy-lock.
;;; Faces used now: three faces for first-class and second-class keywords
;;; not define them, so you need to define them manually. Maybe you have
;;; an obsolete font-lock from 19.28 or earlier. Upgrade.
-;;; If you have grayscale monitor, and do not have the variable
+;;; If you have a grayscale monitor, and do not have the variable
;;; font-lock-display-type bound to 'grayscale, insert
;;; (setq font-lock-display-type 'grayscale)
-;;; to your .emacs file.
+;;; into your .emacs file.
-;;;; This mode supports font-lock, imenu and compile-mode. In the
+;;;; This mode supports font-lock, imenu and mode-compile. In the
;;;; hairy version font-lock is on, but you should activate imenu
-;;;; yourself (note that compile-mode is not standard yet). Well, you
+;;;; yourself (note that mode-compile is not standard yet). Well, you
;;;; can use imenu from keyboard anyway (M-x imenu), but it is better
;;;; to bind it like that:
;;; Fontifies the package name after import/no/bootstrap.
;;; Added new entry to menu with meta-info about the mode.
+;;;; After 1.19:
+;;; Prefontification works much better with 19.29. Should be checked
+;;; with 19.30 as well.
+;;; Some misprints in docs corrected.
+;;; Now $a{-text} and -text => "blah" are fontified as strings too.
+;;; Now the pod search is much stricter, so it can help you to find
+;;; pod sections which are broken because of whitespace before =blah
+;;; - just observe the fontification.
+
+;;;; After 1.20
+;;; Anonymous subs are indented with respect to the level of
+;;; indentation of `sub' now.
+;;; {} is recognized as hash after `bless' and `return'.
+;;; Anonymous subs are split by `cperl-linefeed' as well.
+;;; Electric parens embrace a region if present.
+;;; To make `cperl-auto-newline' useful,
+;;; `cperl-auto-newline-after-colon' is introduced.
+;;; `cperl-electric-parens' is now t or nul. The old meaning is moved to
+;;; `cperl-electric-parens-string'.
+;;; `cperl-toggle-auto-newline' introduced, put on C-c C-a.
+;;; `cperl-toggle-abbrev' introduced, put on C-c C-k.
+;;; `cperl-toggle-electric' introduced, put on C-c C-e.
+;;; Beginning-of-defun-regexp was not anchored.
+
+;;;; After 1.21
+;;; Auto-newline grants `cperl-extra-newline-before-brace' if "{" is typed
+;;; after ")".
+;;; {} is recognized as expression after `tr' and friends.
+
+;;;; After 1.22
+;;; Entry Hierarchy added to imenu. Very primitive so far.
+;;; One needs newer `imenu-go'.el. A patch to `imenu' is needed as well.
+;;; Writes its own TAGS files.
+;;; Class viewer based on TAGS files. Does not trace @ISA so far.
+;;; 19.31: Problems with scan for PODs corrected.
+;;; First POD header correctly fontified.
+;;; I needed (setq imenu-use-keymap-menu t) to get good imenu in 19.31.
+;;; Apparently it makes a lot of hierarchy code obsolete...
+
+;;;; After 1.23
+;;; Tags filler now scans *.xs as well.
+;;; The info from *.xs scan is used by the hierarchy viewer.
+;;; Hierarchy viewer documented.
+;;; Bug in 19.31 imenu documented.
+
+;;;; After 1.24
+;;; New location for info-files mentioned,
+;;; Electric-; should work better.
+;;; Minor bugs with POD marking.
+
+;;;; After 1.25 (probably not...)
+;;; `cperl-info-page' introduced.
+;;; To make `uncomment-region' working, `comment-region' would
+;;; not insert extra space.
+;;; Here documents delimiters better recognized
+;;; (empty one, and non-alphanums in quotes handled). May be wrong with 1<<14?
+;;; `cperl-db' added, used in menu.
+;;; imenu scan removes text-properties, for better debugging
+;;; - but the bug is in 19.31 imenu.
+;;; formats highlighted by font-lock and prescan, embedded comments
+;;; are not treated.
+;;; POD/friends scan merged in one pass.
+;;; Syntax class is not used for analyzing the code, only char-syntax
+;;; may be checked against _ or'ed with w.
+;;; Syntax class of `:' changed to be _.
+;;; `cperl-find-bad-style' added.
+
+;;;; After 1.25
+;;; When search for here-documents, we ignore commented << in simplest cases.
+;;; `cperl-get-help' added, available on C-h v and from menu.
+;;; Auto-help added. Default with `cperl-hairy', switchable on/off
+;;; with startup variable `cperl-lazy-help-time' and from
+;;; menu. Requires `run-with-idle-timer'.
+;;; Highlighting of @abc{@efg} was wrong - interchanged two regexps.
+
+;;;; After 1.27
+;;; Indentation: At toplevel after a label - fixed.
+;;; 1.27 was put to archives in binary mode ===> DOSish :-(
+
+;;;; After 1.28
+;;; Thanks to Martin Buchholz <mrb@Eng.Sun.COM>: misprints in
+;;; comments and docstrings corrected, XEmacs support cleaned up.
+;;; The closing parenths would enclose the region into matching
+;;; parens under the same conditions as the opening ones.
+;;; Minor updates to `cperl-short-docs'.
+;;; Will not consider <<= as start of here-doc.
+
+;;;; After 1.29
+;;; Added an extra advice to look into Micro-docs. ;-).
+;;; Enclosing of region when you press a closing parenth is regulated by
+;;; `cperl-electric-parens-string'.
+;;; Minor updates to `cperl-short-docs'.
+;;; `initialize-new-tags-table' called only if present (Does this help
+;;; with generation of tags under XEmacs?).
+;;; When creating/updating tag files, new info is written at the old place,
+;;; or at the end (is this a wanted behaviour? I need this in perl build directory).
+
+;;;; After 1.30
+;;; All the keywords from keywords.pl included (maybe with dummy explanation).
+;;; No auto-help inside strings, comment, here-docs, formats, and pods.
+;;; Shrinkwrapping of info, regulated by `cperl-max-help-size',
+;;; `cperl-shrink-wrap-info-frame'.
+;;; Info on variables as well.
+;;; Recognision of HERE-DOCS improved yet more.
+;;; Autonewline works on `}' without warnings.
+;;; Autohelp works again on $_[0].
+
+;;;; After 1.31
+;;; perl-descr.el found its author - hi, Johan!
+;;; Some support for correct indent after here-docs and friends (may
+;;; be superseeded by eminent change to Emacs internals).
+;;; Should work with older Emaxen as well ( `-style stuff removed).
+
+;;;; After 1.32
+
+;;; Started to add support for `syntax-table' property (should work
+;;; with patched Emaxen), controlled by
+;;; `cperl-use-syntax-table-text-property'. Currently recognized:
+;;; All quote-like operators: m, s, y, tr, qq, qw, qx, q,
+;;; // in most frequent context:
+;;; after block or
+;;; ~ { ( = | & + - * ! , ;
+;;; or
+;;; while if unless until and or not xor split grep map
+;;; Here-documents, formats, PODs,
+;;; ${...}
+;;; 'abc$'
+;;; sub a ($); sub a ($) {}
+;;; (provide 'cperl-mode) was missing!
+;;; `cperl-after-expr-p' is now much smarter after `}'.
+;;; `cperl-praise' added to mini-docs.
+;;; Utilities try to support subs-with-prototypes.
+
+;;;; After 1.32.1
+;;; `cperl-after-expr-p' is now much smarter after "() {}" and "word {}":
+;;; if word is "else, map, grep".
+;;; Updated for new values of syntax-table constants.
+;;; Uses `help-char' (at last!) (disabled, does not work?!)
+;;; A couple of regexps where missing _ in character classes.
+;;; -s could be considered as start of regexp, 1../blah/ was not,
+;;; as was not /blah/ at start of file.
+
+;;;; After 1.32.2
+;;; "\C-hv" was wrongly "\C-hf"
+;;; C-hv was not working on `[index()]' because of [] in skip-chars-*.
+;;; `__PACKAGE__' supported.
+;;; Thanks for Greg Badros: `cperl-lazy-unstall' is more complete,
+;;; `cperl-get-help' is made compatible with `query-replace'.
+
+;;;; As of Apr 15, development version of 19.34 supports
+;;;; `syntax-table' text properties. Try setting
+;;;; `cperl-use-syntax-table-text-property'.
+
+;;;; After 1.32.3
+;;; We scan for s{}[] as well (in simplest situations).
+;;; We scan for $blah'foo as well.
+;;; The default is to use `syntax-table' text property if Emacs is good enough.
+;;; `cperl-lineup' is put on C-M-| (=C-M-S-\\).
+;;; Start of `cperl-beautify-regexp'.
+
+;;;; After 1.32.4
+;;; `cperl-tags-hier-init' did not work in text-mode.
+;;; `cperl-noscan-files-regexp' had a misprint.
+;;; Generation of Class Hierarchy was broken due to a bug in `x-popup-menu'
+;;; in 19.34.
+
+;;;; After 1.33:
+;;; my,local highlight vars after {} too.
+;;; TAGS could not be created before imenu was loaded.
+;;; `cperl-indent-left-aligned-comments' created.
+;;; Logic of `cperl-indent-exp' changed a little bit, should be more
+;;; robust w.r.t. multiline strings.
+;;; Recognition of blah'foo takes into account strings.
+;;; Added '.al' to the list of Perl extensions.
+;;; Class hierarchy is "mostly" sorted (need to rethink algorthm
+;;; of pruning one-root-branch subtrees to get yet better sorting.)
+;;; Regeneration of TAGS was busted.
+;;; Can use `syntax-table' property when generating TAGS
+;;; (governed by `cperl-use-syntax-table-text-property-for-tags').
+
+;;;; After 1.35:
+;;; Can process several =pod/=cut sections one after another.
+;;; Knows of `extproc' when under `emx', indents with `__END__' and `__DATA__'.
+;;; `cperl-under-as-char' implemented (XEmacs people like broken behaviour).
+;;; Beautifier for regexps fixed.
+;;; `cperl-beautify-level', `cperl-contract-level' coded
+;;;
+;;;; Emacs's 20.2 problems:
+;;; `imenu.el' has bugs, `imenu-add-to-menubar' does not work.
+;;; Couple of others problems with 20.2 were reported, my ability to check/fix
+;;; them is very reduced now.
+
+;;;; After 1.36:
+;;; 'C-M-|' in XEmacs fixed
+
+;;;; After 1.37:
+;;; &&s was not recognized as start of regular expression;
+;;; Will "preprocess" the contents of //e part of s///e too;
+;;; What to do with s# blah # foo #e ?
+;;; Should handle s;blah;foo;; better.
+;;; Now the only known problems with regular expression recognition:
+;;;;;;; s<foo>/bar/ - different delimiters (end ignored)
+;;;;;;; s/foo/\\bar/ - backslash at start of subst (made into one chunk)
+;;;;;;; s/foo// - empty subst (made into one chunk + '/')
+;;;;;;; s/foo/(bar)/ - start-group at start of subst (internal group will not match backwards)
+
+;;;; After 1.38:
+;;; We highlight closing / of s/blah/foo/e;
+;;; This handles s# blah # foo #e too;
+;;; s//blah/, s///, s/blah// works again, and s#blah## too, the algorithm
+;;; is much simpler now;
+;;; Next round of changes: s\\\ works, s<blah>/foo/,
+;;; comments between the first and the second part allowed
+;;; Another problem discovered:
+;;;;;;; s[foo] <blah>e - e part delimited by different <> (will not match)
+;;; `cperl-find-pods-heres' somehow maybe called when string-face is undefined
+;;; - put a stupid workaround for 20.1
+
+;;;; After 1.39:
+;;; Could indent here-docs for comments;
+;;; These problems fixed:
+;;;;;;; s/foo/\\bar/ - backslash at start of subst (made into two chunk)
+;;;;;;; s[foo] <blah>e - "e" part delimited by "different" <> (will match)
+;;; Matching brackets honor prefices, may expand abbreviations;
+;;; When expanding abbrevs, will remove last char only after
+;;; self-inserted whitespace;
+;;; More convenient "Refress hard constructs" in menu;
+;;; `cperl-add-tags-recurse', `cperl-add-tags-recurse-noxs'
+;;; added (for -batch mode);
+;;; Better handling of errors when scanning for Perl constructs;
+;;;;;;; Possible "problem" with class hierarchy in Perl distribution
+;;;;;;; directory: ./ext duplicates ./lib;
+;;; Write relative paths for generated TAGS;
+
+;;;; After 1.40:
+;;; s /// may be separated by "\n\f" too;
+;;; `s #blah' recognized as a comment;
+;;; Would highlight s/abc//s wrong;
+;;; Debugging code in `cperl-electric-keywords' was leaking a message;
+
+(defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
+\f
(defvar cperl-extra-newline-before-brace nil
"*Non-nil means that if, elsif, while, until, else, for, foreach
and do constructs look like:
(defvar cperl-auto-newline nil
"*Non-nil means automatically newline before and after braces,
-and after colons and semicolons, inserted in CPerl code.")
+and after colons and semicolons, inserted in CPerl code. The following
+\\[cperl-electric-backspace] will remove the inserted whitespace.
+Insertion after colons requires both this variable and
+`cperl-auto-newline-after-colon' set.")
+
+(defvar cperl-auto-newline-after-colon nil
+ "*Non-nil means automatically newline even after colons.
+Subject to `cperl-auto-newline' setting.")
(defvar cperl-tab-always-indent t
"*Non-nil means TAB in CPerl mode should always reindent the current line,
Can be overwritten by `cperl-hairy' if nil.")
(defvar cperl-electric-lbrace-space nil
- "*Non-nil (and non-null) means { after $ in CPerl buffers should be preceeded by ` '.
+ "*Non-nil (and non-null) means { after $ in CPerl buffers should be preceded by ` '.
Can be overwritten by `cperl-hairy' if nil.")
-(defvar cperl-electric-parens ""
- "*List of parentheses that should be electric in CPerl, or null.
-Can be overwritten by `cperl-hairy' to \"({[<\" if not 'null.")
+(defvar cperl-electric-parens-string "({[]})<"
+ "*String of parentheses that should be electric in CPerl.
+Closing ones are electric only if the region is highlighted.")
+
+(defvar cperl-electric-parens nil
+ "*Non-nil (and non-null) means parentheses should be electric in CPerl.
+Can be overwritten by `cperl-hairy' if nil.")
+(defvar cperl-electric-parens-mark
+ (and window-system
+ (or (and (boundp 'transient-mark-mode) ; For Emacs
+ transient-mark-mode)
+ (and (boundp 'zmacs-regions) ; For XEmacs
+ zmacs-regions)))
+ "*Not-nil means that electric parens look for active mark.
+Default is yes if there is visual feedback on mark.")
(defvar cperl-electric-linefeed nil
"*If true, LFD should be hairy in CPerl, otherwise C-c LFD is hairy.
The opposite behaviour is always available if prefixed with C-c.
Can be overwritten by `cperl-hairy' if nil.")
+(defvar cperl-lazy-help-time nil
+ "*Not-nil (and non-null) means to show lazy help after given idle time.")
+
(defvar cperl-pod-face 'font-lock-comment-face
"*The result of evaluation of this expression is used for pod highlighting.")
"*Not-nil means look for pod and here-docs sections during startup.
You can always make lookup from menu or using \\[cperl-find-pods-heres].")
+(defvar cperl-imenu-addback nil
+ "*Not-nil means add backreferences to generated `imenu's.
+May require patched `imenu' and `imenu-go'.")
+
+(defvar cperl-max-help-size 66
+ "*Non-nil means shrink-wrapping of info-buffer allowed up to these percents.")
+
+(defvar cperl-shrink-wrap-info-frame t
+ "*Non-nil means shrink-wrapping of info-buffer-frame allowed.")
+
+(defvar cperl-info-page "perl"
+ "*Name of the info page containing perl docs.
+Older version of this page was called `perl5', newer `perl'.")
+
+(defvar cperl-use-syntax-table-text-property
+ (boundp 'parse-sexp-lookup-properties)
+ "*Non-nil means CPerl sets up and uses `syntax-table' text property.")
+
+(defvar cperl-use-syntax-table-text-property-for-tags
+ cperl-use-syntax-table-text-property
+ "*Non-nil means: set up and use `syntax-table' text property generating TAGS.")
+
+(defvar cperl-scan-files-regexp "\\.\\([pP][Llm]\\|xs\\)$"
+ "*Regexp to match files to scan when generating TAGS.")
+
+(defvar cperl-noscan-files-regexp "/\\(\\.\\.?\\|SCCS\\|RCS\\|blib\\)$"
+ "*Regexp to match files/dirs to skip when generating TAGS.")
+
+(defvar cperl-regexp-indent-step nil
+ "*indentation used when beautifying regexps.
+If `nil', the value of `cperl-indent-level' will be used.")
+
+(defvar cperl-indent-left-aligned-comments t
+ "*Non-nil means that the comment starting in leftmost column should indent.")
+
+(defvar cperl-under-as-char t
+ "*Non-nil means that the _ (underline) should be treated as word char.")
+
+
\f
;;; Short extra-docs.
(defvar cperl-tips 'please-ignore-this-line
"Get newest version of this package from
- ftp://ftp.math.ohio-state.edu/pub/users/ilya/lisp
+ ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs
and/or
ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl
-Get support packages font-lock-extra.el, imenu-go.el from the same place.
-\(Look for other files there too... ;-) Get a patch for imenu.el in 19.29.
-Note that for 19.30 you should use choose-color.el *instead* of
-font-lock-extra.el (and you will not get smart highlighting in C :-().
+Get support packages choose-color.el (or font-lock-extra.el before
+19.30), imenu-go.el from the same place. \(Look for other files there
+too... ;-) Get a patch for imenu.el in 19.29. Note that for 19.30 and
+later you should use choose-color.el *instead* of font-lock-extra.el
+\(and you will not get smart highlighting in C :-().
Note that to enable Compile choices in the menu you need to install
-compile-mode.el.
+mode-compile.el.
Get perl5-info from
+ $CPAN/doc/manual/info/perl-info.tar.gz
+older version was on
http://www.metronet.com:70/9/perlinfo/perl5/manual/perl5-info.tar.gz
-\(may be quite obsolete, but still useful).
-If you use imenu-go, run imenu on perl5-info buffer (you can do it from
-CPerl menu).
+If you use imenu-go, run imenu on perl5-info buffer (you can do it
+from CPerl menu). If many files are related, generate TAGS files from
+Tools/Tags submenu in CPerl menu.
+
+If some class structure is too complicated, use Tools/Hierarchy-view
+from CPerl menu, or hierarchic view of imenu. The second one uses the
+current buffer only, the first one requires generation of TAGS from
+CPerl/Tools/Tags menu beforehand.
+
+Run CPerl/Tools/Insert-spaces-if-needed to fix your lazy typing.
+
+Switch auto-help on/off with CPerl/Tools/Auto-help.
Before reporting (non-)problems look in the problem section on what I
know about them.")
(defvar cperl-problems 'please-ignore-this-line
"Emacs has a _very_ restricted syntax parsing engine.
-It may be corrected on the level of C ocde, please look in the
-`non-problems' section if you want to volonteer.
+It may be corrected on the level of C code, please look in the
+`non-problems' section if you want to volunteer.
CPerl mode tries to corrects some Emacs misunderstandings, however,
-for effeciency reasons the degree of correction is different for
+for efficiency reasons the degree of correction is different for
different operations. The partially corrected problems are: POD
sections, here-documents, regexps. The operations are: highlighting,
indentation, electric keywords, electric braces.
This may be confusing, since the regexp s#//#/#\; may be highlighted
-as a comment, but it will recognized as a regexp by the indentation
+as a comment, but it will be recognized as a regexp by the indentation
code. Or the opposite case, when a pod section is highlighted, but
-breaks the indentation of the following code.
+may break the indentation of the following code (though indentation
+should work if the balance of delimiters is not broken by POD).
The main trick (to make $ a \"backslash\") makes constructions like
-${aaa} look like unbalanced braces. The only trick I can think out is
+${aaa} look like unbalanced braces. The only trick I can think of is
to insert it as $ {aaa} (legal in perl5, not in perl4).
Similar problems arise in regexps, when /(\\s|$)/ should be rewritten
-as /($|\\s)/. Note that such a transpositinon is not always possible
+as /($|\\s)/. Note that such a transposition is not always possible
:-(. " )
(defvar cperl-non-problems 'please-ignore-this-line
-"As you know from `problems' section, Perl syntax too hard for CPerl.
+"As you know from `problems' section, Perl syntax is too hard for CPerl.
Most the time, if you write your own code, you may find an equivalent
\(and almost as readable) expression.
-Try to help it: add comments with embedded quotes to fix CPerl
+Try to help CPerl: add comments with embedded quotes to fix CPerl
misunderstandings about the end of quotation:
$a='500$'; # ';
You won't need it too often. The reason: $ \"quotes\" the following
character (this saves a life a lot of times in CPerl), thus due to
-Emacs parsing rules it does not consider tick after the dollar as a
-closing one, but as a usual character.
+Emacs parsing rules it does not consider tick (i.e., ' ) after a
+dollar as a closing one, but as a usual character.
Now the indentation code is pretty wise. The only drawback is that it
relies on Emacs parsing to find matching parentheses. And Emacs
1 if ( s#//#/# );
will.
+By similar reasons
+ s\"abc\"def\";
+will confuse CPerl a lot.
+
If you still get wrong indentation in situation that you think the
code should be able to parse, try:
Pods are treated _very_ rudimentally. Here-documents are not treated
at all (except highlighting and inhibiting indentation). (This may
change some time. RMS approved making syntax lookup recognize text
-attributes, but volonteers are needed to change Emacs C code.)
+attributes, but volunteers are needed to change Emacs C code.)
To speed up coloring the following compromises exist:
a) sub in $mypackage::sub may be highlighted.
b) -z in [a-z] may be highlighted.
c) if your regexp contains a keyword (like \"s\"), it may be highlighted.
+
+
+Imenu in 19.31 is broken. Set `imenu-use-keymap-menu' to t, and remove
+`car' before `imenu-choose-buffer-index' in `imenu'.
+")
+
+(defvar cperl-praise 'please-ignore-this-line
+ "RMS asked me to list good things about CPerl. Here they go:
+
+0) It uses the newest `syntax-table' property ;-);
+
+1) It does 99% of Perl syntax correct (as opposed to 80-90% in Perl
+mode - but the latter number may have improved too in last years) even
+without `syntax-table' property; When using this property, it should
+handle 99.995% of lines correct - or somesuch.
+
+2) It is generally belived to be \"the most user-friendly Emacs
+package\" whatever it may mean (I doubt that the people who say similar
+things tried _all_ the rest of Emacs ;-), but this was not a lonely
+voice);
+
+3) Everything is customizable, one-by-one or in a big sweep;
+
+4) It has many easily-accessable \"tools\":
+ a) Can run program, check syntax, start debugger;
+ b) Can lineup vertically \"middles\" of rows, like `=' in
+ a = b;
+ cc = d;
+ c) Can insert spaces where this impoves readability (in one
+ interactive sweep over the buffer);
+ d) Has support for imenu, including:
+ 1) Separate unordered list of \"interesting places\";
+ 2) Separate TOC of POD sections;
+ 3) Separate list of packages;
+ 4) Hierarchical view of methods in (sub)packages;
+ 5) and functions (by the full name - with package);
+ e) Has an interface to INFO docs for Perl; The interface is
+ very flexible, including shrink-wrapping of
+ documentation buffer/frame;
+ f) Has a builtin list of one-line explanations for perl constructs.
+ g) Can show these explanations if you stay long enough at the
+ corresponding place (or on demand);
+ h) Has an enhanced fontification (using 3 or 4 additional faces
+ comparing to font-lock - basically, different
+ namespaces in Perl have different colors);
+ i) Can construct TAGS basing on its knowledge of Perl syntax,
+ the standard menu has 6 different way to generate
+ TAGS (if by directory, .xs files - with C-language
+ bindings - are included in the scan);
+ j) Can build a hierarchical view of classes (via imenu) basing
+ on generated TAGS file;
+ k) Has electric parentheses, electric newlines, uses Abbrev
+ for electric logical constructs
+ while () {}
+ with different styles of expansion (context sensitive
+ to be not so bothering). Electric parentheses behave
+ \"as they should\" in a presence of a visible region.
+ l) Changes msb.el \"on the fly\" to insert a group \"Perl files\";
+
+5) The indentation engine was very smart, but most of tricks may be
+not needed anymore with the support for `syntax-table' property. Has
+progress indicator for indentation (with `imenu' loaded).
+
+6) Indent-region improves inline-comments as well;
+
+7) Fill-paragraph correctly handles multi-line comments;
")
\f
;;; Portability stuff:
-(defsubst cperl-xemacs-p ()
- (string-match "XEmacs\\|Lucid" emacs-version))
+(defmacro cperl-define-key (fsf-key definition &optional xemacs-key)
+ (` (define-key cperl-mode-map
+ (, (if xemacs-key
+ (` (if cperl-xemacs-p (, xemacs-key) (, fsf-key)))
+ fsf-key))
+ (, definition))))
(defvar del-back-ch (car (append (where-is-internal 'delete-backward-char)
(where-is-internal 'backward-delete-char-untabify)))
(and (vectorp del-back-ch) (= (length del-back-ch) 1)
(setq del-back-ch (aref del-back-ch 0)))
-(if (cperl-xemacs-p)
- ;; "Active regions" are on: use region only if active
- ;; "Active regions" are off: use region unconditionally
- (defun cperl-use-region-p ()
- (if zmacs-regions (mark) t))
+(if cperl-xemacs-p
+ (progn
+ ;; "Active regions" are on: use region only if active
+ ;; "Active regions" are off: use region unconditionally
+ (defun cperl-use-region-p ()
+ (if zmacs-regions (mark) t))
+ (defun cperl-mark-active () (mark)))
(defun cperl-use-region-p ()
- (if transient-mark-mode mark-active t)))
+ (if transient-mark-mode mark-active t))
+ (defun cperl-mark-active () mark-active))
(defsubst cperl-enable-font-lock ()
- (or (cperl-xemacs-p) window-system))
+ (or cperl-xemacs-p window-system))
(if (boundp 'unread-command-events)
- (if (cperl-xemacs-p)
+ (if cperl-xemacs-p
(defun cperl-putback-char (c) ; XEmacs >= 19.12
(setq unread-command-events (list (character-to-event c))))
(defun cperl-putback-char (c) ; Emacs 19
(interactive "r")
(comment-region beg end -1)))
+(defvar cperl-do-not-fontify
+ (if (string< emacs-version "19.30")
+ 'fontified
+ 'lazy-lock)
+ "Text property which inhibits refontification.")
+
+(defsubst cperl-put-do-not-fontify (from to)
+ (put-text-property (max (point-min) (1- from))
+ to cperl-do-not-fontify t))
+
+(defvar cperl-mode-hook nil
+ "Hook run by `cperl-mode'.")
+
+\f
;;; Probably it is too late to set these guys already, but it can help later:
(setq auto-mode-alist
- (append '(("\\.[pP][Llm]$" . perl-mode)) auto-mode-alist ))
+ (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode)) auto-mode-alist ))
(and (boundp 'interpreter-mode-alist)
(setq interpreter-mode-alist (append interpreter-mode-alist
'(("miniperl" . perl-mode)))))
(if cperl-mode-map nil
(setq cperl-mode-map (make-sparse-keymap))
- (define-key cperl-mode-map "{" 'cperl-electric-lbrace)
- (define-key cperl-mode-map "[" 'cperl-electric-paren)
- (define-key cperl-mode-map "(" 'cperl-electric-paren)
- (define-key cperl-mode-map "<" 'cperl-electric-paren)
- (define-key cperl-mode-map "}" 'cperl-electric-brace)
- (define-key cperl-mode-map ";" 'cperl-electric-semi)
- (define-key cperl-mode-map ":" 'cperl-electric-terminator)
- (define-key cperl-mode-map "\C-j" 'newline-and-indent)
- (define-key cperl-mode-map "\C-c\C-j" 'cperl-linefeed)
- (define-key cperl-mode-map "\e\C-q" 'cperl-indent-exp) ; Usually not bound
- ;;(define-key cperl-mode-map "\M-q" 'cperl-fill-paragraph)
- ;;(define-key cperl-mode-map "\e;" 'cperl-indent-for-comment)
- (define-key cperl-mode-map "\177" 'backward-delete-char-untabify)
- (define-key cperl-mode-map "\t" 'cperl-indent-command)
- (if (cperl-xemacs-p)
- ;; don't clobber the backspace binding:
- (define-key cperl-mode-map [(control h) f] 'cperl-info-on-command)
- (define-key cperl-mode-map "\C-hf" 'cperl-info-on-command))
- (if (cperl-xemacs-p)
- ;; don't clobber the backspace binding:
- (define-key cperl-mode-map [(control c) (control h) f]
- 'cperl-info-on-current-command)
- (define-key cperl-mode-map "\C-c\C-hf" 'cperl-info-on-current-command))
- (if (and (cperl-xemacs-p)
+ (cperl-define-key "{" 'cperl-electric-lbrace)
+ (cperl-define-key "[" 'cperl-electric-paren)
+ (cperl-define-key "(" 'cperl-electric-paren)
+ (cperl-define-key "<" 'cperl-electric-paren)
+ (cperl-define-key "}" 'cperl-electric-brace)
+ (cperl-define-key "]" 'cperl-electric-rparen)
+ (cperl-define-key ")" 'cperl-electric-rparen)
+ (cperl-define-key ";" 'cperl-electric-semi)
+ (cperl-define-key ":" 'cperl-electric-terminator)
+ (cperl-define-key "\C-j" 'newline-and-indent)
+ (cperl-define-key "\C-c\C-j" 'cperl-linefeed)
+ (cperl-define-key "\C-c\C-a" 'cperl-toggle-auto-newline)
+ (cperl-define-key "\C-c\C-k" 'cperl-toggle-abbrev)
+ (cperl-define-key "\C-c\C-e" 'cperl-toggle-electric)
+ (cperl-define-key "\e\C-q" 'cperl-indent-exp) ; Usually not bound
+ (cperl-define-key [?\C-\M-\|] 'cperl-lineup
+ [(control meta |)])
+ ;;(cperl-define-key "\M-q" 'cperl-fill-paragraph)
+ ;;(cperl-define-key "\e;" 'cperl-indent-for-comment)
+ (cperl-define-key "\177" 'cperl-electric-backspace)
+ (cperl-define-key "\t" 'cperl-indent-command)
+ ;; don't clobber the backspace binding:
+ (cperl-define-key "\C-c\C-hf" 'cperl-info-on-current-command
+ [(control c) (control h) f])
+ (cperl-define-key "\C-hf"
+ ;;(concat (char-to-string help-char) "f") ; does not work
+ 'cperl-info-on-command
+ [(control h) f])
+ (cperl-define-key "\C-hv"
+ ;;(concat (char-to-string help-char) "v") ; does not work
+ 'cperl-get-help
+ [(control h) v])
+ (if (and cperl-xemacs-p
(<= emacs-minor-version 11) (<= emacs-major-version 19))
(progn
;; substitute-key-definition is usefulness-deenhanced...
- (define-key cperl-mode-map "\M-q" 'cperl-fill-paragraph)
- (define-key cperl-mode-map "\e;" 'cperl-indent-for-comment)
- (define-key cperl-mode-map "\e\C-\\" 'cperl-indent-region))
+ (cperl-define-key "\M-q" 'cperl-fill-paragraph)
+ (cperl-define-key "\e;" 'cperl-indent-for-comment)
+ (cperl-define-key "\e\C-\\" 'cperl-indent-region))
(substitute-key-definition
'indent-sexp 'cperl-indent-exp
cperl-mode-map global-map)
'indent-for-comment 'cperl-indent-for-comment
cperl-mode-map global-map)))
+(defvar cperl-menu)
(condition-case nil
(progn
(require 'easymenu)
["Mark function" mark-defun t]
["Indent expression" cperl-indent-exp t]
["Fill paragraph/comment" cperl-fill-paragraph t]
+ "----"
["Line up a construction" cperl-lineup (cperl-use-region-p)]
+ ["Beautify a regexp" cperl-beautify-regexp
+ cperl-use-syntax-table-text-property]
+ ["Beautify a group in regexp" cperl-beautify-level
+ cperl-use-syntax-table-text-property]
+ ["Contract a group in regexp" cperl-contract-level
+ cperl-use-syntax-table-text-property]
+ ["Refresh \"hard\" constructions" cperl-find-pods-heres t]
"----"
["Indent region" cperl-indent-region (cperl-use-region-p)]
- ["Comment region" comment-region (cperl-use-region-p)]
- ["Uncomment region" uncomment-region (cperl-use-region-p)]
+ ["Comment region" cperl-comment-region (cperl-use-region-p)]
+ ["Uncomment region" cperl-uncomment-region (cperl-use-region-p)]
"----"
["Run" mode-compile (fboundp 'mode-compile)]
["Kill" mode-compile-kill (and (fboundp 'mode-compile-kill)
["Next error" next-error (get-buffer "*compilation*")]
["Check syntax" cperl-check-syntax (fboundp 'mode-compile)]
"----"
- ["Debugger" perldb t]
+ ["Debugger" cperl-db t]
"----"
("Tools"
["Imenu" imenu (fboundp 'imenu)]
+ ["Insert spaces if needed" cperl-find-bad-style t]
+ ["Class Hierarchy from TAGS" cperl-tags-hier-init t]
+ ;;["Update classes" (cperl-tags-hier-init t) tags-table-list]
["Imenu on info" cperl-imenu-on-info (featurep 'imenu)]
("Tags"
- ["Create tags for current file" cperl-etags t]
- ["Add tags for current file" (cperl-etags t) t]
- ["Create tags for Perl files in directory" (cperl-etags nil t) t]
- ["Add tags for Perl files in directory" (cperl-etags t t) t]
+;;; ["Create tags for current file" cperl-etags t]
+;;; ["Add tags for current file" (cperl-etags t) t]
+;;; ["Create tags for Perl files in directory" (cperl-etags nil t) t]
+;;; ["Add tags for Perl files in directory" (cperl-etags t t) t]
+;;; ["Create tags for Perl files in (sub)directories"
+;;; (cperl-etags nil 'recursive) t]
+;;; ["Add tags for Perl files in (sub)directories"
+;;; (cperl-etags t 'recursive) t])
+;;;; cperl-write-tags (&optional file erase recurse dir inbuffer)
+ ["Create tags for current file" (cperl-write-tags nil t) t]
+ ["Add tags for current file" (cperl-write-tags) t]
+ ["Create tags for Perl files in directory"
+ (cperl-write-tags nil t nil t) t]
+ ["Add tags for Perl files in directory"
+ (cperl-write-tags nil nil nil t) t]
["Create tags for Perl files in (sub)directories"
- (cperl-etags nil 'recursive) t]
+ (cperl-write-tags nil t t t) t]
["Add tags for Perl files in (sub)directories"
- (cperl-etags t 'recursive) t])
- ["Recalculate PODs" cperl-find-pods-heres t]
+ (cperl-write-tags nil nil t t) t])
["Define word at point" imenu-go-find-at-position
(fboundp 'imenu-go-find-at-position)]
["Help on function" cperl-info-on-command t]
- ["Help on function at point" cperl-info-on-current-command t])
+ ["Help on function at point" cperl-info-on-current-command t]
+ ["Help on symbol at point" cperl-get-help t]
+ ["Auto-help on" cperl-lazy-install (fboundp 'run-with-idle-timer)]
+ ["Auto-help off" cperl-lazy-unstall
+ (fboundp 'run-with-idle-timer)])
+ ("Toggle..."
+ ["Auto newline" cperl-toggle-auto-newline t]
+ ["Electric parens" cperl-toggle-electric t]
+ ["Electric keywords" cperl-toggle-abbrev t]
+ )
("Indent styles..."
["GNU" (cperl-set-style "GNU") t]
["C++" (cperl-set-style "C++") t]
("Micro-docs"
["Tips" (describe-variable 'cperl-tips) t]
["Problems" (describe-variable 'cperl-problems) t]
- ["Non-problems" (describe-variable 'cperl-non-problems) t]))))
+ ["Non-problems" (describe-variable 'cperl-non-problems) t]
+ ["Praise" (describe-variable 'cperl-praise) t]))))
(error nil))
(autoload 'c-macro-expand "cmacexp"
(defvar cperl-mode-syntax-table nil
"Syntax table in use in Cperl-mode buffers.")
+(defvar cperl-string-syntax-table nil
+ "Syntax table in use in Cperl-mode string-like chunks.")
+
(if cperl-mode-syntax-table
()
(setq cperl-mode-syntax-table (make-syntax-table))
(modify-syntax-entry ?# "<" cperl-mode-syntax-table)
(modify-syntax-entry ?' "\"" cperl-mode-syntax-table)
(modify-syntax-entry ?` "\"" cperl-mode-syntax-table)
- (modify-syntax-entry ?_ "w" cperl-mode-syntax-table)
- (modify-syntax-entry ?| "." cperl-mode-syntax-table))
+ (if cperl-under-as-char
+ (modify-syntax-entry ?_ "w" cperl-mode-syntax-table))
+ (modify-syntax-entry ?: "_" cperl-mode-syntax-table)
+ (modify-syntax-entry ?| "." cperl-mode-syntax-table)
+ (setq cperl-string-syntax-table (copy-syntax-table cperl-mode-syntax-table))
+ (modify-syntax-entry ?$ "." cperl-string-syntax-table)
+ (modify-syntax-entry ?# "." cperl-string-syntax-table) ; (?# comment )
+)
\f
;; provide an alias for working with emacs 19. the perl-mode that comes
;; with it is really bad, and this lets us seamlessly replace it.
(fset 'perl-mode 'cperl-mode)
+(defvar cperl-faces-init)
+;; Fix for msb.el
+(defvar cperl-msb-fixed nil)
(defun cperl-mode ()
"Major mode for editing Perl code.
Expression and list commands understand all C brackets.
\"paren\" to avoid the expansion. The processing of < is special,
since most the time you mean \"less\". Cperl mode tries to guess
whether you want to type pair <>, and inserts is if it
-appropriate. You can set `cperl-electric-parens' to the string that
+appropriate. You can set `cperl-electric-parens-string' to the string that
contains the parenths from the above list you want to be electrical.
+Electricity of parenths is controlled by `cperl-electric-parens'.
+You may also set `cperl-electric-parens-mark' to have electric parens
+look for active mark and \"embrace\" a region if possible.'
CPerl mode provides expansion of the Perl control constructs:
if, else, elsif, unless, while, until, for, and foreach.
it will not do any expansion. See also help on variable
`cperl-extra-newline-before-brace'.
-\\[cperl-linefeed] is a convinience replacement for typing carriage
+\\[cperl-linefeed] is a convenience replacement for typing carriage
return. It places you in the next line with proper indentation, or if
you type it inside the inline block of control construct, like
foreach (@lines) {print; print}
and you are on a boundary of a statement inside braces, it will
transform the construct into a multiline and will place you into an
-apporpriately indented blank line. If you need a usual
+appropriately indented blank line. If you need a usual
`newline-and-indent' behaviour, it is on \\[newline-and-indent],
see documentation on `cperl-electric-linefeed'.
Setting the variable `cperl-font-lock' to t switches on
font-lock-mode, `cperl-electric-lbrace-space' to t switches on
-electric space between $ and {, `cperl-electric-parens' is the string
-that contains parentheses that should be electric in CPerl, setting
-`cperl-electric-keywords' enables electric expansion of control
-structures in CPerl. `cperl-electric-linefeed' governs which one of
-two linefeed behavior is preferable. You can enable all these options
-simultaneously (recommended mode of use) by setting `cperl-hairy' to
-t. In this case you can switch separate options off by setting them
-to `null'.
+electric space between $ and {, `cperl-electric-parens-string' is the
+string that contains parentheses that should be electric in CPerl (see
+also `cperl-electric-parens-mark' and `cperl-electric-parens'),
+setting `cperl-electric-keywords' enables electric expansion of
+control structures in CPerl. `cperl-electric-linefeed' governs which
+one of two linefeed behavior is preferable. You can enable all these
+options simultaneously (recommended mode of use) by setting
+`cperl-hairy' to t. In this case you can switch separate options off
+by setting them to `null'. Note that one may undo the extra whitespace
+inserted by semis and braces in `auto-newline'-mode by consequent
+\\[cperl-electric-backspace].
If your site has perl5 documentation in info format, you can use commands
\\[cperl-info-on-current-command] and \\[cperl-info-on-command] to access it.
`cperl-info-on-command', which one is which is controlled by variable
`cperl-info-on-command-no-prompt' (in turn affected by `cperl-hairy').
+Even if you have no info-format documentation, short one-liner-style
+help is available on \\[cperl-get-help].
+
+It is possible to show this help automatically after some idle
+time. This is regulated by variable `cperl-lazy-help-time'. Default
+with `cperl-hairy' is 5 secs idle time if the value of this variable
+is nil. It is also possible to switch this on/off from the
+menu. Requires `run-with-idle-timer'.
+
+Use \\[cperl-lineup] to vertically lineup some construction - put the
+beginning of the region at the start of construction, and make region
+span the needed amount of lines.
+
Variables `cperl-pod-here-scan', `cperl-pod-here-fontify',
`cperl-pod-face', `cperl-pod-head-face' control processing of pod and
here-docs sections. In a future version results of scan may be used
regardless of where in the line point is when the TAB command is used.
`cperl-auto-newline'
Non-nil means automatically newline before and after braces,
- and after colons and semicolons, inserted in Perl code.
+ and after colons and semicolons, inserted in Perl code. The following
+ \\[cperl-electric-backspace] will remove the inserted whitespace.
+ Insertion after colons requires both this variable and
+ `cperl-auto-newline-after-colon' set.
+ `cperl-auto-newline-after-colon'
+ Non-nil means automatically newline even after colons.
+ Subject to `cperl-auto-newline' setting.
`cperl-indent-level'
Indentation of Perl statements within surrounding block.
The surrounding block's indentation is the indentation
(local-set-key "\C-C\C-J" 'newline-and-indent)))
(if (cperl-val 'cperl-info-on-command-no-prompt)
(progn
- (if (cperl-xemacs-p)
- ;; don't clobber the backspace binding:
- (local-set-key [(control h) f] 'cperl-info-on-current-command)
- (local-set-key "\C-hf" 'cperl-info-on-current-command))
- (if (cperl-xemacs-p)
- ;; don't clobber the backspace binding:
- (local-set-key [(control c) (control h) f]
- 'cperl-info-on-command)
- (local-set-key "\C-c\C-hf" 'cperl-info-on-command))))
+ ;; don't clobber the backspace binding:
+ (cperl-define-key "\C-hf" 'cperl-info-on-current-command [(control h) f])
+ (cperl-define-key "\C-c\C-hf" 'cperl-info-on-command
+ [(control c) (control h) f])))
(setq major-mode 'perl-mode)
(setq mode-name "CPerl")
(if (not cperl-mode-abbrev-table)
(make-local-variable 'comment-start-skip)
(setq comment-start-skip "#+ *")
(make-local-variable 'defun-prompt-regexp)
- (setq defun-prompt-regexp "[ \t]*sub\\s +\\([^ \t\n{;]+\\)\\s *")
+ (setq defun-prompt-regexp "^[ \t]*sub[ \t]+\\([^ \t\n{(;]+\\)[ \t]*")
(make-local-variable 'comment-indent-function)
(setq comment-indent-function 'cperl-comment-indent)
(make-local-variable 'parse-sexp-ignore-comments)
'((perl-font-lock-keywords
perl-font-lock-keywords-1
perl-font-lock-keywords-2))))
+ (if cperl-use-syntax-table-text-property
+ (progn
+ (make-variable-buffer-local 'parse-sexp-lookup-properties)
+ ;; Do not introduce variable if not needed, we check it!
+ (set 'parse-sexp-lookup-properties t)))
(or (fboundp 'cperl-old-auto-fill-mode)
(progn
(fset 'cperl-old-auto-fill-mode (symbol-function 'auto-fill-mode))
(and (boundp 'msb-menu-cond)
(not cperl-msb-fixed)
(cperl-msb-fix))
+ (if (featurep 'easymenu)
+ (easy-menu-add cperl-menu)) ; A NOP under FSF Emacs.
(run-hooks 'cperl-mode-hook)
;; After hooks since fontification will break this
(if cperl-pod-here-scan (cperl-find-pods-heres)))
\f
-;; Fix for msb.el
-(defvar cperl-msb-fixed nil)
+;; Fix for perldb - make default reasonable
+(defun cperl-db ()
+ (interactive)
+ (require 'gud)
+ (perldb (read-from-minibuffer "Run perldb (like this): "
+ (if (consp gud-perldb-history)
+ (car gud-perldb-history)
+ (concat "perl " ;;(file-name-nondirectory
+ ;; I have problems
+ ;; in OS/2
+ ;; otherwise
+ (buffer-file-name)))
+ nil nil
+ '(gud-perldb-history . 1))))
+\f
(defun cperl-msb-fix ()
;; Adds perl files to msb menu, supposes that msb is already loaded
;;; (setq prevc (current-column)))))))
(defun cperl-indent-for-comment ()
- "Substite for `indent-for-comment' in CPerl."
+ "Substitute for `indent-for-comment' in CPerl."
(interactive)
(let (cperl-wrong-comment)
(indent-for-comment)
(progn (cperl-to-comment-or-eol)
(forward-char (length comment-start))))))
+(defun cperl-comment-region (b e arg)
+ "Comment or uncomment each line in the region in CPerl mode.
+See `comment-region'."
+ (interactive "r\np")
+ (let ((comment-start "#"))
+ (comment-region b e arg)))
+
+(defun cperl-uncomment-region (b e arg)
+ "Uncomment or comment each line in the region in CPerl mode.
+See `comment-region'."
+ (interactive "r\np")
+ (let ((comment-start "#"))
+ (comment-region b e (- arg))))
+
+(defvar cperl-brace-recursing nil)
+
(defun cperl-electric-brace (arg &optional only-before)
"Insert character and correct line's indentation.
If ONLY-BEFORE and `cperl-auto-newline', will insert newline before the
-place (even in empty line), but not after."
+place (even in empty line), but not after. If after \")\" and the inserted
+char is \"{\", insert extra newline before only if
+`cperl-extra-newline-before-brace'."
(interactive "P")
- (let (insertpos)
- (if (and (not arg) ; No args, end (of empty line or auto)
- (eolp)
- (or (and (null only-before)
- (save-excursion
- (skip-chars-backward " \t")
- (bolp)))
- (if cperl-auto-newline
- (progn (cperl-indent-line) (newline) t) nil)))
+ (let (insertpos
+ (other-end (if (and cperl-electric-parens-mark
+ (cperl-mark-active)
+ (< (mark) (point)))
+ (mark)
+ nil)))
+ (if (and other-end
+ (not cperl-brace-recursing)
+ (cperl-val 'cperl-electric-parens)
+ (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point)))
+ ;; Need to insert a matching pair
(progn
- (if cperl-auto-newline
- (setq insertpos (point)))
- (insert last-command-char)
- (cperl-indent-line)
- (if (and cperl-auto-newline (null only-before))
- (progn
- (newline)
- (cperl-indent-line)))
(save-excursion
- (if insertpos (progn (goto-char insertpos)
- (search-forward (make-string
- 1 last-command-char))
- (setq insertpos (1- (point)))))
- (delete-char -1))))
- (if insertpos
- (save-excursion
- (goto-char insertpos)
- (self-insert-command (prefix-numeric-value arg)))
- (self-insert-command (prefix-numeric-value arg)))))
+ (setq insertpos (point-marker))
+ (goto-char other-end)
+ (setq last-command-char ?\{)
+ (cperl-electric-lbrace arg insertpos))
+ (forward-char 1))
+ (if (and (not arg) ; No args, end (of empty line or auto)
+ (eolp)
+ (or (and (null only-before)
+ (save-excursion
+ (skip-chars-backward " \t")
+ (bolp)))
+ (and (eq last-command-char ?\{) ; Do not insert newline
+ ;; if after ")" and `cperl-extra-newline-before-brace'
+ ;; is nil, do not insert extra newline.
+ (not cperl-extra-newline-before-brace)
+ (save-excursion
+ (skip-chars-backward " \t")
+ (eq (preceding-char) ?\))))
+ (if cperl-auto-newline
+ (progn (cperl-indent-line) (newline) t) nil)))
+ (progn
+ (self-insert-command (prefix-numeric-value arg))
+ (cperl-indent-line)
+ (if cperl-auto-newline
+ (setq insertpos (1- (point))))
+ (if (and cperl-auto-newline (null only-before))
+ (progn
+ (newline)
+ (cperl-indent-line)))
+ (save-excursion
+ (if insertpos (progn (goto-char insertpos)
+ (search-forward (make-string
+ 1 last-command-char))
+ (setq insertpos (1- (point)))))
+ (delete-char -1))))
+ (if insertpos
+ (save-excursion
+ (goto-char insertpos)
+ (self-insert-command (prefix-numeric-value arg)))
+ (self-insert-command (prefix-numeric-value arg))))))
-(defun cperl-electric-lbrace (arg)
+(defun cperl-electric-lbrace (arg &optional end)
"Insert character, correct line's indentation, correct quoting by space."
(interactive "P")
- (let (pos after (cperl-auto-newline cperl-auto-newline))
+ (let (pos after
+ (cperl-brace-recursing t)
+ (cperl-auto-newline cperl-auto-newline)
+ (other-end (or end
+ (if (and cperl-electric-parens-mark
+ (cperl-mark-active)
+ (> (mark) (point)))
+ (save-excursion
+ (goto-char (mark))
+ (point-marker))
+ nil))))
(and (cperl-val 'cperl-electric-lbrace-space)
(eq (preceding-char) ?$)
(save-excursion
(skip-chars-backward "$")
(looking-at "\\(\\$\\$\\)*\\$\\([^\\$]\\|$\\)"))
- (insert ? ))
- (if (cperl-after-expr-p) nil (setq cperl-auto-newline nil))
+ (insert ?\ ))
+ (if (cperl-after-expr-p nil "{;)") nil (setq cperl-auto-newline nil))
(cperl-electric-brace arg)
- (and (eq last-command-char ?{)
+ (and (cperl-val 'cperl-electric-parens)
+ (eq last-command-char ?{)
(memq last-command-char
- (append (cperl-val 'cperl-electric-parens "" "([{<") nil))
+ (append cperl-electric-parens-string nil))
+ (or (if other-end (goto-char (marker-position other-end)))
+ t)
(setq last-command-char ?} pos (point))
(progn (cperl-electric-brace arg t)
(goto-char pos)))))
(defun cperl-electric-paren (arg)
"Insert a matching pair of parentheses."
(interactive "P")
- (let ((beg (save-excursion (beginning-of-line) (point))))
- (if (and (memq last-command-char
- (append (cperl-val 'cperl-electric-parens "" "([{<") nil))
+ (let ((beg (save-excursion (beginning-of-line) (point)))
+ (other-end (if (and cperl-electric-parens-mark
+ (cperl-mark-active)
+ (> (mark) (point)))
+ (save-excursion
+ (goto-char (mark))
+ (point-marker))
+ nil)))
+ (if (and (cperl-val 'cperl-electric-parens)
+ (memq last-command-char
+ (append cperl-electric-parens-string nil))
(>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
;;(not (save-excursion (search-backward "#" beg t)))
(if (eq last-command-char ?<)
- (cperl-after-expr-p nil "{};(,:=")
+ (progn
+ (and abbrev-mode ; later it is too late, may be after `for'
+ (expand-abbrev))
+ (cperl-after-expr-p nil "{;(,:="))
1))
(progn
- (insert last-command-char)
- (insert (cdr (assoc last-command-char '((?{ .?})
- (?[ . ?])
- (?( . ?))
- (?< . ?>)))))
- (forward-char -1))
- (insert last-command-char)
- )))
+ (self-insert-command (prefix-numeric-value arg))
+ (if other-end (goto-char (marker-position other-end)))
+ (insert (make-string
+ (prefix-numeric-value arg)
+ (cdr (assoc last-command-char '((?{ .?})
+ (?[ . ?])
+ (?( . ?))
+ (?< . ?>))))))
+ (forward-char (- (prefix-numeric-value arg))))
+ (self-insert-command (prefix-numeric-value arg)))))
+
+(defun cperl-electric-rparen (arg)
+ "Insert a matching pair of parentheses if marking is active.
+If not, or if we are not at the end of marking range, would self-insert."
+ (interactive "P")
+ (let ((beg (save-excursion (beginning-of-line) (point)))
+ (other-end (if (and cperl-electric-parens-mark
+ (cperl-val 'cperl-electric-parens)
+ (memq last-command-char
+ (append cperl-electric-parens-string nil))
+ (cperl-mark-active)
+ (< (mark) (point)))
+ (mark)
+ nil))
+ p)
+ (if (and other-end
+ (cperl-val 'cperl-electric-parens)
+ (memq last-command-char '( ?\) ?\] ?\} ?\> ))
+ (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
+ ;;(not (save-excursion (search-backward "#" beg t)))
+ )
+ (progn
+ (self-insert-command (prefix-numeric-value arg))
+ (setq p (point))
+ (if other-end (goto-char other-end))
+ (insert (make-string
+ (prefix-numeric-value arg)
+ (cdr (assoc last-command-char '((?\} . ?\{)
+ (?\] . ?\[)
+ (?\) . ?\()
+ (?\> . ?\<))))))
+ (goto-char (1+ p)))
+ (self-insert-command (prefix-numeric-value arg)))))
(defun cperl-electric-keyword ()
"Insert a construction appropriate after a keyword."
- (let ((beg (save-excursion (beginning-of-line) (point))))
+ (let ((beg (save-excursion (beginning-of-line) (point)))
+ (dollar (and (eq last-command-char ?$)
+ (eq this-command 'self-insert-command)))
+ (delete (and (memq last-command-char '(?\ ?\n ?\t ?\f))
+ (memq this-command '(self-insert-command newline)))))
(and (save-excursion
(backward-sexp 1)
- (cperl-after-expr-p nil "{};:"))
+ (cperl-after-expr-p nil "{;:"))
(save-excursion
(not
(re-search-backward
(save-excursion (or (not (re-search-backward "^=" nil t))
(looking-at "=cut")))
(progn
+ (and dollar (insert " $"))
(cperl-indent-line)
;;(insert " () {\n}")
(cond
)
(or (looking-at "[ \t]\\|$") (insert " "))
(cperl-indent-line)
- (search-backward ")")
- (cperl-putback-char del-back-ch)))))
+ (if dollar (progn (search-backward "$")
+ (delete-char 1)
+ (forward-char -1)
+ (forward-char 1))
+ (search-backward ")"))
+ (if delete
+ (cperl-putback-char del-back-ch))))))
(defun cperl-electric-else ()
"Insert a construction appropriate after a keyword."
(let ((beg (save-excursion (beginning-of-line) (point))))
(and (save-excursion
(backward-sexp 1)
- (cperl-after-expr-p nil "{};:"))
+ (cperl-after-expr-p nil "{;:"))
(save-excursion
(not
(re-search-backward
(pos (point)) start)
(if (and ; Check if we need to split:
; i.e., on a boundary and inside "{...}"
- ;;(not (search-backward "\\(^\\|[^$\\\\]\\)#" beg t))
(save-excursion (cperl-to-comment-or-eol)
- (>= (point) pos))
+ (>= (point) pos)) ; Not in a comment
(or (save-excursion
(skip-chars-backward " \t" beg)
(forward-char -1)
- (looking-at "[;{]"))
- (looking-at "[ \t]*}")
- (re-search-forward "\\=[ \t]*;" end t))
+ (looking-at "[;{]")) ; After { or ; + spaces
+ (looking-at "[ \t]*}") ; Before }
+ (re-search-forward "\\=[ \t]*;" end t)) ; Before spaces + ;
(save-excursion
(and
- (eq (car (parse-partial-sexp pos end -1)) -1)
- (looking-at "[ \t]*\\($\\|#\\)")
- ;;(setq finish (point-marker))
+ (eq (car (parse-partial-sexp pos end -1)) -1)
+ ; Leave the level of parens
+ (looking-at "[,; \t]*\\($\\|#\\)") ; Comma to allow anon subr
+ ; Are at end
(progn
(backward-sexp 1)
(setq start (point-marker))
- (<= start pos))
- ;;(looking-at "[^{}\n]*}[ \t]*$") ; Will fail if there are intervening {}'s
- ;;(search-backward "{" beg t)
- ;;(looking-at "{[^{}\n]*}[ \t]*$")
- )))
- ;;(or (looking-at "[ \t]*}") ; and on a boundary of statements
- ;; (save-excursion
- ;; (skip-chars-backward " \t")
- ;; (forward-char -1)
- ;; (looking-at "[{;]"))))
+ (<= start pos))))) ; Redundant? Are after the
+ ; start of parens group.
(progn
(skip-chars-backward " \t")
(or (memq (preceding-char) (append ";{" nil))
(insert "\n")
(forward-line -1)
(cperl-indent-line)
- ;;(end-of-line)
- ;;(search-backward "{" beg)
(goto-char start)
(or (looking-at "{[ \t]*$") ; If there is a statement
; before, move it to separate line
(forward-line 1) ; We are on the target line
(cperl-indent-line)
(beginning-of-line)
- (or (looking-at "[ \t]*}[ \t]*$") ; If there is a statement
+ (or (looking-at "[ \t]*}[,; \t]*$") ; If there is a statement
; after, move it to separate line
(progn
(end-of-line)
(end-of-line)
(newline-and-indent))
(end-of-line) ; else
- (if (not (looking-at "\n[ \t]*$"))
- (newline-and-indent)
- (forward-line 1)
- (cperl-indent-line)))))
+ (cond
+ ((and (looking-at "\n[ \t]*{$")
+ (save-excursion
+ (skip-chars-backward " \t")
+ (eq (preceding-char) ?\)))) ; Probably if () {} group
+ ; with an extra newline.
+ (forward-line 2)
+ (cperl-indent-line))
+ ((looking-at "\n[ \t]*$") ; Next line is empty - use it.
+ (forward-line 1)
+ (cperl-indent-line))
+ (t
+ (newline-and-indent))))))
(defun cperl-electric-semi (arg)
"Insert character and correct line's indentation."
(defun cperl-electric-terminator (arg)
"Insert character and correct line's indentation."
(interactive "P")
- (let (insertpos (end (point)))
- (if (and (not arg) (eolp)
+ (let (insertpos (end (point))
+ (auto (and cperl-auto-newline
+ (or (not (eq last-command-char ?:))
+ cperl-auto-newline-after-colon))))
+ (if (and ;;(not arg)
+ (eolp)
(not (save-excursion
(beginning-of-line)
(skip-chars-forward " \t")
(let ((pps (parse-partial-sexp (point) end)))
(or (nth 3 pps) (nth 4 pps) (nth 5 pps))))))))
(progn
- (if cperl-auto-newline
- (setq insertpos (point)))
- (insert last-command-char)
+ (self-insert-command (prefix-numeric-value arg))
+ ;;(forward-char -1)
+ (if auto (setq insertpos (point-marker)))
+ ;;(forward-char 1)
(cperl-indent-line)
- (if cperl-auto-newline
+ (if auto
(progn
(newline)
(cperl-indent-line)))
+;; (save-excursion
+;; (if insertpos (progn (goto-char (marker-position insertpos))
+;; (search-forward (make-string
+;; 1 last-command-char))
+;; (setq insertpos (1- (point)))))
+;; (delete-char -1))))
(save-excursion
- (if insertpos (progn (goto-char insertpos)
- (search-forward (make-string
- 1 last-command-char))
- (setq insertpos (1- (point)))))
- (delete-char -1))))
+ (if insertpos (goto-char (1- (marker-position insertpos)))
+ (forward-char -1))
+ (delete-char 1))))
(if insertpos
(save-excursion
(goto-char insertpos)
(self-insert-command (prefix-numeric-value arg)))
(self-insert-command (prefix-numeric-value arg)))))
+(defun cperl-electric-backspace (arg)
+ "Backspace-untabify, or remove the whitespace inserted by an electric key."
+ (interactive "p")
+ (if (and cperl-auto-newline
+ (memq last-command '(cperl-electric-semi
+ cperl-electric-terminator
+ cperl-electric-lbrace))
+ (memq (preceding-char) '(? ?\t ?\n)))
+ (let (p)
+ (if (eq last-command 'cperl-electric-lbrace)
+ (skip-chars-forward " \t\n"))
+ (setq p (point))
+ (skip-chars-backward " \t\n")
+ (delete-region (point) p))
+ (backward-delete-char-untabify arg)))
+
(defun cperl-inside-parens-p ()
(condition-case ()
(save-excursion
(error nil)))
\f
(defun cperl-indent-command (&optional whole-exp)
- (interactive "P")
"Indent current line as Perl code, or in some cases insert a tab character.
If `cperl-tab-always-indent' is non-nil (the default), always indent current line.
Otherwise, indent the current line only if point is at the left margin
means indent rigidly all the lines of the expression starting after point
so that this line becomes properly indented.
The relative indentation among the lines of the expression are preserved."
+ (interactive "P")
(if whole-exp
;; If arg, always indent this line as Perl
;; and shift remaining lines of expression the same amount.
(setq indent (cperl-calculate-indent nil symbol))
(beginning-of-line)
(setq beg (point))
- (cond ((eq indent nil)
+ (cond ((or (eq indent nil) (eq indent t))
(setq indent (current-indentation)))
;;((eq indent t) ; Never?
;; (setq indent (cperl-calculate-indent-within-comment)))
(t
(skip-chars-forward " \t")
(if (listp indent) (setq indent (car indent)))
- (cond ((looking-at "[A-Za-z]+:[^:]")
+ (cond ((looking-at "[A-Za-z_][A-Za-z_0-9]*:[^:]")
(and (> indent 0)
(setq indent (max cperl-min-label-indent
(+ indent cperl-label-offset)))))
'(?w ?_))
(progn
(backward-sexp)
- (looking-at "[a-zA-Z_][a-zA-Z0-9_]*:"))))
+ (looking-at "[a-zA-Z_][a-zA-Z0-9_]*:[^:]"))))
(defun cperl-get-state (&optional parse-start start-state)
;; returns list (START STATE DEPTH PRESTART), START is a good place
(or (memq (preceding-char) (append ";){}$@&%\C-@" nil)) ; Or label! \C-@ at bobp
; Label may be mixed up with `$blah :'
(save-excursion (cperl-after-label))
- (and (eq (char-syntax (preceding-char)) ?w)
+ (and (memq (char-syntax (preceding-char)) '(?w ?_))
(progn
(backward-sexp)
- (or (looking-at "\\sw+[ \t\n\f]*[{#]") ; Method call syntax
+ ;; Need take into account `bless', `return', `tr',...
+ (or (and (looking-at "[a-zA-Z0-9_:]+[ \t\n\f]*[{#]") ; Method call syntax
+ (not (looking-at "\\(bless\\|return\\|qw\\|tr\\|[smy]\\)\\>")))
(progn
(skip-chars-backward " \t\n\f")
- (and (eq (char-syntax (preceding-char)) ?w)
+ (and (memq (char-syntax (preceding-char)) '(?w ?_))
(progn
(backward-sexp)
(looking-at
- "sub[ \t]+\\sw+[ \t\n\f]*[#{]")))))))))
+ "sub[ \t]+[a-zA-Z0-9_:]+[ \t\n\f]*\\(([^()]*)[ \t\n\f]*\\)?[#{]")))))))))
+
+(defvar cperl-look-for-prop '((pod in-pod) (here-doc-delim here-doc-group)))
(defun cperl-calculate-indent (&optional parse-start symbol)
"Return appropriate indentation for current line as Perl code.
In usual case returns an integer: the column to indent to.
Returns nil if line starts inside a string, t if in a comment."
(save-excursion
- (if (memq (get-text-property (point) 'syntax-type) '(pod here-doc)) nil
- (beginning-of-line)
- (let* ((indent-point (point))
- (case-fold-search nil)
+ (if (or
+ (memq (get-text-property (point) 'syntax-type)
+ '(pod here-doc here-doc-delim format))
+ ;; before start of POD - whitespace found since do not have 'pod!
+ (and (looking-at "[ \t]*\n=")
+ (error "Spaces before pod section!"))
+ (and (not cperl-indent-left-aligned-comments)
+ (looking-at "^#")))
+ nil
+ (beginning-of-line)
+ (let ((indent-point (point))
+ (char-after (save-excursion
+ (skip-chars-forward " \t")
+ (following-char)))
+ (in-pod (get-text-property (point) 'in-pod))
+ (pre-indent-point (point))
+ p prop look-prop)
+ (cond
+ (in-pod
+ ;; In the verbatim part, probably code example. What to do???
+ )
+ (t
+ (save-excursion
+ ;; Not in pod
+ (cperl-backward-to-noncomment nil)
+ (setq p (max (point-min) (1- (point)))
+ prop (get-text-property p 'syntax-type)
+ look-prop (or (nth 1 (assoc prop cperl-look-for-prop))
+ 'syntax-type))
+ (if (memq prop '(pod here-doc format here-doc-delim))
+ (progn
+ (goto-char (or (previous-single-property-change p look-prop)
+ (point-min)))
+ (beginning-of-line)
+ (setq pre-indent-point (point)))))))
+ (goto-char pre-indent-point)
+ (let* ((case-fold-search nil)
(s-s (cperl-get-state))
(start (nth 0 s-s))
(state (nth 1 s-s))
(containing-sexp (car (cdr state)))
- (char-after (save-excursion
- (skip-chars-forward " \t")
- (following-char)))
(start-indent (save-excursion
(goto-char start)
(- (current-indentation)
;; Now add a little if this is a continuation line.
(if (or (bobp)
(memq (preceding-char) (append " ;}" nil)) ; Was ?\)
- (memq char-after (append ")]}" nil)))
+ (memq char-after (append ")]}" nil))
+ (and (eq (preceding-char) ?\:) ; label
+ (progn
+ (forward-sexp -1)
+ (skip-chars-backward " \t")
+ (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*[ \t]*:"))))
0
cperl-continued-statement-offset))))
((/= (char-after containing-sexp) ?{)
(t
;; Statement level. Is it a continuation or a new statement?
;; Find previous non-comment character.
- (goto-char indent-point)
+ (goto-char pre-indent-point)
(cperl-backward-to-noncomment containing-sexp)
;; Back up over label lines, since they don't
;; affect whether our line is a continuation.
(or
;; If no, find that first statement and indent like
;; it. If the first statement begins with label, do
- ;; not belive when the indentation of the label is too
+ ;; not believe when the indentation of the label is too
;; small.
(save-excursion
(forward-char 1)
(if (> (current-indentation)
cperl-min-label-indent)
(- (current-indentation) cperl-label-offset)
- ;; Do not belive: `max' is involved
+ ;; Do not believe: `max' is involved
(+ old-indent cperl-indent-level))
(current-column)))))
;; If no previous statement,
(progn
(if (eq (preceding-char) ?\))
(forward-sexp -1))
- ;; Get initial indentation of the line we are on.
- ;; If line starts with label, calculate label indentation
- (if (save-excursion
- (beginning-of-line)
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_]*:[^:]"))
- (if (> (current-indentation) cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- (cperl-calculate-indent
- (if (and parse-start (<= parse-start (point)))
- parse-start)))
- (current-indentation))))))))))))
+ ;; In the case it starts a subroutine, indent with
+ ;; respect to `sub', not with respect to the the
+ ;; first thing on the line, say in the case of
+ ;; anonymous sub in a hash.
+ ;;
+ (skip-chars-backward " \t")
+ (if (and (eq (preceding-char) ?b)
+ (progn
+ (forward-sexp -1)
+ (looking-at "sub\\>"))
+ (setq old-indent
+ (nth 1
+ (parse-partial-sexp
+ (save-excursion (beginning-of-line) (point))
+ (point)))))
+ (progn (goto-char (1+ old-indent))
+ (skip-chars-forward " \t")
+ (current-column))
+ ;; Get initial indentation of the line we are on.
+ ;; If line starts with label, calculate label indentation
+ (if (save-excursion
+ (beginning-of-line)
+ (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
+ (if (> (current-indentation) cperl-min-label-indent)
+ (- (current-indentation) cperl-label-offset)
+ (cperl-calculate-indent
+ (if (and parse-start (<= parse-start (point)))
+ parse-start)))
+ (current-indentation))))))))))))))
(defvar cperl-indent-alist
'((string nil)
(or
;; If no, find that first statement and indent like
;; it. If the first statement begins with label, do
- ;; not belive when the indentation of the label is too
+ ;; not believe when the indentation of the label is too
;; small.
(save-excursion
(forward-char 1)
(if (> (current-indentation)
cperl-min-label-indent)
(list (list 'label-in-block (point)))
- ;; Do not belive: `max' is involved
+ ;; Do not believe: `max' is involved
(list
(list 'label-in-block-min-indent (point))))
;; Before statement
;; If line starts with label, calculate label indentation
(if (save-excursion
(beginning-of-line)
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_]*:[^:]"))
+ (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
(if (> (current-indentation) cperl-min-label-indent)
(- (current-indentation) cperl-label-offset)
(cperl-calculate-indent
Returns true if comment is found."
(let (state stop-in cpoint (lim (progn (end-of-line) (point))))
(beginning-of-line)
- (if (re-search-forward "\\=[ \t]*\\(#\\|$\\)" lim t)
+ (if (or
+ (eq (get-text-property (point) 'syntax-type) 'pod)
+ (re-search-forward "\\=[ \t]*\\(#\\|$\\)" lim t))
(if (eq (preceding-char) ?\#) (progn (backward-char 1) t))
;; Else
(while (not stop-in)
)
(nth 4 state))))
-(defun cperl-find-pods-heres (&optional min max)
- "Scans the buffer for POD sections and here-documents.
+(defsubst cperl-1- (p)
+ (max (point-min) (1- p)))
+
+(defsubst cperl-1+ (p)
+ (min (point-max) (1+ p)))
+
+(defvar cperl-st-cfence '(14)) ; Comment-fence
+(defvar cperl-st-sfence '(15)) ; String-fence
+(defvar cperl-st-punct '(1))
+(defvar cperl-st-word '(2))
+(defvar cperl-st-bra '(4 . ?\>))
+(defvar cperl-st-ket '(5 . ?\<))
+
+(defsubst cperl-modify-syntax-type (at how)
+ (if (< at (point-max))
+ (progn
+ (put-text-property at (1+ at) 'syntax-table how)
+ (put-text-property at (1+ at) 'rear-nonsticky t))))
+
+(defun cperl-protect-defun-start (s e)
+ ;; C code looks for "^\\s(" to skip comment backward in "hard" situations
+ (save-excursion
+ (goto-char s)
+ (while (re-search-forward "^\\s(" e 'to-end)
+ (put-text-property (1- (point)) (point) 'syntax-table cperl-st-punct))))
+
+(defun cperl-commentify (bb e string)
+ (if cperl-use-syntax-table-text-property
+ (progn
+ ;; We suppose that e is _after_ the end of construction, as after eol.
+ (setq string (if string cperl-st-sfence cperl-st-cfence))
+ (cperl-modify-syntax-type bb string)
+ (cperl-modify-syntax-type (1- e) string)
+ (if (and (eq string cperl-st-sfence) (> (- e 2) bb))
+ (put-text-property (1+ bb) (1- e)
+ 'syntax-table cperl-string-syntax-table))
+ (cperl-protect-defun-start bb e))))
+
+(defun cperl-forward-re (lim end is-2arg set-st st-l err-l argument
+ &optional ostart oend)
+ ;; Works *before* syntax recognition is done
+ ;; May modify syntax-type text property if the situation is too hard
+ (let (b starter ender st i i2 go-forward)
+ (skip-chars-forward " \t")
+ ;; ender means matching-char matcher.
+ (setq b (point)
+ starter (char-after b)
+ ;; ender:
+ ender (cdr (assoc starter '(( ?\( . ?\) )
+ ( ?\[ . ?\] )
+ ( ?\{ . ?\} )
+ ( ?\< . ?\> )
+ ))))
+ ;; What if starter == ?\\ ????
+ (if set-st
+ (if (car st-l)
+ (setq st (car st-l))
+ (setcar st-l (make-syntax-table))
+ (setq i 0 st (car st-l))
+ (while (< i 256)
+ (modify-syntax-entry i "." st)
+ (setq i (1+ i)))
+ (modify-syntax-entry ?\\ "\\" st)))
+ (setq set-st t)
+ ;; Whether we have an intermediate point
+ (setq i nil)
+ ;; Prepare the syntax table:
+ (and set-st
+ (if (not ender) ; m/blah/, s/x//, s/x/y/
+ (modify-syntax-entry starter "$" st)
+ (modify-syntax-entry starter (concat "(" (list ender)) st)
+ (modify-syntax-entry ender (concat ")" (list starter)) st)))
+ (condition-case bb
+ (progn
+ (if (and (eq starter (char-after (cperl-1+ b)))
+ (not ender))
+ ;; $ has TeXish matching rules, so $$ equiv $...
+ (forward-char 2)
+ (set-syntax-table st)
+ (forward-sexp 1)
+ (set-syntax-table cperl-mode-syntax-table)
+ ;; Now the problem is with m;blah;;
+ (and (not ender)
+ (eq (preceding-char)
+ (char-after (- (point) 2)))
+ (save-excursion
+ (forward-char -2)
+ (= 0 (% (skip-chars-backward "\\\\") 2)))
+ (forward-char -1)))
+ (and is-2arg ; Have trailing part
+ (not ender)
+ (eq (following-char) starter) ; Empty trailing part
+ (progn
+ (or (eq (char-syntax (following-char)) ?.)
+ ;; Make trailing letter into punctuation
+ (cperl-modify-syntax-type (point) cperl-st-punct))
+ (setq is-2arg nil go-forward t))) ; Ignore the tail
+ (if is-2arg ; Not number => have second part
+ (progn
+ (setq i (point) i2 i)
+ (if ender
+ (if (memq (following-char) '(?\ ?\t ?\n ?\f))
+ (progn
+ (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
+ (goto-char (match-end 0))
+ (skip-chars-forward " \t\n\f"))
+ (setq i2 (point))))
+ (forward-char -1))
+ (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
+ (if ender (modify-syntax-entry ender "." st))
+ (setq set-st nil)
+ (setq
+ ender
+ (cperl-forward-re lim end nil t st-l err-l argument starter ender)
+ ender (nth 2 ender)))))
+ (error (goto-char lim)
+ (setq set-st nil)
+ (or end
+ (message
+ "End of `%s%s%c ... %c' string not found: %s"
+ argument
+ (if ostart (format "%c ... %c" ostart (or oend ostart)) "")
+ starter (or ender starter) bb)
+ (or (car err-l) (setcar err-l b)))))
+ (if set-st
+ (progn
+ (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
+ (if ender (modify-syntax-entry ender "." st))))
+ (list i i2 ender starter go-forward)))
+
+(defun cperl-find-pods-heres (&optional min max non-inter end)
+ "Scans the buffer for hard-to-parse Perl constructions.
If `cperl-pod-here-fontify' is not-nil after evaluation, will fontify
the sections using `cperl-pod-head-face', `cperl-pod-face',
`cperl-here-face'."
(interactive)
(or min (setq min (point-min)))
(or max (setq max (point-max)))
- (let (face head-face here-face b e bb tag err
- (cperl-pod-here-fontify (eval cperl-pod-here-fontify))
+ (let (face head-face here-face b e bb tag qtag b1 e1 argument i c tail state
+ (cperl-pod-here-fontify (eval cperl-pod-here-fontify)) go
(case-fold-search nil) (inhibit-read-only t) (buffer-undo-list t)
- (modified (buffer-modified-p)))
+ (modified (buffer-modified-p))
+ (after-change-functions nil)
+ (state-point (point-min))
+ (st-l '(nil)) (err-l '(nil)) i2
+ ;; Somehow font-lock may be not loaded yet...
+ (font-lock-string-face (if (boundp 'font-lock-string-face)
+ font-lock-string-face
+ 'font-lock-string-face))
+ (search
+ (concat
+ "\\(\\`\n?\\|\n\n\\)="
+ "\\|"
+ ;; One extra () before this:
+ "<<"
+ "\\("
+ ;; First variant "BLAH" or just ``.
+ "\\([\"'`]\\)"
+ "\\([^\"'`\n]*\\)"
+ "\\3"
+ "\\|"
+ ;; Second variant: Identifier or empty
+ "\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)"
+ ;; Check that we do not have <<= or << 30 or << $blah.
+ "\\([^= \t$@%&]\\|[ \t]+[^ \t\n0-9$@%&]\\)"
+ "\\)"
+ "\\|"
+ ;; 1+6 extra () before this:
+ "^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$"
+ (if cperl-use-syntax-table-text-property
+ (concat
+ "\\|"
+ ;; 1+6+2=9 extra () before this:
+ "\\<\\(q[wxq]?\\|[msy]\\|tr\\)\\>"
+ "\\|"
+ ;; 1+6+2+1=10 extra () before this:
+ "\\([?/]\\)" ; /blah/ or ?blah?
+ "\\|"
+ ;; 1+6+2+1+1=11 extra () before this:
+ "\\<sub\\>[ \t]*\\([a-zA-Z_:'0-9]+[ \t]*\\)?\\(([^()]*)\\)"
+ "\\|"
+ ;; 1+6+2+1+1+2=13 extra () before this:
+ "\\$\\(['{]\\)"
+ "\\|"
+ ;; 1+6+2+1+1+2+1=14 extra () before this:
+ "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'"
+ ;; 1+6+2+1+1+2+1+1=15 extra () before this:
+ "\\|"
+ "__\\(END\\|DATA\\)__" ; Commented - does not help with indent...
+ )
+ ""))))
(unwind-protect
(progn
(save-excursion
- (message "Scanning for pods and here-docs...")
+ (or non-inter
+ (message "Scanning for \"hard\" Perl constructions..."))
(if cperl-pod-here-fontify
- (setq face (eval cperl-pod-face)
- head-face (eval cperl-pod-head-face)
- here-face (eval cperl-here-face)))
- (remove-text-properties min max '(syntax-type t))
+ ;; We had evals here, do not know why...
+ (setq face cperl-pod-face
+ head-face cperl-pod-head-face
+ here-face cperl-here-face))
+ (remove-text-properties min max
+ '(syntax-type t in-pod t syntax-table t))
;; Need to remove face as well...
(goto-char min)
- (while (re-search-forward "^=" max t)
- (if (looking-at "cut\\>")
- (progn
- (message "=cut is not preceeded by a pod section")
- (setq err (point)))
- (beginning-of-line)
- (setq b (point) bb b)
- (re-search-forward "^=cut\\>" max 'toend)
- (beginning-of-line 2)
- (setq e (point))
- (put-text-property b e 'in-pod t)
- (goto-char b)
- (while (re-search-forward "\n\n[ \t]" e t)
- (beginning-of-line)
- (put-text-property b (point) 'syntax-type 'pod)
- (put-text-property b (point) 'fontified t) ; Old lazy-lock
- (put-text-property b (point) 'lazy-lock t) ; New lazy-lock
- (if cperl-pod-here-fontify (put-text-property b (point) 'face face))
- (re-search-forward "\n\n[^ \t\f]" e 'toend)
+ (if (and (eq system-type 'emx)
+ (looking-at "extproc[ \t]")) ; Analogue of #!
+ (cperl-commentify min
+ (save-excursion (end-of-line) (point))
+ nil))
+ (while (re-search-forward search max t)
+ (cond
+ ((match-beginning 1) ; POD section
+ ;; "\\(\\`\n?\\|\n\n\\)="
+ (if (looking-at "\n*cut\\>")
+ (progn
+ (message "=cut is not preceded by a POD section")
+ (or (car err-l) (setcar err-l (point))))
(beginning-of-line)
- (setq b (point)))
- (put-text-property (point) e 'syntax-type 'pod)
- (put-text-property (point) e 'fontified t)
- (put-text-property (point) e 'lazy-lock t)
+
+ (setq b (point) bb b)
+ (or (re-search-forward "\n\n=cut\\>" max 'toend)
+ (progn
+ (message "End of a POD section not marked by =cut")
+ (or (car err-l) (setcar err-l b))))
+ (beginning-of-line 2) ; An empty line after =cut is not POD!
+ (setq e (point))
+ (put-text-property b e 'in-pod t)
+ (goto-char b)
+ (while (re-search-forward "\n\n[ \t]" e t)
+ ;; We start 'pod 1 char earlier to include the preceding line
+ (beginning-of-line)
+ (put-text-property (cperl-1- b) (point) 'syntax-type 'pod)
+ (cperl-put-do-not-fontify b (point))
+ ;;(put-text-property (max (point-min) (1- b))
+ ;; (point) cperl-do-not-fontify t)
+ (if cperl-pod-here-fontify (put-text-property b (point) 'face face))
+ (re-search-forward "\n\n[^ \t\f\n]" e 'toend)
+ (beginning-of-line)
+ (setq b (point)))
+ (put-text-property (cperl-1- (point)) e 'syntax-type 'pod)
+ (cperl-put-do-not-fontify (point) e)
+ ;;(put-text-property (max (point-min) (1- (point)))
+ ;; e cperl-do-not-fontify t)
+ (if cperl-pod-here-fontify
+ (progn (put-text-property (point) e 'face face)
+ (goto-char bb)
+ (if (looking-at
+ "=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
+ (put-text-property
+ (match-beginning 1) (match-end 1)
+ 'face head-face))
+ (while (re-search-forward
+ ;; One paragraph
+ "\n\n=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
+ e 'toend)
+ (put-text-property
+ (match-beginning 1) (match-end 1)
+ 'face head-face))))
+ (cperl-commentify bb e nil)
+ (goto-char e)
+ (or (eq e (point-max))
+ (forward-char -1)))) ; Prepare for immediate pod start.
+ ;; Here document
+ ;; We do only one here-per-line
+ ;; 1 () ahead
+ ;; "<<\\(\\([\"'`]\\)\\([^\"'`\n]*\\)\\3\\|\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)\\)"
+ ((match-beginning 2) ; 1 + 1
+ ;; Abort in comment:
+ (setq b (point))
+ (setq state (parse-partial-sexp state-point b nil nil state)
+ state-point b)
+ (if ;;(save-excursion
+ ;; (beginning-of-line)
+ ;; (search-forward "#" b t))
+ (or (nth 3 state) (nth 4 state))
+ (goto-char (match-end 2))
+ (if (match-beginning 5) ;4 + 1
+ (setq b1 (match-beginning 5) ; 4 + 1
+ e1 (match-end 5)) ; 4 + 1
+ (setq b1 (match-beginning 4) ; 3 + 1
+ e1 (match-end 4))) ; 3 + 1
+ (setq tag (buffer-substring b1 e1)
+ qtag (regexp-quote tag))
+ (cond (cperl-pod-here-fontify
+ (put-text-property b1 e1 'face font-lock-reference-face)
+ (cperl-put-do-not-fontify b1 e1)))
+ (forward-line)
+ (setq b (point))
+ (cond ((re-search-forward (concat "^" qtag "$") max 'toend)
+ (if cperl-pod-here-fontify
+ (progn
+ (put-text-property (match-beginning 0) (match-end 0)
+ 'face font-lock-reference-face)
+ (cperl-put-do-not-fontify b (match-end 0))
+ ;;(put-text-property (max (point-min) (1- b))
+ ;; (min (point-max)
+ ;; (1+ (match-end 0)))
+ ;; cperl-do-not-fontify t)
+ (put-text-property b (match-beginning 0)
+ 'face here-face)))
+ (setq e1 (cperl-1+ (match-end 0)))
+ (put-text-property b (match-beginning 0)
+ 'syntax-type 'here-doc)
+ (put-text-property (match-beginning 0) e1
+ 'syntax-type 'here-doc-delim)
+ (put-text-property b e1
+ 'here-doc-group t)
+ (cperl-commentify b e1 nil)
+ (cperl-put-do-not-fontify b (match-end 0)))
+ (t (message "End of here-document `%s' not found." tag)
+ (or (car err-l) (setcar err-l b))))))
+ ;; format
+ ((match-beginning 8)
+ ;; 1+6=7 extra () before this:
+ ;;"^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$"
+ (setq b (point)
+ name (if (match-beginning 8) ; 7 + 1
+ (buffer-substring (match-beginning 8) ; 7 + 1
+ (match-end 8)) ; 7 + 1
+ ""))
+ (setq argument nil)
(if cperl-pod-here-fontify
- (progn (put-text-property (point) e 'face face)
- (goto-char bb)
- (while (re-search-forward
- ;; One paragraph
- "^=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
- e 'toend)
- (put-text-property
- (match-beginning 1) (match-end 1)
- 'face head-face))))
- (goto-char e)))
- (goto-char min)
- (while (re-search-forward
- "<<\\(\\([\"'`]\\)?\\)\\([a-zA-Z_][a-zA-Z_0-9]*\\)\\1"
- max t)
- (setq tag (buffer-substring (match-beginning 3)
- (match-end 3)))
- (if cperl-pod-here-fontify
- (put-text-property (match-beginning 3) (match-end 3)
- 'face font-lock-reference-face))
- (forward-line)
- (setq b (point))
- (and (re-search-forward (concat "^" tag "$") max 'toend)
- (progn
- (if cperl-pod-here-fontify
- (progn
- (put-text-property (match-beginning 0) (match-end 0)
- 'face font-lock-reference-face)
- (put-text-property (match-beginning 0)
- (1+ (match-end 0))
- 'lazy-lock t)
- (put-text-property (match-beginning 0)
- (1+ (match-end 0))
- 'fontified t)
- (put-text-property b (match-beginning 0)
- 'face here-face)
- (put-text-property b (match-beginning 0)
- 'lazy-lock t)))
- (put-text-property b (match-beginning 0)
- 'syntax-type 'here-doc)))))
- (if err (goto-char err)
- (message "Scan for pods and here-docs completed.")))
+ (while (and (eq (forward-line) 0)
+ (not (looking-at "^[.;]$")))
+ (cond
+ ((looking-at "^#")) ; Skip comments
+ ((and argument ; Skip argument multi-lines
+ (looking-at "^[ \t]*{"))
+ (forward-sexp 1)
+ (setq argument nil))
+ (argument ; Skip argument lines
+ (setq argument nil))
+ (t ; Format line
+ (setq b1 (point))
+ (setq argument (looking-at "^[^\n]*[@^]"))
+ (end-of-line)
+ (put-text-property b1 (point)
+ 'face font-lock-string-face)
+ (cperl-commentify b1 (point) nil)
+ (cperl-put-do-not-fontify b1 (point)))))
+ (re-search-forward (concat "^[.;]$") max 'toend))
+ (beginning-of-line)
+ (if (looking-at "^[.;]$")
+ (progn
+ (put-text-property (point) (+ (point) 2)
+ 'face font-lock-string-face)
+ (cperl-commentify (point) (+ (point) 2) nil)
+ (cperl-put-do-not-fontify (point) (+ (point) 2)))
+ (message "End of format `%s' not found." name)
+ (or (car err-l) (setcar err-l b)))
+ (forward-line)
+ (put-text-property b (point) 'syntax-type 'format)
+;;; (cond ((re-search-forward (concat "^[.;]$") max 'toend)
+;;; (if cperl-pod-here-fontify
+;;; (progn
+;;; (put-text-property b (match-end 0)
+;;; 'face font-lock-string-face)
+;;; (cperl-put-do-not-fontify b (match-end 0))))
+;;; (put-text-property b (match-end 0)
+;;; 'syntax-type 'format)
+;;; (cperl-put-do-not-fontify b (match-beginning 0)))
+;;; (t (message "End of format `%s' not found." name)))
+ )
+ ;; Regexp:
+ ((or (match-beginning 10) (match-beginning 11))
+ ;; 1+6+2=9 extra () before this:
+ ;; "\\<\\(q[wxq]?\\|[msy]\\|tr\\)\\>"
+ ;; "\\|"
+ ;; "\\([?/]\\)" ; /blah/ or ?blah?
+ (setq b1 (if (match-beginning 10) 10 11)
+ argument (buffer-substring
+ (match-beginning b1) (match-end b1))
+ b (point)
+ i b
+ c (char-after (match-beginning b1))
+ bb (char-after (1- (match-beginning b1))) ; tmp holder
+ bb (and ; user variables/whatever
+ (match-beginning 10)
+ (or
+ (memq bb '(?\$ ?\@ ?\% ?\* ?\#)) ; $#y
+ (and (eq bb ?-) (eq c ?s)) ; -s file test
+ (and (eq bb ?\&) ; &&m/blah/
+ (not (eq (char-after
+ (- (match-beginning b1) 2))
+ ?\&))))))
+ (or bb
+ (if (eq b1 11) ; bare /blah/ or ?blah?
+ (setq argument ""
+ bb ; Not a regexp?
+ (progn
+ (goto-char (match-beginning b1))
+ (cperl-backward-to-noncomment (point-min))
+ (not
+ ;; What is below: regexp-p?
+ (and
+ (or (memq (preceding-char)
+ (append (if (eq c ?\?)
+ ;; $a++ ? 1 : 2
+ "~{(=|&*!,;"
+ "~{(=|&+-*!,;") nil))
+ (and (eq (preceding-char) ?\})
+ (cperl-after-block-p (point-min)))
+ (and (eq (char-syntax (preceding-char)) ?w)
+ (progn
+ (forward-sexp -1)
+ (looking-at
+ "\\(while\\|if\\|unless\\|until\\|and\\|or\\|not\\|xor\\|split\\|grep\\|map\\|print\\)\\>")))
+ (and (eq (preceding-char) ?.)
+ (eq (char-after (- (point) 2)) ?.))
+ (bobp))
+ ;; m|blah| ? foo : bar;
+ (not
+ (and (eq c ?\?)
+ cperl-use-syntax-table-text-property
+ (not (bobp))
+ (progn
+ (forward-char -1)
+ (looking-at "\\s|")))))))
+ b (1- b))))
+ (or bb (setq state (parse-partial-sexp
+ state-point b nil nil state)
+ state-point b))
+ (goto-char b)
+ (if (or bb (nth 3 state) (nth 4 state))
+ (goto-char i)
+ (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
+ (goto-char (match-end 0))
+ (skip-chars-forward " \t\n\f"))
+ ;; qtag means two-arg matcher, may be reset to
+ ;; 2 or 3 later if some special quoting is needed.
+ ;; e1 means matching-char matcher.
+ (setq b (point)
+ i (cperl-forward-re max end
+ (string-match "^\\([sy]\\|tr\\)$" argument)
+ t st-l err-l argument)
+ i2 (nth 1 i) ; start of the second part
+ e1 (nth 2 i) ; ender, true if matching second part
+ go (nth 4 i) ; There is a 1-char part after the end
+ i (car i) ; intermediate point
+ tail (if (and i (not e1)) (1- (point)))
+ e nil) ; need to preserve backslashitis
+ ;; Commenting \\ is dangerous, what about ( ?
+ (and i tail
+ (eq (char-after i) ?\\)
+ (setq e t))
+ (if (null i)
+ (progn
+ (cperl-commentify b (point) t)
+ (if go (forward-char 1)))
+ (cperl-commentify b i t)
+ (if (looking-at "\\sw*e") ; s///e
+ (progn
+ (and
+ ;; silent:
+ (cperl-find-pods-heres i2 (1- (point)) t end)
+ ;; Error
+ (goto-char (1+ max)))
+ (if (and e1 (eq (preceding-char) ?\>))
+ (progn
+ (cperl-modify-syntax-type (1- (point)) cperl-st-ket)
+ (cperl-modify-syntax-type i cperl-st-bra))))
+ (cperl-commentify i2 (point) t)
+ (if e
+ (cperl-modify-syntax-type (1+ i) cperl-st-punct))
+ (setq tail nil)))
+ (if (eq (char-syntax (following-char)) ?w)
+ (progn
+ (forward-word 1) ; skip modifiers s///s
+ (if tail (cperl-commentify tail (point) t))))))
+ ((match-beginning 13) ; sub with prototypes
+ (setq b (match-beginning 0))
+ (if (memq (char-after (1- b))
+ '(?\$ ?\@ ?\% ?\& ?\*))
+ nil
+ (setq state (parse-partial-sexp
+ state-point (1- b) nil nil state)
+ state-point (1- b))
+ (if (or (nth 3 state) (nth 4 state))
+ nil
+ ;; Mark as string
+ (cperl-commentify (match-beginning 13) (match-end 13) t))
+ (goto-char (match-end 0))))
+ ;; 1+6+2+1+1+2=13 extra () before this:
+ ;; "\\$\\(['{]\\)"
+ ((and (match-beginning 14)
+ (eq (preceding-char) ?\')) ; $'
+ (setq b (1- (point))
+ state (parse-partial-sexp
+ state-point (1- b) nil nil state)
+ state-point (1- b))
+ (if (nth 3 state) ; in string
+ (cperl-modify-syntax-type (1- b) cperl-st-punct))
+ (goto-char (1+ b)))
+ ;; 1+6+2+1+1+2=13 extra () before this:
+ ;; "\\$\\(['{]\\)"
+ ((match-beginning 14) ; ${
+ (setq bb (match-beginning 0))
+ (cperl-modify-syntax-type bb cperl-st-punct))
+ ;; 1+6+2+1+1+2+1=14 extra () before this:
+ ;; "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'")
+ ((match-beginning 15) ; old $abc'efg syntax
+ (setq bb (match-end 0)
+ b (match-beginning 0)
+ state (parse-partial-sexp
+ state-point b nil nil state)
+ state-point b)
+ (if (nth 3 state) ; in string
+ nil
+ (put-text-property (1- bb) bb 'syntax-table cperl-st-word))
+ (goto-char bb))
+ ;; 1+6+2+1+1+2+1+1=15 extra () before this:
+ ;; "__\\(END\\|DATA\\)__"
+ (t ; __END__, __DATA__
+ (setq bb (match-end 0)
+ b (match-beginning 0)
+ state (parse-partial-sexp
+ state-point b nil nil state)
+ state-point b)
+ (if (or (nth 3 state) (nth 4 state))
+ nil
+ ;; (put-text-property b (1+ bb) 'syntax-type 'pod) ; Cheat
+ (cperl-commentify b bb nil)
+ (setq end t))
+ (goto-char bb)))
+ (if (> (point) max)
+ (progn
+ (if end
+ (message "Garbage after __END__/__DATA__ ignored")
+ (message "Unbalanced syntax found while scanning")
+ (or (car err-l) (setcar err-l b)))
+ (goto-char max))))
+;;; (while (re-search-forward "\\(\\`\n?\\|\n\n\\)=" max t)
+;;; (if (looking-at "\n*cut\\>")
+;;; (progn
+;;; (message "=cut is not preceded by a pod section")
+;;; (setq err (point)))
+;;; (beginning-of-line)
+
+;;; (setq b (point) bb b)
+;;; (or (re-search-forward "\n\n=cut\\>" max 'toend)
+;;; (message "Cannot find the end of a pod section"))
+;;; (beginning-of-line 3)
+;;; (setq e (point))
+;;; (put-text-property b e 'in-pod t)
+;;; (goto-char b)
+;;; (while (re-search-forward "\n\n[ \t]" e t)
+;;; (beginning-of-line)
+;;; (put-text-property b (point) 'syntax-type 'pod)
+;;; (cperl-put-do-not-fontify b (point))
+;;; ;;(put-text-property (max (point-min) (1- b))
+;;; ;; (point) cperl-do-not-fontify t)
+;;; (if cperl-pod-here-fontify (put-text-property b (point) 'face face))
+;;; (re-search-forward "\n\n[^ \t\f\n]" e 'toend)
+;;; (beginning-of-line)
+;;; (setq b (point)))
+;;; (put-text-property (point) e 'syntax-type 'pod)
+;;; (cperl-put-do-not-fontify (point) e)
+;;; ;;(put-text-property (max (point-min) (1- (point)))
+;;; ;; e cperl-do-not-fontify t)
+;;; (if cperl-pod-here-fontify
+;;; (progn (put-text-property (point) e 'face face)
+;;; (goto-char bb)
+;;; (if (looking-at
+;;; "=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
+;;; (put-text-property
+;;; (match-beginning 1) (match-end 1)
+;;; 'face head-face))
+;;; (while (re-search-forward
+;;; ;; One paragraph
+;;; "\n\n=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
+;;; e 'toend)
+;;; (put-text-property
+;;; (match-beginning 1) (match-end 1)
+;;; 'face head-face))))
+;;; (goto-char e)))
+;;; (goto-char min)
+;;; (while (re-search-forward
+;;; ;; We exclude \n to avoid misrecognition inside quotes.
+;;; "<<\\(\\([\"'`]\\)\\([^\"'`\n]*\\)\\2\\|\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)\\)"
+;;; max t)
+;;; (if (match-beginning 4)
+;;; (setq b1 (match-beginning 4)
+;;; e1 (match-end 4))
+;;; (setq b1 (match-beginning 3)
+;;; e1 (match-end 3)))
+;;; (setq tag (buffer-substring b1 e1)
+;;; qtag (regexp-quote tag))
+;;; (cond (cperl-pod-here-fontify
+;;; (put-text-property b1 e1 'face font-lock-reference-face)
+;;; (cperl-put-do-not-fontify b1 e1)))
+;;; (forward-line)
+;;; (setq b (point))
+;;; (cond ((re-search-forward (concat "^" qtag "$") max 'toend)
+;;; (if cperl-pod-here-fontify
+;;; (progn
+;;; (put-text-property (match-beginning 0) (match-end 0)
+;;; 'face font-lock-reference-face)
+;;; (cperl-put-do-not-fontify b (match-end 0))
+;;; ;;(put-text-property (max (point-min) (1- b))
+;;; ;; (min (point-max)
+;;; ;; (1+ (match-end 0)))
+;;; ;; cperl-do-not-fontify t)
+;;; (put-text-property b (match-beginning 0)
+;;; 'face here-face)))
+;;; (put-text-property b (match-beginning 0)
+;;; 'syntax-type 'here-doc)
+;;; (cperl-put-do-not-fontify b (match-beginning 0)))
+;;; (t (message "End of here-document `%s' not found." tag))))
+;;; (goto-char min)
+;;; (while (re-search-forward
+;;; "^[ \t]*format[ \t]*\\(\\([a-zA-Z0-9_]+[ \t]*\\)?\\)=[ \t]*$"
+;;; max t)
+;;; (setq b (point)
+;;; name (buffer-substring (match-beginning 1)
+;;; (match-end 1)))
+;;; (cond ((re-search-forward (concat "^[.;]$") max 'toend)
+;;; (if cperl-pod-here-fontify
+;;; (progn
+;;; (put-text-property b (match-end 0)
+;;; 'face font-lock-string-face)
+;;; (cperl-put-do-not-fontify b (match-end 0))))
+;;; (put-text-property b (match-end 0)
+;;; 'syntax-type 'format)
+;;; (cperl-put-do-not-fontify b (match-beginning 0)))
+;;; (t (message "End of format `%s' not found." name))))
+ )
+ (if (car err-l) (goto-char (car err-l))
+ (or noninteractive
+ (message "Scan for \"hard\" Perl constructions completed."))))
(and (buffer-modified-p)
(not modified)
- (set-buffer-modified-p nil)))))
+ (set-buffer-modified-p nil))
+ (set-syntax-table cperl-mode-syntax-table))
+ (car err-l)))
(defun cperl-backward-to-noncomment (lim)
;; Stops at lim or after non-whitespace that is not in comment
(skip-chars-backward " \t\n\f" lim)
(setq p (point))
(beginning-of-line)
- (if (looking-at "^[ \t]*\\(#\\|$\\)") nil ; Only comment, skip
+ (if (or (looking-at "^[ \t]*\\(#\\|$\\)")
+ (progn (cperl-to-comment-or-eol) (bolp)))
+ nil ; Only comment, skip
;; Else
- (cperl-to-comment-or-eol)
(skip-chars-backward " \t")
(if (< p (point)) (goto-char p))
(setq stop t)))))
+(defun cperl-after-block-p (lim)
+ ;; We suppose that the preceding char is }.
+ (save-excursion
+ (condition-case nil
+ (progn
+ (forward-sexp -1)
+ (cperl-backward-to-noncomment lim)
+ (or (eq (preceding-char) ?\) ) ; if () {}
+ (and (eq (char-syntax (preceding-char)) ?w) ; else {}
+ (progn
+ (forward-sexp -1)
+ (looking-at "\\(else\\|grep\\|map\\)\\>")))
+ (cperl-after-expr-p lim)))
+ (error nil))))
+
(defun cperl-after-expr-p (&optional lim chars test)
"Returns true if the position is good for start of expression.
TEST is the expression to evaluate at the found position. If absent,
-CHARS is a string that contains good characters to have before us."
- (let (stop p)
+CHARS is a string that contains good characters to have before us (however,
+`}' is treated \"smartly\" if it is not in the list)."
+ (let (stop p
+ (lim (or lim (point-min))))
(save-excursion
- (while (and (not stop) (> (point) (or lim 1)))
+ (while (and (not stop) (> (point) lim))
(skip-chars-backward " \t\n\f" lim)
(setq p (point))
(beginning-of-line)
(setq stop t)))
(or (bobp)
(progn
- (backward-char 1)
(if test (eval test)
- (memq (following-char) (append (or chars "{};") nil))))))))
+ (or (memq (preceding-char) (append (or chars "{;") nil))
+ (and (eq (preceding-char) ?\})
+ (cperl-after-block-p lim)))))))))
(defun cperl-backward-to-start-of-continued-exp (lim)
(if (memq (preceding-char) (append ")]}\"'`" nil))
(save-excursion
(let ((tmp-end (progn (end-of-line) (point))) top done)
(save-excursion
+ (beginning-of-line)
(while (null done)
- (beginning-of-line)
(setq top (point))
(while (= (nth 0 (parse-partial-sexp (point) tmp-end
-1)) -1)
comment-column))
(setq old-comm-indent nil)))
(if (and old-comm-indent
- (= (current-indentation) old-comm-indent))
+ (= (current-indentation) old-comm-indent)
+ (not (eq (get-text-property (point) 'syntax-type) 'pod)))
(let ((comment-column new-comm-indent))
(indent-for-comment)))
(progn
(cperl-indent-line 'indent-info)
(or comm
(progn
- (if (setq old-comm-indent (and (cperl-to-comment-or-eol)
- (current-column)))
+ (if (setq old-comm-indent
+ (and (cperl-to-comment-or-eol)
+ (not (memq (get-text-property (point)
+ 'syntax-type)
+ '(pod here-doc)))
+ (current-column)))
(progn (indent-for-comment)
(skip-chars-backward " \t")
(skip-chars-backward "#")
(imenu-progress-message pm 100)
(message nil)))))
-(defun cperl-slash-is-regexp (&optional pos)
- (save-excursion
- (goto-char (if pos pos (1- (point))))
- (and
- (not (memq (get-text-property (point) 'face)
- '(font-lock-string-face font-lock-comment-face)))
- (cperl-after-expr-p nil nil '
- (or (looking-at "[^]a-zA-Z0-9_)}]")
- (eq (get-text-property (point) 'face)
- 'font-lock-keyword-face))))))
+;;(defun cperl-slash-is-regexp (&optional pos)
+;; (save-excursion
+;; (goto-char (if pos pos (1- (point))))
+;; (and
+;; (not (memq (get-text-property (point) 'face)
+;; '(font-lock-string-face font-lock-comment-face)))
+;; (cperl-after-expr-p nil nil '
+;; (or (looking-at "[^]a-zA-Z0-9_)}]")
+;; (eq (get-text-property (point) 'face)
+;; 'font-lock-keyword-face))))))
;; Stolen from lisp-mode with a lot of improvements
(or (memq (preceding-char) '(?\ ?\t)) (insert " "))))))
(defvar imenu-example--function-name-regexp-perl
- "^\\([ \t]*\\(sub\\|package\\)[ \t\n]+\\([a-zA-Z_0-9:']+\\)[ \t]*\\|=head\\([12]\\)[ \t]+\\([^\n]+\\)$\\)")
+ (concat
+ "^\\("
+ "[ \t]*\\(sub\\|package\\)[ \t\n]+\\([a-zA-Z_0-9:']+\\)[ \t]*\\(([^()]*)[ \t]*\\)?"
+ "\\|"
+ "=head\\([12]\\)[ \t]+\\([^\n]+\\)$"
+ "\\)"))
+
+(defun cperl-imenu-addback (lst &optional isback name)
+ ;; We suppose that the lst is a DAG, unless the first element only
+ ;; loops back, and ISBACK is set. Thus this function cannot be
+ ;; applied twice without ISBACK set.
+ (cond ((not cperl-imenu-addback) lst)
+ (t
+ (or name
+ (setq name "+++BACK+++"))
+ (mapcar (function (lambda (elt)
+ (if (and (listp elt) (listp (cdr elt)))
+ (progn
+ ;; In the other order it goes up
+ ;; one level only ;-(
+ (setcdr elt (cons (cons name lst)
+ (cdr elt)))
+ (cperl-imenu-addback (cdr elt) t name)
+ ))))
+ (if isback (cdr lst) lst))
+ lst)))
(defun imenu-example--create-perl-index (&optional regexp)
(require 'cl)
+ (require 'imenu) ; May be called from TAGS creator
(let ((index-alist '()) (index-pack-alist '()) (index-pod-alist '())
(index-unsorted-alist '()) (i-s-f (default-value 'imenu-sort-function))
+ (index-meth-alist '()) meth
packages ends-ranges p
(prev-pos 0) char fchar index index1 name (end-range 0) package)
(goto-char (point-min))
- (imenu-progress-message prev-pos 0)
+ (if noninteractive
+ (message "Scanning Perl for index")
+ (imenu-progress-message prev-pos 0))
;; Search for the function
- (save-match-data
+ (progn ;;save-match-data
(while (re-search-forward
(or regexp imenu-example--function-name-regexp-perl)
nil t)
- (imenu-progress-message prev-pos)
+ (or noninteractive
+ (imenu-progress-message prev-pos))
;;(backward-up-list 1)
(cond
- ((match-beginning 2) ; package or sub
+ ((and ; Skip some noise if building tags
+ (match-beginning 2) ; package or sub
+ (eq (char-after (match-beginning 2)) ?p) ; package
+ (not (save-match-data
+ (looking-at "[ \t\n]*;")))) ; Plain text word 'package'
+ nil)
+ ((and
+ (match-beginning 2) ; package or sub
+ ;; Skip if quoted (will not skip multi-line ''-comments :-():
+ (null (get-text-property (match-beginning 1) 'syntax-table))
+ (null (get-text-property (match-beginning 1) 'syntax-type))
+ (null (get-text-property (match-beginning 1) 'in-pod)))
(save-excursion
(goto-char (match-beginning 2))
(setq fchar (following-char))
)
- (setq char (following-char))
- (setq p (point))
+ ;; (if (looking-at "([^()]*)[ \t\n\f]*")
+ ;; (goto-char (match-end 0))) ; Messes what follows
+ (setq char (following-char)
+ meth nil
+ p (point))
(while (and ends-ranges (>= p (car ends-ranges)))
;; delete obsolete entries
(setq ends-ranges (cdr ends-ranges) packages (cdr packages)))
(setq package (or (car packages) "")
end-range (or (car ends-ranges) 0))
(if (eq fchar ?p)
- (progn
- (setq name (buffer-substring (match-beginning 3) (match-end 3))
- package (concat name "::")
- name (concat "package " name)
- end-range
- (save-excursion
- (parse-partial-sexp (point) (point-max) -1) (point))
- ends-ranges (cons end-range ends-ranges)
- packages (cons package packages))))
+ (setq name (buffer-substring (match-beginning 3) (match-end 3))
+ name (progn
+ (set-text-properties 0 (length name) nil name)
+ name)
+ package (concat name "::")
+ name (concat "package " name)
+ end-range
+ (save-excursion
+ (parse-partial-sexp (point) (point-max) -1) (point))
+ ends-ranges (cons end-range ends-ranges)
+ packages (cons package packages)))
;; )
;; Skip this function name if it is a prototype declaration.
(if (and (eq fchar ?s) (eq char ?\;)) nil
+ (setq index (imenu-example--name-and-position))
(if (eq fchar ?p) nil
(setq name (buffer-substring (match-beginning 3) (match-end 3)))
- (if (or (> p end-range) (string-match "[:']" name)) nil
- (setq name (concat package name))))
- (setq index (imenu-example--name-and-position))
+ (set-text-properties 0 (length name) nil name)
+ (cond ((string-match "[:']" name)
+ (setq meth t))
+ ((> p end-range) nil)
+ (t
+ (setq name (concat package name) meth t))))
(setcar index name)
(if (eq fchar ?p)
(push index index-pack-alist)
(push index index-alist))
+ (if meth (push index index-meth-alist))
(push index index-unsorted-alist)))
- (t ; Pod section
+ ((match-beginning 5) ; Pod section
;; (beginning-of-line)
(setq index (imenu-example--name-and-position)
- name (buffer-substring (match-beginning 5) (match-end 5)))
- (if (eq (char-after (match-beginning 4)) ?2)
+ name (buffer-substring (match-beginning 6) (match-end 6)))
+ (set-text-properties 0 (length name) nil name)
+ (if (eq (char-after (match-beginning 5)) ?2)
(setq name (concat " " name)))
(setcar index name)
(setq index1 (cons (concat "=" name) (cdr index)))
(push index index-pod-alist)
(push index1 index-unsorted-alist)))))
- (imenu-progress-message prev-pos 100)
+ (or noninteractive
+ (imenu-progress-message prev-pos 100))
(setq index-alist
(if (default-value 'imenu-sort-function)
(sort index-alist (default-value 'imenu-sort-function))
(nreverse index-alist)))
(and index-pod-alist
- (push (cons (imenu-create-submenu-name "+POD headers+")
+ (push (cons "+POD headers+..."
(nreverse index-pod-alist))
index-alist))
+ (and (or index-pack-alist index-meth-alist)
+ (let ((lst index-pack-alist) hier-list pack elt group name)
+ ;; Remove "package ", reverse and uniquify.
+ (while lst
+ (setq elt (car lst) lst (cdr lst) name (substring (car elt) 8))
+ (if (assoc name hier-list) nil
+ (setq hier-list (cons (cons name (cdr elt)) hier-list))))
+ (setq lst index-meth-alist)
+ (while lst
+ (setq elt (car lst) lst (cdr lst))
+ (cond ((string-match "\\(::\\|'\\)[_a-zA-Z0-9]+$" (car elt))
+ (setq pack (substring (car elt) 0 (match-beginning 0)))
+ (if (setq group (assoc pack hier-list))
+ (if (listp (cdr group))
+ ;; Have some functions already
+ (setcdr group
+ (cons (cons (substring
+ (car elt)
+ (+ 2 (match-beginning 0)))
+ (cdr elt))
+ (cdr group)))
+ (setcdr group (list (cons (substring
+ (car elt)
+ (+ 2 (match-beginning 0)))
+ (cdr elt)))))
+ (setq hier-list
+ (cons (cons pack
+ (list (cons (substring
+ (car elt)
+ (+ 2 (match-beginning 0)))
+ (cdr elt))))
+ hier-list))))))
+ (push (cons "+Hierarchy+..."
+ hier-list)
+ index-alist)))
(and index-pack-alist
- (push (cons (imenu-create-submenu-name "+Packages+")
+ (push (cons "+Packages+..."
(nreverse index-pack-alist))
index-alist))
(and (or index-pack-alist index-pod-alist
(default-value 'imenu-sort-function))
index-unsorted-alist
- (push (cons (imenu-create-submenu-name "+Unsorted List+")
+ (push (cons "+Unsorted List+..."
(nreverse index-unsorted-alist))
index-alist))
- index-alist))
+ (cperl-imenu-addback index-alist)))
(defvar cperl-compilation-error-regexp-alist
;; This look like a paranoiac regexp: could anybody find a better one? (which WORK).
"\\|") ; Flow control
"\\)\\>") 2) ; was "\\)[ \n\t;():,\|&]"
; In what follows we use `type' style
- ; for overwritable buildins
+ ; for overwritable builtins
(list
(concat
"\\(^\\|[^$@%&\\]\\)\\<\\("
- ;; "CORE" "__FILE__" "__LINE__" "abs" "accept" "alarm" "and" "atan2"
- ;; "bind" "binmode" "bless" "caller" "chdir" "chmod" "chown" "chr"
- ;; "chroot" "close" "closedir" "cmp" "connect" "continue" "cos"
- ;; "crypt" "dbmclose" "dbmopen" "die" "dump" "endgrent" "endhostent"
- ;; "endnetent" "endprotoent" "endpwent" "endservent" "eof" "eq" "exec"
- ;; "exit" "exp" "fcntl" "fileno" "flock" "fork" "formline" "ge" "getc"
- ;; "getgrent" "getgrgid" "getgrnam" "gethostbyaddr" "gethostbyname"
- ;; "gethostent" "getlogin" "getnetbyaddr" "getnetbyname" "getnetent"
- ;; "getpeername" "getpgrp" "getppid" "getpriority" "getprotobyname"
- ;; "getprotobynumber" "getprotoent" "getpwent" "getpwnam" "getpwuid"
- ;; "getservbyname" "getservbyport" "getservent" "getsockname"
- ;; "getsockopt" "glob" "gmtime" "gt" "hex" "index" "int" "ioctl"
- ;; "join" "kill" "lc" "lcfirst" "le" "length" "link" "listen"
- ;; "localtime" "log" "lstat" "lt" "mkdir" "msgctl" "msgget" "msgrcv"
- ;; "msgsnd" "ne" "not" "oct" "open" "opendir" "or" "ord" "pack" "pipe"
- ;; "quotemeta" "rand" "read" "readdir" "readline" "readlink"
- ;; "readpipe" "recv" "ref" "rename" "require" "reset" "reverse"
- ;; "rewinddir" "rindex" "rmdir" "seek" "seekdir" "select" "semctl"
- ;; "semget" "semop" "send" "setgrent" "sethostent" "setnetent"
- ;; "setpgrp" "setpriority" "setprotoent" "setpwent" "setservent"
- ;; "setsockopt" "shmctl" "shmget" "shmread" "shmwrite" "shutdown"
- ;; "sin" "sleep" "socket" "socketpair" "sprintf" "sqrt" "srand" "stat"
- ;; "substr" "symlink" "syscall" "sysread" "system" "syswrite" "tell"
- ;; "telldir" "time" "times" "truncate" "uc" "ucfirst" "umask" "unlink"
- ;; "unpack" "utime" "values" "vec" "wait" "waitpid" "wantarray" "warn"
- ;; "write" "x" "xor"
+ ;; "CORE" "__FILE__" "__LINE__" "abs" "accept" "alarm"
+ ;; "and" "atan2" "bind" "binmode" "bless" "caller"
+ ;; "chdir" "chmod" "chown" "chr" "chroot" "close"
+ ;; "closedir" "cmp" "connect" "continue" "cos" "crypt"
+ ;; "dbmclose" "dbmopen" "die" "dump" "endgrent"
+ ;; "endhostent" "endnetent" "endprotoent" "endpwent"
+ ;; "endservent" "eof" "eq" "exec" "exit" "exp" "fcntl"
+ ;; "fileno" "flock" "fork" "formline" "ge" "getc"
+ ;; "getgrent" "getgrgid" "getgrnam" "gethostbyaddr"
+ ;; "gethostbyname" "gethostent" "getlogin"
+ ;; "getnetbyaddr" "getnetbyname" "getnetent"
+ ;; "getpeername" "getpgrp" "getppid" "getpriority"
+ ;; "getprotobyname" "getprotobynumber" "getprotoent"
+ ;; "getpwent" "getpwnam" "getpwuid" "getservbyname"
+ ;; "getservbyport" "getservent" "getsockname"
+ ;; "getsockopt" "glob" "gmtime" "gt" "hex" "index" "int"
+ ;; "ioctl" "join" "kill" "lc" "lcfirst" "le" "length"
+ ;; "link" "listen" "localtime" "log" "lstat" "lt"
+ ;; "mkdir" "msgctl" "msgget" "msgrcv" "msgsnd" "ne"
+ ;; "not" "oct" "open" "opendir" "or" "ord" "pack" "pipe"
+ ;; "quotemeta" "rand" "read" "readdir" "readline"
+ ;; "readlink" "readpipe" "recv" "ref" "rename" "require"
+ ;; "reset" "reverse" "rewinddir" "rindex" "rmdir" "seek"
+ ;; "seekdir" "select" "semctl" "semget" "semop" "send"
+ ;; "setgrent" "sethostent" "setnetent" "setpgrp"
+ ;; "setpriority" "setprotoent" "setpwent" "setservent"
+ ;; "setsockopt" "shmctl" "shmget" "shmread" "shmwrite"
+ ;; "shutdown" "sin" "sleep" "socket" "socketpair"
+ ;; "sprintf" "sqrt" "srand" "stat" "substr" "symlink"
+ ;; "syscall" "sysread" "system" "syswrite" "tell"
+ ;; "telldir" "time" "times" "truncate" "uc" "ucfirst"
+ ;; "umask" "unlink" "unpack" "utime" "values" "vec"
+ ;; "wait" "waitpid" "wantarray" "warn" "write" "x" "xor"
"a\\(bs\\|ccept\\|tan2\\|larm\\|nd\\)\\|"
"b\\(in\\(d\\|mode\\)\\|less\\)\\|"
"c\\(h\\(r\\(\\|oot\\)\\|dir\\|mod\\|own\\)\\|aller\\|rypt\\|"
"ell\\(\\|dir\\)\\|ime\\(\\|s\\)\\)\\|u\\(c\\(\\|first\\)\\|"
"time\\|mask\\|n\\(pack\\|link\\)\\)\\|v\\(alues\\|ec\\)\\|"
"w\\(a\\(rn\\|it\\(pid\\|\\)\\|ntarray\\)\\|rite\\)\\|"
- "x\\(\\|or\\)\\|__\\(FILE__\\|LINE__\\)"
+ "x\\(\\|or\\)\\|__\\(FILE__\\|LINE__\\|PACKAGE__\\)"
"\\)\\>") 2 'font-lock-type-face)
;; In what follows we use `other' style
- ;; for nonoverwritable buildins
- ;; Somehow 's', 'm' are not autogenerated???
+ ;; for nonoverwritable builtins
+ ;; Somehow 's', 'm' are not auto-generated???
(list
(concat
"\\(^\\|[^$@%&\\]\\)\\<\\("
- ;; "AUTOLOAD" "BEGIN" "DESTROY" "END" "__END__" "chomp" "chop"
- ;; "defined" "delete" "do" "each" "else" "elsif" "eval" "exists" "for"
- ;; "foreach" "format" "goto" "grep" "if" "keys" "last" "local" "map"
- ;; "my" "next" "no" "package" "pop" "pos" "print" "printf" "push" "q"
- ;; "qq" "qw" "qx" "redo" "return" "scalar" "shift" "sort" "splice"
- ;; "split" "study" "sub" "tie" "tr" "undef" "unless" "unshift" "untie"
- ;; "until" "use" "while" "y"
+ ;; "AUTOLOAD" "BEGIN" "DESTROY" "END" "__END__" "chomp"
+ ;; "chop" "defined" "delete" "do" "each" "else" "elsif"
+ ;; "eval" "exists" "for" "foreach" "format" "goto"
+ ;; "grep" "if" "keys" "last" "local" "map" "my" "next"
+ ;; "no" "package" "pop" "pos" "print" "printf" "push"
+ ;; "q" "qq" "qw" "qx" "redo" "return" "scalar" "shift"
+ ;; "sort" "splice" "split" "study" "sub" "tie" "tr"
+ ;; "undef" "unless" "unshift" "untie" "until" "use"
+ ;; "while" "y"
"AUTOLOAD\\|BEGIN\\|cho\\(p\\|mp\\)\\|d\\(e\\(fined\\|lete\\)\\|"
"o\\)\\|DESTROY\\|e\\(ach\\|val\\|xists\\|ls\\(e\\|if\\)\\)\\|"
"END\\|for\\(\\|each\\|mat\\)\\|g\\(rep\\|oto\\)\\|if\\|keys\\|"
;; "#include" "#define" "#undef")
;; "\\|")
'("-[rwxoRWXOezsfdlpSbctugkTBMAC]\\>\\([ \t]+_\\>\\)?" 0
- font-lock-function-name-face) ; Not very good, triggers at "[a-z]"
- '("\\<sub[ \t]+\\([^ \t{;]+\\)[ \t]*[{\n]" 1
+ font-lock-function-name-face keep) ; Not very good, triggers at "[a-z]"
+ '("\\<sub[ \t]+\\([^ \t{;]+\\)[ \t]*\\(([^()]*)[ \t]*\\)?[#{\n]" 1
font-lock-function-name-face)
'("\\<\\(package\\|require\\|use\\|import\\|no\\|bootstrap\\)[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t;]" ; require A if B;
2 font-lock-function-name-face)
+ '("^[ \t]*format[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t]*=[ \t]*$"
+ 1 font-lock-function-name-face)
(cond ((featurep 'font-lock-extra)
- '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\([a-zA-Z0-9_:]+\\)[ \t]*}"
+ '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
(2 font-lock-string-face t)
(0 '(restart 2 t)))) ; To highlight $a{bc}{ef}
(font-lock-anchored
- '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\([a-zA-Z0-9_:]+\\)[ \t]*}"
+ '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
(2 font-lock-string-face t)
- ("\\=[ \t]*{[ \t]*\\([a-zA-Z0-9_:]+\\)[ \t]*}"
+ ("\\=[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
nil nil
(1 font-lock-string-face t))))
- (t '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\([a-zA-Z0-9_:]+\\)[ \t]*}"
+ (t '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
2 font-lock-string-face t)))
- '("[ \t{,(]\\([a-zA-Z0-9_:]+\\)[ \t]*=>" 1
+ '("[ \t{,(]\\(-?[a-zA-Z0-9_:]+\\)[ \t]*=>" 1
font-lock-string-face t)
'("^[ \t]*\\([a-zA-Z0-9_]+[ \t]*:\\)[ \t]*\\($\\|{\\|\\<\\(until\\|while\\|for\\(each\\)?\\|do\\)\\>\\)" 1
font-lock-reference-face) ; labels
(2 '(restart 2 nil) nil t)))
nil t))) ; local variables, multiple
(font-lock-anchored
- '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
+ '("^[ \t{}]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
(3 font-lock-variable-name-face)
("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)"
nil nil
(1 font-lock-variable-name-face))))
- (t '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
+ (t '("^[ \t{}]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
3 font-lock-variable-name-face)))
'("\\<for\\(each\\)?[ \t]*\\(\\$[a-zA-Z_][a-zA-Z_0-9]*\\)[ \t]*("
2 font-lock-variable-name-face)))
(setq
t-font-lock-keywords-1
(and (fboundp 'turn-on-font-lock) ; Check for newer font-lock
- (not (cperl-xemacs-p)) ; not yet as of XEmacs 19.12
- '(("\\(\\([$@]+\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)[ \t]*\\([[{]\\)"
+ (not cperl-xemacs-p) ; not yet as of XEmacs 19.12
+ '(
+ ("\\(\\([@%]\\|\$#\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)" 1
+ (if (eq (char-after (match-beginning 2)) ?%)
+ font-lock-other-emphasized-face
+ font-lock-emphasized-face)
+ t) ; arrays and hashes
+ ("\\(\\([$@]+\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)[ \t]*\\([[{]\\)"
1
(if (= (- (match-end 2) (match-beginning 2)) 1)
(if (eq (char-after (match-beginning 3)) ?{)
font-lock-emphasized-face) ; arrays and hashes
font-lock-variable-name-face) ; Just to put something
t)
- ("\\(\\([@%]\\|\$#\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)" 1
- (if (eq (char-after (match-beginning 2)) ?%)
- font-lock-other-emphasized-face
- font-lock-emphasized-face)
- t) ; arrays and hashes
;;("\\([smy]\\|tr\\)\\([^a-z_A-Z0-9]\\)\\(\\([^\n\\]*||\\)\\)\\2")
;;; Too much noise from \s* @s[ and friends
;;("\\(\\<\\([msy]\\|tr\\)[ \t]*\\([^ \t\na-zA-Z0-9_]\\)\\|\\(/\\)\\)"
'font-lock-other-type-face
"Face to use for data types from another group.")
)
- (if (not (cperl-xemacs-p)) nil
+ (if (not cperl-xemacs-p) nil
(or (boundp 'font-lock-comment-face)
(defconst font-lock-comment-face
'font-lock-comment-face
(let ((perl-dbg-flags "-wc"))
(mode-compile)))
-(defun cperl-info-buffer ()
- ;; Returns buffer with documentation. Creats if missing
- (let ((info (get-buffer "*info-perl*")))
+(defun cperl-info-buffer (type)
+ ;; Returns buffer with documentation. Creates if missing.
+ ;; If TYPE, this vars buffer.
+ ;; Special care is taken to not stomp over an existing info buffer
+ (let* ((bname (if type "*info-perl-var*" "*info-perl*"))
+ (info (get-buffer bname))
+ (oldbuf (get-buffer "*info*")))
(if info info
(save-window-excursion
;; Get Info running
(require 'info)
+ (cond (oldbuf
+ (set-buffer oldbuf)
+ (rename-buffer "*info-perl-tmp*")))
(save-window-excursion
(info))
- (Info-find-node "perl5" "perlfunc")
+ (Info-find-node cperl-info-page (if type "perlvar" "perlfunc"))
(set-buffer "*info*")
- (rename-buffer "*info-perl*")
+ (rename-buffer bname)
+ (cond (oldbuf
+ (set-buffer "*info-perl-tmp*")
+ (rename-buffer "*info*")
+ (set-buffer bname)))
+ (make-variable-buffer-local 'window-min-height)
+ (setq window-min-height 2)
(current-buffer)))))
(defun cperl-word-at-point (&optional p)
;; Returns the word at point or at P.
(save-excursion
(if p (goto-char p))
- (require 'etags)
- (funcall (or (and (boundp 'find-tag-default-function)
- find-tag-default-function)
- (get major-mode 'find-tag-default-function)
- ;; XEmacs 19.12 has `find-tag-default-hook'; it is
- ;; automatically used within `find-tag-default':
- 'find-tag-default))))
+ (or (cperl-word-at-point-hard)
+ (progn
+ (require 'etags)
+ (funcall (or (and (boundp 'find-tag-default-function)
+ find-tag-default-function)
+ (get major-mode 'find-tag-default-function)
+ ;; XEmacs 19.12 has `find-tag-default-hook'; it is
+ ;; automatically used within `find-tag-default':
+ 'find-tag-default))))))
(defun cperl-info-on-command (command)
- "Shows documentation for Perl command in other window."
+ "Shows documentation for Perl command in other window.
+If perl-info buffer is shown in some frame, uses this frame.
+Customized by setting variables `cperl-shrink-wrap-info-frame',
+`cperl-max-help-size'."
(interactive
(let* ((default (cperl-word-at-point))
(read (read-string
(let ((buffer (current-buffer))
(cmd-desc (concat "^" (regexp-quote command) "[^a-zA-Z_0-9]")) ; "tr///"
- pos)
+ pos isvar height iniheight frheight buf win fr1 fr2 iniwin not-loner
+ max-height char-height buf-list)
(if (string-match "^-[a-zA-Z]$" command)
(setq cmd-desc "^-X[ \t\n]"))
- (set-buffer (cperl-info-buffer))
+ (setq isvar (string-match "^[$@%]" command)
+ buf (cperl-info-buffer isvar)
+ iniwin (selected-window)
+ fr1 (window-frame iniwin))
+ (set-buffer buf)
(beginning-of-buffer)
- (re-search-forward "^-X[ \t\n]")
- (forward-line -1)
+ (or isvar
+ (progn (re-search-forward "^-X[ \t\n]")
+ (forward-line -1)))
(if (re-search-forward cmd-desc nil t)
(progn
- (setq pos (progn (beginning-of-line)
- (point)))
- (pop-to-buffer (cperl-info-buffer))
+ ;; Go back to beginning of the group (ex, for qq)
+ (if (re-search-backward "^[ \t\n\f]")
+ (forward-line 1))
+ (beginning-of-line)
+ ;; Get some of
+ (setq pos (point)
+ buf-list (list buf "*info-perl-var*" "*info-perl*"))
+ (while (and (not win) buf-list)
+ (setq win (get-buffer-window (car buf-list) t))
+ (setq buf-list (cdr buf-list)))
+ (or (not win)
+ (eq (window-buffer win) buf)
+ (set-window-buffer win buf))
+ (and win (setq fr2 (window-frame win)))
+ (if (or (not fr2) (eq fr1 fr2))
+ (pop-to-buffer buf)
+ (special-display-popup-frame buf) ; Make it visible
+ (select-window win))
+ (goto-char pos) ; Needed (?!).
+ ;; Resize
+ (setq iniheight (window-height)
+ frheight (frame-height)
+ not-loner (< iniheight (1- frheight))) ; Are not alone
+ (cond ((if not-loner cperl-max-help-size
+ cperl-shrink-wrap-info-frame)
+ (setq height
+ (+ 2
+ (count-lines
+ pos
+ (save-excursion
+ (if (re-search-forward
+ "^[ \t][^\n]*\n+\\([^ \t\n\f]\\|\\'\\)" nil t)
+ (match-beginning 0) (point-max)))))
+ max-height
+ (if not-loner
+ (/ (* (- frheight 3) cperl-max-help-size) 100)
+ (setq char-height (frame-char-height))
+ ;; Non-functioning under OS/2:
+ (if (eq char-height 1) (setq char-height 18))
+ ;; Title, menubar, + 2 for slack
+ (- (/ (x-display-pixel-height) char-height) 4)
+ ))
+ (if (> height max-height) (setq height max-height))
+ ;;(message "was %s doing %s" iniheight height)
+ (if not-loner
+ (enlarge-window (- height iniheight))
+ (set-frame-height (window-frame win) (1+ height)))))
(set-window-start (selected-window) pos))
(message "No entry for %s found." command))
- (pop-to-buffer buffer)))
+ ;;(pop-to-buffer buffer)
+ (select-window iniwin)))
(defun cperl-info-on-current-command ()
"Shows documentation for Perl command at point in other window."
(defun cperl-imenu-info-imenu-search ()
(if (looking-at "^-X[ \t\n]") nil
(re-search-backward
- "^\n\\([-a-zA-Z]+\\)[ \t\n]")
+ "^\n\\([-a-zA-Z_]+\\)[ \t\n]")
(forward-line 1)))
(defun cperl-imenu-info-imenu-name ()
imenu-extract-index-name-function
(index-item (save-restriction
(save-window-excursion
- (set-buffer (cperl-info-buffer))
+ (set-buffer (cperl-info-buffer nil))
(setq imenu-create-index-function
'imenu-default-create-index-function
imenu-prev-index-position-function
(defun cperl-lineup (beg end &optional step minshift)
"Lineup construction in a region.
Beginning of region should be at the start of a construction.
-All first occurences of this construction in the lines that are
+All first occurrences of this construction in the lines that are
partially contained in the region are lined up at the same column.
MINSHIFT is the minimal amount of space to insert before the construction.
(indent-region beg end nil)
(goto-char beg)
(setq col (current-column))
- (if (looking-at "\\sw")
- (if (looking-at "\\<\\sw+\\>")
+ (if (looking-at "[a-zA-Z0-9_]")
+ (if (looking-at "\\<[a-zA-Z0-9_]+\\>")
(setq search
(concat "\\<"
(regexp-quote
(setq tcol (current-column) seen t)
(if (> tcol col) (setq col tcol)))
(or seen
- (error "The construction to line up occured only once"))
+ (error "The construction to line up occurred only once"))
(goto-char beg)
(setq col (+ col minshift))
(if (/= (% col step) 0) (setq step (* step (1+ (/ col step)))))
in subdirectories too."
(interactive)
(let ((cmd "etags")
- (args '("-l" "none" "-r" "/\\<\\(package\\|sub\\)[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)[ \\t]*\\([{#]\\|$\\)\\)/\\4/"))
+ (args '("-l" "none" "-r" "/\\<\\(package\\|sub\\)[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)[ \\t]*\\(([^()]*)[ \t]*\\)?\\([{#]\\|$\\)\\)/\\4/"))
res)
(if add (setq args (cons "-a" args)))
(or files (setq files (list buffer-file-name)))
((eq all 'recursive)
;;(error "Not implemented: recursive")
(setq args (append (list "-e"
- "sub wanted {push @ARGV, $File::Find::name if /\\.[Pp][Llm]$/}
+ "sub wanted {push @ARGV, $File::Find::name if /\\.[pP][Llm]$/}
use File::Find;
find(\\&wanted, '.');
exec @ARGV;"
(setq res (apply 'call-process cmd nil nil nil args))
(or (eq res 0)
(message "etags returned \"%s\"" res))))
+
+(defun cperl-toggle-auto-newline ()
+ "Toggle the state of `cperl-auto-newline'."
+ (interactive)
+ (setq cperl-auto-newline (not cperl-auto-newline))
+ (message "Newlines will %sbe auto-inserted now."
+ (if cperl-auto-newline "" "not ")))
+
+(defun cperl-toggle-abbrev ()
+ "Toggle the state of automatic keyword expansion in CPerl mode."
+ (interactive)
+ (abbrev-mode (if abbrev-mode 0 1))
+ (message "Perl control structure will %sbe auto-inserted now."
+ (if abbrev-mode "" "not ")))
+
+
+(defun cperl-toggle-electric ()
+ "Toggle the state of parentheses doubling in CPerl mode."
+ (interactive)
+ (setq cperl-electric-parens (if (cperl-val 'cperl-electric-parens) 'null t))
+ (message "Parentheses will %sbe auto-doubled now."
+ (if (cperl-val 'cperl-electric-parens) "" "not ")))
+
+;;;; Tags file creation.
+
+(defvar cperl-tmp-buffer " *cperl-tmp*")
+
+(defun cperl-setup-tmp-buf ()
+ (set-buffer (get-buffer-create cperl-tmp-buffer))
+ (set-syntax-table cperl-mode-syntax-table)
+ (buffer-disable-undo)
+ (auto-fill-mode 0)
+ (if cperl-use-syntax-table-text-property-for-tags
+ (progn
+ (make-variable-buffer-local 'parse-sexp-lookup-properties)
+ ;; Do not introduce variable if not needed, we check it!
+ (set 'parse-sexp-lookup-properties t))))
+
+(defun cperl-xsub-scan ()
+ (require 'cl)
+ (require 'imenu)
+ (let ((index-alist '())
+ (prev-pos 0) index index1 name package prefix)
+ (goto-char (point-min))
+ (if noninteractive
+ (message "Scanning XSUB for index")
+ (imenu-progress-message prev-pos 0))
+ ;; Search for the function
+ (progn ;;save-match-data
+ (while (re-search-forward
+ "^\\([ \t]*MODULE\\>[^\n]*\\<PACKAGE[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9:]*\\)\\>\\|\\([a-zA-Z_][a-zA-Z_0-9]*\\)(\\|[ \t]*BOOT:\\)"
+ nil t)
+ (or noninteractive
+ (imenu-progress-message prev-pos))
+ (cond
+ ((match-beginning 2) ; SECTION
+ (setq package (buffer-substring (match-beginning 2) (match-end 2)))
+ (goto-char (match-beginning 0))
+ (skip-chars-forward " \t")
+ (forward-char 1)
+ (if (looking-at "[^\n]*\\<PREFIX[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9]*\\)\\>")
+ (setq prefix (buffer-substring (match-beginning 1) (match-end 1)))
+ (setq prefix nil)))
+ ((not package) nil) ; C language section
+ ((match-beginning 3) ; XSUB
+ (goto-char (1+ (match-beginning 3)))
+ (setq index (imenu-example--name-and-position))
+ (setq name (buffer-substring (match-beginning 3) (match-end 3)))
+ (if (and prefix (string-match (concat "^" prefix) name))
+ (setq name (substring name (length prefix))))
+ (cond ((string-match "::" name) nil)
+ (t
+ (setq index1 (cons (concat package "::" name) (cdr index)))
+ (push index1 index-alist)))
+ (setcar index name)
+ (push index index-alist))
+ (t ; BOOT: section
+ ;; (beginning-of-line)
+ (setq index (imenu-example--name-and-position))
+ (setcar index (concat package "::BOOT:"))
+ (push index index-alist)))))
+ (or noninteractive
+ (imenu-progress-message prev-pos 100))
+ ;;(setq index-alist
+ ;; (if (default-value 'imenu-sort-function)
+ ;; (sort index-alist (default-value 'imenu-sort-function))
+ ;; (nreverse index-alist)))
+ index-alist))
+
+(defun cperl-find-tags (file xs topdir)
+ (let (ind (b (get-buffer cperl-tmp-buffer)) lst elt pos ret rel
+ (cperl-pod-here-fontify nil))
+ (save-excursion
+ (if b (set-buffer b)
+ (cperl-setup-tmp-buf))
+ (erase-buffer)
+ (setq file (car (insert-file-contents file)))
+ (message "Scanning file %s ..." file)
+ (if (and cperl-use-syntax-table-text-property-for-tags
+ (not xs))
+ (condition-case err ; after __END__ may have garbage
+ (cperl-find-pods-heres)
+ (error (message "While scanning for syntax: %s" err))))
+ (if xs
+ (setq lst (cperl-xsub-scan))
+ (setq ind (imenu-example--create-perl-index))
+ (setq lst (cdr (assoc "+Unsorted List+..." ind))))
+ (setq lst
+ (mapcar
+ (function
+ (lambda (elt)
+ (cond ((string-match "^[_a-zA-Z]" (car elt))
+ (goto-char (cdr elt))
+ (list (car elt)
+ (point) (count-lines 1 (point))
+ (buffer-substring (progn
+ (skip-chars-forward
+ ":_a-zA-Z0-9")
+ (or (eolp) (forward-char 1))
+ (point))
+ (progn
+ (beginning-of-line)
+ (point))))))))
+ lst))
+ (erase-buffer)
+ (while lst
+ (setq elt (car lst) lst (cdr lst))
+ (if elt
+ (progn
+ (insert (elt elt 3)
+ 127
+ (if (string-match "^package " (car elt))
+ (substring (car elt) 8)
+ (car elt) )
+ 1
+ (number-to-string (elt elt 1))
+ ","
+ (number-to-string (elt elt 2))
+ "\n")
+ (if (and (string-match "^[_a-zA-Z]+::" (car elt))
+ (string-match "^sub[ \t]+\\([_a-zA-Z]+\\)[^:_a-zA-Z]"
+ (elt elt 3)))
+ ;; Need to insert the name without package as well
+ (setq lst (cons (cons (substring (elt elt 3)
+ (match-beginning 1)
+ (match-end 1))
+ (cdr elt))
+ lst))))))
+ (setq pos (point))
+ (goto-char 1)
+ (setq rel file)
+ ;; On case-preserving filesystems (EMX on OS/2) case might be encoded in properties
+ (set-text-properties 0 (length rel) nil rel)
+ (and (equal topdir (substring rel 0 (length topdir)))
+ (setq rel (substring file (length topdir))))
+ (insert "\f\n" rel "," (number-to-string (1- pos)) "\n")
+ (setq ret (buffer-substring 1 (point-max)))
+ (erase-buffer)
+ (or noninteractive
+ (message "Scanning file %s finished" file))
+ ret)))
+
+(defun cperl-add-tags-recurse-noxs ()
+ "Add to TAGS data for Perl and XSUB files in the current directory and kids.
+Use as
+ emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
+ -f cperl-add-tags-recurse
+"
+ (cperl-write-tags nil nil t t nil t))
+
+(defun cperl-add-tags-recurse ()
+ "Add to TAGS file data for Perl files in the current directory and kids.
+Use as
+ emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
+ -f cperl-add-tags-recurse
+"
+ (cperl-write-tags nil nil t t))
+
+(defun cperl-write-tags (&optional file erase recurse dir inbuffer noxs topdir)
+ ;; If INBUFFER, do not select buffer, and do not save
+ ;; If ERASE is `ignore', do not erase, and do not try to delete old info.
+ (require 'etags)
+ (if file nil
+ (setq file (if dir default-directory (buffer-file-name)))
+ (if (and (not dir) (buffer-modified-p)) (error "Save buffer first!")))
+ (or topdir
+ (setq topdir default-directory))
+ (let ((tags-file-name "TAGS")
+ (case-fold-search (eq system-type 'emx))
+ xs)
+ (save-excursion
+ (cond (inbuffer nil) ; Already there
+ ((file-exists-p tags-file-name)
+ (visit-tags-table-buffer tags-file-name))
+ (t (set-buffer (find-file-noselect tags-file-name))))
+ (cond
+ (dir
+ (cond ((eq erase 'ignore))
+ (erase
+ (erase-buffer)
+ (setq erase 'ignore)))
+ (let ((files
+ (directory-files file t
+ (if recurse nil cperl-scan-files-regexp)
+ t)))
+ (mapcar (function (lambda (file)
+ (cond
+ ((string-match cperl-noscan-files-regexp file)
+ nil)
+ ((not (file-directory-p file))
+ (if (string-match cperl-scan-files-regexp file)
+ (cperl-write-tags file erase recurse nil t noxs topdir)))
+ ((not recurse) nil)
+ (t (cperl-write-tags file erase recurse t t noxs topdir)))))
+ files))
+ )
+ (t
+ (setq xs (string-match "\\.xs$" file))
+ (if (not (and xs noxs))
+ (progn
+ (cond ((eq erase 'ignore) (goto-char (point-max)))
+ (erase (erase-buffer))
+ (t
+ (goto-char 1)
+ (if (search-forward (concat "\f\n" file ",") nil t)
+ (progn
+ (search-backward "\f\n")
+ (delete-region (point)
+ (save-excursion
+ (forward-char 1)
+ (if (search-forward "\f\n"
+ nil 'toend)
+ (- (point) 2)
+ (point-max)))))
+ (goto-char (point-max)))))
+ (insert (cperl-find-tags file xs topdir))))))
+ (if inbuffer nil ; Delegate to the caller
+ (save-buffer 0) ; No backup
+ (if (fboundp 'initialize-new-tags-table) ; Do we need something special in XEmacs?
+ (initialize-new-tags-table))))))
+
+(defvar cperl-tags-hier-regexp-list
+ (concat
+ "^\\("
+ "\\(package\\)\\>"
+ "\\|"
+ "sub\\>[^\n]+::"
+ "\\|"
+ "[a-zA-Z_][a-zA-Z_0-9:]*(\C-?[^\n]+::" ; XSUB?
+ "\\|"
+ "[ \t]*BOOT:\C-?[^\n]+::" ; BOOT section
+ "\\)"))
+
+(defvar cperl-hierarchy '(() ())
+ "Global hierarchy of classes")
+
+(defun cperl-tags-hier-fill ()
+ ;; Suppose we are in a tag table cooked by cperl.
+ (goto-char 1)
+ (let (type pack name pos line chunk ord cons1 file str info fileind)
+ (while (re-search-forward cperl-tags-hier-regexp-list nil t)
+ (setq pos (match-beginning 0)
+ pack (match-beginning 2))
+ (beginning-of-line)
+ (if (looking-at (concat
+ "\\([^\n]+\\)"
+ "\C-?"
+ "\\([^\n]+\\)"
+ "\C-a"
+ "\\([0-9]+\\)"
+ ","
+ "\\([0-9]+\\)"))
+ (progn
+ (setq ;;str (buffer-substring (match-beginning 1) (match-end 1))
+ name (buffer-substring (match-beginning 2) (match-end 2))
+ ;;pos (buffer-substring (match-beginning 3) (match-end 3))
+ line (buffer-substring (match-beginning 4) (match-end 4))
+ ord (if pack 1 0)
+ info (etags-snarf-tag) ; Moves to beginning of the next line
+ file (file-of-tag)
+ fileind (format "%s:%s" file line))
+ ;; Move back
+ (forward-char -1)
+ ;; Make new member of hierarchy name ==> file ==> pos if needed
+ (if (setq cons1 (assoc name (nth ord cperl-hierarchy)))
+ ;; Name known
+ (setcdr cons1 (cons (cons fileind (vector file info))
+ (cdr cons1)))
+ ;; First occurrence of the name, start alist
+ (setq cons1 (cons name (list (cons fileind (vector file info)))))
+ (if pack
+ (setcar (cdr cperl-hierarchy)
+ (cons cons1 (nth 1 cperl-hierarchy)))
+ (setcar cperl-hierarchy
+ (cons cons1 (car cperl-hierarchy)))))))
+ (end-of-line))))
+
+(defun cperl-tags-hier-init (&optional update)
+ "Show hierarchical menu of classes and methods.
+Finds info about classes by a scan of loaded TAGS files.
+Supposes that the TAGS files contain fully qualified function names.
+One may build such TAGS files from CPerl mode menu."
+ (interactive)
+ (require 'etags)
+ (require 'imenu)
+ (if (or update (null (nth 2 cperl-hierarchy)))
+ (let (pack name cons1 to l1 l2 l3 l4
+ (remover (function (lambda (elt) ; (name (file1...) (file2..))
+ (or (nthcdr 2 elt)
+ ;; Only in one file
+ (setcdr elt (cdr (nth 1 elt))))))))
+ ;; (setq cperl-hierarchy '(() () ())) ; Would write into '() later!
+ (setq cperl-hierarchy (list l1 l2 l3))
+ (or tags-table-list
+ (call-interactively 'visit-tags-table))
+ (message "Updating list of classes...")
+ (mapcar
+ (function
+ (lambda (tagsfile)
+ (set-buffer (get-file-buffer tagsfile))
+ (cperl-tags-hier-fill)))
+ tags-table-list)
+ (mapcar remover (car cperl-hierarchy))
+ (mapcar remover (nth 1 cperl-hierarchy))
+ (setq to (list nil (cons "Packages: " (nth 1 cperl-hierarchy))
+ (cons "Methods: " (car cperl-hierarchy))))
+ (cperl-tags-treeify to 1)
+ (setcar (nthcdr 2 cperl-hierarchy)
+ (cperl-menu-to-keymap (cons '("+++UPDATE+++" . -999) (cdr to))))
+ (message "Updating list of classes: done, requesting display...")
+ ;;(cperl-imenu-addback (nth 2 cperl-hierarchy))
+ ))
+ (or (nth 2 cperl-hierarchy)
+ (error "No items found"))
+ (setq update
+;;; (imenu-choose-buffer-index "Packages: " (nth 2 cperl-hierarchy))
+ (if window-system
+ (x-popup-menu t (nth 2 cperl-hierarchy))
+ (require 'tmm)
+ (tmm-prompt (nth 2 cperl-hierarchy))))
+ (if (and update (listp update))
+ (progn (while (cdr update) (setq update (cdr update)))
+ (setq update (car update)))) ; Get the last from the list
+ (if (vectorp update)
+ (progn
+ (find-file (elt update 0))
+ (etags-goto-tag-location (elt update 1))))
+ (if (eq update -999) (cperl-tags-hier-init t)))
+
+(defun cperl-tags-treeify (to level)
+ ;; cadr of `to' is read-write. On start it is a cons
+ (let* ((regexp (concat "^\\(" (mapconcat
+ 'identity
+ (make-list level "[_a-zA-Z0-9]+")
+ "::")
+ "\\)\\(::\\)?"))
+ (packages (cdr (nth 1 to)))
+ (methods (cdr (nth 2 to)))
+ l1 head tail cons1 cons2 ord writeto packs recurse
+ root-packages root-functions ms many_ms same_name ps
+ (move-deeper
+ (function
+ (lambda (elt)
+ (cond ((and (string-match regexp (car elt))
+ (or (eq ord 1) (match-end 2)))
+ (setq head (substring (car elt) 0 (match-end 1))
+ tail (if (match-end 2) (substring (car elt)
+ (match-end 2)))
+ recurse t)
+ (if (setq cons1 (assoc head writeto)) nil
+ ;; Need to init new head
+ (setcdr writeto (cons (list head (list "Packages: ")
+ (list "Methods: "))
+ (cdr writeto)))
+ (setq cons1 (nth 1 writeto)))
+ (setq cons2 (nth ord cons1)) ; Either packs or meths
+ (setcdr cons2 (cons elt (cdr cons2))))
+ ((eq ord 2)
+ (setq root-functions (cons elt root-functions)))
+ (t
+ (setq root-packages (cons elt root-packages))))))))
+ (setcdr to l1) ; Init to dynamic space
+ (setq writeto to)
+ (setq ord 1)
+ (mapcar move-deeper packages)
+ (setq ord 2)
+ (mapcar move-deeper methods)
+ (if recurse
+ (mapcar (function (lambda (elt)
+ (cperl-tags-treeify elt (1+ level))))
+ (cdr to)))
+ ;;Now clean up leaders with one child only
+ (mapcar (function (lambda (elt)
+ (if (not (and (listp (cdr elt))
+ (eq (length elt) 2))) nil
+ (setcar elt (car (nth 1 elt)))
+ (setcdr elt (cdr (nth 1 elt))))))
+ (cdr to))
+ ;; Sort the roots of subtrees
+ (if (default-value 'imenu-sort-function)
+ (setcdr to
+ (sort (cdr to) (default-value 'imenu-sort-function))))
+ ;; Now add back functions removed from display
+ (mapcar (function (lambda (elt)
+ (setcdr to (cons elt (cdr to)))))
+ (if (default-value 'imenu-sort-function)
+ (nreverse
+ (sort root-functions (default-value 'imenu-sort-function)))
+ root-functions))
+ ;; Now add back packages removed from display
+ (mapcar (function (lambda (elt)
+ (setcdr to (cons (cons (concat "package " (car elt))
+ (cdr elt))
+ (cdr to)))))
+ (if (default-value 'imenu-sort-function)
+ (nreverse
+ (sort root-packages (default-value 'imenu-sort-function)))
+ root-packages))
+ ))
+
+;;;(x-popup-menu t
+;;; '(keymap "Name1"
+;;; ("Ret1" "aa")
+;;; ("Head1" "ab"
+;;; keymap "Name2"
+;;; ("Tail1" "x") ("Tail2" "y"))))
+
+(defun cperl-list-fold (list name limit)
+ (let (list1 list2 elt1 (num 0))
+ (if (<= (length list) limit) list
+ (setq list1 nil list2 nil)
+ (while list
+ (setq num (1+ num)
+ elt1 (car list)
+ list (cdr list))
+ (if (<= num imenu-max-items)
+ (setq list2 (cons elt1 list2))
+ (setq list1 (cons (cons name
+ (nreverse list2))
+ list1)
+ list2 (list elt1)
+ num 1)))
+ (nreverse (cons (cons name
+ (nreverse list2))
+ list1)))))
+
+(defun cperl-menu-to-keymap (menu &optional name)
+ (let (list)
+ (cons 'keymap
+ (mapcar
+ (function
+ (lambda (elt)
+ (cond ((listp (cdr elt))
+ (setq list (cperl-list-fold
+ (cdr elt) (car elt) imenu-max-items))
+ (cons nil
+ (cons (car elt)
+ (cperl-menu-to-keymap list))))
+ (t
+ (list (cdr elt) (car elt) t))))) ; t is needed in 19.34
+ (cperl-list-fold menu "Root" imenu-max-items)))))
+
+\f
+(defvar cperl-bad-style-regexp
+ (mapconcat 'identity
+ '("[^-\n\t <>=+!.&|(*/'`\"#^][-=+<>!|&^]" ; char sign
+ "[-<>=+^&|]+[^- \t\n=+<>~]" ; sign+ char
+ )
+ "\\|")
+ "Finds places such that insertion of a whitespace may help a lot.")
+
+(defvar cperl-not-bad-style-regexp
+ (mapconcat 'identity
+ '("[^-\t <>=+]\\(--\\|\\+\\+\\)" ; var-- var++
+ "[a-zA-Z0-9_][|&][a-zA-Z0-9_$]" ; abc|def abc&def are often used.
+ "&[(a-zA-Z0-9_$]" ; &subroutine &(var->field)
+ "<\\$?\\sw+\\(\\.\\sw+\\)?>" ; <IN> <stdin.h>
+ "-[a-zA-Z][ \t]+[_$\"'`]" ; -f file
+ "-[0-9]" ; -5
+ "\\+\\+" ; ++var
+ "--" ; --var
+ ".->" ; a->b
+ "->" ; a SPACE ->b
+ "\\[-" ; a[-1]
+ "^=" ; =head
+ "||"
+ "&&"
+ "[CBIXSLFZ]<\\(\\sw\\|\\s \\|\\s_\\|[\n]\\)*>" ; C<code like text>
+ "-[a-zA-Z_0-9]+[ \t]*=>" ; -option => value
+ ;; Unaddressed trouble spots: = -abc, f(56, -abc) --- specialcased below
+ ;;"[*/+-|&<.]+="
+ )
+ "\\|")
+ "If matches at the start of match found by `my-bad-c-style-regexp',
+insertion of a whitespace will not help.")
+
+(defvar found-bad)
+
+(defun cperl-find-bad-style ()
+ "Find places in the buffer where insertion of a whitespace may help.
+Prompts user for insertion of spaces.
+Currently it is tuned to C and Perl syntax."
+ (interactive)
+ (let (found-bad (p (point)))
+ (setq last-nonmenu-event 13) ; To disable popup
+ (beginning-of-buffer)
+ (map-y-or-n-p "Insert space here? "
+ (function (lambda (arg) (insert " ")))
+ 'cperl-next-bad-style
+ '("location" "locations" "insert a space into")
+ '((?\C-r (lambda (arg)
+ (let ((buffer-quit-function
+ 'exit-recursive-edit))
+ (message "Exit with Esc Esc")
+ (recursive-edit)
+ t)) ; Consider acted upon
+ "edit, exit with Esc Esc")
+ (?e (lambda (arg)
+ (let ((buffer-quit-function
+ 'exit-recursive-edit))
+ (message "Exit with Esc Esc")
+ (recursive-edit)
+ t)) ; Consider acted upon
+ "edit, exit with Esc Esc"))
+ t)
+ (if found-bad (goto-char found-bad)
+ (goto-char p)
+ (message "No appropriate place found"))))
+
+(defun cperl-next-bad-style ()
+ (let (p (not-found t) (point (point)) found)
+ (while (and not-found
+ (re-search-forward cperl-bad-style-regexp nil 'to-end))
+ (setq p (point))
+ (goto-char (match-beginning 0))
+ (if (or
+ (looking-at cperl-not-bad-style-regexp)
+ ;; Check for a < -b and friends
+ (and (eq (following-char) ?\-)
+ (save-excursion
+ (skip-chars-backward " \t\n")
+ (memq (preceding-char) '(?\= ?\> ?\< ?\, ?\(, ?\[, ?\{))))
+ ;; Now check for syntax type
+ (save-match-data
+ (setq found (point))
+ (beginning-of-defun)
+ (let ((pps (parse-partial-sexp (point) found)))
+ (or (nth 3 pps) (nth 4 pps) (nth 5 pps)))))
+ (goto-char (match-end 0))
+ (goto-char (1- p))
+ (setq not-found nil
+ found-bad found)))
+ (not not-found)))
+
+\ 6
+;;; Getting help
+(defvar cperl-have-help-regexp
+ ;;(concat "\\("
+ (mapconcat
+ 'identity
+ '("[$@%*&][0-9a-zA-Z_:]+\\([ \t]*[[{]\\)?" ; Usual variable
+ "[$@]\\^[a-zA-Z]" ; Special variable
+ "[$@][^ \n\t]" ; Special variable
+ "-[a-zA-Z]" ; File test
+ "\\\\[a-zA-Z0]" ; Special chars
+ "^=[a-z][a-zA-Z0-9_]*" ; Pod sections
+ "[-!&*+,-./<=>?\\\\^|~]+" ; Operator
+ "[a-zA-Z_0-9:]+" ; symbol or number
+ "x="
+ "#!"
+ )
+ ;;"\\)\\|\\("
+ "\\|"
+ )
+ ;;"\\)"
+ ;;)
+ "Matches places in the buffer we can find help for.")
+
+(defvar cperl-message-on-help-error t)
+(defvar cperl-help-from-timer nil)
+
+(defun cperl-word-at-point-hard ()
+ ;; Does not save-excursion
+ ;; Get to the something meaningful
+ (or (eobp) (eolp) (forward-char 1))
+ (re-search-backward "[-a-zA-Z0-9_:!&*+,-./<=>?\\\\^|~$%@]"
+ (save-excursion (beginning-of-line) (point))
+ 'to-beg)
+ ;; (cond
+ ;; ((or (eobp) (looking-at "[][ \t\n{}();,]")) ; Not at a symbol
+ ;; (skip-chars-backward " \n\t\r({[]});,")
+ ;; (or (bobp) (backward-char 1))))
+ ;; Try to backtrace
+ (cond
+ ((looking-at "[a-zA-Z0-9_:]") ; symbol
+ (skip-chars-backward "a-zA-Z0-9_:")
+ (cond
+ ((and (eq (preceding-char) ?^) ; $^I
+ (eq (char-after (- (point) 2)) ?\$))
+ (forward-char -2))
+ ((memq (preceding-char) (append "*$@%&\\" nil)) ; *glob
+ (forward-char -1))
+ ((and (eq (preceding-char) ?\=)
+ (eq (current-column) 1))
+ (forward-char -1))) ; =head1
+ (if (and (eq (preceding-char) ?\<)
+ (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <FH>
+ (forward-char -1)))
+ ((and (looking-at "=") (eq (preceding-char) ?x)) ; x=
+ (forward-char -1))
+ ((and (looking-at "\\^") (eq (preceding-char) ?\$)) ; $^I
+ (forward-char -1))
+ ((looking-at "[-!&*+,-./<=>?\\\\^|~]")
+ (skip-chars-backward "-!&*+,-./<=>?\\\\^|~")
+ (cond
+ ((and (eq (preceding-char) ?\$)
+ (not (eq (char-after (- (point) 2)) ?\$))) ; $-
+ (forward-char -1))
+ ((and (eq (following-char) ?\>)
+ (string-match "[a-zA-Z0-9_]" (char-to-string (preceding-char)))
+ (save-excursion
+ (forward-sexp -1)
+ (and (eq (preceding-char) ?\<)
+ (looking-at "\\$?[a-zA-Z0-9_:]+>")))) ; <FH>
+ (search-backward "<"))))
+ ((and (eq (following-char) ?\$)
+ (eq (preceding-char) ?\<)
+ (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <$fh>
+ (forward-char -1)))
+ (if (looking-at cperl-have-help-regexp)
+ (buffer-substring (match-beginning 0) (match-end 0))))
+
+(defun cperl-get-help ()
+ "Get one-line docs on the symbol at the point.
+The data for these docs is a little bit obsolete and may be in fact longer
+than a line. Your contribution to update/shorten it is appreciated."
+ (interactive)
+ (save-match-data ; May be called "inside" query-replace
+ (save-excursion
+ (let ((word (cperl-word-at-point-hard)))
+ (if word
+ (if (and cperl-help-from-timer ; Bail out if not in mainland
+ (not (string-match "^#!\\|\\\\\\|^=" word)) ; Show help even in comments/strings.
+ (or (memq (get-text-property (point) 'face)
+ '(font-lock-comment-face font-lock-string-face))
+ (memq (get-text-property (point) 'syntax-type)
+ '(pod here-doc format))))
+ nil
+ (cperl-describe-perl-symbol word))
+ (if cperl-message-on-help-error
+ (message "Nothing found for %s..."
+ (buffer-substring (point) (min (+ 5 (point)) (point-max))))))))))
+
+;;; Stolen from perl-descr.el by Johan Vromans:
+
+(defvar cperl-doc-buffer " *perl-doc*"
+ "Where the documentation can be found.")
+
+(defun cperl-describe-perl-symbol (val)
+ "Display the documentation of symbol at point, a Perl operator."
+ (let ((enable-recursive-minibuffers t)
+ args-file regexp)
+ (cond
+ ((string-match "^[&*][a-zA-Z_]" val)
+ (setq val (concat (substring val 0 1) "NAME")))
+ ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*\\[" val)
+ (setq val (concat "@" (substring val 1 (match-end 1)))))
+ ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*{" val)
+ (setq val (concat "%" (substring val 1 (match-end 1)))))
+ ((and (string= val "x") (string-match "^x=" val))
+ (setq val "x="))
+ ((string-match "^\\$[\C-a-\C-z]" val)
+ (setq val (concat "$^" (char-to-string (+ ?A -1 (aref val 1))))))
+ ((string-match "^CORE::" val)
+ (setq val "CORE::"))
+ ((string-match "^SUPER::" val)
+ (setq val "SUPER::"))
+ ((and (string= "<" val) (string-match "^<\\$?[a-zA-Z0-9_:]+>" val))
+ (setq val "<NAME>")))
+ (setq regexp (concat "^"
+ "\\([^a-zA-Z0-9_:]+[ \t]+\\)?"
+ (regexp-quote val)
+ "\\([ \t([/]\\|$\\)"))
+
+ ;; get the buffer with the documentation text
+ (cperl-switch-to-doc-buffer)
+
+ ;; lookup in the doc
+ (goto-char (point-min))
+ (let ((case-fold-search nil))
+ (list
+ (if (re-search-forward regexp (point-max) t)
+ (save-excursion
+ (beginning-of-line 1)
+ (let ((lnstart (point)))
+ (end-of-line)
+ (message "%s" (buffer-substring lnstart (point)))))
+ (if cperl-message-on-help-error
+ (message "No definition for %s" val)))))))
+
+(defvar cperl-short-docs "Ignore my value"
+ ;; Perl4 version was written by Johan Vromans (jvromans@squirrel.nl)
+ "# based on '@(#)@ perl-descr.el 1.9 - describe-perl-symbol' [Perl 5]
+! ... Logical negation.
+... != ... Numeric inequality.
+... !~ ... Search pattern, substitution, or translation (negated).
+$! In numeric context: errno. In a string context: error string.
+$\" The separator which joins elements of arrays interpolated in strings.
+$# The output format for printed numbers. Initial value is %.15g or close.
+$$ Process number of this script. Changes in the fork()ed child process.
+$% The current page number of the currently selected output channel.
+
+ The following variables are always local to the current block:
+
+$1 Match of the 1st set of parentheses in the last match (auto-local).
+$2 Match of the 2nd set of parentheses in the last match (auto-local).
+$3 Match of the 3rd set of parentheses in the last match (auto-local).
+$4 Match of the 4th set of parentheses in the last match (auto-local).
+$5 Match of the 5th set of parentheses in the last match (auto-local).
+$6 Match of the 6th set of parentheses in the last match (auto-local).
+$7 Match of the 7th set of parentheses in the last match (auto-local).
+$8 Match of the 8th set of parentheses in the last match (auto-local).
+$9 Match of the 9th set of parentheses in the last match (auto-local).
+$& The string matched by the last pattern match (auto-local).
+$' The string after what was matched by the last match (auto-local).
+$` The string before what was matched by the last match (auto-local).
+
+$( The real gid of this process.
+$) The effective gid of this process.
+$* Deprecated: Set to 1 to do multiline matching within a string.
+$+ The last bracket matched by the last search pattern.
+$, The output field separator for the print operator.
+$- The number of lines left on the page.
+$. The current input line number of the last filehandle that was read.
+$/ The input record separator, newline by default.
+$0 Name of the file containing the perl script being executed. May be set.
+$: String may be broken after these characters to fill ^-lines in a format.
+$; Subscript separator for multi-dim array emulation. Default \"\\034\".
+$< The real uid of this process.
+$= The page length of the current output channel. Default is 60 lines.
+$> The effective uid of this process.
+$? The status returned by the last ``, pipe close or `system'.
+$@ The perl error message from the last eval or do @var{EXPR} command.
+$ARGV The name of the current file used with <> .
+$[ Deprecated: The index of the first element/char in an array/string.
+$\\ The output record separator for the print operator.
+$] The perl version string as displayed with perl -v.
+$^ The name of the current top-of-page format.
+$^A The current value of the write() accumulator for format() lines.
+$^D The value of the perl debug (-D) flags.
+$^E Information about the last system error other than that provided by $!.
+$^F The highest system file descriptor, ordinarily 2.
+$^H The current set of syntax checks enabled by `use strict'.
+$^I The value of the in-place edit extension (perl -i option).
+$^L What formats output to perform a formfeed. Default is \f.
+$^O The operating system name under which this copy of Perl was built.
+$^P Internal debugging flag.
+$^T The time the script was started. Used by -A/-M/-C file tests.
+$^W True if warnings are requested (perl -w flag).
+$^X The name under which perl was invoked (argv[0] in C-speech).
+$_ The default input and pattern-searching space.
+$| Auto-flush after write/print on the current output channel? Default 0.
+$~ The name of the current report format.
+... % ... Modulo division.
+... %= ... Modulo division assignment.
+%ENV Contains the current environment.
+%INC List of files that have been require-d or do-ne.
+%SIG Used to set signal handlers for various signals.
+... & ... Bitwise and.
+... && ... Logical and.
+... &&= ... Logical and assignment.
+... &= ... Bitwise and assignment.
+... * ... Multiplication.
+... ** ... Exponentiation.
+*NAME Glob: all objects refered by NAME. *NAM1 = *NAM2 aliases NAM1 to NAM2.
+&NAME(arg0, ...) Subroutine call. Arguments go to @_.
+... + ... Addition. +EXPR Makes EXPR into scalar context.
+++ Auto-increment (magical on strings). ++EXPR EXPR++
+... += ... Addition assignment.
+, Comma operator.
+... - ... Subtraction.
+-- Auto-decrement (NOT magical on strings). --EXPR EXPR--
+... -= ... Subtraction assignment.
+-A Access time in days since script started.
+-B File is a non-text (binary) file.
+-C Inode change time in days since script started.
+-M Age in days since script started.
+-O File is owned by real uid.
+-R File is readable by real uid.
+-S File is a socket .
+-T File is a text file.
+-W File is writable by real uid.
+-X File is executable by real uid.
+-b File is a block special file.
+-c File is a character special file.
+-d File is a directory.
+-e File exists .
+-f File is a plain file.
+-g File has setgid bit set.
+-k File has sticky bit set.
+-l File is a symbolic link.
+-o File is owned by effective uid.
+-p File is a named pipe (FIFO).
+-r File is readable by effective uid.
+-s File has non-zero size.
+-t Tests if filehandle (STDIN by default) is opened to a tty.
+-u File has setuid bit set.
+-w File is writable by effective uid.
+-x File is executable by effective uid.
+-z File has zero size.
+. Concatenate strings.
+.. Alternation, also range operator.
+.= Concatenate assignment strings
+... / ... Division. /PATTERN/ioxsmg Pattern match
+... /= ... Division assignment.
+/PATTERN/ioxsmg Pattern match.
+... < ... Numeric less than. <pattern> Glob. See <NAME>, <> as well.
+<NAME> Reads line from filehandle NAME. NAME must be bareword/dollar-bareword.
+<pattern> Glob. (Unless pattern is bareword/dollar-bareword - see <NAME>)
+<> Reads line from union of files in @ARGV (= command line) and STDIN.
+... << ... Bitwise shift left. << start of HERE-DOCUMENT.
+... <= ... Numeric less than or equal to.
+... <=> ... Numeric compare.
+... = ... Assignment.
+... == ... Numeric equality.
+... =~ ... Search pattern, substitution, or translation
+... > ... Numeric greater than.
+... >= ... Numeric greater than or equal to.
+... >> ... Bitwise shift right.
+... >>= ... Bitwise shift right assignment.
+... ? ... : ... Condition=if-then-else operator. ?PAT? One-time pattern match.
+?PATTERN? One-time pattern match.
+@ARGV Command line arguments (not including the command name - see $0).
+@INC List of places to look for perl scripts during do/include/use.
+@_ Parameter array for subroutines. Also used by split unless in array context.
+\\ Creates reference to what follows, like \$var, or quotes non-\w in strings.
+\\0 Octal char, e.g. \\033.
+\\E Case modification terminator. See \\Q, \\L, and \\U.
+\\L Lowercase until \\E . See also \l, lc.
+\\U Upcase until \\E . See also \u, uc.
+\\Q Quote metacharacters until \\E . See also quotemeta.
+\\a Alarm character (octal 007).
+\\b Backspace character (octal 010).
+\\c Control character, e.g. \\c[ .
+\\e Escape character (octal 033).
+\\f Formfeed character (octal 014).
+\\l Lowercase the next character. See also \\L and \\u, lcfirst.
+\\n Newline character (octal 012 on most systems).
+\\r Return character (octal 015 on most systems).
+\\t Tab character (octal 011).
+\\u Upcase the next character. See also \\U and \\l, ucfirst.
+\\x Hex character, e.g. \\x1b.
+... ^ ... Bitwise exclusive or.
+__END__ Ends program source.
+__DATA__ Ends program source.
+__FILE__ Current (source) filename.
+__LINE__ Current line in current source.
+__PACKAGE__ Current package.
+ARGV Default multi-file input filehandle. <ARGV> is a synonym for <>.
+ARGVOUT Output filehandle with -i flag.
+BEGIN { ... } Immediately executed (during compilation) piece of code.
+END { ... } Pseudo-subroutine executed after the script finishes.
+DATA Input filehandle for what follows after __END__ or __DATA__.
+accept(NEWSOCKET,GENERICSOCKET)
+alarm(SECONDS)
+atan2(X,Y)
+bind(SOCKET,NAME)
+binmode(FILEHANDLE)
+caller[(LEVEL)]
+chdir(EXPR)
+chmod(LIST)
+chop[(LIST|VAR)]
+chown(LIST)
+chroot(FILENAME)
+close(FILEHANDLE)
+closedir(DIRHANDLE)
+... cmp ... String compare.
+connect(SOCKET,NAME)
+continue of { block } continue { block }. Is executed after `next' or at end.
+cos(EXPR)
+crypt(PLAINTEXT,SALT)
+dbmclose(%HASH)
+dbmopen(%HASH,DBNAME,MODE)
+defined(EXPR)
+delete($HASH{KEY})
+die(LIST)
+do { ... }|SUBR while|until EXPR executes at least once
+do(EXPR|SUBR([LIST])) (with while|until executes at least once)
+dump LABEL
+each(%HASH)
+endgrent
+endhostent
+endnetent
+endprotoent
+endpwent
+endservent
+eof[([FILEHANDLE])]
+... eq ... String equality.
+eval(EXPR) or eval { BLOCK }
+exec(LIST)
+exit(EXPR)
+exp(EXPR)
+fcntl(FILEHANDLE,FUNCTION,SCALAR)
+fileno(FILEHANDLE)
+flock(FILEHANDLE,OPERATION)
+for (EXPR;EXPR;EXPR) { ... }
+foreach [VAR] (@ARRAY) { ... }
+fork
+... ge ... String greater than or equal.
+getc[(FILEHANDLE)]
+getgrent
+getgrgid(GID)
+getgrnam(NAME)
+gethostbyaddr(ADDR,ADDRTYPE)
+gethostbyname(NAME)
+gethostent
+getlogin
+getnetbyaddr(ADDR,ADDRTYPE)
+getnetbyname(NAME)
+getnetent
+getpeername(SOCKET)
+getpgrp(PID)
+getppid
+getpriority(WHICH,WHO)
+getprotobyname(NAME)
+getprotobynumber(NUMBER)
+getprotoent
+getpwent
+getpwnam(NAME)
+getpwuid(UID)
+getservbyname(NAME,PROTO)
+getservbyport(PORT,PROTO)
+getservent
+getsockname(SOCKET)
+getsockopt(SOCKET,LEVEL,OPTNAME)
+gmtime(EXPR)
+goto LABEL
+grep(EXPR,LIST)
+... gt ... String greater than.
+hex(EXPR)
+if (EXPR) { ... } [ elsif (EXPR) { ... } ... ] [ else { ... } ] or EXPR if EXPR
+index(STR,SUBSTR[,OFFSET])
+int(EXPR)
+ioctl(FILEHANDLE,FUNCTION,SCALAR)
+join(EXPR,LIST)
+keys(%HASH)
+kill(LIST)
+last [LABEL]
+... le ... String less than or equal.
+length(EXPR)
+link(OLDFILE,NEWFILE)
+listen(SOCKET,QUEUESIZE)
+local(LIST)
+localtime(EXPR)
+log(EXPR)
+lstat(EXPR|FILEHANDLE|VAR)
+... lt ... String less than.
+m/PATTERN/iogsmx
+mkdir(FILENAME,MODE)
+msgctl(ID,CMD,ARG)
+msgget(KEY,FLAGS)
+msgrcv(ID,VAR,SIZE,TYPE.FLAGS)
+msgsnd(ID,MSG,FLAGS)
+my VAR or my (VAR1,...) Introduces a lexical variable ($VAR, @ARR, or %HASH).
+... ne ... String inequality.
+next [LABEL]
+oct(EXPR)
+open(FILEHANDLE[,EXPR])
+opendir(DIRHANDLE,EXPR)
+ord(EXPR) ASCII value of the first char of the string.
+pack(TEMPLATE,LIST)
+package NAME Introduces package context.
+pipe(READHANDLE,WRITEHANDLE) Create a pair of filehandles on ends of a pipe.
+pop(ARRAY)
+print [FILEHANDLE] [(LIST)]
+printf [FILEHANDLE] (FORMAT,LIST)
+push(ARRAY,LIST)
+q/STRING/ Synonym for 'STRING'
+qq/STRING/ Synonym for \"STRING\"
+qx/STRING/ Synonym for `STRING`
+rand[(EXPR)]
+read(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
+readdir(DIRHANDLE)
+readlink(EXPR)
+recv(SOCKET,SCALAR,LEN,FLAGS)
+redo [LABEL]
+rename(OLDNAME,NEWNAME)
+require [FILENAME | PERL_VERSION]
+reset[(EXPR)]
+return(LIST)
+reverse(LIST)
+rewinddir(DIRHANDLE)
+rindex(STR,SUBSTR[,OFFSET])
+rmdir(FILENAME)
+s/PATTERN/REPLACEMENT/gieoxsm
+scalar(EXPR)
+seek(FILEHANDLE,POSITION,WHENCE)
+seekdir(DIRHANDLE,POS)
+select(FILEHANDLE | RBITS,WBITS,EBITS,TIMEOUT)
+semctl(ID,SEMNUM,CMD,ARG)
+semget(KEY,NSEMS,SIZE,FLAGS)
+semop(KEY,...)
+send(SOCKET,MSG,FLAGS[,TO])
+setgrent
+sethostent(STAYOPEN)
+setnetent(STAYOPEN)
+setpgrp(PID,PGRP)
+setpriority(WHICH,WHO,PRIORITY)
+setprotoent(STAYOPEN)
+setpwent
+setservent(STAYOPEN)
+setsockopt(SOCKET,LEVEL,OPTNAME,OPTVAL)
+shift[(ARRAY)]
+shmctl(ID,CMD,ARG)
+shmget(KEY,SIZE,FLAGS)
+shmread(ID,VAR,POS,SIZE)
+shmwrite(ID,STRING,POS,SIZE)
+shutdown(SOCKET,HOW)
+sin(EXPR)
+sleep[(EXPR)]
+socket(SOCKET,DOMAIN,TYPE,PROTOCOL)
+socketpair(SOCKET1,SOCKET2,DOMAIN,TYPE,PROTOCOL)
+sort [SUBROUTINE] (LIST)
+splice(ARRAY,OFFSET[,LENGTH[,LIST]])
+split[(/PATTERN/[,EXPR[,LIMIT]])]
+sprintf(FORMAT,LIST)
+sqrt(EXPR)
+srand(EXPR)
+stat(EXPR|FILEHANDLE|VAR)
+study[(SCALAR)]
+sub [NAME [(format)]] { BODY } sub NAME [(format)]; sub [(format)] {...}
+substr(EXPR,OFFSET[,LEN])
+symlink(OLDFILE,NEWFILE)
+syscall(LIST)
+sysread(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
+system(LIST)
+syswrite(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
+tell[(FILEHANDLE)]
+telldir(DIRHANDLE)
+time
+times
+tr/SEARCHLIST/REPLACEMENTLIST/cds
+truncate(FILE|EXPR,LENGTH)
+umask[(EXPR)]
+undef[(EXPR)]
+unless (EXPR) { ... } [ else { ... } ] or EXPR unless EXPR
+unlink(LIST)
+unpack(TEMPLATE,EXPR)
+unshift(ARRAY,LIST)
+until (EXPR) { ... } EXPR until EXPR
+utime(LIST)
+values(%HASH)
+vec(EXPR,OFFSET,BITS)
+wait
+waitpid(PID,FLAGS)
+wantarray Returns true if the sub/eval is called in list context.
+warn(LIST)
+while (EXPR) { ... } EXPR while EXPR
+write[(EXPR|FILEHANDLE)]
+... x ... Repeat string or array.
+x= ... Repetition assignment.
+y/SEARCHLIST/REPLACEMENTLIST/
+... | ... Bitwise or.
+... || ... Logical or.
+~ ... Unary bitwise complement.
+#! OS interpreter indicator. If contains `perl', used for options, and -x.
+AUTOLOAD {...} Shorthand for `sub AUTOLOAD {...}'.
+CORE:: Prefix to access builtin function if imported sub obscures it.
+SUPER:: Prefix to lookup for a method in @ISA classes.
+DESTROY Shorthand for `sub DESTROY {...}'.
+... EQ ... Obsolete synonym of `eq'.
+... GE ... Obsolete synonym of `ge'.
+... GT ... Obsolete synonym of `gt'.
+... LE ... Obsolete synonym of `le'.
+... LT ... Obsolete synonym of `lt'.
+... NE ... Obsolete synonym of `ne'.
+abs [ EXPR ] absolute value
+... and ... Low-precedence synonym for &&.
+bless REFERENCE [, PACKAGE] Makes reference into an object of a package.
+chomp [LIST] Strips $/ off LIST/$_. Returns count. Special if $/ eq ''!
+chr Converts a number to char with the same ordinal.
+else Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
+elsif Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
+exists $HASH{KEY} True if the key exists.
+format [NAME] = Start of output format. Ended by a single dot (.) on a line.
+formline PICTURE, LIST Backdoor into \"format\" processing.
+glob EXPR Synonym of <EXPR>.
+lc [ EXPR ] Returns lowercased EXPR.
+lcfirst [ EXPR ] Returns EXPR with lower-cased first letter.
+map EXPR, LIST or map {BLOCK} LIST Applies EXPR/BLOCK to elts of LIST.
+no PACKAGE [SYMBOL1, ...] Partial reverse for `use'. Runs `unimport' method.
+not ... Low-precedence synonym for ! - negation.
+... or ... Low-precedence synonym for ||.
+pos STRING Set/Get end-position of the last match over this string, see \\G.
+quotemeta [ EXPR ] Quote regexp metacharacters.
+qw/WORD1 .../ Synonym of split('', 'WORD1 ...')
+readline FH Synonym of <FH>.
+readpipe CMD Synonym of `CMD`.
+ref [ EXPR ] Type of EXPR when dereferenced.
+sysopen FH, FILENAME, MODE [, PERM] (MODE is numeric, see Fcntl.)
+tie VAR, PACKAGE, LIST Hide an object behind a simple Perl variable.
+tied Returns internal object for a tied data.
+uc [ EXPR ] Returns upcased EXPR.
+ucfirst [ EXPR ] Returns EXPR with upcased first letter.
+untie VAR Unlink an object from a simple Perl variable.
+use PACKAGE [SYMBOL1, ...] Compile-time `require' with consequent `import'.
+... xor ... Low-precedence synonym for exclusive or.
+prototype \&SUB Returns prototype of the function given a reference.
+=head1 Top-level heading.
+=head2 Second-level heading.
+=head3 Third-level heading (is there such?).
+=over [ NUMBER ] Start list.
+=item [ TITLE ] Start new item in the list.
+=back End list.
+=cut Switch from POD to Perl.
+=pod Switch from Perl to POD.
+")
+
+(defun cperl-switch-to-doc-buffer ()
+ "Go to the perl documentation buffer and insert the documentation."
+ (interactive)
+ (let ((buf (get-buffer-create cperl-doc-buffer)))
+ (if (interactive-p)
+ (switch-to-buffer-other-window buf)
+ (set-buffer buf))
+ (if (= (buffer-size) 0)
+ (progn
+ (insert (documentation-property 'cperl-short-docs
+ 'variable-documentation))
+ (setq buffer-read-only t)))))
+
+(defun cperl-beautify-regexp-piece (b e embed)
+ ;; b is before the starting delimiter, e before the ending
+ ;; e should be a marker, may be changed, but remains "correct".
+ (let (s c tmp (m (make-marker)) (m1 (make-marker)) c1 spaces inline code)
+ (if (not embed)
+ (goto-char (1+ b))
+ (goto-char b)
+ (cond ((looking-at "(\\?\\\\#") ; badly commented (?#)
+ (forward-char 2)
+ (delete-char 1)
+ (forward-char 1))
+ ((looking-at "(\\?[^a-zA-Z]")
+ (forward-char 3))
+ ((looking-at "(\\?") ; (?i)
+ (forward-char 2))
+ (t
+ (forward-char 1))))
+ (setq c (if embed (current-indentation) (1- (current-column)))
+ c1 (+ c (or cperl-regexp-indent-step cperl-indent-level)))
+ (or (looking-at "[ \t]*[\n#]")
+ (progn
+ (insert "\n")))
+ (goto-char e)
+ (beginning-of-line)
+ (if (re-search-forward "[^ \t]" e t)
+ (progn
+ (goto-char e)
+ (insert "\n")
+ (indent-to-column c)
+ (set-marker e (point))))
+ (goto-char b)
+ (end-of-line 2)
+ (while (< (point) (marker-position e))
+ (beginning-of-line)
+ (setq s (point)
+ inline t)
+ (skip-chars-forward " \t")
+ (delete-region s (point))
+ (indent-to-column c1)
+ (while (and
+ inline
+ (looking-at
+ (concat "\\([a-zA-Z0-9]+[^*+{?]\\)" ; 1 word
+ "\\|" ; Embedded variable
+ "\\$\\([a-zA-Z0-9_]+\\([[{]\\)?\\|[^\n \t)|]\\)" ; 2 3
+ "\\|" ; $ ^
+ "[$^]"
+ "\\|" ; simple-code simple-code*?
+ "\\(\\\\.\\|[^][()#|*+?\n]\\)\\([*+{?]\\??\\)?" ; 4 5
+ "\\|" ; Class
+ "\\(\\[\\)" ; 6
+ "\\|" ; Grouping
+ "\\((\\(\\?\\)?\\)" ; 7 8
+ "\\|" ; |
+ "\\(|\\)" ; 9
+ )))
+ (goto-char (match-end 0))
+ (setq spaces t)
+ (cond ((match-beginning 1) ; Alphanum word + junk
+ (forward-char -1))
+ ((or (match-beginning 3) ; $ab[12]
+ (and (match-beginning 5) ; X* X+ X{2,3}
+ (eq (preceding-char) ?\{)))
+ (forward-char -1)
+ (forward-sexp 1))
+ ((match-beginning 6) ; []
+ (setq tmp (point))
+ (if (looking-at "\\^?\\]")
+ (goto-char (match-end 0)))
+ (or (re-search-forward "\\]\\([*+{?]\\)?" e t)
+ (progn
+ (goto-char (1- tmp))
+ (error "[]-group not terminated")))
+ (if (not (eq (preceding-char) ?\{)) nil
+ (forward-char -1)
+ (forward-sexp 1)))
+ ((match-beginning 7) ; ()
+ (goto-char (match-beginning 0))
+ (or (eq (current-column) c1)
+ (progn
+ (insert "\n")
+ (indent-to-column c1)))
+ (setq tmp (point))
+ (forward-sexp 1)
+ ;; (or (forward-sexp 1)
+ ;; (progn
+ ;; (goto-char tmp)
+ ;; (error "()-group not terminated")))
+ (set-marker m (1- (point)))
+ (set-marker m1 (point))
+ (cond
+ ((not (match-beginning 8))
+ (cperl-beautify-regexp-piece tmp m t))
+ ((eq (char-after (+ 2 tmp)) ?\{) ; Code
+ t)
+ ((eq (char-after (+ 2 tmp)) ?\() ; Conditional
+ (goto-char (+ 2 tmp))
+ (forward-sexp 1)
+ (cperl-beautify-regexp-piece (point) m t))
+ (t
+ (cperl-beautify-regexp-piece tmp m t)))
+ (goto-char m1)
+ (cond ((looking-at "[*+?]\\??")
+ (goto-char (match-end 0)))
+ ((eq (following-char) ?\{)
+ (forward-sexp 1)
+ (if (eq (following-char) ?\?)
+ (forward-char))))
+ (skip-chars-forward " \t")
+ (setq spaces nil)
+ (if (looking-at "[#\n]")
+ (progn
+ (or (eolp) (indent-for-comment))
+ (beginning-of-line 2))
+ (insert "\n"))
+ (end-of-line)
+ (setq inline nil))
+ ((match-beginning 9) ; |
+ (forward-char -1)
+ (setq tmp (point))
+ (beginning-of-line)
+ (if (re-search-forward "[^ \t]" tmp t)
+ (progn
+ (goto-char tmp)
+ (insert "\n"))
+ ;; first at line
+ (delete-region (point) tmp))
+ (indent-to-column c)
+ (forward-char 1)
+ (skip-chars-forward " \t")
+ (setq spaces nil)
+ (if (looking-at "[#\n]")
+ (beginning-of-line 2)
+ (insert "\n"))
+ (end-of-line)
+ (setq inline nil)))
+ (or (looking-at "[ \t\n]")
+ (not spaces)
+ (insert " "))
+ (skip-chars-forward " \t"))
+ (or (looking-at "[#\n]")
+ (error "unknown code \"%s\" in a regexp" (buffer-substring (point)
+ (1+ (point)))))
+ (and inline (end-of-line 2)))
+ ;; Special-case the last line of group
+ (if (and (>= (point) (marker-position e))
+ (/= (current-indentation) c))
+ (progn
+ (beginning-of-line)
+ (setq s (point))
+ (skip-chars-forward " \t")
+ (delete-region s (point))
+ (indent-to-column c)))
+ ))
+
+(defun cperl-make-regexp-x ()
+ (save-excursion
+ (or cperl-use-syntax-table-text-property
+ (error "I need to have regex marked!"))
+ ;; Find the start
+ (re-search-backward "\\s|") ; Assume it is scanned already.
+ ;;(forward-char 1)
+ (let ((b (point)) (e (make-marker)) have-x delim (c (current-column))
+ (sub-p (eq (preceding-char) ?s)) s)
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (setq delim (preceding-char))
+ (if (and sub-p (eq delim (char-after (- (point) 2))))
+ (error "Possible s/blah// - do not know how to deal with"))
+ (if sub-p (forward-sexp 1))
+ (if (looking-at "\\sw*x")
+ (setq have-x t)
+ (insert "x"))
+ ;; Protect fragile " ", "#"
+ (if have-x nil
+ (goto-char (1+ b))
+ (while (re-search-forward "\\(\\=\\|[^\\\\]\\)\\(\\\\\\\\\\)*[ \t\n#]" e t) ; Need to include (?#) too?
+ (forward-char -1)
+ (insert "\\")
+ (forward-char 1)))
+ b)))
+
+(defun cperl-beautify-regexp ()
+ "do it. (Experimental, may change semantics, recheck the result.)
+We suppose that the regexp is scanned already."
+ (interactive)
+ (cperl-make-regexp-x)
+ (re-search-backward "\\s|") ; Assume it is scanned already.
+ ;;(forward-char 1)
+ (let ((b (point)) (e (make-marker)))
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (cperl-beautify-regexp-piece b e nil)))
+
+(defun cperl-contract-level ()
+ "Find an enclosing group in regexp and contract it. (Experimental, may change semantics, recheck the result.) Unfinished.
+We suppose that the regexp is scanned already."
+ (interactive)
+ (let ((bb (cperl-make-regexp-x)) done)
+ (while (not done)
+ (or (eq (following-char) ?\()
+ (search-backward "(" (1+ bb) t)
+ (error "Cannot find `(' which starts a group"))
+ (setq done
+ (save-excursion
+ (skip-chars-backward "\\")
+ (looking-at "\\(\\\\\\\\\\)*(")))
+ (or done (forward-char -1)))
+ (let ((b (point)) (e (make-marker)) s c)
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (goto-char b)
+ (while (re-search-forward "\\(#\\)\\|\n" e t)
+ (cond
+ ((match-beginning 1) ; #-comment
+ (or c (setq c (current-indentation)))
+ (beginning-of-line 2) ; Skip
+ (setq s (point))
+ (skip-chars-forward " \t")
+ (delete-region s (point))
+ (indent-to-column c))
+ (t
+ (delete-char -1)
+ (just-one-space)))))))
+
+(defun cperl-beautify-level ()
+ "Find an enclosing group in regexp and beautify it. (Experimental, may change semantics, recheck the result.)
+We suppose that the regexp is scanned already."
+ (interactive)
+ (let ((bb (cperl-make-regexp-x)) done)
+ (while (not done)
+ (or (eq (following-char) ?\()
+ (search-backward "(" (1+ bb) t)
+ (error "Cannot find `(' which starts a group"))
+ (setq done
+ (save-excursion
+ (skip-chars-backward "\\")
+ (looking-at "\\(\\\\\\\\\\)*(")))
+ (or done (forward-char -1)))
+ (let ((b (point)) (e (make-marker)))
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (cperl-beautify-regexp-piece b e nil))))
+
+(if (fboundp 'run-with-idle-timer)
+ (progn
+ (defvar cperl-help-shown nil
+ "Non-nil means that the help was already shown now.")
+
+ (defvar cperl-lazy-installed nil
+ "Non-nil means that the lazy-help handlers are installed now.")
+
+ (defun cperl-lazy-install ()
+ (interactive)
+ (make-variable-buffer-local 'cperl-help-shown)
+ (if (and (cperl-val 'cperl-lazy-help-time)
+ (not cperl-lazy-installed))
+ (progn
+ (add-hook 'post-command-hook 'cperl-lazy-hook)
+ (run-with-idle-timer
+ (cperl-val 'cperl-lazy-help-time 1000000 5)
+ t
+ 'cperl-get-help-defer)
+ (setq cperl-lazy-installed t))))
+
+ (defun cperl-lazy-unstall ()
+ (interactive)
+ (remove-hook 'post-command-hook 'cperl-lazy-hook)
+ (cancel-function-timers 'cperl-get-help-defer)
+ (setq cperl-lazy-installed nil))
+
+ (defun cperl-lazy-hook ()
+ (setq cperl-help-shown nil))
+
+ (defun cperl-get-help-defer ()
+ (if (not (eq major-mode 'perl-mode)) nil
+ (let ((cperl-message-on-help-error nil) (cperl-help-from-timer t))
+ (cperl-get-help)
+ (setq cperl-help-shown t))))
+ (cperl-lazy-install)))
+
+(provide 'cperl-mode)
https://perl5.git.perl.org / perl5.git / blobdiff