├── .gitignore ├── CHANGELOG.md ├── Cask ├── .travis.yml ├── Makefile ├── test ├── test-helper.el └── perl6-mode-test.el ├── perl6-detect.el ├── perl6-indent.el ├── perl6-mode.el ├── README.md ├── perl6-font-lock.el └── COPYING /.gitignore: -------------------------------------------------------------------------------- 1 | *.elc 2 | /.cask/ 3 | dist/ 4 | perl6-mode-pkg.el 5 | -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | # Perl 6 Mode change log 2 | 3 | ## Unreleased 4 | ### Added 5 | - Basic syntax highlighting 6 | -------------------------------------------------------------------------------- /Cask: -------------------------------------------------------------------------------- 1 | (source gnu) 2 | (source melpa) 3 | 4 | (package-file "perl6-mode.el") 5 | 6 | (files "*.el") 7 | 8 | (development 9 | (depends-on "ert-runner")) 10 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: emacs-lisp 2 | env: 3 | - EMACS=emacs-snapshot 4 | before_install: 5 | # Nightly Emacs snapshot builds 6 | - sudo add-apt-repository -y ppa:ubuntu-elisp/ppa 7 | # Update and install the Emacs for our environment 8 | - sudo apt-get update -qq 9 | - sudo apt-get install -qq -yy ${EMACS}-nox 10 | # Install and bootstrap cask 11 | - curl -fsSkL https://raw.github.com/cask/cask/master/go | python 12 | - export PATH="${HOME}/.cask/bin:$PATH" 13 | install: 14 | - cask install 15 | script: 16 | - make compile test 17 | notifications: 18 | email: falase 19 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | CASK = cask 2 | EMACS = emacs 3 | EMACSFLAGS = --eval "(add-to-list 'load-path \".\")" 4 | TESTFLAGS = 5 | 6 | export EMACS 7 | 8 | PKGDIR := $(shell EMACS=$(EMACS) $(CASK) package-directory) 9 | 10 | SRCS := $(wildcard *.el) 11 | OBJS = $(SRCS:.el=.elc) 12 | 13 | .PHONY: compile test clean 14 | 15 | compile: $(OBJS) 16 | 17 | clean: 18 | rm -rf $(OBJS) dist perl6-mode-pkg.el 19 | 20 | test: $(PKGDIR) 21 | $(CASK) exec ert-runner $(TESTFLAGS) 22 | 23 | %.elc : %.el $(PKGDIR) 24 | $(CASK) exec $(EMACS) -Q --batch $(EMACSFLAGS) -f batch-byte-compile $< 25 | 26 | $(PKGDIR) : Cask 27 | $(CASK) install 28 | touch $(PKGDIR) 29 | 30 | dist: 31 | $(CASK) package 32 | -------------------------------------------------------------------------------- /test/test-helper.el: -------------------------------------------------------------------------------- 1 | ;;; test-helper.el --- Perl 6 Mode: Non-interactive unit-test setup -*- lexical-binding: t; -*- 2 | 3 | ;;; Commentary: 4 | 5 | ;; Non-interactive test suite setup for ERT Runner. 6 | 7 | ;;; Code: 8 | 9 | (message "Running tests on Emacs %s" emacs-version) 10 | 11 | (let* ((current-file (if load-in-progress load-file-name (buffer-file-name))) 12 | (source-directory (locate-dominating-file current-file "Cask")) 13 | ;; Do not load outdated byte code for tests 14 | (load-prefer-newer t)) 15 | ;; Load the file under test 16 | (add-to-list 'load-path source-directory) 17 | (load (expand-file-name "perl6-mode"))) 18 | 19 | ;; Local Variables: 20 | ;; indent-tabs-mode: nil 21 | ;; End: 22 | 23 | ;;; test-helper.el ends here 24 | -------------------------------------------------------------------------------- /perl6-detect.el: -------------------------------------------------------------------------------- 1 | ;;; perl6-detect.el --- Perl 6 detection -*- lexical-binding: t; -*- 2 | 3 | ;;; Commentary: 4 | 5 | ;; Yes, we are adding to `magic-mode-alist' here. Perl 6 uses the same 6 | ;; file extensions as Perl 5, and we want the mode to work out of the box. 7 | ;; So for those files we look at the first line of code to determine 8 | ;; whether to call `perl6-mode' instead of `perl-mode'. 9 | 10 | ;;; Code: 11 | 12 | ;;;###autoload 13 | (add-to-list 'interpreter-mode-alist '("perl6" . perl6-mode)) 14 | 15 | ;;;###autoload 16 | (add-to-list 'auto-mode-alist '("\\.p[lm]?6\\'" . perl6-mode)) 17 | 18 | ;;;###autoload 19 | (defconst perl6-magic-pattern 20 | (rx line-start 21 | (0+ space) 22 | (or (and "use" (1+ space) "v6") 23 | (and (opt (and (or "my" "our") (1+ space))) 24 | (or "module" "class" "role" "grammar" "enum" "slang" "subset"))))) 25 | 26 | ;;;###autoload 27 | (defun perl6-magic-matcher () 28 | "Check if the current buffer is a Perl 6 file. 29 | 30 | Only looks at a buffer if it has a file extension of .t, .pl, or .pm. 31 | 32 | Scans the buffer (to a maximum of 4096 chars) for the first non-comment, 33 | non-whitespace line. Returns t if that line looks like Perl 6 code, 34 | nil otherwise." 35 | (let ((case-fold-search nil)) 36 | (when (and (stringp buffer-file-name) 37 | (string-match "\\.\\(?:t\\|p[lm]\\)\\'" buffer-file-name)) 38 | (let ((keep-going t) 39 | (found-perl6 nil) 40 | (max-pos (min 4096 (point-max)))) 41 | (while (and (< (point) max-pos) 42 | keep-going) 43 | (if (looking-at "^ *\\(?:#.*\\)?$") 44 | (beginning-of-line 2) 45 | (setq keep-going nil 46 | found-perl6 (looking-at perl6-magic-pattern)))) 47 | found-perl6)))) 48 | 49 | ;;;###autoload 50 | (add-to-list 'magic-mode-alist '(perl6-magic-matcher . perl6-mode)) 51 | 52 | (provide 'perl6-detect) 53 | 54 | ;; Local Variables: 55 | ;; coding: utf-8 56 | ;; indent-tabs-mode: nil 57 | ;; End: 58 | 59 | ;;; perl6-detect.el ends here 60 | -------------------------------------------------------------------------------- /perl6-indent.el: -------------------------------------------------------------------------------- 1 | ;;; perl6-indent.el --- Indentation support Perl 6 -*- lexical-binding: t; -*- 2 | 3 | ;;; Commentary: 4 | 5 | ;; SMIE grammar and various (auto-)indenting functions and variables are 6 | ;; defined here. Currently it's mostly borrowed from css-mode. 7 | 8 | ;;; Code: 9 | 10 | (require 'smie) 11 | 12 | (defconst perl6-smie-grammar 13 | (smie-prec2->grammar 14 | (smie-precs->prec2 '((assoc ";") (assoc ",") (left ":"))))) 15 | 16 | (defcustom perl6-indent-offset 4 17 | "Basic size of one indentation step." 18 | :type 'integer 19 | :group 'perl6) 20 | 21 | (defun perl6-smie--not-interpolation-p () 22 | (save-excursion 23 | (forward-char -1) 24 | (or (zerop (skip-chars-backward "-[:alnum:]")) 25 | (not (looking-back "#{\\$" (- (point) 3)))))) 26 | 27 | (defun perl6-smie--forward-token () 28 | (cond 29 | ((and (eq (char-before) ?\}) 30 | (perl6-smie--not-interpolation-p) 31 | ;; FIXME: If the next char is not whitespace, what should we do? 32 | (or (memq (char-after) '(?\s ?\t ?\n)) 33 | (looking-at comment-start-skip))) 34 | (if (memq (char-after) '(?\s ?\t ?\n)) 35 | (forward-char 1) (forward-comment 1)) 36 | ";") 37 | ((progn (forward-comment (point-max)) 38 | (looking-at "[;,:]")) 39 | (forward-char 1) (match-string 0)) 40 | (t (smie-default-forward-token)))) 41 | 42 | (defun perl6-smie--backward-token () 43 | (let ((pos (point))) 44 | (forward-comment (- (point))) 45 | (cond 46 | ;; FIXME: If the next char is not whitespace, what should we do? 47 | ((and (eq (char-before) ?\}) (perl6-smie--not-interpolation-p) 48 | (> pos (point))) ";") 49 | ((memq (char-before) '(?\; ?\, ?\:)) 50 | (forward-char -1) (string (char-after))) 51 | (t (smie-default-backward-token))))) 52 | 53 | (defun perl6-smie-rules (kind token) 54 | (pcase (cons kind token) 55 | (`(:elem . basic) perl6-indent-offset) 56 | (`(:elem . arg) 0) 57 | (`(:list-intro . ,(or `";" `"")) t) ;"" stands for BOB (bug#15467). 58 | (`(:before . "{") 59 | (when (smie-rule-hanging-p) 60 | (smie-backward-sexp ";") 61 | (smie-indent-virtual))) 62 | (`(:before . ,(or "{" "(")) 63 | (if (smie-rule-hanging-p) (smie-rule-parent 0))))) 64 | 65 | (provide 'perl6-indent) 66 | 67 | ;; Local Variables: 68 | ;; coding: utf-8 69 | ;; indent-tabs-mode: nil 70 | ;; End: 71 | 72 | ;;; perl6-indent.el ends here 73 | -------------------------------------------------------------------------------- /perl6-mode.el: -------------------------------------------------------------------------------- 1 | ;;; perl6-mode.el --- Major mode for editing Perl 6 code -*- lexical-binding: t; -*- 2 | 3 | ;; Copyright (C) 2015 Hinrik Örn Sigurðsson 4 | 5 | ;; Author: Hinrik Örn Sigurðsson 6 | ;; URL: https://github.com/hinrik/perl6-mode 7 | ;; Keywords: languages 8 | ;; Version: 0.1-git 9 | ;; Package-Requires: ((emacs "24.4") (pkg-info "0.1")) 10 | 11 | ;; This file is not part of GNU Emacs. 12 | 13 | ;; This program is free software: you can redistribute it and/or modify 14 | ;; it under the terms of the GNU General Public License as published by 15 | ;; the Free Software Foundation, either version 3 of the License, or 16 | ;; (at your option) any later version. 17 | 18 | ;; This program is distributed in the hope that it will be useful, 19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | ;; GNU General Public License for more details. 22 | 23 | ;; You should have received a copy of the GNU General Public License 24 | ;; along with this program. If not, see . 25 | 26 | ;;; Commentary: 27 | 28 | ;; GNU Emacs 24 major mode for editing Perl 6 code. 29 | 30 | ;; Currently only provides very basic syntax highlighting. 31 | 32 | ;;; Code: 33 | 34 | (declare-function pkg-info-version-info "pkg-info" (library)) 35 | 36 | (defgroup perl6 nil 37 | "Major mode for editing Perl 6 code." 38 | :prefix "perl6-" 39 | :group 'language) 40 | 41 | (require 'perl6-detect) 42 | (require 'perl6-font-lock) 43 | (require 'perl6-indent) 44 | 45 | ;;;###autoload 46 | (define-derived-mode perl6-mode prog-mode "Perl6" 47 | "Major mode for editing Perl 6 code." 48 | ;; Syntaxification and font locking 49 | (setq-local syntax-propertize-function #'perl6-syntax-propertize) 50 | (add-hook 'syntax-propertize-extend-region-functions #'syntax-propertize-multiline nil 'local) 51 | (setq-local font-lock-syntactic-face-function #'perl6-font-lock-syntactic-face) 52 | (setq-local font-lock-defaults '(perl6-font-lock-keywords nil nil)) 53 | ;; Comments 54 | (setq-local comment-start "#") 55 | (setq-local comment-start-skip "#+ *") 56 | (setq-local comment-use-syntax t) 57 | (setq-local comment-end "") 58 | ;; Indentation 59 | (smie-setup perl6-smie-grammar #'perl6-smie-rules 60 | :forward-token #'perl6-smie--forward-token 61 | :backward-token #'perl6-smie--backward-token)) 62 | 63 | (provide 'perl6-mode) 64 | 65 | ;; Local Variables: 66 | ;; coding: utf-8 67 | ;; indent-tabs-mode: nil 68 | ;; End: 69 | 70 | ;;; perl6-mode.el ends here 71 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # P̶e̶r̶l̶ ̶6̶ ̶M̶o̶d̶e̶ 2 | 3 | This is deprecated, **use [Raku Mode](https://github.com/Raku/raku-mode)** instead. 4 | 5 | [![License GPL 3][badge-license]][copying] 6 | [![MELPA Status](http://melpa.org/packages/perl6-mode-badge.svg)](http://melpa.org/#/perl6-mode) 7 | [![travis][badge-travis]][travis] 8 | 9 | Perl 6 mode lets you edit Perl 6 code with [GNU Emacs][] 24. 10 | 11 | This mode needs GNU Emacs 24.4. 12 | 13 | ## Features 14 | 15 | * Basic syntax highlighting 16 | * Basic indentation 17 | 18 | #### Planned 19 | 20 | * Complete syntax highlighting 21 | * Better indentation support 22 | * Help system 23 | * REPL interaction 24 | * imenu support 25 | * ETags support 26 | * `find-file-at-point` for module names 27 | * Electricity (`electric-pair-mode` needs some context-sensitive help) 28 | 29 | #### Not planned 30 | 31 | * Syntax checking (use [flycheck-perl6][]) 32 | 33 | ## Installation 34 | 35 | With [`use-package`][use-package] in your init file: 36 | 37 | ```el 38 | (use-package perl6-mode 39 | :ensure t 40 | :defer t) 41 | ``` 42 | 43 | Or in your [`Cask`][cask] file: 44 | 45 | ```el 46 | (source melpa) 47 | 48 | (depends-on "perl6-mode") 49 | ``` 50 | Or manually from [MELPA][] with M-x package-refresh-contents 51 | and M-x package-install RET perl6-mode. 52 | 53 | ## Usage 54 | 55 | Just visit Perl 6 files. 56 | 57 | The major mode will be autoloaded whenever a Perl 6 file is visited. 58 | This includes any file with `perl6` in the shebang, as well as any file 59 | with a `.p6`, `.pm6`, or `.pl6` extension. It also applies to any `.pm`, 60 | `.pl`, and `.t` files whose first line of code looks like Perl 6. 61 | 62 | Use M-x customize-group RET perl6 to customize Perl 6 Mode. 63 | 64 | ## Support 65 | 66 | You can ask a question in the [issue tracker][], or email me at 67 | hinrik.sig@gmail.com. 68 | 69 | ## Contribute 70 | 71 | Pull requests are welcome. 72 | 73 | You might want to install [`cask`][cask] so you can run the test suite 74 | (with `make test`). 75 | 76 | ## License 77 | 78 | Perl 6 Mode is free software: you can redistribute it and/or modify it 79 | under the terms of the GNU General Public License as published by the 80 | Free Software Foundation, either version 3 of the License, or (at your 81 | option) any later version. 82 | 83 | Perl 6 Mode is distributed in the hope that it will be useful, but 84 | WITHOUT ANY WARRANTY; without even the implied warranty of 85 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General 86 | Public License for more details. 87 | 88 | See [`COPYING`][copying] for the complete license. 89 | 90 | [badge-license]: https://img.shields.io/badge/license-GPL_3-green.svg 91 | [COPYING]: https://github.com/hinrik/perl6-mode/blob/master/COPYING 92 | [travis]: https://travis-ci.org/hinrik/perl6-mode 93 | [badge-travis]: https://travis-ci.org/hinrik/perl6-mode.svg?branch=master 94 | [GNU Emacs]: https://www.gnu.org/software/emacs/ 95 | [flycheck-perl6]: https://github.com/hinrik/flycheck-perl6 96 | [MELPA]: http://melpa.milkbox.net/ 97 | [use-package]: https://github.com/jwiegley/use-package 98 | [Cask]: http://cask.github.io/ 99 | [Issue tracker]: https://github.com/hinrik/perl6-mode/issues 100 | -------------------------------------------------------------------------------- /test/perl6-mode-test.el: -------------------------------------------------------------------------------- 1 | ;;; perl6-mode-test.el --- Perl 6 Mode: Unit test suite -*- lexical-binding: t; -*- 2 | 3 | ;;; Commentary: 4 | 5 | ;; The unit test suite of Perl 6 Mode. 6 | 7 | ;;; Code: 8 | 9 | (require 'perl6-mode) 10 | (require 'ert) 11 | 12 | 13 | ;;;; Utilities 14 | 15 | (defmacro perl6-test-with-temp-buffer (content &rest body) 16 | "In the temporary buffer CONTENT, evaluate BODY." 17 | (declare (debug t) 18 | (indent 1)) 19 | `(with-temp-buffer 20 | (insert ,content) 21 | (perl6-mode) 22 | (font-lock-fontify-buffer) 23 | (goto-char (point-min)) 24 | ,@body)) 25 | 26 | (defun perl6-test-face-at (pos &optional content) 27 | "Get the face at POS in CONTENT. 28 | 29 | If CONTENT is not given, return the face at POS in the current 30 | buffer." 31 | (if content 32 | (perl6-test-with-temp-buffer content 33 | (get-text-property pos 'face)) 34 | (get-text-property pos 'face))) 35 | 36 | (defconst perl6-test-syntax-classes 37 | [whitespace punctuation word symbol open-paren close-paren expression-prefix 38 | string-quote paired-delim escape character-quote comment-start 39 | comment-end inherit generic-comment generic-string] 40 | "Readable symbols for syntax classes. 41 | 42 | Each symbol in this vector corresponding to the syntax code of 43 | its index.") 44 | 45 | (defun perl6-test-syntax-at (pos) 46 | "Get the syntax at POS. 47 | 48 | Get the syntax class symbol at POS, or nil if there is no syntax a 49 | POS." 50 | (let ((code (syntax-class (syntax-after pos)))) 51 | (aref perl6-test-syntax-classes code))) 52 | 53 | 54 | ;;;; Font locking 55 | (ert-deftest perl6-syntax-propertize/colons-identifier () 56 | :tags '(syntax-table syntax-properties) 57 | (perl6-test-with-temp-buffer "class Foo::Bar" 58 | (should (eq (perl6-test-syntax-at 10) 'symbol)) 59 | (should (eq (perl6-test-syntax-at 11) 'symbol)))) 60 | 61 | (ert-deftest perl6-syntax-propertize/angles () 62 | :tags '(syntax-table syntax-properties) 63 | (perl6-test-with-temp-buffer "my @foo = ; for @foo <-> $bar {}" 64 | (should (eq (perl6-test-syntax-at 11) 'generic-string)) 65 | (should (eq (perl6-test-syntax-at 15) 'generic-string)) 66 | (should (eq (perl6-test-syntax-at 27) 'punctuation)) 67 | (should (eq (perl6-test-syntax-at 29) 'punctuation)))) 68 | 69 | (ert-deftest perl6-syntax-propertize/dq-words () 70 | :tags '(syntax-table syntax-properties) 71 | (perl6-test-with-temp-buffer "foo «bar1 bar2» bla <> quux" 72 | (should (eq (perl6-test-syntax-at 1) 'word)) 73 | (should (eq (perl6-test-syntax-at 5) 'generic-string)) 74 | (should (eq (perl6-test-syntax-at 15) 'generic-string)) 75 | (should (eq (perl6-test-syntax-at 21) 'generic-string)) 76 | (should (eq (perl6-test-syntax-at 22) 'punctuation)) 77 | (should (eq (perl6-test-syntax-at 32) 'punctuation)) 78 | (should (eq (perl6-test-syntax-at 33) 'generic-string)))) 79 | 80 | (ert-deftest perl6-mode-syntax-table/fontify-dq-string () 81 | :tags '(fontification syntax-table) 82 | (should (eq (perl6-test-face-at 9 "$foo = \"bar\"") 'perl6-string))) 83 | 84 | (ert-deftest perl6-mode-syntax-table/fontify-set-operator () 85 | :tags '(fontification syntax-table) 86 | (should (eq (perl6-test-face-at 6 "$mh (<+) $m") 'perl6-operator))) 87 | 88 | (ert-deftest perl6-mode-syntax-table/fontify-sq-string () 89 | :tags '(fontification syntax-table) 90 | (should (eq (perl6-test-face-at 9 "$foo = 'bar'") 'perl6-string))) 91 | 92 | (ert-deftest perl6-mode-syntax-table/fontify-line-comment () 93 | :tags '(fontification syntax-table) 94 | (perl6-test-with-temp-buffer "# class 95 | bar #` baz" 96 | (should (eq (perl6-test-face-at 3) 'perl6-comment)) 97 | (should (eq (perl6-test-face-at 7) 'perl6-comment)) 98 | (should (eq (perl6-test-face-at 8) 'perl6-comment)) 99 | (should (eq (perl6-test-face-at 9) 'perl6-identifier)) 100 | (should (eq (perl6-test-face-at 16) 'perl6-comment)))) 101 | 102 | (ert-deftest perl6-font-lock-keywords/phaser () 103 | :tags '(fontification font-lock-keywords) 104 | (perl6-test-with-temp-buffer "BEGIN {" 105 | (should (eq (perl6-test-face-at 1) 'perl6-phaser)))) 106 | 107 | (ert-deftest perl5-font-lock-keywords/variable () 108 | :tags '(fontification syntax-table) 109 | (perl6-test-with-temp-buffer "$::foo @!bar" 110 | (should (eq (perl6-test-face-at 3) 'perl6-var-package)) 111 | (should (eq (perl6-test-face-at 4) 'perl6-var-name)) 112 | (should (eq (perl6-test-face-at 8) 'perl6-sigil)) 113 | (should (eq (perl6-test-face-at 9) 'perl6-twigil)) 114 | (should (eq (perl6-test-face-at 10) 'perl6-var-name)))) 115 | 116 | (provide 'perl6-mode-test) 117 | 118 | ;; Local Variables: 119 | ;; indent-tabs-mode: nil 120 | ;; End: 121 | 122 | ;;; perl6-mode-test.el ends here 123 | -------------------------------------------------------------------------------- /perl6-font-lock.el: -------------------------------------------------------------------------------- 1 | ;;; perl6-font-lock.el --- Font locking and syntax propertizing for Perl 6 -*- lexical-binding: t; -*- 2 | 3 | ;;; Commentary: 4 | 5 | ;; All syntaxification and font locking takes place here. 6 | 7 | ;;; Code: 8 | 9 | (defface perl6-identifier '((t :inherit default)) 10 | "Face for identifiers in Perl 6." 11 | :group 'perl6-faces) 12 | 13 | (defface perl6-number '((t :inherit font-lock-constant-face)) 14 | "Face for number literals in Perl 6." 15 | :group 'perl6-faces) 16 | 17 | (defface perl6-number-addition '((t :inherit font-lock-type-face)) 18 | "Face for additional characters attached to numbers." 19 | :group 'perl6-faces) 20 | 21 | (defface perl6-string '((t :inherit font-lock-string-face)) 22 | "Face for strings in Perl 6." 23 | :group 'perl6-faces) 24 | 25 | (defface perl6-comment '((t :inherit font-lock-comment-face)) 26 | "Face for comments in Perl 6." 27 | :group 'perl6-faces) 28 | 29 | (defface perl6-operator '((t :inherit font-lock-builtin-face)) 30 | "Face for operators in Perl 6." 31 | :group 'perl6-faces) 32 | 33 | (defface perl6-type '((t :inherit font-lock-type-face)) 34 | "Face for types in Perl 6." 35 | :group 'perl6-faces) 36 | 37 | (defface perl6-phaser '((t :inherit font-lock-preprocessor-face)) 38 | "Face for phasers in Perl 6." 39 | :group 'perl6-faces) 40 | 41 | (defface perl6-exception '((t :inherit font-lock-keyword-face)) 42 | "Face for exception keywords in Perl 6." 43 | :group 'perl6-faces) 44 | 45 | (defface perl6-declare '((t :inherit font-lock-keyword-face)) 46 | "Face for declaration keywords in Perl 6." 47 | :group 'perl6-faces) 48 | 49 | (defface perl6-include '((t :inherit font-lock-keyword-face)) 50 | "Face for include keywords in Perl 6." 51 | :group 'perl6-faces) 52 | 53 | (defface perl6-conditional '((t :inherit font-lock-keyword-face)) 54 | "Face for conditional keywords in Perl 6." 55 | :group 'perl6-faces) 56 | 57 | (defface perl6-scope '((t :inherit font-lock-keyword-face)) 58 | "Face for scope keywords in Perl 6." 59 | :group 'perl6-faces) 60 | 61 | (defface perl6-loop '((t :inherit font-lock-keyword-face)) 62 | "Face for loop keywords in Perl 6." 63 | :group 'perl6-faces) 64 | 65 | (defface perl6-flow-control '((t :inherit font-lock-keyword-face)) 66 | "Face for flow control keywords in Perl 6." 67 | :group 'perl6-faces) 68 | 69 | (defface perl6-pragma '((t :inherit font-lock-keyword-face)) 70 | "Face for pragmas in Perl 6." 71 | :group 'perl6-faces) 72 | 73 | (defface perl6-type-constraint '((t :inherit font-lock-preprocessor-face)) 74 | "Face for type constraint keywords in Perl 6." 75 | :group 'perl6-faces) 76 | 77 | (defface perl6-type-property '((t :inherit font-lock-builtin-face)) 78 | "Face for type constraint properties in Perl 6." 79 | :group 'perl6-faces) 80 | 81 | (defface perl6-sigil '((t :inherit font-lock-variable-name-face)) 82 | "Face for variable sigils in Perl 6." 83 | :group 'perl6-faces) 84 | 85 | (defface perl6-twigil '((t :inherit font-lock-type-face)) 86 | "Face for variable twigils in Perl 6." 87 | :group 'perl6-faces) 88 | 89 | (defface perl6-var-package '((t :inherit font-lock-constant-face)) 90 | "Face for variable names in Perl 6." 91 | :group 'perl6-faces) 92 | 93 | (defface perl6-var-name '((t :inherit font-lock-variable-name-face)) 94 | "Face for variable names in Perl 6." 95 | :group 'perl6-faces) 96 | 97 | (defface perl6-version '((t :inherit font-lock-constant-face)) 98 | "Face for version literals in Perl 6." 99 | :group 'perl6-faces) 100 | 101 | (defface perl6-label '((t :inherit font-lock-constant-face)) 102 | "Face for block labels in Perl 6." 103 | :group 'perl6-faces) 104 | 105 | (eval-when-compile 106 | (require 'rx) 107 | 108 | (defun perl6-rx-symbol (form) 109 | "Translate FORM into a regular expression." 110 | (let ((body (cdr form))) 111 | (rx-to-string `(and symbol-start ,@body symbol-end) 'no-group))) 112 | 113 | (let ((rx-identifier (rx-to-string 114 | `(and (regex "[_[:alpha:]]") 115 | (0+ (regex "[_[:alnum:]]")) 116 | (0+ (any "-'") (regex "[_[:alpha:]]") (0+ (regex "[_[:alnum:]]")))))) 117 | (rx-metaoperator (rx-to-string 118 | `(or (and (regex "[^[:digit:]@%$]") 119 | (0+ (regex "[^\[\{\('\"[:space:]]"))) 120 | (and (any "@%$") 121 | (regex "[^.?^=_[:alpha:]]\[\{\('\"[:space:]]") 122 | (0+ (regex "[^\[\{\('\"[:space:]]"))))))) 123 | (defconst perl6-rx-constituents 124 | `((symbol perl6-rx-symbol 0 nil) 125 | (identifier . ,rx-identifier) 126 | (variable 127 | . ,(rx-to-string 128 | `(and (group (1+ (char "@$%&"))) 129 | (group (opt (char ".^*?=!~:"))) 130 | (group (opt (or (and "::" (0+ (regex ,rx-identifier) "::")) 131 | (1+ (regex ,rx-identifier) "::")))) 132 | (group (or (or digit (char "/!¢")) 133 | (and (regex ,rx-identifier) symbol-end)))))) 134 | (reduce-operator 135 | . ,(rx-to-string 136 | `(and (0+ (any "RSXZ\[")) 137 | (opt (any "RSXZ&")) 138 | (1+ "\[") 139 | (opt "\(") 140 | (regex ,rx-metaoperator) 141 | (opt "\)") 142 | (1+ "\]")))) 143 | (hyper-operator 144 | . ,(rx-to-string 145 | `(or (and "«" (regex ,rx-metaoperator) (char "«»")) 146 | (and "»" (regex ,rx-metaoperator) (opt (char "«»"))) 147 | (and "<<" (regex ,rx-metaoperator) (or "<<" ">>")) 148 | (and ">>" (regex ,rx-metaoperator) (opt (or "<<" ">>"))) 149 | (and (regex "[^[:digit:]\[\{\('\",:[:space:]]") 150 | (0+ (regex "[^\[\{\('\",:[:space:]]")) 151 | (or "«" "<<"))))) 152 | (pre-declare 153 | . ,(rx (or "multi" "proto" "only"))) 154 | (declare 155 | . ,(rx (or "macro" "sub" "submethod" "method" "category" 156 | "module" "class" "role" "package" "enum" "grammar" 157 | "slang" "subset"))) 158 | (rule . ,(rx (or "regex" "rule" "token"))) 159 | (include . ,(rx (or "use" "require unit"))) 160 | (conditional . ,(rx (or "if" "else" "elsif" "unless" "with" 161 | "orwith" "without"))) 162 | (scope . ,(rx (or "let" "my" "our" "state" "temp" "has" "constant"))) 163 | (loop . ,(rx (or "for" "loop" "repeat" "while" "until" "gather" "given"))) 164 | (flow-control 165 | . ,(rx (or "take" "do" "when" "next" "last" "redo" "return" "contend" 166 | "maybe" "defer" "start" "default" "exit" "make" "continue" 167 | "break" "goto" "leave" "async" "lift"))) 168 | (phaser 169 | . ,(rx (or "BEGIN" "CHECK" "INIT" "START" "FIRST" "ENTER" "LEAVE" "KEEP" 170 | "UNDO" "NEXT" "LAST" "PRE" "POST" "END" "CATCH" "CONTROL" 171 | "TEMP"))) 172 | (exception . ,(rx (or "die" "fail" "try" "warn"))) 173 | (pragma . ,(rx (or "oo" "fatal"))) 174 | (type-constraint 175 | . ,(rx (or "does" "as" "but" "trusts" "of" "returns" "handles" "where" 176 | "augment" "supersede"))) 177 | (type-property 178 | . ,(rx (or "signature" "context" "also" "shape" "prec" "irs" "ofs" "ors" 179 | "export" "deep" "binary" "unary" "reparsed" "rw" "parsed" 180 | "cached" "readonly" "defequiv" "will" "ref" "copy" "inline" 181 | "tighter" "looser" "equiv" "assoc" "required"))) 182 | (operator-word 183 | . ,(rx (or "div" "xx" "x" "mod" "also" "leg" "cmp" "before" "after" "eq" 184 | "ne" "le" "lt" "not" "gt" "eqv" "ff" "fff" "and" "andthen" 185 | "or" "xor" "orelse" "extra" "lcm" "gcd" "o"))) 186 | (operator-char . ,(rx (any "-:+/*~?|=^!%&,<>».;\\∈∉∋∌∩∪≼≽⊂⊃⊄⊅⊆⊇⊈⊉⊍⊎⊖∅∘"))) 187 | (set-operator 188 | . ,(rx (opt "R") 189 | "\(" 190 | (or (char "-^.+|&") 191 | (and (char "<>") (opt (char "=+"))) 192 | "cont" 193 | "elem") 194 | "\)")) 195 | (rsxz-operator 196 | . ,(rx 197 | symbol-start 198 | (any "RSXZ") 199 | (or (or (and (or "div" "mod" "gcd" "lcm" "xx" "x" "does" "but" "cmp" 200 | "leg" "eq" "ne" "gt" "ge" "lt" "le" "before" "after" 201 | "eqv" "min" "max" "not" "so" "andthen" "and" "or" 202 | "orelse") 203 | symbol-end) 204 | (any ".,") 205 | (1+ (regex "[^:\[.,[:space:][:alnum:]]"))) 206 | symbol-end))) 207 | (low-type 208 | . ,(rx (or "int" "int1" "int2" "int4" "int8" "int16" "int32" "int64" 209 | "rat" "rat1" "rat2" "rat4" "rat8" "rat16" "rat32" "rat64" 210 | "buf" "buf1" "buf2" "buf4" "buf8" "buf16" "buf32" "buf64" 211 | "uint" "uint1" "uint2" "uint4" "uint8" "uint16" "uint32" 212 | "uint64" "utf8" "utf16" "utf32" "bit" "bool" "bag" "set" 213 | "mix" "num" "complex"))) 214 | (high-type 215 | . ,(rx (or "Object" "Any" "Junction" "Whatever" "Capture" "Match" 216 | "Signature" "Proxy" "Matcher" "Package" "Module" "Class" 217 | "Grammar" "Scalar" "Array" "Hash" "KeyHash" "KeySet" "KeyBag" 218 | "Pair" "List" "Seq" "Range" "Set" "Bag" "Mapping" "Void" 219 | "Undef" "Failure" "Exception" "Code" "Block" "Routine" "Sub" 220 | "Macro" "Method" "Submethod" "Regex" "Str" "Blob" "Char" 221 | "Byte" "Parcel" "Codepoint" "Grapheme" "StrPos" "StrLen" 222 | "Version" "Num" "Complex" "Bit" "True" "False" "Order" "Same" 223 | "Less" "More" "Increasing" "Decreasing" "Ordered" "Callable" 224 | "AnyChar" "Positional" "Associative" "Ordering" "KeyExtractor" 225 | "Comparator" "OrderingPair" "IO" "KitchenSink" "Role" "Int" "Bool" 226 | "Rat" "Buf" "UInt" "Abstraction" "Numeric" "Real" "Nil" "Mu"))) 227 | (version . ,(rx "v" (1+ digit) (0+ "." (or "*" (1+ digit))) (opt "+"))) 228 | (number 229 | . ,(rx 230 | (group-n 1 231 | (or (and (1+ digit) 232 | (0+ (and "_" (1+ digit))) 233 | (opt "." 234 | (1+ digit) 235 | (0+ (and "_" (1+ digit))))) 236 | (and "." 237 | (1+ digit) 238 | (0+ (and "_" (1+ digit)))))) 239 | (opt (group-n 2 (any "Ee")) 240 | (group-n 3 (opt "-") (1+ digit) (0+ "_" (1+ digit)))) 241 | (opt (group-n 4 "i")))) 242 | (base-number 243 | . ,(rx symbol-start 244 | (group-n 1 "0") 245 | (or (and 246 | (group-n 2 "o") 247 | (group-n 3 (any "0-7") (0+ (any "0-7_")))) 248 | (and 249 | (group-n 2 "b") 250 | (group-n 3 (any "0-1") (0+ (any "0-1_")))) 251 | (and 252 | (group-n 2 "x") 253 | (group-n 3 (regex "[[:xdigit:]]") (0+ (regex "[[:xdigit:]_]")))) 254 | (and 255 | (group-n 2 "d") 256 | (group-n 3 (regex "[[:digit:]]") (0+ (regex "[[:digit:]_]")))))))))) 257 | 258 | (defmacro perl6-rx (&rest sexps) 259 | "Specialized `rx' variant for perl6-mode." 260 | (let ((rx-constituents (append perl6-rx-constituents rx-constituents))) 261 | (cond ((null sexps) 262 | (error "No regexp")) 263 | ((cdr sexps) 264 | (rx-to-string `(and ,@sexps) t)) 265 | (t 266 | (rx-to-string (car sexps) t)))))) 267 | 268 | (defconst perl6-mode-syntax-table 269 | (let ((table (make-syntax-table))) 270 | ;; single-quoted strings 271 | (modify-syntax-entry ?' "\"" table) 272 | ;; these are all punctuation chars, not word or symbol chars 273 | (modify-syntax-entry ?$ "." table) 274 | (modify-syntax-entry ?% "." table) 275 | (modify-syntax-entry ?& "." table) 276 | (modify-syntax-entry ?* "." table) 277 | (modify-syntax-entry ?+ "." table) 278 | (modify-syntax-entry ?- "." table) 279 | (modify-syntax-entry ?/ "." table) 280 | (modify-syntax-entry ?< "." table) 281 | (modify-syntax-entry ?= "." table) 282 | (modify-syntax-entry ?> "." table) 283 | (modify-syntax-entry ?| "." table) 284 | table) 285 | "The top level syntax table for Perl 6.") 286 | 287 | (defconst perl6-bracket-syntax-table 288 | (let ((table (make-syntax-table perl6-mode-syntax-table))) 289 | (modify-syntax-entry ?< "(>" table) 290 | (modify-syntax-entry ?> ")<" table) 291 | (modify-syntax-entry ?« "(»" table) 292 | (modify-syntax-entry ?» ")«" table) 293 | (modify-syntax-entry ?‘ "(’" table) 294 | (modify-syntax-entry ?’ ")‘" table) 295 | (modify-syntax-entry ?“ "(”" table) 296 | (modify-syntax-entry ?” ")“" table) 297 | table) 298 | "Syntax table for bracketing constructs.") 299 | 300 | (defun perl6-syntax-context (&optional state) 301 | "Return the syntactic context at the parse state of STATE. 302 | 303 | If STATE is not provided, the return value of `syntax-ppss' will be used." 304 | (let* ((state (or state (syntax-ppss))) 305 | (in-string (nth 3 state)) 306 | (in-comment (nth 4 state))) 307 | (cond 308 | (in-string 'string) 309 | (in-comment 'comment) 310 | (t nil)))) 311 | 312 | (defun perl6-forward-brackets (open close length) 313 | "Move point past the end of a bracketed structure. 314 | 315 | Skips over any nested balanced brackets. 316 | 317 | OPEN and CLOSE are the bracketing characters (e.g. ?< and ?>). 318 | LENGTH is the length of the brackets (e.g. 2 for a <>)." 319 | (let ((pattern (rx-to-string `(and (group (0+ "\\")) 320 | (or (group (= ,length ,open)) 321 | (group (= ,length ,close)))))) 322 | (found-closing nil) 323 | (depth 1)) 324 | (while (and (not found-closing) 325 | (< (point) (point-max))) 326 | (re-search-forward pattern (point-max) 'noerror) 327 | (when (or (not (match-string 1)) 328 | (= 0 (% (length (match-string 1)) 2))) 329 | (cond ((match-string 2) 330 | (if (looking-at (rx-to-string open)) 331 | (re-search-forward (rx-to-string `(1+ ,open))) 332 | (setq depth (1+ depth)))) 333 | ((match-string 3) 334 | (setq depth (1- depth)) 335 | (when (eq depth 0) 336 | (setq found-closing t)))))))) 337 | 338 | (defun perl6-syntax-propertize-delimiters (syntax &optional offset) 339 | "Add syntax properties to a delimited region. 340 | 341 | SYNTAX is the type of syntax to apply to the delimiters \(such as \"!\"\). 342 | 343 | OFFSET can be used to shift the starting position (relative to point) of the 344 | opening delimiter." 345 | (with-syntax-table perl6-bracket-syntax-table 346 | (when (and (following-char) 347 | (eq ?\( (char-syntax (following-char)))) 348 | (let* ((delim-beg (+ (point) (or offset 0))) 349 | (open-delim (following-char)) 350 | (close-delim (matching-paren open-delim))) 351 | (put-text-property delim-beg (1+ delim-beg) 352 | 'syntax-table (string-to-syntax syntax)) 353 | (re-search-forward (rx-to-string `(1+ ,open-delim))) 354 | (let ((delim-length (length (match-string 0)))) 355 | (perl6-forward-brackets open-delim close-delim delim-length) 356 | (let ((delim-end (point))) 357 | (put-text-property delim-beg delim-end 'syntax-multiline t) 358 | (put-text-property (- delim-end 1) delim-end 359 | 'syntax-table (string-to-syntax syntax))))) 360 | t))) 361 | 362 | (defun perl6-syntax-propertize-comment (limit) 363 | "Add syntax properties to comments." 364 | (unless (save-excursion 365 | (and (re-search-forward "\\=[`|=]" (1+ (point)) t) 366 | ;; embedded/multiline comment 367 | (perl6-syntax-propertize-delimiters "!" -2))) 368 | ;; single-line comment 369 | (put-text-property (1- (point)) (point) 370 | 'syntax-table (string-to-syntax "<")) 371 | (if (re-search-forward "\n" limit 'noerror) 372 | (put-text-property (1- (point)) (point) 373 | 'syntax-table (string-to-syntax ">"))))) 374 | 375 | (defun perl6-syntax-propertize-angles (open-angles) 376 | "Add syntax properties to angle-bracketed quotes (e.g. and «bar»). 377 | 378 | OPEN-ANGLES is the opening delimiter (e.g. \"«\" or \"<<\")." 379 | (with-syntax-table perl6-bracket-syntax-table 380 | (let* ((angle-length (length open-angles)) 381 | (open-angle (string-to-char open-angles)) 382 | (close-angle (matching-paren open-angle)) 383 | (quote-beg (- (point) angle-length)) 384 | (line-beg (point-at-bol))) 385 | (when 386 | (and (not (or (looking-at (rx-to-string `(or "=" (= 2 (char "-="))))) 387 | (looking-at (rx-to-string `(and (** 1 2 "-") ,close-angle))) 388 | (looking-back (rx-to-string `(and (char "+~=!") ,open-angle)) 2))) 389 | (or (not (looking-at "[\s\n]")) 390 | (not (looking-back (rx-to-string `(and (char "\s\n") ,open-angle)) 2)) 391 | (looking-at (rx-to-string `(and ,open-angle (1+ (char "\s\n")) ,close-angle))) 392 | (looking-back (rx-to-string `(and "=" (1+ space) ,open-angle)) line-beg) 393 | (looking-back (rx-to-string `(and "\(" (0+ space) ,open-angle)) line-beg) 394 | (looking-at "\s*$") 395 | (looking-back (rx-to-string `(and line-start (0+ space) ,open-angle)) line-beg) 396 | (looking-back (rx-to-string `(and symbol-start (or "enum" "for" "any" "all" "none") 397 | (0+ space) (opt "\)") (0+ space) ,open-angle)) line-beg))) 398 | (put-text-property quote-beg (1+ quote-beg) 399 | 'syntax-table (string-to-syntax "|")) 400 | (perl6-forward-brackets open-angle close-angle angle-length) 401 | (let ((quote-end (- (point) 1))) 402 | (put-text-property quote-beg quote-end 'syntax-multiline t) 403 | (put-text-property quote-end (1+ quote-end) 404 | 'syntax-table (string-to-syntax "|"))))))) 405 | 406 | (defun perl6-syntax-propertize-backslash () 407 | (when (eq (perl6-syntax-context) nil) 408 | (put-text-property (match-beginning 0) (match-end 0) 409 | 'syntax-table (string-to-syntax ".")))) 410 | 411 | (defun perl6-add-font-lock-hint (property &optional group) 412 | (let ((beg (match-beginning (or group 1))) 413 | (context (perl6-syntax-context))) 414 | (put-text-property beg (1+ beg) property 415 | (cons context (match-data))))) 416 | 417 | (defun perl6-syntax-propertize (start end) 418 | "Add context-specific syntax properties to code. 419 | 420 | Takes arguments START and END which delimit the region to propertize." 421 | (let ((case-fold-search nil)) 422 | (goto-char start) 423 | (remove-text-properties start end '(perl6-metaoperator)) 424 | (funcall 425 | (syntax-propertize-rules 426 | ;; [-'] between identifiers are symbol chars 427 | ((rx (regex "[_[:alnum:]]") (group (any "-'")) (regex "[_[:alpha:]]")) 428 | (1 "_")) 429 | ;; same for "::" around identifiers 430 | ((perl6-rx (or (and (opt identifier) (group "::") symbol-start) 431 | (and identifier (group "::")))) 432 | (1 "_") 433 | (2 "_")) 434 | ;; comments 435 | ((rx "#") 436 | (0 (ignore (perl6-syntax-propertize-comment end)))) 437 | ;; postfix hyper operators 438 | ((perl6-rx (or identifier "]" ")") (group (or "»" ">>"))) 439 | (0 nil)) 440 | ;; other metaoperators like (-), R=>, [*], X~, »+« 441 | ((perl6-rx (or set-operator rsxz-operator reduce-operator hyper-operator)) 442 | (0 (ignore (perl6-add-font-lock-hint 'perl6-metaoperator 0)))) 443 | ;; angle-bracketed quoting construct 444 | ((rx (or (1+ "<") (1+ "«"))) 445 | (0 (ignore (perl6-syntax-propertize-angles (match-string 0))))) 446 | ;; backslashes outside strings/comments are punctuation, not escapes 447 | ((rx "\\") 448 | (0 (ignore (perl6-syntax-propertize-backslash)))) 449 | ;; unicode string quotes 450 | ((rx (any "‘｢“")) 451 | (0 (ignore (when (eq (perl6-syntax-context) nil) 452 | (backward-char) 453 | (perl6-syntax-propertize-delimiters "|"))))) 454 | ;; sigils and twigils are prefix characters 455 | ((perl6-rx variable) 456 | (1 ". p") 457 | (2 ". p") 458 | ;; go back to the end of the twigils/sigils, so other syntax 459 | ;; rules above can be applied to later parts of the variable name 460 | (4 (ignore (goto-char (or (match-end 2) (match-end 1))))))) 461 | start end))) 462 | 463 | (defun perl6-font-lock-syntactic-face (state) 464 | "Specify font lock faces based on syntax table entries. 465 | 466 | Takes STATE, the parse state." 467 | (pcase (perl6-syntax-context state) 468 | (`string 'perl6-string) 469 | (`comment 'perl6-comment))) 470 | 471 | (defun perl6-search-when (regex condition limit) 472 | "Search forward for REGEX if the match satisfies CONDITION. 473 | 474 | CONDITION should be a lambda that will be called after REGEX 475 | matches. If CONDITION returns non-nil, this function will set the 476 | match data, then move point forward and return its position, like 477 | `re-search-forward' would. 478 | 479 | If CONDITION returns nil, further searches for REGEX will be 480 | performed until CONDITION returns non-nil or REGEX fails to 481 | match. 482 | 483 | LIMIT can be used to bound the search." 484 | (let ((limit (or limit (point-max))) 485 | (keep-searching t) 486 | (new-match-data)) 487 | (save-excursion 488 | (save-match-data 489 | (while keep-searching 490 | (if (re-search-forward regex limit t) 491 | (when (save-excursion (save-match-data (funcall condition))) 492 | (setq new-match-data (match-data) 493 | keep-searching nil)) 494 | (setq keep-searching nil))))) 495 | (when new-match-data 496 | (set-match-data new-match-data) 497 | (goto-char (match-end 0))))) 498 | 499 | (defun perl6-match-type-constraint (limit) 500 | (perl6-search-when 501 | (perl6-rx (or (group (symbol type-constraint)) 502 | (and (group (symbol "is")) 503 | (1+ space) 504 | (opt (group (symbol type-property)))))) 505 | (lambda () 506 | (goto-char (match-beginning 0)) 507 | (and (eq (perl6-syntax-context) nil) 508 | (not (looking-back (rx (or (char ".^") 509 | (and line-start (0+ space)))))))) 510 | limit)) 511 | 512 | (defun perl6-match-property (property context limit) 513 | (when (symbolp context) 514 | (setq context (list context))) 515 | (let ((pos (next-single-char-property-change (point) property nil limit))) 516 | (when (> pos (point)) 517 | (let ((pos-with-match-data (if (and (= pos (1+ (point))) 518 | (= (point) (point-at-bol)) 519 | (not (get-text-property pos property))) 520 | (point) 521 | pos))) 522 | (goto-char pos) 523 | (let ((value (get-text-property pos-with-match-data property))) 524 | (if (and value (memq (car value) context)) 525 | (progn (set-match-data (cdr value)) t) 526 | (perl6-match-property property context limit))))))) 527 | 528 | (defun perl6-match-metaoperator (limit) 529 | (perl6-match-property 'perl6-metaoperator nil limit)) 530 | 531 | (defun perl6-match-string-delimiter (limit) 532 | (perl6-search-when 533 | (perl6-rx (or (syntax string-quote) (syntax string-delimiter))) 534 | (lambda () (not (eq (perl6-syntax-context) `comment))) 535 | limit)) 536 | 537 | (defconst perl6-font-lock-keywords 538 | `( 539 | ;; (-) R=> [*] X~ »+« 540 | (perl6-match-metaoperator 0 'perl6-operator) 541 | ;; placeholder sigils 542 | (,(perl6-rx (group (any "@$%&")) 543 | (or 544 | "<" 545 | (and (0+ space) 546 | (or (any ",\)\}") (symbol "where"))))) 547 | 1 'perl6-sigil) 548 | ;; $foo @Bla::Hlagh $.bar $?CLASS 549 | (,(perl6-rx variable) 550 | (1 'perl6-sigil) 551 | (2 'perl6-twigil) 552 | (3 'perl6-var-package) 553 | (4 'perl6-var-name)) 554 | ;; v6.0.0 555 | (,(perl6-rx symbol-start version) 0 'perl6-version) 556 | ;; e.g. $foo is cached 557 | (perl6-match-type-constraint 558 | (1 'perl6-type-constraint nil t) 559 | (2 'perl6-type-constraint nil t) 560 | (3 'perl6-type-property nil t)) 561 | ;; method calls like $foo.bar or $hlagh.^methods 562 | (,(perl6-rx (group (any ".^?")) (group identifier symbol-end)) 563 | (1 'perl6-operator) 564 | (2 'perl6-identifier)) 565 | ;; autoquoting fat arrow, foo => $bar 566 | (,(perl6-rx (group (symbol identifier)) (1+ space) (group "=>")) 567 | (1 'perl6-string) 568 | (2 'perl6-operator)) 569 | ;; "proto foo", "proto sub foo", etc 570 | (,(perl6-rx (group (symbol pre-declare)) 571 | (opt (1+ space) (group (symbol declare))) 572 | (opt (1+ space) (group identifier))) 573 | (1 'perl6-declare) 574 | (2 'perl6-declare nil t) 575 | (3 'perl6-identifier nil t)) 576 | ;; "sub foo" 577 | (,(perl6-rx (group (symbol declare)) 578 | (opt (1+ space) (group identifier))) 579 | (1 'perl6-declare) 580 | (2 'perl6-identifier nil t)) 581 | ;; high-level types (Scalar, Class, Str, etc) 582 | (,(perl6-rx (group symbol-start high-type) "(") 1 'perl6-type) 583 | ;; anything preceding an open-paren is just an identifier 584 | (,(perl6-rx (group symbol-start identifier) "(") 1 'perl6-identifier) 585 | ;; contextualizers 586 | (,(perl6-rx 587 | (or (and (group-n 1 (any "$@%&")) "(") 588 | (group-n 2 (symbol (or "item" "list" "hash"))))) 589 | (1 'perl6-operator nil t) 590 | (2 'perl6-operator nil t)) 591 | ;; low-level types (int, bool, complex, etc) 592 | (,(perl6-rx (symbol (or low-type high-type))) 0 'perl6-type) 593 | ;; adverbs like :foo and :!bar 594 | (,(perl6-rx (or bol (regex "[^:]")) (group ":" (opt "!")) (group (symbol identifier))) 595 | (1 'perl6-operator) 596 | (2 'perl6-string)) 597 | ;; div, and, eq... 598 | (,(perl6-rx (symbol operator-word)) 0 'perl6-operator) 599 | ;; BEGIN, CHECK, INIT... 600 | (,(perl6-rx (symbol phaser)) 0 'perl6-phaser) 601 | ;; die, fail, try... 602 | (,(perl6-rx (symbol exception)) 0 'perl6-exception) 603 | ;; let, my, our... 604 | (,(perl6-rx (symbol scope)) 0 'perl6-scope) 605 | ;; if, else, elsif... 606 | (,(perl6-rx (symbol conditional)) 0 'perl6-conditional) 607 | ;; use, require... 608 | (,(perl6-rx (symbol include)) 0 'perl6-include) 609 | ;; for, loop, repeat... 610 | (,(perl6-rx (symbol loop)) 0 'perl6-loop) 611 | ;; take, do, when... 612 | (,(perl6-rx (symbol flow-control)) 0 'perl6-flow-control) 613 | ;; oo, fatal... 614 | (,(perl6-rx (symbol pragma)) 0 'perl6-pragma) 615 | ;; special numbers 616 | (,(perl6-rx (symbol (or "Inf" "NaN"))) 617 | 0 'perl6-number) 618 | ;; block label declarations 619 | (,(perl6-rx line-start (0+ space) (group identifier ":") (or space line-end)) 620 | 1 'perl6-label) 621 | ;; block label references 622 | (,(perl6-rx (symbol (or "goto" "next" "last" "redo")) 623 | (1+ space) 624 | (group identifier)) 625 | 1 'perl6-label) 626 | ;; identifiers with colons 627 | (,(perl6-rx 628 | (or symbol-start 629 | (and "::" (group (opt (regex "[?*]"))))) 630 | identifier 631 | (opt (0+ "::" identifier)) 632 | (opt "::")) 633 | (0 'perl6-identifier) 634 | (1 'perl6-twigil t t)) 635 | ;; numbers 636 | (,(perl6-rx (or bol (regex "[^[:digit:]]")) number) 637 | (1 'perl6-number) 638 | (2 'perl6-number-addition nil t) 639 | (3 'perl6-number nil t) 640 | (4 'perl6-number-addition nil t)) 641 | ;; punctuation operators (+ - : / *, etc) 642 | (,(perl6-rx operator-char) 0 'perl6-operator) 643 | ;; number with an explicit base (0b010101, 0x1ef1, etc) 644 | (,(perl6-rx base-number) 645 | (1 'perl6-number) 646 | (2 'perl6-number-addition) 647 | (3 'perl6-number)) 648 | ;; highlight string delimiters as operators 649 | (perl6-match-string-delimiter 650 | 0 'perl6-operator t)) 651 | "Font lock keywords for Perl 6.") 652 | 653 | (provide 'perl6-font-lock) 654 | 655 | ;; Local Variables: 656 | ;; coding: utf-8 657 | ;; indent-tabs-mode: nil 658 | ;; End: 659 | 660 | ;;; perl6-font-lock.el ends here 661 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------