pax_global_header00006660000000000000000000000064126131455550014521gustar00rootroot0000000000000052 comment=bdf121b2c05bc74d3d7961a91d7afeb6176e0f45 lua-mode-20151025/000077500000000000000000000000001261314555500134655ustar00rootroot00000000000000lua-mode-20151025/.travis.yml000066400000000000000000000007511261314555500156010ustar00rootroot00000000000000language: emacs-lisp sudo: no addons: apt: packages: - lua5.2 env: - EVM_EMACS=emacs-24.1-travis - EVM_EMACS=emacs-24.2-travis - EVM_EMACS=emacs-24.3-travis - EVM_EMACS=emacs-24.4-travis - EVM_EMACS=emacs-24.5-travis - EVM_EMACS=emacs-git-snapshot-travis before_install: - curl -fsSkL https://gist.github.com/rejeep/ebcd57c3af83b049833b/raw > travis.sh && source ./travis.sh - evm install "$EVM_EMACS" --use --skip install: - cask install script: - make test lua-mode-20151025/AUTHORS000066400000000000000000000026061261314555500145410ustar00rootroot00000000000000Thanks to: - Thanks to xristos for subprocess buffer handling fixes (tiny change) - Thanks to Juergen Fuhrmann (tiny change) - Thanks to guoxx for imenu expression extension (tiny change). - Vedat Hallac for sharing some of his fixes and updates to core indentation logics. - Julien Danjou for a patch deriving lua-mode from prog-mode with define-derived-mode - Rafael Sanchez for patch adding lua-mode to interpreter-mode-alist. - Thanks to Leonardo Etcheverry for enabling narrow-to-defun and fixing lua-send-defun. - Thanks to Tobias Polzin for function indenting patch: Indent "(" like "{". - Thanks to Fabien for imenu patches. - Thanks to Simon Marshall and Olivier Andrieu for font-lock patches. - Additional font-lock highlighting and indentation tweaks by Adam D. Moss . - Juergen Hoetzel for hard work maintaining lua-mode during 2006 -- 2010. - Reuben Thomas for hard work maintaining lua-mode during 2010 -- 2011. - Rolando Pereira for adding support for goto keyword Ideas: - thanks to d87 for an idea of highlighting lua builtins lua-mode-20151025/Cask000066400000000000000000000003061261314555500142700ustar00rootroot00000000000000(source melpa) (source gnu) (package "lua-mode" "dev" "Major mode for editing Lua") (development (depends-on "buttercup") (depends-on "cl-lib")) ;; Local Variables: ;; mode: emacs-lisp ;; End: lua-mode-20151025/Makefile000066400000000000000000000024231261314555500151260ustar00rootroot00000000000000# Makefile for lua-mode VERSION="$(shell sed -nre '/^;; Version:/ { s/^;; Version:[ \t]+//; p }' lua-mode.el)" DISTFILE = lua-mode-$(VERSION).zip # EMACS value may be overridden EMACS?=emacs EMACS_MAJOR_VERSION=$(shell $(EMACS) -batch -eval '(princ emacs-major-version)') LUA_MODE_ELC=lua-mode.$(EMACS_MAJOR_VERSION).elc EMACS_BATCH=cask exec $(EMACS) --batch -Q default: @echo version is $(VERSION) %.$(EMACS_MAJOR_VERSION).elc: %.elc mv $< $@ %.elc: %.el $(EMACS_BATCH) -f batch-byte-compile $< compile: $(LUA_MODE_ELC) dist: rm -f $(DISTFILE) && \ git archive --format=zip -o $(DISTFILE) --prefix=lua-mode/ HEAD .PHONY: test-compiled test-uncompiled # check both regular and compiled versions test: test-compiled test-uncompiled test-compiled: $(LUA_MODE_ELC) EMACS=$(EMACS) cask exec buttercup -l $(LUA_MODE_ELC) test-uncompiled: EMACS=$(EMACS) cask exec buttercup -l lua-mode.el release: git fetch && \ git diff remotes/origin/master --exit-code && \ git tag -a -m "Release tag" rel-$(VERSION) && \ woger lua-l lua-mode lua-mode "release $(VERSION)" "Emacs major mode for editing Lua files" release-notes-$(VERSION) http://github.com/immerrr/lua-mode/ && \ git push origin master @echo 'Send update to ELPA!' tryout: cask exec $(EMACS) -Q -l init-tryout.el test.lua lua-mode-20151025/NEWS000066400000000000000000000066371261314555500142000ustar00rootroot00000000000000* Release rel-20151025 ** allow setting lua-indent-level as file local variable (issue #108) ** add luadoc keyword fontification (issue #71) ** fix comments being spilled into the code (issue #25) ** add `run-lua' alias for `lua-start-process' (issue #97) ** skip shebang line when sending to inferior buffer (issue #61) ** add builtin functions and modules for Lua 5.3 (issue #90) ** fix lua-beginning-of-proc matching (issue #85) ** add `lua-documentation-function' to customize the way the documentation is shown, rename `lua-search-url-prefix' to `lua-documentation-url', auto-detect lua documentation installed in /usr/share/doc/lua (issue #82) ** fix some errors with `lua-kill-process' (issue #69) ** improve `next-error' integration in Lua subprocess buffer: "stdin:N:" entries are no longer highlighted and no longer prompt for "stdin" files ** add support for Lua 5.2 goto keyword (issue #66) ** add support for local functions in imenu (issue #65) ** fix font lock of functions with underscores (issue #63) ** don't send shebang when sending lua buffer to subprocess (issue #61) ** fix interaction with electric-pair-mode (issue #54) ** rewrite lua-send-region to use "loadstring" rather than "dofile" - sending code to processes on remote hosts is now supported - stack traces for errors occurred in sent code point to proper lines in files - script path is preserved when sending code (issue #55) - no more hang ups when waiting for input (issue #48) or after sending code with no output (issue #60) ** increase consistency with Emacs ecosystem to improve user experience - fix character syntax hacks: '.' is now punctuation and '_' is now symbol - remove number highlighting - font-lock "nil", "true" and "false" as constants rather than keywords ** make builtin font-locking more stable, enable it after ".." operator ** add missing modulo operator (%) to line-continuation tokens ** fix interaction with electric-pair-mode (issue #54) ** when unindenting block-close tokens consider all of them, not just the first one x = foobar('arg1', function () print('foobar') end) ^ this line starts with two block-close tokens and is unindented accordingly * Release rel-20130419 ** highlight hash-bang line as comment ** make lua-mode-hook editable via customize ** fix several indentation bugs & quirks ** fix lua-send-proc not to send previous function when point is at the beginning of a function ** derive lua-mode from prog-mode for Emacs24 ** add font-locking for builtins and numeric constants ** fix a bug causing exponential complexity in a keyword matching regexp ** add more unindentation cases for block-closing tokens ** improve multiline highlighting via font-lock-syntactic-keywords This should make font-locking of multiline literals more fluent & stable. And it becomes customizable via standard font-lock configuration ** properly fontify variable definitions in 'local ...' & 'for ...' Also, perform some basic syntax verification in those lines. Multi-line constructs not supported yet. ** fix indentation for blocks starting on continued lines local foo = { bar, baz } ^ 1. these lines should be indented properly now ^ 2. the following lines should be unindented properly now ** extend imenu-generic-expression Now it matches 'foo = function(...)' function definitions lua-mode-20151025/README000066400000000000000000000005061261314555500143460ustar00rootroot00000000000000Lua-mode ======== Maintainer: immerrr lua-mode is an Emacs major mode for editing Lua files. For documentation, including installation instructions, please see lua-mode.el. Please send bug reports and suggestions to the maintainer, or use the trackers at github: http://github.com/immerrr/lua-mode lua-mode-20151025/README.md000066400000000000000000000071521261314555500147510ustar00rootroot00000000000000# Lua mode [![Build Status](https://travis-ci.org/immerrr/lua-mode.svg?branch=master)](https://travis-ci.org/immerrr/lua-mode) **lua-mode** is a major mode for editing Lua sources in Emacs. If you have a problem or a suggestion about **lua-mode**, please, let me know about it via github's [Issue Tracker](https://github.com/immerrr/lua-mode/issues). ## INSTALLATION ### EL-GET INSTALLATION [El-get](https://github.com/dimitri/el-get) is a package manager which greatly simplifies adding modules to your Emacs and keeping them up-to-date. Once you have **el-get** set up, installing **lua-mode** can be done with el-get-install "lua-mode" and updating is no more than el-get-update "lua-mode"` Please, consult with [el-get documentation](https://github.com/dimitri/el-get/blob/master/README.md) for further information. ### MANUAL INSTALLATION To install, you need to make sure that `lua-mode.el` is on your load-path (and optionally byte-compile it) and to set up Emacs to automatically enable **lua-mode** for `*.lua` files or ones that contain lua hash-bang line (`#!/usr/bin/lua`). Putting this snippet to `.emacs` should be enough in most cases: ```lisp ;;;; This snippet enables lua-mode ;; This line is not necessary, if lua-mode.el is already on your load-path (add-to-list 'load-path "/path/to/directory/where/lua-mode-el/resides") (autoload 'lua-mode "lua-mode" "Lua editing mode." t) (add-to-list 'auto-mode-alist '("\\.lua$" . lua-mode)) (add-to-list 'interpreter-mode-alist '("lua" . lua-mode)) ``` ## FEATURES - syntactic indentation & highlighting (including multiline literals/comments) - evaluation of lines/regions/functions/files in Lua subprocess or direct interaction with its REPL - documentation lookup (using online/offline reference manual, e.g. [string.find](http://www.lua.org/manual/5.1/manual.html#pdf-string.find)) - [imenu](http://www.gnu.org/software/emacs/manual/html_node/emacs/Imenu.html) integration - [HideShow](http://www.gnu.org/software/emacs/manual/html_node/emacs/Hideshow.html) integration ## CUSTOMIZATION The following variables are available for customization (see more via `M-x customize-group lua`): - Var `lua-indent-level` (default `3`): indentation offset in spaces - Var `lua-indent-string-contents` (default `nil`): set to `t` if you like to have contents of multiline strings to be indented like comments - Var `lua-mode-hook`: list of functions to execute when lua-mode is initialized - Var `lua-documentation-url` (default `"http://www.lua.org/manual/5.1/manual.html#pdf-"`): base URL for documentation lookup - Var `lua-documentation-function` (default `browse-url`): function used to show documentation (`eww` is a viable alternative for Emacs 25) ## LUA SUBPROCESS CREATION - Var `lua-default-application` (default `"lua"`): command to start up the subprocess (REPL) - Var `lua-default-command-switches` (default `"-i"`): arguments to pass to the subprocess on startup (make sure `-i` is there if you expect working with Lua shell interactively) - Cmd `lua-start-process`: start new REPL process, usually happens automatically - Cmd `lua-kill-process`: kill current REPL process ## LUA SUBPROCESS INTERACTION - Cmd `lua-show-process-buffer`: switch to REPL buffer - Cmd `lua-hide-process-buffer`: hide window showing REPL buffer - Var `lua-always-show`: show REPL buffer after sending something - Cmd `lua-send-buffer`: send whole buffer - Cmd `lua-send-current-line`: send current line - Cmd `lua-send-defun`: send current top-level function - Cmd `lua-send-region`: send active region - Cmd `lua-restart-with-whole-file`: restart REPL and send whole buffer lua-mode-20151025/TODO000066400000000000000000000054631261314555500141650ustar00rootroot00000000000000# -*- mode: org -*- #+PROPERTY: COOKIE_DATA todo recursive * Useful resources - Lua5.1 - [[http://www.lua.org/manual/5.1/manual.html#8][bnf syntax]] - [[http://www.lua.org/manual/5.1/index.html#index][function index]] - Lua5.2 - [[http://www.lua.org/manual/5.2/manual.html#9][syntax]] - [[http://www.lua.org/manual/5.2/#index][function index]] * TODO Fontify function parameters as variable names * TODO Fontify variable names in line-continuation statements - local foo,bar,baz = xyz,xyyz,xyyz - function xyzzy( foo, bar, baz ) * TODO left-shift parenthesis that closes function parameter block local foobar = function( param1, param2, param3 ) dosmth() end * TODO issue #33 a = { } b = { } * TODO finish works in lua-compat branch for Emacs21/Emacs22 * TODO put text property 'lua-last-stmt-begin - continuation-line detection becomes a one-liner - multiline fontification becomes easier - beginning-of-defun is a one-liner - if property value is a marker, it will get updated on each edit, that's not necessary and might cause performance impact - if property value is an integer, it needs to be updated before use 1. `buffer-access-fontify-functions' / `buffer-access-fontified-property' 2. maintain `stmt-begin-up-to-date-pos' point - after-change function sets `stmt-begin-up-to-date-pos' to (line-beginning-position) - (defun get-stmt-beginning-pos (pos) ...) - (when (< stmt-begin-up-to-date-pos pos) ... (setq stmt-begin-up-to-date-pos pos)) - return property at position pos * TODO Support line-continuation statements [0/2] - [ ] assignments x,y = long_value, other_long_value - [ ] `for ... do' operators * TODO update site [0/2] ** TODO reuse section-aware template ** TODO add section for release downloading * TODO [#C] Improve lua-prefix-key machinery [0/2] - [ ] add docs - [ ] improve setting prefix-key Currently, prefix-key is parsed from a macro string (which may contain more than one key) and all keys but the first one are silently removed. Maybe there's a better way to do it. * DONE Fix braces/parens that reduce indent by const offset this causes wrong behavior when indented block was anchored to first line, e.g. my_func( hello, world ) * DONE lua-mark-all-multiline-literals [5/5] - [X] process --[[ as multiline comment - [X] process ---[[ as single-line comment distinguish by syntax state of last dash before square bracket - [X] don't recognize [[ in comments or literals - [X] extend region backwards if BEGIN is inside multiline literal - [X] don't change buffer-modified-p state * TODO [#C] Redo syntax engine using semantic/wisent lua-mode-20151025/init-tryout.el000066400000000000000000000006771261314555500163300ustar00rootroot00000000000000(load-file "lua-mode.el") (defmacro add-trace-for (fn) (let ((trace-fn-name (intern (concat "trace--" (symbol-name fn))))) `(progn (defun ,trace-fn-name (&rest args) (message "%s was called with: %S" #',fn args)) (add-function :before (symbol-function #',fn) #',trace-fn-name)))) ;; (add-trace-for font-lock-fontify-region) ;; (add-trace-for font-lock-unfontify-region) ;; (add-trace-for lua--propertize-multiline-bounds) lua-mode-20151025/lua-mode.el000066400000000000000000002313751261314555500155250ustar00rootroot00000000000000;;; lua-mode.el --- a major-mode for editing Lua scripts ;; Author: 2011-2013 immerrr ;; 2010-2011 Reuben Thomas ;; 2006 Juergen Hoetzel ;; 2004 various (support for Lua 5 and byte compilation) ;; 2001 Christian Vogler ;; 1997 Bret Mogilefsky starting from ;; tcl-mode by Gregor Schmid ;; with tons of assistance from ;; Paul Du Bois and ;; Aaron Smith . ;; ;; URL: http://immerrr.github.com/lua-mode ;; Version: 20151025 ;; ;; This file is NOT part of Emacs. ;; ;; This program is free software; you can redistribute it and/or ;; modify it under the terms of the GNU General Public License ;; as published by the Free Software Foundation; either version 2 ;; of the License, or (at your option) any later version. ;; ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; ;; You should have received a copy of the GNU General Public License ;; along with this program; if not, write to the Free Software ;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, ;; MA 02110-1301, USA. ;; Keywords: languages, processes, tools ;; This field is expanded to commit SHA, date & associated heads/tags during ;; archive creation. ;; Revision: bdf121b (Sun, 25 Oct 2015 15:30:37 +0300 (HEAD -> master, tag: v20151025, tag: rel-20151025)) ;; ;;; Commentary: ;; lua-mode provides support for editing Lua, including automatical ;; indentation, syntactical font-locking, running interactive shell, ;; interacting with `hs-minor-mode' and online documentation lookup. ;; The following variables are available for customization (see more via ;; `M-x customize-group lua`): ;; - Var `lua-indent-level': ;; indentation offset in spaces ;; - Var `lua-indent-string-contents': ;; set to `t` if you like to have contents of multiline strings to be ;; indented like comments ;; - Var `lua-mode-hook': ;; list of functions to execute when lua-mode is initialized ;; - Var `lua-documentation-url': ;; base URL for documentation lookup ;; - Var `lua-documentation-function': function used to ;; show documentation (`eww` is a viable alternative for Emacs 25) ;; These are variables/commands that operate on Lua subprocess: ;; - Var `lua-default-application': ;; command to start up the subprocess (REPL) ;; - Var `lua-default-command-switches': ;; arguments to pass to the subprocess on startup (make sure `-i` is there ;; if you expect working with Lua shell interactively) ;; - Cmd `lua-start-process': start new REPL process, usually happens automatically ;; - Cmd `lua-kill-process': kill current REPL process ;; These are variables/commands for interaction with Lua subprocess: ;; - Cmd `lua-show-process-buffer': switch to REPL buffer ;; - Cmd `lua-hide-process-buffer': hide window showing REPL buffer ;; - Var `lua-always-show': show REPL buffer after sending something ;; - Cmd `lua-send-buffer': send whole buffer ;; - Cmd `lua-send-current-line': send current line ;; - Cmd `lua-send-defun': send current top-level function ;; - Cmd `lua-send-region': send active region ;; - Cmd `lua-restart-with-whole-file': restart REPL and send whole buffer ;; See "M-x apropos-command ^lua-" for a list of commands. ;; See "M-x customize-group lua" for a list of customizable variables. ;;; Code: (eval-when-compile (require 'cl)) (require 'comint) (require 'newcomment) (require 'rx) ;; rx-wrappers for Lua (eval-when-compile ;; Silence compilation warning about `compilation-error-regexp-alist' defined ;; in compile.el. (require 'compile)) (eval-and-compile (defvar lua-rx-constituents) (defvar rx-parent) (defun lua-rx-to-string (form &optional no-group) "Lua-specific replacement for `rx-to-string'. See `rx-to-string' documentation for more information FORM and NO-GROUP arguments." (let ((rx-constituents lua-rx-constituents)) (rx-to-string form no-group))) (defmacro lua-rx (&rest regexps) "Lua-specific replacement for `rx'. See `rx' documentation for more information about REGEXPS param." (cond ((null regexps) (error "No regexp")) ((cdr regexps) (lua-rx-to-string `(and ,@regexps) t)) (t (lua-rx-to-string (car regexps) t)))) (defun lua--new-rx-form (form) "Add FORM definition to `lua-rx' macro. FORM is a cons (NAME . DEFN), see more in `rx-constituents' doc. This function enables specifying new definitions using old ones: if DEFN is a list that starts with `:rx' symbol its second element is itself expanded with `lua-rx-to-string'. " (let ((name (car form)) (form-definition (cdr form))) (when (and (listp form-definition) (eq ':rx (car form-definition))) (setcdr form (lua-rx-to-string (cadr form-definition) 'nogroup))) (push form lua-rx-constituents))) (defun lua--rx-symbol (form) ;; form is a list (symbol XXX ...) ;; Skip initial 'symbol (setq form (cdr form)) ;; If there's only one element, take it from the list, otherwise wrap the ;; whole list into `(or XXX ...)' form. (setq form (if (eq 1 (length form)) (car form) (append '(or) form))) (rx-form `(seq symbol-start ,form symbol-end) rx-parent)) (setq lua-rx-constituents (copy-sequence rx-constituents)) ;; group-n is not available in Emacs23, provide a fallback. (unless (assq 'group-n rx-constituents) (defun lua--rx-group-n (form) (concat (format "\\(?%d:" (nth 1 form)) (rx-form `(seq ,@(nthcdr 2 form)) ':) "\\)")) (push '(group-n lua--rx-group-n 1 nil) lua-rx-constituents)) (mapc #'lua--new-rx-form `((symbol lua--rx-symbol 1 nil) (ws . "[ \t]*") (ws+ . "[ \t]+") (lua-name :rx (symbol (regexp "[[:alpha:]_]+[[:alnum:]_]*"))) (lua-funcname :rx (seq lua-name (* ws "." ws lua-name) (opt ws ":" ws lua-name))) (lua-funcheader ;; Outer (seq ...) is here to shy-group the definition :rx (seq (or (seq (symbol "function") ws (group-n 1 lua-funcname)) (seq (group-n 1 lua-funcname) ws "=" ws (symbol "function"))))) (lua-number :rx (seq (or (seq (+ digit) (opt ".") (* digit)) (seq (* digit) (opt ".") (+ digit))) (opt (regexp "[eE][+-]?[0-9]+")))) (lua-assignment-op :rx (seq "=" (or buffer-end (not (any "="))))) (lua-token :rx (or "+" "-" "*" "/" "%" "^" "#" "==" "~=" "<=" ">=" "<" ">" "=" ";" ":" "," "." ".." "...")) (lua-keyword :rx (symbol "and" "break" "do" "else" "elseif" "end" "for" "function" "goto" "if" "in" "local" "not" "or" "repeat" "return" "then" "until" "while"))) )) (eval-and-compile (if (fboundp 'setq-local) (defalias 'lua--setq-local 'setq-local) (defmacro lua--setq-local (var val) `(set (make-local-variable (quote ,var)) ,val))) ;; Backward compatibility for Emacsen < 24.1 (defalias 'lua--prog-mode (if (fboundp 'prog-mode) 'prog-mode 'fundamental-mode)) (defalias 'lua--cl-assert (if (fboundp 'cl-assert) 'cl-assert 'assert)) (defalias 'lua--cl-labels (if (fboundp 'cl-labels) 'cl-labels 'flet)) ;; backward compatibility for Emacsen < 23.3 ;; Emacs 23.3 introduced with-silent-modifications macro (if (fboundp 'with-silent-modifications) (defalias 'lua--with-silent-modifications 'with-silent-modifications) (defmacro lua--with-silent-modifications (&rest body) "Execute BODY, pretending it does not modifies the buffer. This is a reimplementation of macro `with-silent-modifications' for Emacsen that doesn't contain one (pre-23.3)." `(let ((old-modified-p (buffer-modified-p)) (inhibit-modification-hooks t) (buffer-undo-list t)) (unwind-protect ,@body (set-buffer-modified-p old-modified-p)))))) ;; Local variables (defgroup lua nil "Major mode for editing lua code." :prefix "lua-" :group 'languages) (defcustom lua-indent-level 3 "Amount by which Lua subexpressions are indented." :type 'integer :group 'lua :safe #'integerp) (defcustom lua-comment-start "-- " "Default value of `comment-start'." :type 'string :group 'lua) (defcustom lua-comment-start-skip "---*[ \t]*" "Default value of `comment-start-skip'." :type 'string :group 'lua) (defcustom lua-default-application "lua" "Default application to run in lua subprocess." :type 'string :group 'lua) (defcustom lua-default-command-switches (list "-i") "Command switches for `lua-default-application'. Should be a list of strings." :type '(repeat string) :group 'lua) (make-variable-buffer-local 'lua-default-command-switches) (defcustom lua-always-show t "*Non-nil means display lua-process-buffer after sending a command." :type 'boolean :group 'lua) (defcustom lua-documentation-function 'browse-url "Function used to fetch the Lua reference manual." :type `(radio (function-item browse-url) ,@(when (fboundp 'eww) '((function-item eww))) ,@(when (fboundp 'w3m-browse-url) '((function-item w3m-browse-url))) (function :tag "Other function")) :group 'lua) (defcustom lua-documentation-url (or (and (file-readable-p "/usr/share/doc/lua/manual.html") "file:///usr/share/doc/lua/manual.html") "http://www.lua.org/manual/5.1/manual.html") "URL pointing to the Lua reference manual." :type 'string :group 'lua) (defvar lua-process nil "The active Lua subprocess") (defvar lua-process-buffer nil "Buffer used for communication with Lua subprocess") (defun lua--customize-set-prefix-key (prefix-key-sym prefix-key-val) (lua--cl-assert (eq prefix-key-sym 'lua-prefix-key)) (set prefix-key-sym (if (and prefix-key-val (> (length prefix-key-val) 0)) ;; read-kbd-macro returns a string or a vector ;; in both cases (elt x 0) is ok (elt (read-kbd-macro prefix-key-val) 0))) (if (fboundp 'lua-prefix-key-update-bindings) (lua-prefix-key-update-bindings))) (defcustom lua-prefix-key "\C-c" "Prefix for all lua-mode commands." :type 'string :group 'lua :set 'lua--customize-set-prefix-key :get '(lambda (sym) (let ((val (eval sym))) (if val (single-key-description (eval sym)) "")))) (defvar lua-mode-menu (make-sparse-keymap "Lua") "Keymap for lua-mode's menu.") (defvar lua-prefix-mode-map (eval-when-compile (let ((result-map (make-sparse-keymap))) (mapc (lambda (key_defn) (define-key result-map (read-kbd-macro (car key_defn)) (cdr key_defn))) '(("C-l" . lua-send-buffer) ("C-f" . lua-search-documentation))) result-map)) "Keymap that is used to define keys accessible by `lua-prefix-key'. If the latter is nil, the keymap translates into `lua-mode-map' verbatim.") (defvar lua--electric-indent-chars (mapcar #'string-to-char '("}" "]" ")"))) (defvar lua-mode-map (let ((result-map (make-sparse-keymap)) prefix-key) (unless (boundp 'electric-indent-chars) (mapc (lambda (electric-char) (define-key result-map (read-kbd-macro (char-to-string electric-char)) #'lua-electric-match)) lua--electric-indent-chars)) (define-key result-map [menu-bar lua-mode] (cons "Lua" lua-mode-menu)) ;; FIXME: see if the declared logic actually works ;; handle prefix-keyed bindings: ;; * if no prefix, set prefix-map as parent, i.e. ;; if key is not defined look it up in prefix-map ;; * if prefix is set, bind the prefix-map to that key (if (boundp 'lua-prefix-key) (define-key result-map (vector lua-prefix-key) lua-prefix-mode-map) (set-keymap-parent result-map lua-prefix-mode-map)) result-map) "Keymap used in lua-mode buffers.") (defvar lua-electric-flag t "If t, electric actions (like automatic reindentation) will happen when an electric key like `{' is pressed") (make-variable-buffer-local 'lua-electric-flag) (defcustom lua-prompt-regexp "[^\n]*\\(>[\t ]+\\)+$" "Regexp which matches the Lua program's prompt." :type 'regexp :group 'lua) (defcustom lua-traceback-line-re ;; This regexp skips prompt and meaningless "stdin:N:" prefix when looking ;; for actual file-line locations. "^\\(?:[\t ]*\\|.*>[\t ]+\\)\\(?:[^\n\t ]+:[0-9]+:[\t ]*\\)*\\(?:\\([^\n\t ]+\\):\\([0-9]+\\):\\)" "Regular expression that describes tracebacks and errors." :type 'regexp :group 'lua) (defvar lua--repl-buffer-p nil "Buffer-local flag saying if this is a Lua REPL buffer.") (make-variable-buffer-local 'lua--repl-buffer-p) (defadvice compilation-find-file (around lua--repl-find-file (marker filename directory &rest formats) activate) "Return Lua REPL buffer when looking for \"stdin\" file in it." (if (and lua--repl-buffer-p (string-equal filename "stdin") ;; NOTE: this doesn't traverse `compilation-search-path' when ;; looking for filename. (not (file-exists-p (expand-file-name filename (when directory (expand-file-name directory)))))) (setq ad-return-value (current-buffer)) ad-do-it)) (defadvice compilation-goto-locus (around lua--repl-goto-locus (msg mk end-mk) activate) "When message points to Lua REPL buffer, go to the message itself. Usually, stdin:XX line number points to nowhere." (let ((errmsg-buf (marker-buffer msg)) (error-buf (marker-buffer mk))) (if (and (with-current-buffer errmsg-buf lua--repl-buffer-p) (eq error-buf errmsg-buf)) (progn (compilation-set-window (display-buffer (marker-buffer msg)) msg) (goto-char msg)) ad-do-it))) (defcustom lua-indent-string-contents nil "If non-nil, contents of multiline string will be indented. Otherwise leading amount of whitespace on each line is preserved." :group 'lua :type 'boolean) (defcustom lua-jump-on-traceback t "*Jump to innermost traceback location in *lua* buffer. When this variable is non-nil and a traceback occurs when running Lua code in a subprocess, jump immediately to the source code of the innermost traceback location." :type 'boolean :group 'lua) (defcustom lua-mode-hook nil "Hooks called when Lua mode fires up." :type 'hook :group 'lua) (defvar lua-region-start (make-marker) "Start of special region for Lua communication.") (defvar lua-region-end (make-marker) "End of special region for Lua communication.") (defvar lua-emacs-menu '(["Restart With Whole File" lua-restart-with-whole-file t] ["Kill Process" lua-kill-process t] ["Hide Process Buffer" lua-hide-process-buffer t] ["Show Process Buffer" lua-show-process-buffer t] ["Beginning Of Proc" lua-beginning-of-proc t] ["End Of Proc" lua-end-of-proc t] ["Set Lua-Region Start" lua-set-lua-region-start t] ["Set Lua-Region End" lua-set-lua-region-end t] ["Send Lua-Region" lua-send-lua-region t] ["Send Current Line" lua-send-current-line t] ["Send Region" lua-send-region t] ["Send Proc" lua-send-proc t] ["Send Buffer" lua-send-buffer t] ["Search Documentation" lua-search-documentation t]) "Emacs menu for Lua mode.") ;; the whole defconst is inside eval-when-compile, because it's later referenced ;; inside another eval-and-compile block (eval-and-compile (defconst lua--builtins (let* ((modules '("_G" "_VERSION" "assert" "collectgarbage" "dofile" "error" "getfenv" "getmetatable" "ipairs" "load" "loadfile" "loadstring" "module" "next" "pairs" "pcall" "print" "rawequal" "rawget" "rawlen" "rawset" "require" "select" "setfenv" "setmetatable" "tonumber" "tostring" "type" "unpack" "xpcall" "self" ("bit32" . ("arshift" "band" "bnot" "bor" "btest" "bxor" "extract" "lrotate" "lshift" "replace" "rrotate" "rshift")) ("coroutine" . ("create" "isyieldable" "resume" "running" "status" "wrap" "yield")) ("debug" . ("debug" "getfenv" "gethook" "getinfo" "getlocal" "getmetatable" "getregistry" "getupvalue" "getuservalue" "setfenv" "sethook" "setlocal" "setmetatable" "setupvalue" "setuservalue" "traceback" "upvalueid" "upvaluejoin")) ("io" . ("close" "flush" "input" "lines" "open" "output" "popen" "read" "stderr" "stdin" "stdout" "tmpfile" "type" "write")) ("math" . ("abs" "acos" "asin" "atan" "atan2" "ceil" "cos" "cosh" "deg" "exp" "floor" "fmod" "frexp" "huge" "ldexp" "log" "log10" "max" "maxinteger" "min" "mininteger" "modf" "pi" "pow" "rad" "random" "randomseed" "sin" "sinh" "sqrt" "tan" "tanh" "tointeger" "type" "ult")) ("os" . ("clock" "date" "difftime" "execute" "exit" "getenv" "remove" "rename" "setlocale" "time" "tmpname")) ("package" . ("config" "cpath" "loaded" "loaders" "loadlib" "path" "preload" "searchers" "searchpath" "seeall")) ("string" . ("byte" "char" "dump" "find" "format" "gmatch" "gsub" "len" "lower" "match" "pack" "packsize" "rep" "reverse" "sub" "unpack" "upper")) ("table" . ("concat" "insert" "maxn" "move" "pack" "remove" "sort" "unpack")) ("utf8" . ("char" "charpattern" "codepoint" "codes" "len" "offset"))))) (lua--cl-labels ((module-name-re (x) (concat "\\(?1:\\_<" (if (listp x) (car x) x) "\\_>\\)")) (module-members-re (x) (if (listp x) (concat "\\(?:[ \t]*\\.[ \t]*" "\\_<\\(?2:" (regexp-opt (cdr x)) "\\)\\_>\\)?") ""))) (concat ;; common prefix: ;; - beginning-of-line ;; - or neither of [ '.', ':' ] to exclude "foo.string.rep" ;; - or concatenation operator ".." "\\(?:^\\|[^:. \t]\\|[.][.]\\)" ;; optional whitespace "[ \t]*" "\\(?:" ;; any of modules/functions (mapconcat (lambda (x) (concat (module-name-re x) (module-members-re x))) modules "\\|") "\\)")))) "A regexp that matches lua builtin functions & variables. This is a compilation of 5.1, 5.2 and 5.3 builtins taken from the index of respective Lua reference manuals.") (eval-and-compile (defun lua-make-delimited-matcher (elt-regexp sep-regexp end-regexp) "Construct matcher function for `font-lock-keywords' to match a sequence. It's supposed to match sequences with following EBNF: ELT-REGEXP { SEP-REGEXP ELT-REGEXP } END-REGEXP The sequence is parsed one token at a time. If non-nil is returned, `match-data' will have one or more of the following groups set according to next matched token: 1. matched element token 2. unmatched garbage characters 3. misplaced token (i.e. SEP-REGEXP when ELT-REGEXP is expected) 4. matched separator token 5. matched end token Blanks & comments between tokens are silently skipped. Groups 6-9 can be used in any of argument regexps." (lexical-let* ((delimited-matcher-re-template "\\=\\(?2:.*?\\)\\(?:\\(?%s:\\(?4:%s\\)\\|\\(?5:%s\\)\\)\\|\\(?%s:\\(?1:%s\\)\\)\\)") ;; There's some magic to this regexp. It works as follows: ;; ;; A. start at (point) ;; B. non-greedy match of garbage-characters (?2:) ;; C. try matching separator (?4:) or end-token (?5:) ;; D. try matching element (?1:) ;; ;; Simple, but there's a trick: pt.C and pt.D are embraced by one more ;; group whose purpose is determined only after the template is ;; formatted (?%s:): ;; ;; - if element is expected, then D's parent group becomes "shy" and C's ;; parent becomes group 3 (aka misplaced token), so if D matches when ;; an element is expected, it'll be marked with warning face. ;; ;; - if separator-or-end-token is expected, then it's the opposite: ;; C's parent becomes shy and D's will be matched as misplaced token. (elt-expected-re (format delimited-matcher-re-template 3 sep-regexp end-regexp "" elt-regexp)) (sep-or-end-expected-re (format delimited-matcher-re-template "" sep-regexp end-regexp 3 elt-regexp))) (lambda (end) (let* ((prev-elt-p (match-beginning 1)) (prev-sep-p (match-beginning 4)) (prev-end-p (match-beginning 5)) (regexp (if prev-elt-p sep-or-end-expected-re elt-expected-re)) (comment-start (lua-comment-start-pos (syntax-ppss))) (parse-stop end)) ;; If token starts inside comment, or end-token was encountered, stop. (when (and (not comment-start) (not prev-end-p)) ;; Skip all comments & whitespace. forward-comment doesn't have boundary ;; argument, so make sure point isn't beyond parse-stop afterwards. (while (and (< (point) end) (forward-comment 1))) (goto-char (min (point) parse-stop)) ;; Reuse comment-start variable to store beginning of comment that is ;; placed before line-end-position so as to make sure token search doesn't ;; enter that comment. (setq comment-start (lua-comment-start-pos (save-excursion (parse-partial-sexp (point) parse-stop nil nil nil 'stop-inside-comment))) parse-stop (or comment-start parse-stop)) ;; Now, let's match stuff. If regular matcher fails, declare a span of ;; non-blanks 'garbage', and the next iteration will start from where the ;; garbage ends. If couldn't match any garbage, move point to the end ;; and return nil. (or (re-search-forward regexp parse-stop t) (re-search-forward "\\(?1:\\(?2:[^ \t]+\\)\\)" parse-stop 'skip) (prog1 nil (goto-char end))))))))) (defvar lua-font-lock-keywords `(;; highlight the hash-bang line "#!/foo/bar/lua" as comment ("^#!.*$" . font-lock-comment-face) ;; Builtin constants (,(lua-rx (symbol "true" "false" "nil")) . font-lock-constant-face) ;; Keywords (,(lua-rx lua-keyword) . font-lock-keyword-face) ;; Labels used by the "goto" statement ;; Highlights the following syntax: ::label:: (,(lua-rx "::" ws lua-name ws "::") . font-lock-constant-face) ;; Hightlights the name of the label in the "goto" statement like ;; "goto label" (,(lua-rx (symbol (seq "goto" ws+ (group-n 1 lua-name)))) (1 font-lock-constant-face)) ;; Highlight lua builtin functions and variables (,lua--builtins (1 font-lock-builtin-face) (2 font-lock-builtin-face nil noerror)) ("^[ \t]*\\_" (,(lua-make-delimited-matcher (lua-rx lua-name) "," (lua-rx (or (symbol "in") lua-assignment-op))) nil nil (1 font-lock-variable-name-face nil noerror) (2 font-lock-warning-face t noerror) (3 font-lock-warning-face t noerror))) ;; Handle local variable/function names ;; local blalba, xyzzy = ;; ^^^^^^ ^^^^^ ;; ;; local function foobar(x,y,z) ;; ^^^^^^ ;; local foobar = function(x,y,z) ;; ^^^^^^ ("^[ \t]*\\_" (0 font-lock-keyword-face) ;; (* nonl) at the end is to consume trailing characters or otherwise they ;; delimited matcher would attempt to parse them afterwards and wrongly ;; highlight parentheses as incorrect variable name characters. (,(lua-rx point ws lua-funcheader (* nonl)) nil nil (1 font-lock-function-name-face nil noerror)) (,(lua-make-delimited-matcher (lua-rx lua-name) "," (lua-rx lua-assignment-op)) nil nil (1 font-lock-variable-name-face nil noerror) (2 font-lock-warning-face t noerror) (3 font-lock-warning-face t noerror))) (,(lua-rx (or bol ";") ws lua-funcheader) (1 font-lock-function-name-face)) (,(lua-rx (or (group-n 1 "@" (symbol "author" "copyright" "field" "release" "return" "see" "usage" "description")) (seq (group-n 1 "@" (symbol "param" "class" "name")) ws+ (group-n 2 lua-name)))) (1 font-lock-keyword-face t) (2 font-lock-variable-name-face t noerror))) "Default expressions to highlight in Lua mode.") (defvar lua-imenu-generic-expression `((nil ,(lua-rx (or bol ";") ws (opt (seq (symbol "local") ws)) lua-funcheader) 1)) "Imenu generic expression for lua-mode. See `imenu-generic-expression'.") (defvar lua-sexp-alist '(("then" . "end") ("function" . "end") ("do" . "end") ("repeat" . "until"))) (defvar lua-mode-abbrev-table nil "Abbreviation table used in lua-mode buffers.") (define-abbrev-table 'lua-mode-abbrev-table ;; Emacs 23 introduced :system property that prevents abbrev ;; entries from being written to file specified by abbrev-file-name ;; ;; Emacs 22 and earlier had this functionality implemented ;; by simple nil/non-nil flag as positional parameter (if (>= emacs-major-version 23) '(("end" "end" lua-indent-line :system t) ("else" "else" lua-indent-line :system t) ("elseif" "elseif" lua-indent-line :system t)) '(("end" "end" lua-indent-line nil 'system) ("else" "else" lua-indent-line nil 'system) ("elseif" "elseif" lua-indent-line nil 'system)))) (defvar lua-mode-syntax-table (with-syntax-table (copy-syntax-table) ;; main comment syntax: begins with "--", ends with "\n" (modify-syntax-entry ?- ". 12") (modify-syntax-entry ?\n ">") ;; main string syntax: bounded by ' or " (modify-syntax-entry ?\' "\"") (modify-syntax-entry ?\" "\"") ;; single-character binary operators: punctuation (modify-syntax-entry ?+ ".") (modify-syntax-entry ?* ".") (modify-syntax-entry ?/ ".") (modify-syntax-entry ?^ ".") (modify-syntax-entry ?% ".") (modify-syntax-entry ?> ".") (modify-syntax-entry ?< ".") (modify-syntax-entry ?= ".") (modify-syntax-entry ?~ ".") (syntax-table)) "`lua-mode' syntax table.") ;;;###autoload (define-derived-mode lua-mode lua--prog-mode "Lua" "Major mode for editing Lua code." :abbrev-table lua-mode-abbrev-table :syntax-table lua-mode-syntax-table :group 'lua (setq comint-prompt-regexp lua-prompt-regexp) (lua--setq-local font-lock-defaults '(lua-font-lock-keywords ;; keywords nil ;; keywords-only nil ;; case-fold nil ;; syntax-alist nil ;; syntax-begin )) (if (boundp 'syntax-propertize-function) (lua--setq-local syntax-propertize-function 'lua--propertize-multiline-bounds) (with-no-warnings ;; font-lock-syntactic-keywords are deprecated since 24.1 (lua--setq-local font-lock-syntactic-keywords 'lua-font-lock-syntactic-keywords) (lua--setq-local font-lock-extra-managed-props '(syntax-table)))) (lua--setq-local parse-sexp-lookup-properties t) (lua--setq-local indent-line-function 'lua-indent-line) (lua--setq-local beginning-of-defun-function 'lua-beginning-of-proc) (lua--setq-local end-of-defun-function 'lua-end-of-proc) (lua--setq-local comment-start lua-comment-start) (lua--setq-local comment-start-skip lua-comment-start-skip) (lua--setq-local comment-use-syntax t) (lua--setq-local fill-paragraph-function #'lua--fill-paragraph) (with-no-warnings (lua--setq-local comment-use-global-state t)) (lua--setq-local imenu-generic-expression lua-imenu-generic-expression) (when (boundp 'electric-indent-chars) ;; If electric-indent-chars is not defined, electric indentation is done ;; via `lua-mode-map'. (lua--setq-local electric-indent-chars (append electric-indent-chars lua--electric-indent-chars))) ;; setup menu bar entry (XEmacs style) (if (and (featurep 'menubar) (boundp 'current-menubar) (fboundp 'set-buffer-menubar) (fboundp 'add-menu) (not (assoc "Lua" current-menubar))) (progn (set-buffer-menubar (copy-sequence current-menubar)) (add-menu nil "Lua" lua-emacs-menu))) ;; Append Lua menu to popup menu for Emacs. (if (boundp 'mode-popup-menu) (setq mode-popup-menu (cons (concat mode-name " Mode Commands") lua-emacs-menu))) ;; hideshow setup (unless (assq 'lua-mode hs-special-modes-alist) (add-to-list 'hs-special-modes-alist `(lua-mode ,(regexp-opt (mapcar 'car lua-sexp-alist) 'words) ;start ,(regexp-opt (mapcar 'cdr lua-sexp-alist) 'words) ;end nil lua-forward-sexp)))) ;;;###autoload (add-to-list 'auto-mode-alist '("\\.lua$" . lua-mode)) ;;;###autoload (add-to-list 'interpreter-mode-alist '("lua" . lua-mode)) (defun lua-electric-match (arg) "Insert character and adjust indentation." (interactive "P") (let (blink-paren-function) (self-insert-command (prefix-numeric-value arg))) (if lua-electric-flag (lua-indent-line)) (blink-matching-open)) ;; private functions (defun lua--fill-paragraph (&optional justify region) ;; Implementation of forward-paragraph for filling. ;; ;; This function works around a corner case in the following situations: ;; ;; <> ;; -- some very long comment .... ;; some_code_right_after_the_comment ;; ;; If point is at the beginning of the comment line, fill paragraph code ;; would have gone for comment-based filling and done the right thing, but it ;; does not find a comment at the beginning of the empty line before the ;; comment and falls back to text-based filling ignoring comment-start and ;; spilling the comment into the code. (while (and (not (eobp)) (progn (move-to-left-margin) (looking-at paragraph-separate))) (forward-line 1)) (let ((fill-paragraph-handle-comment t)) (fill-paragraph justify region))) (defun lua-prefix-key-update-bindings () (let (old-cons) (if (eq lua-prefix-mode-map (keymap-parent lua-mode-map)) ;; if prefix-map is a parent, delete the parent (set-keymap-parent lua-mode-map nil) ;; otherwise, look for it among children (if (setq old-cons (rassoc lua-prefix-mode-map lua-mode-map)) (delq old-cons lua-mode-map))) (if (null lua-prefix-key) (set-keymap-parent lua-mode-map lua-prefix-mode-map) (define-key lua-mode-map (vector lua-prefix-key) lua-prefix-mode-map)))) (defun lua-set-prefix-key (new-key-str) "Changes `lua-prefix-key' properly and updates keymaps This function replaces previous prefix-key binding with a new one." (interactive "sNew prefix key (empty string means no key): ") (lua--customize-set-prefix-key 'lua-prefix-key new-key-str) (message "Prefix key set to %S" (single-key-description lua-prefix-key)) (lua-prefix-key-update-bindings)) (defun lua-string-p (&optional pos) "Returns true if the point is in a string." (save-excursion (elt (syntax-ppss pos) 3))) (defun lua-comment-start-pos (parsing-state) "Return position of comment containing current point. If point is not inside a comment, return nil." (and parsing-state (nth 4 parsing-state) (nth 8 parsing-state))) (defun lua-comment-or-string-p (&optional pos) "Returns true if the point is in a comment or string." (save-excursion (let ((parse-result (syntax-ppss pos))) (or (elt parse-result 3) (elt parse-result 4))))) (defun lua-comment-or-string-start-pos (&optional pos) "Returns start position of string or comment which contains point. If point is not inside string or comment, return nil." (save-excursion (elt (syntax-ppss pos) 8))) ;; They're propertized as follows: ;; 1. generic-comment ;; 2. generic-string ;; 3. equals signs (defconst lua-ml-begin-regexp "\\(?:\\(?1:-\\)-\\[\\|\\(?2:\\[\\)\\)\\(?3:=*\\)\\[") (defun lua-try-match-multiline-end (end) "Try to match close-bracket for multiline literal around point. Basically, detect form of close bracket from syntactic information provided at point and re-search-forward to it." (let ((comment-or-string-start-pos (lua-comment-or-string-start-pos))) ;; Is there a literal around point? (and comment-or-string-start-pos ;; It is, check if the literal is a multiline open-bracket (save-excursion (goto-char comment-or-string-start-pos) (looking-at lua-ml-begin-regexp)) ;; Yes it is, look for it matching close-bracket. Close-bracket's ;; match group is determined by match-group of open-bracket. (re-search-forward (format "]%s\\(?%s:]\\)" (match-string-no-properties 3) (if (match-beginning 1) 1 2)) end 'noerror)))) (defun lua-try-match-multiline-begin (limit) "Try to match multiline open-brackets. Find next opening long bracket outside of any string/comment. If none can be found before reaching LIMIT, return nil." (let (last-search-matched) (while ;; This loop will iterate skipping all multiline-begin tokens that are ;; inside strings or comments ending either at EOL or at valid token. (and (setq last-search-matched (re-search-forward lua-ml-begin-regexp limit 'noerror)) ;; (1+ (match-beginning 0)) is required to handle triple-hyphen ;; '---[[' situation: regexp matches starting from the second one, ;; but it's not yet a comment, because it's a part of 2-character ;; comment-start sequence, so if we try to detect if the opener is ;; inside a comment from the second hyphen, it'll fail. But the ;; third one _is_ inside a comment and considering it instead will ;; fix the issue. --immerrr (lua-comment-or-string-start-pos (1+ (match-beginning 0))))) last-search-matched)) (defun lua-match-multiline-literal-bounds (limit) ;; First, close any multiline literal spanning from previous block. This will ;; move the point accordingly so as to avoid double traversal. (or (lua-try-match-multiline-end limit) (lua-try-match-multiline-begin limit))) (defun lua-remove-syntax-table-property (limit) "Remove syntax-table property on given region. This is a workaround for `font-lock-default-fontify-region' sometimes forgetting to unpropertize region which may cause multiline recognition to fail. Returns nil so that it's only called once as a syntactic keyword. " (remove-text-properties (point) limit '(syntax-table)) nil) (defvar lua-font-lock-syntactic-keywords '((lua-remove-syntax-table-property nil) (lua-match-multiline-literal-bounds (1 "!" nil noerror) (2 "|" nil noerror)))) (defun lua--propertize-multiline-bounds (start end) "Put text properties on beginnings and ends of multiline literals. Intended to be used as a `syntax-propertize-function'." (save-excursion (goto-char start) (while (lua-match-multiline-literal-bounds end) (when (match-beginning 1) (put-text-property (match-beginning 1) (match-end 1) 'syntax-table (string-to-syntax "!"))) (when (match-beginning 2) (put-text-property (match-beginning 2) (match-end 2) 'syntax-table (string-to-syntax "|")))))) (defun lua-indent-line () "Indent current line for Lua mode. Return the amount the indentation changed by." (let (indent (case-fold-search nil) ;; save point as a distance to eob - it's invariant w.r.t indentation (pos (- (point-max) (point)))) (back-to-indentation) (if (lua-comment-or-string-p) (setq indent (lua-calculate-string-or-comment-indentation)) ;; just restore point position (setq indent (max 0 (lua-calculate-indentation nil)))) (when (not (equal indent (current-column))) (delete-region (line-beginning-position) (point)) (indent-to indent)) ;; If initial point was within line's indentation, ;; position after the indentation. Else stay at same point in text. (if (> (- (point-max) pos) (point)) (goto-char (- (point-max) pos))) indent)) (defun lua-calculate-string-or-comment-indentation () "This function should be run when point at (current-indentation) is inside string" (if (and (lua-string-p) (not lua-indent-string-contents)) ;; if inside string and strings aren't to be indented, return current indentation (current-indentation) ;; At this point, we know that we're inside comment, so make sure ;; close-bracket is unindented like a block that starts after ;; left-shifter. (let ((left-shifter-p (looking-at "\\s *\\(?:--\\)?\\]\\(?1:=*\\)\\]"))) (save-excursion (goto-char (lua-comment-or-string-start-pos)) (+ (current-indentation) (if (and left-shifter-p (looking-at (format "--\\[%s\\[" (match-string-no-properties 1)))) 0 lua-indent-level)))))) (defun lua-find-regexp (direction regexp &optional limit ignore-p) "Searches for a regular expression in the direction specified. Direction is one of 'forward and 'backward. By default, matches in comments and strings are ignored, but what to ignore is configurable by specifying ignore-p. If the regexp is found, returns point position, nil otherwise. ignore-p returns true if the match at the current point position should be ignored, nil otherwise." (let ((ignore-func (or ignore-p 'lua-comment-or-string-p)) (search-func (if (eq direction 'forward) 're-search-forward 're-search-backward)) (case-fold-search nil)) (catch 'found (while (funcall search-func regexp limit t) (if (and (not (funcall ignore-func (match-beginning 0))) (not (funcall ignore-func (match-end 0)))) (throw 'found (point))))))) (defconst lua-block-regexp (eval-when-compile (concat "\\(\\_<" (regexp-opt '("do" "function" "repeat" "then" "else" "elseif" "end" "until") t) "\\_>\\)\\|" (regexp-opt '("{" "(" "[" "]" ")" "}") t)))) (defconst lua-block-token-alist '(("do" "\\_" "\\_" middle-or-open) ("function" "\\_" nil open) ("repeat" "\\_" nil open) ("then" "\\_<\\(e\\(lse\\(if\\)?\\|nd\\)\\)\\_>" "\\_<\\(else\\)?if\\_>" middle) ("{" "}" nil open) ("[" "]" nil open) ("(" ")" nil open) ("if" "\\_" nil open) ("for" "\\_" nil open) ("while" "\\_" nil open) ("else" "\\_" "\\_" middle) ("elseif" "\\_" "\\_" middle) ("end" nil "\\_<\\(do\\|function\\|then\\|else\\)\\_>" close) ("until" nil "\\_" close) ("}" nil "{" close) ("]" nil "\\[" close) (")" nil "(" close)) "This is a list of block token information blocks. Each token information entry is of the form: KEYWORD FORWARD-MATCH-REGEXP BACKWARDS-MATCH-REGEXP TOKEN-TYPE KEYWORD is the token. FORWARD-MATCH-REGEXP is a regexp that matches all possble tokens when going forward. BACKWARDS-MATCH-REGEXP is a regexp that matches all possble tokens when going backwards. TOKEN-TYPE determines where the token occurs on a statement. open indicates that the token appears at start, close indicates that it appears at end, middle indicates that it is a middle type token, and middle-or-open indicates that it can appear both as a middle or an open type.") (defconst lua-indentation-modifier-regexp ;; The absence of else is deliberate, since it does not modify the ;; indentation level per se. It only may cause the line, in which the ;; else is, to be shifted to the left. (concat "\\(\\_<" (regexp-opt '("do" "function" "repeat" "then" "if" "else" "elseif" "for" "while") t) "\\_>\\|" (regexp-opt '("{" "(" "[")) "\\)\\|\\(\\_<" (regexp-opt '("end" "until") t) "\\_>\\|" (regexp-opt '("]" ")" "}")) "\\)") ) (defun lua-get-block-token-info (token) "Returns the block token info entry for TOKEN from lua-block-token-alist" (assoc token lua-block-token-alist)) (defun lua-get-token-match-re (token-info direction) "Returns the relevant match regexp from token info" (cond ((eq direction 'forward) (cadr token-info)) ((eq direction 'backward) (caddr token-info)) (t nil))) (defun lua-get-token-type (token-info) "Returns the relevant match regexp from token info" (cadddr token-info)) (defun lua-backwards-to-block-begin-or-end () "Move backwards to nearest block begin or end. Returns nil if not successful." (interactive) (lua-find-regexp 'backward lua-block-regexp)) (defun lua-find-matching-token-word (token &optional direction) (let* ((token-info (lua-get-block-token-info token)) (match-type (lua-get-token-type token-info)) ;; If we are on a middle token, go backwards. If it is a middle or open, ;; go forwards (search-direction (or direction (if (or (eq match-type 'open) (eq match-type 'middle-or-open)) 'forward 'backward) 'backward)) (match (lua-get-token-match-re token-info search-direction)) maybe-found-pos) ;; if we are searching forward from the token at the current point ;; (i.e. for a closing token), need to step one character forward ;; first, or the regexp will match the opening token. (if (eq search-direction 'forward) (forward-char 1)) (catch 'found ;; If we are attempting to find a matching token for a terminating token ;; (i.e. a token that starts a statement when searching back, or a token ;; that ends a statement when searching forward), then we don't need to look ;; any further. (if (or (and (eq search-direction 'forward) (eq match-type 'close)) (and (eq search-direction 'backward) (eq match-type 'open))) (throw 'found nil)) (while (lua-find-regexp search-direction lua-indentation-modifier-regexp) ;; have we found a valid matching token? (let ((found-token (match-string 0)) (found-pos (match-beginning 0))) (let ((found-type (lua-get-token-type (lua-get-block-token-info found-token)))) (if (not (and match (string-match match found-token))) ;; no - then there is a nested block. If we were looking for ;; a block begin token, found-token must be a block end ;; token; likewise, if we were looking for a block end token, ;; found-token must be a block begin token, otherwise there ;; is a grammatical error in the code. (if (not (and (or (eq match-type 'middle) (eq found-type 'middle) (eq match-type 'middle-or-open) (eq found-type 'middle-or-open) (eq match-type found-type)) (goto-char found-pos) (lua-find-matching-token-word found-token search-direction))) (when maybe-found-pos (goto-char maybe-found-pos) (throw 'found maybe-found-pos))) ;; yes. ;; if it is a not a middle kind, report the location (when (not (or (eq found-type 'middle) (eq found-type 'middle-or-open))) (throw 'found found-pos)) ;; if it is a middle-or-open type, record location, but keep searching. ;; If we fail to complete the search, we'll report the location (when (eq found-type 'middle-or-open) (setq maybe-found-pos found-pos)) ;; Cannot use tail recursion. too much nesting on long chains of ;; if/elseif. Will reset variables instead. (setq token found-token) (setq token-info (lua-get-block-token-info token)) (setq match (lua-get-token-match-re token-info search-direction)) (setq match-type (lua-get-token-type token-info)))))) maybe-found-pos))) (defun lua-goto-matching-block-token (&optional parse-start direction) "Find block begion/end token matching the one at the point. This function moves the point to the token that matches the one at the current point. Returns the point position of the first character of the matching token if successful, nil otherwise." (if parse-start (goto-char parse-start)) (let ((case-fold-search nil)) (if (looking-at lua-indentation-modifier-regexp) (let ((position (lua-find-matching-token-word (match-string 0) direction))) (and position (goto-char position)))))) (defun lua-goto-matching-block (&optional noreport) "Go to the keyword balancing the one under the point. If the point is on a keyword/brace that starts a block, go to the matching keyword that ends the block, and vice versa." (interactive) ;; search backward to the beginning of the keyword if necessary (if (eq (char-syntax (following-char)) ?w) (re-search-backward "\\_<" nil t)) (let ((position (lua-goto-matching-block-token))) (if (and (not position) (not noreport)) (error "Not on a block control keyword or brace") position))) (defun lua-forward-line-skip-blanks (&optional back) "Move 1 line forward (back if BACK is non-nil) skipping blank lines. Moves point 1 line forward (or backward) skipping lines that contain no Lua code besides comments. The point is put to the beginning of the line. Returns final value of point as integer or nil if operation failed." (catch 'found (while t (unless (eql (forward-line (if back -1 1)) 0) ;; 0 means success (throw 'found nil)) (unless (or (looking-at "\\s *\\(--.*\\)?$") (lua-comment-or-string-p)) (throw 'found (point)))))) (eval-when-compile (defconst lua-operator-class "-+*/^.=<>~:&|")) (defconst lua-cont-eol-regexp (eval-when-compile (concat "\\(\\_<" (regexp-opt '("and" "or" "not" "in" "for" "while" "local" "function" "if" "until" "elseif" "return") t) "\\_>\\|" "\\(^\\|[^" lua-operator-class "]\\)" (regexp-opt '("+" "-" "*" "/" "%" "^" ".." "==" "=" "<" ">" "<=" ">=" "~=" "." ":" "&" "|" "~" ">>" "<<" "~") t) "\\)" "\\s *\\=")) "Regexp that matches the ending of a line that needs continuation This regexp starts from eol and looks for a binary operator or an unclosed block intro (i.e. 'for' without 'do' or 'if' without 'then') followed by an optional whitespace till the end of the line.") (defconst lua-cont-bol-regexp (eval-when-compile (concat "\\=\\s *" "\\(\\_<" (regexp-opt '("and" "or" "not") t) "\\_>\\|" (regexp-opt '("+" "-" "*" "/" "%" "^" ".." "==" "=" "<" ">" "<=" ">=" "~=" "." ":" "&" "|" "~" ">>" "<<" "~") t) "\\($\\|[^" lua-operator-class "]\\)" "\\)")) "Regexp that matches a line that continues previous one This regexp means, starting from point there is an optional whitespace followed by Lua binary operator. Lua is very liberal when it comes to continuation line, so we're safe to assume that every line that starts with a binop continues previous one even though it looked like an end-of-statement.") (defun lua-last-token-continues-p () "Returns true if the last token on this line is a continuation token." (let ((line-begin (line-beginning-position)) (line-end (line-end-position))) (save-excursion (end-of-line) ;; we need to check whether the line ends in a comment and ;; skip that one. (while (lua-find-regexp 'backward "-" line-begin 'lua-string-p) (if (looking-at "--") (setq line-end (point)))) (goto-char line-end) (re-search-backward lua-cont-eol-regexp line-begin t)))) (defun lua-first-token-continues-p () "Returns true if the first token on this line is a continuation token." (let ((line-end (line-end-position))) (save-excursion (beginning-of-line) ;; if first character of the line is inside string, it's a continuation ;; if strings aren't supposed to be indented, `lua-calculate-indentation' won't even let ;; the control inside this function (re-search-forward lua-cont-bol-regexp line-end t)))) (defconst lua-block-starter-regexp (eval-when-compile (concat "\\(\\_<" (regexp-opt '("do" "while" "repeat" "until" "if" "then" "else" "elseif" "end" "for" "local") t) "\\_>\\)"))) (defun lua-first-token-starts-block-p () "Returns true if the first token on this line is a block starter token." (let ((line-end (line-end-position))) (save-excursion (beginning-of-line) (re-search-forward (concat "\\s *" lua-block-starter-regexp) line-end t)))) (defun lua-is-continuing-statement-p (&optional parse-start) "Return non-nil if the line continues a statement. More specifically, return the point in the line that is continued. The criteria for a continuing statement are: * the last token of the previous line is a continuing op, OR the first token of the current line is a continuing op " (let ((prev-line nil)) (save-excursion (if parse-start (goto-char parse-start)) (save-excursion (setq prev-line (lua-forward-line-skip-blanks 'back))) (and prev-line (not (lua-first-token-starts-block-p)) (or (lua-first-token-continues-p) (and (goto-char prev-line) ;; check last token of previous nonblank line (lua-last-token-continues-p))))))) (defun lua-make-indentation-info-pair (found-token found-pos) "This is a helper function to lua-calculate-indentation-info. Don't use standalone." (cond ;; function is a bit tricky to indent right. They can appear in a lot ot ;; different contexts. Until I find a shortcut, I'll leave it with a simple ;; relative indentation. ;; The special cases are for indenting according to the location of the ;; function. i.e.: ;; (cons 'absolute (+ (current-column) lua-indent-level)) ;; TODO: Fix this. It causes really ugly indentations for in-line functions. ((string-equal found-token "function") (cons 'relative lua-indent-level)) ;; block openers ((member found-token (list "{" "(" "[")) (save-excursion (let ((found-bol (line-beginning-position))) (forward-comment (point-max)) ;; If the next token is on this line and it's not a block opener, ;; the next line should align to that token. (if (and (zerop (count-lines found-bol (line-beginning-position))) (not (looking-at lua-indentation-modifier-regexp))) (cons 'absolute (current-column)) (cons 'relative lua-indent-level))))) ;; These are not really block starters. They should not add to indentation. ;; The corresponding "then" and "do" handle the indentation. ((member found-token (list "if" "for" "while")) (cons 'relative 0)) ;; closing tokens follow: These are usually taken care of by ;; lua-calculate-indentation-override. ;; elseif is a bit of a hack. It is not handled separately, but it needs to ;; nullify a previous then if on the same line. ((member found-token (list "until" "elseif")) (save-excursion (let ((line (line-number-at-pos))) (if (and (lua-goto-matching-block-token found-pos 'backward) (= line (line-number-at-pos))) (cons 'remove-matching 0) (cons 'relative 0))))) ;; else is a special case; if its matching block token is on the same line, ;; instead of removing the matching token, it has to replace it, so that ;; either the next line will be indented correctly, or the end on the same ;; line will remove the effect of the else. ((string-equal found-token "else") (save-excursion (let ((line (line-number-at-pos))) (if (and (lua-goto-matching-block-token found-pos 'backward) (= line (line-number-at-pos))) (cons 'replace-matching (cons 'relative lua-indent-level)) (cons 'relative lua-indent-level))))) ;; Block closers. If they are on the same line as their openers, they simply ;; eat up the matching indentation modifier. Otherwise, they pull ;; indentation back to the matching block opener. ((member found-token (list ")" "}" "]" "end")) (save-excursion (let ((line (line-number-at-pos))) (lua-goto-matching-block-token found-pos 'backward) (if (/= line (line-number-at-pos)) (lua-calculate-indentation-info (point)) (cons 'remove-matching 0))))) ;; Everything else. This is from the original code: If opening a block ;; (match-data 1 exists), then push indentation one level up, if it is ;; closing a block, pull it one level down. ('other-indentation-modifier (cons 'relative (if (nth 2 (match-data)) ;; beginning of a block matched lua-indent-level ;; end of a block matched (- lua-indent-level)))))) (defun lua-add-indentation-info-pair (pair info) "Add the given indentation info pair to the list of indentation information. This function has special case handling for two tokens: remove-matching, and replace-matching. These two tokens are cleanup tokens that remove or alter the effect of a previously recorded indentation info. When a remove-matching token is encountered, the last recorded info, i.e. the car of the list is removed. This is used to roll-back an indentation of a block opening statement when it is closed. When a replace-matching token is seen, the last recorded info is removed, and the cdr of the replace-matching info is added in its place. This is used when a middle-of the block (the only case is 'else') is seen on the same line the block is opened." (cond ( (eq 'remove-matching (car pair)) ; Remove head of list (cdr info)) ( (eq 'replace-matching (car pair)) ; remove head of list, and add the cdr of pair instead (cons (cdr pair) (cdr info))) ( (listp (cdr-safe pair)) (nconc pair info)) ( t ; Just add the pair (cons pair info)))) (defun lua-calculate-indentation-info-1 (indentation-info bound) "Helper function for `lua-calculate-indentation-info'. Return list of indentation modifiers from point to BOUND." (while (lua-find-regexp 'forward lua-indentation-modifier-regexp bound) (let ((found-token (match-string 0)) (found-pos (match-beginning 0)) (found-end (match-end 0)) (data (match-data))) (setq indentation-info (lua-add-indentation-info-pair (lua-make-indentation-info-pair found-token found-pos) indentation-info)))) indentation-info) (defun lua-calculate-indentation-info (&optional parse-end) "For each block token on the line, computes how it affects the indentation. The effect of each token can be either a shift relative to the current indentation level, or indentation to some absolute column. This information is collected in a list of indentation info pairs, which denote absolute and relative each, and the shift/column to indent to." (let ((combined-line-end (line-end-position)) indentation-info) (while (lua-is-continuing-statement-p) (lua-forward-line-skip-blanks 'back)) ;; calculate indentation modifiers for the line itself (setq indentation-info (list (cons 'absolute (current-indentation)))) (back-to-indentation) (setq indentation-info (lua-calculate-indentation-info-1 indentation-info (min parse-end (line-end-position)))) ;; and do the following for each continuation line before PARSE-END (while (and (eql (forward-line 1) 0) (<= (point) parse-end)) ;; handle continuation lines: (if (lua-is-continuing-statement-p) ;; if it's the first continuation line, add one level (unless (eq (car (car indentation-info)) 'continued-line) (push (cons 'continued-line lua-indent-level) indentation-info)) ;; if it's the first non-continued line, subtract one level (when (eq (car (car indentation-info)) 'continued-line) (pop indentation-info))) ;; add modifiers found in this continuation line (setq indentation-info (lua-calculate-indentation-info-1 indentation-info (min parse-end (line-end-position))))) indentation-info)) (defun lua-accumulate-indentation-info (info) "Accumulates the indentation information previously calculated by lua-calculate-indentation-info. Returns either the relative indentation shift, or the absolute column to indent to." (let ((info-list (reverse info)) (type 'relative) (accu 0)) (mapc (lambda (x) (setq accu (if (eq 'absolute (car x)) (progn (setq type 'absolute) (cdr x)) (+ accu (cdr x))))) info-list) (cons type accu))) (defun lua-calculate-indentation-block-modifier (&optional parse-end) "Return amount by which this line modifies the indentation. Beginnings of blocks add lua-indent-level once each, and endings of blocks subtract lua-indent-level once each. This function is used to determine how the indentation of the following line relates to this one." (let (indentation-info) (save-excursion ;; First go back to the line that starts it all ;; lua-calculate-indentation-info will scan through the whole thing (let ((case-fold-search nil)) (setq indentation-info (lua-accumulate-indentation-info (lua-calculate-indentation-info parse-end))))) (if (eq (car indentation-info) 'absolute) (- (cdr indentation-info) (current-indentation)) (cdr indentation-info)))) (eval-when-compile (defconst lua--function-name-rx '(seq symbol-start (+ (any alnum "_")) (* "." (+ (any alnum "_"))) (? ":" (+ (any alnum "_"))) symbol-end) "Lua function name regexp in `rx'-SEXP format.")) (defconst lua--left-shifter-regexp (eval-when-compile (rx ;; This regexp should answer the following questions: ;; 1. is there a left shifter regexp on that line? ;; 2. where does block-open token of that left shifter reside? ;; ;; NOTE: couldn't use `group-n' keyword of `rx' macro, because it was ;; introduced in Emacs 24.2 only, so for the sake of code clarity the named ;; groups don't really match anything, they just report the position of the ;; match. (or (seq (regexp "\\_")) (seq (eval lua--function-name-rx) (* blank) (regexp "\\(?1:\\)[{(]")) (seq (or ;; assignment statement prefix (seq (* nonl) (not (any "<=>~")) "=" (* blank)) ;; return statement prefix (seq word-start "return" word-end (* blank))) (regexp "\\(?1:\\)") ;; right hand side (or "{" "function" (seq (eval lua--function-name-rx) (* blank) (regexp "\\(?1:\\)") (any "({"))))))) "Regular expression that matches left-shifter expression. Left-shifter expression is defined as follows. If a block follows a left-shifter expression, its contents & block-close token should be indented relative to left-shifter expression indentation rather then to block-open token. For example: -- 'local a = ' is a left-shifter expression -- 'function' is a block-open token local a = function() -- block contents is indented relative to left-shifter foobarbaz() -- block-end token is unindented to left-shifter indentation end The following left-shifter expressions are currently handled: 1. local function definition with function block, begin-end 2. function call with arguments block, () or {} 3. assignment/return statement with - table constructor block, {} - function call arguments block, () or {} block - function expression a.k.a. lambda, begin-end block.") (defun lua-point-is-after-left-shifter-p () "Check if point is right after a left-shifter expression. See `lua--left-shifter-regexp' for description & example of left-shifter expression. " (save-excursion (let ((old-point (point))) (back-to-indentation) (and (/= (point) old-point) (looking-at lua--left-shifter-regexp) (= old-point (match-end 1)))))) (defun lua-calculate-indentation-override (&optional parse-start) "Return overriding indentation amount for special cases. If there's a sequence of block-close tokens starting at the beginning of the line, calculate indentation according to the line containing block-open token for the last block-close token in the sequence. If not, return nil." (let (case-fold-search token-info block-token-pos) (save-excursion (if parse-start (goto-char parse-start)) (back-to-indentation) (unless (lua-comment-or-string-p) (while (and (looking-at lua-indentation-modifier-regexp) (setq token-info (lua-get-block-token-info (match-string 0))) (not (eq 'open (lua-get-token-type token-info)))) (setq block-token-pos (match-beginning 0)) (goto-char (match-end 0)) (skip-syntax-forward " " (line-end-position))) (when (lua-goto-matching-block-token block-token-pos 'backward) ;; Exception cases: when the start of the line is an assignment, ;; go to the start of the assignment instead of the matching item (if (lua-point-is-after-left-shifter-p) (current-indentation) (current-column))))))) (defun lua-calculate-indentation (&optional parse-start) "Return appropriate indentation for current line as Lua code." (save-excursion (let ((continuing-p (lua-is-continuing-statement-p)) (cur-line-begin-pos (line-beginning-position))) (or ;; when calculating indentation, do the following: ;; 1. check, if the line starts with indentation-modifier (open/close brace) ;; and if it should be indented/unindented in special way (lua-calculate-indentation-override) (when (lua-forward-line-skip-blanks 'back) ;; the order of function calls here is important. block modifier ;; call may change the point to another line (let* ((modifier (lua-calculate-indentation-block-modifier cur-line-begin-pos))) (+ (current-indentation) modifier))) ;; 4. if there's no previous line, indentation is 0 0)))) (defvar lua--beginning-of-defun-re (lua-rx-to-string '(: bol (? (symbol "local") ws+) lua-funcheader)) "Lua top level (matches only at the beginning of line) function header regex.") (defun lua-beginning-of-proc (&optional arg) "Move backward to the beginning of a lua proc (or similar). With argument, do it that many times. Negative arg -N means move forward to Nth following beginning of proc. Returns t unless search stops due to beginning or end of buffer." (interactive "P") (or arg (setq arg 1)) (while (and (> arg 0) (re-search-backward lua--beginning-of-defun-re nil t)) (setq arg (1- arg))) (while (and (< arg 0) (re-search-forward lua--beginning-of-defun-re nil t)) (beginning-of-line) (setq arg (1+ arg))) (zerop arg)) (defun lua-end-of-proc (&optional arg) "Move forward to next end of lua proc (or similar). With argument, do it that many times. Negative argument -N means move back to Nth preceding end of proc. This function just searches for a `end' at the beginning of a line." (interactive "P") (or arg (setq arg 1)) (let ((found nil) (ret t)) (if (and (< arg 0) (not (bolp)) (save-excursion (beginning-of-line) (eq (following-char) ?}))) (forward-char -1)) (while (> arg 0) (if (re-search-forward "^end" nil t) (setq arg (1- arg) found t) (setq ret nil arg 0))) (while (< arg 0) (if (re-search-backward "^end" nil t) (setq arg (1+ arg) found t) (setq ret nil arg 0))) (if found (progn (beginning-of-line) (forward-line))) ret)) (defvar lua-process-init-code (mapconcat 'identity '("local loadstring = loadstring or load" "function luamode_loadstring(str, displayname, lineoffset)" " if lineoffset > 1 then" " str = string.rep('\\n', lineoffset - 1) .. str" " end" "" " x, e = loadstring(str, '@'..displayname)" " if e then" " error(e)" " end" " return x()" "end") " ")) (defun lua-make-lua-string (str) "Convert string to Lua literal." (save-match-data (with-temp-buffer (insert str) (goto-char (point-min)) (while (re-search-forward "[\"'\\\n]" nil t) (if (string= (match-string 0) "\n") (replace-match "\\\\n") (replace-match "\\\\\\&" t))) (concat "'" (buffer-string) "'")))) ;;;###autoload (defalias 'run-lua #'lua-start-process) ;;;###autoload (defun lua-start-process (&optional name program startfile &rest switches) "Start a lua process named NAME, running PROGRAM. PROGRAM defaults to NAME, which defaults to `lua-default-application'. When called interactively, switch to the process buffer." (interactive) (or switches (setq switches lua-default-command-switches)) (setq name (or name lua-default-application)) (setq program (or program name)) (setq lua-process-buffer (apply 'make-comint name program startfile switches)) (setq lua-process (get-buffer-process lua-process-buffer)) (set-process-query-on-exit-flag lua-process nil) (with-current-buffer lua-process-buffer ;; wait for prompt (while (not (lua-prompt-line)) (accept-process-output (get-buffer-process (current-buffer))) (goto-char (point-max))) ;; send initialization code (lua-send-string lua-process-init-code) ;; enable error highlighting in stack traces (require 'compile) (setq lua--repl-buffer-p t) (make-local-variable 'compilation-error-regexp-alist) (setq compilation-error-regexp-alist (cons (list lua-traceback-line-re 1 2) ;; Remove 'gnu entry from error regexp alist, it somehow forces ;; leading TAB to be recognized as part of filename in Emacs23. (delq 'gnu compilation-error-regexp-alist))) (compilation-shell-minor-mode 1)) ;; when called interactively, switch to process buffer (if (called-interactively-p 'any) (switch-to-buffer lua-process-buffer))) (defun lua-get-create-process () "Return active Lua process creating one if necessary." (or (and (comint-check-proc lua-process-buffer) lua-process) (lua-start-process)) lua-process) (defun lua-kill-process () "Kill Lua subprocess and its buffer." (interactive) (when (buffer-live-p lua-process-buffer) (kill-buffer lua-process-buffer))) (defun lua-set-lua-region-start (&optional arg) "Set start of region for use with `lua-send-lua-region'." (interactive) (set-marker lua-region-start (or arg (point)))) (defun lua-set-lua-region-end (&optional arg) "Set end of region for use with `lua-send-lua-region'." (interactive) (set-marker lua-region-end (or arg (point)))) (defun lua-send-string (str) "Send STR plus a newline to Lua subprocess. If `lua-process' is nil or dead, start a new process first." (unless (string-equal (substring str -1) "\n") (setq str (concat str "\n"))) (process-send-string (lua-get-create-process) str)) (defun lua-send-current-line () "Send current line to Lua subprocess, found in `lua-process'. If `lua-process' is nil or dead, start a new process first." (interactive) (lua-send-region (line-beginning-position) (line-end-position))) (defun lua-send-defun (pos) "Send the function definition around point to lua subprocess." (interactive "d") (save-excursion (let ((start (if (save-match-data (looking-at "^function[ \t]")) ;; point already at the start of "function". ;; We need to handle this case explicitly since ;; lua-beginning-of-proc will move to the ;; beginning of the _previous_ function. (point) ;; point is not at the beginning of function, move ;; there and bind start to that position (lua-beginning-of-proc) (point))) (end (progn (lua-end-of-proc) (point)))) ;; make sure point is in a function defintion before sending to ;; the subprocess (if (and (>= pos start) (< pos end)) (lua-send-region start end) (error "Not on a function definition"))))) (defun lua-maybe-skip-shebang-line (start) "Skip shebang (#!/path/to/interpreter/) line at beginning of buffer. Return a position that is after Lua-recognized shebang line (1st character in file must be ?#) if START is at its beginning. Otherwise, return START." (save-restriction (widen) (if (and (eq start (point-min)) (eq (char-after start) ?#)) (save-excursion (goto-char start) (forward-line) (point)) start))) (defun lua-send-region (start end) (interactive "r") (setq start (lua-maybe-skip-shebang-line start)) (let* ((lineno (line-number-at-pos start)) (lua-file (or (buffer-file-name) (buffer-name))) (region-str (buffer-substring-no-properties start end)) (command ;; Print empty line before executing the code so that the first line ;; of output doesn't end up on the same line as current prompt. (format "print(''); luamode_loadstring(%s, %s, %s);\n" (lua-make-lua-string region-str) (lua-make-lua-string lua-file) lineno))) (lua-send-string command) (when lua-always-show (lua-show-process-buffer)))) (defun lua-prompt-line () (save-excursion (save-match-data (forward-line 0) (if (looking-at comint-prompt-regexp) (match-end 0))))) (defun lua-send-lua-region () "Send preset lua region to lua subprocess." (interactive) (unless (and lua-region-start lua-region-end) (error "lua-region not set")) (lua-send-region lua-region-start lua-region-end)) (defalias 'lua-send-proc 'lua-send-defun) (defun lua-send-buffer () "Send whole buffer to lua subprocess." (interactive) (lua-send-region (point-min) (point-max))) (defun lua-restart-with-whole-file () "Restart lua subprocess and send whole file as input." (interactive) (lua-kill-process) (lua-send-buffer)) (defun lua-show-process-buffer () "Make sure `lua-process-buffer' is being displayed. Create a Lua process if one doesn't already exist." (interactive) (display-buffer (process-buffer (lua-get-create-process)))) (defun lua-hide-process-buffer () "Delete all windows that display `lua-process-buffer'." (interactive) (when (buffer-live-p lua-process-buffer) (delete-windows-on lua-process-buffer))) (defun lua-funcname-at-point () "Get current Name { '.' Name } sequence." ;; FIXME: copying/modifying syntax table for each call may incur a penalty (with-syntax-table (copy-syntax-table) (modify-syntax-entry ?. "_") (current-word t))) (defun lua-search-documentation () "Search Lua documentation for the word at the point." (interactive) (let ((url (concat lua-documentation-url "#pdf-" (lua-funcname-at-point)))) (funcall lua-documentation-function url))) (defun lua-toggle-electric-state (&optional arg) "Toggle the electric indentation feature. Optional numeric ARG, if supplied, turns on electric indentation when positive, turns it off when negative, and just toggles it when zero or left out." (interactive "P") (let ((num_arg (prefix-numeric-value arg))) (setq lua-electric-flag (cond ((or (null arg) (zerop num_arg)) (not lua-electric-flag)) ((< num_arg 0) nil) ((> num_arg 0) t)))) (message "%S" lua-electric-flag)) (defun lua-forward-sexp (&optional count) "Forward to block end" (interactive "p") ;; negative offsets not supported (assert (or (not count) (>= count 0))) (save-match-data (let* ((count (or count 1)) (block-start (mapcar 'car lua-sexp-alist)) (block-end (mapcar 'cdr lua-sexp-alist)) (block-regex (regexp-opt (append block-start block-end) 'words)) current-exp) (while (> count 0) ;; skip whitespace (skip-chars-forward " \t\n") (if (looking-at (regexp-opt block-start 'words)) (let ((keyword (match-string 1))) (lua-find-matching-token-word keyword 'forward)) ;; If the current keyword is not a "begin" keyword, then just ;; perform the normal forward-sexp. (forward-sexp 1)) (setq count (1- count)))))) ;; menu bar (define-key lua-mode-menu [restart-with-whole-file] '("Restart With Whole File" . lua-restart-with-whole-file)) (define-key lua-mode-menu [kill-process] '("Kill Process" . lua-kill-process)) (define-key lua-mode-menu [hide-process-buffer] '("Hide Process Buffer" . lua-hide-process-buffer)) (define-key lua-mode-menu [show-process-buffer] '("Show Process Buffer" . lua-show-process-buffer)) (define-key lua-mode-menu [end-of-proc] '("End Of Proc" . lua-end-of-proc)) (define-key lua-mode-menu [beginning-of-proc] '("Beginning Of Proc" . lua-beginning-of-proc)) (define-key lua-mode-menu [send-lua-region] '("Send Lua-Region" . lua-send-lua-region)) (define-key lua-mode-menu [set-lua-region-end] '("Set Lua-Region End" . lua-set-lua-region-end)) (define-key lua-mode-menu [set-lua-region-start] '("Set Lua-Region Start" . lua-set-lua-region-start)) (define-key lua-mode-menu [send-current-line] '("Send Current Line" . lua-send-current-line)) (define-key lua-mode-menu [send-region] '("Send Region" . lua-send-region)) (define-key lua-mode-menu [send-proc] '("Send Proc" . lua-send-proc)) (define-key lua-mode-menu [send-buffer] '("Send Buffer" . lua-send-buffer)) (define-key lua-mode-menu [search-documentation] '("Search Documentation" . lua-search-documentation)) (provide 'lua-mode) ;;; lua-mode.el ends here lua-mode-20151025/test/000077500000000000000000000000001261314555500144445ustar00rootroot00000000000000lua-mode-20151025/test/.nosearch000066400000000000000000000000001261314555500162350ustar00rootroot00000000000000lua-mode-20151025/test/test-electric-mode.el000066400000000000000000000055161261314555500204660ustar00rootroot00000000000000;; -*- flycheck-disabled-checkers: (emacs-lisp-checkdoc) -*- (load (concat (file-name-directory (or load-file-name (buffer-file-name) default-directory)) "utils.el") nil 'nomessage 'nosuffix) (require 'lua-mode) (describe "Test electric mode" (it "works with curly braces" (with-lua-buffer (lua--setq-local blink-matching-paren nil) (make-local-variable 'electric-indent-mode) (electric-indent-mode 1) (execute-kbd-macro (kbd "return SPC foo SPC { M-j")) (execute-kbd-macro (kbd "'baz' M-j")) (expect (current-indentation) :to-be lua-indent-level) (execute-kbd-macro (kbd "}")) (expect (current-indentation) :to-be 0))) (it "works with parentheses" (with-lua-buffer (lua--setq-local blink-matching-paren nil) (make-local-variable 'electric-indent-mode) (electric-indent-mode 1) (execute-kbd-macro (kbd "return SPC foo SPC ( M-j")) (execute-kbd-macro (kbd "'baz' M-j")) (should (eq (current-indentation) lua-indent-level)) (execute-kbd-macro (kbd ")")) (should (eq (current-indentation) 0)))) (it "works with end" (with-lua-buffer (execute-kbd-macro (kbd "if SPC foo SPC then M-j")) (execute-kbd-macro (kbd "'baz' M-j")) (should (eq (current-indentation) lua-indent-level)) (abbrev-mode 1) (execute-kbd-macro (kbd "end M-j")) (beginning-of-line 0) (should (eq (current-indentation) 0)))) (it "works with else" (with-lua-buffer (execute-kbd-macro (kbd "if SPC foo SPC then M-j")) (execute-kbd-macro (kbd "'baz' M-j")) (should (eq (current-indentation) lua-indent-level)) (abbrev-mode 1) (execute-kbd-macro (kbd "else M-j")) (beginning-of-line 0) (should (eq (current-indentation) 0)))) (it "works with elseif" (with-lua-buffer (execute-kbd-macro (kbd "if SPC foo SPC then")) (newline-and-indent) (execute-kbd-macro (kbd "'baz'")) (newline-and-indent) (should (eq (current-indentation) lua-indent-level)) (abbrev-mode 1) (execute-kbd-macro (kbd "elseif")) (newline-and-indent) (beginning-of-line 0) (should (eq (current-indentation) 0))))) (when (fboundp 'electric-pair-mode) (describe "Electric pair mode" (it "skips parens when electric-pair-skip-self is t" (let ((old-mode (if electric-pair-mode 1 0))) (unwind-protect (with-lua-buffer (lua--setq-local blink-matching-paren nil) (lua--setq-local electric-pair-skip-self t) (lua--setq-local lua-electric-flag t) (electric-pair-mode 1) (execute-kbd-macro "(") (should (string= (buffer-string) "()")) (execute-kbd-macro ")") (should (string= (buffer-string) "()"))) (electric-pair-mode old-mode)))))) lua-mode-20151025/test/test-fill.el000066400000000000000000000023701261314555500166730ustar00rootroot00000000000000;; -*- flycheck-disabled-checkers: (emacs-lisp-checkdoc) -*- (load (concat (file-name-directory (or load-file-name (buffer-file-name) default-directory)) "utils.el") nil 'nomessage 'nosuffix) (defun expect-filled-as (strs etalon) (expect (lua-buffer-strs (let ((fill-column 10)) (lua-insert-goto-<> strs) (execute-kbd-macro (kbd "M-q")))) :to-equal etalon)) (describe "Test fill-paragraph" (it "filling single-line comment" (expect-filled-as '("<>-- foo bar baz qux") '("-- foo bar" "-- baz qux"))) (it "filling comment after code" (expect-filled-as '("<>foo -- bar baz") '("foo -- bar" " -- baz"))) (xit "filling multiline comment" (expect-filled-as '("<>--[[ foo bar baz ]]") '("--[[ foo bar" " baz ]]"))) (it "does not spill comments into code (issue #25)" (expect-filled-as '("<>" "-- foo bar baz qux" "foo_func()") '("" "-- foo bar" "-- baz qux" "foo_func()")))) lua-mode-20151025/test/test-font-lock.el000066400000000000000000000151011261314555500176350ustar00rootroot00000000000000;; -*- flycheck-disabled-checkers: (emacs-lisp-checkdoc) -*- (load (concat (file-name-directory (or load-file-name (buffer-file-name) default-directory)) "utils.el") nil 'nomessage 'nosuffix) (require 'buttercup) (describe "Fontification of built-ins" (it "fontifies built-ins" (expect "table.sort(foobar)" :to-be-fontified-as '(("table" builtin "sort" builtin)))) (it "fontifies built-ins with spaces between members" (expect "\ table.sort(foobar) table .sort(foobar) table. sort(foobar)" :to-be-fontified-as '(("table" builtin "sort" builtin) ("table" builtin "sort" builtin) ("table" builtin "sort" builtin)))) (it "doesn't fontify things that look like built-ins" (expect "\ foo.table.sort(foobar) foo. table.sort(foobar) foo .table.sort(foobar) foo:table.sort(foobar) foo: table.sort(foobar) foo :table.sort(foobar) _table.sort(foobar) table_.sort(foobar)" :to-be-fontified-as '(nil nil nil nil nil nil nil nil nil))) (it "fontifies built-in class if method is not built-in" (expect "\ table ._sort(foobar) table. sort_(foobar)" :to-be-fontified-as '(("table" builtin) ("table" builtin)))) (it "fontifies built-ins after concatenation operator" (expect "a .. table.concat(foobar, delim)" :to-be-fontified-as '(("table" builtin "concat" builtin))))) (describe "Fontification of constants" (it "fontifies constants" (expect "a = { nil, true, false}" :to-be-fontified-as '(("nil" constant "true" constant "false" constant)))) (it "fontifies constants used as attributes" (expect "a = { nil, true, false}" :to-be-fontified-as '(("nil" constant "true" constant "false" constant))))) (describe "Fontification of keywords" (it "fontifies keywords" (expect "do foo(5) end" :to-be-fontified-as '(("do" keyword "end" keyword))) (expect "_do foo(5) end_" :to-be-fontified-as '(nil)) ) (it "fontifies keywords used as attributes" ;; Hint user that keywords cannot be used like that (expect "foo(5).end" :to-be-fontified-as '(("end" keyword))) (expect "foo(5):end" :to-be-fontified-as '(("end" keyword))))) (describe "Fontification of function headers" (it "fontifies simple headers" (expect ;; Check all defun variants, check embedded defuns "\ function foo() function bar() end local function baz() end qux = function() end local quux = function() end end" :to-be-fontified-as '(("function" keyword "foo" function-name) ("function" keyword "bar" function-name "end" keyword) ("local" keyword "function" keyword "baz" function-name "end" keyword) ("qux" function-name "function" keyword "end" keyword) ("local" keyword "quux" function-name "function" keyword "end" keyword) ("end" keyword)))) (it "fontifies headers inside tables" (expect "\ somefunc { function() end, foobar = function() end, [\"quxquux\"] = function() end }" :to-be-fontified-as '(nil ("function" keyword "end" keyword) ("foobar" function-name "function" keyword "end" keyword) ("\"quxquux\"" string "function" keyword "end" keyword) nil))) (it "does not fail on issue #59 again" (expect "\ local foo = function() ; end -- and local function foo() ; end" :to-be-fontified-as '(("local" keyword "foo" function-name "function" keyword) nil ("end" keyword) ("-- " comment-delimiter "and" comment) ("local" keyword "function" keyword "foo" function-name) nil ("end" keyword)))) (it "does not choke on function names with underscores" (expect ;; Check all defun variants, check embedded defuns "\ function foo() function bar_bar() end local function baz_baz() end qux_qux = function() end local quux_quux = function() end end" :to-be-fontified-as '(("function" keyword "foo" function-name) ("function" keyword "bar_bar" function-name "end" keyword) ("local" keyword "function" keyword "baz_baz" function-name "end" keyword) ("qux_qux" function-name "function" keyword "end" keyword) ("local" keyword "quux_quux" function-name "function" keyword "end" keyword) ("end" keyword))))) (describe "Fontification of goto labels" (it "fontifies simple goto labels" (expect "\ goto foo ::foo::" :to-be-fontified-as '(("goto" keyword "foo" constant) ("::foo::" constant)))) (it "fontifies ::labels:: written after code" (expect "\ local foo = 'test' ::f12o:: goto f12o" :to-be-fontified-as '(("local" keyword "foo" variable-name "'test'" string "::f12o::" constant) ("goto" keyword "f12o" constant)))) (it "fontifies labels with spaces before and after \"::\"" ;; With spaces after and before "::" (expect ":: foo ::" :to-be-fontified-as '((":: foo ::" constant)))) ;; Don't font lock labels when substring "goto" appears as a suffix ;; of another variable (it "does not fontify after symbols ending with \"goto\"" (expect "JUNKgoto foo" :to-be-fontified-as '(nil)))) (describe "Fontification of LuaDoc keywords" (it "works" (expect "\ -- @author foo baz -- @copyright foo baz -- @field foo baz -- @param foo baz -- @release foo baz -- @return foo baz -- @see foo baz -- @usage foo baz -- @class foo baz -- @description foo baz -- @name foo baz" :to-be-fontified-as '(("-- " comment-delimiter "@author" keyword " foo baz" comment) ("-- " comment-delimiter "@copyright" keyword " foo baz" comment) ("-- " comment-delimiter "@field" keyword " foo baz" comment) ("-- " comment-delimiter "@param" keyword " " comment "foo" variable-name " baz" comment) ("-- " comment-delimiter "@release" keyword " foo baz" comment) ("-- " comment-delimiter "@return" keyword " foo baz" comment) ("-- " comment-delimiter "@see" keyword " foo baz" comment) ("-- " comment-delimiter "@usage" keyword " foo baz" comment) ("-- " comment-delimiter "@class" keyword " " comment "foo" variable-name " baz" comment) ("-- " comment-delimiter "@description" keyword " foo baz" comment) ("-- " comment-delimiter "@name" keyword " " comment "foo" variable-name " baz" comment))))) lua-mode-20151025/test/test-generic.el000066400000000000000000000042261261314555500173630ustar00rootroot00000000000000;; -*- flycheck-disabled-checkers: (emacs-lisp-checkdoc) -*- (load (concat (file-name-directory (or load-file-name (buffer-file-name) default-directory)) "utils.el") nil 'nomessage 'nosuffix) (describe "lua-forward-sexp" (it "properly scans through curly braces" (with-lua-buffer (lua-insert-goto-<> '("local x = <>function() return {{}} end" "" "function foobar() end")) (lua-forward-sexp) (expect (looking-back (rx "x = function() return {{}} end") (line-beginning-position))))) (it "scans through then .. end block" (with-lua-buffer (lua-insert-goto-<> '("if foo <>then" " return bar" "--[[end here]] end")) (lua-forward-sexp) (expect (looking-back (rx "--[[end here]] end") (line-beginning-position)))))) (describe "Check that beginning-of-defun works with " (it "handles differed function headers" (with-lua-buffer (lua-insert-goto-<> '("function foobar()" "<>" "end")) (beginning-of-defun) (expect (looking-at (rx "function foobar()")))) (with-lua-buffer (lua-insert-goto-<> '("local function foobar()" "<>" "end")) (beginning-of-defun) (expect (looking-at "local function foobar()"))) (with-lua-buffer (lua-insert-goto-<> '("local foobar = function()" "<>" "end")) (beginning-of-defun) (expect (looking-at (rx "local foobar = function()")))) (with-lua-buffer (lua-insert-goto-<> '("foobar = function()" "<>" "end")) (beginning-of-defun) (expect (looking-at (rx "foobar = function()"))))) (it "accepts dots and colons" (with-lua-buffer (lua-insert-goto-<> '("foo.bar = function (x,y,z)" "<>" "end")) (beginning-of-defun) (expect (looking-at (rx "foo.bar = function (x,y,z)")))) (with-lua-buffer (lua-insert-goto-<> '("function foo.bar:baz (x,y,z)" "<>" "end")) (beginning-of-defun) (expect (looking-at (rx "function foo.bar:baz (x,y,z)")))))) lua-mode-20151025/test/test-indentation.el000066400000000000000000000247061261314555500202700ustar00rootroot00000000000000;; -*- flycheck-disabled-checkers: (emacs-lisp-checkdoc) -*- (load (concat (file-name-directory (or load-file-name (buffer-file-name) default-directory)) "utils.el") nil 'nomessage 'nosuffix) (describe "Assignment indentation" (it "is sane" (lua--reindent-like "\ foo = 10 bar = 20")) (it "adds continuation before =" (lua--reindent-like "\ foo = 10 bar = 20")) (it "adds continuation after =" (lua--reindent-like "\ foo = 10 bar = 20")) ;; (ert-deftest lua-indentation-assignment-with-commas () ;; (lua--reindent-like "\ ;; foo, ;; baz = 10, 20 ;; bar = 20") ;; (lua--reindent-like "\ ;; foo, baz ;; = 10, 20 ;; bar = 20") ;; (lua--reindent-like "\ ;; foo, baz = 10, ;; 20 ;; bar = 20") ;; (lua--reindent-like "\ ;; foo, ;; baz = ;; 10, 20") ;; (lua--reindent-like "\ ;; foo, baz = ;; 10, ;; 20 ;; bar = 20") ;; (lua--reindent-like "\ ;; local ;; x = 5") ;; (lua--reindent-like "\ ;; local ;; x, ;; y = 10, 20") ;; (lua--reindent-like "\ ;; local ;; x, ;; y = ;; 10, ;; 20")) (it "does not accumulate indentation after the expression (issue #33)" (lua--reindent-like "\ a = { } b = { }, a = { table_elt_indented } a = a + 5 + 10 this_should_be_unindented() -- here foobar should be indented as simple continuation statement a = a + dosmth( ) + foobar a = do_smth( do_smth_arg ) b = { table_elt0_indented, table_elt1_indented } this_should_be_unindented_too = { } this_should_be_unindented_three = etc"))) (describe "Continuation lines" (it "are indented if broken in the middle of \"foo.bar\" and \"qux:quux\"" (lua--reindent-like "\ foo123 .bar:baz(xyz)") (lua--reindent-like "\ foo123. bar:baz(xyz)") (lua--reindent-like "\ foo123.bar :baz(xyz)") (lua--reindent-like "\ foo123.bar: baz(xyz)") (lua--reindent-like "\ foo123.bar .baz .qux :quux(xyz)")) (it "are indented after return" (expect (lua--reindent-like "\ return 123")) (expect (lua--reindent-like "\ do return 123 end")) (expect (lua--reindent-like "\ do return x + y end"))) (it "are not indented if \"return\" returns no values" (expect (lua--reindent-like "\ do return end foo = bar")) (expect (lua--reindent-like "\ if foo == bar then return else foo = bar end")) (expect (lua--reindent-like "\ if foo == bar then return elseif foo != bar then foo = bar end")) (expect (lua--reindent-like "\ repeat return until foo == bar"))) (it "are indented before/after binary operators" (let ((binops '("+" "-" "*" "/" "^" "%" ".." "<" "<=" ">" ">=" "==" "~=" "and" "or"))) (cl-dolist (binop binops) (lua--reindent-like (replace-regexp-in-string "BINOP" binop "\ a = foo BINOP bar" 'fixedcase)) (lua--reindent-like (replace-regexp-in-string "BINOP" binop "\ a = foo BINOP bar" 'fixedcase))))) (it "are not indented after ellipsis" (lua--reindent-like "\ function x(...) a, b = 1, ... return b end")) (xit "are indented before/after unary operators" (expect (lua--reindent-like "\ foo = bar -#some_str")) (cl-dolist (unop '("-" "#" "not ")) (expect (lua--reindent-like (replace-regexp-in-string "<>" unop "\ foobar(qux, <>quux)"))) (expect (lua--reindent-like (replace-regexp-in-string "<>" unop "\ foobar(qux, xyzzy <>quux)"))) (expect (lua--reindent-like (replace-regexp-in-string "<>" unop "\ foobar( <>quux)"))) (expect (lua--reindent-like (replace-regexp-in-string "<>" unop "\ x = {qux, <>quux}"))) (expect (lua--reindent-like (replace-regexp-in-string "<>" unop "\ x = {qux; <>quux}"))) (expect (lua--reindent-like (replace-regexp-in-string "<>" unop "\ x = {qux, xyzzy <>quux}"))) (expect (lua--reindent-like (replace-regexp-in-string "<>" unop "\ x = { <>quux }"))))) (it "indents function call arguments in continuation part" (expect (lua--reindent-like "\ x = foo(123, 456) + bar( qux, quux)"))) (xit "are indented in block-intros" (expect (lua--reindent-like "\ while foo do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ for k, v in pairs(bar) do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ for k, v in pairs(bar) do a = a + 1 end a = 0")))) (describe "Block indentation" (it "works for do ... end blocks" ;; FIXME: test split block-intro indentations (expect (lua--reindent-like "\ do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ do a = a + 1 end a = 0"))) (it "works for while ... do ... end blocks" (expect (lua--reindent-like "\ while foo do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ while foo do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ while foo do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ while foo do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ while x + y > 0 do a = a + 1 end a = 0"))) (it "works for repeat ... until blocks" (expect (lua--reindent-like "\ repeat a = a + 1 until foo a = 0")) (expect (lua--reindent-like "\ repeat a = a + 1 until foo a = 0")) (expect (lua--reindent-like "\ repeat a = a + 1 until not foo a = 0")) (expect (lua--reindent-like "\ repeat a = a + 1 until not foo a = 0"))) (it "works for \"for ... do\" block " (expect (lua--reindent-like "\ for k, v in pairs(bar) do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ for k, v in pairs(bar) do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ for k, v in pairs(bar) do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ for y = 0, 10 do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ for y = 0, 10 do a = a + 1 end a = 0")) (expect (lua--reindent-like "\ for y = 0, 10 do a = a + 1 end a = 0"))) (it "works for conditionals" (expect (lua--reindent-like "\ if foo then a = a + 1 end a = 0")) (expect (lua--reindent-like "\ if foo then a = a + 1 end a = 0")) (expect (lua--reindent-like "\ if foo then a = a + 1 else a = a + 2 end a = 0")) (expect (lua--reindent-like "\ if foo then a = a + 1 elseif bar then a = a + 2 elseif baz then a = a + 3 end a = 0")) (expect (lua--reindent-like "\ if foo then a = a + 1 else a = a + 2 end")))) (describe "Function indentation" (it "indents function call arguments" (expect (lua--reindent-like "\ foobar( a, b, c)")) (expect (lua--reindent-like "\ foobar( a, b, c)")) (expect (lua--reindent-like "\ foobar( a, b, c )")) (expect (lua--reindent-like "\ foobar(a, b, c)")) (expect (lua--reindent-like "\ foobar{ a, b, c }"))) (xit "indents nested tables" (expect (lua--reindent-like "\ foobar({ a, b, c })")) (expect (lua--reindent-like "\ foobar(a, { b, c })")) (expect (lua--reindent-like "\ foobar( a, { b, c })")) (expect (lua--reindent-like "\ foobar(a, { b, c })")) (expect (lua--reindent-like "\ foobar(a, { b, c } )")) (expect (lua--reindent-like "\ foobar( { a, b }, c, d )")))) (ert-deftest lua-indentation-defun () ;; [local] function funcname funcbody ;; FIXME: add ) (ert-deftest lua-indentation-alignment () ;; FIXME: add ) (ert-deftest lua-indentation-tablector () ;; FIXME: add ) (ert-deftest lua-indentation-continuation-spans-over-empty-lines () ;; FIXME: add ;; FIXME: check comment-only lines too ) (ert-deftest lua-indentation-keywords-with-special-characters () (expect (lua--reindent-like "\ do foobar = _do end"))) (describe "Goto label indentation" (it "is sane" (expect (lua--reindent-like "\ ::foo:: ::bar:: ::baz:: a = 0"))) (it "does not affect indentation when put on a separate line" (expect (lua--reindent-like "\ for z=1,10 do ::foo:: bar end a = 0"))) (xit "does not affect indentation before block modifiers" (expect (lua--reindent-like "\ ::foo:: for z=1,10 do bar end a = 0"))) (it "does not affect indentation after block modifiers" (expect (lua--reindent-like "\ for z=1,10 do ::foo:: bar end a = 0"))) (it "reindents according to luawiki examples" (expect (lua--reindent-like "\ for z=1,10 do ::foo:: for y=1,10 do ::bar for x=1,10 do if x^2 + y^2 == z^2 then print('found a Pythagorean triple:', x, y, z) goto done goto done2 end end ::done2:: end end ::done::")) (expect (lua--reindent-like "\ -- 5.2.0-beta-rc2 for z=1,10 do for y=1,10 do for x=1,10 do if x^2 + y^2 == z^2 then print('found a Pythagorean triple:', x, y, z) print('now trying next z...') goto zcontinue end end end ::zcontinue:: end")) (expect (lua--reindent-like "\ -- Lua 5.2.0-beta-rc2 for x=1,5 do ::redo:: print(x .. ' + 1 = ?') local y = tonumber(io.read'*l') if y ~= x + 1 then goto redo end end")) (expect (lua--reindent-like "\ -- 5.2.0-beta-rc1 ::a:: print 'A' if math.random() < 0.3 then goto c end ::b:: print 'B' if math.random() < 0.5 then goto a end ::c:: print 'C' if math.random() < 0.1 then goto a else goto b end ")) (expect (lua--reindent-like "\ -- 5.2.0-beta-rc2 - factorial with tail recursion simulated with goto's -- (warning: there's no need to do this) function fact_(n, ans) ::call:: if n == 0 then return ans else n, ans = n - 1, ans * n goto call end end print(fact_(5, 1)) --> 120")) (expect (lua--reindent-like "\ -- 5.2.0-beta-rc2 function f() if not g() then goto fail end if not h() then goto cleanup_g end if not i() then goto cleanup_h end do return true end -- need do/end? ::cleanup_h:: undo_h() ::cleanup_g:: undo_g() ::fail:: return false end")) (expect (lua--reindent-like "\ -- 5.2.0-beta-rc2 ::redo:: for x=1,10 do for y=1,10 do if not f(x,y) then goto continue end if not g(x,y) then goto skip end if not h(x,y) then goto redo end ::continue:: end end ::skip:: print('foo')")))) lua-mode-20151025/test/test-inferior-process.el000066400000000000000000000126101261314555500212340ustar00rootroot00000000000000;; -*- flycheck-disabled-checkers: (emacs-lisp-checkdoc) -*- (load (concat (file-name-directory (or load-file-name (buffer-file-name) default-directory)) "utils.el") nil 'nomessage 'nosuffix) (require 'cl-lib) (describe "Hiding process buffer does not switch current window" (it "when process is active" (with-lua-buffer (let ((cur-buf (current-buffer))) (expect (get-buffer-window cur-buf)) (lua-start-process) (lua-hide-process-buffer) (expect (get-buffer-window cur-buf))))) (it "and does not signal when process is already killed" (with-lua-buffer (let ((cur-buf (current-buffer))) (lua-start-process) (lua-kill-process) (lua-hide-process-buffer) (expect (get-buffer-window cur-buf))))) (it "when process is not started" (with-lua-buffer (let ((cur-buf (current-buffer))) (expect lua-process-buffer :to-be nil) (lua-hide-process-buffer) (expect (get-buffer-window cur-buf)))))) (require 'compile) (if (fboundp 'compilation--loc->file-struct) (defun get-error-file (err-info) (caar (compilation--loc->file-struct (compilation--message->loc (compilation-next-error 0))))) (defun get-error-file (err-info) (caar (nth 2 (car err-info))))) (describe "Fontification in compilation buffer" (xit "fontifies runtime error messages" (with-lua-buffer (insert "\ function bar() error(123) end function foo() bar() end ") (rename-buffer "test-send-runtime-error.lua" 'unique) ;; By default non-nil compilation-message-face is appended to ;; compilation-error faces, let's simplify the checks. (let ((compilation-message-face nil)) (lua-send-buffer) (lua-send-string "foo()") ;; Make sure to wait enough to get all the output from the subprocess. (while (accept-process-output lua-process 0 200)) (with-current-buffer lua-process-buffer (expect (get-buffer-line-faces) :to-equal '(nil ;; motd line (not highlighted) nil ;; first prompt (also not highlighted) ("test-send-runtime-error.lua" compilation-error "2" compilation-line-number) ;; error message nil ;; stack traceback nil ;; in function error ("test-send-runtime-error.lua" compilation-error "2" compilation-line-number) ;; in 'bar' ("test-send-runtime-error.lua" compilation-error "6" compilation-line-number) ;; in 'foo' ("stdin" compilation-error "1" compilation-line-number) nil ;; in main chunk nil)))))) (xit "fontifies syntax error messages" (with-lua-buffer (rename-buffer "test-send-syntax-error.lua") (insert "\ function () end ") ;; By default non-nil compilation-message-face is appended to ;; compilation-error faces, let's simplify the checks. (let ((compilation-message-face nil)) (lua-send-buffer) (while (accept-process-output lua-process 0 200)) (with-current-buffer lua-process-buffer (expect (get-buffer-line-faces) :to-equal '(nil ;; motd line, no highlight nil ;; first prompt, also no highlight (;; "stdin" is being highlighted here because compilation mode ;; thinks it is some sort of "make: ..." message. This doesn't ;; happen in wildlife, because there's a default message face ;; (underline) that prevents this. In tests this is turned off, ;; see `(compilation-message-face nil)' above, to simplify ;; font-lock face checks. "stdin" font-lock-function-name-face "test-send-syntax-error.lua" compilation-error "1" compilation-line-number) ;; stacktrace with misc info, no font-lock nil nil ("stdin" compilation-error "1" compilation-line-number) ("stdin" compilation-error "1" compilation-line-number) nil nil)))))) (it "does not ask for file on \"stdin:NN\" errors" (let ((fname (make-temp-file "lua_mode_test" nil ".lua")) buf) (unwind-protect (progn (save-current-buffer (setq buf (find-file fname)) (insert "function () end") ;; Make sure the buffer can be killed cleanly (set-buffer-modified-p nil) (lua-send-buffer) (while (accept-process-output lua-process 0 200)) (with-current-buffer lua-process-buffer (font-lock-fontify-buffer)) (cl-letf (((symbol-function 'read-file-name) (lambda (&rest args) (error "read-file-name must not be called")))) (expect (next-error) :to-be nil) (with-current-buffer lua-process-buffer (expect fname :to-equal (get-error-file (compilation-next-error 0)))) (expect (next-error) :to-be nil) (with-current-buffer lua-process-buffer (expect "stdin" :to-equal (get-error-file (compilation-next-error 0))))))) (when buf (kill-buffer buf)) (delete-file fname) (kill-buffer "*lua*"))))) lua-mode-20151025/test/test-strings-and-comments.el000066400000000000000000000057271261314555500220320ustar00rootroot00000000000000;; -*- flycheck-disabled-checkers: (emacs-lisp-checkdoc) -*- (load (concat (file-name-directory (or load-file-name (buffer-file-name) default-directory)) "utils.el") nil 'nomessage 'nosuffix) (defmacro should= (lhs rhs) `(should (equal ,lhs ,rhs))) (describe "Test indent-new-comment-line" (it "works with -- ..." (expect (lua-buffer-strs (lua-insert-goto-<> '("-- foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("-- foobar" "-- ")) (expect (lua-buffer-strs (lua-insert-goto-<> '("xyzzy -- foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("xyzzy -- foobar" "-- ")) (expect (lua-buffer-strs (lua-insert-goto-<> '("xyz<> xyzzy -- foobar")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("xyz" "xyzzy -- foobar"))) (it "works with ---- ...." (expect (lua-buffer-strs (lua-insert-goto-<> '("---- foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("---- foobar" "---- ")) (expect (lua-buffer-strs (lua-insert-goto-<> '("xyzzy ---- foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("xyzzy ---- foobar" "---- "))) (it "doesn't recognize \"--\" inside strings and comments" (expect (lua-buffer-strs (lua-insert-goto-<> '("\"-- \" .. foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("\"-- \" .. foobar" "")) (expect (lua-buffer-strs (lua-insert-goto-<> '("'-- ' .. foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("'-- ' .. foobar" "")) (expect (lua-buffer-strs (lua-insert-goto-<> '("[[-- ]] .. foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("[[-- ]] .. foobar" "")) (expect (lua-buffer-strs (lua-insert-goto-<> '("--[[-- ]] .. foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("--[[-- ]] .. foobar" "")) (expect (lua-buffer-strs (lua-insert-goto-<> '("---[[-- ]] .. foobar <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("---[[-- ]] .. foobar" "---"))) (it "works when the comment is empty" (expect (lua-buffer-strs (lua-insert-goto-<> '("-- <>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("--" "--")) ;; Let's make sure that whitespace is optional. (expect (lua-buffer-strs (lua-insert-goto-<> '("--<>")) (execute-kbd-macro (kbd "M-j"))) :to-equal '("--" "--")))) lua-mode-20151025/test/utils.el000066400000000000000000000112371261314555500161320ustar00rootroot00000000000000;; -*- flycheck-disabled-checkers: (emacs-lisp-checkdoc) -*- (require 'lua-mode) (require 'buttercup) (defun to-be-fontified-as (text faces) (let ((expected-faces (lua-mk-font-lock-faces faces)) (result-faces (lua-get-line-faces text)) (lineno 1)) (when (/= (length expected-faces) (length result-faces)) (buttercup-fail "\ Fontification check failed for: %S Text contains %d lines, face list contains %d lines" text (length result-faces) (length expected-faces))) (while expected-faces (unless (equal (car expected-faces) (car result-faces)) (buttercup-fail "\ Fontification check failed on line %d for: %S Result faces: %S Expected faces: %S" lineno text (car expected-faces) (car result-faces))) (setq expected-faces (cdr expected-faces) result-faces (cdr result-faces) lineno (1+ lineno))) (cons t "Fontification check passed"))) (buttercup-define-matcher :to-be-fontified-as (text faces) (to-be-fontified-as text faces)) (defun get-str-faces (str) "Find contiguous spans of non-default faces in STR. E.g. for properly fontified Lua string \"local x = 100\" it should return '(\"local\" font-lock-keyword-face \"x\" font-lock-variable-name-face \"100\" font-lock-constant-face) " (let ((pos 0) nextpos result prop newprop) (while pos (setq nextpos (next-property-change pos str) newprop (or (get-text-property pos 'face str) (get-text-property pos 'font-lock-face str))) (when (not (equal prop newprop)) (setq prop newprop) (when (listp prop) (when (eq (car-safe (last prop)) 'default) (setq prop (butlast prop))) (when (= 1 (length prop)) (setq prop (car prop))) (when (symbolp prop) (when (eq prop 'default) (setq prop nil)))) (when prop (push (substring-no-properties str pos nextpos) result) (push prop result))) (setq pos nextpos)) (nreverse result))) (defun lua-fontify-str (str) "Return string fontified according to lua-mode's rules" (with-temp-buffer (lua-mode) (insert str) (font-lock-fontify-buffer) (buffer-string))) (defun get-buffer-line-faces () (font-lock-fontify-buffer) (mapcar 'get-str-faces (split-string (buffer-string) "\n" nil))) (defun lua-get-line-faces (str) "Find contiguous spans of non-default faces in each line of STR. The result is a list of lists." (mapcar 'get-str-faces (split-string (lua-fontify-str str) "\n" nil))) (defun lua-mk-font-lock-faces (sym) "Decorate symbols with font-lock-%s-face recursively. This is a mere typing/reading aid for lua-mode's font-lock tests." (or (cond ((symbolp sym) (intern-soft (format "font-lock-%s-face" (symbol-name sym)))) ((listp sym) (mapcar 'lua-mk-font-lock-faces sym))) sym)) (defmacro should-lua-font-lock-equal (strs faces) `(should (equal (lua-get-line-faces ,strs) (lua-mk-font-lock-faces ,faces)))) ;; suppress fontification messages in emacs23 output (setq font-lock-verbose nil) (defun lua-join-lines (strs) (mapconcat (lambda (x) (concat x "\n")) strs "")) (defmacro with-lua-buffer (&rest body) (declare (debug (&rest form))) `(with-temp-buffer (lua-mode) (set (make-local-variable 'lua-process) nil) (set (make-local-variable 'lua-process-buffer) nil) (font-lock-fontify-buffer) (pop-to-buffer (current-buffer)) (unwind-protect (progn ,@body) (when (buffer-live-p lua-process-buffer) (lua-kill-process))))) (defun lua-get-indented-strs (strs) (butlast (split-string (with-lua-buffer (insert (replace-regexp-in-string "^\\s *" "" (lua-join-lines strs))) (font-lock-fontify-buffer) (indent-region (point-min) (point-max)) (buffer-substring-no-properties (point-min) (point-max))) "\n" nil))) (defun lua-insert-goto-<> (strs) "Insert sequence of strings and put point in place of \"<>\"." (insert (lua-join-lines strs)) (goto-char (point-min)) (re-search-forward "<>") (replace-match "") ;; Inserted text may contain multiline constructs which will only be ;; recognized after fontification. (font-lock-fontify-buffer)) (defmacro lua-buffer-strs (&rest body) `(butlast (split-string (with-lua-buffer (progn ,@body) (buffer-substring-no-properties (point-min) (point-max))) "\n" nil))) (defun lua--reindent-like (str) (let ((strs (split-string str "\n")) (indent-tabs-mode nil) (font-lock-verbose nil)) (equal strs (lua-get-indented-strs strs))))