Working Linux build, some CLI improvements

.hgignore

@@ -1,5 +1,7 b''
 .*~
 .qlot
 .html
 .png
 tests
+sugar-qsp
+sugar-qsp.tar.xz

Makefile

@@ -1,25 +1,39 b''
 
 BIN = sugar-qsp
 
 LISP = sbcl
 
-all: diagrams.png $(BIN)
+all: $(BIN)
+
+graphs: diagrams.png
 
 $(BIN): src/*.lisp src/*.ps
 	buildapp.$(LISP) --asdf-path .\
 		--asdf-tree .qlot/dists\
 		--load-system sugar-qsp\
 		--entry sugar-qsp:entry-point\
+		--compress-core\
 		--output $(BIN)
 
 install-deps:
 	sbcl --load install-deps.lisp
 
 update-deps:
 	sbcl --load update-deps.lisp
 
-diagrams.png: diagrams.dot
+%.png: %.dot
 	dot $< -T png -o $@
 
+dist: $(BIN)
+	tar cfvJ sugar-qsp.tar.xz $(BIN) extras
+
+distclean: clean clean-deps
+
 clean:
-	rm sugar-qsp
+	-rm sugar-qsp
+
+clean-deps:
+	-rm qlfile.lock
+	-rm -rf .qlot
+
+.PHONY: all graphs install-deps update-deps clean

TODO

@@ -1,14 +1,15 b''
 
 * Save-load game in slots
-* CLI build for Linux
+
 * CLI build for Windows
 
 * Reporting error lines in the parser
 * Report duplicate label (in the parser)
 * reporting error lines at runtime (by storing them in every form in the parser
 * Report JUMP with missing label (in tagbody)
 
 * Build Istreblenie
 * Build Цветохимия
+
 * Windows GUI (for the compiler)
 * Resizable frames

qlfile

@@ -1,15 +1,10 b''
 ql alexandria
 ql esrap
 ql parenscript
 ql flute
 
 ql cl-ppcre
 ql anaphora
 ql named-readtables
-ql cl-unicode
-ql flexi-streams
-ql trivial-gray-streams
-ql parse-number
-ql iterate
 ql assoc-utils
 ql let-over-lambda

qlfile.lock

@@ -1,68 +1,40 b''
 ("quicklisp" .
  (:class qlot/source/dist:source-dist
   :initargs (:distribution "http://beta.quicklisp.org/dist/quicklisp.txt" :%version :latest)
-  :version "2020-02-18"))
+  :version "2020-04-27"))
 ("alexandria" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))
 ("esrap" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))
 ("parenscript" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
-("cl-uglify-js" .
- (:class qlot/source/ql:source-ql
-  :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))
 ("flute" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))
 ("cl-ppcre" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))
 ("anaphora" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))
 ("named-readtables" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
-("parse-js" .
- (:class qlot/source/ql:source-ql
-  :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
-("cl-unicode" .
- (:class qlot/source/ql:source-ql
-  :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
-("flexi-streams" .
- (:class qlot/source/ql:source-ql
-  :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
-("trivial-gray-streams" .
- (:class qlot/source/ql:source-ql
-  :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
-("parse-number" .
- (:class qlot/source/ql:source-ql
-  :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
-("iterate" .
- (:class qlot/source/ql:source-ql
-  :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))
 ("assoc-utils" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))
 ("let-over-lambda" .
  (:class qlot/source/ql:source-ql
   :initargs (:%version :latest)
-  :version "ql-2020-02-18"))
+  :version "ql-2020-04-27"))

src/api.ps

@@ -1,500 +1,533 b''
 
 (in-package sugar-qsp.api)
 
 ;;; API deals with DOM manipulation and some bookkeeping for the
 ;;; intrinsics, namely variables
 ;;; API is an implementation detail and has no QSP documentation. It
 ;;; doesn't call intrinsics
 
 ;;; Utils
 
 (defun make-act-html (title img)
   (+ "<a class='qsp-act' href='" (href-call call-act title) "' onmouseover='" (inline-call select-act title) "'>"
      (if img (+ "<img src='" img "'>") "")
      title
      "</a>"))
 
 (defun make-menu-item-html (num title img loc)
   (+ "<a href='" (href-call finish-menu loc) "'>"
      (if img (+ "<img src='" img "'>") "")
      title
      "</a>"))
 
 (defun make-obj (title img selected)
   (+ "<li onclick='" (inline-call select-obj title img) "'>"
      "<a class='qsp-obj" (if selected " qsp-obj-selected" "") "'>"
      (if img (+ "<img src='" img "'>") "")
      title
      "</a>"))
 
 (defun make-menu-delimiter ()
   "<hr>")
 
 (defun copy-obj (obj)
   (chain *j-s-o-n (parse (chain *j-s-o-n (stringify obj)))))
 
 (defun report-error (text)
   (alert text))
 
 (defun start-sleeping ()
   (chain (by-id "qsp") class-list (add "disable")))
 
 (defun finish-sleeping ()
   (chain (by-id "qsp") class-list (remove "disable")))
 
 (defun sleep (msec)
   (with-sleep (resume)
     (set-timeout resume msec)))
 
 (defun init-dom ()
   ;; Save/load buttons
   (let ((btn (by-id "qsp-btn-save")))
     (setf (@ btn onclick) savegame)
     (setf (@ btn href) "#"))
   (let ((btn (by-id "qsp-btn-open")))
     (setf (@ btn onclick) opengame)
     (setf (@ btn href) "#"))
   ;; Close image on click
   (setf (@ (by-id "qsp-image-container") onclick)
         show-image)
   ;; Enter in input field
   (setf (@ (get-frame :input) onkeyup)
         on-input-key)
   ;; Close the dropdown on any click
   (setf (@ window onclick)
         (lambda (event)
           (setf (@ window mouse)
                 (list (@ event page-x)
                       (@ event page-y)))
           (finish-menu nil))))
 
 (defun call-serv-loc (var-name &rest args)
   (let ((loc-name (get-global var-name 0)))
     (when loc-name
       (let ((loc (getprop *locs loc-name)))
         (when loc
           (call-loc loc-name args))))))
 
 (defun filename-game (filename)
   (let ((game-name (chain filename (match "(.*/)?([^.]+)(\\.[a-zA-Z]+)?") 2))))
   (getprop *games game-name))
 
 (defun run-game (name)
   (let ((game (filename-game name)))
     (setf *main-game name)
     ;; Replace locations with the new game's 
     (setf *locs game)
     (funcall (getprop game
                       (chain *object (keys game) 0))
              (list))))
 
 ;;; Misc
 
 (defun newline (key)
   (append-id (key-to-id key) "<br>" t))
 
 (defun clear-id (id)
   (setf (inner-html (by-id id)) ""))
 
 (defun escape-html (text)
   (chain text
          (replace (regex "/&/g") "&amp;")
          (replace (regex "/</g") "&lt;")
          (replace (regex "/>/g") "&gt;")
          (replace (regex "/\"/g") "&quot;")
          (replace (regex "/'/g") "&apos;")))
 
 (defun prepare-contents (s &optional force-html)
   (setf s (chain s (to-string)))
   (if (or force-html (get-global "USEHTML" 0))
       s
       (escape-html s)))
 
 (defun get-id (id &optional force-html)
   (inner-html (by-id id)))
 
 (defun set-id (id contents &optional force-html)
   (setf (inner-html (by-id id)) (prepare-contents contents force-html)))
 
 (defun append-id (id contents &optional force-html)
   (when contents
     (incf (inner-html (by-id id)) (prepare-contents contents force-html))))
 
 (defun on-input-key (ev)
   (when (= 13 (@ ev key-code))
     (chain ev (prevent-default))
     (call-serv-loc "$USERCOM")))
 
 ;;; Function calls
 
 (defun init-args (args)
   (dotimes (i (length args))
     (let ((arg (elt args i)))
       (if (numberp arg)
           (set-var args i :num arg)
           (set-var args i :str arg)))))
 
 (defun get-result ()
   (or (get-global "$RESULT" 0)
       (get-global "RESULT" 0)))
 
 (defun call-loc (name args)
   (setf name (chain name (to-upper-case)))
   (with-frame
       (with-call-args args
         (funcall (getprop *locs name))))
   (void))
 
 (defun call-act (title)
   (setf *current-action title)
   (with-frame
       (funcall (getprop *acts title :act)))
   (setf *current-action nil)
   (void))
 
 ;;; Text windows
 
 (defun key-to-id (key)
   (case key
     (:all "qsp")
     (:main "qsp-main")
     (:stat "qsp-stat")
     (:objs "qsp-objs")
     (:acts "qsp-acts")
     (:input "qsp-input")
     (:image "qsp-image")
     (:dropdown "qsp-dropdown")
     (t (report-error "Internal error!"))))
 
 (defun get-frame (key)
   (by-id (key-to-id key)))
 
 (defun add-text (key text)
   (append-id (key-to-id key) text))
 
 (defun get-text (key)
   (get-id (key-to-id key)))
 
 (defun clear-text (key)
   (clear-id (key-to-id key)))
 
 (defun enable-frame (key enable)
   (let ((obj (get-frame key)))
     (setf (@ obj style display) (if enable "block" "none"))
     (void)))
 
 ;;; Actions
 
 (defun add-act (title img act)
   (setf (getprop *acts title)
         (create :title title :img img :act act :selected nil))
   (update-acts))
 
 (defun del-act (&optional title)
   (delete (getprop *acts (or title *current-action)))
   (update-acts))
 
 (defun clear-act ()
   (setf *acts (create))
   (update-acts))
 
 (defun update-acts ()
   (clear-id "qsp-acts")
   (let ((elt (by-id "qsp-acts")))
     (for-in (title *acts)
             (let ((obj (getprop *acts title)))
               (incf (inner-html elt) (make-act-html title (getprop obj :img)))))))
 
 (defun select-act (title)
   (loop :for (k v) :of *acts
      :do (setf (getprop v :selected) nil))
   (setf (getprop *acts title :selected) t)
   (call-serv-loc "$ONACTSEL"))
 
 ;;; "Syntax"
 
 (defun qspfor (name index from to step body)
   (for ((i from))
        ((< i to))
        ((incf i step))
        (set-var name index :num i)
        (unless (await (funcall body))
          (return-from qspfor))))
 
 ;;; Variables
 
 (defun new-var (slot &rest indexes)
   (let ((v (list)))
     (dolist (index indexes)
       (setf (elt v index) (if (eq #\$ (elt slot 0)) "" 0)))
     (setf (@ v :indexes) (create))
     v))
 
 (defun set-str-element (slot index value)
   (if (has index (getprop slot :indexes))
       (setf (elt (getprop slot) 
                  (getprop slot :indexes index))
             value)
       (progn
         (chain slot (push value))
         (setf (elt slot index)
               (length slot))))
   (void))
 
 (defun set-any-element (slot index value)
   (cond ((null index)
          (chain (elt slot) (push value)))
         ((numberp index)
          (setf (elt slot index) value))
         ((stringp index)
          (set-str-element slot index value))
         (t (report-error "INTERNAL ERROR")))
   (void))
 
 (defun set-serv-var (name index value)
   (let ((slot (getprop *globals name)))
     (set-any-element slot index value))
   (funcall (getprop serv-vars name :body) value index)
   (void))
 
 (defun get-element (slot index)
   (if (numberp index)
       (elt slot index)
       (elt slot (getprop slot :indexes index))))
 
 (defun get-global (name index)
   (elt (getprop *globals name) index))
 
 (defun kill-var (store name &optional index)
   (setf name (chain name (to-upper-case)))
   (if (and index (not (= 0 index))) 
       (chain (getprop *globals name) (kill index))
       (delete (getprop *globals name)))
   (void))
 
 (defun array-size (name)
   (@ (var-ref name) :values length))
 
 ;;; Locals
 
 (defun push-local-frame ()
   (chain *locals (push (create)))
   (void))
 
 (defun pop-local-frame ()
   (chain *locals (pop))
   (void))
 
 (defun current-local-frame ()
   (elt *locals (1- (length *locals))))
 
 ;;; Objects
 
 (defun select-obj (title img)
   (loop :for (k v) :of *objs
      :do (setf (getprop v :selected) nil))
   (setf (getprop *objs title :selected) t)
   (call-serv-loc "$ONOBJSEL" title img))
 
 (defun update-objs ()
   (let ((elt (by-id "qsp-objs")))
     (setf (inner-html elt) "<ul>")
     (loop :for (name obj) :of *objs
        :do (incf (inner-html elt)
                  (make-obj name (@ obj :img) (@ obj :selected))))
     (incf (inner-html elt) "</ul>")))
 
 ;;; Menu
 
 (defun open-menu (menu-data)
   (let ((elt (get-frame :dropdown))
         (i 0))
     (loop :for item :in menu-data
        :do (incf i)
        :do (incf (inner-html elt)
                  (if (eq item :delimiter)
                      (make-menu-delimiter i)
                      (make-menu-item-html i
                                           (@ item :text)
                                           (@ item :icon)
                                           (@ item :loc)))))
     (let ((mouse (@ window mouse)))
       (setf (@ elt style left) (+ (elt mouse 0) "px"))
       (setf (@ elt style top) (+ (elt mouse 1) "px"))
       ;; Make sure it's inside the viewport
       (when (> (@ document body inner-width)
                (+ (elt mouse 0) (@ elt inner-width)))
         (incf (@ elt style left) (@ elt inner-width)))
       (when (> (@ document body inner-height)
                (+ (elt mouse 0) (@ elt inner-height)))
         (incf (@ elt style top) (@ elt inner-height))))
     (setf (@ elt style display) "block")))
 
 (defun finish-menu (loc)
   (when *menu-resume
     (let ((elt (get-frame :dropdown)))
       (setf (inner-html elt) "")
       (setf (@ elt style display) "none")
       (funcall *menu-resume)
       (setf *menu-resume nil))
     (when loc
       (call-loc loc)))
   (void))
 
 (defun menu (menu-data)
   (with-sleep (resume)
     (open-menu menu-data)
     (setf *menu-resume resume))
   (void))
 
 ;;; Content
 
 (defun clean-audio ()
   (loop :for k :in (chain *object (keys *playing))
      :for v := (getprop *playing k)
      :do (when (@ v ended)
            (delete (@ *playing k)))))
 
 (defun show-image (path)
   (let ((img (get-frame :image)))
     (cond (path
            (setf (@ img src) path)
            (setf (@ img style display) "flex"))
           (t
            (setf (@ img src) "")
            (setf (@ img style display) "hidden")))))
 
 (defun show-inline-images (frame-name images)
   (let ((frame (get-frame frame-name))
         (text ""))
     (incf text "<div style='position:relative; display: inline-block'>")
     (incf text (+ "<img src='" (@ images 0) "'>"))
     (loop :for image :in (chain images (slice 1))
        :do (incf text
                  (+ "<img style='position:absolute' src='" image "'>")))
     (incf text "</div>")
     (incf (inner-html frame) text)))
 
 (defun rgb-string (rgb)
   (let ((red (ps::>> rgb 16))
         (green (logand (ps::>> rgb 8) 255))
         (blue (logand rgb 255)))
     (flet ((rgb-to-hex (comp)
              (let ((hex (chain (*number comp) (to-string 16))))
                (if (< (length hex) 2)
                    (+ "0" hex)
                    hex))))
       (+ "#" (rgb-to-hex red) (rgb-to-hex green) (rgb-to-hex blue)))))
 
+(defun store-obj (key obj)
+  (store-str key (btoa (encode-u-r-i-component (chain *j-s-o-n (stringify obj)))))
+  (void))
+(defun store-str (key str)
+  (chain local-storage (set-item (+ "qsp_" key) str))
+  (void))
+
+(defun load-obj (key)
+  (chain *j-s-o-n (parse (encode-u-r-i-component (atob (load-str key))))))
+(defun load-str (key)
+  (chain local-storage (get-item (+ "qsp_" key))))
+
 ;;; Saves
 
+(defun slot-savegame (slot comment)
+  (let ((saves (load-obj "saves")))
+    (setf (@ saves slot) comment)
+    (store-obj saves))
+  (store-str slot (state-to-base64))
+  (void))
+
+(defun slot-loadgame (slot)
+  (base64-to-state (load-str slot))
+  (void))
+
+(defun slot-deletegame (slot)
+  (let ((saves (load-obj "saves")))
+    (setf (@ saves slot) undefined)
+    (store-obj saves))
+  (store-str slot undefined)
+  (void))
+
+(defun slot-listgames ()
+  (load-obj "saves"))
+
 (defun opengame ()
   (let ((element (chain document (create-element :input))))
     (chain element (set-attribute :type :file))
     (chain element (set-attribute :id :qsp-opengame))
     (chain element (set-attribute :tabindex -1))
     (chain element (set-attribute "aria-hidden" t))
     (setf (@ element style display) :block)
     (setf (@ element style visibility) :hidden)
     (setf (@ element style position) :fixed)
     (setf (@ element onchange)
           (lambda (event)
             (let* ((file (@ event target files 0))
                    (reader (new (*file-reader))))
               (setf (@ reader onload)
                     (lambda (ev)
                       (block nil
                         (let ((target (@ ev current-target)))
                           (unless (@ target result)
                             (return))
                           (base64-to-state (@ target result))
                           (unstash-state)))))
               (chain reader (read-as-text file)))))
     (chain document body (append-child element))
     (chain element (click))
     (chain document body (remove-child element))))
 
 (defun savegame ()
   (let ((element (chain document (create-element :a))))
     (chain element (set-attribute :href (+ "data:text/plain;charset=utf-8," (state-to-base64))))
     (chain element (set-attribute :download "savegame.sav"))
     (setf (@ element style display) :none)
     (chain document body (append-child element))
     (chain element (click))
     (chain document body (remove-child element))))
 
 (defun stash-state (args)
   (call-serv-loc "$ONGSAVE")
   (setf *state-stash
         (chain *j-s-o-n (stringify
                          (create :vars *globals
                                  :objs *objs
                                  :loc-args args
                                  :msecs (- (chain *date (now)) *started-at)
                                  :timer-interval *timer-interval
                                  :main-html (inner-html
                                              (get-frame :main))
                                  :stat-html (inner-html
                                              (get-frame :stat))
                                  :next-location *current-location))))
   (void))
 
 (defun unstash-state ()
   (let ((data (chain *j-s-o-n (parse *state-stash))))
     (clear-act)
     (setf *globals (@ data :vars))
     (loop :for k :in (chain *object (keys *globals))
        :do (chain *object (set-prototype-of (getprop *globals k)
                                             (@ *var prototype))))
     (setf *started-at (- (chain *date (now)) (@ data :msecs)))
     (setf *objs (@ data :objs))
     (setf *current-location (@ data :next-location))
     (setf (inner-html (get-frame :main))
           (@ data :main-html))
     (setf (inner-html (get-frame :stat))
           (@ data :stat-html))
     (update-objs)
     (set-timer (@ data :timer-interval))
     (call-serv-loc "$ONGLOAD")
     (call-loc *current-location (@ data :loc-args))
     (void)))
 
 (defun state-to-base64 ()
   (btoa (encode-u-r-i-component *state-stash)))
 
 (defun base64-to-state (data)
   (setf *state-stash (decode-u-r-i-component (atob data))))
 
 ;;; Timers
 
 (defun set-timer (interval)
   (setf *timer-interval interval)
   (clear-interval *timer-obj)
   (setf *timer-obj
         (set-interval
          (lambda ()
            (call-serv-loc "$COUNTER"))
          interval)))
 
 ;;; Special variables
 
 (defvar serv-vars (create))
 
 (define-serv-var $backimage (path)
   (setf (@ (get-frame :main) style background-image) path))
 
 (define-serv-var bcolor (color)
   (setf (@ (get-frame :all) style background-color) (rgb-string color)))
 
 (define-serv-var fcolor (color)
   (setf (@ (get-frame :all) style color) (rgb-string color)))
 
 (define-serv-var lcolor (color)
   (setf (@ (get-frame :style) inner-text)
         (+ "a { color: " (rgb-string color) ";}")))
 
 (define-serv-var fsize (size)
   (setf (@ (get-frame :all) style font-size) size))
 
 (define-serv-var $fname (font-name)
   (setf (@ (get-frame :all) style font-family) (+ font-name ",serif")))

src/js-syms.lisp

@@ -1,43 +1,44 b''
 
 (in-package sugar-qsp.js)
 
 ;;; Contains symbols from standard JS library to avoid obfuscating
 ;;; and/or namespacing them
 
 (cl:defmacro syms (cl:&rest syms)
   `(cl:progn
      ,@(cl:loop :for sym :in syms
           :collect `(cl:export ',sym))))
 
 (syms
  ;; main
  window
  *object assign
  now
  onload
  keys includes
  has-own-property
  ;; api
  document get-element-by-id get-elements-by-tag-name
  onclick onchange
  atob btoa split
  alert prompt
  set-timeout set-interval clear-interval
  *promise *j-s-o-n
  href parse match
  set-prototype-of
  body append-child remove-child
  add ; remove (is already in COMMON-LISP)
  create-element set-attribute class-list
  *file-reader read-as-text
  style display src
  page-x page-y
  top left
  background-image background-color
  color inner-text font-size font-family font-name
+ local-storage set-item get-item
  ;; lib
  *number parse-int
  to-string to-upper-case concat
  click target current-target files index-of result
  decode-u-r-i-component splice
  )

src/main-macros.lisp

@@ -1,8 +1,8 b''
 
 (in-package sugar-qsp.main)
 
 (defmacro+ps api-call (name &rest args)
-  `(,(intern (string-upcase name) "API") ,@args))
+  `(,(intern (string-upcase name) "SUGAR-QSP.API") ,@args))
 
 (defpsmacro has (key obj)
   `(chain ,obj (has-own-property ,key)))

src/main.lisp

@@ -1,148 +1,163 b''
 
 (in-package sugar-qsp)
 
+(defvar *app-name* "")
+
 (defun entry-point-no-args ()
   (entry-point uiop:*command-line-arguments*))
 
 (defun entry-point (args)
-  (catch :terminate
-    (let ((compiler (apply #'make-instance 'compiler (parse-opts args))))
-      (write-compiled-file compiler)))
+  (setf *app-name* (first args))
+  (let ((*package* (find-package :sugar-qsp)))
+    (catch :terminate
+      (let ((compiler (apply #'make-instance 'compiler (parse-opts (rest args)))))
+        (write-compiled-file compiler))))
   (values))
 
 (defun parse-opts (args)
   (let ((mode :sources)
         (data (list :sources nil :target nil :js nil :css nil :body nil :compile nil :beautify nil)))
     (loop :for arg :in args
        :do (alexandria:switch (arg :test #'string=)
              ("-o" (setf mode :target))
              ("--js" (setf mode :js))
              ("--css" (setf mode :css))
              ("--body" (setf mode :body))
              ("-c" (setf (getf data :compile) t))
              ("--beautify" (setf (getf data :beautify) t))
              (t (push arg (getf data mode)))))
     (unless (< 0 (length (getf data :sources)))
-      (print-usage)
       (report-error "There should be at least one source"))
     (unless (> 1 (length (getf data :target)))
-      (print-usage)
       (report-error "There should be no more than one target"))
     (unless (> 1 (length (getf data :body)))
-      (print-usage)
       (report-error "There should be no more than one body"))
     (unless (getf data :target)
       (setf (getf data :target)
             (let* ((sources (first (getf data :sources)))
                    (tokens (uiop:split-string sources :separator "."))
                    (target (format nil "~{~A~^.~}.html"
                                    (butlast tokens))))
               (list target))))
     (list :sources (getf data :sources)
           :target (first (getf data :target))
           :js (getf data :js)
           :css (getf data :css)
           :body (first (getf data :body))
           :compile (getf data :compile)
           :beautify (getf data :beautify))))
 
 (defun print-usage ()
-  (format t "USAGE: "))
+  (format t "Usage: ~A <source> [options]~%" *app-name*)
+  (format t "Options:~%")
+  (format t "  -o <filename>         - Output filename~%")
+  (format t "  --js <filenames...>   - List of extra .js files to include in the game~%")
+  (format t "  --css <filenames...>  - List of .css files to include in the game. Default is in extras/default.css~%")
+  (format t "  --body <filename>     - Alternative page body. Default is in extras/body.html~%")
+  (format t "~%")
+  (format t "  -c                    - Just compile the game to a .js file without making it a full web page~%")
+  (format t "  --beautify            - Make the JS content pretty. By default it gets minified.~%")
+  (format t "~%")
+  (format t "Note that the files in extras/ are not actually used. They're just there for the reference"))
 
 (defun parse-file (filename)
   (p:parse 'sugar-qsp-grammar
            (alexandria:read-file-into-string filename)))
 
 (defun report-error (fmt &rest args)
-  (apply #'format t fmt args)
+  (format t "ERROR: ~A~%" (apply #'format nil fmt args))
+  (print-usage)
   (throw :terminate nil))
 
 ;;; JS
 
 (defun minify-package (package-designator minify prefix)
   (setf (ps:ps-package-prefix package-designator) prefix)
   (if minify
       (ps:obfuscate-package package-designator)
       (ps:unobfuscate-package package-designator)))
 
 (defmethod js-sources ((compiler compiler))
   (let ((ps:*ps-print-pretty* (beautify compiler)))
     (cond ((beautify compiler)
            (minify-package "SUGAR-QSP.MAIN" nil "qsp_")
            (minify-package "SUGAR-QSP.API"  nil "qsp_api_")
            (minify-package "SUGAR-QSP.LIB"  nil "qsp_lib_"))
           (t
            (minify-package "SUGAR-QSP.MAIN" t   "_")
            (minify-package "SUGAR-QSP.API"  t   "a_")
            (minify-package "SUGAR-QSP.LIB"  t   "l_")))
     (format nil "~{~A~^~%~%~}" (mapcar #'ps:ps* (reverse (js compiler))))))
 
 ;;; CSS
 
 (defmethod css-sources ((compiler compiler))
   (format nil "~{~A~^~%~%~}" (css compiler)))
 
 ;;; HTML
 
 (defmethod html-sources ((compiler compiler))
   (let ((flute:*escape-html* nil)
         (body-template (body compiler))
         (js (js-sources compiler))
         (css (css-sources compiler)))
     (with-output-to-string (out)
       (write
        (flute:h
          (html
           (head
            (title "SugarQSP"))
           (body
            body-template
            (style css)
            (script js))))
        :stream out
        :pretty nil))))
 
 (defun filename-game (filename)
   (let ((filename (alexandria:lastcar (uiop:split-string filename :separator "/"))))
     (format nil "~{~A~^.~}" (butlast (uiop:split-string filename :separator ".")))))
 
 (defmethod initialize-instance ((compiler compiler) &key sources ((:js js-files)) ((:css css-files)) ((:body body-file)) compile &allow-other-keys)
   (call-next-method)
   (with-slots (body css js)
       compiler
     ;; Compile the game's JS
     (dolist (source sources)
       (let ((ps (parse-file source))
             (game-name (filename-game source)))
         (destructuring-bind (kw &rest locations)
             ps
           (unless (eq kw 'lib:game)
             (report-error "Internal error!"))
           (push 
            `(lib:game (,game-name) ,@locations)
            js))))
     ;; Does the user need us to do anything else
     (unless compile
       ;; Read in body
       (when body-file
         (setf body
               (alexandria:read-file-into-string body-file)))
       ;; Include js files
       (dolist (js-file js-files)
         (push (format nil "////// Included file ~A~%~A" js-file
                       (alexandria:read-file-into-string js-file))
               js))
       ;; Include css files
-      (dolist (css-file css-files)
-        (push (format nil "////// Included file ~A~%~A" css-file
-                      (alexandria:read-file-into-string css-file))
-              css)))))
+      (when css-files
+        ;; User option overrides the default css
+        (setf css nil)
+        (dolist (css-file css-files)
+          (push (format nil "////// Included file ~A~%~A" css-file
+                        (alexandria:read-file-into-string css-file))
+                css))))))
 
 (defmethod write-compiled-file ((compiler compiler))
   (alexandria:write-string-into-file
    (if (compile-only compiler)
        ;; Just the JS
        (js-sources compiler)
        ;; All of it
        (html-sources compiler))
    (target compiler) :if-exists :supersede))

src/parser.lisp

@@ -1,623 +1,624 b''
 
 (in-package sugar-qsp)
 
 ;;;; Parses TXT source to an intermediate representation
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
   (defparameter *max-args* 10))
 
 ;;; Utility
 
 (defun remove-nth (list nth)
   (append (subseq list 0 nth)
           (subseq list (1+ nth))))
 
 (defun not-quote (char)
   (not (eql #\' char)))
 
 (defun not-doublequote (char)
   (not (eql #\" char)))
 
 (defun not-brace (char)
   (not (eql #\} char)))
 
 (defun not-integer (string)
   (when (find-if-not #'digit-char-p string)
     t))
 
 (defun not-newline (char)
   (not (eql #\newline char)))
 
 (defun id-any-char (char)
   (and
    (not (digit-char-p char))
    (not (eql #\newline char))
    (not (find char " 	!:&=<>+-*/,'\"()[]{}"))))
 
 (defun intern-first (list)
-  (list* (intern (string-upcase (first list)) :lib)
+  (list* (intern (string-upcase (first list)) "SUGAR-QSP.LIB")
          (rest list)))
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
   (defun remove-nil (list)
     (remove nil list)))
 
 (defun binop-rest (list)
   (destructuring-bind (ws1 operator ws2 operand2)
       list
     (declare (ignore ws1 ws2))
     (list (intern (string-upcase operator) "SUGAR-QSP.LIB") operand2)))
 
 (defun do-binop% (left-op other-ops)
   (if (null other-ops)
       left-op
       (destructuring-bind ((operator right-op) &rest rest-ops)
           other-ops
         (if (and (listp left-op)
                  (eq (first left-op)
                      operator))
             (do-binop% (append left-op (list right-op)) rest-ops)
             (do-binop% (list operator left-op right-op) rest-ops)))))
 
 (defun do-binop (list)
   (destructuring-bind (left-op rest-ops)
       list
     (do-binop% left-op
       (mapcar #'binop-rest rest-ops))))
 
 (p:defrule line-continuation (and #\_ #\newline)
   (:constant nil))
 
 (p:defrule text-spaces (+ (or #\space #\tab line-continuation))
   (:text t))
 
 (p:defrule spaces (+ (or #\space #\tab line-continuation))
   (:constant nil)
   (:error-report nil))
 
 (p:defrule spaces? (* (or #\space #\tab line-continuation))
   (:constant nil)
   (:error-report nil))
 
 (p:defrule colon #\:
   (:constant nil))
 
 (p:defrule equal #\=
   (:constant nil))
 
 (p:defrule alphanumeric (alphanumericp character))
 
 (p:defrule not-newline (not-newline character))
 
 (p:defrule squote-esc "''"
   (:lambda (list)
     (p:text (elt list 0))))
 
 (p:defrule dquote-esc "\"\""
   (:lambda (list)
     (p:text (elt list 0))))
 
 (p:defrule sstring-chars (+ (and (and (p:! "<<") (p:! (p:~ "\"exec:")))
                                  (or squote-esc (not-quote character))))
   (:lambda (list)
     (p:text (mapcar #'second list))))
 
 (p:defrule dstring-chars (+ (and (and (p:! "<<") (p:! (p:~ "'exec:")))
                                  (or dquote-esc (not-doublequote character))))
   (:lambda (list)
     (p:text (mapcar #'second list))))
 
 ;;; Identifiers
 
 (defparameter *keywords* '(act addlib addobj addqst and arrcomp arrpos arrsize cla clear *clear close clr *clr cls cmdclear cmdclr copyarr counter countobj curact curacts curloc debug delact dellib delobj desc disablescroll disablesubex dynamic dyneval else elseif end exit for freelib func getobj gosub goto gs gt if iif img *img inclib input instr isnum isplay jump killall killobj killqst killvar lcase lcolor len let loc local maintxt max menu mid min mod msecscount msg nl *nl no nosave obj opengame openqst or p *p pl *pl play qspver rand refint replace rgb rnd savegame selact selobj set settimer showacts showinput showobjs showstat stattxt step str strcomp strfind strpos to trim ucase unsel unselect usercom user_text usrtxt val view wait xgoto xgt))
 
 (defun trim-$ (str)
   (if (char= #\$ (elt str 0))
       (subseq str 1)
       str))
 
 (defun qsp-keyword-p (id)
   (member (intern (trim-$ (string-upcase id))) *keywords*))
 
 (defun not-qsp-keyword-p (id)
   (not (member (intern (trim-$ (string-upcase id))) *keywords*)))
 
 (p:defrule qsp-keyword (qsp-keyword-p identifier-raw))
 
 (p:defrule id-first (id-any-char character))
 (p:defrule id-next (or (id-any-char character)
                        (digit-char-p character)))
 (p:defrule identifier-raw (and id-first (* id-next))
   (:lambda (list)
-    (intern (string-upcase (p:text list)) :lib)))
+    (intern (string-upcase (p:text list)) "SUGAR-QSP.LIB")))
 
 (p:defrule identifier (not-qsp-keyword-p identifier-raw))
 
 ;;; Strings
 
 (p:defrule qsp-string (or normal-string brace-string))
 
 (p:defrule normal-string (or sstring dstring)
   (:lambda (str)
     (list* 'lib:str (or str (list "")))))
 
 (p:defrule sstring (and #\' (* (or string-interpol
                                    sstring-exec
                                    sstring-chars))
                         #\')
   (:function second))
 
 (p:defrule dstring (and #\" (* (or string-interpol
                                    dstring-exec
                                    dstring-chars))
                         #\")
   (:function second))
 
 (p:defrule string-interpol (and "<<" expression ">>")
   (:function second))
 
 (p:defrule sstring-exec-body (+ (or squote-esc (not-doublequote character)))
   (:text t))
 
 (p:defrule dstring-exec-body (+ (or dquote-esc (not-quote character)))
   (:text t))
 
 (p:defrule sstring-exec (and (p:~ "\"exec:") sstring-exec-body #\")
   (:lambda (list)
     (list* 'lib:exec (p:parse 'exec-body (second list)))))
 
 (p:defrule dstring-exec (and (p:~ "'exec:") dstring-exec-body #\')
   (:lambda (list)
     (list* 'lib:exec (p:parse 'exec-body (second list)))))
 
 (p:defrule brace-string (and #\{ before-statement block-body #\})
   (:lambda (list)
     (list* 'lib:qspblock (third list))))
 
 ;;; Location
 
 (p:defrule sugar-qsp-grammar (and (* (or spaces #\newline))
                                   (* location))
   (:lambda (list)
     `(lib:game ,@(second list))))
 
 (p:defrule location (and location-header block-body location-end)
   (:destructure (header body end)
     (declare (ignore end))
     `(lib:location (,header) ,@body)))
 
 (p:defrule location-header (and #\#
                                 (+ not-newline)
                                 (and #\newline spaces? before-statement))
   (:destructure (spaces1 name spaces2)
     (declare (ignore spaces1 spaces2))
     (string-upcase (string-trim " " (p:text name)))))
 
 (p:defrule location-end (and #\- (* not-newline) #\newline before-statement)
   (:constant nil))
 
 ;;; Block body
 
 (p:defrule newline-block-body (and #\newline spaces? block-body)
   (:function third))
 
 (p:defrule block-body (* statement)
   (:function remove-nil))
 
 ;; Just for <a href="exec:...'>
 ;; Explicitly called from that rule's production
 (p:defrule exec-body (and before-statement line-body)
   (:function second))
 
 (p:defrule line-body (and inline-statement (* next-inline-statement))
   (:lambda (list)
     (list* (first list) (second list))))
 
 (p:defrule before-statement (* (or #\newline spaces))
   (:constant nil))
 
 (p:defrule statement-end (or statement-end-real statement-end-block-close))
 
 (p:defrule statement-end-real (and (or #\newline
                                        (and #\& spaces? (p:& statement%)))
                                    before-statement)
   (:constant nil))
 
 (p:defrule statement-end-block-close (or (p:& #\}))
   (:constant nil))
 
 (p:defrule inline-statement (and statement% spaces?)
   (:function first))
 
 (p:defrule next-inline-statement (and #\& spaces? inline-statement)
   (:function third))
 
 (p:defrule not-a-non-statement (and (p:! (p:~ "elseif"))
                                     (p:! (p:~ "else"))
                                     (p:! (p:~ "end"))))
 
 (p:defrule statement (and inline-statement statement-end)
   (:function first))
 
 (p:defrule statement% (and not-a-non-statement
                            (or label comment string-output
                                block non-returning-intrinsic local
                                assignment expression-output))
   (:function second))
 
 (p:defrule expr-stopper (or comment block non-returning-intrinsic))
 
 (p:defrule string-output qsp-string
   (:lambda (string)
     (list 'lib:main-pl string)))
 
 (p:defrule expression-output expression
   (:lambda (list)
     (list 'lib:main-pl list)))
 
 (p:defrule label (and colon identifier)
   (:lambda (list)
     (intern (string (second list)) :keyword)))
 
 (p:defrule comment (and #\! (* (or qsp-string brace-comment text-spaces not-newline)))
   (:constant nil))
 
 (p:defrule brace-comment (and #\{ (* (not-brace character)) #\})
   (:constant nil))
 
 (p:defrule local (and (p:~ "local") spaces variable (p:? (and spaces? #\= spaces? expression)))
   (:lambda (list)
     (list* 'lib:local (third list)
            (when (fourth list)
              (list (fourth (fourth list)))))))
 
 ;;; Blocks
 
 (p:defrule block (or block-act block-if block-for))
 
 (p:defrule block-if (and block-if-head block-if-body)
   (:destructure (head body)
     `(lib:qspcond (,@head ,@(first body))
                   ,@(rest body))))
 
 (p:defrule block-if-head (and (p:~ "if") spaces expression spaces? colon spaces?)
   (:function remove-nil)
   (:function cdr))
 
 (p:defrule block-if-body (or block-if-ml block-if-sl)
   (:destructure (if-body elseifs else &rest ws)
     (declare (ignore ws))
     `(,(remove-nil if-body) ,@elseifs ,@(when else `((else ,@else))))))
 
 (p:defrule block-if-sl (and line-body
                             (p:? block-if-elseif-inline)
                             (p:? block-if-else-inline)
                             spaces?))
 
 (p:defrule block-if-ml (and (and #\newline spaces?)
                             block-body
                             (p:? block-if-elseif)
                             (p:? block-if-else)
                             block-if-end)
   (:lambda (list)
     (cdr list)))
 
 (p:defrule block-if-elseif-inline (and block-if-elseif-head line-body (p:? block-if-elseif-inline))
   (:destructure (head statements elseif)
     `((,@(rest head) ,@(remove-nil statements)) ,@elseif)))
 
 (p:defrule block-if-elseif (and block-if-elseif-head statement-end block-body (p:? block-if-elseif))
   (:destructure (head ws statements elseif)
     (declare (ignore ws))
     `((,@(rest head) ,@(remove-nil statements)) ,@elseif)))
 
 (p:defrule block-if-elseif-head (and (p:~ "elseif") spaces expression spaces? colon spaces?)
   (:function remove-nil)
   (:function intern-first))
 
 (p:defrule block-if-else-inline (and block-if-else-head line-body)
   (:function second))
 
 (p:defrule block-if-else (and block-if-else-head #\newline spaces? block-body)
   (:function fourth))
 
 (p:defrule block-if-else-head (and (p:~ "else") spaces?)
   (:constant nil))
 
 (p:defrule block-if-end (and (p:~ "end") 
                              (p:? (and spaces (p:~ "if"))))
   (:constant nil))
 
 (p:defrule block-act (and block-act-head (or block-ml block-sl))
   (:lambda (list)
     (apply #'append list)))
 
 (p:defrule block-act-head (and (p:~ "act") spaces? qsp-string spaces?
                                (p:? block-act-head-img)
                                colon spaces?)
   (:lambda (list)
     (intern-first (list (first list)
                         (third list)
                         (or (fifth list) '(lib:str ""))))))
 
 (p:defrule block-act-head-img (and #\, spaces? qsp-string spaces?)
   (:lambda (list)
     (or (third list) "")))
 
 (p:defrule block-for (and block-for-head (or block-ml block-sl))
   (:lambda (list)
     (apply #'append list)))
 
 (p:defrule block-for-head (and (p:~ "for") spaces variable spaces? equal spaces? expression 
                                (p:~ "to") spaces expression
                                block-for-head-step
                                colon spaces?)
   (:lambda (list)
     (list 'lib:qspfor
           (elt list 2)
           (elt list 6)
           (elt list 9)
           (elt list 10))))
 
 (p:defrule block-for-head-step (p:? (and (p:~ "step") spaces expression spaces?))
   (:lambda (list)
     (if list
         (third list)
         1)))
 
 (p:defrule block-sl line-body)
 
 (p:defrule block-ml (and newline-block-body block-end)
   (:lambda (list)
     (apply #'list* (butlast list))))
 
 (p:defrule block-end (and (p:~ "end"))
   (:constant nil))
 
 ;;; Calls
 
 (p:defrule first-argument (and expression spaces?)
   (:function first))
 (p:defrule next-argument (and "," spaces? expression)
   (:function third))
 (p:defrule arguments (or parenthesized-arguments plain-arguments no-arguments))
 (p:defrule parenthesized-arguments (and spaces? #\( base-arguments #\))
   (:function third))
 (p:defrule plain-arguments (and spaces? base-arguments)
   (:function second))
 (p:defrule no-arguments (or (and spaces? (p:& #\newline))
                             (and spaces? (p:& #\&))
                             spaces?)
   (:constant nil))
 (p:defrule base-arguments (or (and first-argument (* next-argument)) spaces?)
   (:lambda (list)
     (if (null list)
         nil
         (list* (first list) (second list)))))
 
 ;;; Intrinsics
 
 (defmacro defintrinsics ((rule-name returning-rule-name non-returning-rule-name) &body clauses)
   `(progn
      ,@(loop :for clause :in clauses
           :collect `(defintrinsic ,@clause))
      (p:defrule ,returning-rule-name (or ,@(remove-nil
                                             (mapcar (lambda (clause)
                                                       (when (second clause)
                                                         (alexandria:symbolicate
                                                          'intrinsic- (first clause))))
                                                     clauses))))
      (p:defrule ,non-returning-rule-name (or ,@(remove-nil
                                                 (mapcar (lambda (clause)
                                                           (unless (second clause)
                                                             (alexandria:symbolicate
                                                              'intrinsic- (first clause))))
                                                         clauses))))
      (p:defrule ,rule-name (or ,returning-rule-name ,non-returning-rule-name))))
 
 (defmacro defintrinsic (sym returning &optional (min-arity 0) max-arity &rest names)
   (declare (ignore returning))
   (unless max-arity
     (setf max-arity *max-args*))
   (setf names 
         (if names
             (mapcar #'string-upcase names)
             (list (string sym))))
   `(p:defrule ,(alexandria:symbolicate 'intrinsic- sym)
        (and (p:? #\$) (or ,@(loop :for name :in names :collect `(p:~ ,name)))
             arguments)
      (:destructure (dollar name arguments)
        (declare (ignore dollar))
        (unless (<= ,min-arity (length arguments) ,max-arity)
          (error "Intrinsic ~A expects between ~A and ~A arguments but ~A were provided:~%~S"
                 name ,min-arity ,max-arity (length arguments) arguments))
-       (list* ',(intern (string sym) :lib) arguments))))
+       (list* ',(intern (string sym) "SUGAR-QSP.LIB") arguments))))
 
 (defintrinsics (intrinsic returning-intrinsic non-returning-intrinsic)
   ;; Transitions
   (goto%    nil 0 nil "gt" "goto")
   (xgoto%   nil 0 nil "xgt" "xgoto")
   ;; Variables
   (killvar  nil 0 2)
   ;; Expressions
   (obj      t   1 1)
   (loc      t   1 1)
   (no       t   1 1)
   ;; Basic
   (qspver   t   0 0)
   (curloc   t   0 0)
   (rand     t   1 2)
   (rnd      t   0 0)
   (qspmax   t   1 nil "max")
   (qspmin   t   1 nil "min")
   ;; Arrays
   (killall  nil 0 0)
   (copyarr  nil 2 4)
   (arrsize  t   1 1)
   (arrpos   t   2 3)
   (arrcomp  t   2 3)
   ;; Strings
   (len      t   1 1)
   (mid      t   2 3)
   (ucase    t   1 1)
   (lcase    t   1 1)
   (trim     t   1 1)
   (replace  t   2 3)
   (instr    t   2 3)
   (isnum    t   1 1)
   (val      t   1 1)
   (qspstr   t   1 1 "str")
   (strcomp  t   2 2)
   (strfind  t   2 3)
   (strpos   t   2 3)
   ;; IF
   (iif      t   2 3)
   ;; Subs
   (gosub    nil 1 nil "gosub" "gs")
   (func     t   1 nil)
   (exit     nil 0 0)
   ;; Jump
   (jump     nil 1 1)
   ;; Dynamic
   (dynamic  nil 1 nil)
   (dyneval  t   1 nil)
   ;; Sound
   (play     nil 1 2)
   (isplay   t   1 1)
   (close    nil 1 1)
   (closeall nil 0 0 "close all")
   ;; Main window
   (main-pl  nil 1 1 "*pl")
   (main-nl  nil 0 1 "*nl")
   (main-p   nil 1 1 "*p")
   (maintxt  t   0 0)
   (desc     t   1 1)
   (main-clear   nil 0 0 "*clear" "*clr")
   ;; Aux window
   (showstat nil 1 1)
-  (stat-pl   nil 1 1 "pl")
-  (stat-nl   nil 0 1 "nl")
-  (stat-p    nil 1 1 "p")
+  (stat-pl  nil 1 1 "pl")
+  (stat-nl  nil 0 1 "nl")
+  (stat-p   nil 1 1 "p")
   (stattxt  t   0 0)
   (stat-clear    nil 0 0 "clear" "clr")
   (cls      nil 0 0)
   ;; Dialog
   (msg      nil 1 1)
   ;; Acts
   (showacts nil 1 1)
-  (delact   nil 0 1 "delact" "del act")
-  (curact   t   0 0)
+  (delact   nil 1 1 "delact" "del act")
   (curacts  t   0 0)
+  (selact   t   0 0)
   (cla      nil 0 0)
   ;; Objects
   (showobjs nil 1 1)
   (addobj   nil 1 3 "addobj" "add obj")
   (delobj   nil 1 1 "delobj" "del obj")
   (killobj  nil 0 1)
   (countobj t   0 0)
   (getobj   t   1 1)
+  (selobj   t   0 0)
   ;; Menu
   (menu     nil 1 1)
   ;; Images
   (refint   nil 0 0)
   (view     nil 0 1)
   (img      nil 1)
   (*img     nil 1)
   ;; Fonts
   (rgb      t   3 3)
   ;; Input
   (showinput nil 1 1)
   (usertxt  t   0 0 "user_text" "usrtxt")
   (cmdclear nil 0 0 "cmdclear" "cmdclr")
   (input    t   1 1)
   ;; Files
   (openqst  nil 1 1)
   (addqst   nil 1 1 "addqst" "addlib" "inclib")
   (killqst  nil 1 1 "killqst" "dellib" "freelib")
   (opengame nil 0 0)
   (savegame nil 0 0)
   ;; Real time
   (wait     nil 1 1)
   (msecscount t 0 0)
   (settimer nil 1 1))
 
 ;;; Expression
 
 (p:defrule expression or-expr)
 
 (p:defrule or-expr (and and-expr (* (and spaces? or-op spaces? and-expr)))
   (:function do-binop))
 
 (p:defrule and-expr (and eq-expr (* (and spaces? and-op spaces? eq-expr)))
   (:function do-binop))
 
 (p:defrule eq-expr (and sum-expr (* (and spaces? (or "<=" ">=" "=<" "=>" "<>"
                                                      "=" "<" ">" "!")
                                          spaces? sum-expr)))
   (:function do-binop))
 
 (p:defrule sum-expr (and mod-expr (* (and spaces? (or #\+ #\-) spaces? mod-expr)))
   (:function do-binop))
 
 (p:defrule mod-expr (and mul-expr (* (and spaces? (p:~ "mod") spaces? mul-expr)))
   (:function do-binop))
 
 (p:defrule mul-expr (and unary-expr (* (and spaces? (or #\* #\/) spaces? unary-expr)))
   (:function do-binop))
 
 (p:defrule unary-expr (and (p:? (or #\+ #\-)) atom-expr)
   (:lambda (list)
     (let ((expr (remove-nil list)))
       (if (= 1 (length expr))
           (first expr)
           (intern-first expr)))))
 
 (p:defrule atom-expr (and (or variable literal returning-intrinsic paren-expr) spaces?)
   (:function first))
 
 (p:defrule paren-expr (and #\( spaces? expression spaces? #\))
   (:function third))
 
 (p:defrule or-op (p:~ "or")
   (:constant "or"))
 
 (p:defrule and-op (p:~ "and")
   (:constant "and"))
 
 ;;; Variables
 
 (p:defrule variable (and identifier (p:? array-index))
   (:destructure (id idx-raw)
     (let ((idx (case idx-raw
                  ((nil) 0)
                  (:last nil)
                  (t idx-raw))))
       (list 'lib:qspvar id idx))))
 
 (p:defrule array-index (and #\[ spaces? (p:? expression) spaces? #\])
   (:lambda (list)
     (or (third list) :last)))
 
 (p:defrule assignment (or kw-assignment plain-assignment op-assignment)
   (:destructure (qspvar eq expr)
     (declare (ignore eq))
     (list 'lib:set qspvar expr)))
 
 (p:defrule kw-assignment (and (or (p:~ "let") (p:~ "set")) spaces? (or op-assignment plain-assignment))
   (:function third))
 
 (p:defrule op-assignment (and variable spaces? (or "+" "-" "*" "/") #\= spaces? expression)
   (:destructure (qspvar ws1 op eq ws2 expr)
                 (declare (ignore ws1 ws2))
                 (list qspvar eq (intern-first (list op qspvar expr)))))
 
 (p:defrule plain-assignment (and variable spaces? #\= spaces? expression)
   (:function remove-nil))
 
 ;;; Non-string literals
 
 (p:defrule literal (or qsp-string brace-string number))
 
 (p:defrule number (+ (or #\0 #\1 #\2 #\3 #\4 #\5 #\6 #\7 #\8 #\9))
   (:lambda (list)
     (parse-integer (p:text list))))