Files
rose-ash/shared/static/wasm/sx/hs-tokenizer.sx
giles 601fdc1c34 HS take command: class/attr with+giving, attr removal from scope, giving keyword
- tokenizer: add 'giving' as keyword so parse-take-cmd can detect it.
- parser.sx parse-take-cmd: loop over 'with <class>' / 'giving <class>' /
  'from <sel>' / 'for <tgt>' clauses in any order for both the class and
  attribute cases. Emits uniform (take! kind name from-sel for-tgt
  attr-val with-val) 7-slot AST.
- compiler emit-take: pass with-cls for the class case through to runtime.
- runtime hs-take!: with a class 'with' replacement, toggle both classes
  across scope + target. For attribute take, always strip the attr from
  the scope 'others' (setting to with-val if given, otherwise removing).
- generator pw-body: translate evaluate(() => document.querySelector(s).
  click()) and .dispatchEvent(new Event('name', …)) into dom-dispatch ops
  so bubbling-click assertions in 'parent takes…' tests work.
- generator toHaveClass: strip JS regex word-boundaries (\\b) from the
  expected class name.
- shared/static/wasm/sx/dom.sx: dom-child-list / dom-child-nodes mirror
  the dom-query-all SX-list passthrough — childNodes arrives pre-SXified.

Net: take 6→15 (100%), remove 16→17, fetch 11→15.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-23 16:51:17 +00:00

624 lines
18 KiB
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;; _hyperscript tokenizer — produces token stream from hyperscript source
;;
;; Tokens: {:type T :value V :pos P}
;; Types: "keyword" "ident" "number" "string" "class" "id" "attr" "style"
;; "selector" "op" "dot" "paren-open" "paren-close" "bracket-open"
;; "bracket-close" "brace-open" "brace-close" "comma" "colon"
;; "template" "local" "eof"
;; ── Token constructor ─────────────────────────────────────────────
(define hs-make-token (fn (type value pos) {:pos pos :value value :type type}))
;; ── Character predicates ──────────────────────────────────────────
(define hs-digit? (fn (c) (and (>= c "0") (<= c "9"))))
(define
hs-letter?
(fn (c) (or (and (>= c "a") (<= c "z")) (and (>= c "A") (<= c "Z")))))
(define hs-ident-start? (fn (c) (or (hs-letter? c) (= c "_") (= c "$"))))
(define
hs-ident-char?
(fn
(c)
(or (hs-letter? c) (hs-digit? c) (= c "_") (= c "$") (= c "-"))))
(define hs-ws? (fn (c) (or (= c " ") (= c "\t") (= c "\n") (= c "\r"))))
;; ── Keyword set ───────────────────────────────────────────────────
(define
hs-keywords
(list
"on"
"end"
"set"
"to"
"put"
"into"
"before"
"after"
"add"
"remove"
"toggle"
"if"
"else"
"otherwise"
"then"
"from"
"in"
"of"
"for"
"until"
"wait"
"send"
"trigger"
"call"
"get"
"take"
"log"
"hide"
"show"
"repeat"
"while"
"times"
"forever"
"break"
"continue"
"return"
"throw"
"catch"
"finally"
"def"
"tell"
"make"
"fetch"
"as"
"with"
"every"
"or"
"and"
"not"
"is"
"no"
"the"
"my"
"me"
"it"
"its"
"result"
"true"
"false"
"null"
"when"
"between"
"at"
"by"
"queue"
"elsewhere"
"event"
"target"
"detail"
"sender"
"index"
"indexed"
"increment"
"decrement"
"append"
"settle"
"transition"
"over"
"closest"
"next"
"previous"
"first"
"last"
"random"
"pick"
"empty"
"clear"
"swap"
"open"
"close"
"exists"
"matches"
"contains"
"do"
"unless"
"you"
"your"
"new"
"init"
"start"
"go"
"js"
"less"
"than"
"greater"
"class"
"anything"
"install"
"measure"
"behavior"
"called"
"render"
"eval"
"I"
"am"
"does"
"some"
"mod"
"equal"
"equals"
"really"
"include"
"includes"
"contain"
"undefined"
"exist"
"match"
"beep"
"where"
"sorted"
"mapped"
"split"
"joined"
"descending"
"ascending"
"scroll"
"select"
"reset"
"default"
"halt"
"precedes"
"precede"
"follow"
"follows"
"ignoring"
"case"
"changes"
"focus"
"blur"
"dom"
"morph"
"using"
"giving"))
(define hs-keyword? (fn (word) (some (fn (k) (= k word)) hs-keywords)))
;; ── Main tokenizer ────────────────────────────────────────────────
(define
hs-tokenize
(fn
(src)
(let
((tokens (list)) (pos 0) (src-len (len src)))
(define
hs-peek
(fn
(offset)
(if (< (+ pos offset) src-len) (nth src (+ pos offset)) nil)))
(define hs-cur (fn () (hs-peek 0)))
(define hs-advance! (fn (n) (set! pos (+ pos n))))
(define
skip-ws!
(fn
()
(when
(and (< pos src-len) (hs-ws? (hs-cur)))
(hs-advance! 1)
(skip-ws!))))
(define
skip-comment!
(fn
()
(when
(and (< pos src-len) (not (= (hs-cur) "\n")))
(hs-advance! 1)
(skip-comment!))))
(define
read-ident
(fn
(start)
(when
(and (< pos src-len) (hs-ident-char? (hs-cur)))
(hs-advance! 1)
(read-ident start))
(slice src start pos)))
(define
read-number
(fn
(start)
(when
(and (< pos src-len) (hs-digit? (hs-cur)))
(hs-advance! 1)
(read-number start))
(when
(and
(< pos src-len)
(= (hs-cur) ".")
(< (+ pos 1) src-len)
(hs-digit? (hs-peek 1)))
(hs-advance! 1)
(define
read-frac
(fn
()
(when
(and (< pos src-len) (hs-digit? (hs-cur)))
(hs-advance! 1)
(read-frac))))
(read-frac))
(do
(when
(and
(< pos src-len)
(or (= (hs-cur) "e") (= (hs-cur) "E"))
(or
(and (< (+ pos 1) src-len) (hs-digit? (hs-peek 1)))
(and
(< (+ pos 2) src-len)
(or (= (hs-peek 1) "+") (= (hs-peek 1) "-"))
(hs-digit? (hs-peek 2)))))
(hs-advance! 1)
(when
(and
(< pos src-len)
(or (= (hs-cur) "+") (= (hs-cur) "-")))
(hs-advance! 1))
(define
read-exp-digits
(fn
()
(when
(and (< pos src-len) (hs-digit? (hs-cur)))
(hs-advance! 1)
(read-exp-digits))))
(read-exp-digits))
(let
((num-end pos))
(when
(and
(< pos src-len)
(or (= (hs-cur) "m") (= (hs-cur) "s")))
(if
(and
(= (hs-cur) "m")
(< (+ pos 1) src-len)
(= (hs-peek 1) "s"))
(hs-advance! 2)
(when (= (hs-cur) "s") (hs-advance! 1))))
(slice src start pos)))))
(define
read-string
(fn
(quote-char)
(let
((chars (list)))
(hs-advance! 1)
(define
loop
(fn
()
(cond
(>= pos src-len)
nil
(= (hs-cur) "\\")
(do
(hs-advance! 1)
(when
(< pos src-len)
(let
((ch (hs-cur)))
(cond
(= ch "n")
(append! chars "\n")
(= ch "t")
(append! chars "\t")
(= ch "\\")
(append! chars "\\")
(= ch quote-char)
(append! chars quote-char)
:else (do (append! chars "\\") (append! chars ch)))
(hs-advance! 1)))
(loop))
(= (hs-cur) quote-char)
(hs-advance! 1)
:else (do (append! chars (hs-cur)) (hs-advance! 1) (loop)))))
(loop)
(join "" chars))))
(define
read-template
(fn
()
(let
((chars (list)))
(hs-advance! 1)
(define
loop
(fn
()
(cond
(>= pos src-len)
nil
(= (hs-cur) "`")
(hs-advance! 1)
(and
(= (hs-cur) "$")
(< (+ pos 1) src-len)
(= (hs-peek 1) "{"))
(do
(append! chars "${")
(hs-advance! 2)
(let
((depth 1))
(define
inner
(fn
()
(when
(and (< pos src-len) (> depth 0))
(cond
(= (hs-cur) "{")
(do
(set! depth (+ depth 1))
(append! chars (hs-cur))
(hs-advance! 1)
(inner))
(= (hs-cur) "}")
(do
(set! depth (- depth 1))
(when (> depth 0) (append! chars (hs-cur)))
(hs-advance! 1)
(when (> depth 0) (inner)))
:else (do
(append! chars (hs-cur))
(hs-advance! 1)
(inner))))))
(inner))
(append! chars "}")
(loop))
:else (do (append! chars (hs-cur)) (hs-advance! 1) (loop)))))
(loop)
(join "" chars))))
(define
read-selector
(fn
()
(let
((chars (list)))
(hs-advance! 1)
(define
loop
(fn
()
(cond
(>= pos src-len)
nil
(and
(= (hs-cur) "/")
(< (+ pos 1) src-len)
(= (hs-peek 1) ">"))
(hs-advance! 2)
:else (do (append! chars (hs-cur)) (hs-advance! 1) (loop)))))
(loop)
(join "" chars))))
(define
read-class-name
(fn
(start)
(when
(and
(< pos src-len)
(or
(hs-ident-char? (hs-cur))
(= (hs-cur) ":")
(= (hs-cur) "[")
(= (hs-cur) "]")))
(hs-advance! 1)
(read-class-name start))
(slice src start pos)))
(define
hs-emit!
(fn
(type value start)
(append! tokens (hs-make-token type value start))))
(define
scan!
(fn
()
(skip-ws!)
(when
(< pos src-len)
(let
((ch (hs-cur)) (start pos))
(cond
(and (= ch "-") (< (+ pos 1) src-len) (= (hs-peek 1) "-"))
(do (hs-advance! 2) (skip-comment!) (scan!))
(and (= ch "/") (< (+ pos 1) src-len) (= (hs-peek 1) "/"))
(do (hs-advance! 2) (skip-comment!) (scan!))
(and
(= ch "<")
(< (+ pos 1) src-len)
(not (= (hs-peek 1) "="))
(or
(hs-letter? (hs-peek 1))
(= (hs-peek 1) ".")
(= (hs-peek 1) "#")
(= (hs-peek 1) "[")
(= (hs-peek 1) "*")
(= (hs-peek 1) ":")))
(do (hs-emit! "selector" (read-selector) start) (scan!))
(and (= ch ".") (< (+ pos 1) src-len) (= (hs-peek 1) "."))
(do (hs-emit! "op" ".." start) (hs-advance! 2) (scan!))
(and
(= ch ".")
(< (+ pos 1) src-len)
(or
(hs-letter? (hs-peek 1))
(= (hs-peek 1) "-")
(= (hs-peek 1) "_")))
(do
(hs-advance! 1)
(hs-emit! "class" (read-class-name pos) start)
(scan!))
(and
(= ch "#")
(< (+ pos 1) src-len)
(hs-ident-start? (hs-peek 1)))
(do
(hs-advance! 1)
(hs-emit! "id" (read-ident pos) start)
(scan!))
(and
(= ch "@")
(< (+ pos 1) src-len)
(hs-ident-char? (hs-peek 1)))
(do
(hs-advance! 1)
(hs-emit! "attr" (read-ident pos) start)
(scan!))
(and
(= ch "^")
(< (+ pos 1) src-len)
(hs-ident-char? (hs-peek 1)))
(do
(hs-advance! 1)
(hs-emit! "hat" (read-ident pos) start)
(scan!))
(and
(= ch "~")
(< (+ pos 1) src-len)
(hs-letter? (hs-peek 1)))
(do
(hs-advance! 1)
(hs-emit! "component" (str "~" (read-ident pos)) start)
(scan!))
(and
(= ch "*")
(< (+ pos 1) src-len)
(hs-letter? (hs-peek 1)))
(do
(hs-advance! 1)
(hs-emit! "style" (read-ident pos) start)
(scan!))
(and
(= ch ":")
(< (+ pos 1) src-len)
(hs-ident-start? (hs-peek 1)))
(do
(hs-advance! 1)
(hs-emit! "local" (read-ident pos) start)
(scan!))
(or
(= ch "\"")
(and
(= ch "'")
(not
(and
(< (+ pos 1) src-len)
(= (hs-peek 1) "s")
(or
(>= (+ pos 2) src-len)
(not (hs-ident-char? (hs-peek 2))))))))
(do (hs-emit! "string" (read-string ch) start) (scan!))
(= ch "`")
(do (hs-emit! "template" (read-template) start) (scan!))
(hs-digit? ch)
(do (hs-emit! "number" (read-number start) start) (scan!))
(hs-ident-start? ch)
(do
(let
((word (read-ident start)))
(hs-emit!
(if (hs-keyword? word) "keyword" "ident")
word
start))
(scan!))
(and
(or (= ch "=") (= ch "!") (= ch "<") (= ch ">"))
(< (+ pos 1) src-len)
(= (hs-peek 1) "="))
(do
(if
(and
(or (= ch "=") (= ch "!"))
(< (+ pos 2) src-len)
(= (hs-peek 2) "="))
(do (hs-emit! "op" (str ch "==") start) (hs-advance! 3))
(do (hs-emit! "op" (str ch "=") start) (hs-advance! 2)))
(scan!))
(and
(= ch "'")
(< (+ pos 1) src-len)
(= (hs-peek 1) "s")
(or
(>= (+ pos 2) src-len)
(not (hs-ident-char? (hs-peek 2)))))
(do (hs-emit! "op" "'s" start) (hs-advance! 2) (scan!))
(= ch "(")
(do
(hs-emit! "paren-open" "(" start)
(hs-advance! 1)
(scan!))
(= ch ")")
(do
(hs-emit! "paren-close" ")" start)
(hs-advance! 1)
(scan!))
(= ch "[")
(do
(hs-emit! "bracket-open" "[" start)
(hs-advance! 1)
(scan!))
(= ch "]")
(do
(hs-emit! "bracket-close" "]" start)
(hs-advance! 1)
(scan!))
(= ch "{")
(do
(hs-emit! "brace-open" "{" start)
(hs-advance! 1)
(scan!))
(= ch "}")
(do
(hs-emit! "brace-close" "}" start)
(hs-advance! 1)
(scan!))
(= ch ",")
(do (hs-emit! "comma" "," start) (hs-advance! 1) (scan!))
(= ch "+")
(do (hs-emit! "op" "+" start) (hs-advance! 1) (scan!))
(= ch "-")
(do (hs-emit! "op" "-" start) (hs-advance! 1) (scan!))
(= ch "/")
(do (hs-emit! "op" "/" start) (hs-advance! 1) (scan!))
(= ch "=")
(do (hs-emit! "op" "=" start) (hs-advance! 1) (scan!))
(= ch "<")
(do (hs-emit! "op" "<" start) (hs-advance! 1) (scan!))
(= ch ">")
(do (hs-emit! "op" ">" start) (hs-advance! 1) (scan!))
(= ch "!")
(do (hs-emit! "op" "!" start) (hs-advance! 1) (scan!))
(= ch "*")
(do (hs-emit! "op" "*" start) (hs-advance! 1) (scan!))
(= ch "%")
(do (hs-emit! "op" "%" start) (hs-advance! 1) (scan!))
(= ch ".")
(do (hs-emit! "dot" "." start) (hs-advance! 1) (scan!))
(= ch "\\")
(do (hs-emit! "op" "\\" start) (hs-advance! 1) (scan!))
(= ch ":")
(do (hs-emit! "colon" ":" start) (hs-advance! 1) (scan!))
(= ch "|")
(do (hs-emit! "op" "|" start) (hs-advance! 1) (scan!))
:else (do (hs-advance! 1) (scan!)))))))
(scan!)
(hs-emit! "eof" nil pos)
tokens)))