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Merge remote-tracking branch 'origin/loops/tcl' into architecture
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giles
2026-05-08 22:55:21 +00:00
parent 55ecdf24bb 50b69bcbd0
commit f0c0a5e19f
3 changed files with 681 additions and 6 deletions
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142
hosts/ocaml/lib/sx_primitives.ml
View File

@@ -3632,6 +3632,148 @@ let () =
else "")))
else String trimmed);
(* exec-pipeline: takes a list of words like Tcl `exec` would receive.
Recognizes `|` as a stage separator and `> file`, `>> file`, `< file`,
`2>@1` (stderr→stdout), `2> file`. Returns trimmed stdout of the last
stage; raises Eval_error if the last stage exits non-zero. *)
register "exec-pipeline" (fun args ->
let items = match args with
| [List xs] | [ListRef { contents = xs }] -> xs
| _ -> raise (Eval_error "exec-pipeline: (word-list)")
in
let words = List.map (function
| String s -> s
| v -> Sx_types.inspect v
) items in
if words = [] then raise (Eval_error "exec: empty command");
let split_stages ws =
let rec loop acc cur = function
| [] -> List.rev (List.rev cur :: acc)
| "|" :: rest -> loop (List.rev cur :: acc) [] rest
| w :: rest -> loop acc (w :: cur) rest
in
loop [] [] ws
in
let extract_redirs ws =
let in_path = ref None in
let out_path = ref None in
let out_append = ref false in
let err_path = ref None in
let merge_err = ref false in
let cleaned = ref [] in
let rec loop = function
| [] -> ()
| "<" :: p :: rest -> in_path := Some p; loop rest
| ">" :: p :: rest -> out_path := Some p; out_append := false; loop rest
| ">>" :: p :: rest -> out_path := Some p; out_append := true; loop rest
| "2>@1" :: rest -> merge_err := true; loop rest
| "2>" :: p :: rest -> err_path := Some p; loop rest
| w :: rest -> cleaned := w :: !cleaned; loop rest
in
loop ws;
(List.rev !cleaned, !in_path, !out_path, !out_append, !err_path, !merge_err)
in
let stages = List.map extract_redirs (split_stages words) in
if stages = [] then raise (Eval_error "exec: no stages");
let n = List.length stages in
let pipes = Array.init (max 0 (n - 1)) (fun _ -> Unix.pipe ()) in
let (final_r, final_w) = Unix.pipe () in
let (errstash_r, errstash_w) = Unix.pipe () in
let pids = ref [] in
let close_safe fd = try Unix.close fd with _ -> () in
let open_in_redir = function
| None -> Unix.stdin
| Some path ->
(try Unix.openfile path [Unix.O_RDONLY] 0o644
with Unix.Unix_error (e, _, _) ->
raise (Eval_error ("exec: open <" ^ path ^ ": " ^ Unix.error_message e)))
in
let open_out_redir path append =
let flags = Unix.O_WRONLY :: Unix.O_CREAT :: (if append then [Unix.O_APPEND] else [Unix.O_TRUNC]) in
try Unix.openfile path flags 0o644
with Unix.Unix_error (e, _, _) ->
raise (Eval_error ("exec: open >" ^ path ^ ": " ^ Unix.error_message e))
in
let stages_arr = Array.of_list stages in
(try
Array.iteri (fun i (cleaned, ip, op, app, ep, merge) ->
if cleaned = [] then raise (Eval_error "exec: empty stage in pipeline");
let argv = Array.of_list cleaned in
let stdin_fd =
if i = 0 then open_in_redir ip
else fst pipes.(i - 1)
in
let stdout_fd =
if i = n - 1 then
(match op with
| None -> final_w
| Some path -> open_out_redir path app)
else snd pipes.(i)
in
let stderr_fd =
if merge then stdout_fd
else (match ep with
| None -> if i = n - 1 then errstash_w else Unix.stderr
| Some path -> open_out_redir path false)
in
let pid =
try Unix.create_process argv.(0) argv stdin_fd stdout_fd stderr_fd
with Unix.Unix_error (e, _, _) ->
raise (Eval_error ("exec: " ^ argv.(0) ^ ": " ^ Unix.error_message e))
in
pids := pid :: !pids;
if i > 0 then close_safe (fst pipes.(i - 1));
if i < n - 1 then close_safe (snd pipes.(i));
if i = 0 && ip <> None then close_safe stdin_fd;
if i = n - 1 && op <> None then close_safe stdout_fd;
if not merge && ep <> None then close_safe stderr_fd
) stages_arr
with e ->
close_safe final_r; close_safe final_w;
close_safe errstash_r; close_safe errstash_w;
Array.iter (fun (a,b) -> close_safe a; close_safe b) pipes;
raise e);
close_safe final_w;
close_safe errstash_w;
let buf = Buffer.create 256 in
let errbuf = Buffer.create 64 in
let chunk = Bytes.create 4096 in
let read_all fd target =
try
let stop = ref false in
while not !stop do
let r = Unix.read fd chunk 0 (Bytes.length chunk) in
if r = 0 then stop := true
else Buffer.add_subbytes target chunk 0 r
done
with _ -> ()
in
read_all final_r buf;
read_all errstash_r errbuf;
close_safe final_r;
close_safe errstash_r;
let exit_codes = List.rev_map (fun pid ->
let (_, st) = Unix.waitpid [] pid in
match st with
| Unix.WEXITED c -> c
| _ -> 1
) !pids in
let final_code = match List.rev exit_codes with
| [] -> 0
| last :: _ -> last
in
let s = Buffer.contents buf in
let trimmed =
if String.length s > 0 && s.[String.length s - 1] = '\n'
then String.sub s 0 (String.length s - 1) else s
in
if final_code <> 0 then
raise (Eval_error ("exec: pipeline last stage exited " ^ string_of_int final_code
^ (if Buffer.length errbuf > 0
then ": " ^ Buffer.contents errbuf
else "")))
else String trimmed);
(* === Sockets === wrapping Unix.socket/connect/bind/listen/accept *)
let resolve_inet_addr host =
if host = "" || host = "0.0.0.0" then Unix.inet_addr_any

392
lib/tcl/runtime.sx
View File

@@ -972,6 +972,15 @@
((equal? code-str "continue") (= rc 4))
(else (= rc (parse-int code-str))))))
; trap pattern is a list; matches errorcode list if pattern is a prefix.
(define tcl-try-trap-matches? (fn (pattern-str errorcode-str rc) (if (not (= rc 1)) false (let ((pat-elems (tcl-list-split pattern-str)) (ec-elems (tcl-list-split errorcode-str))) (if (> (len pat-elems) (len ec-elems)) false (let ((all-eq? (fn (i lim) (if (>= i lim) true (if (equal? (nth pat-elems i) (nth ec-elems i)) (all-eq? (+ i 1) lim) false))))) (all-eq? 0 (len pat-elems))))))))
; Brace if needs quoting for inclusion in a flat dict string.
(define tcl-try-brace-if-needed (fn (s) (if (or (equal? s "") (contains? (split s "") " ")) (str "{" s "}") s)))
; Build the -options dict that try clause varlist captures as 2nd arg.
(define tcl-try-build-opts (fn (rc rei rec) (str "-code " rc " -level 0 -errorcode " (tcl-try-brace-if-needed rec) " -errorinfo " (tcl-try-brace-if-needed rei))))
(define
tcl-cmd-try
(fn
@@ -979,7 +988,7 @@
(let
((script (first args)) (rest-args (rest args)))
(let
((parse-clauses (fn (remaining acc) (if (= 0 (len remaining)) acc (let ((kw (first remaining))) (cond ((equal? kw "on") (if (< (len remaining) 4) acc (parse-clauses (slice remaining 4 (len remaining)) (append acc (list {:body (nth remaining 3) :code (nth remaining 1) :type "on" :var (nth remaining 2)}))))) ((equal? kw "finally") (if (< (len remaining) 2) acc (parse-clauses (slice remaining 2 (len remaining)) (append acc (list {:body (nth remaining 1) :type "finally"}))))) (else acc))))))
((parse-clauses (fn (remaining acc) (if (= 0 (len remaining)) acc (let ((kw (first remaining))) (cond ((equal? kw "on") (if (< (len remaining) 4) acc (parse-clauses (slice remaining 4 (len remaining)) (append acc (list {:body (nth remaining 3) :code (nth remaining 1) :type "on" :var (nth remaining 2)}))))) ((equal? kw "trap") (if (< (len remaining) 4) acc (parse-clauses (slice remaining 4 (len remaining)) (append acc (list {:body (nth remaining 3) :pattern (nth remaining 1) :type "trap" :var (nth remaining 2)}))))) ((equal? kw "finally") (if (< (len remaining) 2) acc (parse-clauses (slice remaining 2 (len remaining)) (append acc (list {:body (nth remaining 1) :type "finally"}))))) (else acc))))))
(clauses (parse-clauses rest-args (list))))
(let
((sub-interp (assoc interp :code 0 :result ""))
@@ -989,9 +998,11 @@
(let
((rc (get result-interp :code))
(rv (get result-interp :result))
(rei (get result-interp :errorinfo))
(rec (get result-interp :errorcode))
(sub-output (get result-interp :output)))
(let
((find-clause (fn (cs) (if (= 0 (len cs)) nil (let ((c (first cs))) (if (and (equal? (get c :type) "on") (tcl-try-code-matches? (get c :code) rc)) c (find-clause (rest cs)))))))
((find-clause (fn (cs) (if (= 0 (len cs)) nil (let ((c (first cs))) (cond ((and (equal? (get c :type) "on") (tcl-try-code-matches? (get c :code) rc)) c) ((and (equal? (get c :type) "trap") (tcl-try-trap-matches? (get c :pattern) rec rc)) c) (else (find-clause (rest cs))))))))
(matched (find-clause clauses))
(finally-clause
(reduce
@@ -1001,7 +1012,7 @@
nil
clauses)))
(let
((after-handler (if (nil? matched) (assoc result-interp :output (str caller-output sub-output)) (let ((handler-interp (assoc result-interp :code 0 :output (str caller-output sub-output)))) (let ((bound-interp (if (equal? (get matched :var) "") handler-interp (tcl-var-set handler-interp (get matched :var) rv)))) (tcl-eval-string bound-interp (get matched :body)))))))
((after-handler (if (nil? matched) (assoc result-interp :output (str caller-output sub-output)) (let ((handler-interp (assoc result-interp :code 0 :output (str caller-output sub-output))) (vars (tcl-list-split (get matched :var)))) (let ((bound1 (if (>= (len vars) 1) (tcl-var-set handler-interp (first vars) rv) handler-interp))) (let ((bound2 (if (>= (len vars) 2) (tcl-var-set bound1 (nth vars 1) (tcl-try-build-opts rc rei rec)) bound1))) (tcl-eval-string bound2 (get matched :body))))))))
(let
((final-result (if (nil? finally-clause) after-handler (let ((fi (tcl-eval-string (assoc after-handler :code 0) (get finally-clause :body)))) (if (= (get fi :code) 0) (assoc fi :code (get after-handler :code) :result (get after-handler :result)) fi)))))
final-result))))))))))
@@ -1806,6 +1817,46 @@
(equal? s "off"))
"1"
"0"))
((equal? class "true")
(if
(or (equal? s "1") (equal? s "true") (equal? s "yes") (equal? s "on"))
"1"
"0"))
((equal? class "false")
(if
(or (equal? s "0") (equal? s "false") (equal? s "no") (equal? s "off"))
"1"
"0"))
((equal? class "xdigit")
(if
(= n 0)
"0"
(if
(reduce
(fn
(ok c)
(and
ok
(or
(tcl-expr-digit? c)
(or
(and (>= c "a") (<= c "f"))
(and (>= c "A") (<= c "F"))))))
true
chars)
"1"
"0")))
((equal? class "ascii")
(if
(= n 0)
"1"
(if
(reduce
(fn (ok c) (and ok (and (>= c " ") (<= c "~"))))
true
chars)
"1"
"0")))
(else "0")))))
; Build a Tcl list string from an SX list of string elements
@@ -1948,6 +1999,66 @@
((class (first rest-args)) (s (nth rest-args 1)))
(assoc interp :result (tcl-string-is class s))))
((equal? sub "cat") (assoc interp :result (join "" rest-args)))
((equal? sub "equal")
; string equal ?-nocase? ?-length n? s1 s2
(let
((nocase?
(reduce (fn (a w) (or a (equal? w "-nocase"))) false rest-args))
(length-pos
(let ((find-loop (fn (i) (cond ((>= i (- (len rest-args) 1)) -1) ((equal? (nth rest-args i) "-length") i) (else (find-loop (+ i 1))))))) (find-loop 0)))
(cleaned (filter (fn (w) (not (equal? w "-nocase"))) rest-args)))
(let
((cleaned2
(if
(>= length-pos 0)
(filter
(fn (w) (and (not (equal? w "-length")) (not (equal? w (nth rest-args (+ length-pos 1))))))
cleaned)
cleaned)))
(if
(< (len cleaned2) 2)
(error "string equal: wrong # args")
(let
((s1 (first cleaned2)) (s2 (nth cleaned2 1)))
(let
((c1 (if nocase? (join "" (map tcl-downcase-char (split s1 ""))) s1))
(c2 (if nocase? (join "" (map tcl-downcase-char (split s2 ""))) s2)))
(assoc interp :result (if (equal? c1 c2) "1" "0"))))))))
((equal? sub "totitle")
(let
((s (first rest-args)))
(let
((chars (split s "")))
(assoc
interp
:result (if
(= 0 (len chars))
""
(str
(tcl-upcase-char (first chars))
(join "" (map tcl-downcase-char (rest chars)))))))))
((equal? sub "reverse")
(let
((s (first rest-args)))
(assoc interp :result (join "" (reverse (split s ""))))))
((equal? sub "replace")
; string replace s first last ?newstring?
(let
((s (first rest-args))
(n (string-length (first rest-args)))
(fi (parse-int (nth rest-args 1)))
(li (parse-int (nth rest-args 2)))
(newstr (if (> (len rest-args) 3) (nth rest-args 3) "")))
(let
((f (if (< fi 0) 0 fi))
(l (if (>= li n) (- n 1) li)))
(if
(or (> f l) (>= f n))
(assoc interp :result s)
(let
((before (substring s 0 f))
(after (substring s (+ l 1) n)))
(assoc interp :result (str before newstr after)))))))
(else (error (str "string: unknown subcommand: " sub))))))))
; Resolve "end" index to numeric value given list length
@@ -3326,12 +3437,37 @@
(interp args)
(let ((_ (channel-flush (first args)))) (assoc interp :result ""))))
; exec cmd ?arg ...? — run external process, return stdout (newline-stripped)
; exec cmd ?arg ...? ?| cmd2 arg ...? ?> file? ?< file? ?2>@1?
; Runs external process(es), returns stdout. Pipelines via |, stdout
; redirection >/>>, stdin redirection <, stderr-to-stdout via 2>@1,
; stderr redirection 2> file. Routes through exec-pipeline if any
; shell metacharacter is present, else exec-process.
(define
tcl-cmd-exec
(fn
(interp args)
(assoc interp :result (exec-process args))))
(let
((has-pipeline?
(reduce
(fn
(acc w)
(or
acc
(or
(equal? w "|")
(or
(equal? w ">")
(or
(equal? w ">>")
(or
(equal? w "<")
(or (equal? w "2>") (equal? w "2>@1"))))))))
false
args)))
(assoc
interp
:result
(if has-pipeline? (exec-pipeline args) (exec-process args))))))
(define
tcl-cmd-fconfigure
(fn
@@ -3590,6 +3726,246 @@
(interp args)
(assoc (tcl-event-step interp 0) :result "")))
; ============================================================
; TclOO — minimal oo::class / oo::object (Phase 7d)
; ============================================================
; Class storage: interp :classes is a dict {name: class-record}
; class-record: {:methods (dict name => {:args :body}) :ctor :dtor :super}
; Object storage: interp :oo-objects is a dict {objname: {:class :slots}}
; Counter: interp :oo-counter — int for unique object names.
; Extract a literal value from a parsed Tcl word (compound, braced, quoted).
; Returns nil if the word is not literal (e.g., contains $-substitution).
(define
tcl-oo-word-value
(fn
(word)
(let
((t (get word :type)))
(cond
((equal? t "braced") (get word :value))
((equal? t "quoted") (get word :value))
((equal? t "compound")
(let
((parts (get word :parts)))
(let
((all-text?
(reduce
(fn (a p) (and a (equal? (get p :type) "text")))
true
parts)))
(if
all-text?
(join "" (map (fn (p) (get p :value)) parts))
nil))))
(else (get word :value))))))
; Recursive scan over parsed Tcl commands building a class record.
; Top-level so the recursive call resolves correctly.
(define
tcl-oo-scan-class-body
(fn
(cmds rec)
(if
(= 0 (len cmds))
rec
(let
((cmd (first cmds)))
(let
((words (get cmd :words)))
(if
(= 0 (len words))
(tcl-oo-scan-class-body (rest cmds) rec)
(let
((kw (tcl-oo-word-value (first words))))
(cond
((equal? kw "superclass")
(tcl-oo-scan-class-body
(rest cmds)
(assoc rec :super (tcl-oo-word-value (nth words 1)))))
((equal? kw "constructor")
(tcl-oo-scan-class-body
(rest cmds)
(assoc rec :ctor {:args (tcl-oo-word-value (nth words 1)) :body (tcl-oo-word-value (nth words 2))})))
((equal? kw "destructor")
(tcl-oo-scan-class-body
(rest cmds)
(assoc rec :dtor {:body (tcl-oo-word-value (nth words 1))})))
((equal? kw "method")
(let
((mname (tcl-oo-word-value (nth words 1)))
(margs (tcl-oo-word-value (nth words 2)))
(mbody (tcl-oo-word-value (nth words 3))))
(tcl-oo-scan-class-body
(rest cmds)
(assoc
rec
:methods
(assoc (or (get rec :methods) {}) mname {:args margs :body mbody})))))
(else (tcl-oo-scan-class-body (rest cmds) rec))))))))))
; Parse class body — a Tcl script with commands `superclass NAME`,
; `constructor {args} {body}`, `destructor {body}`, `method NAME {args} {body}`.
; Returns a class record dict.
(define
tcl-oo-parse-class-body
(fn
(body)
(tcl-oo-scan-class-body
(tcl-tokenize body)
{:methods {} :ctor nil :dtor nil :super nil})))
; Find a method by walking class chain (this->super->...).
; Returns the method record {:args :body} or nil.
(define
tcl-oo-find-method
(fn
(interp class-name mname)
(let
((classes (or (get interp :classes) {})))
(let
((cls (get classes class-name)))
(if
(nil? cls)
nil
(let
((m (get (or (get cls :methods) {}) mname)))
(if
(not (nil? m))
m
(let
((super (get cls :super)))
(if
(nil? super)
nil
(tcl-oo-find-method interp super mname))))))))))
; Dispatch a method call on object. Sets up `self`, `my`, `class` in proc body.
(define
tcl-oo-call-method
(fn
(interp objname mname call-args)
(let
((objects (or (get interp :oo-objects) {})))
(let
((obj (get objects objname)))
(if
(nil? obj)
(error (str "oo: no such object: " objname))
(let
((cls-name (get obj :class)))
(let
((m (tcl-oo-find-method interp cls-name mname)))
(if
(nil? m)
(error (str "oo: object \"" objname "\" has no method \"" mname "\""))
; Wrap method as a proc-call; bind self, args
(let
((pdef {:args (get m :args) :body (get m :body)}))
(let
((interp-with-self (tcl-var-set interp "self" objname)))
(tcl-call-proc interp-with-self mname pdef call-args)))))))))))
; Dispatcher registered as the object's command: handles `obj method ?args ...?`
; Uses a closure-style approach by having the dispatcher take obj-name baked in.
(define
tcl-oo-make-obj-dispatcher
(fn
(objname)
(fn
(interp args)
(if
(= 0 (len args))
(error (str "oo: " objname ": method name required"))
(tcl-oo-call-method interp objname (first args) (rest args))))))
; Class dispatcher — handles `ClsName new ?args ...?` and similar.
(define
tcl-oo-make-class-dispatcher
(fn
(cname)
(fn
(interp args)
(if
(= 0 (len args))
(error (str "oo: class " cname ": subcommand required"))
(let
((sub (first args)) (rest-args (rest args)))
(cond
((equal? sub "new")
; Allocate object; call constructor if present
(let
((counter (or (get interp :oo-counter) 0)))
(let
((objname (str "::oo::object" counter)))
(let
((classes (or (get interp :classes) {})))
(let
((cls (get classes cname)))
(let
((interp1
(assoc
interp
:oo-counter
(+ counter 1)
:oo-objects
(assoc (or (get interp :oo-objects) {}) objname {:class cname :slots {}}))))
(let
((dispatcher (tcl-oo-make-obj-dispatcher objname)))
(let
((interp2 (tcl-register interp1 objname dispatcher)))
(let
((interp3
(if
(nil? (get cls :ctor))
interp2
(let
((ctor (get cls :ctor)))
(let
((interp-with-self (tcl-var-set interp2 "self" objname)))
(let
((cr (tcl-call-proc interp-with-self "constructor" ctor rest-args)))
(assoc cr :result objname)))))))
(assoc interp3 :result objname))))))))))
(else (error (str "oo: class " cname " unknown subcommand: " sub)))))))))
; oo::class create NAME body
; args = (create NAME body)
(define
tcl-cmd-oo-class
(fn
(interp args)
(if
(< (len args) 2)
(error "oo::class: wrong # args")
(let
((sub (first args)))
(cond
((equal? sub "create")
(let
((cname (nth args 1))
(body (if (> (len args) 2) (nth args 2) "")))
(let
((rec (tcl-oo-parse-class-body body)))
(let
((classes (or (get interp :classes) {})))
(let
((with-class (assoc interp :classes (assoc classes cname rec))))
(let
((dispatcher (tcl-oo-make-class-dispatcher cname)))
(assoc
(tcl-register with-class cname dispatcher)
:result cname)))))))
(else (error (str "oo::class: unknown subcommand: " sub))))))))
; oo::object — placeholder; rarely used directly
(define
tcl-cmd-oo-object
(fn
(interp args)
(error "oo::object: not implemented as direct command")))
; ============================================================
; Socket: TCP client and server (Phase 5c)
; ============================================================
@@ -4192,6 +4568,10 @@
((i (tcl-register i "socket" tcl-cmd-socket)))
(let
((i (tcl-register i "_sock-do-accept" tcl-cmd-_sock-do-accept)))
(let
((i (tcl-register i "oo::class" tcl-cmd-oo-class)))
(let
((i (tcl-register i "oo::object" tcl-cmd-oo-object)))
(let
((i (tcl-register i "file" tcl-cmd-file)))
(let
@@ -4203,4 +4583,4 @@
(tcl-register
i
"array"
tcl-cmd-array))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
tcl-cmd-array))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))

153
lib/tcl/tests/idioms.sx
View File

@@ -524,6 +524,159 @@
(get (run "exec /bin/echo -n test") :result)
"test")
; 83-87. Phase 7a try/trap with varlist
(ok "try-trap-prefix-match"
(get
(run
"try {throw {ARITH DIVZERO} divide-by-zero} trap {ARITH} {res} {set caught $res}")
:result)
"divide-by-zero")
(ok "try-trap-full-pattern"
(get
(run
"try {throw {FOO BAR} bad} trap {FOO BAR} {res} {return matched-foo-bar}")
:result)
"matched-foo-bar")
(ok "try-on-error-opts"
(get
(run
"try {error oops} on error {res opts} {dict get $opts -code}")
:result)
"1")
(ok "try-trap-no-match-falls-through"
(get
(run
"set caught notrun\ncatch {try {throw {NOPE} bad} trap {OTHER} {r} {set caught matched}}\nset caught")
:result)
"notrun")
(ok "try-trap-then-on-error"
(get
(run
"try {error generic} trap {SPECIFIC} {r} {return trap-fired} on error {r} {return on-error-fired}")
:result)
"on-error-fired")
; 88-92. Phase 7b exec pipelines + redirection
(ok "exec-pipeline-tr"
(get (run "exec echo hello world | tr a-z A-Z") :result)
"HELLO WORLD")
(ok "exec-pipeline-wc"
(get (run "exec /bin/echo abc | wc -c") :result)
"4")
(ok "exec-redirect-stdout"
(get
(run
"set f /tmp/tcl-7b-out.txt\nexec echo hello > $f\nset r [exec cat $f]\nfile delete $f\nreturn $r")
:result)
"hello")
(ok "exec-redirect-stdin"
(get
(run
"set f /tmp/tcl-7b-in.txt\nset c [open $f w]\nputs -nonewline $c hi\nclose $c\nset r [exec cat < $f]\nfile delete $f\nreturn $r")
:result)
"hi")
(ok "exec-pipeline-three-stages"
(get (run "exec echo {alpha beta gamma} | tr { } \\n | wc -l") :result)
"3")
; 93-99. Phase 7c string command audit
(ok "string-equal"
(get (run "string equal hello hello") :result)
"1")
(ok "string-equal-nocase"
(get (run "string equal -nocase HELLO hello") :result)
"1")
(ok "string-totitle"
(get (run "string totitle hello") :result)
"Hello")
(ok "string-reverse"
(get (run "string reverse hello") :result)
"olleh")
(ok "string-replace"
(get (run "string replace hello 1 3 ZZZ") :result)
"hZZZo")
(ok "string-is-xdigit-yes"
(get (run "string is xdigit ff00aa") :result)
"1")
(ok "string-is-true-yes"
(get (run "string is true yes") :result)
"1")
; 100-105. Phase 7e regexp anchoring/boundary audit
(ok "regexp-anchor-start"
(get (run "regexp {^hello} hello-world") :result)
"1")
(ok "regexp-anchor-end"
(get (run "regexp {world$} hello-world") :result)
"1")
(ok "regexp-word-boundary"
(get (run "regexp {\\bword\\b} \"the word here\"") :result)
"1")
(ok "regexp-nocase"
(get (run "regexp -nocase {HELLO} hello") :result)
"1")
(ok "regexp-capture-var"
(get (run "regexp {[0-9]+} abc123def captured\nset captured") :result)
"123")
(ok "regsub-all"
(get (run "regsub -all {[0-9]+} a1b22c333 X") :result)
"aXbXcX")
; 106-110. Phase 7d TclOO basics
(ok "oo-class-method"
(get
(run
"oo::class create C {\nmethod get {} { return 42 }\n}\nset c [C new]\n$c get")
:result)
"42")
(ok "oo-constructor"
(get
(run
"oo::class create G {\nconstructor {n} { set ::gname $n }\nmethod hello {} { return [string cat \"hi \" $::gname] }\n}\nset g [G new World]\n$g hello")
:result)
"hi World")
(ok "oo-inheritance-overridden"
(get
(run
"oo::class create Animal {\nmethod sound {} { return generic }\n}\noo::class create Dog {\nsuperclass Animal\nmethod sound {} { return woof }\n}\nset d [Dog new]\n$d sound")
:result)
"woof")
(ok "oo-inheritance-inherited"
(get
(run
"oo::class create Animal {\nmethod sound {} { return generic }\n}\noo::class create Cat {\nsuperclass Animal\n}\nset c [Cat new]\n$c sound")
:result)
"generic")
(ok "oo-multiple-instances"
(get
(run
"oo::class create N {\nconstructor {x} { set ::nval $x }\nmethod get {} { return $::nval }\n}\nset a [N new 1]\nset b [N new 99]\n$b get")
:result)
"99")
(dict
"passed"
tcl-idiom-pass