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Fix: Multiline input broken in Julia executable folds #15

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Fix: Multiline input broken in Julia executable folds #15

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29 changes: 25 additions & 4 deletions progs/init-julia.scm
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; MODULE : init-julia.scm
;; DESCRIPTION : Initialize the julia plugin
Expand All @@ -9,7 +9,7 @@
;; It comes WITHOUT ANY WARRANTY WHATSOEVER. For details, see the file LICENSE
;; in the root directory or <http://www.gnu.org/licenses/gpl-3.0.html>.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(define (julia-serialize lan t)
(with u (pre-serialize lan t)
Expand Down Expand Up @@ -37,5 +37,26 @@
(:tab-completion #t)
(:session "Julia"))

(when (supports-julia?)
(plugin-input-converters julia))
;; NOTE: We intentionally do NOT call (plugin-input-converters julia) here.
;;
;; Calling (plugin-input-converters julia) — even with no rules — registers
;; "julia" into the `plugin-input-converters%` logic group. The predicate
;; `plugin-supports-math-input-ref` (defined in plugin-convert.scm) checks
;; exactly that group:
;;
;; (tm-define (plugin-supports-math-input-ref key)
;; (lazy-input-converter-force key)
;; (logic-in? key plugin-input-converters%)) ; <-- the check
;;
;; When it returns #t, `plugin-preprocess` (in plugin-eval.scm) converts the
;; input tree through `plugin-math-input`, which flattens the document tree
;; into a single math expression and strips all newline characters. This
;; breaks multiline code in executable folds (Insert → Fold → Executable).
;;
;; Julia's custom `julia-serialize` serializer already handles the full
;; input tree correctly via `texmacs->code` with "SourceCode" style, so
;; math-input pre-processing is not needed and must be kept disabled.
;;
;; References:
;; https://github.com/mgubi/tm-julia/issues/12