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Use :when as :enable-funcion in tempel-abbrev-mode #149

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Use :when as :enable-funcion in tempel-abbrev-mode #149

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06f94c2
Added feature: :enable-function
Ursus-GIT5805 Oct 22, 2024
d69f37c
Use :when instead of :enable-function for tempel-abbrev-mode
Ursus-GIT5805 Oct 22, 2024
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83 changes: 53 additions & 30 deletions tempel.el
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Original file line number Diff line number Diff line change
Expand Up @@ -483,25 +483,27 @@ This is meant to be a source in `tempel-template-sources'."
(unless (equal (car tempel--path-templates) timestamps)
(setq tempel--path-templates (cons timestamps
(mapcan #'tempel--file-read files))))))

(cl-loop
for (modes plist . templates) in (cdr tempel--path-templates)
if (tempel--condition-p modes plist)
append templates))

(defun tempel--condition-p (modes plist)
"Return non-nil if one of MODES matches and the PLIST condition is satisfied."
(and
(cl-loop
for m in modes thereis
(or (eq m #'fundamental-mode)
(derived-mode-p m)
(when-let ((remap (alist-get m (bound-and-true-p major-mode-remap-alist))))
(derived-mode-p remap))))
(or (not (plist-member plist :when))
(save-excursion
(save-restriction
(save-match-data
(eval (plist-get plist :when) 'lexical)))))))
if (tempel--mode-matches-p modes)
collect (list modes plist templates)))

(defun tempel--mode-matches-p (modes)
"Return non-nil if one of MODES matches."
(cl-loop
for m in modes thereis
(or (eq m #'fundamental-mode)
(derived-mode-p m)
(when-let ((remap (alist-get m (bound-and-true-p major-mode-remap-alist))))
(derived-mode-p remap)))))

(defun tempel--eval-condition (condition)
"Return non-nil if CONDITION is satisfied."
(save-excursion
(save-restriction
(save-match-data
(eval condition 'lexical)))))

(defun tempel--templates ()
"Return templates for current mode."
Expand All @@ -516,6 +518,16 @@ This is meant to be a source in `tempel-template-sources'."
nil))
result))


(defun tempel--enabled-templates ()
"Return enabled templates for the current mode."
(cl-loop
for (modes plist templates) in (tempel--templates)
if (tempel--eval-condition (if-let (condition (plist-get plist :when))
(tempel--eval-condition condition)
t))
append templates))

(defun tempel--region ()
"Return region bounds."
(when (use-region-p)
Expand Down Expand Up @@ -680,7 +692,7 @@ command."
(interactive (list t))
(if interactive
(tempel--interactive #'tempel-expand)
(when-let ((templates (tempel--templates))
(when-let ((templates (tempel--enabled-templates))
(bounds (tempel--prefix-bounds))
(name (buffer-substring-no-properties
(car bounds) (cdr bounds)))
Expand All @@ -707,7 +719,7 @@ Capf, otherwise like an interactive completion command."
(insert tempel-trigger-prefix))
(tempel--interactive #'tempel-complete))
(let ((region (tempel--region)))
(when-let ((templates (tempel--templates))
(when-let ((templates (tempel--enabled-templates))
(bounds (or (and (not region) (tempel--prefix-bounds))
(and (not tempel-trigger-prefix) (cons (point) (point))))))
(list (car bounds) (cdr bounds)
Expand Down Expand Up @@ -738,7 +750,7 @@ If called interactively, select a template with `completing-read'."
(interactive (list nil))
(tempel--insert
(if (consp template-or-name) template-or-name
(let* ((templates (or (tempel--templates)
(let* ((templates (or (tempel--enabled-templates)
(error "Tempel: No templates for %s" major-mode)))
(completion-extra-properties
(and tempel-insert-annotation
Expand Down Expand Up @@ -789,16 +801,27 @@ If called interactively, select a template with `completing-read'."
(default-value 'abbrev-minor-mode-table-alist))
(kill-local-variable 'abbrev-minor-mode-table-alist))
(when tempel-abbrev-mode
(let ((table (make-abbrev-table)))
(dolist (template (tempel--templates))
(let* ((name (symbol-name (car template)))
(hook (make-symbol name)))
(fset hook (apply-partially #'tempel--abbrev-hook name (cdr template)))
(put hook 'no-self-insert t)
(define-abbrev table name 'Template hook :system t)))
(setq-local abbrev-minor-mode-table-alist
(cons `(tempel-abbrev-mode . ,table)
abbrev-minor-mode-table-alist)))))
(cl-loop
for (modes plist templates) in (tempel--templates)
do (let ((table (make-abbrev-table)))
(dolist (template templates)
(let* ((name (symbol-name (car template)))
(hook (make-symbol name)))
(fset hook (apply-partially #'tempel--abbrev-hook name (cdr template)))
(put hook 'no-self-insert t)
(define-abbrev table name 'Template hook :system t)))

(when-let (condition (plist-get plist :when))
(abbrev-table-put table
:enable-function
(lambda ()
(tempel--eval-condition condition))))


(setq-local abbrev-minor-mode-table-alist
(cons `(tempel-abbrev-mode . ,table)
abbrev-minor-mode-table-alist))
))))

;;;###autoload
(define-globalized-minor-mode global-tempel-abbrev-mode
Expand Down