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[Fix #57] Add inf-clojure-meta #157

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[Fix #57] Add inf-clojure-meta #157

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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
## master (unreleased)

* [#135](https://github.com/clojure-emacs/inf-clojure/pull/135): Improve command sanitation code.
* [#157](https://github.com/clojure-emacs/inf-clojure/pull/157): Add `inf-clojure-meta`

## 2.1.0 (2018-01-02)

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42 changes: 42 additions & 0 deletions inf-clojure.el
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Expand Up @@ -1099,6 +1099,39 @@ If you are using REPL types, it will pickup the most approapriate

(define-obsolete-variable-alias 'inf-clojure-macroexpand-1-command 'inf-clojure-macroexpand-1-form "2.0.0")

;;; Metadata
;;; ===================
(defcustom inf-clojure-meta-format
"(clojure.core/meta %s)"
"Form to retrieve metadata of another form."
:type 'string
:safe #'stringp
:package-version '(inf-clojure . "2.2.0"))

(defcustom inf-clojure-meta-format-planck
"(meta %s)"
"Planck form to retrieve metadata of another form."
:type 'string
:safe #'stringp
:package-version '(inf-clojure . "2.2.0"))

(defcustom inf-clojure-meta-format-lumo
"(meta %s)"
"Lumo form to retrieve metadata of another form."
:type 'string
:safe #'stringp
:package-version '(inf-clojure . "2.2.0"))

(defun inf-clojure-meta-form (proc)
"Return the form for retrieving metadata in the Inf-Clojure PROC.
If you are using REPL types, it will pickup the most appropriate
`inf-clojure-meta-format` variant."
(inf-clojure--sanitize-command
(pcase (inf-clojure--set-repl-type proc)
(`lumo inf-clojure-meta-format-lumo)
(`planck inf-clojure-meta-format-planck)
(_ inf-clojure-meta-format))))

;;; Ancillary functions
;;; ===================

Expand Down Expand Up @@ -1345,6 +1378,15 @@ thing. See variable `inf-clojure-apropos-form'."
(let ((proc (inf-clojure-proc)))
(inf-clojure--send-string proc (format (inf-clojure-apropos-form proc) expr))))

(defun inf-clojure-meta ()
"Send a form to the inferior Clojure to show its metadata."
(interactive)
(let ((proc (inf-clojure-proc))
(last-sexp (buffer-substring-no-properties (save-excursion (backward-sexp) (point)) (point))))
(inf-clojure--send-string
proc
(format (inf-clojure-meta-form proc) last-sexp))))

(defun inf-clojure-macroexpand (&optional macro-1)
"Send a form to the inferior Clojure for macro expansion.
See variable `inf-clojure-macroexpand-form'.
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