2020-09-01 14:44:18 +02:00
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;;; symbol.el --- Library for working with symbols -*- lexical-binding: t -*-
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2020-09-01 00:28:47 +02:00
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2019-10-09 13:13:56 +02:00
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;; Author: William Carroll <wpcarro@gmail.com>
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2020-09-01 00:28:47 +02:00
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;; Version: 0.0.1
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;; Package-Requires: ((emacs "24"))
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2019-10-09 13:13:56 +02:00
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;;; Commentary:
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;; Library for working with symbols.
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;;; Code:
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2020-09-01 00:28:47 +02:00
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Dependencies
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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2019-10-09 13:13:56 +02:00
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(require 'string)
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2020-09-01 00:28:47 +02:00
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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2019-10-09 13:13:56 +02:00
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;; Symbols
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2020-09-01 00:28:47 +02:00
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(defun symbol-as-string (callback x)
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2019-10-09 13:13:56 +02:00
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"Treat the symbol, X, as a string while applying CALLBACK to it.
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Coerce back to a symbol on the way out."
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(->> x
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#'symbol-name
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callback
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#'intern))
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2020-09-01 00:28:47 +02:00
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(defun symbol-to-string (x)
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2019-10-09 13:13:56 +02:00
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"Map `X' into a string."
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2020-09-01 00:28:47 +02:00
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(string-<-symbol x))
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2019-10-09 13:13:56 +02:00
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2020-09-01 00:28:47 +02:00
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(defun symbol-hookify (x)
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"Append \"-hook\" to X when X is a symbol."
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2020-09-01 00:28:47 +02:00
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(symbol-as-string #'string-hookify x))
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2019-10-09 13:13:56 +02:00
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2020-09-01 00:28:47 +02:00
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(defun symbol-ensure-hookified (x)
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"Ensure that X has \"-hook\" appended to it when X is a symbol."
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2020-09-01 00:28:47 +02:00
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(symbol-as-string #'string-ensure-hookified x))
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2019-10-09 13:13:56 +02:00
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2020-09-01 00:28:47 +02:00
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(defun symbol-instance? (x)
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"Return t if X is a symbol."
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(symbolp x))
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(provide 'symbol)
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;;; symbol.el ends here
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