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* lisp/emacs-lisp/helpers.el (string-empty-p): New function.

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(string-blank-p): New function
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Bozhidar Batsov 2013-11-29 18:51:44 +02:00
parent 7efb806d46
commit 015b3b3e8e
3 changed files with 15 additions and 0 deletions
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2
etc/NEWS
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@ -787,6 +787,8 @@ frame.
** New library helpers.el for misc helper functions
*** `hash-table-keys'
*** `hash-table-values'
*** `string-blank-p`
*** `string-empty-p`
*** `string-join`
*** `string-reverse`
*** `string-trim-left'

5
lisp/ChangeLog
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@ -1,3 +1,8 @@
2013-11-29 Bozhidar Batsov <bozhidar@batsov.com>
* emacs-lisp/helpers.el (string-empty-p): New function.
(string-blank-p): New function.
2013-11-29 Andreas Politz <politza@hochschule-trier.de>
* imenu.el (imenu--index-alist): Add missing dot to the docstring

8
lisp/emacs-lisp/helpers.el
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@ -37,6 +37,10 @@
(maphash (lambda (_k v) (push v values)) hash-table)
values))
(defsubst string-empty-p (string)
"Check whether STRING is empty."
(string= string ""))
(defsubst string-join (strings &optional separator)
"Join all STRINGS using SEPARATOR."
(mapconcat 'identity strings separator))
@ -61,6 +65,10 @@
"Remove leading and trailing whitespace from STRING."
(string-trim-left (string-trim-right string)))
(defsubst string-blank-p (string)
"Check whether STRING is either empty or only whitespace."
(string-empty-p (string-trim string)))
(provide 'helpers)
;;; helpers.el ends here