27 lines
893 B
EmacsLisp
27 lines
893 B
EmacsLisp
(unless (featurep 'subr-x)
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;; `subr-x' function for Emacs 24.3 and below
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(defsubst string-join (strings &optional separator)
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"Join all STRINGS using SEPARATOR."
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(mapconcat 'identity strings separator))
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(defsubst string-trim-left (string)
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"Remove leading whitespace from STRING."
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(if (string-match "\\`[ \t\n\r]+" string)
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(replace-match "" t t string)
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string))
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(defsubst string-trim-right (string)
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"Remove trailing whitespace from STRING."
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(if (string-match "[ \t\n\r]+\\'" string)
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(replace-match "" t t string)
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string))
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(defsubst string-trim (string)
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"Remove leading and trailing whitespace from STRING."
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(string-trim-left (string-trim-right string)))
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(defsubst string-empty-p (string)
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"Check whether STRING is empty."
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(string= string "")))
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(provide 'emacs-backports)
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