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`eldoc': don't error if a command has no SYNOPSIS #7

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`eldoc': don't error if a command has no SYNOPSIS #7

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15 changes: 8 additions & 7 deletions esh-help.el
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Original file line number Diff line number Diff line change
Expand Up @@ -121,7 +121,8 @@ It comes from Zsh."
str)))

(defun esh-help-eldoc-man-minibuffer-string (cmd)
"Return minibuffer help string for the shell command CMD."
"Return minibuffer help string for the shell command CMD.
Return nil if there is none."
(let ((cache-result (gethash cmd esh-help-man-cache)))
(if cache-result
(unless (eql 'none cache-result)
Expand All @@ -133,12 +134,12 @@ It comes from Zsh."
(puthash cmd 'none esh-help-man-cache)
nil)
(puthash cmd
(->> str
(--drop-while (not (string-match-p "^SYNOPSIS$" it)))
(nth 1)
(funcall (lambda (s)
(let ((idx (string-match "[^\s\t]" s)))
(substring s idx)))))
(-some->> str
(--drop-while (not (string-match-p "^SYNOPSIS$" it)))
(nth 1)
(funcall (lambda (s)
(let ((idx (string-match "[^\s\t]" s)))
(substring s idx)))))
esh-help-man-cache))))))

(defun esh-help-eldoc-command ()
Expand Down