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(lisp-indent-function): Add doc string.

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Richard M. Stallman 2001-11-25 19:35:29 +00:00
parent ab7207af6f
commit 9fefa08b84
2 changed files with 22 additions and 0 deletions
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20
lisp/emacs-lisp/lisp-mode.el
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@ -791,6 +791,26 @@ is the buffer position of the start of the containing expression."
normal-indent))))))
(defun lisp-indent-function (indent-point state)
"This function is the normal value of the variable `lisp-indent-function'.
It is used when indenting a line within a function call, to see if the
called function says anything special about how to indent the line.
INDENT-POINT is the position where the user typed TAB, or equivalent.
Point is located at the point to indent under (for default indentation);
STATE is the `parse-partial-sexp' state for that position.
If the current line is in a call to a Lisp function
which has a non-nil property `lisp-indent-function',
that specifies how to do the indentation. The property value can be
* `defun', meaning indent `defun'-style;
* an integer N, meaning indent the first N arguments specially
like ordinary function arguments and then indent any further
aruments like a body;
* a function to call just as this function was called.
If that function returns nil, that means it doesn't specify
the indentation.
This function also returns nil meaning don't specify the indentation."
(let ((normal-indent (current-column)))
(goto-char (1+ (elt state 1)))
(parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)