emacs-29 d90d7d15f2 9/9: ; Fix vindexes in parsing.texi

[Yuan Fu]

branch: emacs-29
commit d90d7d15f2f78c37b9a5c775e617ab6f5cd5fb01
Author: Yuan Fu <casouri@gmail.com>
Commit: Yuan Fu <casouri@gmail.com>

    ; Fix vindexes in parsing.texi
    
    * doc/lispref/parsing.texi (Tree-sitter major modes): Replace vindex
    with cross-reference to modes.texi.  Add manual entry for
    treesit-defun-type-regexp.
    * lisp/treesit.el (treesit-defun-type-regexp): Use pred in docstring
    since we use pred everywhere else.
---
 doc/lispref/parsing.texi | 22 +++++++++++++++-------
 lisp/treesit.el          |  2 +-
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/doc/lispref/parsing.texi b/doc/lispref/parsing.texi
index 4b9cd18dd4..5d1b11935c 100644
--- a/doc/lispref/parsing.texi
+++ b/doc/lispref/parsing.texi
@@ -1715,17 +1715,14 @@ This function activates some tree-sitter features for a 
major mode.
 
 Currently, it sets up the following features:
 @itemize
-@vindex treesit-font-lock-settings
 @item
-If @code{treesit-font-lock-settings} is non-@code{nil}, it sets up
-fontification.
+If @code{treesit-font-lock-settings} (@pxref{Parser-based Font Lock})
+is non-@code{nil}, it sets up fontification.
 
-@vindex treesit-simple-indent-rules
 @item
-If @code{treesit-simple-indent-rules} is non-@code{nil}, it sets up
-indentation.
+If @code{treesit-simple-indent-rules} (@pxref{Parser-based Font Lock})
+is non-@code{nil}, it sets up indentation.
 
-@vindex treesit-defun-type-regexp
 @item
 If @code{treesit-defun-type-regexp} is non-@code{nil}, it sets up
 navigation functions for @code{beginning-of-defun} and
@@ -1782,6 +1779,17 @@ node is a defun node but doesn't have a name, or the 
node is
 @code{nil}, it should return @code{nil}.
 @end defvar
 
+@defvar treesit-defun-type-regexp
+This variable determines which nodes are considered defuns by Emacs.
+It can be a regexp that matches the type of defun nodes.
+
+Sometimes not all nodes matched by the regexp are valid defuns.
+Therefore, this variable can also be a cons cell of the form
+@w{(@var{regexp} . @var{pred})}, where @var{pred} should be a function
+that takes a node as its argument, and returns @code{t} if the node is
+valid defun, or @code{nil} if it is not valid.
+@end defvar
+
 @node Tree-sitter C API
 @section Tree-sitter C API Correspondence
 
diff --git a/lisp/treesit.el b/lisp/treesit.el
index f3e1afd943..2130cd0061 100644
--- a/lisp/treesit.el
+++ b/lisp/treesit.el
@@ -1622,7 +1622,7 @@ For example, \"(function|class)_definition\".
 
 Sometimes not all nodes matched by the regexp are valid defuns.
 In that case, set this variable to a cons cell of the
-form (REGEXP . FILTER), where FILTER is a function that takes a
+form (REGEXP . PRED), where PRED is a function that takes a
 node (the matched node) and returns t if node is valid, or nil
 for invalid node.