diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/lispref/parsing.texi | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/doc/lispref/parsing.texi b/doc/lispref/parsing.texi index 26204164243..fbd739b76d5 100644 --- a/doc/lispref/parsing.texi +++ b/doc/lispref/parsing.texi @@ -785,7 +785,7 @@ that comes after it in the buffer position order, i.e., nodes with start positions greater than the end position of @var{start}. In the tree shown above, @code{treesit-search-subtree} traverses node -@samp{S} (@var{start}) and nodes marked with @code{o}, where this +@samp{S} (@var{start}) and nodes marked with @code{o}, whereas this function traverses the nodes marked with numbers. This function is useful for answering questions like ``what is the first node after @var{start} in the buffer that satisfies some condition?'' @@ -860,32 +860,35 @@ nodes. @defun treesit-parent-until node predicate &optional include-node This function repeatedly finds the parents of @var{node}, and returns -the parent that satisfies @var{pred}, a function that takes a node as +the parent that satisfies @var{predicate}, a function that takes a node as argument and returns a boolean that indicates a match. If no parent -satisfies @var{pred}, this function returns @code{nil}. +satisfies @var{predicate}, this function returns @code{nil}. Normally this function only looks at the parents of @var{node} but not @var{node} itself. But if @var{include-node} is non-@code{nil}, this -function returns @var{node} if @var{node} satisfies @var{pred}. +function returns @var{node} if @var{node} satisfies @var{predicate}. @end defun -@defun treesit-parent-while node pred +@defun treesit-parent-while node predicate This function goes up the tree starting from @var{node}, and keeps -doing so as long as the nodes satisfy @var{pred}, a function that +doing so as long as the nodes satisfy @var{predicate}, a function that takes a node as argument. That is, this function returns the highest -parent of @var{node} that still satisfies @var{pred}. Note that if -@var{node} satisfies @var{pred} but its immediate parent doesn't, +parent of @var{node} that still satisfies @var{predicate}. Note that if +@var{node} satisfies @var{predicate} but its immediate parent doesn't, @var{node} itself is returned. @end defun -@defun treesit-node-top-level node &optional type +@defun treesit-node-top-level node &optional predicate include-node This function returns the highest parent of @var{node} that has the same type as @var{node}. If no such parent exists, it returns @code{nil}. Therefore this function is also useful for testing whether @var{node} is top-level. -If @var{type} is non-@code{nil}, this function matches each parent's -type with @var{type} as a regexp, rather than using @var{node}'s type. +If @var{predicate} is @code{nil}, this function uses @var{node}'s type +to find the parent. If @var{predicate} is non-@code{nil}, this +function searches the parent that satisfies @var{predicate}. If +@var{include-node} is non-@code{nil}, this function returns @var{node} +if @var{node} satisfies @var{predicate}. @end defun @node Accessing Node Information |