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author | Thien-Thi Nguyen <ttn@gnuvola.org> | 2007-08-27 02:22:57 +0000 |
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committer | Thien-Thi Nguyen <ttn@gnuvola.org> | 2007-08-27 02:22:57 +0000 |
commit | 5afb301bee960583ddd66044367ac08155ff9be8 (patch) | |
tree | 6f7b1cc913d8b406905f13923ba18d5020185fcc /lisp | |
parent | dfd4af17e447929c26534bc232333eec7b74a6b4 (diff) | |
download | emacs-5afb301bee960583ddd66044367ac08155ff9be8.tar.gz |
Do s/elib-avl-/avl-tree-/g. Resulting changed macro and function names:
avl-tree-root, avl-tree-dummyroot, avl-tree-cmpfun, avl-tree-del-balance1,
avl-tree-do-del-internal, avl-tree-del-balance2, avl-tree-do-delete,
avl-tree-enter-balance1, avl-tree-enter-balance2, avl-tree-do-enter,
avl-tree-mapc, avl-tree-do-copy.
Diffstat (limited to 'lisp')
-rw-r--r-- | lisp/emacs-lisp/avl-tree.el | 96 |
1 files changed, 46 insertions, 50 deletions
diff --git a/lisp/emacs-lisp/avl-tree.el b/lisp/emacs-lisp/avl-tree.el index a86fdc60f57..63e88ac21f9 100644 --- a/lisp/emacs-lisp/avl-tree.el +++ b/lisp/emacs-lisp/avl-tree.el @@ -112,26 +112,22 @@ ;;; ================================================================ ;;; Internal functions for use in the AVL tree package -;;; -;;; The functions and macros in this section all start with `elib-avl-'. -;;; - -(defmacro elib-avl-root (tree) +(defmacro avl-tree-root (tree) ;; Return the root node for an avl-tree. INTERNAL USE ONLY. `(elib-node-left (car (cdr ,tree)))) -(defmacro elib-avl-dummyroot (tree) +(defmacro avl-tree-dummyroot (tree) ;; Return the dummy node of an avl-tree. INTERNAL USE ONLY. `(car (cdr ,tree))) -(defmacro elib-avl-cmpfun (tree) +(defmacro avl-tree-cmpfun (tree) ;; Return the compare function of AVL tree TREE. INTERNAL USE ONLY. `(cdr (cdr ,tree))) ;; ---------------------------------------------------------------- ;; Deleting data -(defun elib-avl-del-balance1 (node branch) +(defun avl-tree-del-balance1 (node branch) ;; Rebalance a tree and return t if the height of the tree has shrunk. (let* ((br (elib-node-branch node branch)) p1 @@ -185,7 +181,7 @@ (avl-tree-node-set-balance p2 0) t))))) -(defun elib-avl-del-balance2 (node branch) +(defun avl-tree-del-balance2 (node branch) (let* ((br (elib-node-branch node branch)) p1 b1 @@ -238,18 +234,18 @@ (avl-tree-node-set-balance p2 0) t))))) -(defun elib-avl-do-del-internal (node branch q) +(defun avl-tree-do-del-internal (node branch q) (let* ((br (elib-node-branch node branch))) (if (elib-node-right br) - (if (elib-avl-do-del-internal br +1 q) - (elib-avl-del-balance2 node branch)) + (if (avl-tree-do-del-internal br +1 q) + (avl-tree-del-balance2 node branch)) (elib-node-set-data q (elib-node-data br)) (elib-node-set-branch node branch (elib-node-left br)) t))) -(defun elib-avl-do-delete (cmpfun root branch data) +(defun avl-tree-do-delete (cmpfun root branch data) ;; Return t if the height of the tree has shrunk. (let* ((br (elib-node-branch root branch))) (cond @@ -257,12 +253,12 @@ nil) ((funcall cmpfun data (elib-node-data br)) - (if (elib-avl-do-delete cmpfun br 0 data) - (elib-avl-del-balance1 root branch))) + (if (avl-tree-do-delete cmpfun br 0 data) + (avl-tree-del-balance1 root branch))) ((funcall cmpfun (elib-node-data br) data) - (if (elib-avl-do-delete cmpfun br 1 data) - (elib-avl-del-balance2 root branch))) + (if (avl-tree-do-delete cmpfun br 1 data) + (avl-tree-del-balance2 root branch))) (t ;; Found it. Let's delete it. @@ -276,13 +272,13 @@ t) (t - (if (elib-avl-do-del-internal br 0 br) - (elib-avl-del-balance1 root branch)))))))) + (if (avl-tree-do-del-internal br 0 br) + (avl-tree-del-balance1 root branch)))))))) ;; ---------------------------------------------------------------- ;; Entering data -(defun elib-avl-enter-balance1 (node branch) +(defun avl-tree-enter-balance1 (node branch) ;; Rebalance a tree and return t if the height of the tree has grown. (let* ((br (elib-node-branch node branch)) p1 @@ -326,7 +322,7 @@ (avl-tree-node-set-balance (elib-node-branch node branch) 0) nil)))) -(defun elib-avl-enter-balance2 (node branch) +(defun avl-tree-enter-balance2 (node branch) ;; Return t if the tree has grown. (let* ((br (elib-node-branch node branch)) p1 @@ -369,7 +365,7 @@ (avl-tree-node-set-balance (elib-node-branch node branch) 0) nil)))) -(defun elib-avl-do-enter (cmpfun root branch data) +(defun avl-tree-do-enter (cmpfun root branch data) ;; Return t if height of tree ROOT has grown. INTERNAL USE ONLY. (let ((br (elib-node-branch root branch))) (cond @@ -380,16 +376,16 @@ t) ((funcall cmpfun data (elib-node-data br)) - (and (elib-avl-do-enter cmpfun + (and (avl-tree-do-enter cmpfun br 0 data) - (elib-avl-enter-balance2 root branch))) + (avl-tree-enter-balance2 root branch))) ((funcall cmpfun (elib-node-data br) data) - (and (elib-avl-do-enter cmpfun + (and (avl-tree-do-enter cmpfun br 1 data) - (elib-avl-enter-balance1 root branch))) + (avl-tree-enter-balance1 root branch))) (t (elib-node-set-data br data) @@ -397,7 +393,7 @@ ;; ---------------------------------------------------------------- -(defun elib-avl-mapc (map-function root) +(defun avl-tree-mapc (map-function root) ;; Apply MAP-FUNCTION to all nodes in the tree starting with ROOT. ;; The function is applied in-order. ;; @@ -423,13 +419,13 @@ (setq node (pop stack) go-left nil)))))) -(defun elib-avl-do-copy (root) +(defun avl-tree-do-copy (root) ;; Copy the tree with ROOT as root. ;; Highly recursive. INTERNAL USE ONLY. (if (null root) nil - (avl-tree-node-create (elib-avl-do-copy (elib-node-left root)) - (elib-avl-do-copy (elib-node-right root)) + (avl-tree-node-create (avl-tree-do-copy (elib-node-left root)) + (avl-tree-do-copy (elib-node-right root)) (elib-node-data root) (avl-tree-node-balance root)))) @@ -451,17 +447,17 @@ and returns non-nil if A is less than B, and nil otherwise." (defun avl-tree-compare-function (tree) "Return the comparision function for the avl tree TREE." - (elib-avl-cmpfun tree)) + (avl-tree-cmpfun tree)) (defun avl-tree-empty (tree) "Return t if TREE is emtpy, otherwise return nil." - (null (elib-avl-root tree))) + (null (avl-tree-root tree))) (defun avl-tree-enter (tree data) "In the avl tree TREE insert DATA. Return DATA." - (elib-avl-do-enter (elib-avl-cmpfun tree) - (elib-avl-dummyroot tree) + (avl-tree-do-enter (avl-tree-cmpfun tree) + (avl-tree-dummyroot tree) 0 data) data) @@ -469,8 +465,8 @@ Return DATA." (defun avl-tree-delete (tree data) "From the avl tree TREE, delete DATA. Return the element in TREE which matched DATA, nil if no element matched." - (elib-avl-do-delete (elib-avl-cmpfun tree) - (elib-avl-dummyroot tree) + (avl-tree-do-delete (avl-tree-cmpfun tree) + (avl-tree-dummyroot tree) 0 data)) @@ -480,8 +476,8 @@ Matching uses the compare function previously specified in `avl-tree-create' when TREE was created. If there is no such element in the tree, the value is nil." - (let ((node (elib-avl-root tree)) - (compare-function (elib-avl-cmpfun tree)) + (let ((node (avl-tree-root tree)) + (compare-function (avl-tree-cmpfun tree)) found) (while (and node (not found)) @@ -499,16 +495,16 @@ If there is no such element in the tree, the value is nil." (defun avl-tree-map (__map-function__ tree) "Apply MAP-FUNCTION to all elements in the avl tree TREE." - (elib-avl-mapc + (avl-tree-mapc (function (lambda (node) (elib-node-set-data node (funcall __map-function__ (elib-node-data node))))) - (elib-avl-root tree))) + (avl-tree-root tree))) (defun avl-tree-first (tree) "Return the first element in TREE, or nil if TREE is empty." - (let ((node (elib-avl-root tree))) + (let ((node (avl-tree-root tree))) (if node (progn (while (elib-node-left node) @@ -518,7 +514,7 @@ If there is no such element in the tree, the value is nil." (defun avl-tree-last (tree) "Return the last element in TREE, or nil if TREE is empty." - (let ((node (elib-avl-root tree))) + (let ((node (avl-tree-root tree))) (if node (progn (while (elib-node-right node) @@ -529,33 +525,33 @@ If there is no such element in the tree, the value is nil." (defun avl-tree-copy (tree) "Return a copy of the avl tree TREE." (let ((new-tree (avl-tree-create - (elib-avl-cmpfun tree)))) - (elib-node-set-left (elib-avl-dummyroot new-tree) - (elib-avl-do-copy (elib-avl-root tree))) + (avl-tree-cmpfun tree)))) + (elib-node-set-left (avl-tree-dummyroot new-tree) + (avl-tree-do-copy (avl-tree-root tree))) new-tree)) (defun avl-tree-flatten (tree) "Return a sorted list containing all elements of TREE." (nreverse (let ((treelist nil)) - (elib-avl-mapc (function (lambda (node) + (avl-tree-mapc (function (lambda (node) (setq treelist (cons (elib-node-data node) treelist)))) - (elib-avl-root tree)) + (avl-tree-root tree)) treelist))) (defun avl-tree-size (tree) "Return the number of elements in TREE." (let ((treesize 0)) - (elib-avl-mapc (function (lambda (data) + (avl-tree-mapc (function (lambda (data) (setq treesize (1+ treesize)) data)) - (elib-avl-root tree)) + (avl-tree-root tree)) treesize)) (defun avl-tree-clear (tree) "Clear the avl tree TREE." - (elib-node-set-left (elib-avl-dummyroot tree) nil)) + (elib-node-set-left (avl-tree-dummyroot tree) nil)) (provide 'avl-tree) |