Create pages from _content.gotmpl

Closes #12427
Closes #12485
Closes #6310
Closes #5074

hugolib/doctree/treeshifttree.go

@@ -15,18 +15,21 @@ package doctree
 
 var _ Tree[string] = (*TreeShiftTree[string])(nil)
 
-type TreeShiftTree[T any] struct {
+type TreeShiftTree[T comparable] struct {
 	// This tree is shiftable in one dimension.
 	d int
 
 	// The value of the current dimension.
 	v int
 
+	// The zero value of T.
+	zero T
+
 	// Will be of length equal to the length of the dimension.
 	trees []*SimpleTree[T]
 }
 
-func NewTreeShiftTree[T any](d, length int) *TreeShiftTree[T] {
+func NewTreeShiftTree[T comparable](d, length int) *TreeShiftTree[T] {
 	if length <= 0 {
 		panic("length must be > 0")
 	}
@@ -52,6 +55,17 @@ func (t *TreeShiftTree[T]) Get(s string) T {
 	return t.trees[t.v].Get(s)
 }
 
+func (t *TreeShiftTree[T]) DeleteAllFunc(s string, f func(s string, v T) bool) {
+	for _, tt := range t.trees {
+		if v := tt.Get(s); v != t.zero {
+			if f(s, v) {
+				// Delete.
+				tt.tree.Delete(s)
+			}
+		}
+	}
+}
+
 func (t *TreeShiftTree[T]) LongestPrefix(s string) (string, T) {
 	return t.trees[t.v].LongestPrefix(s)
 }
@@ -60,10 +74,31 @@ func (t *TreeShiftTree[T]) Insert(s string, v T) T {
 	return t.trees[t.v].Insert(s, v)
 }
 
+func (t *TreeShiftTree[T]) Lock(lockType LockType) func() {
+	return t.trees[t.v].Lock(lockType)
+}
+
 func (t *TreeShiftTree[T]) WalkPrefix(lockType LockType, s string, f func(s string, v T) (bool, error)) error {
 	return t.trees[t.v].WalkPrefix(lockType, s, f)
 }
 
+func (t *TreeShiftTree[T]) WalkPrefixRaw(lockType LockType, s string, f func(s string, v T) (bool, error)) error {
+	for _, tt := range t.trees {
+		if err := tt.WalkPrefix(lockType, s, f); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (t *TreeShiftTree[T]) LenRaw() int {
+	var count int
+	for _, tt := range t.trees {
+		count += tt.tree.Len()
+	}
+	return count
+}
+
 func (t *TreeShiftTree[T]) Delete(key string) {
 	for _, tt := range t.trees {
 		tt.tree.Delete(key)
@@ -77,25 +112,3 @@ func (t *TreeShiftTree[T]) DeletePrefix(prefix string) int {
 	}
 	return count
 }
-
-func (t *TreeShiftTree[T]) Lock(writable bool) (commit func()) {
-	if writable {
-		for _, tt := range t.trees {
-			tt.mu.Lock()
-		}
-		return func() {
-			for _, tt := range t.trees {
-				tt.mu.Unlock()
-			}
-		}
-	}
-
-	for _, tt := range t.trees {
-		tt.mu.RLock()
-	}
-	return func() {
-		for _, tt := range t.trees {
-			tt.mu.RUnlock()
-		}
-	}
-}