92 lines
1.7 KiB
V
92 lines
1.7 KiB
V
module html
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const (
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null_element = int(0x80000000)
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)
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struct Stack {
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mut:
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elements []int
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size int
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}
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[inline]
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fn is_null(data int) bool {
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return data == html.null_element
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}
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[inline]
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fn (stack Stack) is_empty() bool {
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return stack.size <= 0
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}
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fn (stack Stack) peek() int {
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return if !stack.is_empty() { stack.elements[stack.size - 1] } else { html.null_element }
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}
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fn (mut stack Stack) pop() int {
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mut to_return := html.null_element
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if !stack.is_empty() {
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to_return = stack.elements[stack.size - 1]
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stack.size--
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}
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return to_return
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}
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fn (mut stack Stack) push(item int) {
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if stack.elements.len > stack.size {
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stack.elements[stack.size] = item
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} else {
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stack.elements << item
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}
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stack.size++
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}
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struct BTree {
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mut:
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all_tags []Tag
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node_pointer int
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childrens [][]int
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parents []int
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}
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fn (mut btree BTree) add_children(tag Tag) int {
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btree.all_tags << tag
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if btree.all_tags.len > 1 {
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for btree.childrens.len <= btree.node_pointer {
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mut temp_array := btree.childrens
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temp_array << []int{}
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btree.childrens = temp_array
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}
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btree.childrens[btree.node_pointer] << btree.all_tags.len - 1
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for btree.parents.len < btree.all_tags.len {
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mut temp_array := btree.parents
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temp_array << 0
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btree.parents = temp_array
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}
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btree.parents[btree.all_tags.len - 1] = btree.node_pointer
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}
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return btree.all_tags.len - 1
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}
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[inline]
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fn (btree BTree) get_children() []int {
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return btree.childrens[btree.node_pointer]
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}
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[inline]
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fn (btree BTree) get_parent() int {
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return btree.parents[btree.node_pointer]
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}
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[inline]
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fn (btree BTree) get_stored() Tag {
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return btree.all_tags[btree.node_pointer]
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}
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fn (mut btree BTree) move_pointer(to int) {
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if to < btree.all_tags.len {
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btree.node_pointer = to
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}
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}
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