61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
// Copyright 2015 Frustra. All rights reserved.
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// Use of this source code is governed by the MIT
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// license that can be found in the LICENSE file.
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package bbcode
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type BBCodeNode struct {
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Token
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Parent *BBCodeNode
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Children []*BBCodeNode
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ClosingTag *BBClosingTag
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Compiler *Compiler
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Info interface{}
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}
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func (n *BBCodeNode) GetOpeningTag() *BBOpeningTag {
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if tag, ok := n.Value.(BBOpeningTag); ok {
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return &tag
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} else {
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return nil
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}
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}
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func (n *BBCodeNode) appendChild(t Token) *BBCodeNode {
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if t.ID == CLOSING_TAG {
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curr := n
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closing := t.Value.(BBClosingTag)
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for curr.Parent != nil {
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if curr.ID == OPENING_TAG && curr.Value.(BBOpeningTag).Name == closing.Name {
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curr.ClosingTag = &closing
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return curr.Parent
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}
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curr = curr.Parent
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}
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}
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// Join consecutive TEXT tokens
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if len(n.Children) == 0 && t.ID == TEXT && n.ID == TEXT {
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n.Value = n.Value.(string) + t.Value.(string)
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return n
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}
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node := &BBCodeNode{t, n, make([]*BBCodeNode, 0, 5), nil, nil, nil}
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n.Children = append(n.Children, node)
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if t.ID == OPENING_TAG {
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return node
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} else {
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return n
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}
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}
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func Parse(tokens chan Token) *BBCodeNode {
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root := &BBCodeNode{Token{TEXT, ""}, nil, make([]*BBCodeNode, 0, 5), nil, nil, nil}
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curr := root
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for tok := range tokens {
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curr = curr.appendChild(tok)
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}
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return root
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}
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