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// Tideland Go Library - Simple Markup Language
//
// Copyright (C) 2009-2017 Frank Mueller / Tideland / Oldenburg / Germany
//
// All rights reserved. Use of this source code is governed
// by the new BSD license.
package sml
//--------------------
// IMPORTS
//--------------------
//--------------------
// PROCESSOR
//--------------------
// Processor represents any type able to process
// a node structure. Four callbacks then will be
// called with the according data.
type Processor interface {
// OpenTag is called if a tag is opened.
OpenTag(tag []string) error
// CloseTag is called if a tag is closed.
CloseTag(tag []string) error
// Text is called for each text data inside a node.
Text(text string) error
// Raw is called for each raw data inside a node.
Raw(raw string) error
// Comment is called for each comment data inside a node.
Comment(comment string) error
}
//--------------------
// BUILDER
//--------------------
// Builder defines the callbacks for the reader
// to handle parts of the document.
type Builder interface {
// BeginTagNode is called when new tag node begins.
BeginTagNode(tag string) error
// EndTagNode is called when the tag node ends.
EndTagNode() error
// TextNode is called for each text data.
TextNode(text string) error
// RawNode is called for each raw data.
RawNode(raw string) error
// Comment is called for each comment data inside a node.
CommentNode(comment string) error
}
//--------------------
// NODES
//--------------------
// Node represents the common interface of all nodes (tags and text).
type Node interface {
// Tag returns the tag in case of a tag node, otherwise nil.
Tag() []string
// Len returns the length of a text or the number of subnodes,
// depending on the concrete type of the node.
Len() int
// ProcessWith is called for the processing of this node.
ProcessWith(p Processor) error
// String returns a simple string representation of the node.
String() string
}
// EOF
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