70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
package parser
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import (
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"github.com/yuin/goldmark/ast"
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"github.com/yuin/goldmark/text"
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"github.com/yuin/goldmark/util"
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)
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type blockquoteParser struct {
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}
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var defaultBlockquoteParser = &blockquoteParser{}
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// NewBlockquoteParser returns a new BlockParser that
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// parses blockquotes.
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func NewBlockquoteParser() BlockParser {
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return defaultBlockquoteParser
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}
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func (b *blockquoteParser) process(reader text.Reader) bool {
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line, _ := reader.PeekLine()
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w, pos := util.IndentWidth(line, reader.LineOffset())
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if w > 3 || pos >= len(line) || line[pos] != '>' {
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return false
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}
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pos++
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if pos >= len(line) || line[pos] == '\n' {
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reader.Advance(pos)
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return true
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}
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if line[pos] == ' ' || line[pos] == '\t' {
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pos++
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}
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reader.Advance(pos)
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if line[pos-1] == '\t' {
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reader.SetPadding(2)
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}
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return true
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}
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func (b *blockquoteParser) Trigger() []byte {
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return []byte{'>'}
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}
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func (b *blockquoteParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
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if b.process(reader) {
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return ast.NewBlockquote(), HasChildren
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}
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return nil, NoChildren
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}
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func (b *blockquoteParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
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if b.process(reader) {
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return Continue | HasChildren
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}
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return Close
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}
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func (b *blockquoteParser) Close(node ast.Node, reader text.Reader, pc Context) {
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// nothing to do
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}
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func (b *blockquoteParser) CanInterruptParagraph() bool {
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return true
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}
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func (b *blockquoteParser) CanAcceptIndentedLine() bool {
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return false
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}
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