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