func DetectOrderedList(start, second Line, detectors Detectors) Handler {
m := reOrderedList.FindSubmatch(start.Bytes)
if m == nil {
return nil
}
var buf *defaultContext
block := &md.OrderedListBlock{
Starter: md.Run{start.Line, m[1]},
// firstNumber, _ := strconv.Atoi(string(m[2]))
}
var item *md.ItemBlock
var carry *Line
var parser *Parser
return HandlerFunc(func(next Line, ctx Context) (bool, error) {
if next.EOF() {
return listEnd2(parser, buf, ctx)
}
prev := carry
carry = &next
if prev == nil {
buf = &defaultContext{
mode: ctx.GetMode(),
detectors: changedParagraphDetector(ctx, false, true),
spanDetectors: ctx.GetSpanDetectors(),
}
block.Raw = append(block.Raw, md.Run(next))
buf.Emit(block)
if ctx.GetMode() != TopBlocks {
item = &md.ItemBlock{}
item.Raw = append(item.Raw, md.Run(next))
buf.Emit(item)
parser = &Parser{
Context: buf,
}
}
return pass(parser, next, next.Bytes[len(block.Starter.Bytes):])
}
nextBytes := bytes.TrimRight(next.Bytes, "\n")
if prev.isBlank() {
if next.isBlank() {
return listEnd2(parser, buf, ctx)
}
if !reOrderedList.Match(nextBytes) &&
next.hasNonSpaceInPrefix(len(block.Starter.Bytes)) {
return listEnd2(parser, buf, ctx)
}
} else {
if !reOrderedList.Match(nextBytes) &&
next.hasNonSpaceInPrefix(len(block.Starter.Bytes)) &&
!next.hasFourSpacePrefix() &&
(reUnorderedList.Match(nextBytes) ||
reHorizontalRule.Match(nextBytes)) {
return listEnd2(parser, buf, ctx)
}
}
block.Raw = append(block.Raw, md.Run(next))
m := reOrderedList.FindSubmatch(next.Bytes)
if m != nil {
text := bytes.TrimLeft(m[1], " ")
spaces, _ := mdutils.OffsetIn(m[1], text)
if spaces >= len(block.Starter.Bytes) {
m = nil
}
}
if m != nil {
if ctx.GetMode() != TopBlocks {
_, err := end(parser, buf)
if err != nil {
return false, err
}
item = &md.ItemBlock{}
item.Raw = append(item.Raw, md.Run(next))
buf.Emit(item)
parser = &Parser{
Context: buf,
}
}
return pass(parser, next, next.Bytes[len(m[1]):])
}
if ctx.GetMode() != TopBlocks {
item.Raw = append(item.Raw, md.Run(next))
}
return pass(parser, next, trimLeftN(next.Bytes, " ", len(block.Starter.Bytes)))
})
}
func DetectUnorderedList(start, second Line, detectors Detectors) Handler {
m := reUnorderedList.FindSubmatch(start.Bytes)
if m == nil {
return nil
}
var buf *defaultContext
block := &md.UnorderedListBlock{
Starter: md.Run{start.Line, m[1]},
}
var item *md.ItemBlock
var carry *Line
var parser *Parser
return HandlerFunc(func(next Line, ctx Context) (bool, error) {
if next.EOF() {
return listEnd2(parser, buf, ctx)
}
prev := carry
carry = &next
// First line? Init stuff and accept unconditionally, already tested.
if prev == nil {
buf = &defaultContext{
mode: ctx.GetMode(),
detectors: changedParagraphDetector(ctx, false, true),
spanDetectors: ctx.GetSpanDetectors(),
}
block.Raw = append(block.Raw, md.Run(next))
buf.Emit(block)
if ctx.GetMode() != TopBlocks {
item = &md.ItemBlock{}
item.Raw = append(item.Raw, md.Run(next))
buf.Emit(item)
parser = &Parser{
Context: buf,
}
}
return pass(parser, next, next.Bytes[len(block.Starter.Bytes):])
}
if prev.isBlank() {
if next.isBlank() {
return listEnd2(parser, buf, ctx)
}
if !bytes.HasPrefix(next.Bytes, block.Starter.Bytes) &&
// FIXME(akavel): spec refers to runes ("characters"), not bytes; fix this everywhere
next.hasNonSpaceInPrefix(len(block.Starter.Bytes)) {
return listEnd2(parser, buf, ctx)
}
} else {
nextBytes := bytes.TrimRight(next.Bytes, "\n")
if !bytes.HasPrefix(next.Bytes, block.Starter.Bytes) &&
next.hasNonSpaceInPrefix(len(block.Starter.Bytes)) &&
!next.hasFourSpacePrefix() &&
(reUnorderedList.Match(nextBytes) ||
reOrderedList.Match(nextBytes) ||
reHorizontalRule.Match(nextBytes)) {
return listEnd2(parser, buf, ctx)
}
}
block.Raw = append(block.Raw, md.Run(next))
if bytes.HasPrefix(next.Bytes, block.Starter.Bytes) {
if ctx.GetMode() != TopBlocks {
_, err := end(parser, buf)
if err != nil {
return false, err
}
item = &md.ItemBlock{}
item.Raw = append(item.Raw, md.Run(next))
buf.Emit(item)
parser = &Parser{
Context: buf,
}
}
return pass(parser, next, next.Bytes[len(block.Starter.Bytes):])
}
if ctx.GetMode() != TopBlocks {
item.Raw = append(item.Raw, md.Run(next))
}
return pass(parser, next, trimLeftN(next.Bytes, " ", len(block.Starter.Bytes)))
})
}