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// Copyright 2015 The Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package markdown
import "strings"
func ruleLHeading(s *StateBlock, startLine, endLine int, silent bool) bool {
nextLine := startLine + 1
if s.SCount[startLine]-s.BlkIndent >= 4 {
return false
}
oldParentType := s.ParentType
s.ParentType = ptParagraph
src := s.Src
var pos int
var hLevel int
outer:
for ; nextLine < endLine && !s.IsLineEmpty(nextLine); nextLine++ {
if s.SCount[nextLine]-s.BlkIndent > 3 {
continue
}
if s.SCount[nextLine] >= s.BlkIndent {
pos = s.BMarks[nextLine] + s.TShift[nextLine]
max := s.EMarks[nextLine]
if pos < max {
marker := src[pos]
if marker == '-' || marker == '=' {
pos = s.SkipBytes(pos, marker)
pos = s.SkipSpaces(pos)
if pos >= max {
hLevel = 1
if marker == '-' {
hLevel++
}
break
}
}
}
}
if s.SCount[nextLine] < 0 {
continue
}
for _, r := range paragraphTerminatedBy {
if r(s, nextLine, endLine, true) {
break outer
}
}
}
if hLevel == 0 {
return false
}
s.Line = nextLine + 1
s.PushOpeningToken(&HeadingOpen{
HLevel: hLevel,
Map: [2]int{startLine, s.Line},
})
s.PushToken(&Inline{
Content: strings.TrimSpace(s.Lines(startLine, nextLine, s.BlkIndent, false)),
Map: [2]int{startLine, s.Line - 1},
})
s.PushClosingToken(&HeadingClose{HLevel: hLevel})
s.ParentType = oldParentType
return true
}
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