Stu Leak
68df790d27
Major improvements to UnifiedPlayer: 1. GetFrameImage() now works when paused for responsive UI updates 2. Play() method properly starts FFmpeg process 3. Frame display loop runs continuously for smooth video display 4. Disabled audio temporarily to fix video playback fundamentals 5. Simplified FFmpeg command to focus on video stream only Player now: - Generates video frames correctly - Shows video when paused - Has responsive progress tracking - Starts playback properly Next steps: Re-enable audio playback once video is stable
123 lines
3.2 KiB
Go
123 lines
3.2 KiB
Go
package parser
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import (
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"bytes"
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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 fencedCodeBlockParser struct {
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}
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var defaultFencedCodeBlockParser = &fencedCodeBlockParser{}
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// NewFencedCodeBlockParser returns a new BlockParser that
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// parses fenced code blocks.
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func NewFencedCodeBlockParser() BlockParser {
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return defaultFencedCodeBlockParser
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}
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type fenceData struct {
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char byte
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indent int
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length int
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node ast.Node
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}
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var fencedCodeBlockInfoKey = NewContextKey()
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func (b *fencedCodeBlockParser) Trigger() []byte {
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return []byte{'~', '`'}
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}
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func (b *fencedCodeBlockParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
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line, segment := reader.PeekLine()
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pos := pc.BlockOffset()
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if pos < 0 || (line[pos] != '`' && line[pos] != '~') {
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return nil, NoChildren
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}
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findent := pos
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fenceChar := line[pos]
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i := pos
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for ; i < len(line) && line[i] == fenceChar; i++ {
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}
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oFenceLength := i - pos
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if oFenceLength < 3 {
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return nil, NoChildren
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}
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var info *ast.Text
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if i < len(line)-1 {
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rest := line[i:]
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left := util.TrimLeftSpaceLength(rest)
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right := util.TrimRightSpaceLength(rest)
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if left < len(rest)-right {
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infoStart, infoStop := segment.Start-segment.Padding+i+left, segment.Stop-right
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value := rest[left : len(rest)-right]
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if fenceChar == '`' && bytes.IndexByte(value, '`') > -1 {
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return nil, NoChildren
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} else if infoStart != infoStop {
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info = ast.NewTextSegment(text.NewSegment(infoStart, infoStop))
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}
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}
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}
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node := ast.NewFencedCodeBlock(info)
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pc.Set(fencedCodeBlockInfoKey, &fenceData{fenceChar, findent, oFenceLength, node})
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return node, NoChildren
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}
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func (b *fencedCodeBlockParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
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line, segment := reader.PeekLine()
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fdata := pc.Get(fencedCodeBlockInfoKey).(*fenceData)
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w, pos := util.IndentWidth(line, reader.LineOffset())
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if w < 4 {
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i := pos
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for ; i < len(line) && line[i] == fdata.char; i++ {
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}
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length := i - pos
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if length >= fdata.length && util.IsBlank(line[i:]) {
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newline := 1
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if line[len(line)-1] != '\n' {
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newline = 0
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}
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reader.Advance(segment.Stop - segment.Start - newline + segment.Padding)
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return Close
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}
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}
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pos, padding := util.IndentPositionPadding(line, reader.LineOffset(), segment.Padding, fdata.indent)
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if pos < 0 {
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pos = util.FirstNonSpacePosition(line)
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if pos < 0 {
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pos = 0
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}
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padding = 0
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}
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seg := text.NewSegmentPadding(segment.Start+pos, segment.Stop, padding)
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// if code block line starts with a tab, keep a tab as it is.
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if padding != 0 {
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preserveLeadingTabInCodeBlock(&seg, reader, fdata.indent)
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}
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seg.ForceNewline = true // EOF as newline
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node.Lines().Append(seg)
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reader.AdvanceAndSetPadding(segment.Stop-segment.Start-pos-1, padding)
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return Continue | NoChildren
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}
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func (b *fencedCodeBlockParser) Close(node ast.Node, reader text.Reader, pc Context) {
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fdata := pc.Get(fencedCodeBlockInfoKey).(*fenceData)
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if fdata.node == node {
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pc.Set(fencedCodeBlockInfoKey, nil)
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}
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}
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func (b *fencedCodeBlockParser) CanInterruptParagraph() bool {
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return true
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}
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func (b *fencedCodeBlockParser) CanAcceptIndentedLine() bool {
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return false
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}
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