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Merge branch 'master' into use-glamour select Glamour Theme based on BackgroundColor Merge branch 'master' into use-glamour Merge branch 'master' into use-glamour update termev update go.mod label color colorate use glamour for issue content Vendor: Add glamour Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: 6543 <6543@obermui.de> Reviewed-on: https://gitea.com/gitea/tea/pulls/181 Reviewed-by: techknowlogick <techknowlogick@gitea.io> Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
116 lines
3.0 KiB
Go
116 lines
3.0 KiB
Go
package extension
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import (
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"github.com/yuin/goldmark"
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gast "github.com/yuin/goldmark/ast"
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"github.com/yuin/goldmark/extension/ast"
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"github.com/yuin/goldmark/parser"
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"github.com/yuin/goldmark/renderer"
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"github.com/yuin/goldmark/renderer/html"
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"github.com/yuin/goldmark/text"
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"github.com/yuin/goldmark/util"
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"regexp"
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)
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var taskListRegexp = regexp.MustCompile(`^\[([\sxX])\]\s*`)
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type taskCheckBoxParser struct {
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}
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var defaultTaskCheckBoxParser = &taskCheckBoxParser{}
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// NewTaskCheckBoxParser returns a new InlineParser that can parse
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// checkboxes in list items.
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// This parser must take precedence over the parser.LinkParser.
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func NewTaskCheckBoxParser() parser.InlineParser {
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return defaultTaskCheckBoxParser
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}
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func (s *taskCheckBoxParser) Trigger() []byte {
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return []byte{'['}
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}
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func (s *taskCheckBoxParser) Parse(parent gast.Node, block text.Reader, pc parser.Context) gast.Node {
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// Given AST structure must be like
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// - List
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// - ListItem : parent.Parent
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// - TextBlock : parent
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// (current line)
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if parent.Parent() == nil || parent.Parent().FirstChild() != parent {
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return nil
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}
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if _, ok := parent.Parent().(*gast.ListItem); !ok {
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return nil
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}
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line, _ := block.PeekLine()
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m := taskListRegexp.FindSubmatchIndex(line)
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if m == nil {
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return nil
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}
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value := line[m[2]:m[3]][0]
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block.Advance(m[1])
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checked := value == 'x' || value == 'X'
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return ast.NewTaskCheckBox(checked)
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}
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func (s *taskCheckBoxParser) CloseBlock(parent gast.Node, pc parser.Context) {
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// nothing to do
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}
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// TaskCheckBoxHTMLRenderer is a renderer.NodeRenderer implementation that
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// renders checkboxes in list items.
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type TaskCheckBoxHTMLRenderer struct {
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html.Config
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}
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// NewTaskCheckBoxHTMLRenderer returns a new TaskCheckBoxHTMLRenderer.
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func NewTaskCheckBoxHTMLRenderer(opts ...html.Option) renderer.NodeRenderer {
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r := &TaskCheckBoxHTMLRenderer{
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Config: html.NewConfig(),
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}
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for _, opt := range opts {
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opt.SetHTMLOption(&r.Config)
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}
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return r
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}
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// RegisterFuncs implements renderer.NodeRenderer.RegisterFuncs.
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func (r *TaskCheckBoxHTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
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reg.Register(ast.KindTaskCheckBox, r.renderTaskCheckBox)
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}
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func (r *TaskCheckBoxHTMLRenderer) renderTaskCheckBox(w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
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if !entering {
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return gast.WalkContinue, nil
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}
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n := node.(*ast.TaskCheckBox)
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if n.IsChecked {
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w.WriteString(`<input checked="" disabled="" type="checkbox"`)
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} else {
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w.WriteString(`<input disabled="" type="checkbox"`)
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}
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if r.XHTML {
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w.WriteString(" /> ")
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} else {
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w.WriteString("> ")
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}
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return gast.WalkContinue, nil
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}
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type taskList struct {
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}
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// TaskList is an extension that allow you to use GFM task lists.
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var TaskList = &taskList{}
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func (e *taskList) Extend(m goldmark.Markdown) {
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m.Parser().AddOptions(parser.WithInlineParsers(
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util.Prioritized(NewTaskCheckBoxParser(), 0),
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))
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m.Renderer().AddOptions(renderer.WithNodeRenderers(
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util.Prioritized(NewTaskCheckBoxHTMLRenderer(), 500),
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))
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}
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