97 lines
1.7 KiB
Go
97 lines
1.7 KiB
Go
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package block
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import (
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"github.com/dlclark/regexp2"
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str "github.com/fthvgb1/wp-go/helper/strings"
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)
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type Block struct {
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Name string
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Attrs string
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Len int
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StartOffset int
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Type string
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}
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type BockParser struct {
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Document string
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Offset int
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Output []ParserBlock
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}
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type ParserBlock struct {
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Name string
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Attrs string
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InnerBlocks string
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InnerHtml string
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InnerContent string
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}
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var block = regexp2.MustCompile(`<!--\s+(?<closer>/)?wp:(?<namespace>[a-z][a-z0-9_-]*\/)?(?<name>[a-z][a-z0-9_-]*)\s+(?<attrs>{(?:(?:[^}]+|}+(?=})|(?!}\s+\/?-->).)*)?}\s+)?(?<void>\/)?-->`, regexp2.IgnoreCase|regexp2.Singleline)
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func ParseBlock(content string) (r BockParser) {
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m, err := block.FindStringMatch(content)
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if err != nil {
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panic(err)
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}
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r.Document = content
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for m != nil {
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if m.GroupCount() < 1 {
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continue
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}
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b := token(m.Groups())
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bb := ParserBlock{}
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bb.Name = b.Name
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bb.Attrs = b.Attrs
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r.Output = append(r.Output, bb)
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m, _ = block.FindNextMatch(m)
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}
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return
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}
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func token(g []regexp2.Group) (b Block) {
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if len(g) < 1 {
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b.Type = "no-more-tokens"
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return
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}
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var closer, name, void, nameSpace = "", "", "", ""
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for i, group := range g {
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v := group.String()
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if v == "" {
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continue
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}
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switch i {
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case 0:
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b.Len = group.Length
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b.StartOffset = group.Index
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case 1:
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closer = v
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case 2:
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nameSpace = v
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case 3:
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name = v
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case 4:
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b.Attrs = v
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case 5:
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void = v
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default:
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continue
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}
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}
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if nameSpace == "" {
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nameSpace = "core/"
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}
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b.Name = str.Join(nameSpace, name)
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if void != "" {
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b.Type = "void-block"
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return
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}
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if closer != "" {
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b.Type = "block-closer"
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return
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}
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b.Type = "block-opener"
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return b
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}
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