72 lines
1.3 KiB
Go
72 lines
1.3 KiB
Go
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package components
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import (
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"github.com/dlclark/regexp2"
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)
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type Block struct {
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Closer string
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NameSpace string
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Name string
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Attrs string
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Void string
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Len int
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StartOffset int
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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(s string) []Block {
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m, err := block.FindStringMatch(s)
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if err != nil {
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panic(err)
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}
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var blocks []Block
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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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b.StartOffset = m.Group.Index
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b.Len = m.Length
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blocks = append(blocks, b)
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m, _ = block.FindNextMatch(m)
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}
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return blocks
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}
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func token(g []regexp2.Group) (Block, string) {
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if len(g) < 1 {
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return Block{}, "no-more-tokens"
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}
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b := Block{NameSpace: "core/"}
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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 1:
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b.Closer = v
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case 2:
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b.NameSpace = v
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case 3:
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b.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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b.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 b.Void != "" {
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return b, ""
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}
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if b.Closer != "" {
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return b, "block-closer"
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}
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return b, "block-opener"
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}
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