1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
package builder
import (
"strings"
)
// Frontmatter holds parsed page metadata from YAML-style front matter.
type Frontmatter struct {
Title string
Date string
Tags []string
Layout string // template name without extension, default "base"
Draft bool
}
// ParseFrontmatter splits the optional ---...--- block from the markdown body.
// Supports: title, date, tags (comma-list or [a, b]), layout, draft.
func ParseFrontmatter(content string) (Frontmatter, string) {
fm := Frontmatter{Layout: "base"}
if !strings.HasPrefix(content, "---") {
return fm, content
}
// Find closing ---
rest := content[3:]
end := strings.Index(rest, "\n---")
if end == -1 {
return fm, content
}
block := strings.TrimSpace(rest[:end])
body := strings.TrimSpace(rest[end+4:]) // skip \n---
for _, line := range strings.Split(block, "\n") {
k, v, ok := strings.Cut(strings.TrimSpace(line), ":")
if !ok {
continue
}
k = strings.TrimSpace(k)
v = strings.TrimSpace(v)
switch k {
case "title":
fm.Title = strings.Trim(v, `"'`)
case "date":
fm.Date = v
case "layout":
fm.Layout = strings.Trim(v, `"'`)
case "draft":
fm.Draft = v == "true"
case "tags":
fm.Tags = parseTags(v)
}
}
return fm, body
}
func parseTags(v string) []string {
v = strings.Trim(v, "[] ")
var tags []string
for _, p := range strings.Split(v, ",") {
if t := strings.Trim(strings.TrimSpace(p), `"'`); t != "" {
tags = append(tags, t)
}
}
return tags
}
|
