cheat/internal/frontmatter/frontmatter.go
Chris Lane 51aaaf3423 chore: removes the tj/front dependency
Removes the `tj/front` dependency due to licensing concerns. See #490.
2019-11-07 06:46:34 -05:00

35 lines
758 B
Go

package frontmatter
import (
"strings"
"gopkg.in/yaml.v1"
)
// Frontmatter encapsulates cheatsheet frontmatter data
type Frontmatter struct {
Tags []string
Syntax string
}
// Parse parses cheatsheet frontmatter
func Parse(markdown string) (string, Frontmatter, error) {
// specify the frontmatter delimiter
delim := "---"
// initialize a frontmatter struct
var fm Frontmatter
// if the markdown does not contain frontmatter, pass it through unmodified
if !strings.HasPrefix(markdown, delim) {
return strings.TrimSpace(markdown), fm, nil
}
// otherwise, split the frontmatter and cheatsheet text
parts := strings.SplitN(markdown, delim, 3)
err := yaml.Unmarshal([]byte(parts[1]), &fm)
return strings.TrimSpace(parts[2]), fm, err
}