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package post
import "errors"
// ErrFormatStringMalformed indicates that a string could not be converted to a
// Format.
var ErrFormatStringMalformed = errors.New("format string malformed")
// Format describes the format of the body of a Post.
type Format string
// Enumeration of possible formats.
const (
FormatMarkdown Format = "md"
FormatGemtext Format = "gmi"
)
// Formats slice of all possible Formats.
var Formats = []Format{
FormatMarkdown,
FormatGemtext,
}
var strsToFormats = func() map[string]Format {
m := map[string]Format{}
for _, f := range Formats {
m[string(f)] = f
}
return m
}()
// FormatFromString parses a string into a Format, or returns
// ErrFormatStringMalformed.
func FormatFromString(str string) (Format, error) {
if f, ok := strsToFormats[str]; ok {
return f, nil
}
return "", ErrFormatStringMalformed
}
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