cli: --rand/--rand-v (random verse) + --rand-ch (random chapter) from the corpus, using the config default version; v0.16.0

1 files changed, 12 insertions, 0 deletions

diff --git a/internal/bible/bible.go b/internal/bible/bible.go
index 312daeb..1603188 100644
--- a/internal/bible/bible.go
+++ b/internal/bible/bible.go
@@ -71,3 +71,15 @@ func Chapters(version, book string) []int {
 	sort.Ints(chaps)
 	return chaps
 }
+
+// CorpusBooks returns the book names present in a version's corpus, sorted
+// (empty for a version with no embedded corpus, e.g. "bt").
+func CorpusBooks(version string) []string {
+	c := load(version)
+	books := make([]string, 0, len(c.books))
+	for b := range c.books {
+		books = append(books, b)
+	}
+	sort.Strings(books)
+	return books
+}