Initial Bitbucket→GitHub migration commit, based on release v2.0.0.

sort.go

@@ -0,0 +1,48 @@
+/*
+	Copyright © 2014–2019 Thomas Michael Edwards. All rights reserved.
+	Use of this source code is governed by a Simplified BSD License which
+	can be found in the LICENSE file.
+*/
+
+package main
+
+import (
+	"unicode"
+)
+
+type StringsInsensitively []string
+
+func (p StringsInsensitively) Len() int {
+	return len(p)
+}
+
+func (p StringsInsensitively) Swap(i, j int) {
+	p[i], p[j] = p[j], p[i]
+}
+
+func (p StringsInsensitively) Less(i, j int) bool {
+	iRunes := []rune(p[i])
+	jRunes := []rune(p[j])
+
+	uBound := len(iRunes)
+	if uBound > len(jRunes) {
+		uBound = len(jRunes)
+	}
+
+	for pos := 0; pos < uBound; pos++ {
+		iR := iRunes[pos]
+		jR := jRunes[pos]
+
+		iRLo := unicode.ToLower(iR)
+		jRLo := unicode.ToLower(jR)
+
+		if iRLo != jRLo {
+			return iRLo < jRLo
+		}
+		if iR != jR {
+			return iR < jR
+		}
+	}
+
+	return false
+}